--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/qt3support/widgets/q3header.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,2040 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt3Support module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "q3header.h"
+#ifndef QT_NO_HEADER
+#include "qapplication.h"
+#include "qbitarray.h"
+#include "qcursor.h"
+#include "qdrawutil.h"
+#include "qevent.h"
+#include "qpainter.h"
+#include "qpixmap.h"
+#include "qstyle.h"
+#include "qstyleoption.h"
+#include "qvector.h"
+
+QT_BEGIN_NAMESPACE
+
+class Q3HeaderData
+{
+public:
+ Q3HeaderData(int n)
+ {
+ count = n;
+ sizes.resize(n);
+ positions.resize(n);
+ labels.resize(n);
+ nullStringLabels.resize(n);
+ icons.resize(n);
+ i2s.resize(n);
+ s2i.resize(n);
+ clicks.resize(n);
+ resize.resize(n);
+ int p =0;
+ for (int i = 0; i < n; i ++) {
+ sizes[i] = 88;
+ i2s[i] = i;
+ s2i[i] = i;
+ positions[i] = p;
+ p += sizes[i];
+ }
+ clicks_default = true;
+ resize_default = true;
+ clicks.fill(clicks_default);
+ resize.fill(resize_default);
+ move = true;
+ sortSection = -1;
+ sortDirection = true;
+ positionsDirty = true;
+ lastPos = 0;
+ fullSize = -2;
+ pos_dirty = false;
+ is_a_table_header = false;
+ focusIdx = 0;
+ }
+ ~Q3HeaderData()
+ {
+ for (int i = 0; i < icons.size(); ++i)
+ delete icons.at(i);
+ }
+
+
+ QVector<int> sizes;
+ int height; // we abuse the heights as widths for vertical layout
+ bool heightDirty;
+ QVector<int> positions; // sorted by index
+ QVector<QString> labels;
+ QVector<QIcon *> icons;
+ QVector<int> i2s;
+ QVector<int> s2i;
+
+ QBitArray clicks;
+ QBitArray resize;
+ QBitArray nullStringLabels;
+ uint move : 1;
+ uint clicks_default : 1; // default value for new clicks bits
+ uint resize_default : 1; // default value for new resize bits
+ uint pos_dirty : 1;
+ uint is_a_table_header : 1;
+ bool sortDirection;
+ bool positionsDirty;
+ int sortSection;
+ int count;
+ int lastPos;
+ int fullSize;
+ int focusIdx;
+ int pressDelta;
+
+ int sectionAt(int pos) {
+ // positions is sorted by index, not by section
+ if (!count)
+ return -1;
+ int l = 0;
+ int r = count - 1;
+ int i = ((l+r+1) / 2);
+ while (r - l) {
+ if (positions[i] > pos)
+ r = i -1;
+ else
+ l = i;
+ i = ((l+r+1) / 2);
+ }
+ if (positions[i] <= pos && pos <= positions[i] + sizes[i2s[i]])
+ return i2s[i];
+ return -1;
+ }
+};
+
+static QStyleOptionHeader getStyleOption(const Q3Header *header, int section)
+{
+ QStyleOptionHeader opt;
+ opt.init(header);
+ opt.section = section;
+ opt.textAlignment = Qt::AlignVCenter;
+ opt.iconAlignment = Qt::AlignVCenter;
+ if (header->iconSet(section))
+ opt.icon = *header->iconSet(section);
+ opt.text = header->label(section);
+ if (header->orientation() == Qt::Horizontal)
+ opt.state = QStyle::State_Horizontal;
+ return opt;
+}
+
+bool qt_get_null_label_bit(Q3HeaderData *data, int section)
+{
+ return data->nullStringLabels.testBit(section);
+}
+
+void qt_set_null_label_bit(Q3HeaderData *data, int section, bool b)
+{
+ data->nullStringLabels.setBit(section, b);
+}
+
+/*!
+ \class Q3Header
+ \brief The Q3Header class provides a header row or column, e.g. for
+ tables and listviews.
+
+ \compat
+
+ This class provides a header, e.g. a vertical header to display
+ row labels, or a horizontal header to display column labels. It is
+ used by Q3Table and Q3ListView for example.
+
+ A header is composed of one or more \e sections, each of which can
+ display a text label and an \link QIcon icon\endlink. A sort
+ indicator (an arrow) can also be displayed using
+ setSortIndicator().
+
+ Sections are added with addLabel() and removed with removeLabel().
+ The label and icon are set in addLabel() and can be changed
+ later with setLabel(). Use count() to retrieve the number of
+ sections in the header.
+
+ The orientation of the header is set with setOrientation(). If
+ setStretchEnabled() is true, the sections will expand to take up
+ the full width (height for vertical headers) of the header. The
+ user can resize the sections manually if setResizeEnabled() is
+ true. Call adjustHeaderSize() to have the sections resize to
+ occupy the full width (or height).
+
+ A section can be moved with moveSection(). If setMovingEnabled()
+ is true (the default)the user may drag a section from one position
+ to another. If a section is moved, the index positions at which
+ sections were added (with addLabel()), may not be the same after the
+ move. You don't have to worry about this in practice because the
+ Q3Header API works in terms of section numbers, so it doesn't matter
+ where a particular section has been moved to.
+
+ If you want the current index position of a section call
+ mapToIndex() giving it the section number. (This is the number
+ returned by the addLabel() call which created the section.) If you
+ want to get the section number of a section at a particular index
+ position call mapToSection() giving it the index number.
+
+ Here's an example to clarify mapToSection() and mapToIndex():
+
+ \table
+ \header \i41 Index positions
+ \row \i 0 \i 1 \i 2 \i 3
+ \header \i41 Original section ordering
+ \row \i Sect 0 \i Sect 1 \i Sect 2 \i Sect 3
+ \header \i41 Ordering after the user moves a section
+ \row \i Sect 0 \i Sect 2 \i Sect 3 \i Sect 1
+ \endtable
+
+ \table
+ \header \i \e k \i mapToSection(\e k) \i mapToIndex(\e k)
+ \row \i 0 \i 0 \i 0
+ \row \i 1 \i 2 \i 3
+ \row \i 2 \i 3 \i 1
+ \row \i 3 \i 1 \i 2
+ \endtable
+
+ In the example above, if we wanted to find out which section is at
+ index position 3 we'd call mapToSection(3) and get a section
+ number of 1 since section 1 was moved. Similarly, if we wanted to
+ know which index position section 2 occupied we'd call
+ mapToIndex(2) and get an index of 1.
+
+ Q3Header provides the clicked(), pressed() and released() signals.
+ If the user changes the size of a section, the sizeChange() signal
+ is emitted. If you want to have a sizeChange() signal emitted
+ continuously whilst the user is resizing (rather than just after
+ the resizing is finished), use setTracking(). If the user moves a
+ section the indexChange() signal is emitted.
+
+ \sa Q3ListView Q3Table
+*/
+
+
+
+/*!
+ Constructs a horizontal header called \a name, with parent \a
+ parent.
+*/
+
+Q3Header::Q3Header(QWidget *parent, const char *name)
+ : QWidget(parent, name, Qt::WStaticContents)
+{
+ orient = Qt::Horizontal;
+ init(0);
+}
+
+/*!
+ Constructs a horizontal header called \a name, with \a n sections
+ and parent \a parent.
