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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 QtGui 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 "qstandarditemmodel.h"
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#ifndef QT_NO_STANDARDITEMMODEL
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#include <QtCore/qdatetime.h>
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#include <QtCore/qlist.h>
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#include <QtCore/qmap.h>
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#include <QtCore/qpair.h>
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#include <QtCore/qvariant.h>
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#include <QtCore/qvector.h>
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#include <QtCore/qstringlist.h>
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#include <QtCore/qbitarray.h>
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#include <QtCore/qmimedata.h>
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#include <private/qstandarditemmodel_p.h>
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#include <qdebug.h>
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QT_BEGIN_NAMESPACE
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class QStandardItemModelLessThan
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{
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public:
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inline QStandardItemModelLessThan()
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{ }
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inline bool operator()(const QPair<QStandardItem*, int> &l,
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const QPair<QStandardItem*, int> &r) const
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{
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return *(l.first) < *(r.first);
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}
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};
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class QStandardItemModelGreaterThan
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{
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public:
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inline QStandardItemModelGreaterThan()
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{ }
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inline bool operator()(const QPair<QStandardItem*, int> &l,
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const QPair<QStandardItem*, int> &r) const
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{
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return *(r.first) < *(l.first);
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}
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};
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/*!
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\internal
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*/
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QStandardItemPrivate::~QStandardItemPrivate()
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{
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QVector<QStandardItem*>::const_iterator it;
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for (it = children.constBegin(); it != children.constEnd(); ++it) {
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QStandardItem *child = *it;
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if (child)
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child->d_func()->setModel(0);
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delete child;
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}
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children.clear();
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if (parent && model)
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parent->d_func()->childDeleted(q_func());
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}
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/*!
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\internal
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*/
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QPair<int, int> QStandardItemPrivate::position() const
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{
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if (QStandardItem *par = parent) {
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int idx = par->d_func()->childIndex(q_func());
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if (idx == -1)
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return QPair<int, int>(-1, -1);
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return QPair<int, int>(idx / par->columnCount(), idx % par->columnCount());
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}
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// ### support header items?
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return QPair<int, int>(-1, -1);
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}
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/*!
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\internal
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*/
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void QStandardItemPrivate::setChild(int row, int column, QStandardItem *item,
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bool emitChanged)
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{
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Q_Q(QStandardItem);
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if (item == q) {
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qWarning("QStandardItem::setChild: Can't make an item a child of itself %p",
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item);
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return;
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}
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if ((row < 0) || (column < 0))
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return;
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if (rows <= row)
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q->setRowCount(row + 1);
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if (columns <= column)
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q->setColumnCount(column + 1);
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int index = childIndex(row, column);
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Q_ASSERT(index != -1);
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QStandardItem *oldItem = children.at(index);
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if (item == oldItem)
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return;
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if (item) {
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if (item->d_func()->parent == 0) {
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item->d_func()->setParentAndModel(q, model);
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} else {
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qWarning("QStandardItem::setChild: Ignoring duplicate insertion of item %p",
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item);
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return;
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}
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}
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if (oldItem)
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oldItem->d_func()->setModel(0);
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delete oldItem;
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children.replace(index, item);
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if (emitChanged && model)
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model->d_func()->itemChanged(item);
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}
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/*!
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\internal
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*/
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void QStandardItemPrivate::changeFlags(bool enable, Qt::ItemFlags f)
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{
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Q_Q(QStandardItem);
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Qt::ItemFlags flags = q->flags();
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if (enable)
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flags |= f;
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else
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flags &= ~f;
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q->setFlags(flags);
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}
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/*!
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\internal
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*/
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void QStandardItemPrivate::childDeleted(QStandardItem *child)
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{
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int index = childIndex(child);
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Q_ASSERT(index != -1);
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children.replace(index, 0);
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}
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/*!
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\internal
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*/
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void QStandardItemPrivate::setItemData(const QMap<int, QVariant> &roles)
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{
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Q_Q(QStandardItem);
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//let's build the vector of new values
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QVector<QWidgetItemData> newValues;
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QMap<int, QVariant>::const_iterator it;
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for (it = roles.begin(); it != roles.end(); ++it) {
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QVariant value = it.value();
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if (value.isValid()) {
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int role = it.key();
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role = (role == Qt::EditRole) ? Qt::DisplayRole : role;
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QWidgetItemData wid(role,it.value());
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newValues.append(wid);
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}
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}
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if (values!=newValues) {
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values=newValues;
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if (model)
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model->d_func()->itemChanged(q);
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}
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}
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/*!
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\internal
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*/
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const QMap<int, QVariant> QStandardItemPrivate::itemData() const
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{
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QMap<int, QVariant> result;
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QVector<QWidgetItemData>::const_iterator it;
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for (it = values.begin(); it != values.end(); ++it)
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result.insert((*it).role, (*it).value);
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return result;
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}
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/*!
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\internal
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*/
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void QStandardItemPrivate::sortChildren(int column, Qt::SortOrder order)
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{
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Q_Q(QStandardItem);
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if (column >= columnCount())
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return;
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QVector<QPair<QStandardItem*, int> > sortable;
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QVector<int> unsortable;
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sortable.reserve(rowCount());
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unsortable.reserve(rowCount());
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for (int row = 0; row < rowCount(); ++row) {
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QStandardItem *itm = q->child(row, column);
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if (itm)
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sortable.append(QPair<QStandardItem*,int>(itm, row));
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else
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unsortable.append(row);
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}
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if (order == Qt::AscendingOrder) {
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QStandardItemModelLessThan lt;
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qStableSort(sortable.begin(), sortable.end(), lt);
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} else {
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QStandardItemModelGreaterThan gt;
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qStableSort(sortable.begin(), sortable.end(), gt);
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}
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QModelIndexList changedPersistentIndexesFrom, changedPersistentIndexesTo;
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QVector<QStandardItem*> sorted_children(children.count());
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for (int i = 0; i < rowCount(); ++i) {
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int r = (i < sortable.count()
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? sortable.at(i).second
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: unsortable.at(i - sortable.count()));
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for (int c = 0; c < columnCount(); ++c) {
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QStandardItem *itm = q->child(r, c);
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sorted_children[childIndex(i, c)] = itm;
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if (model) {
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QModelIndex from = model->createIndex(r, c, q);
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if (model->d_func()->persistent.indexes.contains(from)) {
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QModelIndex to = model->createIndex(i, c, q);
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changedPersistentIndexesFrom.append(from);
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changedPersistentIndexesTo.append(to);
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}
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}
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}
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}
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children = sorted_children;
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if (model) {
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model->changePersistentIndexList(changedPersistentIndexesFrom, changedPersistentIndexesTo);
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}
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QVector<QStandardItem*>::iterator it;
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for (it = children.begin(); it != children.end(); ++it) {
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if (*it)
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(*it)->d_func()->sortChildren(column, order);
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}
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}
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/*!
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\internal
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set the model of this item and all its children
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*/
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void QStandardItemPrivate::setModel(QStandardItemModel *mod)
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{
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if (children.isEmpty()) {
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if (model)
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model->d_func()->invalidatePersistentIndex(model->indexFromItem(q_ptr));
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model = mod;
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} else {
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QStack<QStandardItem*> stack;
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stack.push(q_ptr);
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while (!stack.isEmpty()) {
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QStandardItem *itm = stack.pop();
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if (itm->d_func()->model) {
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itm->d_func()->model->d_func()->invalidatePersistentIndex(itm->d_func()->model->indexFromItem(itm));
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}
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itm->d_func()->model = mod;
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const QVector<QStandardItem*> &childList = itm->d_func()->children;
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for (int i = 0; i < childList.count(); ++i) {
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QStandardItem *chi = childList.at(i);
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if (chi)
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stack.push(chi);
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}
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}
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}
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}
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/*!
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\internal
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*/
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QStandardItemModelPrivate::QStandardItemModelPrivate()
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: root(new QStandardItem),
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itemPrototype(0),
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sortRole(Qt::DisplayRole)
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{
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root->setFlags(Qt::ItemIsDropEnabled);
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}
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/*!
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\internal
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*/
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QStandardItemModelPrivate::~QStandardItemModelPrivate()
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{
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delete itemPrototype;
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qDeleteAll(columnHeaderItems);
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qDeleteAll(rowHeaderItems);
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}
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/*!
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\internal
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*/
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void QStandardItemModelPrivate::init()
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{
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Q_Q(QStandardItemModel);
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QObject::connect(q, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
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q, SLOT(_q_emitItemChanged(QModelIndex,QModelIndex)));
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}
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/*!
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\internal
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*/
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void QStandardItemModelPrivate::_q_emitItemChanged(const QModelIndex &topLeft,
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const QModelIndex &bottomRight)
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{
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Q_Q(QStandardItemModel);
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QModelIndex parent = topLeft.parent();
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for (int row = topLeft.row(); row <= bottomRight.row(); ++row) {
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for (int column = topLeft.column(); column <= bottomRight.column(); ++column) {
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QModelIndex index = q->index(row, column, parent);
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if (QStandardItem *item = itemFromIndex(index))
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emit q->itemChanged(item);
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}
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}
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}
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/*!
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365 |
\internal
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*/
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bool QStandardItemPrivate::insertRows(int row, const QList<QStandardItem*> &items)
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{
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Q_Q(QStandardItem);
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if ((row < 0) || (row > rowCount()))
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return false;
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int count = items.count();
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if (model)
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model->d_func()->rowsAboutToBeInserted(q, row, row + count - 1);
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if (rowCount() == 0) {
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if (columnCount() == 0)
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377 |
q->setColumnCount(1);
|
|
|
378 |
children.resize(columnCount() * count);
|
|
|
379 |
rows = count;
|
|
|
380 |
} else {
|
|
|
381 |
rows += count;
|
|
|
382 |
int index = childIndex(row, 0);
|
|
|
383 |
if (index != -1)
|
|
|
384 |
children.insert(index, columnCount() * count, 0);
|
|
|
385 |
}
|
|
|
386 |
for (int i = 0; i < items.count(); ++i) {
|
|
|
387 |
QStandardItem *item = items.at(i);
|
|
|
388 |
item->d_func()->model = model;
|
|
|
389 |
item->d_func()->parent = q;
|
|
|
390 |
int index = childIndex(i + row, 0);
|
|
|
391 |
children.replace(index, item);
|
|
|
392 |
}
|
|
|
393 |
if (model)
|
|
|
394 |
model->d_func()->rowsInserted(q, row, count);
|
|
|
395 |
return true;
|
|
|
396 |
}
|
|
|
397 |
|
|
|
398 |
bool QStandardItemPrivate::insertRows(int row, int count, const QList<QStandardItem*> &items)
|
|
|
399 |
{
|
|
|
400 |
Q_Q(QStandardItem);
|
|
|
401 |
if ((count < 1) || (row < 0) || (row > rowCount()))
|
|
|
402 |
return false;
|
|
|
403 |
if (model)
|
|
|
404 |
model->d_func()->rowsAboutToBeInserted(q, row, row + count - 1);
|
|
|
405 |
if (rowCount() == 0) {
|
|
|
406 |
children.resize(columnCount() * count);
|
|
|
407 |
rows = count;
|
|
|
408 |
} else {
|
|
|
409 |
rows += count;
|
|
|
410 |
int index = childIndex(row, 0);
|
|
|
411 |
if (index != -1)
|
|
|
412 |
children.insert(index, columnCount() * count, 0);
|
|
|
413 |
}
|
|
|
414 |
if (!items.isEmpty()) {
|
|
|
415 |
int index = childIndex(row, 0);
|
|
|
416 |
int limit = qMin(items.count(), columnCount() * count);
|
|
|
417 |
for (int i = 0; i < limit; ++i) {
|
|
|
418 |
QStandardItem *item = items.at(i);
|
|
|
419 |
if (item) {
|
|
|
420 |
if (item->d_func()->parent == 0) {
|
|
|
421 |
item->d_func()->setParentAndModel(q, model);
|
|
|
422 |
} else {
|
|
|
423 |
qWarning("QStandardItem::insertRows: Ignoring duplicate insertion of item %p",
|
|
|
424 |
item);
|
|
|
425 |
item = 0;
|
|
|
426 |
}
|
|
|
427 |
}
|
|
|
428 |
children.replace(index, item);
|
|
|
429 |
++index;
|
|
|
430 |
}
|
|
|
431 |
}
|
|
|
432 |
if (model)
|
|
|
433 |
model->d_func()->rowsInserted(q, row, count);
|
|
|
434 |
return true;
|
|
|
435 |
}
|
|
|
436 |
|
|
|
437 |
/*!
|
|
|
438 |
\internal
|
|
|
439 |
*/
|
|
|
440 |
bool QStandardItemPrivate::insertColumns(int column, int count, const QList<QStandardItem*> &items)
|
|
|
441 |
{
|
|
|
442 |
Q_Q(QStandardItem);
|
|
|
443 |
if ((count < 1) || (column < 0) || (column > columnCount()))
|
|
|
444 |
return false;
|
|
|
445 |
if (model)
|
|
|
446 |
model->d_func()->columnsAboutToBeInserted(q, column, column + count - 1);
|
|
|
447 |
if (columnCount() == 0) {
|
|
|
448 |
children.resize(rowCount() * count);
|
|
|
449 |
columns = count;
|
|
|
450 |
} else {
|
|
|
451 |
columns += count;
|
|
|
452 |
int index = childIndex(0, column);
|
|
|
453 |
for (int row = 0; row < rowCount(); ++row) {
|
|
|
454 |
children.insert(index, count, 0);
|
|
|
455 |
index += columnCount();
|
|
|
456 |
}
|
|
|
457 |
}
|
|
|
458 |
if (!items.isEmpty()) {
|
|
|
459 |
int limit = qMin(items.count(), rowCount() * count);
|
|
|
460 |
for (int i = 0; i < limit; ++i) {
|
|
|
461 |
QStandardItem *item = items.at(i);
|
|
|
462 |
if (item) {
|
|
|
463 |
if (item->d_func()->parent == 0) {
|
|
|
464 |
item->d_func()->setParentAndModel(q, model);
|
|
|
465 |
} else {
|
|
|
466 |
qWarning("QStandardItem::insertColumns: Ignoring duplicate insertion of item %p",
|
|
|
467 |
item);
|
|
|
468 |
item = 0;
|
|
|
469 |
}
|
|
|
470 |
}
|
|
|
471 |
int r = i / count;
|
|
|
472 |
int c = column + (i % count);
|
|
|
473 |
int index = childIndex(r, c);
|
|
|
474 |
children.replace(index, item);
|
|
|
475 |
}
|
|
|
476 |
}
|
|
|
477 |
if (model)
|
|
|
478 |
model->d_func()->columnsInserted(q, column, count);
|
|
|
479 |
return true;
|
|
|
480 |
}
|
|
|
481 |
|
|
|
482 |
/*!
|
|
|
483 |
\internal
|
|
|
484 |
*/
|
|
|
485 |
void QStandardItemModelPrivate::itemChanged(QStandardItem *item)
|
|
|
486 |
{
|
|
|
487 |
Q_Q(QStandardItemModel);
|
|
|
488 |
if (item->d_func()->parent == 0) {
|
|
|
489 |
// Header item
|
|
|
490 |
int idx = columnHeaderItems.indexOf(item);
|
|
|
491 |
if (idx != -1) {
|
|
|
492 |
emit q->headerDataChanged(Qt::Horizontal, idx, idx);
|
|
|
493 |
} else {
|
|
|
494 |
idx = rowHeaderItems.indexOf(item);
|
|
|
495 |
if (idx != -1)
|
|
|
496 |
emit q->headerDataChanged(Qt::Vertical, idx, idx);
|
|
|
497 |
}
|
|
|
498 |
} else {
|
|
|
499 |
// Normal item
|
|
|
500 |
QModelIndex index = q->indexFromItem(item);
|
|
|
501 |
emit q->dataChanged(index, index);
|
|
|
502 |
}
|
|
|
503 |
}
|
|
|
504 |
|
|
|
505 |
/*!
|
|
|
506 |
\internal
|
|
|
507 |
*/
|
|
|
508 |
void QStandardItemModelPrivate::rowsAboutToBeInserted(QStandardItem *parent,
|
|
|
509 |
int start, int end)
|
|
|
510 |
{
|
|
|
511 |
Q_Q(QStandardItemModel);
|
|
|
512 |
QModelIndex index = q->indexFromItem(parent);
|
|
|
513 |
q->beginInsertRows(index, start, end);
|
|
|
514 |
}
|
|
|
515 |
|
|
|
516 |
/*!
|
|
|
517 |
\internal
|
|
|
518 |
*/
|
|
|
519 |
void QStandardItemModelPrivate::columnsAboutToBeInserted(QStandardItem *parent,
|
|
|
520 |
int start, int end)
|
|
|
521 |
{
|
|
|
522 |
Q_Q(QStandardItemModel);
|
|
|
523 |
QModelIndex index = q->indexFromItem(parent);
|
|
|
524 |
q->beginInsertColumns(index, start, end);
|
|
|
525 |
}
|
|
|
526 |
|
|
|
527 |
/*!
|
|
|
528 |
\internal
|
|
|
529 |
*/
|
|
|
530 |
void QStandardItemModelPrivate::rowsAboutToBeRemoved(QStandardItem *parent,
|
|
|
531 |
int start, int end)
|
|
|
532 |
{
|
|
|
533 |
Q_Q(QStandardItemModel);
|
|
|
534 |
QModelIndex index = q->indexFromItem(parent);
|
|
|
535 |
q->beginRemoveRows(index, start, end);
|
|
|
536 |
}
|
|
|
537 |
|
|
|
538 |
/*!
|
|
|
539 |
\internal
|
|
|
540 |
*/
|
|
|
541 |
void QStandardItemModelPrivate::columnsAboutToBeRemoved(QStandardItem *parent,
|
|
|
542 |
int start, int end)
|
|
|
543 |
{
|
|
|
544 |
Q_Q(QStandardItemModel);
|
|
|
545 |
QModelIndex index = q->indexFromItem(parent);
|
|
|
546 |
q->beginRemoveColumns(index, start, end);
|
|
|
547 |
}
|
|
|
548 |
|
|
|
549 |
/*!
|
|
|
550 |
\internal
|
|
|
551 |
*/
|
|
|
552 |
void QStandardItemModelPrivate::rowsInserted(QStandardItem *parent,
|
|
|
553 |
int row, int count)
|
|
|
554 |
{
|
|
|
555 |
Q_Q(QStandardItemModel);
|
|
|
556 |
if (parent == root.data())
|
|
|
557 |
rowHeaderItems.insert(row, count, 0);
|
|
|
558 |
q->endInsertRows();
|
|
|
559 |
}
|
|
|
560 |
|
|
|
561 |
/*!
|
|
|
562 |
\internal
|
|
|
563 |
*/
|
|
|
564 |
void QStandardItemModelPrivate::columnsInserted(QStandardItem *parent,
|
|
|
565 |
int column, int count)
|
|
|
566 |
{
|
|
|
567 |
Q_Q(QStandardItemModel);
|
|
|
568 |
if (parent == root.data())
|
|
|
569 |
columnHeaderItems.insert(column, count, 0);
|
|
|
570 |
q->endInsertColumns();
|
|
|
571 |
}
|
|
|
572 |
|
|
|
573 |
/*!
