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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt3Support module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qglobal.h"
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#if defined(Q_CC_BOR)
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// needed for qsort() because of a std namespace problem on Borland
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#include "qplatformdefs.h"
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#endif
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#include "q3listbox.h"
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#ifndef QT_NO_LISTBOX
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#include "qapplication.h"
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#include "qevent.h"
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#include "qfontmetrics.h"
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#include "qpainter.h"
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#include "qpixmap.h"
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#include "qstringlist.h"
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#include "qstyle.h"
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#include "qstyleoption.h"
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#include "qtimer.h"
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#include "qvector.h"
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#include "qpointer.h"
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#ifndef QT_NO_ACCESSIBILITY
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#include "qaccessible.h"
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#endif
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#include <stdlib.h>
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QT_BEGIN_NAMESPACE
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class Q3ListBoxPrivate
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{
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public:
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Q3ListBoxPrivate(Q3ListBox *lb):
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head(0), last(0), cache(0), cacheIndex(-1), current(0),
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highlighted(0), tmpCurrent(0), columnPos(1), rowPos(1), rowPosCache(0),
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columnPosOne(0), rowMode(Q3ListBox::FixedNumber),
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columnMode(Q3ListBox::FixedNumber), numRows(1), numColumns(1),
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currentRow(0), currentColumn(0),
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mousePressRow(-1), mousePressColumn(-1),
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mouseMoveRow(-1), mouseMoveColumn(-1), mouseInternalPress(false),
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scrollTimer(0), updateTimer(0), visibleTimer(0),
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selectionMode(Q3ListBox::Single),
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count(0),
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listBox(lb), currInputString(QString()),
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rowModeWins(false),
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ignoreMoves(false),
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layoutDirty(true),
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mustPaintAll(true),
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dragging(false),
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dirtyDrag (false),
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variableHeight(true /* !!! ### false */),
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variableWidth(false),
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inMenuMode(false)
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{}
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int findItemByName(int item, const QString &text);
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~Q3ListBoxPrivate();
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Q3ListBoxItem * head, *last, *cache;
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int cacheIndex;
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Q3ListBoxItem * current, *highlighted, *tmpCurrent;
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QVector<int> columnPos;
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QVector<int> rowPos;
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int rowPosCache;
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int columnPosOne;
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Q3ListBox::LayoutMode rowMode;
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Q3ListBox::LayoutMode columnMode;
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int numRows;
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int numColumns;
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int currentRow;
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int currentColumn;
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int mousePressRow;
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int mousePressColumn;
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int mouseMoveRow;
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int mouseMoveColumn;
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bool mouseInternalPress;
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QTimer * scrollTimer;
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QTimer * updateTimer;
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QTimer * visibleTimer;
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QTimer * resizeTimer;
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QPoint scrollPos;
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Q3ListBox::SelectionMode selectionMode;
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int count;
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Q3ListBox *listBox;
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QString currInputString;
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QTimer *inputTimer;
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Q3ListBoxItem *pressedItem, *selectAnchor;
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uint select :1;
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uint pressedSelected :1;
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uint rowModeWins :1;
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uint ignoreMoves :1;
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uint clearing :1;
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uint layoutDirty :1;
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uint mustPaintAll :1;
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uint dragging :1;
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uint dirtyDrag :1;
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uint variableHeight :1;
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uint variableWidth :1;
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uint inMenuMode :1;
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QRect *rubber;
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struct SortableItem {
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Q3ListBoxItem *item;
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};
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};
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Q3ListBoxPrivate::~Q3ListBoxPrivate()
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{
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Q_ASSERT(!head);
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}
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/*!
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\class Q3ListBoxItem
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\brief The Q3ListBoxItem class is the base class of all list box items.
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\compat
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This class is an abstract base class used for all list box items.
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If you need to insert customized items into a Q3ListBox you must
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inherit this class and reimplement paint(), height() and width().
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\sa Q3ListBox
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*/
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/*!
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Constructs an empty list box item in the list box \a listbox.
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*/
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Q3ListBoxItem::Q3ListBoxItem(Q3ListBox* listbox)
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{
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lbox = listbox;
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s = false;
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dirty = true;
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custom_highlight = false;
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selectable = true;
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p = n = 0;
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if (listbox)
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listbox->insertItem(this);
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}
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/*!
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Constructs an empty list box item in the list box \a listbox and
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inserts it after the item \a after or at the beginning if \a after
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is 0.
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*/
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Q3ListBoxItem::Q3ListBoxItem(Q3ListBox* listbox, Q3ListBoxItem *after)
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{
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lbox = listbox;
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s = false;
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dirty = true;
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custom_highlight = false;
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selectable = true;
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p = n = 0;
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if (listbox)
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listbox->insertItem(this, after);
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}
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/*!
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Destroys the list box item.
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*/
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Q3ListBoxItem::~Q3ListBoxItem()
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{
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if (lbox)
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lbox->takeItem(this);
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}
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/*!
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Defines whether the list box item is responsible for drawing
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itself in a highlighted state when being selected.
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If \a b is false (the default), the list box will draw some
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default highlight indicator before calling paint().
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\sa isSelected(), paint()
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*/
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void Q3ListBoxItem::setCustomHighlighting(bool b)
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{
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custom_highlight = b;
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}
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/*!
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\fn void Q3ListBoxItem::paint(QPainter *p)
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Implement this function to draw your item. The painter, \a p, is
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already open for painting.
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\sa height(), width()
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*/
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/*!
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\fn int Q3ListBoxItem::width(const Q3ListBox* lb) const
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Reimplement this function to return the width of your item. The \a
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lb parameter is the same as listBox() and is provided for
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convenience and compatibility.
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The default implementation returns
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\l{QApplication::globalStrut()}'s width.
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\sa paint(), height()
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*/
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int Q3ListBoxItem::width(const Q3ListBox*) const
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{
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return QApplication::globalStrut().width();
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}
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/*!
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\fn int Q3ListBoxItem::height(const Q3ListBox* lb) const
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Implement this function to return the height of your item. The \a
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lb parameter is the same as listBox() and is provided for
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convenience and compatibility.
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The default implementation returns
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\l{QApplication::globalStrut()}'s height.
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\sa paint(), width()
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*/
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int Q3ListBoxItem::height(const Q3ListBox*) const
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{
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return QApplication::globalStrut().height();
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}
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/*!
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Returns the text of the item. This text is also used for sorting.
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\sa setText()
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*/
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QString Q3ListBoxItem::text() const
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{
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return txt;
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}
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/*!
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Returns the pixmap associated with the item, or 0 if there isn't
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one.
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The default implementation returns 0.
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*/
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const QPixmap *Q3ListBoxItem::pixmap() const
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{
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return 0;
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}
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/*! \fn void Q3ListBoxItem::setSelectable(bool b)
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If \a b is true (the default) then this item can be selected by
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the user; otherwise this item cannot be selected by the user.
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\sa isSelectable()
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*/
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/*! \fn bool Q3ListBoxItem::isSelectable() const
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Returns true if this item is selectable (the default); otherwise
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returns false.
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\sa setSelectable()
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*/
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/*!
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\fn void Q3ListBoxItem::setText(const QString &text)
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Sets the text of the Q3ListBoxItem to \a text. This \a text is also
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used for sorting. The text is not shown unless explicitly drawn in
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paint().
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\sa text()
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*/
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/*!
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\class Q3ListBoxText
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\brief The Q3ListBoxText class provides list box items that display text.
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\compat
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The text is drawn in the widget's current font. If you need
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several different fonts, you must implement your own subclass of
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Q3ListBoxItem.
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\sa Q3ListBox, Q3ListBoxItem
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*/
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/*!
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Constructs a list box item in list box \a listbox showing the text
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\a text.
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*/
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Q3ListBoxText::Q3ListBoxText(Q3ListBox *listbox, const QString &text)
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:Q3ListBoxItem(listbox)
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{
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setText(text);
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}
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/*!
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Constructs a list box item showing the text \a text.
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*/
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Q3ListBoxText::Q3ListBoxText(const QString &text)
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:Q3ListBoxItem()
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{
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setText(text);
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}
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/*!
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Constructs a list box item in list box \a listbox showing the text
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\a text. The item is inserted after the item \a after, or at the
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beginning if \a after is 0.
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*/
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Q3ListBoxText::Q3ListBoxText(Q3ListBox* listbox, const QString &text, Q3ListBoxItem *after)
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: Q3ListBoxItem(listbox, after)
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{
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setText(text);
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}
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/*!
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Destroys the item.
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*/
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Q3ListBoxText::~Q3ListBoxText()
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{
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}
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/*!
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Draws the text using \a painter.
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*/
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void Q3ListBoxText::paint(QPainter *painter)
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{
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int itemHeight = height(listBox());
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QFontMetrics fm = painter->fontMetrics();
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int yPos = ((itemHeight - fm.height()) / 2) + fm.ascent();
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painter->drawText(3, yPos, text());
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}
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/*!
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Returns the height of a line of text in list box \a lb.
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\sa paint(), width()
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*/
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int Q3ListBoxText::height(const Q3ListBox* lb) const
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{
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int h = lb ? lb->fontMetrics().lineSpacing() + 2 : 0;
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return qMax(h, QApplication::globalStrut().height());
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}
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/*!
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Returns the width of this line in list box \a lb.
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\sa paint(), height()
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*/
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int Q3ListBoxText::width(const Q3ListBox* lb) const
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{
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int w = lb ? lb->fontMetrics().width(text()) + 6 : 0;
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return qMax(w, QApplication::globalStrut().width());
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}
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/*!
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\fn int Q3ListBoxText::rtti() const
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\reimp
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Returns 1.
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Make your derived classes return their own values for rtti(), and
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you can distinguish between listbox items. You should use values
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greater than 1000 preferably a large random number, to allow for
|
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extensions to this class.
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*/
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int Q3ListBoxText::rtti() const
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{
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return RTTI;
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}
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/*!
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\class Q3ListBoxPixmap
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\brief The Q3ListBoxPixmap class provides list box items with a
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pixmap and optional text.
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444 |
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\compat
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Items of this class are drawn with the pixmap on the left with the
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optional text to the right of the pixmap.
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449 |
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\sa Q3ListBox, Q3ListBoxItem
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*/
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452 |
|
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453 |
|
|
454 |
/*!
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455 |
Constructs a new list box item in list box \a listbox showing the
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pixmap \a pixmap.
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*/
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459 |
Q3ListBoxPixmap::Q3ListBoxPixmap(Q3ListBox* listbox, const QPixmap &pixmap)
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460 |
: Q3ListBoxItem(listbox)
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461 |
{
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462 |
pm = pixmap;
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463 |
}
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464 |
|
|
465 |
/*!
|
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466 |
Constructs a new list box item showing the pixmap \a pixmap.
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|
467 |
*/
|
|
468 |
|
|
469 |
Q3ListBoxPixmap::Q3ListBoxPixmap(const QPixmap &pixmap)
|
|
470 |
: Q3ListBoxItem()
|
|
471 |
{
|
|
472 |
pm = pixmap;
|
|
473 |
}
|
|
474 |
|
|
475 |
/*!
|
|
476 |
Constructs a new list box item in list box \a listbox showing the
|
|
477 |
pixmap \a pixmap. The item gets inserted after the item \a after,
|
|
478 |
or at the beginning if \a after is 0.
|
|
479 |
*/
|
|
480 |
|
|
481 |
Q3ListBoxPixmap::Q3ListBoxPixmap(Q3ListBox* listbox, const QPixmap &pixmap, Q3ListBoxItem *after)
|
|
482 |
: Q3ListBoxItem(listbox, after)
|
|
483 |
{
|
|
484 |
pm = pixmap;
|
|
485 |
}
|
|
486 |
|
|
487 |
|
|
488 |
/*!
|
|
489 |
Destroys the item.
|
|
490 |
*/
|
|
491 |
|
|
492 |
Q3ListBoxPixmap::~Q3ListBoxPixmap()
|
|
493 |
{
|
|
494 |
}
|
|
495 |
|
|
496 |
|
|
497 |
/*!
|
|
498 |
Constructs a new list box item in list box \a listbox showing the
|
|
499 |
pixmap \a pix and the text \a text.
|
|
500 |
*/
|
|
501 |
Q3ListBoxPixmap::Q3ListBoxPixmap(Q3ListBox* listbox, const QPixmap &pix, const QString& text)
|
|
502 |
: Q3ListBoxItem(listbox)
|
|
503 |
{
|
|
504 |
pm = pix;
|
|
505 |
setText(text);
|
|
506 |
}
|
|
507 |
|
|
508 |
/*!
|
|
509 |
Constructs a new list box item showing the pixmap \a pix and the
|
|
510 |
text to \a text.
|
|
511 |
*/
|
|
512 |
Q3ListBoxPixmap::Q3ListBoxPixmap(const QPixmap & pix, const QString& text)
|
|
513 |
: Q3ListBoxItem()
|
|
514 |
{
|
|
515 |
pm = pix;
|
|
516 |
setText(text);
|
|
517 |
}
|
|
518 |
|
|
519 |
/*!
|
|
520 |
Constructs a new list box item in list box \a listbox showing the
|
|
521 |
pixmap \a pix and the string \a text. The item gets inserted after
|
|
522 |
the item \a after, or at the beginning if \a after is 0.
|
|
523 |
*/
|
|
524 |
Q3ListBoxPixmap::Q3ListBoxPixmap(Q3ListBox* listbox, const QPixmap & pix, const QString& text,
|
|
525 |
Q3ListBoxItem *after)
|
|
526 |
: Q3ListBoxItem(listbox, after)
|
|
527 |
{
|
|
528 |
pm = pix;
|
|
529 |
setText(text);
|
|
530 |
}
|
|
531 |
|
|
532 |
/*!
|
|
533 |
\fn const QPixmap *Q3ListBoxPixmap::pixmap() const
|
|
534 |
|
|
535 |
Returns the pixmap associated with the item.
|
|
536 |
*/
|
|
537 |
|
|
538 |
|
|
539 |
/*!
|
|
540 |
Draws the pixmap using \a painter.
|
|
541 |
*/
|
|
542 |
|
|
543 |
void Q3ListBoxPixmap::paint(QPainter *painter)
|
|
544 |
{
|
|
545 |
int itemHeight = height(listBox());
|
|
546 |
int yPos;
|
|
547 |
|
|
548 |
const QPixmap *pm = pixmap();
|
|
549 |
if (pm && ! pm->isNull()) {
|
|
550 |
yPos = (itemHeight - pm->height()) / 2;
|
|
551 |
painter->drawPixmap(3, yPos, *pm);
|
|
552 |
}
|
|
553 |
|
|
554 |
if (!text().isEmpty()) {
|
|
555 |
QFontMetrics fm = painter->fontMetrics();
|
|
556 |
yPos = ((itemHeight - fm.height()) / 2) + fm.ascent();
|
|
557 |
painter->drawText(pm->width() + 5, yPos, text());
|
|
558 |
}
|
|
559 |
}
|
|
560 |
|
|
561 |
/*!
|
|
562 |
Returns the height of the pixmap in list box \a lb.
|
|
563 |
|
|
564 |
\sa paint(), width()
|
|
565 |
*/
|
|
566 |
|
|
567 |
int Q3ListBoxPixmap::height(const Q3ListBox* lb) const
|
|
568 |
{
|
|
569 |
int h;
|
|
570 |
if (text().isEmpty())
|
|
571 |
h = pm.height();
|
|
572 |
else
|
|
573 |
h = qMax(pm.height(), lb->fontMetrics().lineSpacing() + 2);
|
|
574 |
return qMax(h, QApplication::globalStrut().height());
|
|
575 |
}
|
|
576 |
|
|
577 |
/*!
|
|
578 |
Returns the width of the pixmap plus some margin in list box \a lb.
|
|
579 |
|
|
580 |
\sa paint(), height()
|
|
581 |
*/
|
|
582 |
|
|
583 |
int Q3ListBoxPixmap::width(const Q3ListBox* lb) const
|
|
584 |
{
|
|
585 |
if (text().isEmpty())
|
|
586 |
return qMax(pm.width() + 6, QApplication::globalStrut().width());
|
|
587 |
return qMax(pm.width() + lb->fontMetrics().width(text()) + 6,
|
|
588 |
QApplication::globalStrut().width());
|
|
589 |
}
|
|
590 |
|
|
591 |
/*!
|
|
592 |
\fn int Q3ListBoxPixmap::rtti() const
|
|
593 |
|
|
594 |
\reimp
|
|
595 |
|
|
596 |
Returns 2.
|
|
597 |
|
|
598 |
Make your derived classes return their own values for rtti(), and
|
|
599 |
you can distinguish between listbox items. You should use values
|
|
600 |
greater than 1000 preferably a large random number, to allow for
|
|
601 |
extensions to this class.
|
|
602 |
*/
|
|
603 |
|
|
604 |
int Q3ListBoxPixmap::rtti() const
|
|
605 |
{
|
|
606 |
return RTTI;
|
|
607 |
}
|
|
608 |
|
|
609 |
/*!
|
|
610 |
\class Q3ListBox
|
|
611 |
\brief The Q3ListBox widget provides a list of selectable, read-only items.
|
|
612 |
|
|
613 |
\compat
|
|
614 |
|
|
615 |
This is typically a single-column list in which either no item or
|
|
616 |
one item is selected, but it can also be used in many other ways.
|
|
617 |
|
|
618 |
Q3ListBox will add scroll bars as necessary, but it isn't intended
|
|
619 |
for \e really big lists. If you want more than a few thousand
|
|
620 |
items, it's probably better to use a different widget mainly
|
|
621 |
because the scroll bars won't provide very good navigation, but
|
|
622 |
also because Q3ListBox may become slow with huge lists. (See
|
|
623 |
Q3ListView and Q3Table for possible alternatives.)
|
|
624 |
|
|
625 |
There are a variety of selection modes described in the
|
|
626 |
Q3ListBox::SelectionMode documentation. The default is \l Single
|
|
627 |
selection mode, but you can change it using setSelectionMode().
|
|
628 |
(setMultiSelection() is still provided for compatibility with Qt
|
|
629 |
1.x. We recommend using setSelectionMode() in all code.)
|
|
630 |
|
|
631 |
Because Q3ListBox offers multiple selection it must display
|
|
632 |
keyboard focus and selection state separately. Therefore there are
|
|
633 |
functions both to set the selection state of an item, i.e.
|
|
634 |
setSelected(), and to set which item displays keyboard focus, i.e.
|
|
635 |
setCurrentItem().
|
|
636 |
|
|
637 |
The list box normally arranges its items in a single column and
|
|
638 |
adds a vertical scroll bar if required. It is possible to have a
|
|
639 |
different fixed number of columns (setColumnMode()), or as many
|
|
640 |
columns as will fit in the list box's assigned screen space
|
|
641 |
(setColumnMode(FitToWidth)), or to have a fixed number of rows
|
|
642 |
(setRowMode()) or as many rows as will fit in the list box's
|
|
643 |
assigned screen space (setRowMode(FitToHeight)). In all these
|
|
644 |
cases Q3ListBox will add scroll bars, as appropriate, in at least
|
|
645 |
one direction.
|
|
646 |
|
|
647 |
If multiple rows are used, each row can be as high as necessary
|
|
648 |
(the normal setting), or you can request that all items will have
|
|
649 |
the same height by calling setVariableHeight(false). The same
|
|
650 |
applies to a column's width, see setVariableWidth().
|
|
651 |
|
|
652 |
The Q3ListBox's items are Q3ListBoxItem objects. Q3ListBox provides
|
|
653 |
methods to insert new items as strings, as pixmaps, and as
|
|
654 |
Q3ListBoxItem * (insertItem() with various arguments), and to
|
|
655 |
replace an existing item with a new string, pixmap or Q3ListBoxItem
|
|
656 |
(changeItem() with various arguments). You can also remove items
|
|
657 |
singly with removeItem() or clear() the entire list box. Note that
|
|
658 |
if you create a Q3ListBoxItem yourself and insert it, Q3ListBox
|
|
659 |
takes ownership of the item.
|
|
660 |
|
|
661 |
You can also create a Q3ListBoxItem, such as Q3ListBoxText or
|
|
662 |
Q3ListBoxPixmap, with the list box as first parameter. The item
|
|
663 |
will then append itself. When you delete an item it is
|
|
664 |
automatically removed from the list box.
|
|
665 |
|
|
666 |
The list of items can be arbitrarily large; Q3ListBox will add
|
|
667 |
scroll bars if necessary. Q3ListBox can display a single-column
|
|
668 |
(the common case) or multiple-columns, and offers both single and
|
|
669 |
multiple selection. Q3ListBox does not support multiple-column
|
|
670 |
items (but Q3ListView and Q3Table do), or tree hierarchies (but
|
|
671 |
Q3ListView does).
|
|
672 |
|
|
673 |
The list box items can be accessed both as Q3ListBoxItem objects
|
|
674 |
(recommended) and using integer indexes (the original Q3ListBox
|
|
675 |
implementation used an array of strings internally, and the API
|
|
676 |
still supports this mode of operation). Everything can be done
|
|
677 |
using the new objects, and most things can be done using indexes.
|
|
678 |
|
|
679 |
Each item in a Q3ListBox contains a Q3ListBoxItem. One of the items
|
|
680 |
can be the current item. The currentChanged() signal and the
|
|
681 |
highlighted() signal are emitted when a new item becomes current,
|
|
682 |
e.g. because the user clicks on it or Q3ListBox::setCurrentItem()
|
|
683 |
is called. The selected() signal is emitted when the user
|
|
684 |
double-clicks on an item or presses Enter on the current item.
|
|
685 |
|
|
686 |
If the user does not select anything, no signals are emitted and
|
|
687 |
currentItem() returns -1.
|
|
688 |
|
|
689 |
A list box has Qt::WheelFocus as a default focusPolicy(), i.e. it
|
|
690 |
can get keyboard focus by tabbing, clicking and through the use of
|
|
691 |
the mouse wheel.
|
|
692 |
|
|
693 |
New items can be inserted using insertItem(), insertStrList() or
|
|
694 |
insertStringList().
|
|
695 |
|
|
696 |
By default, vertical and horizontal scroll bars are added and
|
|
697 |
removed as necessary. setHScrollBarMode() and setVScrollBarMode()
|
|
698 |
can be used to change this policy.
|
|
699 |
|
|
700 |
If you need to insert types other than strings and pixmaps, you
|
|
701 |
must define new classes which inherit Q3ListBoxItem.
|
|
702 |
|
|
703 |
\warning The list box assumes ownership of all list box items and
|
|
704 |
will delete them when it does not need them any more.
|
|
705 |
|
|
706 |
\inlineimage qlistbox-m.png Screenshot in Motif style
|
|
707 |
\inlineimage qlistbox-w.png Screenshot in Windows style
|
|
708 |
|
|
709 |
\sa Q3ListView, QComboBox, QButtonGroup
|
|
710 |
*/
|
|
711 |
|
|
712 |
/*!
|
|
713 |
\enum Q3ListBox::SelectionMode
|
|
714 |
|
|
715 |
This enumerated type is used by Q3ListBox to indicate how it reacts
|
|
716 |
to selection by the user.
|
|
717 |
|
|
718 |
\value Single When the user selects an item, any already-selected
|
|
719 |
item becomes unselected and the user cannot unselect the selected
|
|
720 |
item. This means that the user can never clear the selection, even
|
|
721 |
though the selection may be cleared by the application programmer
|
|
722 |
using Q3ListBox::clearSelection().
|
|
723 |
|
|
724 |
\value Multi When the user selects an item the selection status
|
|
725 |
of that item is toggled and the other items are left alone.
|
|
726 |
|
|
727 |
\value Extended When the user selects an item the selection is
|
|
728 |
cleared and the new item selected. However, if the user presses
|
|
729 |
the Ctrl key when clicking on an item, the clicked item gets
|
|
730 |
toggled and all other items are left untouched. And if the user
|
|
731 |
presses the Shift key while clicking on an item, all items between
|
|
732 |
the current item and the clicked item get selected or unselected,
|
|
733 |
depending on the state of the clicked item. Also, multiple items
|
|
734 |
can be selected by dragging the mouse while the left mouse button
|
|
735 |
is kept pressed.
|
|
736 |
|
|
737 |
\value NoSelection Items cannot be selected.
|
|
738 |
|
|
739 |
In other words, \c Single is a real single-selection list box, \c
|
|
740 |
Multi is a real multi-selection list box, \c Extended is a list
|
|
741 |
box in which users can select multiple items but usually want to
|
|
742 |
select either just one or a range of contiguous items, and \c
|
|
743 |
NoSelection is for a list box where the user can look but not
|
|
744 |
touch.
|
|
745 |
*/
|
|
746 |
|
|
747 |
|
|
748 |
/*!
|
|
749 |
\enum Q3ListBox::LayoutMode
|
|
750 |
|
|
751 |
This enum type is used to specify how Q3ListBox lays out its rows
|
|
752 |
and columns.
|
|
753 |
|
|
754 |
\value FixedNumber There is a fixed number of rows (or columns).
|
|
755 |
|
|
756 |
\value FitToWidth There are as many columns as will fit
|
|
757 |
on-screen.
|
|
758 |
|
|
759 |
\value FitToHeight There are as many rows as will fit on-screen.
|
|
760 |
|
|
761 |
\value Variable There are as many rows as are required by the
|
|
762 |
column mode. (Or as many columns as required by the row mode.)
|
|
763 |
|
|
764 |
Example: When you call setRowMode(FitToHeight), columnMode()
|
|
765 |
automatically becomes \c Variable to accommodate the row mode
|
|
766 |
you've set.
|
|
767 |
*/
|
|
768 |
|
|
769 |
/*!
|
|
770 |
\fn void Q3ListBox::onItem(Q3ListBoxItem *i)
|
|
771 |
|
|
772 |
This signal is emitted when the user moves the mouse cursor onto
|
|
773 |
an item, similar to the QWidget::enterEvent() function. \a i is
|
|
774 |
the Q3ListBoxItem that the mouse has moved on.