+*/
+
+Q3Header::Q3Header(int n, QWidget *parent, const char *name)
+ : QWidget(parent, name, Qt::WStaticContents)
+{
+ orient = Qt::Horizontal;
+ init(n);
+}
+
+/*!
+ Destroys the header and all its sections.
+*/
+
+Q3Header::~Q3Header()
+{
+ delete d;
+ d = 0;
+}
+
+/*! \reimp
+ */
+
+void Q3Header::showEvent(QShowEvent *e)
+{
+ calculatePositions();
+ QWidget::showEvent(e);
+}
+
+/*!
+ \fn void Q3Header::sizeChange(int section, int oldSize, int newSize)
+
+ This signal is emitted when the user has changed the size of a \a
+ section from \a oldSize to \a newSize. This signal is typically
+ connected to a slot that repaints the table or list that contains
+ the header.
+*/
+
+/*!
+ \fn void Q3Header::clicked(int section)
+
+ If isClickEnabled() is true, this signal is emitted when the user
+ clicks section \a section.
+
+ \sa pressed(), released()
+*/
+
+/*!
+ \fn void Q3Header::pressed(int section)
+
+ This signal is emitted when the user presses section \a section
+ down.
+
+ \sa released()
+*/
+
+/*!
+ \fn void Q3Header::released(int section)
+
+ This signal is emitted when section \a section is released.
+
+ \sa pressed()
+*/
+
+
+/*!
+ \fn void Q3Header::indexChange(int section, int fromIndex, int toIndex)
+
+ This signal is emitted when the user moves section \a section from
+ index position \a fromIndex, to index position \a toIndex.
+*/
+
+/*!
+ \fn void Q3Header::moved(int fromIndex, int toIndex)
+
+ Use indexChange() instead.
+
+ This signal is emitted when the user has moved the section which
+ is displayed at the index \a fromIndex to the index \a toIndex.
+*/
+
+/*!
+ \fn void Q3Header::sectionClicked(int index)
+
+ Use clicked() instead.
+
+ This signal is emitted when a part of the header is clicked. \a
+ index is the index at which the section is displayed.
+
+ In a list view this signal would typically be connected to a slot
+ that sorts the specified column (or row).
+*/
+
+/*! \fn int Q3Header::cellSize(int) const
+
+ Use sectionSize() instead.
+
+ Returns the size in pixels of the section that is displayed at
+ the index \a i.
+*/
+
+/*!
+ \fn void Q3Header::sectionHandleDoubleClicked(int section)
+
+ This signal is emitted when the user doubleclicks on the edge
+ (handle) of section \a section.
+*/
+
+/*!
+
+ Use sectionPos() instead.
+
+ Returns the position in pixels of the section that is displayed at the
+ index \a i. The position is measured from the start of the header.
+*/
+
+int Q3Header::cellPos(int i) const
+{
+ if (i == count() && i > 0)
+ return d->positions[i-1] + d->sizes[d->i2s[i-1]]; // compatibility
+ return sectionPos(mapToSection(i));
+}
+
+
+/*!
+ \property Q3Header::count
+ \brief the number of sections in the header
+*/
+
+int Q3Header::count() const
+{
+ return d->count;
+}
+
+
+/*!
+ \property Q3Header::tracking
+ \brief whether the sizeChange() signal is emitted continuously
+
+ If tracking is on, the sizeChange() signal is emitted continuously
+ while the mouse is moved (i.e. when the header is resized),
+ otherwise it is only emitted when the mouse button is released at
+ the end of resizing.
+
+ Tracking defaults to false.
+*/
+
+
+/*
+ Initializes with \a n columns.
+*/
+void Q3Header::init(int n)
+{
+ state = Idle;
+ cachedPos = 0; // unused
+ d = new Q3HeaderData(n);
+ d->height = 0;
+ d->heightDirty = true;
+ offs = 0;
+ if(reverse())
+ offs = d->lastPos - width();
+ oldHandleIdx = oldHIdxSize = handleIdx = 0;
+
+ setMouseTracking(true);
+ trackingIsOn = false;
+ setBackgroundRole(QPalette::Button);
+ setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed));
+ setAttribute(Qt::WA_PaintOutsidePaintEvent);
+}
+
+/*!
+ \property Q3Header::orientation
+ \brief the header's orientation
+
+ The orientation is either Qt::Vertical or Qt::Horizontal (the
+ default).
+
+ Call setOrientation() before adding labels if you don't provide a
+ size parameter otherwise the sizes will be incorrect.
+*/
+
+void Q3Header::setOrientation(Qt::Orientation orientation)
+{
+ if (orient == orientation)
+ return;
+ orient = orientation;
+ if (orient == Qt::Horizontal)
+ setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed));
+ else
+ setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred));
+ update();
+ updateGeometry();
+}
+
+
+/*
+ Paints a rectangle starting at \a p, with length \s.
+*/
+void Q3Header::paintRect(int p, int s)
+{
+ QPainter paint(this);
+ paint.setPen(QPen(Qt::black, 1, Qt::DotLine));
+ if (reverse())
+ paint.drawRect(p - s, 3, s, height() - 5);
+ else if (orient == Qt::Horizontal)
+ paint.drawRect(p, 3, s, height() - 5);
+ else
+ paint.drawRect(3, p, height() - 5, s);
+}
+
+/*
+ Marks the division line at \a idx.
+*/
+void Q3Header::markLine(int idx)
+{
+ QPainter paint(this);
+ paint.setPen(QPen(Qt::black, 1, Qt::DotLine));
+ int MARKSIZE = style()->pixelMetric(QStyle::PM_HeaderMarkSize);
+ int p = pPos(idx);
+ int x = p - MARKSIZE/2;
+ int y = 2;
+ int x2 = p + MARKSIZE/2;
+ int y2 = height() - 3;
+ if (orient == Qt::Vertical) {
+ int t = x; x = y; y = t;
+ t = x2; x2 = y2; y2 = t;
+ }
+
+ paint.drawLine(x, y, x2, y);
+ paint.drawLine(x, y+1, x2, y+1);
+
+ paint.drawLine(x, y2, x2, y2);
+ paint.drawLine(x, y2-1, x2, y2-1);
+
+ paint.drawLine(x, y, x, y2);
+ paint.drawLine(x+1, y, x+1, y2);
+
+ paint.drawLine(x2, y, x2, y2);
+ paint.drawLine(x2-1, y, x2-1, y2);
+}
+
+/*
+ Removes the mark at the division line at \a idx.
+*/
+void Q3Header::unMarkLine(int idx)
+{
+ if (idx < 0)
+ return;
+ int MARKSIZE = style()->pixelMetric(QStyle::PM_HeaderMarkSize);
+ int p = pPos(idx);
+ int x = p - MARKSIZE/2;
+ int y = 2;
+ int x2 = p + MARKSIZE/2;
+ int y2 = height() - 3;
+ if (orient == Qt::Vertical) {
+ int t = x; x = y; y = t;
+ t = x2; x2 = y2; y2 = t;
+ }
+ repaint(x, y, x2-x+1, y2-y+1);
+}
+
+/*! \fn int Q3Header::cellAt(int) const
+
+ Use sectionAt() instead.
+
+ Returns the index at which the section is displayed, which contains
+ \a pos in widget coordinates, or -1 if \a pos is outside the header
+ sections.
+*/
+
+/*
+ Tries to find a line that is not a neighbor of \c handleIdx.