|
|
|
574 |
\internal
|
|
|
575 |
*/
|
|
|
576 |
void QStandardItemModelPrivate::rowsRemoved(QStandardItem *parent,
|
|
|
577 |
int row, int count)
|
|
|
578 |
{
|
|
|
579 |
Q_Q(QStandardItemModel);
|
|
|
580 |
if (parent == root.data()) {
|
|
|
581 |
for (int i = row; i < row + count; ++i) {
|
|
|
582 |
QStandardItem *oldItem = rowHeaderItems.at(i);
|
|
|
583 |
if (oldItem)
|
|
|
584 |
oldItem->d_func()->setModel(0);
|
|
|
585 |
delete oldItem;
|
|
|
586 |
}
|
|
|
587 |
rowHeaderItems.remove(row, count);
|
|
|
588 |
}
|
|
|
589 |
q->endRemoveRows();
|
|
|
590 |
}
|
|
|
591 |
|
|
|
592 |
/*!
|
|
|
593 |
\internal
|
|
|
594 |
*/
|
|
|
595 |
void QStandardItemModelPrivate::columnsRemoved(QStandardItem *parent,
|
|
|
596 |
int column, int count)
|
|
|
597 |
{
|
|
|
598 |
Q_Q(QStandardItemModel);
|
|
|
599 |
if (parent == root.data()) {
|
|
|
600 |
for (int i = column; i < column + count; ++i) {
|
|
|
601 |
QStandardItem *oldItem = columnHeaderItems.at(i);
|
|
|
602 |
if (oldItem)
|
|
|
603 |
oldItem->d_func()->setModel(0);
|
|
|
604 |
delete oldItem;
|
|
|
605 |
}
|
|
|
606 |
columnHeaderItems.remove(column, count);
|
|
|
607 |
}
|
|
|
608 |
q->endRemoveColumns();
|
|
|
609 |
}
|
|
|
610 |
|
|
|
611 |
/*!
|
|
|
612 |
\class QStandardItem
|
|
|
613 |
\brief The QStandardItem class provides an item for use with the
|
|
|
614 |
QStandardItemModel class.
|
|
|
615 |
\since 4.2
|
|
|
616 |
\ingroup model-view
|
|
|
617 |
|
|
|
618 |
Items usually contain text, icons, or checkboxes.
|
|
|
619 |
|
|
|
620 |
Each item can have its own background brush which is set with the
|
|
|
621 |
setBackground() function. The current background brush can be found with
|
|
|
622 |
background(). The text label for each item can be rendered with its own
|
|
|
623 |
font and brush. These are specified with the setFont() and setForeground()
|
|
|
624 |
functions, and read with font() and foreground().
|
|
|
625 |
|
|
|
626 |
By default, items are enabled, editable, selectable, checkable, and can be
|
|
|
627 |
used both as the source of a drag and drop operation and as a drop target.
|
|
|
628 |
Each item's flags can be changed by calling setFlags(). Checkable items
|
|
|
629 |
can be checked and unchecked with the setCheckState() function. The
|
|
|
630 |
corresponding checkState() function indicates whether the item is
|
|
|
631 |
currently checked.
|
|
|
632 |
|
|
|
633 |
You can store application-specific data in an item by calling setData().
|
|
|
634 |
|
|
|
635 |
Each item can have a two-dimensional table of child items. This makes it
|
|
|
636 |
possible to build hierarchies of items. The typical hierarchy is the tree,
|
|
|
637 |
in which case the child table is a table with a single column (a list).
|
|
|
638 |
|
|
|
639 |
The dimensions of the child table can be set with setRowCount() and
|
|
|
640 |
setColumnCount(). Items can be positioned in the child table with
|
|
|
641 |
setChild(). Get a pointer to a child item with child(). New rows and
|
|
|
642 |
columns of children can also be inserted with insertRow() and
|
|
|
643 |
insertColumn(), or appended with appendRow() and appendColumn(). When
|
|
|
644 |
using the append and insert functions, the dimensions of the child table
|
|
|
645 |
will grow as needed.
|
|
|
646 |
|
|
|
647 |
An existing row of children can be removed with removeRow() or takeRow();
|
|
|
648 |
correspondingly, a column can be removed with removeColumn() or
|
|
|
649 |
takeColumn().
|
|
|
650 |
|
|
|
651 |
An item's children can be sorted by calling sortChildren().
|
|
|
652 |
|
|
|
653 |
\section1 Subclassing
|
|
|
654 |
|
|
|
655 |
When subclassing QStandardItem to provide custom items, it is possible to
|
|
|
656 |
define new types for them so that they can be distinguished from the base
|
|
|
657 |
class. The type() function should be reimplemented to return a new type
|
|
|
658 |
value equal to or greater than \l UserType.
|
|
|
659 |
|
|
|
660 |
Reimplement data() and setData() if you want to perform custom handling of
|
|
|
661 |
data queries and/or control how an item's data is represented.
|
|
|
662 |
|
|
|
663 |
Reimplement clone() if you want QStandardItemModel to be able to create
|
|
|
664 |
instances of your custom item class on demand (see
|
|
|
665 |
QStandardItemModel::setItemPrototype()).
|
|
|
666 |
|
|
|
667 |
Reimplement read() and write() if you want to control how items are
|
|
|
668 |
represented in their serialized form.
|
|
|
669 |
|
|
|
670 |
Reimplement \l{operator<()} if you want to control the semantics of item
|
|
|
671 |
comparison. \l{operator<()} determines the sorted order when sorting items
|
|
|
672 |
with sortChildren() or with QStandardItemModel::sort().
|
|
|
673 |
|
|
|
674 |
\sa QStandardItemModel, {Item View Convenience Classes}, {Model/View Programming}
|
|
|
675 |
*/
|
|
|
676 |
|
|
|
677 |
/*!
|
|
|
678 |
\enum QStandardItem::ItemType
|
|
|
679 |
|
|
|
680 |
This enum describes the types that are used to describe standard items.
|
|
|
681 |
|
|
|
682 |
\value Type The default type for standard items.
|
|
|
683 |
\value UserType The minimum value for custom types. Values below UserType are
|
|
|
684 |
reserved by Qt.
|
|
|
685 |
|
|
|
686 |
You can define new user types in QStandardItem subclasses to ensure that
|
|
|
687 |
custom items are treated specially; for example, when items are sorted.
|
|
|
688 |
|
|
|
689 |
\sa type()
|
|
|
690 |
*/
|
|
|
691 |
|
|
|
692 |
/*!
|
|
|
693 |
Constructs an item.
|
|
|
694 |
*/
|
|
|
695 |
QStandardItem::QStandardItem()
|
|
|
696 |
: d_ptr(new QStandardItemPrivate)
|
|
|
697 |
{
|
|
|
698 |
Q_D(QStandardItem);
|
|
|
699 |
d->q_ptr = this;
|
|
|
700 |
}
|
|
|
701 |
|
|
|
702 |
/*!
|
|
|
703 |
Constructs an item with the given \a text.
|
|
|
704 |
*/
|
|
|
705 |
QStandardItem::QStandardItem(const QString &text)
|
|
|
706 |
: d_ptr(new QStandardItemPrivate)
|
|
|
707 |
{
|
|
|
708 |
Q_D(QStandardItem);
|
|
|
709 |
d->q_ptr = this;
|
|
|
710 |
setText(text);
|
|
|
711 |
}
|
|
|
712 |
|
|
|
713 |
/*!
|
|
|
714 |
Constructs an item with the given \a icon and \a text.
|
|
|
715 |
*/
|
|
|
716 |
QStandardItem::QStandardItem(const QIcon &icon, const QString &text)
|
|
|
717 |
: d_ptr(new QStandardItemPrivate)
|
|
|
718 |
{
|
|
|
719 |
Q_D(QStandardItem);
|
|
|
720 |
d->q_ptr = this;
|
|
|
721 |
setIcon(icon);
|
|
|
722 |
setText(text);
|
|
|
723 |
}
|
|
|
724 |
|
|
|
725 |
/*!
|
|
|
726 |
Constructs an item with \a rows rows and \a columns columns of child items.
|
|
|
727 |
*/
|
|
|
728 |
QStandardItem::QStandardItem(int rows, int columns)
|
|
|
729 |
: d_ptr(new QStandardItemPrivate)
|
|
|
730 |
{
|
|
|
731 |
Q_D(QStandardItem);
|
|
|
732 |
d->q_ptr = this;
|
|
|
733 |
setRowCount(rows);
|
|
|
734 |
setColumnCount(columns);
|
|
|
735 |
}
|
|
|
736 |
|
|
|
737 |
/*!
|
|
|
738 |
\internal
|
|
|
739 |
*/
|
|
|
740 |
QStandardItem::QStandardItem(QStandardItemPrivate &dd)
|
|
|
741 |
: d_ptr(&dd)
|
|
|
742 |
{
|
|
|
743 |
Q_D(QStandardItem);
|
|
|
744 |
d->q_ptr = this;
|
|
|
745 |
}
|
|
|
746 |
|
|
|
747 |
/*!
|
|
|
748 |
Constructs a copy of \a other. Note that model() is
|
|
|
749 |
not copied.
|
|
|
750 |
|
|
|
751 |
This function is useful when reimplementing clone().
|
|
|
752 |
*/
|
|
|
753 |
QStandardItem::QStandardItem(const QStandardItem &other)
|
|
|
754 |
: d_ptr(new QStandardItemPrivate)
|
|
|
755 |
{
|
|
|
756 |
Q_D(QStandardItem);
|
|
|
757 |
d->q_ptr = this;
|
|
|
758 |
operator=(other);
|
|
|
759 |
}
|
|
|
760 |
|
|
|
761 |
/*!
|
|
|
762 |
Assigns \a other's data and flags to this item. Note that
|
|
|
763 |
type() and model() are not copied.
|
|
|
764 |
|
|
|
765 |
This function is useful when reimplementing clone().
|
|
|
766 |
*/
|
|
|
767 |
QStandardItem &QStandardItem::operator=(const QStandardItem &other)
|
|
|
768 |
{
|
|
|
769 |
Q_D(QStandardItem);
|
|
|
770 |
d->values = other.d_func()->values;
|
|
|
771 |
return *this;
|
|
|
772 |
}
|
|
|
773 |
|
|
|
774 |
/*!
|
|
|
775 |
Destructs the item.
|
|
|
776 |
This causes the item's children to be destructed as well.
|
|
|
777 |
*/
|
|
|
778 |
QStandardItem::~QStandardItem()
|
|
|
779 |
{
|
|
|
780 |
}
|
|
|
781 |
|
|
|
782 |
/*!
|
|
|
783 |
Returns the item's parent item, or 0 if the item has no parent.
|
|
|
784 |
|
|
|
785 |
\sa child()
|
|
|
786 |
*/
|
|
|
787 |
QStandardItem *QStandardItem::parent() const
|
|
|
788 |
{
|
|
|
789 |
Q_D(const QStandardItem);
|
|
|
790 |
if (!d->model || (d->model->d_func()->root.data() != d->parent))
|
|
|
791 |
return d->parent;
|
|
|
792 |
return 0;
|
|
|
793 |
}
|
|
|
794 |
|
|
|
795 |
/*!
|
|
|
796 |
Sets the item's data for the given \a role to the specified \a value.
|
|
|
797 |
|
|
|
798 |
If you subclass QStandardItem and reimplement this function, your
|
|
|
799 |
reimplementation should call emitDataChanged() if you do not call
|
|
|
800 |
the base implementation of setData(). This will ensure that e.g.
|
|
|
801 |
views using the model are notified of the changes.
|
|
|
802 |
|
|
|
803 |
\note The default implementation treats Qt::EditRole and Qt::DisplayRole
|
|
|
804 |
as referring to the same data.
|
|
|
805 |
|
|
|
806 |
\sa Qt::ItemDataRole, data(), setFlags()
|
|
|
807 |
*/
|
|
|
808 |
void QStandardItem::setData(const QVariant &value, int role)
|
|
|
809 |
{
|
|
|
810 |
Q_D(QStandardItem);
|
|
|
811 |
role = (role == Qt::EditRole) ? Qt::DisplayRole : role;
|
|
|
812 |
QVector<QWidgetItemData>::iterator it;
|
|
|
813 |
for (it = d->values.begin(); it != d->values.end(); ++it) {
|
|
|
814 |
if ((*it).role == role) {
|
|
|
815 |
if (value.isValid()) {
|
|
|
816 |
if ((*it).value.type() == value.type() && (*it).value == value)
|
|
|
817 |
return;
|
|
|
818 |
(*it).value = value;
|
|
|
819 |
} else {
|
|
|
820 |
d->values.erase(it);
|
|
|
821 |
}
|
|
|
822 |
if (d->model)
|
|
|
823 |
d->model->d_func()->itemChanged(this);
|
|
|
824 |
return;
|
|
|
825 |
}
|
|
|
826 |
}
|
|
|
827 |
d->values.append(QWidgetItemData(role, value));
|
|
|
828 |
if (d->model)
|
|
|
829 |
d->model->d_func()->itemChanged(this);
|
|
|
830 |
}
|
|
|
831 |
|
|
|
832 |
/*!
|
|
|
833 |
Returns the item's data for the given \a role, or an invalid
|
|
|
834 |
QVariant if there is no data for the role.
|
|
|
835 |
|
|
|
836 |
\note The default implementation treats Qt::EditRole and Qt::DisplayRole
|
|
|
837 |
as referring to the same data.
|
|
|
838 |
*/
|
|
|
839 |
QVariant QStandardItem::data(int role) const
|
|
|
840 |
{
|
|
|
841 |
Q_D(const QStandardItem);
|
|
|
842 |
role = (role == Qt::EditRole) ? Qt::DisplayRole : role;
|
|
|
843 |
QVector<QWidgetItemData>::const_iterator it;
|
|
|
844 |
for (it = d->values.begin(); it != d->values.end(); ++it) {
|
|
|
845 |
if ((*it).role == role)
|
|
|
846 |
return (*it).value;
|
|
|
847 |
}
|
|
|
848 |
return QVariant();
|
|
|
849 |
}
|
|
|
850 |
|
|
|
851 |
/*!
|
|
|
852 |
\since 4.4
|
|
|
853 |
|
|
|
854 |
Causes the model associated with this item to emit a
|
|
|
855 |
\l{QAbstractItemModel::dataChanged()}{dataChanged}() signal for this
|
|
|
856 |
item.
|
|
|
857 |
|
|
|
858 |
You normally only need to call this function if you have subclassed
|
|
|
859 |
QStandardItem and reimplemented data() and/or setData().
|
|
|
860 |
|
|
|
861 |
\sa setData()
|
|
|
862 |
*/
|
|
|
863 |
void QStandardItem::emitDataChanged()
|
|
|
864 |
{
|
|
|
865 |
Q_D(QStandardItem);
|
|
|
866 |
if (d->model)
|
|
|
867 |
d->model->d_func()->itemChanged(this);
|
|
|
868 |
}
|
|
|
869 |
|
|
|
870 |
/*!
|
|
|
871 |
Sets the item flags for the item to \a flags.
|
|
|
872 |
|
|
|
873 |
The item flags determine how the user can interact with the item.
|
|
|
874 |
This is often used to disable an item.
|
|
|
875 |
|
|
|
876 |
\sa flags(), setData()
|
|
|
877 |
*/
|
|
|
878 |
void QStandardItem::setFlags(Qt::ItemFlags flags)
|
|
|
879 |
{
|
|
|
880 |
setData((int)flags, Qt::UserRole - 1);
|
|
|
881 |
}
|
|
|
882 |
|
|
|
883 |
/*!
|
|
|
884 |
Returns the item flags for the item.
|
|
|
885 |
|
|
|
886 |
The item flags determine how the user can interact with the item.
|
|
|
887 |
|
|
|
888 |
By default, items are enabled, editable, selectable, checkable, and can be
|
|
|
889 |
used both as the source of a drag and drop operation and as a drop target.
|
|
|
890 |
|
|
|
891 |
\sa setFlags()
|
|
|
892 |
*/
|
|
|
893 |
Qt::ItemFlags QStandardItem::flags() const
|
|
|
894 |
{
|
|
|
895 |
QVariant v = data(Qt::UserRole - 1);
|
|
|
896 |
if (!v.isValid())
|
|
|
897 |
return (Qt::ItemIsSelectable|Qt::ItemIsEnabled|Qt::ItemIsEditable
|
|
|
898 |
|Qt::ItemIsDragEnabled|Qt::ItemIsDropEnabled);
|
|
|
899 |
return Qt::ItemFlags(v.toInt());
|
|
|
900 |
}
|
|
|
901 |
|
|
|
902 |
/*!
|
|
|
903 |
\fn QString QStandardItem::text() const
|
|
|
904 |
|
|
|
905 |
Returns the item's text. This is the text that's presented to the user
|
|
|
906 |
in a view.
|
|
|
907 |
|
|
|
908 |
\sa setText()
|
|
|
909 |
*/
|
|
|
910 |
|
|
|
911 |
/*!
|
|
|
912 |
\fn void QStandardItem::setText(const QString &text)
|
|
|
913 |
|
|
|
914 |
Sets the item's text to the \a text specified.
|
|
|
915 |
|
|
|
916 |
\sa text(), setFont(), setForeground()
|
|
|
917 |
*/
|
|
|
918 |
|
|
|
919 |
/*!
|
|
|
920 |
\fn QIcon QStandardItem::icon() const
|
|
|
921 |
|
|
|
922 |
Returns the item's icon.
|
|
|
923 |
|
|
|
924 |
\sa setIcon(), {QAbstractItemView::iconSize}{iconSize}
|
|
|
925 |
*/
|
|
|
926 |
|
|
|
927 |
/*!
|
|
|
928 |
\fn void QStandardItem::setIcon(const QIcon &icon)
|
|
|
929 |
|
|
|
930 |
Sets the item's icon to the \a icon specified.
|
|
|
931 |
*/
|
|
|
932 |
|
|
|
933 |
/*!
|
|
|
934 |
\fn QString QStandardItem::statusTip() const
|
|
|
935 |
|
|
|
936 |
Returns the item's status tip.
|
|
|
937 |
|
|
|
938 |
\sa setStatusTip(), toolTip(), whatsThis()
|
|
|
939 |
*/
|
|
|
940 |
|
|
|
941 |
/*!
|
|
|
942 |
\fn void QStandardItem::setStatusTip(const QString &statusTip)
|
|
|
943 |
|
|
|
944 |
Sets the item's status tip to the string specified by \a statusTip.
|
|
|
945 |
|
|
|
946 |
\sa statusTip(), setToolTip(), setWhatsThis()
|
|
|
947 |
*/
|
|
|
948 |
|
|
|
949 |
/*!