|
|
775 |
*/
|
|
776 |
|
|
777 |
// ### bug here too? enter/leave event may noit considered. move the
|
|
778 |
// mouse out of the window and back in, to the same item - does it
|
|
779 |
// work?
|
|
780 |
|
|
781 |
/*!
|
|
782 |
\fn void Q3ListBox::onViewport()
|
|
783 |
|
|
784 |
This signal is emitted when the user moves the mouse cursor from
|
|
785 |
an item to an empty part of the list box.
|
|
786 |
*/
|
|
787 |
|
|
788 |
|
|
789 |
/*!
|
|
790 |
Constructs a new empty list box called \a name and with parent \a
|
|
791 |
parent and widget attributes \a f.
|
|
792 |
|
|
793 |
This constructor sets the Qt::WA_StaticContent and the
|
|
794 |
Qt::WA_NoBackground attributes to boost performance when drawing
|
|
795 |
Q3ListBoxItems. This may be unsuitable for custom Q3ListBoxItem
|
|
796 |
classes, in which case Qt::WA_StaticContents and Qt::WA_NoBackground
|
|
797 |
should be cleared on the viewport() after construction.
|
|
798 |
*/
|
|
799 |
|
|
800 |
Q3ListBox::Q3ListBox(QWidget *parent, const char *name, Qt::WindowFlags f)
|
|
801 |
: Q3ScrollView(parent, name, f | Qt::WStaticContents | Qt::WNoAutoErase)
|
|
802 |
{
|
|
803 |
d = new Q3ListBoxPrivate(this);
|
|
804 |
d->updateTimer = new QTimer(this, "listbox update timer");
|
|
805 |
d->visibleTimer = new QTimer(this, "listbox visible timer");
|
|
806 |
d->inputTimer = new QTimer(this, "listbox input timer");
|
|
807 |
d->resizeTimer = new QTimer(this, "listbox resize timer");
|
|
808 |
d->clearing = false;
|
|
809 |
d->pressedItem = 0;
|
|
810 |
d->selectAnchor = 0;
|
|
811 |
d->select = false;
|
|
812 |
d->rubber = 0;
|
|
813 |
|
|
814 |
setMouseTracking(true);
|
|
815 |
viewport()->setMouseTracking(true);
|
|
816 |
|
|
817 |
connect(d->updateTimer, SIGNAL(timeout()),
|
|
818 |
this, SLOT(refreshSlot()));
|
|
819 |
connect(d->visibleTimer, SIGNAL(timeout()),
|
|
820 |
this, SLOT(ensureCurrentVisible()));
|
|
821 |
connect(d->resizeTimer, SIGNAL(timeout()),
|
|
822 |
this, SLOT(adjustItems()));
|
|
823 |
viewport()->setBackgroundRole(QPalette::Base);
|
|
824 |
viewport()->setFocusProxy(this);
|
|
825 |
viewport()->setFocusPolicy(Qt::WheelFocus);
|
|
826 |
setFocusPolicy(Qt::WheelFocus);
|
|
827 |
setAttribute(Qt::WA_MacShowFocusRect);
|
|
828 |
}
|
|
829 |
|
|
830 |
|
|
831 |
Q3ListBox * Q3ListBox::changedListBox = 0;
|
|
832 |
|
|
833 |
/*!
|
|
834 |
Destroys the list box. Deletes all list box items.
|
|
835 |
*/
|
|
836 |
|
|
837 |
Q3ListBox::~Q3ListBox()
|
|
838 |
{
|
|
839 |
if (changedListBox == this)
|
|
840 |
changedListBox = 0;
|
|
841 |
clear();
|
|
842 |
delete d;
|
|
843 |
d = 0;
|
|
844 |
}
|
|
845 |
|
|
846 |
/*!
|
|
847 |
\fn void Q3ListBox::pressed(Q3ListBoxItem *item)
|
|
848 |
|
|
849 |
This signal is emitted when the user presses any mouse button. If
|
|
850 |
\a item is not 0, the cursor is on \a item. If \a item is 0, the
|
|
851 |
mouse cursor isn't on any item.
|
|
852 |
|
|
853 |
Note that you must not delete any Q3ListBoxItem objects in slots
|
|
854 |
connected to this signal.
|
|
855 |
*/
|
|
856 |
|
|
857 |
/*!
|
|
858 |
\fn void Q3ListBox::pressed(Q3ListBoxItem *item, const QPoint &pnt)
|
|
859 |
\overload
|
|
860 |
|
|
861 |
This signal is emitted when the user presses any mouse button. If
|
|
862 |
\a item is not 0, the cursor is on \a item. If \a item is 0, the
|
|
863 |
mouse cursor isn't on any item.
|
|
864 |
|
|
865 |
\a pnt is the position of the mouse cursor in the global
|
|
866 |
coordinate system (QMouseEvent::globalPos()).
|
|
867 |
|
|
868 |
Note that you must not delete any Q3ListBoxItem objects in slots
|
|
869 |
connected to this signal.
|
|
870 |
|
|
871 |
\sa mouseButtonPressed() rightButtonPressed() clicked()
|
|
872 |
*/
|
|
873 |
|
|
874 |
/*!
|
|
875 |
\fn void Q3ListBox::clicked(Q3ListBoxItem *item)
|
|
876 |
|
|
877 |
This signal is emitted when the user clicks any mouse button. If
|
|
878 |
\a item is not 0, the cursor is on \a item. If \a item is 0, the
|
|
879 |
mouse cursor isn't on any item.
|
|
880 |
|
|
881 |
Note that you must not delete any Q3ListBoxItem objects in slots
|
|
882 |
connected to this signal.
|
|
883 |
*/
|
|
884 |
|
|
885 |
/*!
|
|
886 |
\fn void Q3ListBox::clicked(Q3ListBoxItem *item, const QPoint &pnt)
|
|
887 |
\overload
|
|
888 |
|
|
889 |
This signal is emitted when the user clicks any mouse button. If
|
|
890 |
\a item is not 0, the cursor is on \a item. If \a item is 0, the
|
|
891 |
mouse cursor isn't on any item.
|
|
892 |
|
|
893 |
\a pnt is the position of the mouse cursor in the global
|
|
894 |
coordinate system (QMouseEvent::globalPos()). (If the click's
|
|
895 |
press and release differs by a pixel or two, \a pnt is the
|
|
896 |
position at release time.)
|
|
897 |
|
|
898 |
Note that you must not delete any Q3ListBoxItem objects in slots
|
|
899 |
connected to this signal.
|
|
900 |
*/
|
|
901 |
|
|
902 |
/*!
|
|
903 |
\fn void Q3ListBox::mouseButtonClicked (int button, Q3ListBoxItem * item, const QPoint & pos)
|
|
904 |
|
|
905 |
This signal is emitted when the user clicks mouse button \a
|
|
906 |
button. If \a item is not 0, the cursor is on \a item. If \a item
|
|
907 |
is 0, the mouse cursor isn't on any item.
|
|
908 |
|
|
909 |
\a pos is the position of the mouse cursor in the global
|
|
910 |
coordinate system (QMouseEvent::globalPos()). (If the click's
|
|
911 |
press and release differs by a pixel or two, \a pos is the
|
|
912 |
position at release time.)
|
|
913 |
|
|
914 |
Note that you must not delete any Q3ListBoxItem objects in slots
|
|
915 |
connected to this signal.
|
|
916 |
*/
|
|
917 |
|
|
918 |
/*!
|
|
919 |
\fn void Q3ListBox::mouseButtonPressed (int button, Q3ListBoxItem * item, const QPoint & pos)
|
|
920 |
|
|
921 |
This signal is emitted when the user presses mouse button \a
|
|
922 |
button. If \a item is not 0, the cursor is on \a item. If \a item
|
|
923 |
is 0, the mouse cursor isn't on any item.
|
|
924 |
|
|
925 |
\a pos is the position of the mouse cursor in the global
|
|
926 |
coordinate system (QMouseEvent::globalPos()).
|
|
927 |
|
|
928 |
Note that you must not delete any Q3ListBoxItem objects in slots
|
|
929 |
connected to this signal.
|
|
930 |
*/
|
|
931 |
|
|
932 |
/*!
|
|
933 |
\fn void Q3ListBox::doubleClicked(Q3ListBoxItem *item)
|
|
934 |
|
|
935 |
This signal is emitted whenever an item is double-clicked. It's
|
|
936 |
emitted on the second button press, not the second button release.
|
|
937 |
If \a item is not 0, the cursor is on \a item. If \a item is 0,
|
|
938 |
the mouse cursor isn't on any item.
|
|
939 |
*/
|
|
940 |
|
|
941 |
|
|
942 |
/*!
|
|
943 |
\fn void Q3ListBox::returnPressed(Q3ListBoxItem *item)
|
|
944 |
|
|
945 |
This signal is emitted when Enter or Return is pressed. The
|
|
946 |
\a item passed in the argument is currentItem().
|
|
947 |
*/
|
|
948 |
|
|
949 |
/*!
|
|
950 |
\fn void Q3ListBox::rightButtonClicked(Q3ListBoxItem *item, const QPoint& point)
|
|
951 |
|
|
952 |
This signal is emitted when the right button is clicked. The \a
|
|
953 |
item is the item that the button was clicked on (which could be
|
|
954 |
0 if no item was clicked on), and the \a point is where the
|
|
955 |
click took place in global coordinates.
|
|
956 |
*/
|
|
957 |
|
|
958 |
|
|
959 |
/*!
|
|
960 |
\fn void Q3ListBox::rightButtonPressed (Q3ListBoxItem *item, const QPoint &point)
|
|
961 |
|
|
962 |
This signal is emitted when the right button is pressed. The \a
|
|
963 |
item is the item that the button was pressed over (which could be
|
|
964 |
0 if no item was pressed over), and the \a point is where the
|
|
965 |
press took place in global coordinates.
|
|
966 |
*/
|
|
967 |
|
|
968 |
/*!
|
|
969 |
\fn void Q3ListBox::contextMenuRequested(Q3ListBoxItem *item, const QPoint & pos)
|
|
970 |
|
|
971 |
This signal is emitted when the user invokes a context menu with
|
|
972 |
the right mouse button or with special system keys, with \a item
|
|
973 |
being the item under the mouse cursor or the current item,
|
|
974 |
respectively.
|
|
975 |
|
|
976 |
\a pos is the position for the context menu in the global
|
|
977 |
coordinate system.
|
|
978 |
*/
|
|
979 |
|
|
980 |
/*!
|
|
981 |
\fn void Q3ListBox::selectionChanged()
|
|
982 |
|
|
983 |
This signal is emitted when the selection set of a list box
|
|
984 |
changes. This signal is emitted in each selection mode. If the
|
|
985 |
user selects five items by drag-selecting, Q3ListBox tries to emit
|
|
986 |
just one selectionChanged() signal so the signal can be connected
|
|
987 |
to computationally expensive slots.
|
|
988 |
|
|
989 |
\sa selected() currentItem()
|
|
990 |
*/
|
|
991 |
|
|
992 |
/*!
|
|
993 |
\fn void Q3ListBox::selectionChanged(Q3ListBoxItem *item)
|
|
994 |
\overload
|
|
995 |
|
|
996 |
This signal is emitted when the selection in a \l Single selection
|
|
997 |
list box changes. \a item is the newly selected list box item.
|
|
998 |
|
|
999 |
\sa selected() currentItem()
|
|
1000 |
*/
|
|
1001 |
|
|
1002 |
/*!
|
|
1003 |
\fn void Q3ListBox::currentChanged(Q3ListBoxItem *item)
|
|
1004 |
|
|
1005 |
This signal is emitted when the user makes a new item the current
|
|
1006 |
item. \a item is the new current list box item.
|
|
1007 |
|
|
1008 |
\sa setCurrentItem() currentItem()
|
|
1009 |
*/
|
|
1010 |
|
|
1011 |
/*!
|
|
1012 |
\fn void Q3ListBox::highlighted(int index)
|
|
1013 |
|
|
1014 |
This signal is emitted when the user makes a new item the current
|
|
1015 |
item. \a index is the index of the new current item.
|
|
1016 |
|
|
1017 |
\sa currentChanged() selected() currentItem() selectionChanged()
|
|
1018 |
*/
|
|
1019 |
|
|
1020 |
/*!
|
|
1021 |
\fn void Q3ListBox::highlighted(Q3ListBoxItem *item)
|
|
1022 |
|
|
1023 |
\overload
|
|
1024 |
|
|
1025 |
This signal is emitted when the user makes a new \a item the current
|
|
1026 |
\a item.
|
|
1027 |
|
|
1028 |
\sa currentChanged() selected() currentItem() selectionChanged()
|
|
1029 |
*/
|
|
1030 |
|
|
1031 |
/*!
|
|
1032 |
\fn void Q3ListBox::highlighted(const QString & text)
|
|
1033 |
|
|
1034 |
\overload
|
|
1035 |
|
|
1036 |
This signal is emitted when the user makes a new item the current
|
|
1037 |
item and the item is (or has) as string. The argument is the new
|
|
1038 |
current item's \a text.
|
|
1039 |
|
|
1040 |
\sa currentChanged() selected() currentItem() selectionChanged()
|
|
1041 |
*/
|
|
1042 |
|
|
1043 |
/*!
|
|
1044 |
\fn void Q3ListBox::selected(int index)
|
|
1045 |
|
|
1046 |
This signal is emitted when the user double-clicks on an item or
|
|
1047 |
presses Enter on the current item. \a index is the index of the
|
|
1048 |
selected item.
|
|
1049 |
|
|
1050 |
\sa currentChanged() highlighted() selectionChanged()
|
|
1051 |
*/
|
|
1052 |
|
|
1053 |
/*!
|
|
1054 |
\fn void Q3ListBox::selected(Q3ListBoxItem *item)
|
|
1055 |
|
|
1056 |
\overload
|
|
1057 |
|
|
1058 |
This signal is emitted when the user double-clicks on an \a item or
|
|
1059 |
presses Enter on the current \a item.
|
|
1060 |
|
|
1061 |
\sa currentChanged() highlighted() selectionChanged()
|
|
1062 |
*/
|
|
1063 |
|
|
1064 |
/*!
|
|
1065 |
\fn void Q3ListBox::selected(const QString &text)
|
|
1066 |
|
|
1067 |
\overload
|
|
1068 |
|
|
1069 |
This signal is emitted when the user double-clicks on an item or
|
|
1070 |
presses Enter on the current item, and the item is (or has) a
|
|
1071 |
string. The argument is the \a text of the selected item.
|
|
1072 |
|
|
1073 |
\sa currentChanged() highlighted() selectionChanged()
|
|
1074 |
*/
|
|
1075 |
|
|
1076 |
/*!
|
|
1077 |
\property Q3ListBox::count
|
|
1078 |
\brief the number of items in the list box
|
|
1079 |
*/
|
|
1080 |
|
|
1081 |
uint Q3ListBox::count() const
|
|
1082 |
{
|
|
1083 |
return d->count;
|
|
1084 |
}
|
|
1085 |
|
|
1086 |
#if 0
|
|
1087 |
/*!
|
|
1088 |
Inserts the string list \a list into the list at position \a
|
|
1089 |
index.
|
|
1090 |
|
|
1091 |
If \a index is negative, \a list is inserted at the end of the
|
|
1092 |
list. If \a index is too large, the operation is ignored.
|
|
1093 |
|
|
1094 |
\warning This function uses \c{const char *} rather than QString,
|
|
1095 |
so we recommend against using it. It is provided so that legacy
|
|
1096 |
code will continue to work, and so that programs that certainly
|
|
1097 |
will not need to handle code outside a single 8-bit locale can use
|
|
1098 |
it. See insertStringList() which uses real QStrings.
|
|
1099 |
|
|
1100 |
\warning This function is never significantly faster than a loop
|
|
1101 |
around insertItem().
|
|
1102 |
|
|
1103 |
\sa insertItem(), insertStringList()
|
|
1104 |
*/
|
|
1105 |
|
|
1106 |
void Q3ListBox::insertStrList(const QStrList *list, int index)
|
|
1107 |
{
|
|
1108 |
if (!list) {
|
|
1109 |
Q_ASSERT(list != 0);
|
|
1110 |
return;
|
|
1111 |
}
|
|
1112 |
insertStrList(*list, index);
|
|
1113 |
}
|
|
1114 |
#endif
|
|
1115 |
|
|
1116 |
|
|
1117 |
/*!
|
|
1118 |
Inserts the string list \a list into the list at position \a
|
|
1119 |
index.
|
|
1120 |
|
|
1121 |
If \a index is negative, \a list is inserted at the end of the
|
|
1122 |
list. If \a index is too large, the operation is ignored.
|
|
1123 |
|
|
1124 |
\warning This function is never significantly faster than a loop
|
|
1125 |
around insertItem().
|
|
1126 |
|
|
1127 |
\sa insertItem(), insertStrList()
|
|
1128 |
*/
|
|
1129 |
|
|
1130 |
void Q3ListBox::insertStringList(const QStringList & list, int index)
|
|
1131 |
{
|
|
1132 |
if (index < 0)
|
|
1133 |
index = count();
|
|
1134 |
for (QStringList::ConstIterator it = list.begin(); it != list.end(); ++it)
|
|
1135 |
insertItem(new Q3ListBoxText(*it), index++);
|
|
1136 |
}
|
|
1137 |
|
|
1138 |
|
|
1139 |
#if 0
|
|
1140 |
/*!
|
|
1141 |
\overload
|
|
1142 |
|
|
1143 |
Inserts the string list \a list into the list at position \a
|
|
1144 |
index.
|
|
1145 |
|
|
1146 |
If \a index is negative, \a list is inserted at the end of the
|
|
1147 |
list. If \a index is too large, the operation is ignored.
|
|
1148 |
|
|
1149 |
\warning This function uses \c{const char *} rather than QString,
|
|
1150 |
so we recommend against using it. It is provided so that legacy
|
|
1151 |
code will continue to work, and so that programs that certainly
|
|
1152 |
will not need to handle code outside a single 8-bit locale can use
|
|
1153 |
it. See insertStringList() which uses real QStrings.
|
|
1154 |
|
|
1155 |
\warning This function is never significantly faster than a loop
|
|
1156 |
around insertItem().
|
|
1157 |
|
|
1158 |
\sa insertItem(), insertStringList()
|
|
1159 |
*/
|
|
1160 |
void Q3ListBox::insertStrList(const QStrList & list, int index)
|
|
1161 |
{
|
|
1162 |
QStrListIterator it(list);
|
|
1163 |
const char* txt;
|
|
1164 |
if (index < 0)
|
|
1165 |
index = count();
|
|
1166 |
while ((txt=it.current())) {
|
|
1167 |
++it;
|
|
1168 |
insertItem(new Q3ListBoxText(QString::fromLatin1(txt)),
|
|
1169 |
index++);
|
|
1170 |
}
|
|
1171 |
if (hasFocus() && !d->current)
|
|
1172 |
setCurrentItem(d->head);
|
|
1173 |
}
|
|
1174 |
#endif
|
|
1175 |
|
|
1176 |
|
|
1177 |
/*!
|
|
1178 |
Inserts the \a numStrings strings of the array \a strings into the
|
|
1179 |
list at position \a index.
|
|
1180 |
|
|
1181 |
If \a index is negative, insertStrList() inserts \a strings at the
|
|
1182 |
end of the list. If \a index is too large, the operation is
|
|
1183 |
ignored.
|
|
1184 |
|
|
1185 |
\warning This function uses \c{const char *} rather than QString,
|
|
1186 |
so we recommend against using it. It is provided so that legacy
|
|
1187 |
code will continue to work, and so that programs that certainly
|
|
1188 |
will not need to handle code outside a single 8-bit locale can use
|
|
1189 |
it. See insertStringList() which uses real QStrings.
|
|
1190 |
|
|
1191 |
\warning This function is never significantly faster than a loop
|
|
1192 |
around insertItem().
|
|
1193 |
|
|
1194 |
\sa insertItem(), insertStringList()
|
|
1195 |
*/
|
|
1196 |
|
|
1197 |
void Q3ListBox::insertStrList(const char **strings, int numStrings, int index)
|
|
1198 |
{
|
|
1199 |
if (!strings) {
|
|
1200 |
Q_ASSERT(strings != 0);
|
|
1201 |
return;
|
|
1202 |
}
|
|
1203 |
if (index < 0)
|
|
1204 |
index = count();
|
|
1205 |
int i = 0;
|
|
1206 |
while ((numStrings<0 && strings[i]!=0) || i<numStrings) {
|
|
1207 |
insertItem(new Q3ListBoxText(QString::fromLatin1(strings[i])),
|
|
1208 |
index + i);
|
|
1209 |
i++;
|
|
1210 |
}
|
|
1211 |
if (hasFocus() && !d->current)
|
|
1212 |
setCurrentItem(d->head);
|
|
1213 |
}
|
|
1214 |
|
|
1215 |
/*!
|
|
1216 |
Inserts the item \a lbi into the list at position \a index.
|
|
1217 |
|
|
1218 |
If \a index is negative or larger than the number of items in the
|
|
1219 |
list box, \a lbi is inserted at the end of the list.
|
|
1220 |
|
|
1221 |
\sa insertStrList()
|
|
1222 |
*/
|
|
1223 |
|
|
1224 |
void Q3ListBox::insertItem(const Q3ListBoxItem *lbi, int index)
|
|
1225 |
{
|
|
1226 |
if (!lbi)
|
|
1227 |
return;
|
|
1228 |
|
|
1229 |
if (index < 0)
|
|
1230 |
index = d->count;
|
|
1231 |
|
|
1232 |
if (index >= d->count) {
|
|
1233 |
insertItem(lbi, d->last);
|
|
1234 |
return;
|
|
1235 |
}
|
|
1236 |
|
|
1237 |
Q3ListBoxItem * item = (Q3ListBoxItem *)lbi;
|
|
1238 |
d->count++;
|
|
1239 |
d->cache = 0;
|
|
1240 |
|
|
1241 |
item->lbox = this;
|
|
1242 |
if (!d->head || index == 0) {
|
|
1243 |
item->n = d->head;
|
|
1244 |
item->p = 0;
|
|
1245 |
d->head = item;
|
|
1246 |
item->dirty = true;
|
|
1247 |
if (item->n)
|
|
1248 |
item->n->p = item;
|
|
1249 |
} else {
|
|
1250 |
Q3ListBoxItem * i = d->head;
|
|
1251 |
while (i->n && index > 1) {
|
|
1252 |
i = i->n;
|
|
1253 |
index--;
|
|
1254 |
}
|
|
1255 |
if (i->n) {
|
|
1256 |
item->n = i->n;
|
|
1257 |
item->p = i;
|
|
1258 |
item->n->p = item;
|
|
1259 |
item->p->n = item;
|
|
1260 |
} else {
|
|
1261 |
i->n = item;
|
|
1262 |
item->p = i;
|
|
1263 |
item->n = 0;
|
|
1264 |
}
|
|
1265 |
}
|
|
1266 |
|
|
1267 |
if (hasFocus() && !d->current) {
|
|
1268 |
d->current = d->head;
|
|
1269 |
updateItem(d->current);
|
|
1270 |
emit highlighted(d->current);
|
|
1271 |
emit highlighted(d->current->text());
|
|
1272 |
emit highlighted(index);
|
|
1273 |
}
|
|
1274 |
|
|
1275 |
triggerUpdate(true);
|
|
1276 |
}
|
|
1277 |
|
|
1278 |
/*!
|
|
1279 |
\overload
|
|
1280 |
|
|
1281 |
Inserts the item \a lbi into the list after the item \a after, or
|
|
1282 |
at the beginning if \a after is 0.
|
|
1283 |
|
|
1284 |
\sa insertStrList()
|
|
1285 |
*/
|
|
1286 |
|
|
1287 |
void Q3ListBox::insertItem(const Q3ListBoxItem *lbi, const Q3ListBoxItem *after)
|
|
1288 |
{
|
|
1289 |
if (!lbi)
|
|
1290 |
return;
|
|
1291 |
|
|
1292 |
Q3ListBoxItem * item = (Q3ListBoxItem*)lbi;
|
|
1293 |
d->count++;
|
|
1294 |
d->cache = 0;
|
|
1295 |
|
|
1296 |
item->lbox = this;
|
|
1297 |
if (!d->head || !after) {
|
|
1298 |
item->n = d->head;
|
|
1299 |
item->p = 0;
|
|
1300 |
d->head = item;
|
|
1301 |
item->dirty = true;
|
|
1302 |
if (item->n)
|
|
1303 |
item->n->p = item;
|
|
1304 |
} else {
|
|
1305 |
Q3ListBoxItem * i = (Q3ListBoxItem*) after;
|
|
1306 |
if (i) {
|
|
1307 |
item->n = i->n;
|
|
1308 |
item->p = i;
|
|
1309 |
if (item->n)
|
|
1310 |
item->n->p = item;
|
|
1311 |
if (item->p)
|
|
1312 |
item->p->n = item;
|
|
1313 |
}
|
|
1314 |
}
|
|
1315 |
|
|
1316 |
if (after == d->last)
|
|
1317 |
d->last = (Q3ListBoxItem*) lbi;
|
|
1318 |
|
|
1319 |
if (hasFocus() && !d->current) {
|
|
1320 |
d->current = d->head;
|
|
1321 |
updateItem(d->current);
|
|
1322 |
emit highlighted(d->current);
|
|
1323 |
emit highlighted(d->current->text());
|
|
1324 |
emit highlighted(index(d->current));
|
|
1325 |
}
|
|
1326 |
|
|
1327 |
triggerUpdate(true);
|
|
1328 |
}
|
|
1329 |
|
|
1330 |
/*!
|
|
1331 |
\overload
|
|
1332 |
|
|
1333 |
Inserts a new list box text item with the text \a text into the
|
|
1334 |
list at position \a index.
|
|
1335 |
|
|
1336 |
If \a index is negative, \a text is inserted at the end of the
|
|
1337 |
list.