+*/
+int Q3Header::findLine(int c)
+{
+ int i = 0;
+ if (c > d->lastPos || (reverse() && c < 0)) {
+ return d->count;
+ } else {
+ int section = sectionAt(c);
+ if (section < 0)
+ return handleIdx;
+ i = d->s2i[section];
+ }
+ int MARKSIZE = style()->pixelMetric(QStyle::PM_HeaderMarkSize);
+ if (i == handleIdx)
+ return i;
+ if (i == handleIdx - 1 && pPos(handleIdx) - c > MARKSIZE/2)
+ return i;
+ if (i == handleIdx + 1 && c - pPos(i) > MARKSIZE/2)
+ return i + 1;
+ if (c - pPos(i) > pSize(i) / 2)
+ return i + 1;
+ else
+ return i;
+}
+
+/*!
+ Returns the handle at position \a p, or -1 if there is no handle at \a p.
+*/
+int Q3Header::handleAt(int p)
+{
+ int section = d->sectionAt(p);
+ if (section >= 0) {
+ int GripMargin = (bool)d->resize[section] ?
+ style()->pixelMetric(QStyle::PM_HeaderGripMargin) : 0;
+ int index = d->s2i[section];
+ if ((index > 0 && p < d->positions[index] + GripMargin) ||
+ (p > d->positions[index] + d->sizes[section] - GripMargin)) {
+ if (index > 0 && p < d->positions[index] + GripMargin)
+ section = d->i2s[--index];
+ // don't show icon if streaching is enabled it is at the end of the last section
+ if (d->resize.testBit(section) && (d->fullSize == -2 || index != count() - 1)) {
+ return section;
+ }
+ }
+ }
+
+ return -1;
+}
+
+/*!
+ Use moveSection() instead.
+
+ Moves the section that is currently displayed at index \a fromIdx
+ to index \a toIdx.
+*/
+
+void Q3Header::moveCell(int fromIdx, int toIdx)
+{
+ moveSection(mapToSection(fromIdx), toIdx);
+}
+
+
+
+/*!
+ Move and signal and repaint.
+ */
+
+void Q3Header::handleColumnMove(int fromIdx, int toIdx)
+{
+ int s = d->i2s[fromIdx];
+ if (fromIdx < toIdx)
+ toIdx++; //Convert to
+ QRect r = sRect(fromIdx);
+ r |= sRect(toIdx);
+ moveSection(s, toIdx);
+ update(r);
+ emit moved(fromIdx, toIdx);
+ emit indexChange(s, fromIdx, toIdx);
+}
+
+/*!
+ \reimp
+*/
+void Q3Header::keyPressEvent(QKeyEvent *e)
+{
+ int i = d->focusIdx;
+ if (e->key() == Qt::Key_Space) {
+ //don't do it if we're doing something with the mouse
+ if (state == Idle && d->clicks[d->i2s[d->focusIdx] ]) {
+ handleIdx = i;
+ state = Pressed;
+ repaint(sRect(handleIdx));
+ emit pressed(d->i2s[i]);
+ }
+ } else if ((orientation() == Qt::Horizontal && (e->key() == Qt::Key_Right || e->key() == Qt::Key_Left))
+ || (orientation() == Qt::Vertical && (e->key() == Qt::Key_Up || e->key() == Qt::Key_Down))) {
+ int dir = e->key() == Qt::Key_Right || e->key() == Qt::Key_Down ? 1 : -1;
+ int s = d->i2s[i];
+ if (e->state() & Qt::ControlButton && d->resize[s]) {
+ //resize
+ int step = e->state() & Qt::ShiftButton ? dir : 10*dir;
+ int c = d->positions[i] + d->sizes[s] + step;
+ handleColumnResize(i, c, true);
+ } else if (e->state() & (Qt::AltButton|Qt::MetaButton) && d->move) {
+ //move section
+ int i2 = (i + count() + dir) % count();
+ d->focusIdx = i2;
+ handleColumnMove(i, i2);
+ } else {
+ //focus on different section
+ QRect r = sRect(d->focusIdx);
+ d->focusIdx = (d->focusIdx + count() + dir) % count();
+ r |= sRect(d->focusIdx);
+ update(r);
+ }
+ } else {
+ e->ignore();
+ }
+}
+
+/*!
+ \reimp
+*/
+void Q3Header::keyReleaseEvent(QKeyEvent *e)
+{
+ switch (e->key()) {
+ case Qt::Key_Space:
+ //double check that this wasn't started with the mouse
+ if (state == Pressed && handleIdx == d->focusIdx) {
+ repaint(sRect(handleIdx));
+ int section = d->i2s[d->focusIdx];
+ emit released(section);
+ emit sectionClicked(handleIdx);
+ emit clicked(section);
+ state = Idle;
+ handleIdx = -1;
+ }
+ break;
+ default:
+ e->ignore();
+ }
+}
+
+
+/*!
+ \reimp
+*/
+void Q3Header::mousePressEvent(QMouseEvent *e)
+{
+ if (e->button() != Qt::LeftButton || state != Idle)
+ return;
+ oldHIdxSize = handleIdx;
+ handleIdx = 0;
+ int c = orient == Qt::Horizontal ? e->pos().x() : e->pos().y();
+ c += offset();
+ if (reverse())
+ c = d->lastPos - c;
+
+ int section = d->sectionAt(c);
+ if (section < 0)
+ return;
+ int GripMargin = (bool)d->resize[section] ?
+ style()->pixelMetric(QStyle::PM_HeaderGripMargin) : 0;
+ int index = d->s2i[section];
+
+ if ((index > 0 && c < d->positions[index] + GripMargin) ||
+ (c > d->positions[index] + d->sizes[section] - GripMargin)) {
+ if (c < d->positions[index] + GripMargin)
+ handleIdx = index-1;
+ else
+ handleIdx = index;
+ if (d->lastPos <= (orient == Qt::Horizontal ? width() :
+ height()) && d->fullSize != -2 && handleIdx == count() - 1) {
+ handleIdx = -1;
+ return;
+ }
+ oldHIdxSize = d->sizes[d->i2s[handleIdx]];
+ state = d->resize[d->i2s[handleIdx] ] ? Sliding : Blocked;
+ } else if (index >= 0) {
+ oldHandleIdx = handleIdx = index;
+ moveToIdx = -1;
+ state = d->clicks[d->i2s[handleIdx] ] ? Pressed : Blocked;
+ clickPos = c;
+ repaint(sRect(handleIdx));
+ if(oldHandleIdx != handleIdx)
+ repaint(sRect(oldHandleIdx));
+ emit pressed(section);
+ }
+
+ d->pressDelta = c - (d->positions[handleIdx] + d->sizes[d->i2s[handleIdx]]);
+}
+
+/*!