|
|
|
950 |
\fn QString QStandardItem::toolTip() const
|
|
|
951 |
|
|
|
952 |
Returns the item's tooltip.
|
|
|
953 |
|
|
|
954 |
\sa setToolTip(), statusTip(), whatsThis()
|
|
|
955 |
*/
|
|
|
956 |
|
|
|
957 |
/*!
|
|
|
958 |
\fn void QStandardItem::setToolTip(const QString &toolTip)
|
|
|
959 |
|
|
|
960 |
Sets the item's tooltip to the string specified by \a toolTip.
|
|
|
961 |
|
|
|
962 |
\sa toolTip(), setStatusTip(), setWhatsThis()
|
|
|
963 |
*/
|
|
|
964 |
|
|
|
965 |
/*!
|
|
|
966 |
\fn QString QStandardItem::whatsThis() const
|
|
|
967 |
|
|
|
968 |
Returns the item's "What's This?" help.
|
|
|
969 |
|
|
|
970 |
\sa setWhatsThis(), toolTip(), statusTip()
|
|
|
971 |
*/
|
|
|
972 |
|
|
|
973 |
/*!
|
|
|
974 |
\fn void QStandardItem::setWhatsThis(const QString &whatsThis)
|
|
|
975 |
|
|
|
976 |
Sets the item's "What's This?" help to the string specified by \a whatsThis.
|
|
|
977 |
|
|
|
978 |
\sa whatsThis(), setStatusTip(), setToolTip()
|
|
|
979 |
*/
|
|
|
980 |
|
|
|
981 |
/*!
|
|
|
982 |
\fn QFont QStandardItem::font() const
|
|
|
983 |
|
|
|
984 |
Returns the font used to render the item's text.
|
|
|
985 |
|
|
|
986 |
\sa setFont()
|
|
|
987 |
*/
|
|
|
988 |
|
|
|
989 |
/*!
|
|
|
990 |
\fn void QStandardItem::setFont(const QFont &font)
|
|
|
991 |
|
|
|
992 |
Sets the font used to display the item's text to the given \a font.
|
|
|
993 |
|
|
|
994 |
\sa font() setText() setForeground()
|
|
|
995 |
*/
|
|
|
996 |
|
|
|
997 |
/*!
|
|
|
998 |
\fn QBrush QStandardItem::background() const
|
|
|
999 |
|
|
|
1000 |
Returns the brush used to render the item's background.
|
|
|
1001 |
|
|
|
1002 |
\sa foreground() setBackground()
|
|
|
1003 |
*/
|
|
|
1004 |
|
|
|
1005 |
/*!
|
|
|
1006 |
\fn void QStandardItem::setBackground(const QBrush &brush)
|
|
|
1007 |
|
|
|
1008 |
Sets the item's background brush to the specified \a brush.
|
|
|
1009 |
|
|
|
1010 |
\sa background() setForeground()
|
|
|
1011 |
*/
|
|
|
1012 |
|
|
|
1013 |
/*!
|
|
|
1014 |
\fn QBrush QStandardItem::foreground() const
|
|
|
1015 |
|
|
|
1016 |
Returns the brush used to render the item's foreground (e.g. text).
|
|
|
1017 |
|
|
|
1018 |
\sa setForeground() background()
|
|
|
1019 |
*/
|
|
|
1020 |
|
|
|
1021 |
/*!
|
|
|
1022 |
\fn void QStandardItem::setForeground(const QBrush &brush)
|
|
|
1023 |
|
|
|
1024 |
Sets the brush used to display the item's foreground (e.g. text) to the
|
|
|
1025 |
given \a brush.
|
|
|
1026 |
|
|
|
1027 |
\sa foreground() setBackground() setFont()
|
|
|
1028 |
*/
|
|
|
1029 |
|
|
|
1030 |
/*!
|
|
|
1031 |
\fn int QStandardItem::textAlignment() const
|
|
|
1032 |
|
|
|
1033 |
Returns the text alignment for the item's text.
|
|
|
1034 |
*/
|
|
|
1035 |
|
|
|
1036 |
/*!
|
|
|
1037 |
\fn void QStandardItem::setTextAlignment(Qt::Alignment alignment)
|
|
|
1038 |
|
|
|
1039 |
Sets the text alignment for the item's text to the \a alignment
|
|
|
1040 |
specified.
|
|
|
1041 |
|
|
|
1042 |
\sa textAlignment()
|
|
|
1043 |
*/
|
|
|
1044 |
|
|
|
1045 |
/*!
|
|
|
1046 |
\fn QSize QStandardItem::sizeHint() const
|
|
|
1047 |
|
|
|
1048 |
Returns the size hint set for the item, or an invalid QSize if no
|
|
|
1049 |
size hint has been set.
|
|
|
1050 |
|
|
|
1051 |
If no size hint has been set, the item delegate will compute the
|
|
|
1052 |
size hint based on the item data.
|
|
|
1053 |
|
|
|
1054 |
\sa setSizeHint()
|
|
|
1055 |
*/
|
|
|
1056 |
|
|
|
1057 |
/*!
|
|
|
1058 |
\fn void QStandardItem::setSizeHint(const QSize &size)
|
|
|
1059 |
|
|
|
1060 |
Sets the size hint for the item to be \a size.
|
|
|
1061 |
If no size hint is set, the item delegate will compute the
|
|
|
1062 |
size hint based on the item data.
|
|
|
1063 |
|
|
|
1064 |
\sa sizeHint()
|
|
|
1065 |
*/
|
|
|
1066 |
|
|
|
1067 |
/*!
|
|
|
1068 |
\fn Qt::CheckState QStandardItem::checkState() const
|
|
|
1069 |
|
|
|
1070 |
Returns the checked state of the item.
|
|
|
1071 |
|
|
|
1072 |
\sa setCheckState(), isCheckable()
|
|
|
1073 |
*/
|
|
|
1074 |
|
|
|
1075 |
/*!
|
|
|
1076 |
\fn void QStandardItem::setCheckState(Qt::CheckState state)
|
|
|
1077 |
|
|
|
1078 |
Sets the check state of the item to be \a state.
|
|
|
1079 |
|
|
|
1080 |
\sa checkState(), setCheckable()
|
|
|
1081 |
*/
|
|
|
1082 |
|
|
|
1083 |
/*!
|
|
|
1084 |
\fn QString QStandardItem::accessibleText() const
|
|
|
1085 |
|
|
|
1086 |
Returns the item's accessible text.
|
|
|
1087 |
|
|
|
1088 |
The accessible text is used by assistive technologies (i.e. for users who
|
|
|
1089 |
cannot use conventional means of interaction).
|
|
|
1090 |
|
|
|
1091 |
\sa setAccessibleText(), accessibleDescription()
|
|
|
1092 |
*/
|
|
|
1093 |
|
|
|
1094 |
/*!
|
|
|
1095 |
\fn void QStandardItem::setAccessibleText(const QString &accessibleText)
|
|
|
1096 |
|
|
|
1097 |
Sets the item's accessible text to the string specified by \a accessibleText.
|
|
|
1098 |
|
|
|
1099 |
The accessible text is used by assistive technologies (i.e. for users who
|
|
|
1100 |
cannot use conventional means of interaction).
|
|
|
1101 |
|
|
|
1102 |
\sa accessibleText(), setAccessibleDescription()
|
|
|
1103 |
*/
|
|
|
1104 |
|
|
|
1105 |
/*!
|
|
|
1106 |
\fn QString QStandardItem::accessibleDescription() const
|
|
|
1107 |
|
|
|
1108 |
Returns the item's accessible description.
|
|
|
1109 |
|
|
|
1110 |
The accessible description is used by assistive technologies (i.e. for
|
|
|
1111 |
users who cannot use conventional means of interaction).
|
|
|
1112 |
|
|
|
1113 |
\sa setAccessibleDescription(), accessibleText()
|
|
|
1114 |
*/
|
|
|
1115 |
|
|
|
1116 |
/*!
|
|
|
1117 |
\fn void QStandardItem::setAccessibleDescription(const QString &accessibleDescription)
|
|
|
1118 |
|
|
|
1119 |
Sets the item's accessible description to the string specified by \a
|
|
|
1120 |
accessibleDescription.
|
|
|
1121 |
|
|
|
1122 |
The accessible description is used by assistive technologies (i.e. for
|
|
|
1123 |
users who cannot use conventional means of interaction).
|
|
|
1124 |
|
|
|
1125 |
\sa accessibleDescription(), setAccessibleText()
|
|
|
1126 |
*/
|
|
|
1127 |
|
|
|
1128 |
/*!
|
|
|
1129 |
Sets whether the item is enabled. If \a enabled is true, the item is enabled,
|
|
|
1130 |
meaning that the user can interact with the item; if \a enabled is false, the
|
|
|
1131 |
user cannot interact with the item.
|
|
|
1132 |
|
|
|
1133 |
This flag takes presedence over the other item flags; e.g. if an item is not
|
|
|
1134 |
enabled, it cannot be selected by the user, even if the Qt::ItemIsSelectable
|
|
|
1135 |
flag has been set.
|
|
|
1136 |
|
|
|
1137 |
\sa isEnabled(), Qt::ItemIsEnabled, setFlags()
|
|
|
1138 |
*/
|
|
|
1139 |
void QStandardItem::setEnabled(bool enabled)
|
|
|
1140 |
{
|
|
|
1141 |
Q_D(QStandardItem);
|
|
|
1142 |
d->changeFlags(enabled, Qt::ItemIsEnabled);
|
|
|
1143 |
}
|
|
|
1144 |
|
|
|
1145 |
/*!
|
|
|
1146 |
\fn bool QStandardItem::isEnabled() const
|
|
|
1147 |
|
|
|
1148 |
Returns whether the item is enabled.
|
|
|
1149 |
|
|
|
1150 |
When an item is enabled, the user can interact with it. The possible
|
|
|
1151 |
types of interaction are specified by the other item flags, such as
|
|
|
1152 |
isEditable() and isSelectable().
|
|
|
1153 |
|
|
|
1154 |
The default value is true.
|
|
|
1155 |
|
|
|
1156 |
\sa setEnabled(), flags()
|
|
|
1157 |
*/
|
|
|
1158 |
|
|
|
1159 |
/*!
|
|
|
1160 |
Sets whether the item is editable. If \a editable is true, the item can be
|
|
|
1161 |
edited by the user; otherwise, the user cannot edit the item.
|
|
|
1162 |
|
|
|
1163 |
How the user can edit items in a view is determined by the view's edit
|
|
|
1164 |
triggers; see QAbstractItemView::editTriggers.
|
|
|
1165 |
|
|
|
1166 |
\sa isEditable(), setFlags()
|
|
|
1167 |
*/
|
|
|
1168 |
void QStandardItem::setEditable(bool editable)
|
|
|
1169 |
{
|
|
|
1170 |
Q_D(QStandardItem);
|
|
|
1171 |
d->changeFlags(editable, Qt::ItemIsEditable);
|
|
|
1172 |
}
|
|
|
1173 |
|
|
|
1174 |
/*!
|
|
|
1175 |
\fn bool QStandardItem::isEditable() const
|
|
|
1176 |
|
|
|
1177 |
Returns whether the item can be edited by the user.
|
|
|
1178 |
|
|
|
1179 |
When an item is editable (and enabled), the user can edit the item by
|
|
|
1180 |
invoking one of the view's edit triggers; see
|
|
|
1181 |
QAbstractItemView::editTriggers.
|
|
|
1182 |
|
|
|
1183 |
The default value is true.
|
|
|
1184 |
|
|
|
1185 |
\sa setEditable(), flags()
|
|
|
1186 |
*/
|
|
|
1187 |
|
|
|
1188 |
/*!
|
|
|
1189 |
Sets whether the item is selectable. If \a selectable is true, the item
|
|
|
1190 |
can be selected by the user; otherwise, the user cannot select the item.
|
|
|
1191 |
|
|
|
1192 |
You can control the selection behavior and mode by manipulating their
|
|
|
1193 |
view properties; see QAbstractItemView::selectionMode and
|
|
|
1194 |
QAbstractItemView::selectionBehavior.
|
|
|
1195 |
|
|
|
1196 |
\sa isSelectable(), setFlags()
|
|
|
1197 |
*/
|
|
|
1198 |
void QStandardItem::setSelectable(bool selectable)
|
|
|
1199 |
{
|
|
|
1200 |
Q_D(QStandardItem);
|
|
|
1201 |
d->changeFlags(selectable, Qt::ItemIsSelectable);
|
|
|
1202 |
}
|
|
|
1203 |
|
|
|
1204 |
/*!
|
|
|
1205 |
\fn bool QStandardItem::isSelectable() const
|
|
|
1206 |
|
|
|
1207 |
Returns whether the item is selectable by the user.
|
|
|
1208 |
|
|
|
1209 |
The default value is true.
|
|
|
1210 |
|
|
|
1211 |
\sa setSelectable(), flags()
|
|
|
1212 |
*/
|
|
|
1213 |
|
|
|
1214 |
/*!
|
|
|
1215 |
Sets whether the item is user-checkable. If \a checkable is true, the
|
|
|
1216 |
item can be checked by the user; otherwise, the user cannot check
|
|
|
1217 |
the item.
|
|
|
1218 |
|
|
|
1219 |
The item delegate will render a checkable item with a check box next to the
|
|
|
1220 |
item's text.
|
|
|
1221 |
|
|
|
1222 |
\sa isCheckable(), setCheckState(), setTristate()
|
|
|
1223 |
*/
|
|
|
1224 |
void QStandardItem::setCheckable(bool checkable)
|
|
|
1225 |
{
|
|
|
1226 |
Q_D(QStandardItem);
|
|
|
1227 |
if (checkable && !isCheckable()) {
|
|
|
1228 |
// make sure there's data for the checkstate role
|
|
|
1229 |
if (!data(Qt::CheckStateRole).isValid())
|
|
|
1230 |
setData(Qt::Unchecked, Qt::CheckStateRole);
|
|
|
1231 |
}
|
|
|
1232 |
d->changeFlags(checkable, Qt::ItemIsUserCheckable);
|
|
|
1233 |
}
|
|
|
1234 |
|
|
|
1235 |
/*!
|
|
|
1236 |
\fn bool QStandardItem::isCheckable() const
|
|
|
1237 |
|
|
|
1238 |
Returns whether the item is user-checkable.
|
|
|
1239 |
|
|
|
1240 |
The default value is false.
|
|
|
1241 |
|
|
|
1242 |
\sa setCheckable(), checkState(), isTristate()
|
|
|
1243 |
*/
|
|
|
1244 |
|
|
|
1245 |
/*!
|
|
|
1246 |
Sets whether the item is tristate. If \a tristate is true, the
|
|
|
1247 |
item is checkable with three separate states; otherwise, the item
|
|
|
1248 |
is checkable with two states. (Note that this also requires that
|
|
|
1249 |
the item is checkable; see isCheckable().)
|
|
|
1250 |
|
|
|
1251 |
\sa isTristate(), setCheckable(), setCheckState()
|
|
|
1252 |
*/
|
|
|
1253 |
void QStandardItem::setTristate(bool tristate)
|
|
|
1254 |
{
|
|
|
1255 |
Q_D(QStandardItem);
|
|
|
1256 |
d->changeFlags(tristate, Qt::ItemIsTristate);
|
|
|
1257 |
}
|
|
|
1258 |
|
|
|
1259 |
/*!
|
|
|
1260 |
\fn bool QStandardItem::isTristate() const
|
|
|
1261 |
|
|
|
1262 |
Returns whether the item is tristate; that is, if it's checkable with three
|
|
|
1263 |
separate states.
|
|
|
1264 |
|
|
|
1265 |
The default value is false.
|
|
|
1266 |
|
|
|
1267 |
\sa setTristate(), isCheckable(), checkState()
|
|
|
1268 |
*/
|
|
|
1269 |
|
|
|
1270 |
#ifndef QT_NO_DRAGANDDROP
|
|
|
1271 |
|
|
|
1272 |
/*!
|
|
|
1273 |
Sets whether the item is drag enabled. If \a dragEnabled is true, the item
|
|
|
1274 |
can be dragged by the user; otherwise, the user cannot drag the item.
|
|
|
1275 |
|
|
|
1276 |
Note that you also need to ensure that item dragging is enabled in the view;
|
|
|
1277 |
see QAbstractItemView::dragEnabled.
|
|
|
1278 |
|
|
|
1279 |
\sa isDragEnabled(), setDropEnabled(), setFlags()
|
|
|
1280 |
*/
|
|
|
1281 |
void QStandardItem::setDragEnabled(bool dragEnabled)
|
|
|
1282 |
{
|
|
|
1283 |
Q_D(QStandardItem);
|
|
|
1284 |
d->changeFlags(dragEnabled, Qt::ItemIsDragEnabled);
|
|
|
1285 |
}
|
|
|
1286 |
|
|
|
1287 |
/*!
|
|
|
1288 |
\fn bool QStandardItem::isDragEnabled() const
|
|
|
1289 |
|
|
|
1290 |
Returns whether the item is drag enabled. An item that is drag enabled can
|
|
|
1291 |
be dragged by the user.
|
|
|
1292 |
|
|
|
1293 |
The default value is true.
|
|
|
1294 |
|
|
|
1295 |
Note that item dragging must be enabled in the view for dragging to work;
|
|
|
1296 |
see QAbstractItemView::dragEnabled.
|
|
|
1297 |
|
|
|
1298 |
\sa setDragEnabled(), isDropEnabled(), flags()
|
|
|
1299 |
*/
|
|
|
1300 |
|
|
|
1301 |
/*!
|
|
|
1302 |
Sets whether the item is drop enabled. If \a dropEnabled is true, the item
|
|
|
1303 |
can be used as a drop target; otherwise, it cannot.
|
|
|
1304 |
|
|
|
1305 |
Note that you also need to ensure that drops are enabled in the view; see
|
|
|
1306 |
QWidget::acceptDrops(); and that the model supports the desired drop actions;
|
|
|
1307 |
see QAbstractItemModel::supportedDropActions().
|
|
|
1308 |
|
|
|
1309 |
\sa isDropEnabled(), setDragEnabled(), setFlags()
|
|
|
1310 |
*/
|
|
|
1311 |
void QStandardItem::setDropEnabled(bool dropEnabled)
|
|
|
1312 |
{
|
|
|
1313 |
Q_D(QStandardItem);
|
|
|
1314 |
d->changeFlags(dropEnabled, Qt::ItemIsDropEnabled);
|
|
|
1315 |
}
|
|
|
1316 |
|
|
|
1317 |
/*!
|
|
|
1318 |
\fn bool QStandardItem::isDropEnabled() const
|
|
|
1319 |
|
|
|
1320 |
Returns whether the item is drop enabled. When an item is drop enabled, it
|
|
|
1321 |
can be used as a drop target.
|
|
|
1322 |
|
|
|
1323 |
The default value is true.
|
|
|
1324 |
|
|
|
1325 |
\sa setDropEnabled(), isDragEnabled(), flags()
|
|
|
1326 |
*/
|
|
|
1327 |
|
|
|
1328 |
#endif // QT_NO_DRAGANDDROP
|
|
|
1329 |
|
|
|
1330 |
/*!