|
|
1338 |
|
|
1339 |
\sa insertStrList()
|
|
1340 |
*/
|
|
1341 |
|
|
1342 |
void Q3ListBox::insertItem(const QString &text, int index)
|
|
1343 |
{
|
|
1344 |
insertItem(new Q3ListBoxText(text), index);
|
|
1345 |
}
|
|
1346 |
|
|
1347 |
/*!
|
|
1348 |
\overload
|
|
1349 |
|
|
1350 |
Inserts a new list box pixmap item with the pixmap \a pixmap into
|
|
1351 |
the list at position \a index.
|
|
1352 |
|
|
1353 |
If \a index is negative, \a pixmap is inserted at the end of the
|
|
1354 |
list.
|
|
1355 |
|
|
1356 |
\sa insertStrList()
|
|
1357 |
*/
|
|
1358 |
|
|
1359 |
void Q3ListBox::insertItem(const QPixmap &pixmap, int index)
|
|
1360 |
{
|
|
1361 |
insertItem(new Q3ListBoxPixmap(pixmap), index);
|
|
1362 |
}
|
|
1363 |
|
|
1364 |
/*!
|
|
1365 |
\overload
|
|
1366 |
|
|
1367 |
Inserts a new list box pixmap item with the pixmap \a pixmap and
|
|
1368 |
the text \a text into the list at position \a index.
|
|
1369 |
|
|
1370 |
If \a index is negative, \a pixmap is inserted at the end of the
|
|
1371 |
list.
|
|
1372 |
|
|
1373 |
\sa insertStrList()
|
|
1374 |
*/
|
|
1375 |
|
|
1376 |
void Q3ListBox::insertItem(const QPixmap &pixmap, const QString &text, int index)
|
|
1377 |
{
|
|
1378 |
insertItem(new Q3ListBoxPixmap(pixmap, text), index);
|
|
1379 |
}
|
|
1380 |
|
|
1381 |
/*!
|
|
1382 |
Removes and deletes the item at position \a index. If \a index is
|
|
1383 |
equal to currentItem(), a new item becomes current and the
|
|
1384 |
currentChanged() and highlighted() signals are emitted.
|
|
1385 |
|
|
1386 |
\sa insertItem(), clear()
|
|
1387 |
*/
|
|
1388 |
|
|
1389 |
void Q3ListBox::removeItem(int index)
|
|
1390 |
{
|
|
1391 |
bool wasVisible = itemVisible(currentItem());
|
|
1392 |
delete item(index);
|
|
1393 |
triggerUpdate(true);
|
|
1394 |
if (wasVisible)
|
|
1395 |
ensureCurrentVisible();
|
|
1396 |
}
|
|
1397 |
|
|
1398 |
|
|
1399 |
/*!
|
|
1400 |
Deletes all the items in the list.
|
|
1401 |
|
|
1402 |
\sa removeItem()
|
|
1403 |
*/
|
|
1404 |
|
|
1405 |
void Q3ListBox::clear()
|
|
1406 |
{
|
|
1407 |
setContentsPos(0, 0);
|
|
1408 |
bool blocked = signalsBlocked();
|
|
1409 |
blockSignals(true);
|
|
1410 |
d->clearing = true;
|
|
1411 |
d->current = 0;
|
|
1412 |
d->tmpCurrent = 0;
|
|
1413 |
Q3ListBoxItem * i = d->head;
|
|
1414 |
d->head = 0;
|
|
1415 |
while (i) {
|
|
1416 |
Q3ListBoxItem * n = i->n;
|
|
1417 |
i->n = i->p = 0;
|
|
1418 |
delete i;
|
|
1419 |
i = n;
|
|
1420 |
}
|
|
1421 |
d->count = 0;
|
|
1422 |
d->numRows = 1;
|
|
1423 |
d->numColumns = 1;
|
|
1424 |
d->currentRow = 0;
|
|
1425 |
d->currentColumn = 0;
|
|
1426 |
d->mousePressRow = -1;
|
|
1427 |
d->mousePressColumn = -1;
|
|
1428 |
d->mouseMoveRow = -1;
|
|
1429 |
d->mouseMoveColumn = -1;
|
|
1430 |
clearSelection();
|
|
1431 |
d->selectAnchor = 0;
|
|
1432 |
blockSignals(blocked);
|
|
1433 |
triggerUpdate(true);
|
|
1434 |
d->last = 0;
|
|
1435 |
d->clearing = false;
|
|
1436 |
}
|
|
1437 |
|
|
1438 |
|
|
1439 |
/*!
|
|
1440 |
Returns the text at position \a index, or an empty string if there
|
|
1441 |
is no text at that position.
|
|
1442 |
|
|
1443 |
\sa pixmap()
|
|
1444 |
*/
|
|
1445 |
|
|
1446 |
QString Q3ListBox::text(int index) const
|
|
1447 |
{
|
|
1448 |
Q3ListBoxItem * i = item(index);
|
|
1449 |
if (i)
|
|
1450 |
return i->text();
|
|
1451 |
return QString();
|
|
1452 |
}
|
|
1453 |
|
|
1454 |
|
|
1455 |
/*!
|
|
1456 |
Returns a pointer to the pixmap at position \a index, or 0 if
|
|
1457 |
there is no pixmap there.
|
|
1458 |
|
|
1459 |
\sa text()
|
|
1460 |
*/
|
|
1461 |
|
|
1462 |
const QPixmap *Q3ListBox::pixmap(int index) const
|
|
1463 |
{
|
|
1464 |
Q3ListBoxItem * i = item(index);
|
|
1465 |
if (i)
|
|
1466 |
return i->pixmap();
|
|
1467 |
return 0;
|
|
1468 |
}
|
|
1469 |
|
|
1470 |
/*!
|
|
1471 |
\overload
|
|
1472 |
|
|
1473 |
Replaces the item at position \a index with a new list box text
|
|
1474 |
item with text \a text.
|
|
1475 |
|
|
1476 |
The operation is ignored if \a index is out of range.
|
|
1477 |
|
|
1478 |
\sa insertItem(), removeItem()
|
|
1479 |
*/
|
|
1480 |
|
|
1481 |
void Q3ListBox::changeItem(const QString &text, int index)
|
|
1482 |
{
|
|
1483 |
if(index >= 0 && index < (int)count())
|
|
1484 |
changeItem(new Q3ListBoxText(text), index);
|
|
1485 |
}
|
|
1486 |
|
|
1487 |
/*!
|
|
1488 |
\overload
|
|
1489 |
|
|
1490 |
Replaces the item at position \a index with a new list box pixmap
|
|
1491 |
item with pixmap \a pixmap.
|
|
1492 |
|
|
1493 |
The operation is ignored if \a index is out of range.
|
|
1494 |
|
|
1495 |
\sa insertItem(), removeItem()
|
|
1496 |
*/
|
|
1497 |
|
|
1498 |
void Q3ListBox::changeItem(const QPixmap &pixmap, int index)
|
|
1499 |
{
|
|
1500 |
if(index >= 0 && index < (int)count())
|
|
1501 |
changeItem(new Q3ListBoxPixmap(pixmap), index);
|
|
1502 |
}
|
|
1503 |
|
|
1504 |
/*!
|
|
1505 |
\overload
|
|
1506 |
|
|
1507 |
Replaces the item at position \a index with a new list box pixmap
|
|
1508 |
item with pixmap \a pixmap and text \a text.
|
|
1509 |
|
|
1510 |
The operation is ignored if \a index is out of range.
|
|
1511 |
|
|
1512 |
\sa insertItem(), removeItem()
|
|
1513 |
*/
|
|
1514 |
|
|
1515 |
void Q3ListBox::changeItem(const QPixmap &pixmap, const QString &text, int index)
|
|
1516 |
{
|
|
1517 |
if(index >= 0 && index < (int)count())
|
|
1518 |
changeItem(new Q3ListBoxPixmap(pixmap, text), index);
|
|
1519 |
}
|
|
1520 |
|
|
1521 |
|
|
1522 |
|
|
1523 |
/*!
|
|
1524 |
Replaces the item at position \a index with \a lbi. If \a index is
|
|
1525 |
negative or too large, changeItem() does nothing.
|
|
1526 |
|
|
1527 |
The item that has been changed will become selected.
|
|
1528 |
|
|
1529 |
\sa insertItem(), removeItem()
|
|
1530 |
*/
|
|
1531 |
|
|
1532 |
void Q3ListBox::changeItem(const Q3ListBoxItem *lbi, int index)
|
|
1533 |
{
|
|
1534 |
if (!lbi || index < 0 || index >= (int)count())
|
|
1535 |
return;
|
|
1536 |
|
|
1537 |
removeItem(index);
|
|
1538 |
insertItem(lbi, index);
|
|
1539 |
setCurrentItem(index);
|
|
1540 |
}
|
|
1541 |
|
|
1542 |
|
|
1543 |
/*!
|
|
1544 |
\property Q3ListBox::numItemsVisible
|
|
1545 |
\brief the number of visible items.
|
|
1546 |
|
|
1547 |
Both partially and entirely visible items are counted.
|
|
1548 |
*/
|
|
1549 |
|
|
1550 |
int Q3ListBox::numItemsVisible() const
|
|
1551 |
{
|
|
1552 |
doLayout();
|
|
1553 |
|
|
1554 |
int columns = 0;
|
|
1555 |
|
|
1556 |
int x = contentsX();
|
|
1557 |
int i=0;
|
|
1558 |
while (i < (int)d->columnPos.size()-1 &&
|
|
1559 |
d->columnPos[i] < x)
|
|
1560 |
i++;
|
|
1561 |
if (i < (int)d->columnPos.size()-1 &&
|
|
1562 |
d->columnPos[i] > x)
|
|
1563 |
columns++;
|
|
1564 |
x += visibleWidth();
|
|
1565 |
while (i < (int)d->columnPos.size()-1 &&
|
|
1566 |
d->columnPos[i] < x) {
|
|
1567 |
i++;
|
|
1568 |
columns++;
|
|
1569 |
}
|
|
1570 |
|
|
1571 |
int y = contentsY();
|
|
1572 |
int rows = 0;
|
|
1573 |
while (i < (int)d->rowPos.size()-1 &&
|
|
1574 |
d->rowPos[i] < y)
|
|
1575 |
i++;
|
|
1576 |
if (i < (int)d->rowPos.size()-1 &&
|
|
1577 |
d->rowPos[i] > y)
|
|
1578 |
rows++;
|
|
1579 |
y += visibleHeight();
|
|
1580 |
while (i < (int)d->rowPos.size()-1 &&
|
|
1581 |
d->rowPos[i] < y) {
|
|
1582 |
i++;
|
|
1583 |
rows++;
|
|
1584 |
}
|
|
1585 |
|
|
1586 |
return rows*columns;
|
|
1587 |
}
|
|
1588 |
|
|
1589 |
int Q3ListBox::currentItem() const
|
|
1590 |
{
|
|
1591 |
if (!d->current || !d->head)
|
|
1592 |
return -1;
|
|
1593 |
|
|
1594 |
return index(d->current);
|
|
1595 |
}
|
|
1596 |
|
|
1597 |
|
|
1598 |
/*!
|
|
1599 |
\property Q3ListBox::currentText
|
|
1600 |
\brief the text of the current item.
|
|
1601 |
|
|
1602 |
This is equivalent to text(currentItem()).
|
|
1603 |
*/
|
|
1604 |
|
|
1605 |
|
|
1606 |
/*!
|
|
1607 |
\property Q3ListBox::currentItem
|
|
1608 |
\brief the current highlighted item
|
|
1609 |
|
|
1610 |
When setting this property, the highlighting is moved to the item
|
|
1611 |
and the list box scrolled as necessary.
|
|
1612 |
|
|
1613 |
If no item is current, currentItem() returns -1.
|
|
1614 |
*/
|
|
1615 |
|
|
1616 |
void Q3ListBox::setCurrentItem(int index)
|
|
1617 |
{
|
|
1618 |
setCurrentItem(item(index));
|
|
1619 |
}
|
|
1620 |
|
|
1621 |
/*!
|
|
1622 |
\reimp
|
|
1623 |
*/
|
|
1624 |
QVariant Q3ListBox::inputMethodQuery(Qt::InputMethodQuery query) const
|
|
1625 |
{
|
|
1626 |
if (query == Qt::ImMicroFocus)
|
|
1627 |
return d->current ? itemRect(d->current) : QRect();
|
|
1628 |
return QWidget::inputMethodQuery(query);
|
|
1629 |
}
|
|
1630 |
|
|
1631 |
/*!
|
|
1632 |
\overload
|
|
1633 |
|
|
1634 |
Sets the current item to the Q3ListBoxItem \a i.
|
|
1635 |
*/
|
|
1636 |
void Q3ListBox::setCurrentItem(Q3ListBoxItem * i)
|
|
1637 |
{
|
|
1638 |
if (!i || d->current == i)
|
|
1639 |
return;
|
|
1640 |
|
|
1641 |
Q3ListBoxItem * o = d->current;
|
|
1642 |
d->current = i;
|
|
1643 |
int ind = index(i);
|
|
1644 |
|
|
1645 |
if (i && selectionMode() == Single) {
|
|
1646 |
bool changed = false;
|
|
1647 |
if (o && o->s) {
|
|
1648 |
changed = true;
|
|
1649 |
o->s = false;
|
|
1650 |
}
|
|
1651 |
if (i && !i->s && d->selectionMode != NoSelection && i->isSelectable()) {
|
|
1652 |
i->s = true;
|
|
1653 |
changed = true;
|
|
1654 |
emit selectionChanged(i);
|
|
1655 |
#ifndef QT_NO_ACCESSIBILITY
|
|
1656 |
QAccessible::updateAccessibility(viewport(), ind+1, QAccessible::StateChanged);
|
|
1657 |
#endif
|
|
1658 |
}
|
|
1659 |
if (changed) {
|
|
1660 |
emit selectionChanged();
|
|
1661 |
#ifndef QT_NO_ACCESSIBILITY
|
|
1662 |
QAccessible::updateAccessibility(viewport(), 0, QAccessible::Selection);
|
|
1663 |
#endif
|
|
1664 |
}
|
|
1665 |
}
|
|
1666 |
|
|
1667 |
d->currentColumn = ind / numRows();
|
|
1668 |
d->currentRow = ind % numRows();
|
|
1669 |
if (o)
|
|
1670 |
updateItem(o);
|
|
1671 |
if (i)
|
|
1672 |
updateItem(i);
|
|
1673 |
// scroll after the items are redrawn
|
|
1674 |
d->visibleTimer->start(1, true);
|
|
1675 |
|
|
1676 |
QString tmp;
|
|
1677 |
if (i)
|
|
1678 |
tmp = i->text();
|
|
1679 |
emit highlighted(i);
|
|
1680 |
if (!tmp.isNull())
|
|
1681 |
emit highlighted(tmp);
|
|
1682 |
emit highlighted(ind);
|
|
1683 |
emit currentChanged(i);
|
|
1684 |
|
|
1685 |
#ifndef QT_NO_ACCESSIBILITY
|
|
1686 |
QAccessible::updateAccessibility(viewport(), ind+1, QAccessible::Focus);
|
|
1687 |
#endif
|
|
1688 |
}
|
|
1689 |
|
|
1690 |
|
|
1691 |
/*!
|
|
1692 |
Returns a pointer to the item at position \a index, or 0 if \a
|
|
1693 |
index is out of bounds.
|
|
1694 |
|
|
1695 |
\sa index()
|
|
1696 |
*/
|
|
1697 |
|
|
1698 |
Q3ListBoxItem *Q3ListBox::item(int index) const
|
|
1699 |
{
|
|
1700 |
if (index < 0 || index > d->count -1)
|
|
1701 |
return 0;
|
|
1702 |
|
|
1703 |
Q3ListBoxItem * i = d->head;
|
|
1704 |
|
|
1705 |
if (d->cache && index > 0) {
|
|
1706 |
i = d->cache;
|
|
1707 |
int idx = d->cacheIndex;
|
|
1708 |
while (i && idx < index) {
|
|
1709 |
idx++;
|
|
1710 |
i = i->n;
|
|
1711 |
}
|
|
1712 |
while (i && idx > index) {
|
|
1713 |
idx--;
|
|
1714 |
i = i->p;
|
|
1715 |
}
|
|
1716 |
} else {
|
|
1717 |
int idx = index;
|
|
1718 |
while (i && idx > 0) {
|
|
1719 |
idx--;
|
|
1720 |
i = i->n;
|
|
1721 |
}
|
|
1722 |
}
|
|
1723 |
|
|
1724 |
if (index > 0) {
|
|
1725 |
d->cache = i;
|
|
1726 |
d->cacheIndex = index;
|
|
1727 |
}
|
|
1728 |
|
|
1729 |
return i;
|
|
1730 |
}
|
|
1731 |
|
|
1732 |
|
|
1733 |
/*!
|
|
1734 |
Returns the index of \a lbi, or -1 if the item is not in this list
|
|
1735 |
box or \a lbi is 0.
|
|
1736 |
|
|
1737 |
\sa item()
|
|
1738 |
*/
|
|
1739 |
|
|
1740 |
int Q3ListBox::index(const Q3ListBoxItem * lbi) const
|
|
1741 |
{
|
|
1742 |
if (!lbi)
|
|
1743 |
return -1;
|
|
1744 |
Q3ListBoxItem * i_n = d->head;
|
|
1745 |
int c_n = 0;
|
|
1746 |
if (d->cache) {
|
|
1747 |
i_n = d->cache;
|
|
1748 |
c_n = d->cacheIndex;
|
|
1749 |
}
|
|
1750 |
Q3ListBoxItem* i_p = i_n;
|
|
1751 |
int c_p = c_n;
|
|
1752 |
while ((i_n != 0 || i_p != 0) && i_n != lbi && i_p != lbi) {
|
|
1753 |
if (i_n) {
|
|
1754 |
c_n++;
|
|
1755 |
i_n = i_n->n;
|
|
1756 |
}
|
|
1757 |
if (i_p) {
|
|
1758 |
c_p--;
|
|
1759 |
i_p = i_p->p;
|
|
1760 |
}
|
|
1761 |
}
|
|
1762 |
if (i_p == lbi)
|
|
1763 |
return c_p;
|
|
1764 |
if (i_n == lbi)
|
|
1765 |
return c_n;
|
|
1766 |
return -1;
|
|
1767 |
}
|
|
1768 |
|
|
1769 |
|
|
1770 |
|
|
1771 |
/*!
|
|
1772 |
Returns true if the item at position \a index is at least partly
|
|
1773 |
visible; otherwise returns false.
|
|
1774 |
*/
|
|
1775 |
|
|
1776 |
bool Q3ListBox::itemVisible(int index)
|
|
1777 |
{
|
|
1778 |
Q3ListBoxItem * i = item(index);
|
|
1779 |
return i ? itemVisible(i) : false;
|
|
1780 |
}
|
|
1781 |
|
|
1782 |
|
|
1783 |
/*!
|
|
1784 |
\overload
|
|
1785 |
|
|
1786 |
Returns true if \a item is at least partly visible; otherwise
|
|
1787 |
returns false.
|
|
1788 |
*/
|
|
1789 |
|
|
1790 |
bool Q3ListBox::itemVisible(const Q3ListBoxItem * item)
|
|
1791 |
{
|
|
1792 |
if (d->layoutDirty)
|
|
1793 |
doLayout();
|
|
1794 |
|
|
1795 |
int i = index(item);
|
|
1796 |
int col = i / numRows();
|
|
1797 |
int row = i % numRows();
|
|
1798 |
return (d->columnPos[col] < contentsX()+visibleWidth() &&
|
|
1799 |
d->rowPos[row] < contentsY()+visibleHeight() &&
|
|
1800 |
d->columnPos[col+1] > contentsX() &&
|
|
1801 |
d->rowPos[row+1] > contentsY());
|
|
1802 |
}
|
|
1803 |
|
|
1804 |
|
|
1805 |
/*! \reimp */
|
|
1806 |
|
|
1807 |
void Q3ListBox::mousePressEvent(QMouseEvent *e)
|
|
1808 |
{
|
|
1809 |
mousePressEventEx(e);
|
|
1810 |
}
|
|
1811 |
|
|
1812 |
void Q3ListBox::mousePressEventEx(QMouseEvent *e)
|
|
1813 |
{
|
|
1814 |
d->mouseInternalPress = true;
|
|
1815 |
Q3ListBoxItem * i = itemAt(e->pos());
|
|
1816 |
|
|
1817 |
if (!i && !d->current && d->head) {
|
|
1818 |
d->current = d->head;
|
|
1819 |
updateItem(d->head);
|
|
1820 |
}
|
|
1821 |
|
|
1822 |
if (!i && (d->selectionMode != Single || e->button() == Qt::RightButton)
|
|
1823 |
&& !(e->state() & Qt::ControlButton))
|
|
1824 |
clearSelection();
|
|
1825 |
|
|
1826 |
d->select = d->selectionMode == Multi ? (i ? !i->isSelected() : false) : true;
|
|
1827 |
d->pressedSelected = i && i->s;
|
|
1828 |
|
|
1829 |
if (i)
|
|
1830 |
d->selectAnchor = i;
|
|
1831 |
if (i) {
|
|
1832 |
switch(selectionMode()) {
|
|
1833 |
default:
|
|
1834 |
case Single:
|
|
1835 |
if (!i->s || i != d->current) {
|
|
1836 |
if (i->isSelectable())
|
|
1837 |
setSelected(i, true);
|
|
1838 |
else
|
|
1839 |
setCurrentItem(i);
|
|
1840 |
}
|
|
1841 |
break;
|
|
1842 |
case Extended:
|
|
1843 |
if (i) {
|
|
1844 |
bool shouldBlock = false;
|
|
1845 |
if (!(e->state() & Qt::ShiftButton) &&
|
|
1846 |
!(e->state() & Qt::ControlButton)) {
|
|
1847 |
if (!i->isSelected()) {
|
|
1848 |
bool b = signalsBlocked();
|
|
1849 |
blockSignals(true);
|
|
1850 |
clearSelection();
|
|
1851 |
blockSignals(b);
|
|
1852 |
}
|
|
1853 |
setSelected(i, true);
|
|
1854 |
d->dragging = true; // always assume dragging
|
|
1855 |
shouldBlock = true;
|
|
1856 |
} else if (e->state() & Qt::ShiftButton) {
|
|
1857 |
d->pressedSelected = false;
|
|
1858 |
Q3ListBoxItem *oldCurrent = item(currentItem());
|
|
1859 |
bool down = index(oldCurrent) < index(i);
|
|
1860 |
|
|
1861 |
Q3ListBoxItem *lit = down ? oldCurrent : i;
|
|
1862 |
bool select = d->select;
|
|
1863 |
bool blocked = signalsBlocked();
|
|
1864 |
blockSignals(true);
|
|
1865 |
for (;; lit = lit->n) {
|
|
1866 |
if (!lit) {
|
|
1867 |
triggerUpdate(false);
|
|
1868 |
break;
|
|
1869 |
}
|
|
1870 |
if (down && lit == i) {
|
|
1871 |
setSelected(i, select);
|
|
1872 |
triggerUpdate(false);
|
|
1873 |
break;
|
|
1874 |
}
|
|
1875 |
if (!down && lit == oldCurrent) {
|
|
1876 |
setSelected(oldCurrent, select);
|
|
1877 |
triggerUpdate(false);
|
|
1878 |
break;
|
|
1879 |
}
|
|
1880 |
setSelected(lit, select);
|
|
1881 |
}
|
|
1882 |
blockSignals(blocked);
|
|
1883 |
emit selectionChanged();
|
|
1884 |
} else if (e->state() & Qt::ControlButton) {
|
|
1885 |
setSelected(i, !i->isSelected());
|
|
1886 |
shouldBlock = true;
|
|
1887 |
d->pressedSelected = false;
|
|
1888 |
}
|
|
1889 |
bool blocked = signalsBlocked();
|
|
1890 |
blockSignals(shouldBlock);
|
|
1891 |
setCurrentItem(i);
|
|
1892 |
blockSignals(blocked);
|
|
1893 |
}
|
|
1894 |
break;
|
|
1895 |
case Multi:
|
|
1896 |
{
|
|
1897 |
setSelected(i, !i->s);
|
|
1898 |
bool b = signalsBlocked();
|
|
1899 |
blockSignals(true);
|
|
1900 |
setCurrentItem(i);
|
|
1901 |
blockSignals(b);
|
|
1902 |
break;
|
|
1903 |
}
|
|
1904 |
case NoSelection:
|
|
1905 |
setCurrentItem(i);
|
|
1906 |
break;
|
|
1907 |
}
|
|
1908 |
} else {
|
|
1909 |
bool unselect = true;
|
|
1910 |
if (e->button() == Qt::LeftButton) {
|
|
1911 |
if (d->selectionMode == Multi ||
|
|
1912 |
d->selectionMode == Extended) {
|
|
1913 |
d->tmpCurrent = d->current;
|
|
1914 |
d->current = 0;
|
|
1915 |
updateItem(d->tmpCurrent);
|
|
1916 |
if (d->rubber)
|
|
1917 |
delete d->rubber;
|
|
1918 |
d->rubber = 0;
|
|
1919 |
d->rubber = new QRect(e->x(), e->y(), 0, 0);
|
|
1920 |
|
|
1921 |
if (d->selectionMode == Extended && !(e->state() & Qt::ControlButton))
|
|
1922 |
selectAll(false);
|
|
1923 |
unselect = false;
|
|
1924 |
}
|
|
1925 |
if (unselect && (e->button() == Qt::RightButton ||
|
|
1926 |
(selectionMode() == Multi || selectionMode() == Extended)))
|
|
1927 |
clearSelection();
|
|
1928 |
}
|
|
1929 |
}
|
|
1930 |
|
|
1931 |
// for sanity, in case people are event-filtering or whatnot
|
|
1932 |
delete d->scrollTimer;
|
|
1933 |
d->scrollTimer = 0;
|
|
1934 |
if (i) {
|
|
1935 |
d->mousePressColumn = d->currentColumn;
|
|
1936 |
d->mousePressRow = d->currentRow;
|
|
1937 |
} else {
|
|
1938 |
d->mousePressColumn = -1;
|
|
1939 |
d->mousePressRow = -1;
|
|
1940 |
}
|
|
1941 |
d->ignoreMoves = false;
|
|
1942 |
|
|
1943 |
d->pressedItem = i;
|
|
1944 |
|
|
1945 |
emit pressed(i);
|
|
1946 |
emit pressed(i, e->globalPos());
|
|
1947 |
emit mouseButtonPressed(e->button(), i, e->globalPos());
|
|
1948 |
if (e->button() == Qt::RightButton)
|
|
1949 |
emit rightButtonPressed(i, e->globalPos());
|
|
1950 |
}
|
|
1951 |
|
|
1952 |
|
|
1953 |
/*! \reimp */
|
|
1954 |
|
|
1955 |
void Q3ListBox::mouseReleaseEvent(QMouseEvent *e)
|
|
1956 |
{
|
|
1957 |
if (d->selectionMode == Extended &&
|
|
1958 |
d->dragging) {
|
|
1959 |
d->dragging = false;
|
|
1960 |
if (d->current != d->pressedItem) {
|
|
1961 |
updateSelection(); // when we drag, we get an update after we release
|
|
1962 |
}
|
|
1963 |
}
|
|
1964 |
|
|
1965 |
if (d->rubber) {
|
|
1966 |
drawRubber();
|
|
1967 |
delete d->rubber;
|
|
1968 |
d->rubber = 0;
|
|
1969 |
d->current = d->tmpCurrent;
|
|
1970 |
updateItem(d->current);
|
|
1971 |
}
|
|
1972 |
if (d->scrollTimer)
|
|
1973 |
mouseMoveEvent(e);
|
|
1974 |
delete d->scrollTimer;
|
|
1975 |
d->scrollTimer = 0;
|
|
1976 |
d->ignoreMoves = false;
|
|
1977 |
|
|
1978 |
if (d->selectionMode == Extended &&
|
|
1979 |
d->current == d->pressedItem &&
|
|
1980 |
d->pressedSelected && d->current) {
|
|
1981 |
bool block = signalsBlocked();
|
|
1982 |
blockSignals(true);
|
|
1983 |
clearSelection();
|
|
1984 |
blockSignals(block);
|
|
1985 |
d->current->s = true;
|
|
1986 |
emit selectionChanged();
|
|
1987 |
}
|
|
1988 |
|
|
1989 |
Q3ListBoxItem * i = itemAt(e->pos());
|
|
1990 |
bool emitClicked = (d->mousePressColumn != -1 && d->mousePressRow != -1) || !d->pressedItem;
|
|
1991 |
emitClicked = emitClicked && d->pressedItem == i;
|
|
1992 |
d->pressedItem = 0;
|
|
1993 |
d->mousePressRow = -1;
|
|
1994 |
d->mousePressColumn = -1;
|
|
1995 |
d->mouseInternalPress = false;
|
|
1996 |
if (emitClicked) {
|
|
1997 |
emit clicked(i);
|
|
1998 |
emit clicked(i, e->globalPos());
|
|
1999 |
emit mouseButtonClicked(e->button(), i, e->globalPos());
|
|
2000 |
if (e->button() == Qt::RightButton)
|
|
2001 |
emit rightButtonClicked(i, e->globalPos());
|
|
2002 |
}
|
|
2003 |
}
|
|
2004 |
|
|
2005 |
|
|
2006 |
/*! \reimp */
|
|
2007 |
|
|
2008 |
void Q3ListBox::mouseDoubleClickEvent(QMouseEvent *e)
|
|
2009 |
{
|
|
2010 |
bool ok = true;
|
|
2011 |
Q3ListBoxItem *i = itemAt(e->pos());
|
|
2012 |
if (!i || selectionMode() == NoSelection)
|
|
2013 |
ok = false;
|
|
2014 |
|
|
2015 |
d->ignoreMoves = true;
|
|
2016 |
|
|
2017 |
if (d->current && ok) {
|
|
2018 |
Q3ListBoxItem * i = d->current;
|
|
2019 |
QString tmp = d->current->text();
|
|
2020 |
emit selected(currentItem());
|
|
2021 |
emit selected(i);
|
|
2022 |
if (!tmp.isNull())
|
|
2023 |
emit selected(tmp);
|
|
2024 |
emit doubleClicked(i);
|
|
2025 |
}
|
|
2026 |
}
|
|
2027 |
|
|
2028 |
|
|
2029 |
/*! \reimp */
|
|
2030 |
|
|
2031 |
void Q3ListBox::mouseMoveEvent(QMouseEvent *e)
|
|
2032 |
{
|
|
2033 |
Q3ListBoxItem * i = itemAt(e->pos());
|
|
2034 |
if (i != d->highlighted) {
|
|
2035 |
if (i) {
|
|
2036 |
emit onItem(i);
|
|
2037 |
} else {
|
|
2038 |
emit onViewport();
|
|
2039 |
}
|
|
2040 |
d->highlighted = i;
|
|
2041 |
}
|
|
2042 |
|
|
2043 |
if (d->rubber) {
|
|
2044 |
QRect r = d->rubber->normalized();
|
|
2045 |
drawRubber();
|
|
2046 |
d->rubber->setCoords(d->rubber->x(), d->rubber->y(), e->x(), e->y());
|
|
2047 |
doRubberSelection(r, d->rubber->normalized());
|
|
2048 |
drawRubber();
|
|
2049 |
return;
|
|
2050 |
}
|
|
2051 |
|
|
2052 |
if (((e->state() & (Qt::RightButton | Qt::LeftButton | Qt::MidButton)) == 0) ||
|
|
2053 |
d->ignoreMoves)
|
|
2054 |
return;
|
|
2055 |
|
|
2056 |
// hack to keep the combo (and what else?) working: if we get a
|
|
2057 |
// move outside the listbox without having seen a press, discard
|
|
2058 |
// it.