+ \reimp
+*/
+void Q3Header::mouseReleaseEvent(QMouseEvent *e)
+{
+ if (e->button() != Qt::LeftButton)
+ return;
+ int oldOldHandleIdx = oldHandleIdx;
+ State oldState = state;
+ state = Idle;
+ switch (oldState) {
+ case Pressed: {
+ int section = d->i2s[handleIdx];
+ emit released(section);
+ if (sRect(handleIdx).contains(e->pos())) {
+ oldHandleIdx = handleIdx;
+ emit sectionClicked(handleIdx);
+ emit clicked(section);
+ } else {
+ handleIdx = oldHandleIdx;
+ }
+ repaint(sRect(handleIdx));
+ if (oldOldHandleIdx != handleIdx)
+ repaint(sRect(oldOldHandleIdx));
+ } break;
+ case Sliding: {
+ int c = orient == Qt::Horizontal ? e->pos().x() : e->pos().y();
+ c += offset();
+ if (reverse())
+ c = d->lastPos - c;
+ handleColumnResize(handleIdx, c - d->pressDelta, true);
+ } break;
+ case Moving: {
+#ifndef QT_NO_CURSOR
+ unsetCursor();
+#endif
+ int section = d->i2s[handleIdx];
+ if (handleIdx != moveToIdx && moveToIdx != -1) {
+ moveSection(section, moveToIdx);
+ handleIdx = oldHandleIdx;
+ emit moved(handleIdx, moveToIdx);
+ emit indexChange(section, handleIdx, moveToIdx);
+ emit released(section);
+ repaint(); // a bit overkill, but removes the handle as well
+ } else {
+ if (sRect(handleIdx).contains(e->pos())) {
+ oldHandleIdx = handleIdx;
+ emit released(section);
+ emit sectionClicked(handleIdx);
+ emit clicked(section);
+ } else {
+ handleIdx = oldHandleIdx;
+ }
+ repaint(sRect(handleIdx));
+ if(oldOldHandleIdx != handleIdx)
+ repaint(sRect(oldOldHandleIdx));
+ }
+ break;
+ }
+ case Blocked:
+ //nothing
+ break;
+ default:
+ // empty, probably. Idle, at any rate.
+ break;
+ }
+}
+
+/*!
+ \reimp
+*/
+void Q3Header::mouseMoveEvent(QMouseEvent *e)
+{
+ int c = orient == Qt::Horizontal ? e->pos().x() : e->pos().y();
+ c += offset();
+
+ int pos = c;
+ if(reverse())
+ c = d->lastPos - c;
+
+ switch(state) {
+ case Idle:
+#ifndef QT_NO_CURSOR
+ if (handleAt(c) < 0)
+ unsetCursor();
+ else if (orient == Qt::Horizontal)
+ setCursor(Qt::splitHCursor);
+ else
+ setCursor(Qt::splitVCursor);
+#endif
+ break;
+ case Blocked:
+ break;
+ case Pressed:
+ if (QABS(c - clickPos) > 4 && d->move) {
+ state = Moving;
+ moveToIdx = -1;
+#ifndef QT_NO_CURSOR
+ if (orient == Qt::Horizontal)
+ setCursor(Qt::SizeHorCursor);
+ else
+ setCursor(Qt::SizeVerCursor);
+#endif
+ }
+ break;
+ case Sliding:
+ handleColumnResize(handleIdx, c, false, false);
+ break;
+ case Moving: {
+ int newPos = findLine(pos);
+ if (newPos != moveToIdx) {
+ if (moveToIdx == handleIdx || moveToIdx == handleIdx + 1)
+ repaint(sRect(handleIdx));
+ else
+ unMarkLine(moveToIdx);
+ moveToIdx = newPos;
+ if (moveToIdx == handleIdx || moveToIdx == handleIdx + 1)
+ paintRect(pPos(handleIdx), pSize(handleIdx));
+ else
+ markLine(moveToIdx);
+ }
+ break;
+ }
+ default:
+ qWarning("Q3Header::mouseMoveEvent: (%s) unknown state", objectName().toLocal8Bit().data());
+ break;
+ }
+}
+
+/*! \reimp */
+
+void Q3Header::mouseDoubleClickEvent(QMouseEvent *e)
+{
+ int p = orient == Qt::Horizontal ? e->pos().x() : e->pos().y();
+ p += offset();
+ if(reverse())
+ p = d->lastPos - p;
+
+ int header = handleAt(p);
+ if (header >= 0)
+ emit sectionHandleDoubleClicked(header);
+}
+
+/*
+ Handles resizing of sections. This means it redraws the relevant parts
+ of the header.
+*/
+
+void Q3Header::handleColumnResize(int index, int c, bool final, bool recalcAll)
+{
+ int section = d->i2s[index];
+ int GripMargin = (bool)d->resize[section] ?
+ style()->pixelMetric(QStyle::PM_HeaderGripMargin) : 0;
+ int lim = d->positions[index] + 2*GripMargin;
+ if (c == lim)
+ return;
+ if (c < lim)
+ c = lim;
+ int oldSize = d->sizes[section];
+ int newSize = c - d->positions[index];
+ d->sizes[section] = newSize;
+
+ calculatePositions(!recalcAll, !recalcAll ? section : 0);
+
+ int pos = d->positions[index]-offset();
+ if(reverse()) // repaint the whole thing. Could be optimized (lars)
+ repaint(0, 0, width(), height());
+ else if (orient == Qt::Horizontal)
+ repaint(pos, 0, width() - pos, height());
+ else
+ repaint(0, pos, width(), height() - pos);
+
+ int os = 0, ns = 0;
+ if (tracking() && oldSize != newSize) {
+ os = oldSize;
+ ns = newSize;
+ emit sizeChange(section, oldSize, newSize);
+ } else if (!tracking() && final && oldHIdxSize != newSize) {
+ os = oldHIdxSize;
+ ns = newSize;
+ emit sizeChange(section, oldHIdxSize, newSize);
+ }
+
+ if (os != ns) {
+ if (d->fullSize == -1) {
+ d->fullSize = count() - 1;
+ adjustHeaderSize();
+ d->fullSize = -1;
+ } else if (d->fullSize >= 0) {
+ int old = d->fullSize;
+ d->fullSize = count() - 1;
+ adjustHeaderSize();
+ d->fullSize = old;
+ }
+ }
+}
+
+/*!
+ Returns the rectangle covered by the section at index \a index.
+*/
+
+QRect Q3Header::sRect(int index)
+{
+
+ int section = mapToSection(index);
+ if (count() > 0 && index >= count()) {
+ int s = d->positions[count() - 1] - offset() +
+ d->sizes[mapToSection(count() - 1)];
+ if (orient == Qt::Horizontal)
+ return QRect(s, 0, width() - s + 10, height());
+ else
+ return QRect(0, s, width(), height() - s + 10);
+ }
+ if (section < 0)
+ return rect(); // ### eeeeevil
+
+ if (reverse())
+ return QRect( d->lastPos - d->positions[index] - d->sizes[section] -offset(),
+ 0, d->sizes[section], height());
+ else if (orient == Qt::Horizontal)
+ return QRect( d->positions[index]-offset(), 0, d->sizes[section], height());
+ else
+ return QRect(0, d->positions[index]-offset(), width(), d->sizes[section]);
+}
+
+/*!
+ Returns the rectangle covered by section \a section.
+*/
+
+QRect Q3Header::sectionRect(int section) const
+{
+ int index = mapToIndex(section);
+ if (section < 0)
+ return rect(); // ### eeeeevil
+
+ if (reverse())
+ return QRect( d->lastPos - d->positions[index] - d->sizes[section] -offset(),
+ 0, d->sizes[section], height());
+ else if (orient == Qt::Horizontal)
+ return QRect( d->positions[index]-offset(), 0, d->sizes[section], height());
+ else
+ return QRect(0, d->positions[index]-offset(), width(), d->sizes[section]);
+}
+
+/*!
+ \overload
+
+ Sets the icon for section \a section to \a icon and the text to
+ \a s. The section's width is set to \a size if \a size \>= 0;
+ otherwise it is left unchanged.
+
+ If the section does not exist, nothing happens.