|
|
|
1331 |
Returns the row where the item is located in its parent's child table, or
|
|
|
1332 |
-1 if the item has no parent.
|
|
|
1333 |
|
|
|
1334 |
\sa column(), parent()
|
|
|
1335 |
*/
|
|
|
1336 |
int QStandardItem::row() const
|
|
|
1337 |
{
|
|
|
1338 |
Q_D(const QStandardItem);
|
|
|
1339 |
QPair<int, int> pos = d->position();
|
|
|
1340 |
return pos.first;
|
|
|
1341 |
}
|
|
|
1342 |
|
|
|
1343 |
/*!
|
|
|
1344 |
Returns the column where the item is located in its parent's child table,
|
|
|
1345 |
or -1 if the item has no parent.
|
|
|
1346 |
|
|
|
1347 |
\sa row(), parent()
|
|
|
1348 |
*/
|
|
|
1349 |
int QStandardItem::column() const
|
|
|
1350 |
{
|
|
|
1351 |
Q_D(const QStandardItem);
|
|
|
1352 |
QPair<int, int> pos = d->position();
|
|
|
1353 |
return pos.second;
|
|
|
1354 |
}
|
|
|
1355 |
|
|
|
1356 |
/*!
|
|
|
1357 |
Returns the QModelIndex associated with this item.
|
|
|
1358 |
|
|
|
1359 |
When you need to invoke item functionality in a QModelIndex-based API (e.g.
|
|
|
1360 |
QAbstractItemView), you can call this function to obtain an index that
|
|
|
1361 |
corresponds to the item's location in the model.
|
|
|
1362 |
|
|
|
1363 |
If the item is not associated with a model, an invalid QModelIndex is
|
|
|
1364 |
returned.
|
|
|
1365 |
|
|
|
1366 |
\sa model(), QStandardItemModel::itemFromIndex()
|
|
|
1367 |
*/
|
|
|
1368 |
QModelIndex QStandardItem::index() const
|
|
|
1369 |
{
|
|
|
1370 |
Q_D(const QStandardItem);
|
|
|
1371 |
return d->model ? d->model->indexFromItem(this) : QModelIndex();
|
|
|
1372 |
}
|
|
|
1373 |
|
|
|
1374 |
/*!
|
|
|
1375 |
Returns the QStandardItemModel that this item belongs to.
|
|
|
1376 |
|
|
|
1377 |
If the item is not a child of another item that belongs to the model, this
|
|
|
1378 |
function returns 0.
|
|
|
1379 |
|
|
|
1380 |
\sa index()
|
|
|
1381 |
*/
|
|
|
1382 |
QStandardItemModel *QStandardItem::model() const
|
|
|
1383 |
{
|
|
|
1384 |
Q_D(const QStandardItem);
|
|
|
1385 |
return d->model;
|
|
|
1386 |
}
|
|
|
1387 |
|
|
|
1388 |
/*!
|
|
|
1389 |
Sets the number of child item rows to \a rows. If this is less than
|
|
|
1390 |
rowCount(), the data in the unwanted rows is discarded.
|
|
|
1391 |
|
|
|
1392 |
\sa rowCount(), setColumnCount()
|
|
|
1393 |
*/
|
|
|
1394 |
void QStandardItem::setRowCount(int rows)
|
|
|
1395 |
{
|
|
|
1396 |
int rc = rowCount();
|
|
|
1397 |
if (rc == rows)
|
|
|
1398 |
return;
|
|
|
1399 |
if (rc < rows)
|
|
|
1400 |
insertRows(qMax(rc, 0), rows - rc);
|
|
|
1401 |
else
|
|
|
1402 |
removeRows(qMax(rows, 0), rc - rows);
|
|
|
1403 |
}
|
|
|
1404 |
|
|
|
1405 |
/*!
|
|
|
1406 |
Returns the number of child item rows that the item has.
|
|
|
1407 |
|
|
|
1408 |
\sa setRowCount(), columnCount()
|
|
|
1409 |
*/
|
|
|
1410 |
int QStandardItem::rowCount() const
|
|
|
1411 |
{
|
|
|
1412 |
Q_D(const QStandardItem);
|
|
|
1413 |
return d->rowCount();
|
|
|
1414 |
}
|
|
|
1415 |
|
|
|
1416 |
/*!
|
|
|
1417 |
Sets the number of child item columns to \a columns. If this is less than
|
|
|
1418 |
columnCount(), the data in the unwanted columns is discarded.
|
|
|
1419 |
|
|
|
1420 |
\sa columnCount(), setRowCount()
|
|
|
1421 |
*/
|
|
|
1422 |
void QStandardItem::setColumnCount(int columns)
|
|
|
1423 |
{
|
|
|
1424 |
int cc = columnCount();
|
|
|
1425 |
if (cc == columns)
|
|
|
1426 |
return;
|
|
|
1427 |
if (cc < columns)
|
|
|
1428 |
insertColumns(qMax(cc, 0), columns - cc);
|
|
|
1429 |
else
|
|
|
1430 |
removeColumns(qMax(columns, 0), cc - columns);
|
|
|
1431 |
}
|
|
|
1432 |
|
|
|
1433 |
/*!
|
|
|
1434 |
Returns the number of child item columns that the item has.
|
|
|
1435 |
|
|
|
1436 |
\sa setColumnCount(), rowCount()
|
|
|
1437 |
*/
|
|
|
1438 |
int QStandardItem::columnCount() const
|
|
|
1439 |
{
|
|
|
1440 |
Q_D(const QStandardItem);
|
|
|
1441 |
return d->columnCount();
|
|
|
1442 |
}
|
|
|
1443 |
|
|
|
1444 |
/*!
|
|
|
1445 |
Inserts a row at \a row containing \a items. If necessary, the column
|
|
|
1446 |
count is increased to the size of \a items.
|
|
|
1447 |
|
|
|
1448 |
\sa insertRows(), insertColumn()
|
|
|
1449 |
*/
|
|
|
1450 |
void QStandardItem::insertRow(int row, const QList<QStandardItem*> &items)
|
|
|
1451 |
{
|
|
|
1452 |
Q_D(QStandardItem);
|
|
|
1453 |
if (row < 0)
|
|
|
1454 |
return;
|
|
|
1455 |
if (columnCount() < items.count())
|
|
|
1456 |
setColumnCount(items.count());
|
|
|
1457 |
d->insertRows(row, 1, items);
|
|
|
1458 |
}
|
|
|
1459 |
|
|
|
1460 |
/*!
|
|
|
1461 |
Inserts \a items at \a row. The column count wont be changed.
|
|
|
1462 |
|
|
|
1463 |
\sa insertRow(), insertColumn()
|
|
|
1464 |
*/
|
|
|
1465 |
void QStandardItem::insertRows(int row, const QList<QStandardItem*> &items)
|
|
|
1466 |
{
|
|
|
1467 |
Q_D(QStandardItem);
|
|
|
1468 |
if (row < 0)
|
|
|
1469 |
return;
|
|
|
1470 |
d->insertRows(row, items);
|
|
|
1471 |
}
|
|
|
1472 |
|
|
|
1473 |
/*!
|
|
|
1474 |
Inserts a column at \a column containing \a items. If necessary,
|
|
|
1475 |
the row count is increased to the size of \a items.
|
|
|
1476 |
|
|
|
1477 |
\sa insertColumns(), insertRow()
|
|
|
1478 |
*/
|
|
|
1479 |
void QStandardItem::insertColumn(int column, const QList<QStandardItem*> &items)
|
|
|
1480 |
{
|
|
|
1481 |
Q_D(QStandardItem);
|
|
|
1482 |
if (column < 0)
|
|
|
1483 |
return;
|
|
|
1484 |
if (rowCount() < items.count())
|
|
|
1485 |
setRowCount(items.count());
|
|
|
1486 |
d->insertColumns(column, 1, items);
|
|
|
1487 |
}
|
|
|
1488 |
|
|
|
1489 |
/*!
|
|
|
1490 |
Inserts \a count rows of child items at row \a row.
|
|
|
1491 |
|
|
|
1492 |
\sa insertRow(), insertColumns()
|
|
|
1493 |
*/
|
|
|
1494 |
void QStandardItem::insertRows(int row, int count)
|
|
|
1495 |
{
|
|
|
1496 |
Q_D(QStandardItem);
|
|
|
1497 |
if (rowCount() < row) {
|
|
|
1498 |
count += row - rowCount();
|
|
|
1499 |
row = rowCount();
|
|
|
1500 |
}
|
|
|
1501 |
d->insertRows(row, count, QList<QStandardItem*>());
|
|
|
1502 |
}
|
|
|
1503 |
|
|
|
1504 |
/*!
|
|
|
1505 |
Inserts \a count columns of child items at column \a column.
|
|
|
1506 |
|
|
|
1507 |
\sa insertColumn(), insertRows()
|
|
|
1508 |
*/
|
|
|
1509 |
void QStandardItem::insertColumns(int column, int count)
|
|
|
1510 |
{
|
|
|
1511 |
Q_D(QStandardItem);
|
|
|
1512 |
if (columnCount() < column) {
|
|
|
1513 |
count += column - columnCount();
|
|
|
1514 |
column = columnCount();
|
|
|
1515 |
}
|
|
|
1516 |
d->insertColumns(column, count, QList<QStandardItem*>());
|
|
|
1517 |
}
|
|
|
1518 |
|
|
|
1519 |
/*!
|
|
|
1520 |
\fn void QStandardItem::appendRow(const QList<QStandardItem*> &items)
|
|
|
1521 |
|
|
|
1522 |
Appends a row containing \a items. If necessary, the column count is
|
|
|
1523 |
increased to the size of \a items.
|
|
|
1524 |
|
|
|
1525 |
\sa insertRow()
|
|
|
1526 |
*/
|
|
|
1527 |
|
|
|
1528 |
/*!
|
|
|
1529 |
\fn void QStandardItem::appendRows(const QList<QStandardItem*> &items)
|
|
|
1530 |
|
|
|
1531 |
Appends rows containing \a items. The column count will not change.
|
|
|
1532 |
|
|
|
1533 |
\sa insertRow()
|
|
|
1534 |
*/
|
|
|
1535 |
|
|
|
1536 |
/*!
|
|
|
1537 |
\fn void QStandardItem::appendColumn(const QList<QStandardItem*> &items)
|
|
|
1538 |
|
|
|
1539 |
Appends a column containing \a items. If necessary, the row count is
|
|
|
1540 |
increased to the size of \a items.
|
|
|
1541 |
|
|
|
1542 |
\sa insertColumn()
|
|
|
1543 |
*/
|
|
|
1544 |
|
|
|
1545 |
/*!
|
|
|
1546 |
\fn bool QStandardItemModel::insertRow(int row, const QModelIndex &parent)
|
|
|
1547 |
|
|
|
1548 |
Inserts a single row before the given \a row in the child items of the
|
|
|
1549 |
\a parent specified. Returns true if the row is inserted; otherwise
|
|
|
1550 |
returns false.
|
|
|
1551 |
|
|
|
1552 |
\sa insertRows(), insertColumn(), removeRow()
|
|
|
1553 |
*/
|
|
|
1554 |
|
|
|
1555 |
/*!
|
|
|
1556 |
\fn bool QStandardItemModel::insertColumn(int column, const QModelIndex &parent)
|
|
|
1557 |
|
|
|
1558 |
Inserts a single column before the given \a column in the child items of
|
|
|
1559 |
the \a parent specified. Returns true if the column is inserted; otherwise
|
|
|
1560 |
returns false.
|
|
|
1561 |
|
|
|
1562 |
\sa insertColumns(), insertRow(), removeColumn()
|
|
|
1563 |
*/
|
|
|
1564 |
|
|
|
1565 |
/*!
|
|
|
1566 |
\fn QStandardItem::insertRow(int row, QStandardItem *item)
|
|
|
1567 |
\overload
|
|
|
1568 |
|
|
|
1569 |
Inserts a row at \a row containing \a item.
|
|
|
1570 |
|
|
|
1571 |
When building a list or a tree that has only one column, this function
|
|
|
1572 |
provides a convenient way to insert a single new item.
|
|
|
1573 |
*/
|
|
|
1574 |
|
|
|
1575 |
/*!
|
|
|
1576 |
\fn QStandardItem::appendRow(QStandardItem *item)
|
|
|
1577 |
\overload
|
|
|
1578 |
|
|
|
1579 |
Appends a row containing \a item.
|
|
|
1580 |
|
|
|
1581 |
When building a list or a tree that has only one column, this function
|
|
|
1582 |
provides a convenient way to append a single new item.
|
|
|
1583 |
*/
|
|
|
1584 |
|
|
|
1585 |
/*!
|
|
|
1586 |
Removes the given \a row. The items that were in the row are deleted.
|
|
|
1587 |
|
|
|
1588 |
\sa takeRow(), removeRows(), removeColumn()
|
|
|
1589 |
*/
|
|
|
1590 |
void QStandardItem::removeRow(int row)
|
|
|
1591 |
{
|
|
|
1592 |
removeRows(row, 1);
|
|
|
1593 |
}
|
|
|
1594 |
|
|
|
1595 |
/*!
|
|
|
1596 |
Removes the given \a column. The items that were in the
|
|
|
1597 |
column are deleted.
|
|
|
1598 |
|
|
|
1599 |
\sa takeColumn(), removeColumns(), removeRow()
|
|
|
1600 |
*/
|
|
|
1601 |
void QStandardItem::removeColumn(int column)
|
|
|
1602 |
{
|
|
|
1603 |
removeColumns(column, 1);
|
|
|
1604 |
}
|
|
|
1605 |
|
|
|
1606 |
/*!
|
|
|
1607 |
Removes \a count rows at row \a row. The items that were in those rows are
|
|
|
1608 |
deleted.
|
|
|
1609 |
|
|
|
1610 |
\sa removeRow(), removeColumn()
|
|
|
1611 |
*/
|
|
|
1612 |
void QStandardItem::removeRows(int row, int count)
|
|
|
1613 |
{
|
|
|
1614 |
Q_D(QStandardItem);
|
|
|
1615 |
if ((count < 1) || (row < 0) || ((row + count) > rowCount()))
|
|
|
1616 |
return;
|
|
|
1617 |
if (d->model)
|
|
|
1618 |
d->model->d_func()->rowsAboutToBeRemoved(this, row, row + count - 1);
|
|
|
1619 |
int i = d->childIndex(row, 0);
|
|
|
1620 |
int n = count * d->columnCount();
|
|
|
1621 |
for (int j = i; j < n+i; ++j) {
|
|
|
1622 |
QStandardItem *oldItem = d->children.at(j);
|
|
|
1623 |
if (oldItem)
|
|
|
1624 |
oldItem->d_func()->setModel(0);
|
|
|
1625 |
delete oldItem;
|
|
|
1626 |
}
|
|
|
1627 |
d->children.remove(qMax(i, 0), n);
|
|
|
1628 |
d->rows -= count;
|
|
|
1629 |
if (d->model)
|
|
|
1630 |
d->model->d_func()->rowsRemoved(this, row, count);
|
|
|
1631 |
}
|
|
|
1632 |
|
|
|
1633 |
/*!
|
|
|
1634 |
Removes \a count columns at column \a column. The items that were in those
|
|
|
1635 |
columns are deleted.
|
|
|
1636 |
|
|
|
1637 |
\sa removeColumn(), removeRows()
|
|
|
1638 |
*/
|
|
|
1639 |
void QStandardItem::removeColumns(int column, int count)
|
|
|
1640 |
{
|
|
|
1641 |
Q_D(QStandardItem);
|
|
|
1642 |
if ((count < 1) || (column < 0) || ((column + count) > columnCount()))
|
|
|
1643 |
return;
|
|
|
1644 |
if (d->model)
|
|
|
1645 |
d->model->d_func()->columnsAboutToBeRemoved(this, column, column + count - 1);
|
|
|
1646 |
for (int row = d->rowCount() - 1; row >= 0; --row) {
|
|
|
1647 |
int i = d->childIndex(row, column);
|
|
|
1648 |
for (int j=i; j<i+count; ++j) {
|
|
|
1649 |
QStandardItem *oldItem = d->children.at(j);
|
|
|
1650 |
if (oldItem)
|
|
|
1651 |
oldItem->d_func()->setModel(0);
|
|
|
1652 |
delete oldItem;
|
|
|
1653 |
}
|
|
|
1654 |
d->children.remove(i, count);
|
|
|
1655 |
}
|
|
|
1656 |
d->columns -= count;
|
|
|
1657 |
if (d->model)
|
|
|
1658 |
d->model->d_func()->columnsRemoved(this, column, count);
|
|
|
1659 |
}
|
|
|
1660 |
|
|
|
1661 |
/*!
|
|
|
1662 |
Returns true if this item has any children; otherwise returns false.
|
|
|
1663 |
|
|
|
1664 |
\sa rowCount(), columnCount(), child()
|
|
|
1665 |
*/
|
|
|
1666 |
bool QStandardItem::hasChildren() const
|
|
|
1667 |
{
|
|
|
1668 |
return (rowCount() > 0) && (columnCount() > 0);
|
|
|
1669 |
}
|
|
|
1670 |
|
|
|
1671 |
/*!
|
|
|
1672 |
Sets the child item at (\a row, \a column) to \a item. This item (the parent
|
|
|
1673 |
item) takes ownership of \a item. If necessary, the row count and column
|
|
|
1674 |
count are increased to fit the item.
|
|
|
1675 |
|
|
|
1676 |
\sa child()
|
|
|
1677 |
*/
|
|
|
1678 |
void QStandardItem::setChild(int row, int column, QStandardItem *item)
|
|
|
1679 |
{
|
|
|
1680 |
Q_D(QStandardItem);
|
|
|
1681 |
d->setChild(row, column, item, true);
|
|
|
1682 |
}
|
|
|
1683 |
|
|
|
1684 |
/*!
|
|
|
1685 |
\fn QStandardItem::setChild(int row, QStandardItem *item)
|
|
|
1686 |
\overload
|
|
|
1687 |
|
|
|
1688 |
Sets the child at \a row to \a item.
|
|
|
1689 |
*/
|
|
|
1690 |
|
|
|
1691 |
/*!
|
|
|
1692 |
Returns the child item at (\a row, \a column) if one has been set; otherwise
|
|
|
1693 |
returns 0.
|
|
|
1694 |
|
|
|
1695 |
\sa setChild(), takeChild(), parent()
|
|
|
1696 |
*/
|
|
|
1697 |
QStandardItem *QStandardItem::child(int row, int column) const
|
|
|
1698 |
{
|
|
|
1699 |
Q_D(const QStandardItem);
|
|
|
1700 |
int index = d->childIndex(row, column);
|
|
|
1701 |
if (index == -1)
|
|
|
1702 |
return 0;
|
|
|
1703 |
return d->children.at(index);
|
|
|
1704 |
}
|
|
|
1705 |
|
|
|
1706 |
/*!