|
|
2059 |
if (!QRect(0, 0, visibleWidth(), visibleHeight()).contains(e->pos()) &&
|
|
2060 |
((d->mousePressColumn < 0 && d->mousePressRow < 0)
|
|
2061 |
|| (e->state() == Qt::NoButton && !d->pressedItem)))
|
|
2062 |
return;
|
|
2063 |
|
|
2064 |
// figure out in what direction to drag-select and perhaps scroll
|
|
2065 |
int dx = 0;
|
|
2066 |
int x = e->x();
|
|
2067 |
if (x >= visibleWidth()) {
|
|
2068 |
x = visibleWidth()-1;
|
|
2069 |
dx = 1;
|
|
2070 |
} else if (x < 0) {
|
|
2071 |
x = 0;
|
|
2072 |
dx = -1;
|
|
2073 |
}
|
|
2074 |
d->mouseMoveColumn = columnAt(x + contentsX());
|
|
2075 |
|
|
2076 |
// sanitize mousePressColumn, if we got here without a mouse press event
|
|
2077 |
if (d->mousePressColumn < 0 && d->mouseMoveColumn >= 0)
|
|
2078 |
d->mousePressColumn = d->mouseMoveColumn;
|
|
2079 |
if (d->mousePressColumn < 0 && d->currentColumn >= 0)
|
|
2080 |
d->mousePressColumn = d->currentColumn;
|
|
2081 |
|
|
2082 |
// if it's beyond the last column, use the last one
|
|
2083 |
if (d->mouseMoveColumn < 0)
|
|
2084 |
d->mouseMoveColumn = dx >= 0 ? numColumns()-1 : 0;
|
|
2085 |
|
|
2086 |
// repeat for y
|
|
2087 |
int dy = 0;
|
|
2088 |
int y = e->y();
|
|
2089 |
if (y >= visibleHeight()) {
|
|
2090 |
y = visibleHeight()-1;
|
|
2091 |
dy = 1;
|
|
2092 |
} else if (y < 0) {
|
|
2093 |
y = 0;
|
|
2094 |
dy = -1;
|
|
2095 |
}
|
|
2096 |
d->mouseMoveRow = rowAt(y + contentsY());
|
|
2097 |
|
|
2098 |
if (d->mousePressRow < 0 && d->mouseMoveRow >= 0)
|
|
2099 |
d->mousePressRow = d->mouseMoveRow;
|
|
2100 |
if (d->mousePressRow < 0 && d->currentRow >= 0)
|
|
2101 |
d->mousePressRow = d->currentRow;
|
|
2102 |
|
|
2103 |
if (d->mousePressRow < 0)
|
|
2104 |
d->mousePressRow = rowAt(x + contentsX());
|
|
2105 |
|
|
2106 |
d->scrollPos = QPoint(dx, dy);
|
|
2107 |
|
|
2108 |
if ((dx || dy) && !d->scrollTimer && e->state() == Qt::LeftButton && e->button() != Qt::LeftButton) {
|
|
2109 |
// start autoscrolling if necessary
|
|
2110 |
d->scrollTimer = new QTimer(this);
|
|
2111 |
connect(d->scrollTimer, SIGNAL(timeout()),
|
|
2112 |
this, SLOT(doAutoScroll()));
|
|
2113 |
d->scrollTimer->start(100, false);
|
|
2114 |
doAutoScroll();
|
|
2115 |
} else if (!d->scrollTimer) {
|
|
2116 |
// or just select the required bits
|
|
2117 |
updateSelection();
|
|
2118 |
}
|
|
2119 |
}
|
|
2120 |
|
|
2121 |
|
|
2122 |
|
|
2123 |
void Q3ListBox::updateSelection()
|
|
2124 |
{
|
|
2125 |
if (d->mouseMoveColumn >= 0 && d->mouseMoveRow >= 0 &&
|
|
2126 |
d->mousePressColumn >= 0 && d->mousePressRow >= 0) {
|
|
2127 |
Q3ListBoxItem * i = item(d->mouseMoveColumn * numRows() +
|
|
2128 |
d->mouseMoveRow);
|
|
2129 |
#ifndef QT_NO_ACCESSIBILITY
|
|
2130 |
int ind = index(i);
|
|
2131 |
#endif
|
|
2132 |
if (selectionMode() == Single || selectionMode() == NoSelection) {
|
|
2133 |
if (i && (d->mouseInternalPress || (windowType() == Qt::Popup)))
|
|
2134 |
setCurrentItem(i);
|
|
2135 |
} else {
|
|
2136 |
if (d->selectionMode == Extended && (
|
|
2137 |
(d->current == d->pressedItem && d->pressedSelected) ||
|
|
2138 |
(d->dirtyDrag && !d->dragging))) {
|
|
2139 |
if (d->dirtyDrag && !d->dragging) // emit after dragging stops
|
|
2140 |
d->dirtyDrag = false;
|
|
2141 |
else
|
|
2142 |
clearSelection(); // don't reset drag-selected items
|
|
2143 |
d->pressedItem = 0;
|
|
2144 |
if (i && i->isSelectable()) {
|
|
2145 |
bool block = signalsBlocked();
|
|
2146 |
blockSignals(true);
|
|
2147 |
i->s = true;
|
|
2148 |
blockSignals(block);
|
|
2149 |
emit selectionChanged();
|
|
2150 |
#ifndef QT_NO_ACCESSIBILITY
|
|
2151 |
QAccessible::updateAccessibility(viewport(), ind+1, QAccessible::StateChanged);
|
|
2152 |
QAccessible::updateAccessibility(viewport(), 0, QAccessible::Selection);
|
|
2153 |
QAccessible::updateAccessibility(viewport(), ind+1, QAccessible::SelectionAdd);
|
|
2154 |
#endif
|
|
2155 |
}
|
|
2156 |
triggerUpdate(false);
|
|
2157 |
} else {
|
|
2158 |
int c = qMin(d->mouseMoveColumn, d->mousePressColumn);
|
|
2159 |
int r = qMin(d->mouseMoveRow, d->mousePressRow);
|
|
2160 |
int c2 = qMax(d->mouseMoveColumn, d->mousePressColumn);
|
|
2161 |
int r2 = qMax(d->mouseMoveRow, d->mousePressRow);
|
|
2162 |
bool changed = false;
|
|
2163 |
while(c <= c2) {
|
|
2164 |
Q3ListBoxItem * i = item(c*numRows()+r);
|
|
2165 |
int rtmp = r;
|
|
2166 |
while(i && rtmp <= r2) {
|
|
2167 |
if ((bool)i->s != (bool)d->select && i->isSelectable()) {
|
|
2168 |
i->s = d->select;
|
|
2169 |
#ifndef QT_NO_ACCESSIBILITY
|
|
2170 |
QAccessible::updateAccessibility(viewport(), ind+1, QAccessible::StateChanged);
|
|
2171 |
QAccessible::updateAccessibility(viewport(), ind+1, d->select ? QAccessible::SelectionAdd : QAccessible::SelectionRemove);
|
|
2172 |
#endif
|
|
2173 |
i->dirty = true;
|
|
2174 |
d->dirtyDrag = changed = true;
|
|
2175 |
}
|
|
2176 |
i = i->n;
|
|
2177 |
rtmp++;
|
|
2178 |
}
|
|
2179 |
c++;
|
|
2180 |
}
|
|
2181 |
if (changed) {
|
|
2182 |
if (!d->dragging) // emit after dragging stops instead
|
|
2183 |
emit selectionChanged();
|
|
2184 |
#ifndef QT_NO_ACCESSIBILITY
|
|
2185 |
QAccessible::updateAccessibility(viewport(), 0, QAccessible::Selection);
|
|
2186 |
#endif
|
|
2187 |
triggerUpdate(false);
|
|
2188 |
}
|
|
2189 |
}
|
|
2190 |
if (i)
|
|
2191 |
setCurrentItem(i);
|
|
2192 |
}
|
|
2193 |
}
|
|
2194 |
}
|
|
2195 |
|
|
2196 |
void Q3ListBox::repaintSelection()
|
|
2197 |
{
|
|
2198 |
if (d->numColumns == 1) {
|
|
2199 |
for (uint i = topItem(); itemVisible(i) && i < count(); ++i) {
|
|
2200 |
Q3ListBoxItem *it = item(i);
|
|
2201 |
if (!it)
|
|
2202 |
break;
|
|
2203 |
if (it->isSelected())
|
|
2204 |
updateItem(it);
|
|
2205 |
}
|
|
2206 |
} else {
|
|
2207 |
for (uint i = 0; i < count(); ++i) {
|
|
2208 |
Q3ListBoxItem *it = item(i);
|
|
2209 |
if (!it)
|
|
2210 |
break;
|
|
2211 |
if (it->isSelected())
|
|
2212 |
updateItem(it);
|
|
2213 |
}
|
|
2214 |
}
|
|
2215 |
}
|
|
2216 |
|
|
2217 |
/*! \reimp
|
|
2218 |
*/
|
|
2219 |
|
|
2220 |
void Q3ListBox::contentsContextMenuEvent(QContextMenuEvent *e)
|
|
2221 |
{
|
|
2222 |
if (!receivers(SIGNAL(contextMenuRequested(Q3ListBoxItem*,QPoint)))) {
|
|
2223 |
e->ignore();
|
|
2224 |
return;
|
|
2225 |
}
|
|
2226 |
if (e->reason() == QContextMenuEvent::Keyboard) {
|
|
2227 |
Q3ListBoxItem *i = item(currentItem());
|
|
2228 |
if (i) {
|
|
2229 |
QRect r = itemRect(i);
|
|
2230 |
emit contextMenuRequested(i, mapToGlobal(r.topLeft() + QPoint(width() / 2, r.height() / 2)));
|
|
2231 |
}
|
|
2232 |
} else {
|
|
2233 |
Q3ListBoxItem * i = itemAt(contentsToViewport(e->pos()));
|
|
2234 |
emit contextMenuRequested(i, e->globalPos());
|
|
2235 |
}
|
|
2236 |
}
|
|
2237 |
|
|
2238 |
/*!\reimp
|
|
2239 |
*/
|
|
2240 |
void Q3ListBox::keyPressEvent(QKeyEvent *e)
|
|
2241 |
{
|
|
2242 |
if ((e->key() == Qt::Key_Tab || e->key() == Qt::Key_Backtab)
|
|
2243 |
&& e->state() & Qt::ControlButton)
|
|
2244 |
e->ignore();
|
|
2245 |
|
|
2246 |
if (count() == 0) {
|
|
2247 |
e->ignore();
|
|
2248 |
return;
|
|
2249 |
}
|
|
2250 |
|
|
2251 |
QPointer<Q3ListBox> selfCheck = this;
|
|
2252 |
|
|
2253 |
Q3ListBoxItem *old = d->current;
|
|
2254 |
if (!old) {
|
|
2255 |
setCurrentItem(d->head);
|
|
2256 |
if (d->selectionMode == Single)
|
|
2257 |
setSelected(d->head, true);
|
|
2258 |
e->ignore();
|
|
2259 |
return;
|
|
2260 |
}
|
|
2261 |
|
|
2262 |
bool selectCurrent = false;
|
|
2263 |
switch (e->key()) {
|
|
2264 |
case Qt::Key_Up:
|
|
2265 |
{
|
|
2266 |
d->currInputString.clear();
|
|
2267 |
if (currentItem() > 0) {
|
|
2268 |
setCurrentItem(currentItem() - 1);
|
|
2269 |
handleItemChange(old, e->state() & Qt::ShiftButton, e->state() & Qt::ControlButton);
|
|
2270 |
}
|
|
2271 |
if (!(e->state() & Qt::ShiftButton) || !d->selectAnchor)
|
|
2272 |
d->selectAnchor = d->current;
|
|
2273 |
}
|
|
2274 |
break;
|
|
2275 |
case Qt::Key_Down:
|
|
2276 |
{
|
|
2277 |
d->currInputString.clear();
|
|
2278 |
if (currentItem() < (int)count() - 1) {
|
|
2279 |
setCurrentItem(currentItem() + 1);
|
|
2280 |
handleItemChange(old, e->state() & Qt::ShiftButton, e->state() & Qt::ControlButton);
|
|
2281 |
}
|
|
2282 |
if (!(e->state() & Qt::ShiftButton) || !d->selectAnchor)
|
|
2283 |
d->selectAnchor = d->current;
|
|
2284 |
}
|
|
2285 |
break;
|
|
2286 |
case Qt::Key_Left:
|
|
2287 |
{
|
|
2288 |
d->currInputString.clear();
|
|
2289 |
if (currentColumn() > 0) {
|
|
2290 |
setCurrentItem(currentItem() - numRows());
|
|
2291 |
handleItemChange(old, e->state() & Qt::ShiftButton, e->state() & Qt::ControlButton);
|
|
2292 |
} else if (numColumns() > 1 && currentItem() > 0) {
|
|
2293 |
int row = currentRow();
|
|
2294 |
setCurrentItem(currentRow() - 1 + (numColumns() - 1) * numRows());
|
|
2295 |
|
|
2296 |
if (currentItem() == -1)
|
|
2297 |
setCurrentItem(row - 1 + (numColumns() - 2) * numRows());
|
|
2298 |
|
|
2299 |
handleItemChange(old, e->state() & Qt::ShiftButton, e->state() & Qt::ControlButton);
|
|
2300 |
} else {
|
|
2301 |
QApplication::sendEvent(horizontalScrollBar(), e);
|
|
2302 |
}
|
|
2303 |
if (!(e->state() & Qt::ShiftButton) || !d->selectAnchor)
|
|
2304 |
d->selectAnchor = d->current;
|
|
2305 |
}
|
|
2306 |
break;
|
|
2307 |
case Qt::Key_Right:
|
|
2308 |
{
|
|
2309 |
d->currInputString.clear();
|
|
2310 |
if (currentColumn() < numColumns()-1) {
|
|
2311 |
int row = currentRow();
|
|
2312 |
int i = currentItem();
|
|
2313 |
Q3ListBoxItem *it = item(i + numRows());
|
|
2314 |
if (!it)
|
|
2315 |
it = item(count()-1);
|
|
2316 |
setCurrentItem(it);
|
|
2317 |
|
|
2318 |
if (currentItem() == -1) {
|
|
2319 |
if (row < numRows() - 1)
|
|
2320 |
setCurrentItem(row + 1);
|
|
2321 |
else
|
|
2322 |
setCurrentItem(i);
|
|
2323 |
}
|
|
2324 |
|
|
2325 |
handleItemChange(old, e->state() & Qt::ShiftButton, e->state() & Qt::ControlButton);
|
|
2326 |
} else if (numColumns() > 1 && currentRow() < numRows()) {
|
|
2327 |
if (currentRow() + 1 < numRows()) {
|
|
2328 |
setCurrentItem(currentRow() + 1);
|
|
2329 |
handleItemChange(old, e->state() & Qt::ShiftButton, e->state() & Qt::ControlButton);
|
|
2330 |
}
|
|
2331 |
} else {
|
|
2332 |
QApplication::sendEvent(horizontalScrollBar(), e);
|
|
2333 |
}
|
|
2334 |
if (!(e->state() & Qt::ShiftButton) || !d->selectAnchor)
|
|
2335 |
d->selectAnchor = d->current;
|
|
2336 |
}
|
|
2337 |
break;
|
|
2338 |
case Qt::Key_Next:
|
|
2339 |
{
|
|
2340 |
d->currInputString.clear();
|
|
2341 |
int i = 0;
|
|
2342 |
if (numColumns() == 1) {
|
|
2343 |
i = currentItem() + numItemsVisible();
|
|
2344 |
i = i > (int)count() - 1 ? (int)count() - 1 : i;
|
|
2345 |
setCurrentItem(i);
|
|
2346 |
setBottomItem(i);
|
|
2347 |
} else {
|
|
2348 |
// I'm not sure about this behavior...
|
|
2349 |
if (currentRow() == numRows() - 1)
|
|
2350 |
i = currentItem() + numRows();
|
|
2351 |
else
|
|
2352 |
i = currentItem() + numRows() - currentRow() - 1;
|
|
2353 |
i = i > (int)count() - 1 ? (int)count() - 1 : i;
|
|
2354 |
setCurrentItem(i);
|
|
2355 |
}
|
|
2356 |
handleItemChange(old, e->state() & Qt::ShiftButton, e->state() & Qt::ControlButton);
|
|
2357 |
if (!(e->state() & Qt::ShiftButton) || !d->selectAnchor)
|
|
2358 |
d->selectAnchor = d->current;
|
|
2359 |
}
|
|
2360 |
break;
|
|
2361 |
case Qt::Key_Prior:
|
|
2362 |
{
|
|
2363 |
selectCurrent = true;
|
|
2364 |
d->currInputString.clear();
|
|
2365 |
int i;
|
|
2366 |
if (numColumns() == 1) {
|
|
2367 |
i = currentItem() - numItemsVisible();
|
|
2368 |
i = i < 0 ? 0 : i;
|
|
2369 |
setCurrentItem(i);
|
|
2370 |
setTopItem(i);
|
|
2371 |
} else {
|
|
2372 |
// I'm not sure about this behavior...