+*/
+
+void Q3Header::setLabel(int section, const QIcon& icon,
+ const QString &s, int size)
+{
+ if (section < 0 || section >= count())
+ return;
+ delete d->icons[section];
+ d->icons[section] = new QIcon(icon);
+ setLabel(section, s, size);
+}
+
+/*!
+ Sets the text of section \a section to \a s. The section's width
+ is set to \a size if \a size \>= 0; otherwise it is left
+ unchanged. Any icon set that has been set for this section remains
+ unchanged.
+
+ If the section does not exist, nothing happens.
+*/
+void Q3Header::setLabel(int section, const QString &s, int size)
+{
+ if (section < 0 || section >= count())
+ return;
+ d->labels[section] = s;
+ d->nullStringLabels.setBit(section, s.isNull());
+
+ setSectionSizeAndHeight(section, size);
+
+ if (updatesEnabled()) {
+ updateGeometry();
+ calculatePositions();
+ update();
+ }
+}
+
+
+bool qt_qheader_label_return_null_strings = false;
+/*!
+ Returns the text for section \a section. If the section does not
+ exist, returns an empty string.
+*/
+QString Q3Header::label(int section) const
+{
+ if (section < 0 || section >= count())
+ return QString();
+ QString l = d->labels.value(section);
+ if (!l.isNull())
+ return l;
+ if (d->nullStringLabels.testBit(section) || qt_qheader_label_return_null_strings)
+ return l;
+ else
+ return QString::number(section + 1);
+}
+
+/*!
+ Returns the icon set for section \a section. If the section does
+ not exist, 0 is returned.
+*/
+
+QIcon *Q3Header::iconSet(int section) const
+{
+ if (section < 0 || section >= count())
+ return 0;
+ return d->icons[section];
+}
+
+
+/*!
+ \overload
+
+ Adds a new section with icon \a icon and label text \a s.
+ Returns the index position where the section was added (at the
+ right for horizontal headers, at the bottom for vertical headers).
+ The section's width is set to \a size, unless size is negative in
+ which case the size is calculated taking account of the size of
+ the text.
+*/
+int Q3Header::addLabel(const QIcon& icon, const QString &s, int size)
+{
+ int n = count() + 1;
+ d->icons.resize(n + 1);
+ d->icons.insert(n - 1, new QIcon(icon));
+ return addLabel(s, size);
+}
+
+/*!
+ Removes section \a section. If the section does not exist, nothing
+ happens.
+*/
+void Q3Header::removeLabel(int section)
+{
+ if (section < 0 || section > count() - 1)
+ return;
+
+ int index = d->s2i[section];
+ int n = --d->count;
+ int i;
+ for (i = section; i < n; ++i) {
+ d->sizes[i] = d->sizes[i+1];
+ d->labels[i] = d->labels[i+1];
+ d->labels[i+1] = QString();
+ d->nullStringLabels[i] = d->nullStringLabels[i+1];
+ d->nullStringLabels[i+1] = 0;
+ d->icons[i] = d->icons[i+1];
+ d->icons[i+1] = 0;
+ }
+
+ d->sizes.resize(n);
+ d->positions.resize(n);
+ d->labels.resize(n);
+ d->nullStringLabels.resize(n);
+ d->icons.resize(n);
+
+ for (i = section; i < n; ++i)
+ d->s2i[i] = d->s2i[i+1];
+ d->s2i.resize(n);
+
+ if (updatesEnabled()) {
+ for (i = 0; i < n; ++i)
+ if (d->s2i[i] > index)
+ --d->s2i[i];
+ }
+
+ for (i = index; i < n; ++i)
+ d->i2s[i] = d->i2s[i+1];
+ d->i2s.resize(n);
+
+ if (updatesEnabled()) {
+ for (i = 0; i < n; ++i)
+ if (d->i2s[i] > section)
+ --d->i2s[i];
+ }
+
+ if (updatesEnabled()) {
+ updateGeometry();
+ calculatePositions();
+ update();
+ }
+}
+
+QSize Q3Header::sectionSizeHint(int section, const QFontMetrics& fm) const
+{
+ int iw = 0;
+ int ih = 0;
+ if (d->icons[section] != 0) {
+ QSize isize = d->icons[section]->pixmap(style()->pixelMetric(QStyle::PM_SmallIconSize),
+ QIcon::Normal).size();
+ iw = isize.width() + 2;
+ ih = isize.height();
+ }
+
+ QRect bound;
+ QString label = d->labels[section];
+ if (!label.isNull() || d->nullStringLabels.testBit(section)) {
+ int lines = label.count(QLatin1Char('\n')) + 1;
+ int w = 0;
+ if (lines > 1) {
+ bound.setHeight(fm.height() + fm.lineSpacing() * (lines - 1));
+ QStringList list = label.split(QLatin1Char('\n'));
+ for (int i=0; i < list.count(); ++i) {
+ int tmpw = fm.width(list.at(i));
+ w = QMAX(w, tmpw);
+ }
+ } else {
+ bound.setHeight(fm.height());
+ w = fm.width(label);
+ }
+ bound.setWidth(w);
+ }
+ int arrowWidth = 0;
+ if (d->sortSection == section)
+ arrowWidth = ((orient == Qt::Horizontal ? height() : width()) / 2) + 8;
+ int height = qMax(bound.height() + 2, ih) + 4;
+ int width = bound.width() + style()->pixelMetric(QStyle::PM_HeaderMargin) * 4
+ + iw + arrowWidth;
+ return QSize(width, height);
+}
+
+/*
+ Sets d->sizes[\a section] to a bounding rect based on its size
+ hint and font metrics, but constrained by \a size. It also updates
+ d->height.
+*/
+void Q3Header::setSectionSizeAndHeight(int section, int size)
+{
+ QSize sz = sectionSizeHint(section, fontMetrics());
+
+ if (size < 0) {
+ if (d->sizes[section] < 0)
+ d->sizes[section] = (orient == Qt::Horizontal) ? sz.width()
+ : sz.height();
+ } else {
+ d->sizes[section] = size;
+ }
+
+ int newHeight = (orient == Qt::Horizontal) ? sz.height() : sz.width();
+ if (newHeight > d->height) {
+ d->height = newHeight;
+ } else if (newHeight < d->height) {
+ /*
+ We could be smarter, but we aren't. This makes a difference
+ only for users with many columns and '\n's in their headers
+ at the same time.
+ */
+ d->heightDirty = true;
+ }
+}
+
+/*!
+ Adds a new section with label text \a s. Returns the index
+ position where the section was added (at the right for horizontal
+ headers, at the bottom for vertical headers). The section's width
+ is set to \a size. If \a size \< 0, an appropriate size for the
+ text \a s is chosen.