|
|
|
1707 |
Removes the child item at (\a row, \a column) without deleting it, and returns
|
|
|
1708 |
a pointer to the item. If there was no child at the given location, then
|
|
|
1709 |
this function returns 0.
|
|
|
1710 |
|
|
|
1711 |
Note that this function, unlike takeRow() and takeColumn(), does not affect
|
|
|
1712 |
the dimensions of the child table.
|
|
|
1713 |
|
|
|
1714 |
\sa child(), takeRow(), takeColumn()
|
|
|
1715 |
*/
|
|
|
1716 |
QStandardItem *QStandardItem::takeChild(int row, int column)
|
|
|
1717 |
{
|
|
|
1718 |
Q_D(QStandardItem);
|
|
|
1719 |
QStandardItem *item = 0;
|
|
|
1720 |
int index = d->childIndex(row, column);
|
|
|
1721 |
if (index != -1) {
|
|
|
1722 |
item = d->children.at(index);
|
|
|
1723 |
if (item)
|
|
|
1724 |
item->d_func()->setParentAndModel(0, 0);
|
|
|
1725 |
d->children.replace(index, 0);
|
|
|
1726 |
}
|
|
|
1727 |
return item;
|
|
|
1728 |
}
|
|
|
1729 |
|
|
|
1730 |
/*!
|
|
|
1731 |
Removes \a row without deleting the row items, and returns a list of
|
|
|
1732 |
pointers to the removed items. For items in the row that have not been
|
|
|
1733 |
set, the corresponding pointers in the list will be 0.
|
|
|
1734 |
|
|
|
1735 |
\sa removeRow(), insertRow(), takeColumn()
|
|
|
1736 |
*/
|
|
|
1737 |
QList<QStandardItem*> QStandardItem::takeRow(int row)
|
|
|
1738 |
{
|
|
|
1739 |
Q_D(QStandardItem);
|
|
|
1740 |
if ((row < 0) || (row >= rowCount()))
|
|
|
1741 |
return QList<QStandardItem*>();
|
|
|
1742 |
if (d->model)
|
|
|
1743 |
d->model->d_func()->rowsAboutToBeRemoved(this, row, row);
|
|
|
1744 |
QList<QStandardItem*> items;
|
|
|
1745 |
int index = d->childIndex(row, 0); // Will return -1 if there are no columns
|
|
|
1746 |
if (index != -1) {
|
|
|
1747 |
int col_count = d->columnCount();
|
|
|
1748 |
for (int column = 0; column < col_count; ++column) {
|
|
|
1749 |
QStandardItem *ch = d->children.at(index + column);
|
|
|
1750 |
if (ch)
|
|
|
1751 |
ch->d_func()->setParentAndModel(0, 0);
|
|
|
1752 |
items.append(ch);
|
|
|
1753 |
}
|
|
|
1754 |
d->children.remove(index, col_count);
|
|
|
1755 |
}
|
|
|
1756 |
d->rows--;
|
|
|
1757 |
if (d->model)
|
|
|
1758 |
d->model->d_func()->rowsRemoved(this, row, 1);
|
|
|
1759 |
return items;
|
|
|
1760 |
}
|
|
|
1761 |
|
|
|
1762 |
/*!
|
|
|
1763 |
Removes \a column without deleting the column items, and returns a list of
|
|
|
1764 |
pointers to the removed items. For items in the column that have not been
|
|
|
1765 |
set, the corresponding pointers in the list will be 0.
|
|
|
1766 |
|
|
|
1767 |
\sa removeColumn(), insertColumn(), takeRow()
|
|
|
1768 |
*/
|
|
|
1769 |
QList<QStandardItem*> QStandardItem::takeColumn(int column)
|
|
|
1770 |
{
|
|
|
1771 |
Q_D(QStandardItem);
|
|
|
1772 |
if ((column < 0) || (column >= columnCount()))
|
|
|
1773 |
return QList<QStandardItem*>();
|
|
|
1774 |
if (d->model)
|
|
|
1775 |
d->model->d_func()->columnsAboutToBeRemoved(this, column, column);
|
|
|
1776 |
QList<QStandardItem*> items;
|
|
|
1777 |
|
|
|
1778 |
for (int row = d->rowCount() - 1; row >= 0; --row) {
|
|
|
1779 |
int index = d->childIndex(row, column);
|
|
|
1780 |
QStandardItem *ch = d->children.at(index);
|
|
|
1781 |
if (ch)
|
|
|
1782 |
ch->d_func()->setParentAndModel(0, 0);
|
|
|
1783 |
d->children.remove(index);
|
|
|
1784 |
items.prepend(ch);
|
|
|
1785 |
}
|
|
|
1786 |
d->columns--;
|
|
|
1787 |
if (d->model)
|
|
|
1788 |
d->model->d_func()->columnsRemoved(this, column, 1);
|
|
|
1789 |
return items;
|
|
|
1790 |
}
|
|
|
1791 |
|
|
|
1792 |
/*!
|
|
|
1793 |
Returns true if this item is less than \a other; otherwise returns false.
|
|
|
1794 |
|
|
|
1795 |
The default implementation uses the data for the item's sort role (see
|
|
|
1796 |
QStandardItemModel::sortRole) to perform the comparison if the item
|
|
|
1797 |
belongs to a model; otherwise, the data for the item's Qt::DisplayRole
|
|
|
1798 |
(text()) is used to perform the comparison.
|
|
|
1799 |
|
|
|
1800 |
sortChildren() and QStandardItemModel::sort() use this function when
|
|
|
1801 |
sorting items. If you want custom sorting, you can subclass QStandardItem
|
|
|
1802 |
and reimplement this function.
|
|
|
1803 |
*/
|
|
|
1804 |
bool QStandardItem::operator<(const QStandardItem &other) const
|
|
|
1805 |
{
|
|
|
1806 |
const int role = model() ? model()->sortRole() : Qt::DisplayRole;
|
|
|
1807 |
const QVariant l = data(role), r = other.data(role);
|
|
|
1808 |
// this code is copied from QSortFilterProxyModel::lessThan()
|
|
|
1809 |
switch (l.userType()) {
|
|
|
1810 |
case QVariant::Invalid:
|
|
|
1811 |
return (r.type() == QVariant::Invalid);
|
|
|
1812 |
case QVariant::Int:
|
|
|
1813 |
return l.toInt() < r.toInt();
|
|
|
1814 |
case QVariant::UInt:
|
|
|
1815 |
return l.toUInt() < r.toUInt();
|
|
|
1816 |
case QVariant::LongLong:
|
|
|
1817 |
return l.toLongLong() < r.toLongLong();
|
|
|
1818 |
case QVariant::ULongLong:
|
|
|
1819 |
return l.toULongLong() < r.toULongLong();
|
|
|
1820 |
case QMetaType::Float:
|
|
|
1821 |
return l.toFloat() < r.toFloat();
|
|
|
1822 |
case QVariant::Double:
|
|
|
1823 |
return l.toDouble() < r.toDouble();
|
|
|
1824 |
case QVariant::Char:
|
|
|
1825 |
return l.toChar() < r.toChar();
|
|
|
1826 |
case QVariant::Date:
|
|
|
1827 |
return l.toDate() < r.toDate();
|
|
|
1828 |
case QVariant::Time:
|
|
|
1829 |
return l.toTime() < r.toTime();
|
|
|
1830 |
case QVariant::DateTime:
|
|
|
1831 |
return l.toDateTime() < r.toDateTime();
|
|
|
1832 |
case QVariant::String:
|
|
|
1833 |
default:
|
|
|
1834 |
return l.toString().compare(r.toString()) < 0;
|
|
|
1835 |
}
|
|
|
1836 |
}
|
|
|
1837 |
|
|
|
1838 |
/*!
|
|
|
1839 |
Sorts the children of the item using the given \a order, by the values in
|
|
|
1840 |
the given \a column.
|
|
|
1841 |
|
|
|
1842 |
\note This function is recursive, therefore it sorts the children of the
|
|
|
1843 |
item, its grandchildren, etc.
|
|
|
1844 |
|
|
|
1845 |
\sa {operator<()}
|
|
|
1846 |
*/
|
|
|
1847 |
void QStandardItem::sortChildren(int column, Qt::SortOrder order)
|
|
|
1848 |
{
|
|
|
1849 |
Q_D(QStandardItem);
|
|
|
1850 |
if ((column < 0) || (rowCount() == 0))
|
|
|
1851 |
return;
|
|
|
1852 |
if (d->model)
|
|
|
1853 |
emit d->model->layoutAboutToBeChanged();
|
|
|
1854 |
d->sortChildren(column, order);
|
|
|
1855 |
if (d->model)
|
|
|
1856 |
emit d->model->layoutChanged();
|
|
|
1857 |
}
|
|
|
1858 |
|
|
|
1859 |
/*!
|
|
|
1860 |
Returns a copy of this item. The item's children are not copied.
|
|
|
1861 |
|
|
|
1862 |
When subclassing QStandardItem, you can reimplement this function
|
|
|
1863 |
to provide QStandardItemModel with a factory that it can use to
|
|
|
1864 |
create new items on demand.
|
|
|
1865 |
|
|
|
1866 |
\sa QStandardItemModel::setItemPrototype(), operator=()
|
|
|
1867 |
*/
|
|
|
1868 |
QStandardItem *QStandardItem::clone() const
|
|
|
1869 |
{
|
|
|
1870 |
return new QStandardItem(*this);
|
|
|
1871 |
}
|
|
|
1872 |
|
|
|
1873 |
/*!
|
|
|
1874 |
Returns the type of this item. The type is used to distinguish custom
|
|
|
1875 |
items from the base class. When subclassing QStandardItem, you should
|
|
|
1876 |
reimplement this function and return a new value greater than or equal
|
|
|
1877 |
to \l UserType.
|
|
|
1878 |
|
|
|
1879 |
\sa QStandardItem::Type
|
|
|
1880 |
*/
|
|
|
1881 |
int QStandardItem::type() const
|
|
|
1882 |
{
|
|
|
1883 |
return Type;
|
|
|
1884 |
}
|
|
|
1885 |
|
|
|
1886 |
#ifndef QT_NO_DATASTREAM
|
|
|
1887 |
|
|
|
1888 |
/*!
|
|
|
1889 |
Reads the item from stream \a in. Only the data and flags of the item are
|
|
|
1890 |
read, not the child items.
|
|
|
1891 |
|
|
|
1892 |
\sa write()
|
|
|
1893 |
*/
|
|
|
1894 |
void QStandardItem::read(QDataStream &in)
|
|
|
1895 |
{
|
|
|
1896 |
Q_D(QStandardItem);
|
|
|
1897 |
in >> d->values;
|
|
|
1898 |
qint32 flags;
|
|
|
1899 |
in >> flags;
|
|
|
1900 |
setFlags(Qt::ItemFlags(flags));
|
|
|
1901 |
}
|
|
|
1902 |
|
|
|
1903 |
/*!
|
|
|
1904 |
Writes the item to stream \a out. Only the data and flags of the item
|
|
|
1905 |
are written, not the child items.
|
|
|
1906 |
|
|
|
1907 |
\sa read()
|
|
|
1908 |
*/
|
|
|
1909 |
void QStandardItem::write(QDataStream &out) const
|
|
|
1910 |
{
|
|
|
1911 |
Q_D(const QStandardItem);
|
|
|
1912 |
out << d->values;
|
|
|
1913 |
out << flags();
|
|
|
1914 |
}
|
|
|
1915 |
|
|
|
1916 |
/*!
|
|
|
1917 |
\relates QStandardItem
|
|
|
1918 |
\since 4.2
|
|
|
1919 |
|
|
|
1920 |
Reads a QStandardItem from stream \a in into \a item.
|
|
|
1921 |
|
|
|
1922 |
This operator uses QStandardItem::read().
|
|
|
1923 |
|
|
|
1924 |
\sa {Format of the QDataStream Operators}
|
|
|
1925 |
*/
|
|
|
1926 |
QDataStream &operator>>(QDataStream &in, QStandardItem &item)
|
|
|
1927 |
{
|
|
|
1928 |
item.read(in);
|
|
|
1929 |
return in;
|
|
|
1930 |
}
|
|
|
1931 |
|
|
|
1932 |
/*!
|
|
|
1933 |
\relates QStandardItem
|
|
|
1934 |
\since 4.2
|
|
|
1935 |
|
|
|
1936 |
Writes the QStandardItem \a item to stream \a out.
|
|
|
1937 |
|
|
|
1938 |
This operator uses QStandardItem::write().
|
|
|
1939 |
|
|
|
1940 |
\sa {Format of the QDataStream Operators}
|
|
|
1941 |
*/
|
|
|
1942 |
QDataStream &operator<<(QDataStream &out, const QStandardItem &item)
|
|
|
1943 |
{
|
|
|
1944 |
item.write(out);
|
|
|
1945 |
return out;
|
|
|
1946 |
}
|
|
|
1947 |
|
|
|
1948 |
#endif // QT_NO_DATASTREAM
|
|
|
1949 |
|
|
|
1950 |
/*!
|
|
|
1951 |
\class QStandardItemModel
|
|
|
1952 |
\brief The QStandardItemModel class provides a generic model for storing custom data.
|
|
|
1953 |
\ingroup model-view
|
|
|
1954 |
|
|
|
1955 |
QStandardItemModel can be used as a repository for standard Qt
|
|
|
1956 |
data types. It is one of the \l {Model/View Classes} and is part
|
|
|
1957 |
of Qt's \l {Model/View Programming}{model/view} framework.
|
|
|
1958 |
|
|
|
1959 |
QStandardItemModel provides a classic item-based approach to working with
|
|
|
1960 |
the model. The items in a QStandardItemModel are provided by
|
|
|
1961 |
QStandardItem.
|
|
|
1962 |
|
|
|
1963 |
QStandardItemModel implements the QAbstractItemModel interface, which
|
|
|
1964 |
means that the model can be used to provide data in any view that supports
|
|
|
1965 |
that interface (such as QListView, QTableView and QTreeView, and your own
|
|
|
1966 |
custom views). For performance and flexibility, you may want to subclass
|
|
|
1967 |
QAbstractItemModel to provide support for different kinds of data
|
|
|
1968 |
repositories. For example, the QDirModel provides a model interface to the
|
|
|
1969 |
underlying file system.
|
|
|
1970 |
|
|
|
1971 |
When you want a list or tree, you typically create an empty
|
|
|
1972 |
QStandardItemModel and use appendRow() to add items to the model, and
|
|
|
1973 |
item() to access an item. If your model represents a table, you typically
|
|
|
1974 |
pass the dimensions of the table to the QStandardItemModel constructor and
|
|
|
1975 |
use setItem() to position items into the table. You can also use setRowCount()
|
|
|
1976 |
and setColumnCount() to alter the dimensions of the model. To insert items,
|
|
|
1977 |
use insertRow() or insertColumn(), and to remove items, use removeRow() or
|
|
|
1978 |
removeColumn().
|
|
|
1979 |
|
|
|
1980 |
You can set the header labels of your model with setHorizontalHeaderLabels()
|
|
|
1981 |
and setVerticalHeaderLabels().
|
|
|
1982 |
|
|
|
1983 |
You can search for items in the model with findItems(), and sort the model by
|
|
|
1984 |
calling sort().
|
|
|
1985 |
|
|
|
1986 |
Call clear() to remove all items from the model.
|
|
|
1987 |
|
|
|
1988 |
An example usage of QStandardItemModel to create a table:
|
|
|
1989 |
|
|
|
1990 |
\snippet doc/src/snippets/code/src_gui_itemviews_qstandarditemmodel.cpp 0
|
|
|
1991 |
|
|
|
1992 |
An example usage of QStandardItemModel to create a tree:
|
|
|
1993 |
|
|
|
1994 |
\snippet doc/src/snippets/code/src_gui_itemviews_qstandarditemmodel.cpp 1
|
|
|
1995 |
|
|
|
1996 |
After setting the model on a view, you typically want to react to user
|
|
|
1997 |
actions, such as an item being clicked. Since a QAbstractItemView provides
|
|
|
1998 |
QModelIndex-based signals and functions, you need a way to obtain the
|
|
|
1999 |
QStandardItem that corresponds to a given QModelIndex, and vice
|
|
|
2000 |
versa. itemFromIndex() and indexFromItem() provide this mapping. Typical
|
|
|
2001 |
usage of itemFromIndex() includes obtaining the item at the current index
|
|
|
2002 |
in a view, and obtaining the item that corresponds to an index carried by
|
|
|
2003 |
a QAbstractItemView signal, such as QAbstractItemView::clicked(). First
|
|
|
2004 |
you connect the view's signal to a slot in your class:
|
|
|
2005 |
|
|
|
2006 |
\snippet doc/src/snippets/code/src_gui_itemviews_qstandarditemmodel.cpp 2
|
|
|
2007 |
|
|
|
2008 |
When you receive the signal, you call itemFromIndex() on the given model
|
|
|
2009 |
index to get a pointer to the item:
|
|
|
2010 |
|
|
|
2011 |
\snippet doc/src/snippets/code/src_gui_itemviews_qstandarditemmodel.cpp 3
|
|
|
2012 |
|
|
|
2013 |
Conversely, you must obtain the QModelIndex of an item when you want to
|
|
|
2014 |
invoke a model/view function that takes an index as argument. You can
|
|
|
2015 |
obtain the index either by using the model's indexFromItem() function, or,
|
|
|
2016 |
equivalently, by calling QStandardItem::index():
|
|
|
2017 |
|
|
|
2018 |
\snippet doc/src/snippets/code/src_gui_itemviews_qstandarditemmodel.cpp 4
|
|
|
2019 |
|
|
|
2020 |
You are, of course, not required to use the item-based approach; you could
|
|
|
2021 |
instead rely entirely on the QAbstractItemModel interface when working with
|
|
|
2022 |
the model, or use a combination of the two as appropriate.
|
|
|
2023 |
|
|
|
2024 |
\sa QStandardItem, {Model/View Programming}, QAbstractItemModel,
|
|
|
2025 |
{itemviews/simpletreemodel}{Simple Tree Model example},
|
|
|
2026 |
{Item View Convenience Classes}
|
|
|
2027 |
*/
|
|
|
2028 |
|
|
|
2029 |
/*!
|
|
|
2030 |
\fn void QStandardItemModel::itemChanged(QStandardItem *item)
|
|
|
2031 |
\since 4.2
|
|
|
2032 |
|
|
|
2033 |
This signal is emitted whenever the data of \a item has changed.
|
|
|
2034 |
*/
|
|
|
2035 |
|
|
|
2036 |
/*!
|
|
|
2037 |
Constructs a new item model with the given \a parent.
|
|
|
2038 |
*/
|
|
|
2039 |
QStandardItemModel::QStandardItemModel(QObject *parent)
|
|
|
2040 |
: QAbstractItemModel(*new QStandardItemModelPrivate, parent)
|
|
|
2041 |
{
|
|
|
2042 |
Q_D(QStandardItemModel);
|
|
|
2043 |
d->init();
|
|
|
2044 |
d->root->d_func()->setModel(this);
|
|
|
2045 |
}
|
|
|
2046 |
|
|
|
2047 |
/*!