|
|
2373 |
if (currentRow() == 0)
|
|
2374 |
i = currentItem() - numRows();
|
|
2375 |
else
|
|
2376 |
i = currentItem() - currentRow();
|
|
2377 |
i = i < 0 ? 0 : i;
|
|
2378 |
setCurrentItem(i);
|
|
2379 |
}
|
|
2380 |
handleItemChange(old, e->state() & Qt::ShiftButton, e->state() & Qt::ControlButton);
|
|
2381 |
if (!(e->state() & Qt::ShiftButton) || !d->selectAnchor)
|
|
2382 |
d->selectAnchor = d->current;
|
|
2383 |
}
|
|
2384 |
break;
|
|
2385 |
case Qt::Key_Space:
|
|
2386 |
{
|
|
2387 |
selectCurrent = true;
|
|
2388 |
d->currInputString.clear();
|
|
2389 |
toggleCurrentItem();
|
|
2390 |
if (selectionMode() == Extended && d->current->isSelected())
|
|
2391 |
emit highlighted(currentItem());
|
|
2392 |
if (selfCheck && (!(e->state() & Qt::ShiftButton) || !d->selectAnchor))
|
|
2393 |
d->selectAnchor = d->current;
|
|
2394 |
}
|
|
2395 |
break;
|
|
2396 |
case Qt::Key_Return:
|
|
2397 |
case Qt::Key_Enter:
|
|
2398 |
{
|
|
2399 |
selectCurrent = true;
|
|
2400 |
d->currInputString.clear();
|
|
2401 |
if (currentItem() >= 0 && selectionMode() != NoSelection) {
|
|
2402 |
QString tmp = item(currentItem())->text();
|
|
2403 |
emit selected(currentItem());
|
|
2404 |
emit selected(item(currentItem()));
|
|
2405 |
if (!tmp.isEmpty())
|
|
2406 |
emit selected(tmp);
|
|
2407 |
emit returnPressed(item(currentItem()));
|
|
2408 |
}
|
|
2409 |
if (selfCheck && (!(e->state() & Qt::ShiftButton) || !d->selectAnchor))
|
|
2410 |
d->selectAnchor = d->current;
|
|
2411 |
}
|
|
2412 |
break;
|
|
2413 |
case Qt::Key_Home:
|
|
2414 |
{
|
|
2415 |
selectCurrent = true;
|
|
2416 |
d->currInputString.clear();
|
|
2417 |
setCurrentItem(0);
|
|
2418 |
handleItemChange(old, e->state() & Qt::ShiftButton, e->state() & Qt::ControlButton);
|
|
2419 |
if (!(e->state() & Qt::ShiftButton) || !d->selectAnchor)
|
|
2420 |
d->selectAnchor = d->current;
|
|
2421 |
}
|
|
2422 |
break;
|
|
2423 |
case Qt::Key_End:
|
|
2424 |
{
|
|
2425 |
selectCurrent = true;
|
|
2426 |
d->currInputString.clear();
|
|
2427 |
int i = (int)count() - 1;
|
|
2428 |
setCurrentItem(i);
|
|
2429 |
handleItemChange(old, e->state() & Qt::ShiftButton, e->state() & Qt::ControlButton);
|
|
2430 |
if (!(e->state() & Qt::ShiftButton) || !d->selectAnchor)
|
|
2431 |
d->selectAnchor = d->current;
|
|
2432 |
}
|
|
2433 |
break;
|
|
2434 |
default:
|
|
2435 |
{
|
|
2436 |
if (!e->text().isEmpty() && e->text()[0].isPrint() && count()) {
|
|
2437 |
int curItem = currentItem();
|
|
2438 |
if (curItem == -1)
|
|
2439 |
curItem = 0;
|
|
2440 |
if (!d->inputTimer->isActive()) {
|
|
2441 |
d->currInputString = e->text();
|
|
2442 |
curItem = d->findItemByName(++curItem, d->currInputString);
|
|
2443 |
} else {
|
|
2444 |
d->inputTimer->stop();
|
|
2445 |
d->currInputString += e->text();
|
|
2446 |
int oldCurItem = curItem;
|
|
2447 |
curItem = d->findItemByName(curItem, d->currInputString);
|
|
2448 |
if (curItem < 0) {
|
|
2449 |
curItem = d->findItemByName(++oldCurItem, e->text());
|
|
2450 |
d->currInputString = e->text();
|
|
2451 |
}
|
|
2452 |
}
|
|
2453 |
if (curItem >= 0)
|
|
2454 |
setCurrentItem(curItem);
|
|
2455 |
if (curItem >= 0 && selectionMode() == Q3ListBox::Extended) {
|
|
2456 |
bool changed = false;
|
|
2457 |
bool block = signalsBlocked();
|
|
2458 |
blockSignals(true);
|
|
2459 |
selectAll(false);
|
|
2460 |
blockSignals(block);
|
|
2461 |
Q3ListBoxItem *i = item(curItem);
|
|
2462 |
if (!i->s && i->isSelectable()) {
|
|
2463 |
changed = true;
|
|
2464 |
i->s = true;
|
|
2465 |
updateItem(i);
|
|
2466 |
}
|
|
2467 |
if (changed)
|
|
2468 |
emit selectionChanged();
|
|
2469 |
}
|
|
2470 |
d->inputTimer->start(400, true);
|
|
2471 |
} else {
|
|
2472 |
d->currInputString.clear();
|
|
2473 |
if (e->state() & Qt::ControlButton) {
|
|
2474 |
switch (e->key()) {
|
|
2475 |
case Qt::Key_A:
|
|
2476 |
selectAll(true);
|
|
2477 |
break;
|
|
2478 |
}
|
|
2479 |
} else {
|
|
2480 |
e->ignore();
|
|
2481 |
}
|
|
2482 |
}
|
|
2483 |
}
|
|
2484 |
}
|
|
2485 |
|
|
2486 |
if (selfCheck && selectCurrent && selectionMode() == Single &&
|
|
2487 |
d->current && !d->current->s) {
|
|
2488 |
updateItem(d->current);
|
|
2489 |
setSelected(d->current, true);
|
|
2490 |
}
|
|
2491 |
}
|
|
2492 |
|
|
2493 |
|
|
2494 |
/*!\reimp
|
|
2495 |
*/
|
|
2496 |
void Q3ListBox::focusInEvent(QFocusEvent *e)
|
|
2497 |
{
|
|
2498 |
d->mousePressRow = -1;
|
|
2499 |
d->mousePressColumn = -1;
|
|
2500 |
d->inMenuMode = false;
|
|
2501 |
if (e->reason() != Qt::MouseFocusReason && !d->current && d->head) {
|
|
2502 |
d->current = d->head;
|
|
2503 |
Q3ListBoxItem *i = d->current;
|
|
2504 |
QString tmp;
|
|
2505 |
if (i)
|
|
2506 |
tmp = i->text();
|
|
2507 |
int tmp2 = index(i);
|
|
2508 |
emit highlighted(i);
|
|
2509 |
if (!tmp.isNull())
|
|
2510 |
emit highlighted(tmp);
|
|
2511 |
emit highlighted(tmp2);
|
|
2512 |
emit currentChanged(i);
|
|
2513 |
}
|
|
2514 |
if (style()->styleHint(QStyle::SH_ItemView_ChangeHighlightOnFocus, 0, this))
|
|
2515 |
repaintSelection();
|
|
2516 |
|
|
2517 |
if (d->current)
|
|
2518 |
updateItem(currentItem());
|
|
2519 |
}
|
|
2520 |
|
|
2521 |
|
|
2522 |
/*!\reimp
|
|
2523 |
*/
|
|
2524 |
void Q3ListBox::focusOutEvent(QFocusEvent *e)
|
|
2525 |
{
|
|
2526 |
if (style()->styleHint(QStyle::SH_ItemView_ChangeHighlightOnFocus, 0, this)) {
|
|
2527 |
d->inMenuMode =
|
|
2528 |
e->reason() == Qt::PopupFocusReason ||
|
|
2529 |
(qApp->focusWidget() && qApp->focusWidget()->inherits("QMenuBar"));
|
|
2530 |
if (!d->inMenuMode)
|
|
2531 |
repaintSelection();
|
|
2532 |
}
|
|
2533 |
|
|
2534 |
if (d->current)
|
|
2535 |
updateItem(currentItem());
|
|
2536 |
}
|
|
2537 |
|
|
2538 |
/*!\reimp
|
|
2539 |
*/
|
|
2540 |
bool Q3ListBox::eventFilter(QObject *o, QEvent *e)
|
|
2541 |
{
|
|
2542 |
return Q3ScrollView::eventFilter(o, e);
|
|
2543 |
}
|
|
2544 |
|
|
2545 |
/*!
|
|
2546 |
Repaints the item at position \a index in the list.
|
|
2547 |
*/
|
|
2548 |
|
|
2549 |
void Q3ListBox::updateItem(int index)
|
|
2550 |
{
|
|
2551 |
if (index >= 0)
|
|
2552 |
updateItem(item(index));
|
|
2553 |
}
|
|
2554 |
|
|
2555 |
|
|
2556 |
/*!
|
|
2557 |
\overload
|
|
2558 |
|
|
2559 |
Repaints the Q3ListBoxItem \a i.
|
|
2560 |
*/
|
|
2561 |
|
|
2562 |
void Q3ListBox::updateItem(Q3ListBoxItem * i)
|
|
2563 |
{
|
|
2564 |
if (!i)
|
|
2565 |
return;
|
|
2566 |
i->dirty = true;
|
|
2567 |
d->updateTimer->start(0, true);
|
|
2568 |
}
|
|
2569 |
|
|
2570 |
|
|
2571 |
/*!
|
|
2572 |
\property Q3ListBox::selectionMode
|
|
2573 |
\brief the selection mode of the list box
|
|
2574 |
|
|
2575 |
Sets the list box's selection mode, which may be one of \c Single
|
|
2576 |
(the default), \c Extended, \c Multi or \c NoSelection.
|
|
2577 |
|
|
2578 |
\sa SelectionMode
|
|
2579 |
*/
|
|
2580 |
|
|
2581 |
void Q3ListBox::setSelectionMode(SelectionMode mode)
|
|
2582 |
{
|
|
2583 |
if (d->selectionMode == mode)
|
|
2584 |
return;
|
|
2585 |
|
|
2586 |
if ((selectionMode() == Multi || selectionMode() == Extended)
|
|
2587 |
&& (mode == Q3ListBox::Single || mode == Q3ListBox::NoSelection)){
|
|
2588 |
clearSelection();
|
|
2589 |
if ((mode == Q3ListBox::Single) && currentItem())
|
|
2590 |
setSelected(currentItem(), true);
|
|
2591 |
}
|
|
2592 |
|
|
2593 |
d->selectionMode = mode;
|
|
2594 |
triggerUpdate(true);
|
|
2595 |
}
|
|
2596 |
|
|
2597 |
|
|
2598 |
Q3ListBox::SelectionMode Q3ListBox::selectionMode() const
|
|
2599 |
{
|
|
2600 |
return d->selectionMode;
|
|
2601 |
}
|
|
2602 |
|
|
2603 |
|
|
2604 |
/*!
|
|
2605 |
\property Q3ListBox::multiSelection
|
|
2606 |
\brief whether or not the list box is in Multi selection mode
|
|
2607 |
|
|
2608 |
Consider using the \l Q3ListBox::selectionMode property instead of
|
|
2609 |
this property.
|
|
2610 |
|
|
2611 |
When setting this property, Multi selection mode is used if set to true and
|
|
2612 |
to Single selection mode if set to false.
|
|
2613 |
|
|
2614 |
When getting this property, true is returned if the list box is in
|
|
2615 |
Multi selection mode or Extended selection mode, and false if it is
|
|
2616 |
in Single selection mode or NoSelection mode.
|
|
2617 |
|
|
2618 |
\sa selectionMode
|
|
2619 |
*/
|
|
2620 |
|
|
2621 |
bool Q3ListBox::isMultiSelection() const
|
|
2622 |
{
|
|
2623 |
return selectionMode() == Multi || selectionMode() == Extended;
|
|
2624 |
}
|
|
2625 |
|
|
2626 |
void Q3ListBox::setMultiSelection(bool enable)
|
|
2627 |
{
|
|
2628 |
setSelectionMode(enable ? Multi : Single);
|
|
2629 |
}
|
|
2630 |
|
|
2631 |
|
|
2632 |
/*!
|
|
2633 |
Toggles the selection status of currentItem() and repaints if the
|
|
2634 |
list box is a \c Multi selection list box.
|
|
2635 |
|
|
2636 |
\sa setMultiSelection()
|
|
2637 |
*/
|
|
2638 |
|
|
2639 |
void Q3ListBox::toggleCurrentItem()
|
|
2640 |
{
|
|
2641 |
if (selectionMode() == Single ||
|
|
2642 |
selectionMode() == NoSelection ||
|
|
2643 |
!d->current)
|
|
2644 |
return;
|
|
2645 |
|
|
2646 |
if (d->current->s || d->current->isSelectable()) {
|
|
2647 |
d->current->s = !d->current->s;
|
|
2648 |
emit selectionChanged();
|
|
2649 |
#ifndef QT_NO_ACCESSIBILITY
|
|
2650 |
int ind = index(d->current);
|
|
2651 |
QAccessible::updateAccessibility(viewport(), 0, QAccessible::Selection);
|
|
2652 |
QAccessible::updateAccessibility(viewport(), ind+1, QAccessible::StateChanged);
|
|
2653 |
QAccessible::updateAccessibility(viewport(), ind+1, d->current->s ? QAccessible::SelectionAdd : QAccessible::SelectionRemove);
|
|
2654 |
#endif
|
|
2655 |
}
|
|
2656 |
updateItem(d->current);
|
|
2657 |
}
|
|
2658 |
|
|
2659 |
|
|
2660 |
/*!
|
|
2661 |
\overload
|
|
2662 |
|
|
2663 |
If \a select is true the item at position \a index is selected;
|
|
2664 |
otherwise the item is deselected.
|
|
2665 |
*/
|
|
2666 |
|
|
2667 |
void Q3ListBox::setSelected(int index, bool select)
|
|
2668 |
{
|
|
2669 |
setSelected(item(index), select);
|
|
2670 |
}
|
|
2671 |
|
|
2672 |
|
|
2673 |
/*!
|
|
2674 |
Selects \a item if \a select is true or unselects it if \a select
|
|
2675 |
is false, and repaints the item appropriately.
|
|
2676 |
|
|
2677 |
If the list box is a \c Single selection list box and \a select is
|
|
2678 |
true, setSelected() calls setCurrentItem().
|
|
2679 |
|
|
2680 |
If the list box is a \c Single selection list box, \a select is
|
|
2681 |
false, setSelected() calls clearSelection().
|
|
2682 |
|
|
2683 |
\sa setMultiSelection(), setCurrentItem(), clearSelection(), currentItem()
|
|
2684 |
*/
|
|
2685 |
|
|
2686 |
void Q3ListBox::setSelected(Q3ListBoxItem * item, bool select)
|
|
2687 |
{
|
|
2688 |
if (!item || !item->isSelectable() ||
|
|
2689 |
(bool)item->s == select || d->selectionMode == NoSelection)
|
|
2690 |
return;
|
|
2691 |
|
|
2692 |
int ind = index(item);
|
|
2693 |
bool emitHighlighted = (d->current != item) || ( select && (item->s != (uint) select) );
|
|
2694 |
if (selectionMode() == Single) {
|
|
2695 |
if (d->current != item) {
|
|
2696 |
Q3ListBoxItem *o = d->current;
|
|
2697 |
if (d->current && d->current->s)
|
|
2698 |
d->current->s = false;
|
|
2699 |
d->current = item;
|
|
2700 |
#ifndef QT_NO_ACCESSIBILITY
|
|
2701 |
QAccessible::updateAccessibility(viewport(), ind+1, QAccessible::Focus);
|
|
2702 |
#endif
|
|
2703 |
d->currentColumn = ind / numRows();
|
|
2704 |
d->currentRow = ind % numRows();
|
|
2705 |
|
|
2706 |
if (o)
|
|
2707 |
updateItem(o);
|
|
2708 |
}
|
|
2709 |
}
|
|
2710 |
|
|
2711 |
item->s = (uint)select;
|
|
2712 |
updateItem(item);
|
|
2713 |
|
|
2714 |
if (d->selectionMode == Single && select) {
|
|
2715 |
emit selectionChanged(item);
|
|
2716 |
#ifndef QT_NO_ACCESSIBILITY
|
|
2717 |
QAccessible::updateAccessibility(viewport(), ind+1, QAccessible::StateChanged);
|
|
2718 |
#endif
|
|
2719 |
}
|
|
2720 |
emit selectionChanged();
|
|
2721 |
#ifndef QT_NO_ACCESSIBILITY
|
|
2722 |
QAccessible::updateAccessibility(viewport(), 0, QAccessible::Selection);
|
|
2723 |
if (d->selectionMode != Single)
|
|
2724 |
QAccessible::updateAccessibility(viewport(), ind+1, select ? QAccessible::SelectionAdd : QAccessible::SelectionRemove);
|
|
2725 |
#endif
|
|
2726 |
|
|
2727 |
if (emitHighlighted) {
|
|
2728 |
QString tmp;
|
|
2729 |
if (item)
|
|
2730 |
tmp = item->text();
|
|
2731 |
int tmp2 = index(item);
|
|
2732 |
emit highlighted(item);
|
|
2733 |
if (!tmp.isNull())
|
|
2734 |
emit highlighted(tmp);
|
|
2735 |
emit highlighted(tmp2);
|
|
2736 |
emit currentChanged(item);
|
|
2737 |
}
|
|
2738 |
}
|
|
2739 |
|
|
2740 |
|
|
2741 |
/*!
|
|
2742 |
Returns true if item \a i is selected; otherwise returns false.
|
|
2743 |
*/
|
|
2744 |
|
|
2745 |
bool Q3ListBox::isSelected(int i) const
|
|
2746 |
{
|
|
2747 |
if (selectionMode() == Single && i != currentItem())
|
|
2748 |
return false;
|
|
2749 |
|
|
2750 |
Q3ListBoxItem * lbi = item(i);
|
|
2751 |
if (!lbi)
|
|
2752 |
return false; // should not happen
|
|
2753 |
return lbi->s;
|
|
2754 |
}
|
|
2755 |
|
|
2756 |
|
|
2757 |
/*!
|
|
2758 |
\overload
|
|
2759 |
|
|
2760 |
Returns true if item \a i is selected; otherwise returns false.
|
|
2761 |
*/
|
|
2762 |
|
|
2763 |
bool Q3ListBox::isSelected(const Q3ListBoxItem * i) const
|
|
2764 |
{
|
|
2765 |
if (!i)
|
|
2766 |
return false;
|
|
2767 |
|
|
2768 |
return i->s;
|
|
2769 |
}
|
|
2770 |
|
|
2771 |
/*! Returns the selected item if the list box is in
|
|
2772 |
single-selection mode and an item is selected.
|
|
2773 |
|
|
2774 |
If no items are selected or the list box is in another selection mode
|
|
2775 |
this function returns 0.
|
|
2776 |
|
|
2777 |
\sa setSelected() setMultiSelection()
|
|
2778 |
*/
|
|
2779 |
|
|
2780 |
Q3ListBoxItem* Q3ListBox::selectedItem() const
|
|
2781 |
{
|
|
2782 |
if (d->selectionMode != Single)
|
|
2783 |
return 0;
|
|
2784 |
if (isSelected(currentItem()))
|
|
2785 |
return d->current;
|
|
2786 |
return 0;
|
|
2787 |
}
|
|
2788 |
|
|
2789 |
|
|
2790 |
/*!
|
|
2791 |
Deselects all items, if possible.
|
|
2792 |
|
|
2793 |
Note that a \c Single selection list box will automatically select
|
|
2794 |
an item if it has keyboard focus.
|
|
2795 |
*/
|
|
2796 |
|
|
2797 |
void Q3ListBox::clearSelection()
|
|
2798 |
{
|
|
2799 |
selectAll(false);
|
|
2800 |
}
|
|
2801 |
|
|
2802 |
/*!
|
|
2803 |
In \c Multi and \c Extended modes, this function sets all items to
|
|
2804 |
be selected if \a select is true, and to be unselected if \a
|
|
2805 |
select is false.
|
|
2806 |
|
|
2807 |
In \c Single and \c NoSelection modes, this function only changes
|
|
2808 |
the selection status of currentItem().
|
|
2809 |
*/
|
|
2810 |
|
|
2811 |
void Q3ListBox::selectAll(bool select)
|
|
2812 |
{
|
|
2813 |
if (selectionMode() == Multi || selectionMode() == Extended) {
|
|
2814 |
bool b = signalsBlocked();
|
|
2815 |
blockSignals(true);
|
|
2816 |
for (int i = 0; i < (int)count(); i++)
|
|
2817 |
setSelected(i, select);
|
|
2818 |
blockSignals(b);
|
|
2819 |
emit selectionChanged();
|
|
2820 |
} else if (d->current) {
|
|
2821 |
Q3ListBoxItem * i = d->current;
|
|
2822 |
setSelected(i, select);
|
|
2823 |
}
|
|
2824 |
}
|
|
2825 |
|
|
2826 |
/*!
|
|
2827 |
Inverts the selection. Only works in \c Multi and \c Extended
|
|
2828 |
selection mode.
|
|
2829 |
*/
|
|
2830 |
|
|
2831 |
void Q3ListBox::invertSelection()
|
|
2832 |
{
|
|
2833 |
if (d->selectionMode == Single ||
|
|
2834 |
d->selectionMode == NoSelection)
|
|
2835 |
return;
|
|
2836 |
|
|
2837 |
bool b = signalsBlocked();
|
|
2838 |
blockSignals(true);
|
|
2839 |
for (int i = 0; i < (int)count(); i++)
|
|
2840 |
setSelected(i, !item(i)->isSelected());
|
|
2841 |
blockSignals(b);
|
|
2842 |
emit selectionChanged();
|
|
2843 |
}
|
|
2844 |
|
|
2845 |
|
|
2846 |
/*!
|
|
2847 |
Not used anymore; provided for compatibility.
|
|
2848 |
*/
|
|
2849 |
|
|
2850 |
void Q3ListBox::emitChangedSignal(bool)
|
|
2851 |
{
|
|
2852 |
}
|
|
2853 |
|
|
2854 |
|
|
2855 |
/*! \reimp */
|
|
2856 |
|
|
2857 |
QSize Q3ListBox::sizeHint() const
|
|
2858 |
{
|
|
2859 |
if (cachedSizeHint().isValid())
|
|
2860 |
return cachedSizeHint();
|
|
2861 |
|
|
2862 |
ensurePolished();
|
|
2863 |
doLayout();
|
|
2864 |
|
|
2865 |
int i=0;
|
|
2866 |
while(i < 10 &&
|
|
2867 |
i < (int)d->columnPos.size()-1 &&
|
|
2868 |
d->columnPos[i] < 200)
|
|
2869 |
i++;
|
|
2870 |
int x;
|
|
2871 |
x = qMin(200, d->columnPos[i] +
|
|
2872 |
2 * style()->pixelMetric(QStyle::PM_DefaultFrameWidth));
|
|
2873 |
x = qMax(40, x);
|
|
2874 |
|
|
2875 |
i = 0;
|
|
2876 |
while(i < 10 &&
|
|
2877 |
i < (int)d->rowPos.size()-1 &&
|
|
2878 |
d->rowPos[i] < 200)
|
|
2879 |
i++;
|
|
2880 |
int y;
|
|
2881 |
y = qMin(200, d->rowPos[i] +
|
|
2882 |
2 * style()->pixelMetric(QStyle::PM_DefaultFrameWidth));
|
|
2883 |
y = qMax(40, y);
|
|
2884 |
|
|
2885 |
QSize s(x, y);
|
|
2886 |
setCachedSizeHint(s);
|
|
2887 |
return s;
|
|
2888 |
}
|
|
2889 |
|
|
2890 |
/*!
|
|
2891 |
\reimp
|
|
2892 |
*/
|
|
2893 |
|
|
2894 |
QSize Q3ListBox::minimumSizeHint() const
|
|
2895 |
{
|
|
2896 |
return Q3ScrollView::minimumSizeHint();
|
|
2897 |
}
|
|
2898 |
|
|
2899 |
|
|
2900 |
/*!
|
|
2901 |
Ensures that a single paint event will occur at the end of the
|
|
2902 |
current event loop iteration. If \a doLayout is true, the layout
|
|
2903 |
is also redone.
|
|
2904 |
*/
|
|
2905 |
|
|
2906 |
void Q3ListBox::triggerUpdate(bool doLayout)
|
|
2907 |
{
|
|
2908 |
if (doLayout)
|
|
2909 |
d->layoutDirty = d->mustPaintAll = true;
|
|
2910 |
d->updateTimer->start(0, true);
|
|
2911 |
}
|
|
2912 |
|
|
2913 |
|
|
2914 |
void Q3ListBox::setColumnMode(LayoutMode mode)
|
|
2915 |
{
|
|
2916 |
if (mode == Variable)
|
|
2917 |
return;
|
|
2918 |
d->rowModeWins = false;
|
|
2919 |
d->columnMode = mode;
|
|
2920 |
triggerUpdate(true);
|
|
2921 |
}
|
|
2922 |
|
|
2923 |
|
|
2924 |
void Q3ListBox::setColumnMode(int columns)
|
|
2925 |
{
|
|
2926 |
if (columns < 1)
|
|
2927 |
columns = 1;
|
|
2928 |
d->columnMode = FixedNumber;
|
|
2929 |
d->numColumns = columns;
|
|
2930 |
d->rowModeWins = false;
|
|
2931 |
triggerUpdate(true);
|
|
2932 |
}
|
|
2933 |
|
|
2934 |
void Q3ListBox::setRowMode(LayoutMode mode)
|
|
2935 |
{
|
|
2936 |
if (mode == Variable)
|
|
2937 |
return;
|
|
2938 |
d->rowModeWins = true;
|
|
2939 |
d->rowMode = mode;
|
|
2940 |
triggerUpdate(true);
|
|
2941 |
}
|
|
2942 |
|
|
2943 |
|
|
2944 |
void Q3ListBox::setRowMode(int rows)
|
|
2945 |
{
|
|
2946 |
if (rows < 1)
|
|
2947 |
rows = 1;
|
|
2948 |
d->rowMode = FixedNumber;
|
|
2949 |
d->numRows = rows;
|
|
2950 |
d->rowModeWins = true;
|
|
2951 |
triggerUpdate(true);
|
|
2952 |
}
|
|
2953 |
|
|
2954 |
/*!
|
|
2955 |
\property Q3ListBox::columnMode
|
|
2956 |
\brief the column layout mode for this list box.
|
|
2957 |
|
|
2958 |
setColumnMode() sets the layout mode and adjusts the number of
|
|
2959 |
displayed columns. The row layout mode automatically becomes \c
|
|
2960 |
Variable, unless the column mode is \c Variable.
|
|
2961 |
|
|
2962 |
\sa setRowMode() rowMode numColumns
|
|
2963 |
*/
|
|
2964 |
|
|
2965 |
|
|
2966 |
Q3ListBox::LayoutMode Q3ListBox::columnMode() const
|
|
2967 |
{
|
|
2968 |
if (d->rowModeWins)
|
|
2969 |
return Variable;
|
|
2970 |
else
|
|
2971 |
return d->columnMode;
|
|
2972 |
}
|
|
2973 |
|
|
2974 |
|
|
2975 |
/*!
|
|
2976 |
\property Q3ListBox::rowMode
|
|
2977 |
\brief the row layout mode for this list box
|
|
2978 |
|
|
2979 |
This property is normally \c Variable.
|
|
2980 |
|
|
2981 |
setRowMode() sets the layout mode and adjusts the number of
|
|
2982 |
displayed rows. The column layout mode automatically becomes \c
|
|
2983 |
Variable, unless the row mode is \c Variable.
|
|
2984 |
|
|
2985 |
\sa columnMode
|
|
2986 |
*/
|
|
2987 |
|
|
2988 |
|
|
2989 |
Q3ListBox::LayoutMode Q3ListBox::rowMode() const
|
|
2990 |
{
|
|
2991 |
if (d->rowModeWins)
|
|
2992 |
return d->rowMode;
|
|
2993 |
else
|
|
2994 |
return Variable;
|
|
2995 |
}
|
|
2996 |
|
|
2997 |
|
|
2998 |
/*!
|
|
2999 |
\property Q3ListBox::numColumns
|
|
3000 |
\brief the number of columns in the list box
|
|
3001 |
|
|
3002 |
This is normally 1, but can be different if \l
|
|
3003 |
Q3ListBox::columnMode or \l Q3ListBox::rowMode has been set.
|
|
3004 |
|
|
3005 |
\sa columnMode rowMode numRows
|
|
3006 |
*/
|
|
3007 |
|
|
3008 |
int Q3ListBox::numColumns() const
|
|
3009 |
{
|
|
3010 |
if (count() == 0)
|
|
3011 |
return 0;
|
|
3012 |
if (!d->rowModeWins && d->columnMode == FixedNumber)
|
|
3013 |
return d->numColumns;
|
|
3014 |
doLayout();
|
|
3015 |
return d->columnPos.size()-1;
|
|
3016 |
}
|
|
3017 |
|
|
3018 |
|
|
3019 |
/*!