+*/
+int Q3Header::addLabel(const QString &s, int size)
+{
+ int n = ++d->count;
+ if ((int)d->icons.size() < n )
+ d->icons.resize(n);
+ if ((int)d->sizes.size() < n ) {
+ d->labels.resize(n);
+ d->nullStringLabels.resize(n);
+ d->sizes.resize(n);
+ d->positions.resize(n);
+ d->i2s.resize(n);
+ d->s2i.resize(n);
+ d->clicks.resize(n);
+ d->resize.resize(n);
+ }
+ int section = d->count - 1;
+ if (!d->is_a_table_header || !s.isNull()) {
+ d->labels.insert(section, s);
+ d->nullStringLabels.setBit(section, s.isNull());
+ }
+
+ if (size >= 0 && s.isNull() && d->is_a_table_header) {
+ d->sizes[section] = size;
+ } else {
+ d->sizes[section] = -1;
+ setSectionSizeAndHeight(section, size);
+ }
+
+ int index = section;
+ d->positions[index] = d->lastPos;
+
+ d->s2i[section] = index;
+ d->i2s[index] = section;
+ d->clicks.setBit(section, d->clicks_default);
+ d->resize.setBit(section, d->resize_default);
+
+ if (updatesEnabled()) {
+ updateGeometry();
+ calculatePositions();
+ update();
+ }
+ return index;
+}
+
+void Q3Header::resizeArrays(int size)
+{
+ d->icons.resize(size);
+ d->labels.resize(size);
+ d->nullStringLabels.resize(size);
+ d->sizes.resize(size);
+ d->positions.resize(size);
+ d->i2s.resize(size);
+ d->s2i.resize(size);
+ d->clicks.resize(size);
+ d->resize.resize(size);
+}
+
+void Q3Header::setIsATableHeader(bool b)
+{
+ d->is_a_table_header = b;
+}
+
+/*! \reimp */
+QSize Q3Header::sizeHint() const
+{
+ int width;
+ int height;
+
+ ensurePolished();
+ QFontMetrics fm = fontMetrics();
+
+ if (d->heightDirty) {
+ d->height = fm.lineSpacing() + 6;
+ for (int i = 0; i < count(); i++) {
+ int h = orient == Qt::Horizontal ?
+ sectionSizeHint(i, fm).height() : sectionSizeHint(i, fm).width();
+ d->height = qMax(d->height, h);
+ }
+ d->heightDirty = false;
+ }
+
+ if (orient == Qt::Horizontal) {
+ height = fm.lineSpacing() + 6;
+ width = 0;
+ height = qMax(height, d->height);
+ for (int i = 0; i < count(); i++)
+ width += d->sizes[i];
+ } else {
+ width = fm.width(QLatin1Char(' '));
+ height = 0;
+ width = qMax(width, d->height);
+ for (int i = 0; i < count(); i++)
+ height += d->sizes[i];
+ }
+ QStyleOptionHeader opt = getStyleOption(this, 0);
+ return style()->sizeFromContents(QStyle::CT_Q3Header, &opt, QSize(width, height),
+ this).expandedTo(QApplication::globalStrut());
+}
+
+/*!
+ \property Q3Header::offset
+ \brief the header's left-most (or top-most) visible pixel
+
+ Setting this property will scroll the header so that \e offset
+ becomes the left-most (or top-most for vertical headers) visible
+ pixel.
+*/
+int Q3Header::offset() const
+{
+ if (reverse())
+ return d->lastPos - width() - offs;
+ return offs;
+}
+
+void Q3Header::setOffset(int x)
+{
+ int oldOff = offset();
+ offs = x;
+ if(d->lastPos < (orient == Qt::Horizontal ? width() : height()))
+ offs = 0;
+ else if (reverse())
+ offs = d->lastPos - width() - x;
+ if (orient == Qt::Horizontal)
+ scroll(oldOff-offset(), 0);
+ else
+ scroll(0, oldOff-offset());
+}
+
+
+
+/*
+ Returns the position of actual division line \a i in widget
+ coordinates. May return a position outside the widget.
+
+ Note that the last division line is numbered count(). (There is one
+ more line than the number of sections).
+*/
+int Q3Header::pPos(int i) const
+{
+ int pos;
+ if (i == count())
+ pos = d->lastPos;
+ else
+ pos = d->positions[i];
+ if (reverse())
+ pos = d->lastPos - pos;
+ return pos - offset();
+}
+
+
+/*
+ Returns the size of the section at index position \a i.
+*/
+int Q3Header::pSize(int i) const
+{
+ return d->sizes[d->i2s[i]];
+}
+
+/*!
+ Use mapToSection() instead.
+
+ Translates from actual index \a a (index at which the section is displayed) to
+ logical index of the section. Returns -1 if \a a is outside the legal range.
+
+ \sa mapToActual()
+*/
+
+int Q3Header::mapToLogical(int a) const
+{
+ return mapToSection(a);
+}
+
+
+/*!
+ Use mapToIndex() instead.
+
+ Translates from logical index \a l to actual index (index at which the section \a l is displayed) .
+ Returns -1 if \a l is outside the legal range.
+
+ \sa mapToLogical()
+*/
+
+int Q3Header::mapToActual(int l) const
+{
+ return mapToIndex(l);
+}
+
+
+/*!
+ Use resizeSection() instead.
+
+ Sets the size of the section \a section to \a s pixels.
+
+ \warning does not repaint or send out signals
+*/
+
+void Q3Header::setCellSize(int section, int s)
+{
+ if (section < 0 || section >= count())
+ return;
+ d->sizes[section] = s;
+ if (updatesEnabled())
+ calculatePositions();
+ else
+ d->positionsDirty = true;
+}
+
+
+/*!
+ If \a enable is true the user may resize section \a section;
+ otherwise the section may not be manually resized.
+
+ If \a section is negative (the default) then the \a enable value
+ is set for all existing sections and will be applied to any new
+ sections that are added.
+ Example:
+ \snippet doc/src/snippets/code/src_qt3support_widgets_q3header.cpp 0
+
+ If the user resizes a section, a sizeChange() signal is emitted.
+
+ \sa setMovingEnabled() setClickEnabled() setTracking()
+*/
+
+void Q3Header::setResizeEnabled(bool enable, int section)
+{
+ if (section < 0) {
+ d->resize.fill(enable);
+ // and future ones...
+ d->resize_default = enable;
+ } else if (section < count()) {
+ d->resize[section] = enable;
+ }
+}
+
+
+/*!
+ \property Q3Header::moving
+ \brief whether the header sections can be moved
+
+ If this property is true (the default) the user can move sections.
+ If the user moves a section the indexChange() signal is emitted.
+
+ \sa setClickEnabled(), setResizeEnabled()
+*/
+
+void Q3Header::setMovingEnabled(bool enable)
+{
+ d->move = enable;
+}
+
+
+/*!
+ If \a enable is true, any clicks on section \a section will result
+ in clicked() signals being emitted; otherwise the section will
+ ignore clicks.
+
+ If \a section is -1 (the default) then the \a enable value is set
+ for all existing sections and will be applied to any new sections
+ that are added.
+
+ \sa setMovingEnabled(), setResizeEnabled()
+*/
+
+void Q3Header::setClickEnabled(bool enable, int section)
+{
+ if (section < 0) {
+ d->clicks.fill(enable);
+ // and future ones...
+ d->clicks_default = enable;
+ } else if (section < count()) {
+ d->clicks[section] = enable;
+ }
+}
+
+
+/*!
+ Paints the section at position \a index, inside rectangle \a fr
+ (which uses widget coordinates) using painter \a p.
+
+ Calls paintSectionLabel().