|
|
|
2048 |
Constructs a new item model that initially has \a rows rows and \a columns
|
|
|
2049 |
columns, and that has the given \a parent.
|
|
|
2050 |
*/
|
|
|
2051 |
QStandardItemModel::QStandardItemModel(int rows, int columns, QObject *parent)
|
|
|
2052 |
: QAbstractItemModel(*new QStandardItemModelPrivate, parent)
|
|
|
2053 |
{
|
|
|
2054 |
Q_D(QStandardItemModel);
|
|
|
2055 |
d->init();
|
|
|
2056 |
d->root->insertColumns(0, columns);
|
|
|
2057 |
d->columnHeaderItems.insert(0, columns, 0);
|
|
|
2058 |
d->root->insertRows(0, rows);
|
|
|
2059 |
d->rowHeaderItems.insert(0, rows, 0);
|
|
|
2060 |
d->root->d_func()->setModel(this);
|
|
|
2061 |
}
|
|
|
2062 |
|
|
|
2063 |
/*!
|
|
|
2064 |
\internal
|
|
|
2065 |
*/
|
|
|
2066 |
QStandardItemModel::QStandardItemModel(QStandardItemModelPrivate &dd, QObject *parent)
|
|
|
2067 |
: QAbstractItemModel(dd, parent)
|
|
|
2068 |
{
|
|
|
2069 |
Q_D(QStandardItemModel);
|
|
|
2070 |
d->init();
|
|
|
2071 |
}
|
|
|
2072 |
|
|
|
2073 |
/*!
|
|
|
2074 |
Destructs the model. The model destroys all its items.
|
|
|
2075 |
*/
|
|
|
2076 |
QStandardItemModel::~QStandardItemModel()
|
|
|
2077 |
{
|
|
|
2078 |
}
|
|
|
2079 |
|
|
|
2080 |
/*!
|
|
|
2081 |
Removes all items (including header items) from the model and sets the
|
|
|
2082 |
number of rows and columns to zero.
|
|
|
2083 |
|
|
|
2084 |
\sa removeColumns(), removeRows()
|
|
|
2085 |
*/
|
|
|
2086 |
void QStandardItemModel::clear()
|
|
|
2087 |
{
|
|
|
2088 |
Q_D(QStandardItemModel);
|
|
|
2089 |
d->root.reset(new QStandardItem);
|
|
|
2090 |
d->root->d_func()->setModel(this);
|
|
|
2091 |
qDeleteAll(d->columnHeaderItems);
|
|
|
2092 |
d->columnHeaderItems.clear();
|
|
|
2093 |
qDeleteAll(d->rowHeaderItems);
|
|
|
2094 |
d->rowHeaderItems.clear();
|
|
|
2095 |
reset();
|
|
|
2096 |
}
|
|
|
2097 |
|
|
|
2098 |
/*!
|
|
|
2099 |
\since 4.2
|
|
|
2100 |
|
|
|
2101 |
Returns a pointer to the QStandardItem associated with the given \a index.
|
|
|
2102 |
|
|
|
2103 |
Calling this function is typically the initial step when processing
|
|
|
2104 |
QModelIndex-based signals from a view, such as
|
|
|
2105 |
QAbstractItemView::activated(). In your slot, you call itemFromIndex(),
|
|
|
2106 |
with the QModelIndex carried by the signal as argument, to obtain a
|
|
|
2107 |
pointer to the corresponding QStandardItem.
|
|
|
2108 |
|
|
|
2109 |
Note that this function will lazily create an item for the index (using
|
|
|
2110 |
itemPrototype()), and set it in the parent item's child table, if no item
|
|
|
2111 |
already exists at that index.
|
|
|
2112 |
|
|
|
2113 |
If \a index is an invalid index, this function returns 0.
|
|
|
2114 |
|
|
|
2115 |
\sa indexFromItem()
|
|
|
2116 |
*/
|
|
|
2117 |
QStandardItem *QStandardItemModel::itemFromIndex(const QModelIndex &index) const
|
|
|
2118 |
{
|
|
|
2119 |
Q_D(const QStandardItemModel);
|
|
|
2120 |
if ((index.row() < 0) || (index.column() < 0) || (index.model() != this))
|
|
|
2121 |
return 0;
|
|
|
2122 |
QStandardItem *parent = static_cast<QStandardItem*>(index.internalPointer());
|
|
|
2123 |
if (parent == 0)
|
|
|
2124 |
return 0;
|
|
|
2125 |
QStandardItem *item = parent->child(index.row(), index.column());
|
|
|
2126 |
// lazy part
|
|
|
2127 |
if (item == 0) {
|
|
|
2128 |
item = d->createItem();
|
|
|
2129 |
parent->d_func()->setChild(index.row(), index.column(), item);
|
|
|
2130 |
}
|
|
|
2131 |
return item;
|
|
|
2132 |
}
|
|
|
2133 |
|
|
|
2134 |
/*!
|
|
|
2135 |
\since 4.2
|
|
|
2136 |
|
|
|
2137 |
Returns the QModelIndex associated with the given \a item.
|
|
|
2138 |
|
|
|
2139 |
Use this function when you want to perform an operation that requires the
|
|
|
2140 |
QModelIndex of the item, such as
|
|
|
2141 |
QAbstractItemView::scrollTo(). QStandardItem::index() is provided as
|
|
|
2142 |
convenience; it is equivalent to calling this function.
|
|
|
2143 |
|
|
|
2144 |
\sa itemFromIndex(), QStandardItem::index()
|
|
|
2145 |
*/
|
|
|
2146 |
QModelIndex QStandardItemModel::indexFromItem(const QStandardItem *item) const
|
|
|
2147 |
{
|
|
|
2148 |
if (item && item->d_func()->parent) {
|
|
|
2149 |
QPair<int, int> pos = item->d_func()->position();
|
|
|
2150 |
return createIndex(pos.first, pos.second, item->d_func()->parent);
|
|
|
2151 |
}
|
|
|
2152 |
return QModelIndex();
|
|
|
2153 |
}
|
|
|
2154 |
|
|
|
2155 |
/*!
|
|
|
2156 |
\since 4.2
|
|
|
2157 |
|
|
|
2158 |
Sets the number of rows in this model to \a rows. If
|
|
|
2159 |
this is less than rowCount(), the data in the unwanted rows
|
|
|
2160 |
is discarded.
|
|
|
2161 |
|
|
|
2162 |
\sa setColumnCount()
|
|
|
2163 |
*/
|
|
|
2164 |
void QStandardItemModel::setRowCount(int rows)
|
|
|
2165 |
{
|
|
|
2166 |
Q_D(QStandardItemModel);
|
|
|
2167 |
d->root->setRowCount(rows);
|
|
|
2168 |
}
|
|
|
2169 |
|
|
|
2170 |
/*!
|
|
|
2171 |
\since 4.2
|
|
|
2172 |
|
|
|
2173 |
Sets the number of columns in this model to \a columns. If
|
|
|
2174 |
this is less than columnCount(), the data in the unwanted columns
|
|
|
2175 |
is discarded.
|
|
|
2176 |
|
|
|
2177 |
\sa setRowCount()
|
|
|
2178 |
*/
|
|
|
2179 |
void QStandardItemModel::setColumnCount(int columns)
|
|
|
2180 |
{
|
|
|
2181 |
Q_D(QStandardItemModel);
|
|
|
2182 |
d->root->setColumnCount(columns);
|
|
|
2183 |
}
|
|
|
2184 |
|
|
|
2185 |
/*!
|
|
|
2186 |
\since 4.2
|
|
|
2187 |
|
|
|
2188 |
Sets the item for the given \a row and \a column to \a item. The model
|
|
|
2189 |
takes ownership of the item. If necessary, the row count and column count
|
|
|
2190 |
are increased to fit the item. The previous item at the given location (if
|
|
|
2191 |
there was one) is deleted.
|
|
|
2192 |
|
|
|
2193 |
\sa item()
|
|
|
2194 |
*/
|
|
|
2195 |
void QStandardItemModel::setItem(int row, int column, QStandardItem *item)
|
|
|
2196 |
{
|
|
|
2197 |
Q_D(QStandardItemModel);
|
|
|
2198 |
d->root->d_func()->setChild(row, column, item, true);
|
|
|
2199 |
}
|
|
|
2200 |
|
|
|
2201 |
/*!
|
|
|
2202 |
\fn QStandardItemModel::setItem(int row, QStandardItem *item)
|
|
|
2203 |
\overload
|
|
|
2204 |
*/
|
|
|
2205 |
|
|
|
2206 |
/*!
|
|
|
2207 |
\since 4.2
|
|
|
2208 |
|
|
|
2209 |
Returns the item for the given \a row and \a column if one has been set;
|
|
|
2210 |
otherwise returns 0.
|
|
|
2211 |
|
|
|
2212 |
\sa setItem(), takeItem(), itemFromIndex()
|
|
|
2213 |
*/
|
|
|
2214 |
QStandardItem *QStandardItemModel::item(int row, int column) const
|
|
|
2215 |
{
|
|
|
2216 |
Q_D(const QStandardItemModel);
|
|
|
2217 |
return d->root->child(row, column);
|
|
|
2218 |
}
|
|
|
2219 |
|
|
|
2220 |
/*!
|
|
|
2221 |
\since 4.2
|
|
|
2222 |
|
|
|
2223 |
Returns the model's invisible root item.
|
|
|
2224 |
|
|
|
2225 |
The invisible root item provides access to the model's top-level items
|
|
|
2226 |
through the QStandardItem API, making it possible to write functions that
|
|
|
2227 |
can treat top-level items and their children in a uniform way; for
|
|
|
2228 |
example, recursive functions involving a tree model.
|
|
|
2229 |
|
|
|
2230 |
\note Calling \l{QAbstractItemModel::index()}{index()} on the QStandardItem object
|
|
|
2231 |
retrieved from this function is not valid.
|
|
|
2232 |
*/
|
|
|
2233 |
QStandardItem *QStandardItemModel::invisibleRootItem() const
|
|
|
2234 |
{
|
|
|
2235 |
Q_D(const QStandardItemModel);
|
|
|
2236 |
return d->root.data();
|
|
|
2237 |
}
|
|
|
2238 |
|
|
|
2239 |
/*!
|
|
|
2240 |
\since 4.2
|
|
|
2241 |
|
|
|
2242 |
Sets the horizontal header item for \a column to \a item. The model takes
|
|
|
2243 |
ownership of the item. If necessary, the column count is increased to fit
|
|
|
2244 |
the item. The previous header item (if there was one) is deleted.
|
|
|
2245 |
|
|
|
2246 |
\sa horizontalHeaderItem(), setHorizontalHeaderLabels(),
|
|
|
2247 |
setVerticalHeaderItem()
|
|
|
2248 |
*/
|
|
|
2249 |
void QStandardItemModel::setHorizontalHeaderItem(int column, QStandardItem *item)
|
|
|
2250 |
{
|
|
|
2251 |
Q_D(QStandardItemModel);
|
|
|
2252 |
if (column < 0)
|
|
|
2253 |
return;
|
|
|
2254 |
if (columnCount() <= column)
|
|
|
2255 |
setColumnCount(column + 1);
|
|
|
2256 |
|
|
|
2257 |
QStandardItem *oldItem = d->columnHeaderItems.at(column);
|
|
|
2258 |
if (item == oldItem)
|
|
|
2259 |
return;
|
|
|
2260 |
|
|
|
2261 |
if (item) {
|
|
|
2262 |
if (item->model() == 0) {
|
|
|
2263 |
item->d_func()->setModel(this);
|
|
|
2264 |
} else {
|
|
|
2265 |
qWarning("QStandardItem::setHorizontalHeaderItem: Ignoring duplicate insertion of item %p",
|
|
|
2266 |
item);
|
|
|
2267 |
return;
|
|
|
2268 |
}
|
|
|
2269 |
}
|
|
|
2270 |
|
|
|
2271 |
if (oldItem)
|
|
|
2272 |
oldItem->d_func()->setModel(0);
|
|
|
2273 |
delete oldItem;
|
|
|
2274 |
|
|
|
2275 |
d->columnHeaderItems.replace(column, item);
|
|
|
2276 |
emit headerDataChanged(Qt::Horizontal, column, column);
|
|
|
2277 |
}
|
|
|
2278 |
|
|
|
2279 |
/*!
|
|
|
2280 |
\since 4.2
|
|
|
2281 |
|
|
|
2282 |
Returns the horizontal header item for \a column if one has been set;
|
|
|
2283 |
otherwise returns 0.
|
|
|
2284 |
|
|
|
2285 |
\sa setHorizontalHeaderItem(), verticalHeaderItem()
|
|
|
2286 |
*/
|
|
|
2287 |
QStandardItem *QStandardItemModel::horizontalHeaderItem(int column) const
|
|
|
2288 |
{
|
|
|
2289 |
Q_D(const QStandardItemModel);
|
|
|
2290 |
if ((column < 0) || (column >= columnCount()))
|
|
|
2291 |
return 0;
|
|
|
2292 |
return d->columnHeaderItems.at(column);
|
|
|
2293 |
}
|
|
|
2294 |
|
|
|
2295 |
/*!
|
|
|
2296 |
\since 4.2
|
|
|
2297 |
|
|
|
2298 |
Sets the vertical header item for \a row to \a item. The model takes
|
|
|
2299 |
ownership of the item. If necessary, the row count is increased to fit the
|
|
|
2300 |
item. The previous header item (if there was one) is deleted.
|
|
|
2301 |
|
|
|
2302 |
\sa verticalHeaderItem(), setVerticalHeaderLabels(),
|
|
|
2303 |
setHorizontalHeaderItem()
|
|
|
2304 |
*/
|
|
|
2305 |
void QStandardItemModel::setVerticalHeaderItem(int row, QStandardItem *item)
|
|
|
2306 |
{
|
|
|
2307 |
Q_D(QStandardItemModel);
|
|
|
2308 |
if (row < 0)
|
|
|
2309 |
return;
|
|
|
2310 |
if (rowCount() <= row)
|
|
|
2311 |
setRowCount(row + 1);
|
|
|
2312 |
|
|
|
2313 |
QStandardItem *oldItem = d->rowHeaderItems.at(row);
|
|
|
2314 |
if (item == oldItem)
|
|
|
2315 |
return;
|
|
|
2316 |
|
|
|
2317 |
if (item) {
|
|
|
2318 |
if (item->model() == 0) {
|
|
|
2319 |
item->d_func()->setModel(this);
|
|
|
2320 |
} else {
|
|
|
2321 |
qWarning("QStandardItem::setVerticalHeaderItem: Ignoring duplicate insertion of item %p",
|
|
|
2322 |
item);
|
|
|
2323 |
return;
|
|
|
2324 |
}
|
|
|
2325 |
}
|
|
|
2326 |
|
|
|
2327 |
if (oldItem)
|
|
|
2328 |
oldItem->d_func()->setModel(0);
|
|
|
2329 |
delete oldItem;
|
|
|
2330 |
|
|
|
2331 |
d->rowHeaderItems.replace(row, item);
|
|
|
2332 |
emit headerDataChanged(Qt::Vertical, row, row);
|
|
|
2333 |
}
|
|
|
2334 |
|
|
|
2335 |
/*!
|
|
|
2336 |
\since 4.2
|
|
|
2337 |
|
|
|
2338 |
Returns the vertical header item for row \a row if one has been set;
|
|
|
2339 |
otherwise returns 0.
|
|
|
2340 |
|
|
|
2341 |
\sa setVerticalHeaderItem(), horizontalHeaderItem()
|
|
|
2342 |
*/
|
|
|
2343 |
QStandardItem *QStandardItemModel::verticalHeaderItem(int row) const
|
|
|
2344 |
{
|
|
|
2345 |
Q_D(const QStandardItemModel);
|
|
|
2346 |
if ((row < 0) || (row >= rowCount()))
|
|
|
2347 |
return 0;
|
|
|
2348 |
return d->rowHeaderItems.at(row);
|
|
|
2349 |
}
|
|
|
2350 |
|
|
|
2351 |
/*!
|
|
|
2352 |
\since 4.2
|
|
|
2353 |
|
|
|
2354 |
Sets the horizontal header labels using \a labels. If necessary, the
|
|
|
2355 |
column count is increased to the size of \a labels.
|
|
|
2356 |
|
|
|
2357 |
\sa setHorizontalHeaderItem()
|
|
|
2358 |
*/
|
|
|
2359 |
void QStandardItemModel::setHorizontalHeaderLabels(const QStringList &labels)
|
|
|
2360 |
{
|
|
|
2361 |
Q_D(QStandardItemModel);
|
|
|
2362 |
if (columnCount() < labels.count())
|
|
|
2363 |
setColumnCount(labels.count());
|
|
|
2364 |
for (int i = 0; i < labels.count(); ++i) {
|
|
|
2365 |
QStandardItem *item = horizontalHeaderItem(i);
|
|
|
2366 |
if (!item) {
|
|
|
2367 |
item = d->createItem();
|
|
|
2368 |
setHorizontalHeaderItem(i, item);
|
|
|
2369 |
}
|
|
|
2370 |
item->setText(labels.at(i));
|
|
|
2371 |
}
|
|
|
2372 |
}
|
|
|
2373 |
|
|
|
2374 |
/*!
|
|
|
2375 |
\since 4.2
|
|
|
2376 |
|
|
|
2377 |
Sets the vertical header labels using \a labels. If necessary, the row
|
|
|
2378 |
count is increased to the size of \a labels.
|
|
|
2379 |
|
|
|
2380 |
\sa setVerticalHeaderItem()
|
|
|
2381 |
*/
|
|
|
2382 |
void QStandardItemModel::setVerticalHeaderLabels(const QStringList &labels)
|
|
|
2383 |
{
|
|
|
2384 |
Q_D(QStandardItemModel);
|
|
|
2385 |
if (rowCount() < labels.count())
|
|
|
2386 |
setRowCount(labels.count());
|
|
|
2387 |
for (int i = 0; i < labels.count(); ++i) {
|
|
|
2388 |
QStandardItem *item = verticalHeaderItem(i);
|
|
|
2389 |
if (!item) {
|
|
|
2390 |
item = d->createItem();
|
|
|
2391 |
setVerticalHeaderItem(i, item);
|
|
|
2392 |
}
|
|
|
2393 |
item->setText(labels.at(i));
|
|
|
2394 |
}
|
|
|
2395 |
}
|
|
|
2396 |
|
|
|
2397 |
/*!
|
|
|
2398 |
\since 4.2
|
|
|
2399 |
|
|
|
2400 |
Sets the item prototype for the model to the specified \a item. The model
|
|
|
2401 |
takes ownership of the prototype.
|
|
|
2402 |
|
|
|
2403 |
The item prototype acts as a QStandardItem factory, by relying on the
|
|
|
2404 |
QStandardItem::clone() function. To provide your own prototype, subclass
|
|
|
2405 |
QStandardItem, reimplement QStandardItem::clone() and set the prototype to
|
|
|
2406 |
be an instance of your custom class. Whenever QStandardItemModel needs to
|
|
|
2407 |
create an item on demand (for instance, when a view or item delegate calls
|
|
|
2408 |
setData())), the new items will be instances of your custom class.