|
|
3020 |
\property Q3ListBox::numRows
|
|
3021 |
\brief the number of rows in the list box.
|
|
3022 |
|
|
3023 |
This is equal to the number of items in the default single-column
|
|
3024 |
layout, but can be different.
|
|
3025 |
|
|
3026 |
\sa columnMode rowMode numColumns
|
|
3027 |
*/
|
|
3028 |
|
|
3029 |
int Q3ListBox::numRows() const
|
|
3030 |
{
|
|
3031 |
if (count() == 0)
|
|
3032 |
return 0;
|
|
3033 |
if (d->rowModeWins && d->rowMode == FixedNumber)
|
|
3034 |
return d->numRows;
|
|
3035 |
doLayout();
|
|
3036 |
return d->rowPos.size()-1;
|
|
3037 |
}
|
|
3038 |
|
|
3039 |
|
|
3040 |
/*!
|
|
3041 |
This function does the hard layout work. You should never need to
|
|
3042 |
call it.
|
|
3043 |
*/
|
|
3044 |
|
|
3045 |
void Q3ListBox::doLayout() const
|
|
3046 |
{
|
|
3047 |
if (!d->layoutDirty || d->resizeTimer->isActive())
|
|
3048 |
return;
|
|
3049 |
ensurePolished();
|
|
3050 |
int c = count();
|
|
3051 |
switch(rowMode()) {
|
|
3052 |
case FixedNumber:
|
|
3053 |
// columnMode() is known to be Variable
|
|
3054 |
tryGeometry(d->numRows, (c+d->numRows-1)/d->numRows);
|
|
3055 |
break;
|
|
3056 |
case FitToHeight:
|
|
3057 |
// columnMode() is known to be Variable
|
|
3058 |
if (d->head) {
|
|
3059 |
// this is basically the FitToWidth code, but edited to use rows.
|
|
3060 |
int maxh = 0;
|
|
3061 |
Q3ListBoxItem * i = d->head;
|
|
3062 |
while (i) {
|
|
3063 |
int h = i->height(this);
|
|
3064 |
if (maxh < h)
|
|
3065 |
maxh = h;
|
|
3066 |
i = i->n;
|
|
3067 |
}
|
|
3068 |
int vh = viewportSize(1, 1).height();
|
|
3069 |
do {
|
|
3070 |
int rows = vh / maxh;
|
|
3071 |
if (rows > c)
|
|
3072 |
rows = c;
|
|
3073 |
if (rows < 1)
|
|
3074 |
rows = 1;
|
|
3075 |
if (variableHeight() && rows < c) {
|
|
3076 |
do {
|
|
3077 |
++rows;
|
|
3078 |
tryGeometry(rows, (c+rows-1)/rows);
|
|
3079 |
} while (rows <= c &&
|
|
3080 |
d->rowPos[(int)d->rowPos.size()-1] <= vh);
|
|
3081 |
--rows;
|
|
3082 |
}
|
|
3083 |
tryGeometry(rows, (c+rows-1)/rows);
|
|
3084 |
int nvh = viewportSize(d->columnPos[(int)d->columnPos.size()-1],
|
|
3085 |
d->rowPos[(int)d->rowPos.size()-1]).height();
|
|
3086 |
if (nvh < vh)
|
|
3087 |
vh = nvh;
|
|
3088 |
} while (d->rowPos.size() > 2 &&
|
|
3089 |
vh < d->rowPos[(int)d->rowPos.size()-1]);
|
|
3090 |
} else {
|
|
3091 |
tryGeometry(1, 1);
|
|
3092 |
}
|
|
3093 |
break;
|
|
3094 |
case Variable:
|
|
3095 |
if (columnMode() == FixedNumber) {
|
|
3096 |
tryGeometry((count()+d->numColumns-1)/d->numColumns,
|
|
3097 |
d->numColumns);
|
|
3098 |
} else if (d->head) { // FitToWidth, at least one item
|
|
3099 |
int maxw = 0;
|
|
3100 |
Q3ListBoxItem * i = d->head;
|
|
3101 |
while (i) {
|
|
3102 |
int w = i->width(this);
|
|
3103 |
if (maxw < w)
|
|
3104 |
maxw = w;
|
|
3105 |
i = i->n;
|
|
3106 |
}
|
|
3107 |
int vw = viewportSize(1, 1).width();
|
|
3108 |
do {
|
|
3109 |
int cols = vw / maxw;
|
|
3110 |
if (cols > c)
|
|
3111 |
cols = c;
|
|
3112 |
if (cols < 1)
|
|
3113 |
cols = 1;
|
|
3114 |
if (variableWidth() && cols < c) {
|
|
3115 |
do {
|
|
3116 |
++cols;
|
|
3117 |
tryGeometry((c+cols-1)/cols, cols);
|
|
3118 |
} while (cols <= c &&
|
|
3119 |
d->columnPos[(int)d->columnPos.size()-1] <= vw);
|
|
3120 |
--cols;
|
|
3121 |
}
|
|
3122 |
tryGeometry((c+cols-1)/cols, cols);
|
|
3123 |
int nvw = viewportSize(d->columnPos[(int)d->columnPos.size()-1],
|
|
3124 |
d->rowPos[(int)d->rowPos.size()-1]).width();
|
|
3125 |
if (nvw < vw)
|
|
3126 |
vw = nvw;
|
|
3127 |
} while (d->columnPos.size() > 2 &&
|
|
3128 |
vw < d->columnPos[(int)d->columnPos.size()-1]);
|
|
3129 |
} else {
|
|
3130 |
tryGeometry(1, 1);
|
|
3131 |
}
|
|
3132 |
break;
|
|
3133 |
}
|
|
3134 |
|
|
3135 |
d->layoutDirty = false;
|
|
3136 |
int w = d->columnPos[(int)d->columnPos.size()-1];
|
|
3137 |
int h = d->rowPos[(int)d->rowPos.size()-1];
|
|
3138 |
QSize s(viewportSize(w, h));
|
|
3139 |
w = qMax(w, s.width());
|
|
3140 |
|
|
3141 |
d->columnPosOne = d->columnPos[1];
|
|
3142 |
// extend the column for simple single-column listboxes
|
|
3143 |
if (columnMode() == FixedNumber && d->numColumns == 1 &&
|
|
3144 |
d->columnPos[1] < w)
|
|
3145 |
d->columnPos[1] = w;
|
|
3146 |
((Q3ListBox *)this)->resizeContents(w, h);
|
|
3147 |
}
|
|
3148 |
|
|
3149 |
|
|
3150 |
/*!
|
|
3151 |
Lay the items out in a \a columns by \a rows array. The array may
|
|
3152 |
be too big: doLayout() is expected to call this with the right
|
|
3153 |
values.
|
|
3154 |
*/
|
|
3155 |
|
|
3156 |
void Q3ListBox::tryGeometry(int rows, int columns) const
|
|
3157 |
{
|
|
3158 |
if (columns < 1)
|
|
3159 |
columns = 1;
|
|
3160 |
d->columnPos.resize(columns+1);
|
|
3161 |
|
|
3162 |
if (rows < 1)
|
|
3163 |
rows = 1;
|
|
3164 |
d->rowPos.resize(rows+1);
|
|
3165 |
|
|
3166 |
// funky hack I: dump the height/width of each column/row in
|
|
3167 |
// {column,row}Pos for later conversion to positions.
|
|
3168 |
int c;
|
|
3169 |
for(c=0; c<=columns; c++)
|
|
3170 |
d->columnPos[c] = 0;
|
|
3171 |
int r;
|
|
3172 |
for(r=0; r<=rows; r++)
|
|
3173 |
d->rowPos[r] = 0;
|
|
3174 |
r = c = 0;
|
|
3175 |
Q3ListBoxItem * i = d->head;
|
|
3176 |
while (i && c < columns) {
|
|
3177 |
if (i == d->current) {
|
|
3178 |
d->currentRow = r;
|
|
3179 |
d->currentColumn = c;
|
|
3180 |
}
|
|
3181 |
|
|
3182 |
int w = i->width(this);
|
|
3183 |
if (d->columnPos[c] < w)
|
|
3184 |
d->columnPos[c] = w;
|
|
3185 |
int h = i->height(this);
|
|
3186 |
if (d->rowPos[r] < h)
|
|
3187 |
d->rowPos[r] = h;
|
|
3188 |
i = i->n;
|
|
3189 |
r++;
|
|
3190 |
if (r == rows) {
|
|
3191 |
r = 0;
|
|
3192 |
c++;
|
|
3193 |
}
|
|
3194 |
}
|
|
3195 |
// funky hack II: if not variable {width,height}, unvariablify it.
|
|
3196 |
if (!variableWidth()) {
|
|
3197 |
int w = 0;
|
|
3198 |
for(c=0; c<columns; c++)
|
|
3199 |
if (w < d->columnPos[c])
|
|
3200 |
w = d->columnPos[c];
|
|
3201 |
for(c=0; c<columns; c++)
|
|
3202 |
d->columnPos[c] = w;
|
|
3203 |
}
|
|
3204 |
if (!variableHeight()) {
|
|
3205 |
int h = 0;
|
|
3206 |
for(r=0; r<rows; r++)
|
|
3207 |
if (h < d->rowPos[r])
|
|
3208 |
h = d->rowPos[r];
|
|
3209 |
for(r=0; r<rows; r++)
|
|
3210 |
d->rowPos[r] = h;
|
|
3211 |
}
|
|
3212 |
// repair the hacking.
|
|
3213 |
int x = 0;
|
|
3214 |
for(c=0; c<=columns; c++) {
|
|
3215 |
int w = d->columnPos[c];
|
|
3216 |
d->columnPos[c] = x;
|
|
3217 |
x += w;
|
|
3218 |
}
|
|
3219 |
int y = 0;
|
|
3220 |
for(r=0; r<=rows; r++) {
|
|
3221 |
int h = d->rowPos[r];
|
|
3222 |
d->rowPos[r] = y;
|
|
3223 |
y += h;
|
|
3224 |
}
|
|
3225 |
}
|
|
3226 |
|
|
3227 |
|
|
3228 |
/*!
|
|
3229 |
Returns the row index of the current item, or -1 if no item is the
|
|
3230 |
current item.
|
|
3231 |
*/
|
|
3232 |
|
|
3233 |
int Q3ListBox::currentRow() const
|
|
3234 |
{
|
|
3235 |
if (!d->current)
|
|
3236 |
return -1;
|
|
3237 |
if (d->currentRow < 0)
|
|
3238 |
d->layoutDirty = true;
|
|
3239 |
if (d->layoutDirty)
|
|
3240 |
doLayout();
|
|
3241 |
return d->currentRow;
|
|
3242 |
}
|
|
3243 |
|
|
3244 |
|
|
3245 |
/*!
|
|
3246 |
Returns the column index of the current item, or -1 if no item is
|
|
3247 |
the current item.
|
|
3248 |
*/
|
|
3249 |
|
|
3250 |
int Q3ListBox::currentColumn() const
|
|
3251 |
{
|
|
3252 |
if (!d->current)
|
|
3253 |
return -1;
|
|
3254 |
if (d->currentColumn < 0)
|
|
3255 |
d->layoutDirty = true;
|
|
3256 |
if (d->layoutDirty)
|
|
3257 |
doLayout();
|
|
3258 |
return d->currentColumn;
|
|
3259 |
}
|
|
3260 |
|
|
3261 |
|
|
3262 |
void Q3ListBox::setTopItem(int index)
|
|
3263 |
{
|
|
3264 |
if (index >= (int)count() || count() == 0)
|
|
3265 |
return;
|
|
3266 |
int col = index / numRows();
|
|
3267 |
int y = d->rowPos[index-col*numRows()];
|
|
3268 |
if (d->columnPos[col] >= contentsX() &&
|
|
3269 |
d->columnPos[col+1] <= contentsX() + visibleWidth())
|
|
3270 |
setContentsPos(contentsX(), y);
|
|
3271 |
else
|
|
3272 |
setContentsPos(d->columnPos[col], y);
|
|
3273 |
}
|
|
3274 |
|
|
3275 |
/*!
|
|
3276 |
Scrolls the list box so the item at position \a index in the list
|
|
3277 |
is displayed in the bottom row of the list box.
|
|
3278 |
|
|
3279 |
\sa setTopItem()
|
|
3280 |
*/
|
|
3281 |
|
|
3282 |
void Q3ListBox::setBottomItem(int index)
|
|
3283 |
{
|
|
3284 |
if (index >= (int)count() || count() == 0)
|
|
3285 |
return;
|
|
3286 |
int col = index / numRows();
|
|
3287 |
int y = d->rowPos[1+index-col*numRows()] - visibleHeight();
|
|
3288 |
if (y < 0)
|
|
3289 |
y = 0;
|
|
3290 |
if (d->columnPos[col] >= contentsX() &&
|
|
3291 |
d->columnPos[col+1] <= contentsX() + visibleWidth())
|
|
3292 |
setContentsPos(contentsX(), y);
|
|
3293 |
else
|
|
3294 |
setContentsPos(d->columnPos[col], y);
|
|
3295 |
}
|
|
3296 |
|
|
3297 |
|
|
3298 |
/*!
|
|
3299 |
Returns the item at point \a p, specified in viewport coordinates,
|
|
3300 |
or a 0 if there is no item at \a p.
|
|
3301 |
|
|
3302 |
Use contentsToViewport() to convert between widget coordinates and
|
|
3303 |
viewport coordinates.
|
|
3304 |
*/
|
|
3305 |
|
|
3306 |
Q3ListBoxItem * Q3ListBox::itemAt(const QPoint& p) const
|
|
3307 |
{
|
|
3308 |
if (d->layoutDirty)
|
|
3309 |
doLayout();
|
|
3310 |
QPoint np = p;
|
|
3311 |
|
|
3312 |
np -= viewport()->pos();
|
|
3313 |
if (!viewport()->rect().contains(np))
|
|
3314 |
return 0;
|
|
3315 |
|
|
3316 |
// take into account contents position
|
|
3317 |
np = viewportToContents(np);
|
|
3318 |
|
|
3319 |
int x = np.x();
|
|
3320 |
int y = np.y();
|
|
3321 |
|
|
3322 |
// return 0 when y is below the last row
|
|
3323 |
if (y > d->rowPos[numRows()])
|
|
3324 |
return 0;
|
|
3325 |
|
|
3326 |
int col = columnAt(x);
|
|
3327 |
int row = rowAt(y);
|
|
3328 |
|
|
3329 |
Q3ListBoxItem *i = item(col * numRows() + row);
|
|
3330 |
if (i && numColumns() > 1) {
|
|
3331 |
if (d->columnPos[col] + i->width(this) >= x)
|
|
3332 |
return i;
|
|
3333 |
} else {
|
|
3334 |
if (d->columnPos[col + 1] >= x)
|
|
3335 |
return i;
|
|
3336 |
}
|
|
3337 |
return 0;
|
|
3338 |
}
|
|
3339 |
|
|
3340 |
|
|
3341 |
/*!
|
|
3342 |
Ensures that the current item is visible.
|
|
3343 |
*/
|
|
3344 |
|
|
3345 |
void Q3ListBox::ensureCurrentVisible()
|
|
3346 |
{
|
|
3347 |
if (!d->current)
|
|
3348 |
return;
|
|
3349 |
|
|
3350 |
doLayout();
|
|
3351 |
|
|
3352 |
int row = currentRow();
|
|
3353 |
int column = currentColumn();
|
|
3354 |
int w = (d->columnPos[column+1] - d->columnPos[column]) / 2;
|
|
3355 |
int h = (d->rowPos[row+1] - d->rowPos[row]) / 2;
|
|
3356 |
// next four lines are Bad. they mean that for pure left-to-right
|
|
3357 |
// languages, textual list box items are displayed better than
|
|
3358 |
// before when there is little space. for non-textual items, or
|
|
3359 |
// other languages, it means... that you really should have enough
|
|
3360 |
// space in the first place :)
|
|
3361 |
if (numColumns() == 1)
|
|
3362 |
w = 0;
|
|
3363 |
if (w*2 > viewport()->width())
|
|
3364 |
w = viewport()->width()/2;
|
|
3365 |
|
|
3366 |
ensureVisible(d->columnPos[column] + w, d->rowPos[row] + h, w, h);
|
|
3367 |
}
|
|
3368 |
|
|
3369 |
|
|
3370 |
/*! \internal */
|
|
3371 |
|
|
3372 |
void Q3ListBox::doAutoScroll()
|
|
3373 |
{
|
|
3374 |
if (d->scrollPos.x() < 0) {
|
|
3375 |
// scroll left
|
|
3376 |
int x = contentsX() - horizontalScrollBar()->singleStep();
|
|
3377 |
if (x < 0)
|
|
3378 |
x = 0;
|
|
3379 |
if (x != contentsX()) {
|
|
3380 |
d->mouseMoveColumn = columnAt(x);
|
|
3381 |
updateSelection();
|
|
3382 |
if (x < contentsX())
|
|
3383 |
setContentsPos(x, contentsY());
|
|
3384 |
}
|
|
3385 |
} else if (d->scrollPos.x() > 0) {
|
|
3386 |
// scroll right
|
|
3387 |
int x = contentsX() + horizontalScrollBar()->singleStep();
|
|
3388 |
if (x + visibleWidth() > contentsWidth())
|
|
3389 |
x = contentsWidth() - visibleWidth();
|
|
3390 |
if (x != contentsX()) {
|
|
3391 |
d->mouseMoveColumn = columnAt(x + visibleWidth() - 1);
|
|
3392 |
updateSelection();
|
|
3393 |
if (x > contentsX())
|
|
3394 |
setContentsPos(x, contentsY());
|
|
3395 |
}
|
|
3396 |
}
|
|
3397 |
|
|
3398 |
if (d->scrollPos.y() < 0) {
|
|
3399 |
// scroll up
|
|
3400 |
int y = contentsY() - verticalScrollBar()->singleStep();
|
|
3401 |
if (y < 0)
|
|
3402 |
y = 0;
|
|
3403 |
if (y != contentsY()) {
|
|
3404 |
y = contentsY() - verticalScrollBar()->singleStep();
|
|
3405 |
d->mouseMoveRow = rowAt(y);
|
|
3406 |
updateSelection();
|
|
3407 |
}
|
|
3408 |
} else if (d->scrollPos.y() > 0) {
|
|
3409 |
// scroll down
|
|
3410 |
int y = contentsY() + verticalScrollBar()->singleStep();
|
|
3411 |
if (y + visibleHeight() > contentsHeight())
|
|
3412 |
y = contentsHeight() - visibleHeight();
|
|
3413 |
if (y != contentsY()) {
|
|
3414 |
y = contentsY() + verticalScrollBar()->singleStep();
|
|
3415 |
d->mouseMoveRow = rowAt(y + visibleHeight() - 1);
|
|
3416 |
updateSelection();
|
|
3417 |
}
|
|
3418 |
}
|
|
3419 |
|
|
3420 |
if (d->scrollPos == QPoint(0, 0)) {
|
|
3421 |
delete d->scrollTimer;
|
|
3422 |
d->scrollTimer = 0;
|
|
3423 |
}
|
|
3424 |
}
|
|
3425 |
|
|
3426 |
|
|
3427 |
/*!
|
|
3428 |
\property Q3ListBox::topItem
|
|
3429 |
\brief the index of an item at the top of the screen.
|
|
3430 |
|
|
3431 |
When getting this property and the listbox has multiple columns,
|
|
3432 |
an arbitrary item is selected and returned.
|
|
3433 |
|
|
3434 |
When setting this property, the list box is scrolled so the item
|
|
3435 |
at position \e index in the list is displayed in the top row of
|
|
3436 |
the list box.
|
|
3437 |
*/
|
|
3438 |
|
|
3439 |
int Q3ListBox::topItem() const
|
|
3440 |
{
|
|
3441 |
doLayout();
|
|
3442 |
|
|
3443 |
// move rightwards to the best column
|
|
3444 |
int col = columnAt(contentsX());
|
|
3445 |
int row = rowAt(contentsY());
|
|
3446 |
return col * numRows() + row;
|
|
3447 |
}
|
|
3448 |
|
|
3449 |
|
|
3450 |
/*!
|
|
3451 |
\property Q3ListBox::variableHeight
|
|
3452 |
\brief whether this list box has variable-height rows
|
|
3453 |
|
|
3454 |
When the list box has variable-height rows (the default), each row
|
|
3455 |
is as high as the highest item in that row. When it has same-sized
|
|
3456 |
rows, all rows are as high as the highest item in the list box.
|
|
3457 |
|
|
3458 |
\sa variableWidth
|
|
3459 |
*/
|
|
3460 |
|
|
3461 |
bool Q3ListBox::variableHeight() const
|
|
3462 |
{
|
|
3463 |
return d->variableHeight;
|
|
3464 |
}
|
|
3465 |
|
|
3466 |
|
|
3467 |
void Q3ListBox::setVariableHeight(bool enable)
|
|
3468 |
{
|
|
3469 |
if ((bool)d->variableHeight == enable)
|
|
3470 |
return;
|
|
3471 |
|
|
3472 |
d->variableHeight = enable;
|
|
3473 |
triggerUpdate(true);
|
|
3474 |
}
|
|
3475 |
|
|
3476 |
|
|
3477 |
/*!
|
|
3478 |
\property Q3ListBox::variableWidth
|
|
3479 |
\brief whether this list box has variable-width columns
|
|
3480 |
|
|
3481 |
When the list box has variable-width columns, each column is as
|
|
3482 |
wide as the widest item in that column. When it has same-sized
|
|
3483 |
columns (the default), all columns are as wide as the widest item
|
|
3484 |
in the list box.
|
|
3485 |
|
|
3486 |
\sa variableHeight
|
|
3487 |
*/
|
|
3488 |
|
|
3489 |
bool Q3ListBox::variableWidth() const
|
|
3490 |
{
|
|
3491 |
return d->variableWidth;
|
|
3492 |
}
|
|
3493 |
|
|
3494 |
|
|
3495 |
void Q3ListBox::setVariableWidth(bool enable)
|
|
3496 |
{
|
|
3497 |
if ((bool)d->variableWidth == enable)
|
|
3498 |
return;
|
|
3499 |
|
|
3500 |
d->variableWidth = enable;
|
|
3501 |
triggerUpdate(true);
|
|
3502 |
}
|
|
3503 |
|
|
3504 |
|
|
3505 |
/*!
|
|
3506 |
Repaints only what really needs to be repainted.
|
|
3507 |
*/
|
|
3508 |
void Q3ListBox::refreshSlot()
|
|
3509 |
{
|
|
3510 |
if (d->mustPaintAll ||
|
|
3511 |
d->layoutDirty) {
|
|
3512 |
d->mustPaintAll = false;
|
|
3513 |
bool currentItemVisible = itemVisible(currentItem());
|
|
3514 |
doLayout();
|
|
3515 |
if (hasFocus() &&
|
|
3516 |
currentItemVisible &&
|
|
3517 |
d->currentColumn >= 0 &&
|
|
3518 |
d->currentRow >= 0 &&
|
|
3519 |
(d->columnPos[d->currentColumn] < contentsX() ||
|
|
3520 |
d->columnPos[d->currentColumn+1]>contentsX()+visibleWidth() ||
|
|
3521 |
d->rowPos[d->currentRow] < contentsY() ||
|
|
3522 |
d->rowPos[d->currentRow+1] > contentsY()+visibleHeight()))
|
|
3523 |
ensureCurrentVisible();
|
|
3524 |
viewport()->repaint();
|
|
3525 |
return;
|
|
3526 |
}
|
|
3527 |
|
|
3528 |
QRegion r;
|
|
3529 |
int x = contentsX();
|
|
3530 |
int y = contentsY();
|
|
3531 |
int col = columnAt(x);
|
|
3532 |
int row = rowAt(y);
|
|
3533 |
int top = row;
|
|
3534 |
while(col < (int)d->columnPos.size()-1 && d->columnPos[col+1] < x)
|
|
3535 |
col++;
|
|
3536 |
while(top < (int)d->rowPos.size()-1 && d->rowPos[top+1] < y)
|
|
3537 |
top++;
|
|
3538 |
Q3ListBoxItem * i = item(col * numRows() + row);
|
|
3539 |
|
|
3540 |
while (i && (int)col < numColumns() &&
|
|
3541 |
d->columnPos[col] < x + visibleWidth() ) {
|
|
3542 |
int cw = d->columnPos[col+1] - d->columnPos[col];
|
|
3543 |
while (i && row < numRows() && d->rowPos[row] <
|
|
3544 |
y + visibleHeight()) {
|
|
3545 |
if (i->dirty)
|
|
3546 |
r = r.united(QRect(d->columnPos[col] - x, d->rowPos[row] - y,
|
|
3547 |
cw, d->rowPos[row+1] - d->rowPos[row]));
|
|
3548 |
row++;
|
|
3549 |
i = i->n;
|
|
3550 |
}
|
|
3551 |
col++;
|
|
3552 |
if (numColumns() > 1) {
|
|
3553 |
row = top;
|
|
3554 |
i = item(col * numRows() + row);
|
|
3555 |
}
|
|
3556 |
}
|
|
3557 |
|
|
3558 |
if (r.isEmpty())
|
|
3559 |
viewport()->repaint();
|
|
3560 |
else
|
|
3561 |
viewport()->repaint(r);
|
|
3562 |
}
|
|
3563 |
|
|
3564 |
|
|
3565 |
/*! \reimp */
|
|
3566 |
|
|
3567 |
void Q3ListBox::viewportPaintEvent(QPaintEvent * e)
|
|
3568 |
{
|
|
3569 |
doLayout();
|
|
3570 |
QWidget* vp = viewport();
|
|
3571 |
QPainter p(vp);
|
|
3572 |
QRegion r = e->region();
|
|
3573 |
|
|
3574 |
#if 0
|
|
3575 |
{
|
|
3576 |
// this stuff has been useful enough times that from now I'm
|
|
3577 |
// leaving it in the source.