+*/
+
+void Q3Header::paintSection(QPainter *p, int index, const QRect& fr)
+{
+ int section = mapToSection(index);
+ QStyleOptionHeader opt = getStyleOption(this, section);
+ opt.state |= QStyle::State_Raised;
+ opt.rect = fr;
+
+ if (section < 0) {
+ style()->drawControl(QStyle::CE_Header, &opt, p, this);
+ return;
+ }
+
+ if (sectionSize(section) <= 0)
+ return;
+
+ opt.state = (orient == Qt::Horizontal ? QStyle::State_Horizontal : QStyle::State_None);
+ if (d->sortSection == section)
+ opt.sortIndicator = d->sortDirection ? QStyleOptionHeader::SortDown : QStyleOptionHeader::SortUp;
+
+ if (isEnabled())
+ opt.state |= QStyle::State_Enabled;
+ if (isClickEnabled(section) && (state == Pressed || state == Moving) && index == handleIdx)
+ opt.state |= QStyle::State_Sunken; //currently pressed
+ if (!(opt.state & QStyle::State_Sunken))
+ opt.state |= QStyle::State_Raised;
+ p->setBrushOrigin(fr.topLeft());
+ if (d->clicks[section]) {
+ style()->drawControl(QStyle::CE_Header, &opt, p, this);
+ } else {
+ p->save();
+ p->setClipRect(fr); // hack to keep styles working
+ opt.rect.setRect(fr.x() + 1, fr.y(), fr.width(), fr.height());
+ style()->drawControl(QStyle::CE_Header, &opt, p, this);
+ if (orient == Qt::Horizontal) {
+ p->setPen(palette().color(QPalette::Mid));
+ p->drawLine(fr.x() - 1, fr.y() + fr.height() - 1,
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 1);
+ p->drawLine(fr.x() + fr.width() - 1, fr.y(),
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 1);
+ } else {
+ p->setPen(palette().color(QPalette::Mid));
+ p->drawLine(fr.x() + width() - 1, fr.y(),
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 1);
+ p->drawLine(fr.x(), fr.y() + fr.height() - 1,
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 1);
+ p->setPen(palette().color(QPalette::Light));
+ if (index > 0)
+ p->drawLine(fr.x(), fr.y(), fr.x() + fr.width() - 1, fr.y());
+ if (index == count() - 1) {
+ p->drawLine(fr.x(), fr.y() + fr.height() - 1,
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 1);
+ p->setPen(palette().color(QPalette::Mid));
+ p->drawLine(fr.x(), fr.y() + fr.height() - 2,
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 2);
+ }
+ }
+ p->restore();
+ }
+}
+
+/*!
+ Paints the label of the section at position \a index, inside
+ rectangle \a fr (which uses widget coordinates) using painter \a
+ p.
+
+ Called by paintSection()
+*/
+void Q3Header::paintSectionLabel(QPainter *p, int index, const QRect& fr)
+{
+ int section = mapToSection(index);
+ if (section < 0)
+ return;
+
+ int dx = 0, dy = 0;
+ QStyleOptionHeader opt = getStyleOption(this, section);
+ if (d->sortSection == section)
+ opt.sortIndicator = d->sortDirection ? QStyleOptionHeader::SortDown : QStyleOptionHeader::SortUp;
+ if (index == handleIdx && (state == Pressed || state == Moving)) {
+ dx = style()->pixelMetric(QStyle::PM_ButtonShiftHorizontal, &opt, this);
+ dy = style()->pixelMetric(QStyle::PM_ButtonShiftVertical, &opt, this);
+ opt.state |= QStyle::State_Sunken;
+ }
+ if (isEnabled())
+ opt.state |= QStyle::State_Enabled;
+
+
+ opt.rect.setRect(fr.x() + style()->pixelMetric(QStyle::PM_HeaderMargin) + dx, fr.y() + 2 + dy,
+ fr.width() - 6, fr.height() - 4);
+
+ style()->drawControl(QStyle::CE_HeaderLabel, &opt, p, this);
+
+ int arrowWidth = (orient == Qt::Horizontal ? height() : width()) / 2;
+ int arrowHeight = fr.height() - 6;
+ QSize ssh = sectionSizeHint(section, p->fontMetrics());
+ int tw = (orient == Qt::Horizontal ? ssh.width() : ssh.height());
+ int ew = 0;
+
+ if (style()->styleHint(QStyle::SH_Header_ArrowAlignment, 0, this) & Qt::AlignRight)
+ ew = fr.width() - tw - 8;
+ if (d->sortSection == section && tw <= fr.width()) {
+ if (reverse()) {
+ tw = fr.width() - tw;
+ ew = fr.width() - ew - tw;
+ }
+ opt.state = QStyle::State_None;
+ if (isEnabled())
+ opt.state |= QStyle::State_Enabled;
+ if (d->sortDirection)
+ opt.state |= QStyle::State_DownArrow;
+ else
+ opt.state |= QStyle::State_UpArrow;
+ QRect ar(fr.x() + tw - arrowWidth - 6 + ew, 4, arrowWidth, arrowHeight);
+ if (label(section).isRightToLeft())
+ ar.moveBy( 2*(fr.right() - ar.right()) + ar.width() - fr.width(), 0 );
+ opt.rect = ar;
+ style()->drawPrimitive(QStyle::PE_IndicatorHeaderArrow, &opt, p, this);
+ }
+}
+
+
+/*! \reimp */
+void Q3Header::paintEvent(QPaintEvent *e)
+{
+ QPainter p(this);
+ p.setPen(palette().buttonText().color());
+ int pos = orient == Qt::Horizontal ? e->rect().left() : e->rect().top();
+ int id = mapToIndex(sectionAt(pos + offset()));
+ if (id < 0) {
+ if (pos > 0)
+ id = d->count;
+ else if (reverse())
+ id = d->count - 1;
+ else
+ id = 0;
+ }
+ if (reverse()) {
+ for (int i = id; i >= 0; i--) {
+ QRect r = sRect(i);
+ paintSection(&p, i, r);
+ if (r.right() >= e->rect().right())
+ return;
+ }
+ } else {
+ if (count() > 0) {
+ for (int i = id; i <= count(); i++) {
+ QRect r = sRect(i);
+ /*
+ If the last section is clickable (and thus is
+ painted raised), draw the virtual section count()
+ as well. Otherwise it looks ugly.
+ */
+ if (i < count() || d->clicks[mapToSection(count() - 1)])
+ paintSection(&p, i, r);
+ if (hasFocus() && d->focusIdx == i) {
+ QStyleOptionFocusRect opt;
+ opt.rect.setRect(r.x()+2, r.y()+2, r.width()-4, r.height()-4);
+ opt.palette = palette();
+ opt.state = QStyle::State_None;
+ style()->drawPrimitive(QStyle::PE_FrameFocusRect, &opt, &p, this);
+ }
+ if ((orient == Qt::Horizontal && r. right() >= e->rect().right())
+ || (orient == Qt::Vertical && r. bottom() >= e->rect().bottom()))
+ return;
+ }
+ }
+ }
+}
+
+/*!
+ \overload
+
+ Sets the sort indicator to \a ascending. Use the other overload instead.
+*/
+
+void Q3Header::setSortIndicator(int section, bool ascending)
+{
+ d->sortSection = section;
+ if (section != -1)
+ oldHandleIdx = section;
+ d->sortDirection = ascending;
+ update();
+ updateGeometry();
+}
+
+/*!
+ \fn void Q3Header::setSortIndicator(int section, Qt::SortOrder order)
+
+ Sets a sort indicator onto the specified \a section. The indicator's
+ \a order is either Ascending or Descending.
+
+ Only one section can show a sort indicator at any one time. If you
+ don't want any section to show a sort indicator pass a \a section
+ number of -1.
+
+ \sa sortIndicatorSection(), sortIndicatorOrder()
+*/
+
+/*!
+ Returns the section showing the sort indicator or -1 if there is no sort indicator.