|
|
|
2409 |
|
|
|
2410 |
\sa itemPrototype(), QStandardItem::clone()
|
|
|
2411 |
*/
|
|
|
2412 |
void QStandardItemModel::setItemPrototype(const QStandardItem *item)
|
|
|
2413 |
{
|
|
|
2414 |
Q_D(QStandardItemModel);
|
|
|
2415 |
if (d->itemPrototype != item) {
|
|
|
2416 |
delete d->itemPrototype;
|
|
|
2417 |
d->itemPrototype = item;
|
|
|
2418 |
}
|
|
|
2419 |
}
|
|
|
2420 |
|
|
|
2421 |
/*!
|
|
|
2422 |
\since 4.2
|
|
|
2423 |
|
|
|
2424 |
Returns the item prototype used by the model. The model uses the item
|
|
|
2425 |
prototype as an item factory when it needs to construct new items on
|
|
|
2426 |
demand (for instance, when a view or item delegate calls setData()).
|
|
|
2427 |
|
|
|
2428 |
\sa setItemPrototype()
|
|
|
2429 |
*/
|
|
|
2430 |
const QStandardItem *QStandardItemModel::itemPrototype() const
|
|
|
2431 |
{
|
|
|
2432 |
Q_D(const QStandardItemModel);
|
|
|
2433 |
return d->itemPrototype;
|
|
|
2434 |
}
|
|
|
2435 |
|
|
|
2436 |
/*!
|
|
|
2437 |
\since 4.2
|
|
|
2438 |
|
|
|
2439 |
Returns a list of items that match the given \a text, using the given \a
|
|
|
2440 |
flags, in the given \a column.
|
|
|
2441 |
*/
|
|
|
2442 |
QList<QStandardItem*> QStandardItemModel::findItems(const QString &text,
|
|
|
2443 |
Qt::MatchFlags flags, int column) const
|
|
|
2444 |
{
|
|
|
2445 |
QModelIndexList indexes = match(index(0, column, QModelIndex()),
|
|
|
2446 |
Qt::DisplayRole, text, -1, flags);
|
|
|
2447 |
QList<QStandardItem*> items;
|
|
|
2448 |
for (int i = 0; i < indexes.size(); ++i)
|
|
|
2449 |
items.append(itemFromIndex(indexes.at(i)));
|
|
|
2450 |
return items;
|
|
|
2451 |
}
|
|
|
2452 |
|
|
|
2453 |
/*!
|
|
|
2454 |
\since 4.2
|
|
|
2455 |
|
|
|
2456 |
Appends a row containing \a items. If necessary, the column count is
|
|
|
2457 |
increased to the size of \a items.
|
|
|
2458 |
|
|
|
2459 |
\sa insertRow(), appendColumn()
|
|
|
2460 |
*/
|
|
|
2461 |
void QStandardItemModel::appendRow(const QList<QStandardItem*> &items)
|
|
|
2462 |
{
|
|
|
2463 |
invisibleRootItem()->appendRow(items);
|
|
|
2464 |
}
|
|
|
2465 |
|
|
|
2466 |
/*!
|
|
|
2467 |
\since 4.2
|
|
|
2468 |
|
|
|
2469 |
Appends a column containing \a items. If necessary, the row count is
|
|
|
2470 |
increased to the size of \a items.
|
|
|
2471 |
|
|
|
2472 |
\sa insertColumn(), appendRow()
|
|
|
2473 |
*/
|
|
|
2474 |
void QStandardItemModel::appendColumn(const QList<QStandardItem*> &items)
|
|
|
2475 |
{
|
|
|
2476 |
invisibleRootItem()->appendColumn(items);
|
|
|
2477 |
}
|
|
|
2478 |
|
|
|
2479 |
/*!
|
|
|
2480 |
\since 4.2
|
|
|
2481 |
\fn QStandardItemModel::appendRow(QStandardItem *item)
|
|
|
2482 |
\overload
|
|
|
2483 |
|
|
|
2484 |
When building a list or a tree that has only one column, this function
|
|
|
2485 |
provides a convenient way to append a single new \a item.
|
|
|
2486 |
*/
|
|
|
2487 |
|
|
|
2488 |
/*!
|
|
|
2489 |
\since 4.2
|
|
|
2490 |
|
|
|
2491 |
Inserts a row at \a row containing \a items. If necessary, the column
|
|
|
2492 |
count is increased to the size of \a items.
|
|
|
2493 |
|
|
|
2494 |
\sa takeRow(), appendRow(), insertColumn()
|
|
|
2495 |
*/
|
|
|
2496 |
void QStandardItemModel::insertRow(int row, const QList<QStandardItem*> &items)
|
|
|
2497 |
{
|
|
|
2498 |
invisibleRootItem()->insertRow(row, items);
|
|
|
2499 |
}
|
|
|
2500 |
|
|
|
2501 |
/*!
|
|
|
2502 |
\since 4.2
|
|
|
2503 |
|
|
|
2504 |
\fn void QStandardItemModel::insertRow(int row, QStandardItem *item)
|
|
|
2505 |
\overload
|
|
|
2506 |
|
|
|
2507 |
Inserts a row at \a row containing \a item.
|
|
|
2508 |
|
|
|
2509 |
When building a list or a tree that has only one column, this function
|
|
|
2510 |
provides a convenient way to append a single new item.
|
|
|
2511 |
*/
|
|
|
2512 |
|
|
|
2513 |
/*!
|
|
|
2514 |
\since 4.2
|
|
|
2515 |
|
|
|
2516 |
Inserts a column at \a column containing \a items. If necessary, the row
|
|
|
2517 |
count is increased to the size of \a items.
|
|
|
2518 |
|
|
|
2519 |
\sa takeColumn(), appendColumn(), insertRow()
|
|
|
2520 |
*/
|
|
|
2521 |
void QStandardItemModel::insertColumn(int column, const QList<QStandardItem*> &items)
|
|
|
2522 |
{
|
|
|
2523 |
invisibleRootItem()->insertColumn(column, items);
|
|
|
2524 |
}
|
|
|
2525 |
|
|
|
2526 |
/*!
|
|
|
2527 |
\since 4.2
|
|
|
2528 |
|
|
|
2529 |
Removes the item at (\a row, \a column) without deleting it. The model
|
|
|
2530 |
releases ownership of the item.
|
|
|
2531 |
|
|
|
2532 |
\sa item(), takeRow(), takeColumn()
|
|
|
2533 |
*/
|
|
|
2534 |
QStandardItem *QStandardItemModel::takeItem(int row, int column)
|
|
|
2535 |
{
|
|
|
2536 |
Q_D(QStandardItemModel);
|
|
|
2537 |
return d->root->takeChild(row, column);
|
|
|
2538 |
}
|
|
|
2539 |
|
|
|
2540 |
/*!
|
|
|
2541 |
\since 4.2
|
|
|
2542 |
|
|
|
2543 |
Removes the given \a row without deleting the row items, and returns a
|
|
|
2544 |
list of pointers to the removed items. The model releases ownership of the
|
|
|
2545 |
items. For items in the row that have not been set, the corresponding
|
|
|
2546 |
pointers in the list will be 0.
|
|
|
2547 |
|
|
|
2548 |
\sa takeColumn()
|
|
|
2549 |
*/
|
|
|
2550 |
QList<QStandardItem*> QStandardItemModel::takeRow(int row)
|
|
|
2551 |
{
|
|
|
2552 |
Q_D(QStandardItemModel);
|
|
|
2553 |
return d->root->takeRow(row);
|
|
|
2554 |
}
|
|
|
2555 |
|
|
|
2556 |
/*!
|
|
|
2557 |
\since 4.2
|
|
|
2558 |
|
|
|
2559 |
Removes the given \a column without deleting the column items, and returns
|
|
|
2560 |
a list of pointers to the removed items. The model releases ownership of
|
|
|
2561 |
the items. For items in the column that have not been set, the
|
|
|
2562 |
corresponding pointers in the list will be 0.
|
|
|
2563 |
|
|
|
2564 |
\sa takeRow()
|
|
|
2565 |
*/
|
|
|
2566 |
QList<QStandardItem*> QStandardItemModel::takeColumn(int column)
|
|
|
2567 |
{
|
|
|
2568 |
Q_D(QStandardItemModel);
|
|
|
2569 |
return d->root->takeColumn(column);
|
|
|
2570 |
}
|
|
|
2571 |
|
|
|
2572 |
/*!
|
|
|
2573 |
\since 4.2
|
|
|
2574 |
|
|
|
2575 |
Removes the horizontal header item at \a column from the header without
|
|
|
2576 |
deleting it, and returns a pointer to the item. The model releases
|
|
|
2577 |
ownership of the item.
|
|
|
2578 |
|
|
|
2579 |
\sa horizontalHeaderItem(), takeVerticalHeaderItem()
|
|
|
2580 |
*/
|
|
|
2581 |
QStandardItem *QStandardItemModel::takeHorizontalHeaderItem(int column)
|
|
|
2582 |
{
|
|
|
2583 |
Q_D(QStandardItemModel);
|
|
|
2584 |
if ((column < 0) || (column >= columnCount()))
|
|
|
2585 |
return 0;
|
|
|
2586 |
QStandardItem *headerItem = d->columnHeaderItems.at(column);
|
|
|
2587 |
if (headerItem) {
|
|
|
2588 |
headerItem->d_func()->setParentAndModel(0, 0);
|
|
|
2589 |
d->columnHeaderItems.replace(column, 0);
|
|
|
2590 |
}
|
|
|
2591 |
return headerItem;
|
|
|
2592 |
}
|
|
|
2593 |
|
|
|
2594 |
/*!
|
|
|
2595 |
\since 4.2
|
|
|
2596 |
|
|
|
2597 |
Removes the vertical header item at \a row from the header without
|
|
|
2598 |
deleting it, and returns a pointer to the item. The model releases
|
|
|
2599 |
ownership of the item.
|
|
|
2600 |
|
|
|
2601 |
\sa verticalHeaderItem(), takeHorizontalHeaderItem()
|
|
|
2602 |
*/
|
|
|
2603 |
QStandardItem *QStandardItemModel::takeVerticalHeaderItem(int row)
|
|
|
2604 |
{
|
|
|
2605 |
Q_D(QStandardItemModel);
|
|
|
2606 |
if ((row < 0) || (row >= rowCount()))
|
|
|
2607 |
return 0;
|
|
|
2608 |
QStandardItem *headerItem = d->rowHeaderItems.at(row);
|
|
|
2609 |
if (headerItem) {
|
|
|
2610 |
headerItem->d_func()->setParentAndModel(0, 0);
|
|
|
2611 |
d->rowHeaderItems.replace(row, 0);
|
|
|
2612 |
}
|
|
|
2613 |
return headerItem;
|
|
|
2614 |
}
|
|
|
2615 |
|
|
|
2616 |
/*!
|
|
|
2617 |
\since 4.2
|
|
|
2618 |
\property QStandardItemModel::sortRole
|
|
|
2619 |
\brief the item role that is used to query the model's data when sorting items
|
|
|
2620 |
|
|
|
2621 |
The default value is Qt::DisplayRole.
|
|
|
2622 |
|
|
|
2623 |
\sa sort(), QStandardItem::sortChildren()
|
|
|
2624 |
*/
|
|
|
2625 |
int QStandardItemModel::sortRole() const
|
|
|
2626 |
{
|
|
|
2627 |
Q_D(const QStandardItemModel);
|
|
|
2628 |
return d->sortRole;
|
|
|
2629 |
}
|
|
|
2630 |
|
|
|
2631 |
void QStandardItemModel::setSortRole(int role)
|
|
|
2632 |
{
|
|
|
2633 |
Q_D(QStandardItemModel);
|
|
|
2634 |
d->sortRole = role;
|
|
|
2635 |
}
|
|
|
2636 |
|
|
|
2637 |
/*!
|
|
|
2638 |
\reimp
|
|
|
2639 |
*/
|
|
|
2640 |
int QStandardItemModel::columnCount(const QModelIndex &parent) const
|
|
|
2641 |
{
|
|
|
2642 |
Q_D(const QStandardItemModel);
|
|
|
2643 |
QStandardItem *item = d->itemFromIndex(parent);
|
|
|
2644 |
return item ? item->columnCount() : 0;
|
|
|
2645 |
}
|
|
|
2646 |
|
|
|
2647 |
/*!
|
|
|
2648 |
\reimp
|
|
|
2649 |
*/
|
|
|
2650 |
QVariant QStandardItemModel::data(const QModelIndex &index, int role) const
|
|
|
2651 |
{
|
|
|
2652 |
Q_D(const QStandardItemModel);
|
|
|
2653 |
QStandardItem *item = d->itemFromIndex(index);
|
|
|
2654 |
return item ? item->data(role) : QVariant();
|
|
|
2655 |
}
|
|
|
2656 |
|
|
|
2657 |
/*!
|
|
|
2658 |
\reimp
|
|
|
2659 |
*/
|
|
|
2660 |
Qt::ItemFlags QStandardItemModel::flags(const QModelIndex &index) const
|
|
|
2661 |
{
|
|
|
2662 |
Q_D(const QStandardItemModel);
|
|
|
2663 |
if (!d->indexValid(index))
|
|
|
2664 |
return d->root->flags();
|
|
|
2665 |
QStandardItem *item = d->itemFromIndex(index);
|
|
|
2666 |
if (item)
|
|
|
2667 |
return item->flags();
|
|
|
2668 |
return Qt::ItemIsSelectable
|
|
|
2669 |
|Qt::ItemIsEnabled
|
|
|
2670 |
|Qt::ItemIsEditable
|
|
|
2671 |
|Qt::ItemIsDragEnabled
|
|
|
2672 |
|Qt::ItemIsDropEnabled;
|
|
|
2673 |
}
|
|
|
2674 |
|
|
|
2675 |
/*!
|
|
|
2676 |
\reimp
|
|
|
2677 |
*/
|
|
|
2678 |
bool QStandardItemModel::hasChildren(const QModelIndex &parent) const
|
|
|
2679 |
{
|
|
|
2680 |
Q_D(const QStandardItemModel);
|
|
|
2681 |
QStandardItem *item = d->itemFromIndex(parent);
|
|
|
2682 |
return item ? item->hasChildren() : false;
|
|
|
2683 |
}
|
|
|
2684 |
|
|
|
2685 |
/*!
|
|
|
2686 |
\reimp
|
|
|
2687 |
*/
|
|
|
2688 |
QVariant QStandardItemModel::headerData(int section, Qt::Orientation orientation, int role) const
|
|
|
2689 |
{
|
|
|
2690 |
Q_D(const QStandardItemModel);
|
|
|
2691 |
if ((section < 0)
|
|
|
2692 |
|| ((orientation == Qt::Horizontal) && (section >= columnCount()))
|
|
|
2693 |
|| ((orientation == Qt::Vertical) && (section >= rowCount()))) {
|
|
|
2694 |
return QVariant();
|
|
|
2695 |
}
|
|
|
2696 |
QStandardItem *headerItem = 0;
|
|
|
2697 |
if (orientation == Qt::Horizontal)
|
|
|
2698 |
headerItem = d->columnHeaderItems.at(section);
|
|
|
2699 |
else if (orientation == Qt::Vertical)
|
|
|
2700 |
headerItem = d->rowHeaderItems.at(section);
|
|
|
2701 |
return headerItem ? headerItem->data(role)
|
|
|
2702 |
: QAbstractItemModel::headerData(section, orientation, role);
|
|
|
2703 |
}
|
|
|
2704 |
|
|
|
2705 |
/*!
|
|
|
2706 |
\reimp
|
|
|
2707 |
|
|
|
2708 |
QStandardItemModel supports both copy and move.
|
|
|
2709 |
*/
|
|
|
2710 |
Qt::DropActions QStandardItemModel::supportedDropActions () const
|
|
|
2711 |
{
|
|
|
2712 |
return Qt::CopyAction | Qt::MoveAction;
|
|
|
2713 |
}
|
|
|
2714 |
|
|
|
2715 |
/*!
|
|
|
2716 |
\reimp
|
|
|
2717 |
*/
|
|
|
2718 |
QModelIndex QStandardItemModel::index(int row, int column, const QModelIndex &parent) const
|
|
|
2719 |
{
|
|
|
2720 |
Q_D(const QStandardItemModel);
|
|
|
2721 |
QStandardItem *parentItem = d->itemFromIndex(parent);
|
|
|
2722 |
if ((parentItem == 0)
|
|
|
2723 |
|| (row < 0)
|
|
|
2724 |
|| (column < 0)
|
|
|
2725 |
|| (row >= parentItem->rowCount())
|
|
|
2726 |
|| (column >= parentItem->columnCount())) {
|
|
|
2727 |
return QModelIndex();
|
|
|
2728 |
}
|
|
|
2729 |
return createIndex(row, column, parentItem);
|
|
|
2730 |
}
|
|
|
2731 |
|
|
|
2732 |
/*!
|
|
|
2733 |
\reimp
|
|
|
2734 |
*/
|
|
|
2735 |
bool QStandardItemModel::insertColumns(int column, int count, const QModelIndex &parent)
|
|
|
2736 |
{
|
|
|
2737 |
Q_D(QStandardItemModel);
|
|
|
2738 |
QStandardItem *item = parent.isValid() ? itemFromIndex(parent) : d->root.data();
|
|
|
2739 |
if (item == 0)
|
|
|
2740 |
return false;
|
|
|
2741 |
return item->d_func()->insertColumns(column, count, QList<QStandardItem*>());
|
|
|
2742 |
}
|
|
|
2743 |
|
|
|
2744 |
/*!
|
|
|
2745 |
\reimp
|
|
|
2746 |
*/
|
|
|
2747 |
bool QStandardItemModel::insertRows(int row, int count, const QModelIndex &parent)
|
|
|
2748 |
{
|
|
|
2749 |
Q_D(QStandardItemModel);
|
|
|
2750 |
QStandardItem *item = parent.isValid() ? itemFromIndex(parent) : d->root.data();
|
|
|
2751 |
if (item == 0)
|
|
|
2752 |
return false;
|
|
|
2753 |
return item->d_func()->insertRows(row, count, QList<QStandardItem*>());
|
|
|
2754 |
}
|
|
|
2755 |
|
|
|
2756 |
/*!
|
|
|
2757 |
\reimp
|
|
|
2758 |
*/
|
|
|
2759 |
QMap<int, QVariant> QStandardItemModel::itemData(const QModelIndex &index) const
|
|
|
2760 |
{
|
|
|
2761 |
Q_D(const QStandardItemModel);
|
|
|
2762 |
QStandardItem *item = d->itemFromIndex(index);
|
|
|
2763 |
return item ? item->d_func()->itemData() : QMap<int, QVariant>();
|
|
|
2764 |
}
|
|
|
2765 |
|
|
|
2766 |
/*!