|
|
3578 |
uint i = 0;
|
|
3579 |
qDebug("%s/%s: %i rects", className(), name(), r.rects().size());
|
|
3580 |
while(i < r.rects().size()) {
|
|
3581 |
qDebug("rect %d: %d, %d, %d, %d", i,
|
|
3582 |
r.rects()[i].left(), r.rects()[i].top(),
|
|
3583 |
r.rects()[i].width(), r.rects()[i].height());
|
|
3584 |
i++;
|
|
3585 |
}
|
|
3586 |
qDebug("");
|
|
3587 |
}
|
|
3588 |
#endif
|
|
3589 |
|
|
3590 |
int x = contentsX();
|
|
3591 |
int y = contentsY();
|
|
3592 |
int w = vp->width();
|
|
3593 |
int h = vp->height();
|
|
3594 |
|
|
3595 |
int col = columnAt(x);
|
|
3596 |
int top = rowAt(y);
|
|
3597 |
int row = top;
|
|
3598 |
|
|
3599 |
Q3ListBoxItem * i = item(col*numRows() + row);
|
|
3600 |
|
|
3601 |
const QPalette &pal = palette();
|
|
3602 |
p.setPen(pal.text().color());
|
|
3603 |
p.setBackground(palette().brush(backgroundRole()).color());
|
|
3604 |
while (i && (int)col < numColumns() && d->columnPos[col] < x + w) {
|
|
3605 |
int cw = d->columnPos[col+1] - d->columnPos[col];
|
|
3606 |
while (i && (int)row < numRows() && d->rowPos[row] < y + h) {
|
|
3607 |
int ch = d->rowPos[row+1] - d->rowPos[row];
|
|
3608 |
QRect itemRect(d->columnPos[col]-x, d->rowPos[row]-y, cw, ch);
|
|
3609 |
QRegion tempRegion(itemRect);
|
|
3610 |
QRegion itemPaintRegion(tempRegion.intersected(r ));
|
|
3611 |
if (!itemPaintRegion.isEmpty()) {
|
|
3612 |
p.save();
|
|
3613 |
p.setClipRegion(itemPaintRegion);
|
|
3614 |
p.translate(d->columnPos[col]-x, d->rowPos[row]-y);
|
|
3615 |
paintCell(&p, row, col);
|
|
3616 |
p.restore();
|
|
3617 |
r = r.subtracted(itemPaintRegion);
|
|
3618 |
}
|
|
3619 |
row++;
|
|
3620 |
if (i->dirty) {
|
|
3621 |
// reset dirty flag only if the entire item was painted
|
|
3622 |
if (itemPaintRegion == QRegion(itemRect))
|
|
3623 |
i->dirty = false;
|
|
3624 |
}
|
|
3625 |
i = i->n;
|
|
3626 |
}
|
|
3627 |
col++;
|
|
3628 |
if (numColumns() > 1) {
|
|
3629 |
row = top;
|
|
3630 |
i = item(col * numRows() + row);
|
|
3631 |
}
|
|
3632 |
}
|
|
3633 |
|
|
3634 |
if (r.isEmpty())
|
|
3635 |
return;
|
|
3636 |
p.setClipRegion(r);
|
|
3637 |
p.fillRect(0, 0, w, h, viewport()->palette().brush(viewport()->backgroundRole()));
|
|
3638 |
|
|
3639 |
if(d->rubber && d->rubber->width() && d->rubber->height()) {
|
|
3640 |
p.save();
|
|
3641 |
p.setClipping(false);
|
|
3642 |
// p.setRasterOp(NotROP); // ### fix - use qrubberband instead
|
|
3643 |
QStyleOptionRubberBand opt;
|
|
3644 |
opt.rect = d->rubber->normalized();
|
|
3645 |
opt.palette = palette();
|
|
3646 |
opt.shape = QRubberBand::Rectangle;
|
|
3647 |
opt.opaque = false;
|
|
3648 |
style()->drawControl(QStyle::CE_RubberBand, &opt, &p, this);
|
|
3649 |
p.restore();
|
|
3650 |
}
|
|
3651 |
}
|
|
3652 |
|
|
3653 |
|
|
3654 |
/*!
|
|
3655 |
Returns the height in pixels of the item with index \a index. \a
|
|
3656 |
index defaults to 0.
|
|
3657 |
|
|
3658 |
If \a index is too large, this function returns 0.
|
|
3659 |
*/
|
|
3660 |
|
|
3661 |
int Q3ListBox::itemHeight(int index) const
|
|
3662 |
{
|
|
3663 |
if (index >= (int)count() || index < 0)
|
|
3664 |
return 0;
|
|
3665 |
int r = index % numRows();
|
|
3666 |
return d->rowPos[r+1] - d->rowPos[r];
|
|
3667 |
}
|
|
3668 |
|
|
3669 |
|
|
3670 |
/*!
|
|
3671 |
Returns the index of the column at \a x, which is in the listbox's
|
|
3672 |
coordinates, not in on-screen coordinates.
|
|
3673 |
|
|
3674 |
If there is no column that spans \a x, columnAt() returns -1.
|
|
3675 |
*/
|
|
3676 |
|
|
3677 |
int Q3ListBox::columnAt(int x) const
|
|
3678 |
{
|
|
3679 |
if (x < 0)
|
|
3680 |
return -1;
|
|
3681 |
if (!d->columnPos.size())
|
|
3682 |
return -1;
|
|
3683 |
if (x >= d->columnPos[(int)d->columnPos.size()-1])
|
|
3684 |
return numColumns() - 1;
|
|
3685 |
|
|
3686 |
int col = 0;
|
|
3687 |
while(col < (int)d->columnPos.size()-1 && d->columnPos[col+1] < x)
|
|
3688 |
col++;
|
|
3689 |
return col;
|
|
3690 |
}
|
|
3691 |
|
|
3692 |
|
|
3693 |
/*!
|
|
3694 |
Returns the index of the row at \a y, which is in the listbox's
|
|
3695 |
coordinates, not in on-screen coordinates.
|
|
3696 |
|
|
3697 |
If there is no row that spans \a y, rowAt() returns -1.
|
|
3698 |
*/
|
|
3699 |
|
|
3700 |
int Q3ListBox::rowAt(int y) const
|
|
3701 |
{
|
|
3702 |
if (y < 0)
|
|
3703 |
return -1;
|
|
3704 |
|
|
3705 |
// find the top item, use bsearch for speed
|
|
3706 |
int l = 0;
|
|
3707 |
int r = d->rowPos.size() - 2;
|
|
3708 |
if (r < 0)
|
|
3709 |
return -1;
|
|
3710 |
if (l <= d->rowPosCache && d->rowPosCache <= r) {
|
|
3711 |
if (d->rowPos[qMax(l, d->rowPosCache - 10)] <= y
|
|
3712 |
&& y <= d->rowPos[qMin(r, d->rowPosCache + 10)]) {
|
|
3713 |
l = qMax(l, d->rowPosCache - 10);
|
|
3714 |
r = qMin(r, d->rowPosCache + 10);
|
|
3715 |
}
|
|
3716 |
}
|
|
3717 |
int i = ((l+r+1) / 2);
|
|
3718 |
while (r - l) {
|
|
3719 |
if (d->rowPos[i] > y)
|
|
3720 |
r = i -1;
|
|
3721 |
else
|
|
3722 |
l = i;
|
|
3723 |
i = ((l+r+1) / 2);
|
|
3724 |
}
|
|
3725 |
d->rowPosCache = i;
|
|
3726 |
if (d->rowPos[i] <= y && y <= d->rowPos[i+1] )
|
|
3727 |
return i;
|
|
3728 |
|
|
3729 |
return d->count - 1;
|
|
3730 |
}
|
|
3731 |
|
|
3732 |
|
|
3733 |
/*!
|
|
3734 |
Returns the rectangle on the screen that \a item occupies in
|
|
3735 |
viewport()'s coordinates, or an invalid rectangle if \a item is 0
|
|
3736 |
or is not currently visible.
|
|
3737 |
*/
|
|
3738 |
|
|
3739 |
QRect Q3ListBox::itemRect(Q3ListBoxItem *item) const
|
|
3740 |
{
|
|
3741 |
if (d->resizeTimer->isActive())
|
|
3742 |
return QRect(0, 0, -1, -1);
|
|
3743 |
if (!item)
|
|
3744 |
return QRect(0, 0, -1, -1);
|
|
3745 |
|
|
3746 |
int i = index(item);
|
|
3747 |
if (i == -1)
|
|
3748 |
return QRect(0, 0, -1, -1);
|
|
3749 |
|
|
3750 |
int col = i / numRows();
|
|
3751 |
int row = i % numRows();
|
|
3752 |
|
|
3753 |
int x = d->columnPos[col] - contentsX();
|
|
3754 |
int y = d->rowPos[row] - contentsY();
|
|
3755 |
|
|
3756 |
QRect r(x, y, d->columnPos[col + 1] - d->columnPos[col],
|
|
3757 |
d->rowPos[row + 1] - d->rowPos[row]);
|
|
3758 |
if (r.intersects(QRect(0, 0, visibleWidth(), visibleHeight())))
|
|
3759 |
return r;
|
|
3760 |
return QRect(0, 0, -1, -1);
|
|
3761 |
}
|
|
3762 |
|
|
3763 |
|
|
3764 |
/*!
|
|
3765 |
Using this method is quite inefficient. We suggest to use insertItem()
|
|
3766 |
for inserting and sort() afterwards.
|
|
3767 |
|
|
3768 |
Inserts \a lbi at its sorted position in the list box and returns the
|
|
3769 |
position.
|
|
3770 |
|
|
3771 |
All items must be inserted with inSort() to maintain the sorting
|
|
3772 |
order. inSort() treats any pixmap (or user-defined type) as
|
|
3773 |
lexicographically less than any string.
|
|
3774 |
|
|
3775 |
\sa insertItem(), sort()
|
|
3776 |
*/
|
|
3777 |
int Q3ListBox::inSort(const Q3ListBoxItem * lbi)
|
|
3778 |
{
|
|
3779 |
if (!lbi)
|
|
3780 |
return -1;
|
|
3781 |
|
|
3782 |
Q3ListBoxItem * i = d->head;
|
|
3783 |
int c = 0;
|
|
3784 |
|
|
3785 |
while(i && i->text() < lbi->text()) {
|
|
3786 |
i = i->n;
|
|
3787 |
c++;
|
|
3788 |
}
|
|
3789 |
insertItem(lbi, c);
|
|
3790 |
return c;
|
|
3791 |
}
|
|
3792 |
|
|
3793 |
/*!
|
|
3794 |
\overload
|
|
3795 |
Using this method is quite inefficient. We suggest to use insertItem()
|
|
3796 |
for inserting and sort() afterwards.
|
|
3797 |
|
|
3798 |
Inserts a new item of \a text at its sorted position in the list box and
|
|
3799 |
returns the position.
|
|
3800 |
|
|
3801 |
All items must be inserted with inSort() to maintain the sorting
|
|
3802 |
order. inSort() treats any pixmap (or user-defined type) as
|
|
3803 |
lexicographically less than any string.
|
|
3804 |
|
|
3805 |
\sa insertItem(), sort()
|
|
3806 |
*/
|
|
3807 |
int Q3ListBox::inSort(const QString& text)
|
|
3808 |
{
|
|
3809 |
Q3ListBoxItem *lbi = new Q3ListBoxText(text);
|
|
3810 |
|
|
3811 |
Q3ListBoxItem * i = d->head;
|
|
3812 |
int c = 0;
|
|
3813 |
|
|
3814 |
while(i && i->text() < lbi->text()) {
|
|
3815 |
i = i->n;
|
|
3816 |
c++;
|
|
3817 |
}
|
|
3818 |
insertItem(lbi, c);
|
|
3819 |
return c;
|
|
3820 |
}
|
|
3821 |
|
|
3822 |
|
|
3823 |
/*! \reimp */
|
|
3824 |
|
|
3825 |
void Q3ListBox::resizeEvent(QResizeEvent *e)
|
|
3826 |
{
|
|
3827 |
d->layoutDirty = (d->layoutDirty ||
|
|
3828 |
rowMode() == FitToHeight ||
|
|
3829 |
columnMode() == FitToWidth);
|
|
3830 |
|
|
3831 |
if (!d->layoutDirty && columnMode() == FixedNumber &&
|
|
3832 |
d->numColumns == 1) {
|
|
3833 |
int w = d->columnPosOne;
|
|
3834 |
QSize s(viewportSize(w, contentsHeight()));
|
|
3835 |
w = qMax(w, s.width());
|
|
3836 |
d->columnPos[1] = qMax(w, d->columnPosOne);
|
|
3837 |
resizeContents(d->columnPos[1], contentsHeight());
|
|
3838 |
}
|
|
3839 |
|
|
3840 |
if (d->resizeTimer->isActive())
|
|
3841 |
d->resizeTimer->stop();
|
|
3842 |
if (d->rowMode == FixedNumber && d->columnMode == FixedNumber) {
|
|
3843 |
bool currentItemVisible = itemVisible(currentItem());
|
|
3844 |
doLayout();
|
|
3845 |
Q3ScrollView::resizeEvent(e);
|
|
3846 |
if (currentItemVisible)
|
|
3847 |
ensureCurrentVisible();
|
|
3848 |
if (d->current)
|
|
3849 |
viewport()->repaint(itemRect(d->current));
|
|
3850 |
} else if ((d->columnMode == FitToWidth || d->rowMode == FitToHeight) && !(isVisible())) {
|
|
3851 |
Q3ScrollView::resizeEvent(e);
|
|
3852 |
} else if (d->layoutDirty) {
|
|
3853 |
d->resizeTimer->start(100, true);
|
|
3854 |
resizeContents(contentsWidth() - (e->oldSize().width() - e->size().width()),
|
|
3855 |
contentsHeight() - (e->oldSize().height() - e->size().height()));
|
|
3856 |
Q3ScrollView::resizeEvent(e);
|
|
3857 |
} else {
|
|
3858 |
Q3ScrollView::resizeEvent(e);
|
|
3859 |
}
|
|
3860 |
}
|
|
3861 |
|
|
3862 |
/*!
|
|
3863 |
\internal
|
|
3864 |
*/
|
|
3865 |
|
|
3866 |
void Q3ListBox::adjustItems()
|
|
3867 |
{
|
|
3868 |
triggerUpdate(true);
|
|
3869 |
ensureCurrentVisible();
|
|
3870 |
}
|
|
3871 |
|
|
3872 |
|
|
3873 |
/*!
|
|
3874 |
Provided for compatibility with the old Q3ListBox. We recommend
|
|
3875 |
using Q3ListBoxItem::paint() instead.
|
|
3876 |
|
|
3877 |
Repaints the cell at \a row, \a col using painter \a p.
|
|
3878 |
*/
|
|
3879 |
|
|
3880 |
void Q3ListBox::paintCell(QPainter * p, int row, int col)
|
|
3881 |
{
|
|
3882 |
bool drawActiveSelection = hasFocus() || d->inMenuMode ||
|
|
3883 |
!style()->styleHint(QStyle::SH_ItemView_ChangeHighlightOnFocus, 0, this);
|
|
3884 |
QPalette pal = palette();
|
|
3885 |
if(!drawActiveSelection)
|
|
3886 |
pal.setCurrentColorGroup(QPalette::Inactive);
|
|
3887 |
|
|
3888 |
int cw = d->columnPos[col+1] - d->columnPos[col];
|
|
3889 |
int ch = d->rowPos[row+1] - d->rowPos[row];
|
|
3890 |
Q3ListBoxItem * i = item(col*numRows()+row);
|
|
3891 |
p->save();
|
|
3892 |
if (i->s) {
|
|
3893 |
if (i->custom_highlight) {
|
|
3894 |
p->fillRect(0, 0, cw, ch, pal.brush(viewport()->foregroundRole()));
|
|
3895 |
p->setPen(pal.highlightedText().color());
|
|
3896 |
p->setBackground(pal.highlight());
|
|
3897 |
} else if (numColumns() == 1) {
|
|
3898 |
p->fillRect(0, 0, cw, ch, pal.brush(QPalette::Highlight));
|
|
3899 |
p->setPen(pal.highlightedText().color());
|
|
3900 |
p->setBackground(pal.highlight());
|
|
3901 |
} else {
|
|
3902 |
int iw = i->width(this);
|
|
3903 |
p->fillRect(0, 0, iw, ch, pal.brush(QPalette::Highlight));
|
|
3904 |
p->fillRect(iw, 0, cw - iw + 1, ch, viewport()->palette().brush(viewport()->backgroundRole()));
|
|
3905 |
p->setPen(pal.highlightedText().color());
|
|
3906 |
p->setBackground(pal.highlight());
|
|
3907 |
}
|
|
3908 |
} else {
|
|
3909 |
p->fillRect(0, 0, cw, ch, viewport()->palette().brush(viewport()->backgroundRole()));
|
|
3910 |
}
|
|
3911 |
|
|
3912 |
i->paint(p);
|
|
3913 |
|
|
3914 |
if (d->current == i && hasFocus() && !i->custom_highlight) {
|
|
3915 |
if (numColumns() > 1)
|
|
3916 |
cw = i->width(this);
|
|
3917 |
QStyleOptionFocusRect opt;
|
|
3918 |
opt.rect.setRect(0, 0, cw, ch);
|
|
3919 |
opt.palette = pal;
|
|
3920 |
opt.state = QStyle::State_FocusAtBorder;
|
|
3921 |
if (i->isSelected())
|
|
3922 |
opt.backgroundColor = pal.highlight().color();
|
|
3923 |
else
|
|
3924 |
opt.backgroundColor = pal.base().color();
|
|
3925 |
style()->drawPrimitive(QStyle::PE_FrameFocusRect, &opt, p, this);
|
|
3926 |
}
|
|
3927 |
|
|
3928 |
p->restore();
|
|
3929 |
}
|
|
3930 |
|
|
3931 |
/*!
|
|
3932 |
Returns the width of the widest item in the list box.
|
|
3933 |
*/
|
|
3934 |
|
|
3935 |
long Q3ListBox::maxItemWidth() const
|
|
3936 |
{
|
|
3937 |
if (d->layoutDirty)
|
|
3938 |
doLayout();
|
|
3939 |
long m = 0;
|
|
3940 |
int i = d->columnPos.size();
|
|
3941 |
while(i--)
|
|
3942 |
if (m < d->columnPos[i])
|
|
3943 |
m = d->columnPos[i];
|
|
3944 |
return m;
|
|
3945 |
}
|
|
3946 |
|
|
3947 |
|
|
3948 |
/*! \reimp */
|
|
3949 |
|
|
3950 |
void Q3ListBox::showEvent(QShowEvent *)
|
|
3951 |
{
|
|
3952 |
d->ignoreMoves = false;
|
|
3953 |
d->mousePressRow = -1;
|
|
3954 |
d->mousePressColumn = -1;
|
|
3955 |
d->mustPaintAll = false;
|
|
3956 |
ensureCurrentVisible();
|
|
3957 |
}
|
|
3958 |
|
|
3959 |
/*!
|
|
3960 |
\fn bool Q3ListBoxItem::isSelected() const
|
|
3961 |
|
|
3962 |
Returns true if the item is selected; otherwise returns false.
|
|
3963 |
|
|
3964 |
\sa Q3ListBox::isSelected(), isCurrent()
|
|
3965 |
*/
|
|
3966 |
|
|
3967 |
/*!
|
|
3968 |
Returns true if the item is the current item; otherwise returns
|
|
3969 |
false.
|
|
3970 |
|
|
3971 |
\sa Q3ListBox::currentItem(), Q3ListBox::item(), isSelected()
|
|
3972 |
*/
|
|
3973 |
bool Q3ListBoxItem::isCurrent() const
|
|
3974 |
{
|
|
3975 |
return listBox() && listBox()->hasFocus() &&
|
|
3976 |
listBox()->item(listBox()->currentItem()) == this;
|
|
3977 |
}
|
|
3978 |
|
|
3979 |
/*!
|
|
3980 |
\fn void Q3ListBox::centerCurrentItem()
|
|
3981 |
|
|
3982 |
If there is a current item, the list box is scrolled so that this
|
|
3983 |
item is displayed centered.
|
|
3984 |
|
|
3985 |
\sa Q3ListBox::ensureCurrentVisible()
|
|
3986 |
*/
|
|
3987 |
|
|
3988 |
/*!
|
|
3989 |
Returns a pointer to the list box containing this item.
|
|
3990 |
*/
|
|
3991 |
|
|
3992 |
Q3ListBox * Q3ListBoxItem::listBox() const
|
|
3993 |
{
|
|
3994 |
return lbox;
|
|
3995 |
}
|
|
3996 |
|
|
3997 |
|
|
3998 |
/*!
|
|
3999 |
Removes \a item from the list box and causes an update of the
|
|
4000 |
screen display. The item is not deleted. You should normally not
|
|
4001 |
need to call this function because Q3ListBoxItem::~Q3ListBoxItem()
|
|
4002 |
calls it. The normal way to delete an item is with \c delete.
|
|
4003 |
|
|
4004 |
\sa Q3ListBox::insertItem()
|
|
4005 |
*/
|
|
4006 |
void Q3ListBox::takeItem(const Q3ListBoxItem * item)
|
|
4007 |
{
|
|
4008 |
if (!item || d->clearing)
|
|
4009 |
return;
|
|
4010 |
d->cache = 0;
|
|
4011 |
d->count--;
|
|
4012 |
if (item == d->last)
|
|
4013 |
d->last = d->last->p;
|
|
4014 |
if (item->p && item->p->n == item)
|
|
4015 |
item->p->n = item->n;
|
|
4016 |
if (item->n && item->n->p == item)
|
|
4017 |
item->n->p = item->p;
|
|
4018 |
if (d->head == item) {
|
|
4019 |
d->head = item->n;
|
|
4020 |
d->currentColumn = d->currentRow = -1;
|
|
4021 |
}
|
|
4022 |
|
|
4023 |
if (d->current == item) {
|
|
4024 |
d->current = item->n ? item->n : item->p;
|
|
4025 |
Q3ListBoxItem *i = d->current;
|
|
4026 |
QString tmp;
|
|
4027 |
if (i)
|
|
4028 |
tmp = i->text();
|
|
4029 |
int tmp2 = index(i);
|
|
4030 |
emit highlighted(i);
|
|
4031 |
if (!tmp.isNull())
|
|
4032 |
emit highlighted(tmp);
|
|
4033 |
emit highlighted(tmp2);
|
|
4034 |
emit currentChanged(i);
|
|
4035 |
}
|
|
4036 |
if (d->tmpCurrent == item)
|
|
4037 |
d->tmpCurrent = d->current;
|
|
4038 |
if (d->selectAnchor == item)
|
|
4039 |
d->selectAnchor = d->current;
|
|
4040 |
|
|
4041 |
if (item->s)
|
|
4042 |
emit selectionChanged();
|
|
4043 |
((Q3ListBoxItem *)item)->lbox = 0;
|
|
4044 |
triggerUpdate(true);
|
|
4045 |
}
|
|
4046 |
|
|
4047 |
/*!
|
|
4048 |
\internal
|
|
4049 |
Finds the next item after start beginning with \a text.
|
|
4050 |
*/
|
|
4051 |
|
|
4052 |
int Q3ListBoxPrivate::findItemByName(int start, const QString &text)
|
|
4053 |
{
|
|
4054 |
if (start < 0 || (uint)start >= listBox->count())
|
|
4055 |
start = 0;
|
|
4056 |
QString match = text.toLower();
|
|
4057 |
if (match.length() < 1)
|
|
4058 |
return start;
|
|
4059 |
QString curText;
|
|
4060 |
int item = start;
|
|
4061 |
do {
|
|
4062 |
curText = listBox->text(item).toLower();
|
|
4063 |
if (curText.startsWith(match))
|
|
4064 |
return item;
|
|
4065 |
item++;
|
|
4066 |
if ((uint)item == listBox->count())
|
|
4067 |
item = 0;
|
|
4068 |
} while (item != start);
|
|
4069 |
return -1;
|
|
4070 |
}
|
|
4071 |
|
|
4072 |
/*!
|
|
4073 |
\internal
|
|
4074 |
*/
|
|
4075 |
|
|
4076 |
void Q3ListBox::clearInputString()
|
|
4077 |
{
|
|
4078 |
d->currInputString.clear();
|
|
4079 |
}
|
|
4080 |
|
|
4081 |
/*!
|
|
4082 |
Finds the first list box item that has the text \a text and
|
|
4083 |
returns it, or returns 0 of no such item could be found. If \c
|
|
4084 |
ComparisonFlags are specified in \a compare then these flags
|
|
4085 |
are used, otherwise the default is a case-insensitive, "begins
|
|
4086 |
with" search.
|
|
4087 |
*/
|
|
4088 |
|
|
4089 |
Q3ListBoxItem *Q3ListBox::findItem(const QString &text, ComparisonFlags compare) const
|
|
4090 |
{
|
|
4091 |
if (text.isEmpty())
|
|
4092 |
return 0;
|
|
4093 |
|
|
4094 |
if (compare == CaseSensitive || compare == 0)
|
|
4095 |
compare |= ExactMatch;
|
|
4096 |
|
|
4097 |
QString itmtxt;
|
|
4098 |
QString comtxt = text;
|
|
4099 |
if (!(compare & CaseSensitive))
|
|
4100 |
comtxt = text.toLower();
|
|
4101 |
|
|
4102 |
Q3ListBoxItem *item;
|
|
4103 |
if (d->current)
|
|
4104 |
item = d->current;
|
|
4105 |
else
|
|
4106 |
item = d->head;
|
|
4107 |
|
|
4108 |
Q3ListBoxItem *beginsWithItem = 0;
|
|
4109 |
Q3ListBoxItem *endsWithItem = 0;
|
|
4110 |
Q3ListBoxItem *containsItem = 0;
|
|
4111 |
|
|
4112 |
if (item) {
|
|
4113 |
for (; item; item = item->n) {
|
|
4114 |
if (!(compare & CaseSensitive))
|
|
4115 |
itmtxt = item->text().toLower();
|
|
4116 |
else
|
|
4117 |
itmtxt = item->text();
|
|
4118 |
|
|
4119 |
if ((compare & ExactMatch)==ExactMatch && itmtxt == comtxt)
|
|
4120 |
return item;
|
|
4121 |
if (compare & BeginsWith && !beginsWithItem && itmtxt.startsWith(comtxt))
|
|
4122 |
beginsWithItem = containsItem = item;
|
|
4123 |
if (compare & EndsWith && !endsWithItem && itmtxt.endsWith(comtxt))
|
|
4124 |
endsWithItem = containsItem = item;
|
|
4125 |
if ((compare & ExactMatch)==0 && !containsItem && itmtxt.contains(comtxt))
|
|
4126 |
containsItem = item;
|
|
4127 |
}
|
|
4128 |
|
|
4129 |
if (d->current && d->head) {
|
|
4130 |
item = d->head;
|
|
4131 |
for (; item && item != d->current; item = item->n) {
|
|
4132 |
if (!(compare & CaseSensitive))
|
|
4133 |
itmtxt = item->text().toLower();
|
|
4134 |
else
|
|
4135 |
itmtxt = item->text();
|
|
4136 |
|
|
4137 |
if ((compare & ExactMatch)==ExactMatch && itmtxt == comtxt)
|
|
4138 |
return item;
|
|
4139 |
if (compare & BeginsWith && !beginsWithItem && itmtxt.startsWith(comtxt))
|
|
4140 |
beginsWithItem = containsItem = item;
|
|
4141 |
if (compare & EndsWith && !endsWithItem && itmtxt.endsWith(comtxt))
|
|
4142 |
endsWithItem = containsItem = item;
|
|
4143 |
if ((compare & ExactMatch)==0 && !containsItem && itmtxt.contains(comtxt))
|
|
4144 |
containsItem = item;
|
|
4145 |
}
|
|
4146 |
}
|
|
4147 |
}
|
|
4148 |
|
|
4149 |
// Obey the priorities
|
|
4150 |
if (beginsWithItem)
|
|
4151 |
return beginsWithItem;
|
|
4152 |
else if (endsWithItem)
|
|
4153 |
return endsWithItem;
|
|
4154 |
else if (containsItem)
|
|
4155 |
return containsItem;
|
|
4156 |
return 0;
|
|
4157 |
}
|
|
4158 |
|
|
4159 |
/*!
|
|
4160 |
\internal
|
|
4161 |
*/
|
|
4162 |
|
|
4163 |
void Q3ListBox::drawRubber()
|
|
4164 |
{
|
|
4165 |
if (!d->rubber)
|
|
4166 |
return;
|
|
4167 |
if (!d->rubber->width() && !d->rubber->height())
|
|
4168 |
return;
|
|
4169 |
update();
|
|
4170 |
}
|
|
4171 |
|
|
4172 |
/*!
|
|
4173 |
\internal
|
|
4174 |
*/
|
|
4175 |
|
|
4176 |
void Q3ListBox::doRubberSelection(const QRect &old, const QRect &rubber)
|
|
4177 |
{
|
|
4178 |
Q3ListBoxItem *i = d->head;
|
|
4179 |
QRect ir, pr;
|
|
4180 |
bool changed = false;
|
|
4181 |
for (; i; i = i->n) {
|
|
4182 |
ir = itemRect(i);
|
|
4183 |
if (ir == QRect(0, 0, -1, -1))
|
|
4184 |
continue;
|
|
4185 |
if (i->isSelected() && !ir.intersects(rubber) && ir.intersects(old)) {
|
|
4186 |
i->s = false;
|
|
4187 |
pr = pr.united(ir);
|
|
4188 |
changed = true;
|
|
4189 |
} else if (!i->isSelected() && ir.intersects(rubber)) {
|
|
4190 |
if (i->isSelectable()) {
|
|
4191 |
i->s = true;
|
|
4192 |
pr = pr.united(ir);
|
|
4193 |
changed = true;
|
|
4194 |
}
|
|
4195 |
}
|
|
4196 |
}
|
|
4197 |
if (changed) {
|
|
4198 |
emit selectionChanged();
|
|
4199 |
#ifndef QT_NO_ACCESSIBILITY
|
|
4200 |
QAccessible::updateAccessibility(viewport(), 0, QAccessible::Selection);
|
|
4201 |
#endif
|
|
4202 |
}
|
|
4203 |
viewport()->repaint(pr);
|
|
4204 |
}
|
|
4205 |
|
|
4206 |
|
|
4207 |
/*!
|
|
4208 |
Returns true if the user is selecting items using a rubber band
|
|
4209 |
rectangle; otherwise returns false.
|
|
4210 |
*/
|
|
4211 |
|
|
4212 |
bool Q3ListBox::isRubberSelecting() const
|
|
4213 |
{
|
|
4214 |
return d->rubber != 0;
|
|
4215 |
}
|
|
4216 |
|
|
4217 |
|
|
4218 |
/*!
|
|
4219 |
Returns the item that comes after this in the list box. If this is
|
|
4220 |
the last item, 0 is returned.
|
|
4221 |
|
|
4222 |
\sa prev()
|
|
4223 |
*/
|
|
4224 |
|
|
4225 |
Q3ListBoxItem *Q3ListBoxItem::next() const
|
|
4226 |
{
|
|
4227 |
return n;
|
|
4228 |
}
|
|
4229 |
|
|
4230 |
/*!
|
|
4231 |
Returns the item which comes before this in the list box. If this
|
|
4232 |
is the first item, 0 is returned.
|
|
4233 |
|
|
4234 |
\sa next()
|
|
4235 |
*/
|
|
4236 |
|
|
4237 |
Q3ListBoxItem *Q3ListBoxItem::prev() const
|
|
4238 |
{
|
|
4239 |
return p;
|
|
4240 |
}
|
|
4241 |
|
|
4242 |
/*!
|
|
4243 |
Returns the first item in this list box. If the list box is empty,
|
|
4244 |
returns 0.
|
|
4245 |
*/
|
|
4246 |
|
|
4247 |
Q3ListBoxItem *Q3ListBox::firstItem() const
|
|
4248 |
{
|
|
4249 |
return d->head;
|
|
4250 |
}
|
|
4251 |
|
|
4252 |
#if defined(Q_C_CALLBACKS)
|
|
4253 |
extern "C" {
|
|
4254 |
#endif
|
|
4255 |
|
|
4256 |
#ifdef Q_OS_WINCE
|
|
4257 |
static int _cdecl cmpListBoxItems(const void *n1, const void *n2)
|
|
4258 |
#else
|
|
4259 |
static int cmpListBoxItems(const void *n1, const void *n2)
|
|
4260 |
#endif
|
|
4261 |
{
|
|
4262 |
if (!n1 || !n2)
|
|
4263 |
return 0;
|
|
4264 |
|
|
4265 |
Q3ListBoxPrivate::SortableItem *i1 = (Q3ListBoxPrivate::SortableItem *)n1;
|
|
4266 |
Q3ListBoxPrivate::SortableItem *i2 = (Q3ListBoxPrivate::SortableItem *)n2;
|
|
4267 |
|
|
4268 |
return i1->item->text().localeAwareCompare(i2->item->text());
|
|
4269 |
}
|
|
4270 |
|
|
4271 |
#if defined(Q_C_CALLBACKS)
|
|
4272 |
}
|
|
4273 |
#endif
|
|
4274 |
|
|
4275 |
/*!
|
|
4276 |
If \a ascending is true sorts the items in ascending order;
|
|
4277 |
otherwise sorts in descending order.
|
|
4278 |
|
|
4279 |
To compare the items, the text (Q3ListBoxItem::text()) of the items
|
|
4280 |
is used.
|
|
4281 |
*/
|
|
4282 |
|
|
4283 |
void Q3ListBox::sort(bool ascending)
|
|
4284 |
{
|
|
4285 |
if (count() == 0)
|
|
4286 |
return;
|
|
4287 |
|
|
4288 |
d->cache = 0;
|
|
4289 |
|
|
4290 |
Q3ListBoxPrivate::SortableItem *items = new Q3ListBoxPrivate::SortableItem[count()];
|
|
4291 |
|
|
4292 |
Q3ListBoxItem *item = d->head;
|
|
4293 |
int i = 0;
|
|
4294 |
for (; item; item = item->n)
|
|
4295 |
items[i++].item = item;
|
|
4296 |
|
|
4297 |
qsort(items, count(), sizeof(Q3ListBoxPrivate::SortableItem), cmpListBoxItems);
|
|
4298 |
|
|
4299 |
Q3ListBoxItem *prev = 0;
|
|
4300 |
item = 0;
|
|
4301 |
if (ascending) {
|
|
4302 |
for (i = 0; i < (int)count(); ++i) {
|
|
4303 |
item = items[i].item;
|
|
4304 |
if (item) {
|
|
4305 |
item->p = prev;
|
|
4306 |
item->dirty = true;
|
|
4307 |
if (item->p)
|
|
4308 |
item->p->n = item;
|
|
4309 |
item->n = 0;
|
|
4310 |
}
|
|
4311 |
if (i == 0)
|
|
4312 |
d->head = item;
|
|
4313 |
prev = item;
|
|
4314 |
}
|
|
4315 |
} else {
|
|
4316 |
for (i = (int)count() - 1; i >= 0 ; --i) {
|
|
4317 |
item = items[i].item;
|
|
4318 |
if (item) {
|
|
4319 |
item->p = prev;
|
|
4320 |
item->dirty = true;
|
|
4321 |
if (item->p)
|
|
4322 |
item->p->n = item;
|
|
4323 |
item->n = 0;
|
|
4324 |
}
|
|
4325 |
if (i == (int)count() - 1)
|
|
4326 |
d->head = item;
|
|
4327 |
prev = item;
|
|
4328 |
}
|
|
4329 |
}
|
|
4330 |
d->last = item;
|
|
4331 |
|
|
4332 |
delete [] items;
|
|
4333 |
|
|
4334 |
// We have to update explicitly in case the current "vieport" overlaps the
|
|
4335 |
// new viewport we set (starting at (0,0)).
|
|
4336 |
bool haveToUpdate = contentsX() < visibleWidth() || contentsY() < visibleHeight();
|
|
4337 |
setContentsPos(0, 0);
|
|
4338 |
if (haveToUpdate)
|
|
4339 |
updateContents(0, 0, visibleWidth(), visibleHeight());
|
|
4340 |
}
|
|
4341 |
|
|
4342 |
void Q3ListBox::handleItemChange(Q3ListBoxItem *old, bool shift, bool control)
|
|
4343 |
{
|
|
4344 |
if (d->selectionMode == Single) {
|
|
4345 |
// nothing
|
|
4346 |
} else if (d->selectionMode == Extended) {
|
|
4347 |
if (shift) {
|
|
4348 |
selectRange(d->selectAnchor ? d->selectAnchor : old,
|
|
4349 |
d->current, false, true, (d->selectAnchor && !control) ? true : false);
|
|
4350 |
} else if (!control) {
|
|
4351 |
bool block = signalsBlocked();
|
|
4352 |
blockSignals(true);
|
|
4353 |
selectAll(false);
|
|
4354 |
blockSignals(block);
|
|
4355 |
setSelected(d->current, true);
|
|
4356 |
}
|
|
4357 |
} else if (d->selectionMode == Multi) {
|
|
4358 |
if (shift)
|
|
4359 |
selectRange(old, d->current, true, false);
|
|
4360 |
}
|
|
4361 |
}
|
|
4362 |
|
|
4363 |
void Q3ListBox::selectRange(Q3ListBoxItem *from, Q3ListBoxItem *to, bool invert, bool includeFirst, bool clearSel)
|
|
4364 |
{
|
|
4365 |
if (!from || !to)
|
|
4366 |
return;
|
|
4367 |
if (from == to && !includeFirst)
|
|
4368 |
return;
|
|
4369 |
Q3ListBoxItem *i = 0;
|
|
4370 |
int index =0;
|
|
4371 |
int f_idx = -1, t_idx = -1;
|
|
4372 |
for (i = d->head; i; i = i->n, index++) {
|
|
4373 |
if (i == from)
|
|
4374 |
f_idx = index;
|
|
4375 |
if (i == to)
|
|
4376 |
t_idx = index;
|
|
4377 |
if (f_idx != -1 && t_idx != -1)
|
|
4378 |
break;
|
|
4379 |
}
|
|
4380 |
if (f_idx > t_idx) {
|
|
4381 |
i = from;
|
|
4382 |
from = to;
|
|
4383 |
to = i;
|
|
4384 |
if (!includeFirst)
|
|
4385 |
to = to->prev();
|
|
4386 |
} else {
|
|
4387 |
if (!includeFirst)
|
|
4388 |
from = from->next();
|
|
4389 |
}
|
|
4390 |
|
|
4391 |
bool changed = false;
|
|
4392 |
if (clearSel) {
|
|
4393 |
for (i = d->head; i && i != from; i = i->n) {
|
|
4394 |
if (i->s) {
|
|
4395 |
i->s = false;
|
|
4396 |
changed = true;
|
|
4397 |
updateItem(i);
|
|
4398 |
}
|
|
4399 |
}
|
|
4400 |
for (i = to->n; i; i = i->n) {
|
|
4401 |
if (i->s) {
|
|
4402 |
i->s = false;
|
|
4403 |
changed = true;
|
|
4404 |
updateItem(i);
|
|
4405 |
}
|
|
4406 |
}
|
|
4407 |
}
|
|
4408 |
|
|
4409 |
for (i = from; i; i = i->next()) {
|
|
4410 |
if (!invert) {
|
|
4411 |
if (!i->s && i->isSelectable()) {
|
|
4412 |
i->s = true;
|
|
4413 |
changed = true;
|
|
4414 |
updateItem(i);
|
|
4415 |
}
|
|
4416 |
} else {
|
|
4417 |
bool sel = !i->s;
|
|
4418 |
if (((bool)i->s != sel && sel && i->isSelectable()) || !sel) {
|
|
4419 |
i->s = sel;
|
|
4420 |
changed = true;
|
|
4421 |
updateItem(i);
|
|
4422 |
}
|
|
4423 |
}
|
|
4424 |
if (i == to)
|
|
4425 |
break;
|
|
4426 |
}
|
|
4427 |
if (changed) {
|
|
4428 |
emit selectionChanged();
|
|
4429 |
#ifndef QT_NO_ACCESSIBILITY
|
|
4430 |
QAccessible::updateAccessibility(viewport(), 0, QAccessible::Selection);
|
|
4431 |
#endif
|
|
4432 |
}
|
|
4433 |
}
|
|
4434 |
|
|
4435 |
/*! \reimp */
|
|
4436 |
void Q3ListBox::changeEvent(QEvent *ev)
|
|
4437 |
{
|
|
4438 |
if (ev->type() == QEvent::ActivationChange) {
|
|
4439 |
if (!isActiveWindow() && d->scrollTimer)
|
|
4440 |
d->scrollTimer->stop();
|
|
4441 |
if (!palette().isEqual(QPalette::Active, QPalette::Inactive))
|
|
4442 |
viewport()->update();
|
|
4443 |
}
|
|
4444 |
Q3ScrollView::changeEvent(ev);
|
|
4445 |
|
|
4446 |
if (ev->type() == QEvent::ApplicationFontChange || ev->type() == QEvent::FontChange)
|
|
4447 |
triggerUpdate(true);
|
|
4448 |
}
|
|
4449 |
|
|
4450 |
/*!
|
|
4451 |
Returns 0.
|
|
4452 |
|
|
4453 |
Make your derived classes return their own values for rtti(), and
|
|
4454 |
you can distinguish between listbox items. You should use values
|
|
4455 |
greater than 1000 preferably a large random number, to allow for
|
|
4456 |
extensions to this class.
|
|
4457 |
*/
|
|
4458 |
|
|
4459 |
int Q3ListBoxItem::rtti() const
|
|
4460 |
{
|
|
4461 |
return RTTI;
|
|
4462 |
}
|
|
4463 |
|
|
4464 |
/*!
|
|
4465 |
\fn bool Q3ListBox::dragSelect() const
|
|
4466 |
|
|
4467 |
Returns true. Dragging always selects.
|
|
4468 |
*/
|
|
4469 |
|
|
4470 |
/*!
|
|
4471 |
\fn void Q3ListBox::setDragSelect(bool b)
|
|
4472 |
|
|
4473 |
Does nothing. Dragging always selects. The \a b parameter is ignored.
|
|
4474 |
*/
|
|
4475 |
|
|
4476 |
/*!
|
|
4477 |
\fn bool Q3ListBox::autoScroll() const
|
|
4478 |
|
|
4479 |
Use dragAutoScroll() instead. This function always returns true.
|
|
4480 |
*/
|
|
4481 |
|
|
4482 |
/*!
|
|
4483 |
\fn void Q3ListBox::setAutoScroll(bool b)
|
|
4484 |
|
|
4485 |
Use setDragAutoScroll(\a b) instead.
|
|
4486 |
*/
|
|
4487 |
|
|
4488 |
/*!
|
|
4489 |
\fn bool Q3ListBox::autoScrollBar() const
|
|
4490 |
|
|
4491 |
Use vScrollBarMode() instead. Returns true if the vertical
|
|
4492 |
scrollbar mode is \c Auto.
|
|
4493 |
*/
|
|
4494 |
|
|
4495 |
/*!
|
|
4496 |
\fn void Q3ListBox::setAutoScrollBar(bool enable)
|
|
4497 |
|
|
4498 |
Use setVScrollBarMode() instead.
|
|
4499 |
|
|
4500 |
If \a enable is true, pass \c Auto as the argument to
|
|
4501 |
setVScrollBarMode(); otherwise, pass \c AlwaysOff.
|
|
4502 |
*/
|
|
4503 |
|
|
4504 |
/*!
|
|
4505 |
\fn bool Q3ListBox::scrollBar() const
|
|
4506 |
|
|
4507 |
Use vScrollBarMode() instead. Returns true if the vertical
|
|
4508 |
scrollbar mode is not \c AlwaysOff.
|
|
4509 |
*/
|
|
4510 |
|
|
4511 |
/*!
|
|
4512 |
\fn void Q3ListBox::setScrollBar(bool enable)
|
|
4513 |
|
|
4514 |
Use setVScrollBarMode() instead.
|
|
4515 |
|
|
4516 |
If \a enable is true, pass \c AlwaysOn as the argument to
|
|
4517 |
setVScrollBarMode(); otherwise, pass \c AlwaysOff.
|
|
4518 |
*/
|
|
4519 |
|
|
4520 |
/*!
|
|
4521 |
\fn bool Q3ListBox::autoBottomScrollBar() const
|
|
4522 |
|
|
4523 |
Use hScrollBarMode() instead. Returns true if the horizontal
|
|
4524 |
scrollbar mode is set to \c Auto.
|
|
4525 |
*/
|
|
4526 |
|
|
4527 |
/*!
|
|
4528 |
\fn void Q3ListBox::setAutoBottomScrollBar(bool enable)
|
|
4529 |
|
|
4530 |
Use setHScrollBarMode() instead.
|
|
4531 |
|
|
4532 |
If \a enable is true, pass \c Auto as the argument to
|
|
4533 |
setHScrollBarMode(); otherwise, pass \c AlwaysOff.
|
|
4534 |
*/
|
|
4535 |
|
|
4536 |
/*!
|
|
4537 |
\fn bool Q3ListBox::bottomScrollBar() const
|
|
4538 |
|
|
4539 |
Use hScrollBarMode() instead. Returns true if the horizontal
|
|
4540 |
scrollbar mode is not \c AlwaysOff.
|
|
4541 |
*/
|
|
4542 |
|
|
4543 |
/*!
|
|
4544 |
\fn void Q3ListBox::setBottomScrollBar(bool enable)
|
|
4545 |
|
|
4546 |
Use setHScrollBarMode() instead.
|
|
4547 |
|
|
4548 |
If \a enable is true, pass \c AlwaysOn as the argument to
|
|
4549 |
setHScrollBarMode(); otherwise, pass \c AlwaysOff.
|
|
4550 |
*/
|
|
4551 |
|
|
4552 |
/*!
|
|
4553 |
\fn bool Q3ListBox::smoothScrolling() const
|
|
4554 |
|
|
4555 |
Returns false. Qt always scrolls smoothly.
|
|
4556 |
*/
|
|
4557 |
|
|
4558 |
/*!
|
|
4559 |
\fn void Q3ListBox::setSmoothScrolling(bool b)
|
|
4560 |
|
|
4561 |
Does nothing. Qt always scrolls smoothly. The \a b parameter is
|
|
4562 |
ignored.
|
|
4563 |
*/
|
|
4564 |
|
|
4565 |
/*!
|
|
4566 |
\fn bool Q3ListBox::autoUpdate() const
|
|
4567 |
|
|
4568 |
Returns true. Qt always updates automatically.
|
|
4569 |
*/
|
|
4570 |
|
|
4571 |
/*!
|
|
4572 |
\fn void Q3ListBox::setAutoUpdate(bool b)
|
|
4573 |
|
|
4574 |
Does nothing. Qt always updates automatically. The \a b parameter
|
|
4575 |
is ignored.
|
|
4576 |
*/
|
|
4577 |
|
|
4578 |
/*!
|
|
4579 |
\fn void Q3ListBox::setFixedVisibleLines(int lines)
|
|
4580 |
|
|
4581 |
Use setRowMode(\a lines) instead.
|
|
4582 |
*/
|
|
4583 |
|
|
4584 |
/*!
|
|
4585 |
\fn int Q3ListBox::cellHeight(int i) const
|
|
4586 |
|
|
4587 |
Use itemHeight(\a i) instead.
|
|
4588 |
*/
|
|
4589 |
|
|
4590 |
/*!
|
|
4591 |
\fn int Q3ListBox::cellHeight() const
|
|
4592 |
|
|
4593 |
Use itemHeight() instead.
|
|
4594 |
*/
|
|
4595 |
|
|
4596 |
/*!
|
|
4597 |
\fn int Q3ListBox::cellWidth() const
|
|
4598 |
|
|
4599 |
Use maxItemWidth() instead.
|
|
4600 |
*/
|
|
4601 |
|
|
4602 |
/*!
|
|
4603 |
\fn int Q3ListBox::cellWidth(int i) const
|
|
4604 |
|
|
4605 |
Use maxItemWidth(\a i) instead.
|
|
4606 |
*/
|
|
4607 |
|
|
4608 |
/*!
|
|
4609 |
\fn int Q3ListBox::numCols() const
|
|
4610 |
|
|
4611 |
Use numColumns() instead.
|
|
4612 |
*/
|
|
4613 |
|
|
4614 |
/*!
|
|
4615 |
\fn void Q3ListBox::updateCellWidth()
|
|
4616 |
|
|
4617 |
Does nothing. Qt automatically updates.
|
|
4618 |
*/
|
|
4619 |
|
|
4620 |
/*!
|
|
4621 |
\fn int Q3ListBox::totalWidth() const
|
|
4622 |
|
|
4623 |
Use contentsWidth() instead.
|
|
4624 |
*/
|
|
4625 |
|
|
4626 |
/*!
|
|
4627 |
\fn int Q3ListBox::totalHeight() const
|
|
4628 |
|
|
4629 |
Use contentsHeight() instead.
|
|
4630 |
*/
|
|
4631 |
|
|
4632 |
/*!
|
|
4633 |
\fn int Q3ListBox::findItem(int yPos) const
|
|
4634 |
|
|
4635 |
Use index(itemAt(\a yPos)) instead.
|
|
4636 |
*/
|
|
4637 |
|
|
4638 |
/*!
|
|
4639 |
\fn bool Q3ListBoxItem::selected() const
|
|
4640 |
|
|
4641 |
Use isSelected() instead. Returns true if isSelected()
|
|
4642 |
returns true.
|
|
4643 |
*/
|
|
4644 |
|
|
4645 |
/*!
|
|
4646 |
\fn bool Q3ListBoxItem::current() const
|
|
4647 |
|
|
4648 |
Use isCurrent() instead. Returns true if isCurrent()
|
|
4649 |
returns true.
|
|
4650 |
*/
|
|
4651 |
|
|
4652 |
/*!
|
|
4653 |
\enum Q3ListBox::StringComparisonMode
|
|
4654 |
|
|
4655 |
This enum type is used to set the string comparison mode when
|
|
4656 |
searching for an item. We'll refer to the string being searched
|
|
4657 |
as the 'target' string.
|
|
4658 |
|
|
4659 |
\value CaseSensitive The strings must match case sensitively.
|
|
4660 |
\value ExactMatch The target and search strings must match exactly.
|
|
4661 |
\value BeginsWith The target string begins with the search string.
|
|
4662 |
\value EndsWith The target string ends with the search string.
|
|
4663 |
\value Contains The target string contains the search string.
|
|
4664 |
|
|
4665 |
If you OR these flags together (excluding \c CaseSensitive), the
|
|
4666 |
search criteria be applied in the following order: \c ExactMatch,
|
|
4667 |
\c BeginsWith, \c EndsWith, \c Contains.
|
|
4668 |
|
|
4669 |
Matching is case-insensitive unless \c CaseSensitive is set. \c
|
|
4670 |
CaseSensitive can be OR-ed with any combination of the other
|
|
4671 |
flags.
|
|
4672 |
|
|
4673 |
\sa ComparisonFlags
|
|
4674 |
*/
|
|
4675 |
|
|
4676 |
/*!
|
|
4677 |
\typedef Q3ListBox::ComparisonFlags
|
|
4678 |
|
|
4679 |
This typedef is used in Q3IconView's API for values that are OR'd
|
|
4680 |
combinations of \l StringComparisonMode values.
|
|
4681 |
|
|
4682 |
\sa StringComparisonMode
|
|
4683 |
*/
|
|
4684 |
|
|
4685 |
QT_END_NAMESPACE
|
|
4686 |
|
|
4687 |
#endif // QT_NO_LISTBOX
|