|
|
|
2767 |
\reimp
|
|
|
2768 |
*/
|
|
|
2769 |
QModelIndex QStandardItemModel::parent(const QModelIndex &child) const
|
|
|
2770 |
{
|
|
|
2771 |
Q_D(const QStandardItemModel);
|
|
|
2772 |
if (!d->indexValid(child))
|
|
|
2773 |
return QModelIndex();
|
|
|
2774 |
QStandardItem *parentItem = static_cast<QStandardItem*>(child.internalPointer());
|
|
|
2775 |
return indexFromItem(parentItem);
|
|
|
2776 |
}
|
|
|
2777 |
|
|
|
2778 |
/*!
|
|
|
2779 |
\reimp
|
|
|
2780 |
*/
|
|
|
2781 |
bool QStandardItemModel::removeColumns(int column, int count, const QModelIndex &parent)
|
|
|
2782 |
{
|
|
|
2783 |
Q_D(QStandardItemModel);
|
|
|
2784 |
QStandardItem *item = d->itemFromIndex(parent);
|
|
|
2785 |
if ((item == 0) || (count < 1) || (column < 0) || ((column + count) > item->columnCount()))
|
|
|
2786 |
return false;
|
|
|
2787 |
item->removeColumns(column, count);
|
|
|
2788 |
return true;
|
|
|
2789 |
}
|
|
|
2790 |
|
|
|
2791 |
/*!
|
|
|
2792 |
\reimp
|
|
|
2793 |
*/
|
|
|
2794 |
bool QStandardItemModel::removeRows(int row, int count, const QModelIndex &parent)
|
|
|
2795 |
{
|
|
|
2796 |
Q_D(QStandardItemModel);
|
|
|
2797 |
QStandardItem *item = d->itemFromIndex(parent);
|
|
|
2798 |
if ((item == 0) || (count < 1) || (row < 0) || ((row + count) > item->rowCount()))
|
|
|
2799 |
return false;
|
|
|
2800 |
item->removeRows(row, count);
|
|
|
2801 |
return true;
|
|
|
2802 |
}
|
|
|
2803 |
|
|
|
2804 |
/*!
|
|
|
2805 |
\reimp
|
|
|
2806 |
*/
|
|
|
2807 |
int QStandardItemModel::rowCount(const QModelIndex &parent) const
|
|
|
2808 |
{
|
|
|
2809 |
Q_D(const QStandardItemModel);
|
|
|
2810 |
QStandardItem *item = d->itemFromIndex(parent);
|
|
|
2811 |
return item ? item->rowCount() : 0;
|
|
|
2812 |
}
|
|
|
2813 |
|
|
|
2814 |
/*!
|
|
|
2815 |
\reimp
|
|
|
2816 |
*/
|
|
|
2817 |
bool QStandardItemModel::setData(const QModelIndex &index, const QVariant &value, int role)
|
|
|
2818 |
{
|
|
|
2819 |
if (!index.isValid())
|
|
|
2820 |
return false;
|
|
|
2821 |
QStandardItem *item = itemFromIndex(index);
|
|
|
2822 |
if (item == 0)
|
|
|
2823 |
return false;
|
|
|
2824 |
item->setData(value, role);
|
|
|
2825 |
return true;
|
|
|
2826 |
}
|
|
|
2827 |
|
|
|
2828 |
/*!
|
|
|
2829 |
\reimp
|
|
|
2830 |
*/
|
|
|
2831 |
bool QStandardItemModel::setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role)
|
|
|
2832 |
{
|
|
|
2833 |
Q_D(QStandardItemModel);
|
|
|
2834 |
if ((section < 0)
|
|
|
2835 |
|| ((orientation == Qt::Horizontal) && (section >= columnCount()))
|
|
|
2836 |
|| ((orientation == Qt::Vertical) && (section >= rowCount()))) {
|
|
|
2837 |
return false;
|
|
|
2838 |
}
|
|
|
2839 |
QStandardItem *headerItem = 0;
|
|
|
2840 |
if (orientation == Qt::Horizontal) {
|
|
|
2841 |
headerItem = d->columnHeaderItems.at(section);
|
|
|
2842 |
if (headerItem == 0) {
|
|
|
2843 |
headerItem = d->createItem();
|
|
|
2844 |
headerItem->d_func()->setModel(this);
|
|
|
2845 |
d->columnHeaderItems.replace(section, headerItem);
|
|
|
2846 |
}
|
|
|
2847 |
} else if (orientation == Qt::Vertical) {
|
|
|
2848 |
headerItem = d->rowHeaderItems.at(section);
|
|
|
2849 |
if (headerItem == 0) {
|
|
|
2850 |
headerItem = d->createItem();
|
|
|
2851 |
headerItem->d_func()->setModel(this);
|
|
|
2852 |
d->rowHeaderItems.replace(section, headerItem);
|
|
|
2853 |
}
|
|
|
2854 |
}
|
|
|
2855 |
if (headerItem) {
|
|
|
2856 |
headerItem->setData(value, role);
|
|
|
2857 |
return true;
|
|
|
2858 |
}
|
|
|
2859 |
return false;
|
|
|
2860 |
}
|
|
|
2861 |
|
|
|
2862 |
/*!
|
|
|
2863 |
\reimp
|
|
|
2864 |
*/
|
|
|
2865 |
bool QStandardItemModel::setItemData(const QModelIndex &index, const QMap<int, QVariant> &roles)
|
|
|
2866 |
{
|
|
|
2867 |
QStandardItem *item = itemFromIndex(index);
|
|
|
2868 |
if (item == 0)
|
|
|
2869 |
return false;
|
|
|
2870 |
item->d_func()->setItemData(roles);
|
|
|
2871 |
return true;
|
|
|
2872 |
}
|
|
|
2873 |
|
|
|
2874 |
/*!
|
|
|
2875 |
\reimp
|
|
|
2876 |
*/
|
|
|
2877 |
void QStandardItemModel::sort(int column, Qt::SortOrder order)
|
|
|
2878 |
{
|
|
|
2879 |
Q_D(QStandardItemModel);
|
|
|
2880 |
d->root->sortChildren(column, order);
|
|
|
2881 |
}
|
|
|
2882 |
|
|
|
2883 |
/*!
|
|
|
2884 |
\fn QObject *QStandardItemModel::parent() const
|
|
|
2885 |
\internal
|
|
|
2886 |
*/
|
|
|
2887 |
|
|
|
2888 |
|
|
|
2889 |
/*!
|
|
|
2890 |
\reimp
|
|
|
2891 |
*/
|
|
|
2892 |
QStringList QStandardItemModel::mimeTypes() const
|
|
|
2893 |
{
|
|
|
2894 |
return QAbstractItemModel::mimeTypes() << QLatin1String("application/x-qstandarditemmodeldatalist");
|
|
|
2895 |
}
|
|
|
2896 |
|
|
|
2897 |
/*!
|
|
|
2898 |
\reimp
|
|
|
2899 |
*/
|
|
|
2900 |
QMimeData *QStandardItemModel::mimeData(const QModelIndexList &indexes) const
|
|
|
2901 |
{
|
|
|
2902 |
QMimeData *data = QAbstractItemModel::mimeData(indexes);
|
|
|
2903 |
if(!data)
|
|
|
2904 |
return 0;
|
|
|
2905 |
|
|
|
2906 |
QString format = QLatin1String("application/x-qstandarditemmodeldatalist");
|
|
|
2907 |
if (!mimeTypes().contains(format))
|
|
|
2908 |
return data;
|
|
|
2909 |
QByteArray encoded;
|
|
|
2910 |
QDataStream stream(&encoded, QIODevice::WriteOnly);
|
|
|
2911 |
|
|
|
2912 |
QSet<QStandardItem*> itemsSet;
|
|
|
2913 |
QStack<QStandardItem*> stack;
|
|
|
2914 |
itemsSet.reserve(indexes.count());
|
|
|
2915 |
stack.reserve(indexes.count());
|
|
|
2916 |
for (int i = 0; i < indexes.count(); ++i) {
|
|
|
2917 |
QStandardItem *item = itemFromIndex(indexes.at(i));
|
|
|
2918 |
itemsSet << item;
|
|
|
2919 |
stack.push(item);
|
|
|
2920 |
}
|
|
|
2921 |
|
|
|
2922 |
//remove duplicates childrens
|
|
|
2923 |
{
|
|
|
2924 |
QSet<QStandardItem *> seen;
|
|
|
2925 |
while (!stack.isEmpty()) {
|
|
|
2926 |
QStandardItem *itm = stack.pop();
|
|
|
2927 |
if (seen.contains(itm))
|
|
|
2928 |
continue;
|
|
|
2929 |
seen.insert(itm);
|
|
|
2930 |
|
|
|
2931 |
const QVector<QStandardItem*> &childList = itm->d_func()->children;
|
|
|
2932 |
for (int i = 0; i < childList.count(); ++i) {
|
|
|
2933 |
QStandardItem *chi = childList.at(i);
|
|
|
2934 |
if (chi) {
|
|
|
2935 |
QSet<QStandardItem *>::iterator it = itemsSet.find(chi);
|
|
|
2936 |
if (it != itemsSet.end()) {
|
|
|
2937 |
itemsSet.erase(it);
|
|
|
2938 |
}
|
|
|
2939 |
stack.push(chi);
|
|
|
2940 |
}
|
|
|
2941 |
}
|
|
|
2942 |
}
|
|
|
2943 |
}
|
|
|
2944 |
|
|
|
2945 |
stack.reserve(itemsSet.count());
|
|
|
2946 |
foreach (QStandardItem *item, itemsSet) {
|
|
|
2947 |
stack.push(item);
|
|
|
2948 |
}
|
|
|
2949 |
|
|
|
2950 |
//stream everything recursively
|
|
|
2951 |
while (!stack.isEmpty()) {
|
|
|
2952 |
QStandardItem *item = stack.pop();
|
|
|
2953 |
if(itemsSet.contains(item)) { //if the item is selection 'top-level', strem its position
|
|
|
2954 |
stream << item->row() << item->column();
|
|
|
2955 |
}
|
|
|
2956 |
if(item) {
|
|
|
2957 |
stream << *item << item->columnCount() << item->d_ptr->children.count();
|
|
|
2958 |
stack += item->d_ptr->children;
|
|
|
2959 |
} else {
|
|
|
2960 |
QStandardItem dummy;
|
|
|
2961 |
stream << dummy << 0 << 0;
|
|
|
2962 |
}
|
|
|
2963 |
}
|
|
|
2964 |
|
|
|
2965 |
data->setData(format, encoded);
|
|
|
2966 |
return data;
|
|
|
2967 |
}
|
|
|
2968 |
|
|
|
2969 |
|
|
|
2970 |
/* \internal
|
|
|
2971 |
Used by QStandardItemModel::dropMimeData
|
|
|
2972 |
stream out an item and his children
|
|
|
2973 |
*/
|
|
|
2974 |
void QStandardItemModelPrivate::decodeDataRecursive(QDataStream &stream, QStandardItem *item)
|
|
|
2975 |
{
|
|
|
2976 |
int colCount, childCount;
|
|
|
2977 |
stream >> *item;
|
|
|
2978 |
stream >> colCount >> childCount;
|
|
|
2979 |
item->setColumnCount(colCount);
|
|
|
2980 |
|
|
|
2981 |
int childPos = childCount;
|
|
|
2982 |
|
|
|
2983 |
while(childPos > 0) {
|
|
|
2984 |
childPos--;
|
|
|
2985 |
QStandardItem *child = createItem();
|
|
|
2986 |
decodeDataRecursive(stream, child);
|
|
|
2987 |
item->setChild( childPos / colCount, childPos % colCount, child);
|
|
|
2988 |
}
|
|
|
2989 |
}
|
|
|
2990 |
|
|
|
2991 |
|
|
|
2992 |
/*!
|
|
|
2993 |
\reimp
|
|
|
2994 |
*/
|
|
|
2995 |
bool QStandardItemModel::dropMimeData(const QMimeData *data, Qt::DropAction action,
|
|
|
2996 |
int row, int column, const QModelIndex &parent)
|
|
|
2997 |
{
|
|
|
2998 |
Q_D(QStandardItemModel);
|
|
|
2999 |
// check if the action is supported
|
|
|
3000 |
if (!data || !(action == Qt::CopyAction || action == Qt::MoveAction))
|
|
|
3001 |
return false;
|
|
|
3002 |
// check if the format is supported
|
|
|
3003 |
QString format = QLatin1String("application/x-qstandarditemmodeldatalist");
|
|
|
3004 |
if (!data->hasFormat(format))
|
|
|
3005 |
return QAbstractItemModel::dropMimeData(data, action, row, column, parent);
|
|
|
3006 |
|
|
|
3007 |
if (row > rowCount(parent))
|
|
|
3008 |
row = rowCount(parent);
|
|
|
3009 |
if (row == -1)
|
|
|
3010 |
row = rowCount(parent);
|
|
|
3011 |
if (column == -1)
|
|
|
3012 |
column = 0;
|
|
|
3013 |
|
|
|
3014 |
// decode and insert
|
|
|
3015 |
QByteArray encoded = data->data(format);
|
|
|
3016 |
QDataStream stream(&encoded, QIODevice::ReadOnly);
|
|
|
3017 |
|
|
|
3018 |
|
|
|
3019 |
//code based on QAbstractItemModel::decodeData
|
|
|
3020 |
// adapted to work with QStandardItem
|
|
|
3021 |
int top = INT_MAX;
|
|
|
3022 |
int left = INT_MAX;
|
|
|
3023 |
int bottom = 0;
|
|
|
3024 |
int right = 0;
|
|
|
3025 |
QVector<int> rows, columns;
|
|
|
3026 |
QVector<QStandardItem *> items;
|
|
|
3027 |
|
|
|
3028 |
while (!stream.atEnd()) {
|
|
|
3029 |
int r, c;
|
|
|
3030 |
QStandardItem *item = d->createItem();
|
|
|
3031 |
stream >> r >> c;
|
|
|
3032 |
d->decodeDataRecursive(stream, item);
|
|
|
3033 |
|
|
|
3034 |
rows.append(r);
|
|
|
3035 |
columns.append(c);
|
|
|
3036 |
items.append(item);
|
|
|
3037 |
top = qMin(r, top);
|
|
|
3038 |
left = qMin(c, left);
|
|
|
3039 |
bottom = qMax(r, bottom);
|
|
|
3040 |
right = qMax(c, right);
|
|
|
3041 |
}
|
|
|
3042 |
|
|
|
3043 |
// insert the dragged items into the table, use a bit array to avoid overwriting items,
|
|
|
3044 |
// since items from different tables can have the same row and column
|
|
|
3045 |
int dragRowCount = 0;
|
|
|
3046 |
int dragColumnCount = right - left + 1;
|
|
|
3047 |
|
|
|
3048 |
// Compute the number of continuous rows upon insertion and modify the rows to match
|
|
|
3049 |
QVector<int> rowsToInsert(bottom + 1);
|
|
|
3050 |
for (int i = 0; i < rows.count(); ++i)
|
|
|
3051 |
rowsToInsert[rows.at(i)] = 1;
|
|
|
3052 |
for (int i = 0; i < rowsToInsert.count(); ++i) {
|
|
|
3053 |
if (rowsToInsert[i] == 1){
|
|
|
3054 |
rowsToInsert[i] = dragRowCount;
|
|
|
3055 |
++dragRowCount;
|
|
|
3056 |
}
|
|
|
3057 |
}
|
|
|
3058 |
for (int i = 0; i < rows.count(); ++i)
|
|
|
3059 |
rows[i] = top + rowsToInsert[rows[i]];
|
|
|
3060 |
|
|
|
3061 |
QBitArray isWrittenTo(dragRowCount * dragColumnCount);
|
|
|
3062 |
|
|
|
3063 |
// make space in the table for the dropped data
|
|
|
3064 |
int colCount = columnCount(parent);
|
|
|
3065 |
if (colCount < dragColumnCount + column) {
|
|
|
3066 |
insertColumns(colCount, dragColumnCount + column - colCount, parent);
|
|
|
3067 |
colCount = columnCount(parent);
|
|
|
3068 |
}
|
|
|
3069 |
insertRows(row, dragRowCount, parent);
|
|
|
3070 |
|
|
|
3071 |
row = qMax(0, row);
|
|
|
3072 |
column = qMax(0, column);
|
|
|
3073 |
|
|
|
3074 |
QStandardItem *parentItem = itemFromIndex (parent);
|
|
|
3075 |
if (!parentItem)
|
|
|
3076 |
parentItem = invisibleRootItem();
|
|
|
3077 |
|
|
|
3078 |
QVector<QPersistentModelIndex> newIndexes(items.size());
|
|
|
3079 |
// set the data in the table
|
|
|
3080 |
for (int j = 0; j < items.size(); ++j) {
|
|
|
3081 |
int relativeRow = rows.at(j) - top;
|
|
|
3082 |
int relativeColumn = columns.at(j) - left;
|
|
|
3083 |
int destinationRow = relativeRow + row;
|
|
|
3084 |
int destinationColumn = relativeColumn + column;
|
|
|
3085 |
int flat = (relativeRow * dragColumnCount) + relativeColumn;
|
|
|
3086 |
// if the item was already written to, or we just can't fit it in the table, create a new row
|
|
|
3087 |
if (destinationColumn >= colCount || isWrittenTo.testBit(flat)) {
|
|
|
3088 |
destinationColumn = qBound(column, destinationColumn, colCount - 1);
|
|
|
3089 |
destinationRow = row + dragRowCount;
|
|
|
3090 |
insertRows(row + dragRowCount, 1, parent);
|
|
|
3091 |
flat = (dragRowCount * dragColumnCount) + relativeColumn;
|
|
|
3092 |
isWrittenTo.resize(++dragRowCount * dragColumnCount);
|
|
|
3093 |
}
|
|
|
3094 |
if (!isWrittenTo.testBit(flat)) {
|
|
|
3095 |
newIndexes[j] = index(destinationRow, destinationColumn, parentItem->index());
|
|
|
3096 |
isWrittenTo.setBit(flat);
|
|
|
3097 |
}
|
|
|
3098 |
}
|
|
|
3099 |
|
|
|
3100 |
for(int k = 0; k < newIndexes.size(); k++) {
|
|
|
3101 |
if (newIndexes.at(k).isValid()) {
|
|
|
3102 |
parentItem->setChild(newIndexes.at(k).row(), newIndexes.at(k).column(), items.at(k));
|
|
|
3103 |
} else {
|
|
|
3104 |
delete items.at(k);
|
|
|
3105 |
}
|
|
|
3106 |
}
|
|
|
3107 |
|
|
|
3108 |
return true;
|
|
|
3109 |
}
|
|
|
3110 |
|
|
|
3111 |
QT_END_NAMESPACE
|
|
|
3112 |
|
|
|
3113 |
#include "moc_qstandarditemmodel.cpp"
|
|
|
3114 |
|
|
|
3115 |
#endif // QT_NO_STANDARDITEMMODEL
|