+
+ \sa setSortIndicator(), sortIndicatorOrder()
+*/
+
+int Q3Header::sortIndicatorSection() const
+{
+ return d->sortSection;
+}
+
+/*!
+ Returns the implied sort order of the Q3Headers sort indicator.
+
+ \sa setSortIndicator(), sortIndicatorSection()
+*/
+
+Qt::SortOrder Q3Header::sortIndicatorOrder() const
+{
+ return d->sortDirection ? Qt::AscendingOrder : Qt::DescendingOrder;
+}
+
+/*!
+ Resizes section \a section to \a s pixels wide (or high).
+*/
+
+void Q3Header::resizeSection(int section, int s)
+{
+ setCellSize(section, s);
+ update();
+}
+
+/*!
+ Returns the width (or height) of the \a section in pixels.
+*/
+
+int Q3Header::sectionSize(int section) const
+{
+ if (section < 0 || section >= count())
+ return 0;
+ return d->sizes[section];
+}
+
+/*!
+ Returns the position (in pixels) at which the \a section starts.
+
+ \sa offset()
+*/
+
+int Q3Header::sectionPos(int section) const
+{
+ if (d->positionsDirty)
+ ((Q3Header *)this)->calculatePositions();
+ if (section < 0 || section >= count() )
+ return 0;
+ return d->positions[d->s2i[section]];
+}
+
+/*!
+ Returns the index of the section which contains the position \a
+ pos given in pixels from the left (or top).
+
+ \sa offset()
+*/
+
+int Q3Header::sectionAt(int pos) const
+{
+ if (reverse())
+ pos = d->lastPos - pos;
+ return d->sectionAt(pos);
+}
+
+/*!
+ Returns the number of the section that is displayed at index
+ position \a index.
+*/
+
+int Q3Header::mapToSection(int index) const
+{
+ return (index >= 0 && index < count()) ? d->i2s[index] : -1;
+}
+
+/*!
+ Returns the index position at which section \a section is
+ displayed.
+*/
+
+int Q3Header::mapToIndex(int section) const
+{
+ return (section >= 0 && section < count()) ? d->s2i[section] : -1;
+}
+
+/*!
+ Moves section \a section to index position \a toIndex.
+*/
+
+void Q3Header::moveSection(int section, int toIndex)
+{
+ int fromIndex = mapToIndex(section);
+ if (fromIndex == toIndex ||
+ fromIndex < 0 || fromIndex > count() ||
+ toIndex < 0 || toIndex > count())
+ return;
+ int i;
+ int idx = d->i2s[fromIndex];
+ if (fromIndex < toIndex) {
+ for (i = fromIndex; i < toIndex - 1; i++) {
+ int t;
+ d->i2s[i] = t = d->i2s[i+1];
+ d->s2i[t] = i;
+ }
+ d->i2s[toIndex-1] = idx;
+ d->s2i[idx] = toIndex-1;
+ } else {
+ for (i = fromIndex; i > toIndex; i--) {
+ int t;
+ d->i2s[i] = t = d->i2s[i-1];
+ d->s2i[t] = i;
+ }
+ d->i2s[toIndex] = idx;
+ d->s2i[idx] = toIndex;
+ }
+ calculatePositions();
+}
+
+/*!
+ Returns true if section \a section is clickable; otherwise returns
+ false.
+
+ If \a section is out of range (negative or larger than count() -
+ 1): returns true if all sections are clickable; otherwise returns
+ false.
+
+ \sa setClickEnabled()
+*/
+
+bool Q3Header::isClickEnabled(int section) const
+{
+ if (section >= 0 && section < count()) {
+ return (bool)d->clicks[section];
+ }
+
+ for (int i = 0; i < count(); ++i) {
+ if (!d->clicks[i])
+ return false;
+ }
+ return true;
+}
+
+/*!
+ Returns true if section \a section is resizeable; otherwise
+ returns false.
+
+ If \a section is -1 then this function applies to all sections,
+ i.e. returns true if all sections are resizeable; otherwise
+ returns false.
+
+ \sa setResizeEnabled()
+*/
+
+bool Q3Header::isResizeEnabled(int section) const
+{
+ if (section >= 0 && section < count()) {
+ return (bool)d->resize[section];
+ }
+
+ for (int i = 0; i < count();++i) {
+ if (!d->resize[i])
+ return false;
+ }
+ return true;
+}
+
+bool Q3Header::isMovingEnabled() const
+{
+ return d->move;
+}
+
+/*! \internal */
+
+void Q3Header::setUpdatesEnabled(bool enable)
+{
+ if (enable)
+ calculatePositions();
+ QWidget::setUpdatesEnabled(enable);
+}
+
+
+bool Q3Header::reverse () const
+{
+#if 0
+ return (orient == Qt::Horizontal && QApplication::reverseLayout());
+#else
+ return false;
+#endif
+}
+
+/*! \reimp */
+void Q3Header::resizeEvent(QResizeEvent *e)
+{
+ if (e)
+ QWidget::resizeEvent(e);
+
+ if(d->lastPos < width()) {
+ offs = 0;
+ }
+
+ if (e) {
+ adjustHeaderSize(orientation() == Qt::Horizontal ?
+ width() - e->oldSize().width() : height() - e->oldSize().height());
+ if ((orientation() == Qt::Horizontal && height() != e->oldSize().height())
+ || (orientation() == Qt::Vertical && width() != e->oldSize().width()))
+ update();
+ } else
+ adjustHeaderSize();
+}
+
+/*!
+ \fn void Q3Header::adjustHeaderSize()
+
+ Adjusts the size of the sections to fit the size of the header as
+ completely as possible. Only sections for which isStretchEnabled()
+ is true will be resized.
+*/
+
+void Q3Header::adjustHeaderSize(int diff)
+{
+ if (!count())
+ return;
+
+ // we skip the adjustHeaderSize when trying to resize the last column which is set to stretchable
+ if (d->fullSize == (count() -1) &&
+ (d->lastPos - d->sizes[count() -1]) > (orient == Qt::Horizontal ? width() : height()))
+ return;
+
+ if (d->fullSize >= 0) {
+ int sec = mapToSection(d->fullSize);
+ int lsec = mapToSection(count() - 1);
+ int ns = sectionSize(sec) +
+ (orientation() == Qt::Horizontal ?
+ width() : height()) - (sectionPos(lsec) + sectionSize(lsec));
+ int os = sectionSize(sec);
+ if (ns < 20)
+ ns = 20;
+ setCellSize(sec, ns);
+ repaint();
+ emit sizeChange(sec, os, ns);
+ } else if (d->fullSize == -1) {
+ int df = diff / count();
+ int part = orientation() == Qt::Horizontal ? width() / count() : height() / count();
+ for (int i = 0; i < count() - 1; ++i) {
+ int sec = mapToIndex(i);
+ int os = sectionSize(sec);
+ int ns = diff != -1 ? os + df : part;
+ if (ns < 20)
+ ns = 20;
+ setCellSize(sec, ns);
+ emit sizeChange(sec, os, ns);
+ }
+ int sec = mapToIndex(count() - 1);
+ int ns = (orientation() == Qt::Horizontal ? width() : height()) - sectionPos(sec);
+ int os = sectionSize(sec);
+ if (ns < 20)
+ ns = 20;
+ setCellSize(sec, ns);
+ repaint();
+ emit sizeChange(sec, os, ns);
+ }
+}
+
+/*!
+ Returns the total width of all the header columns.
+*/
+int Q3Header::headerWidth() const
+{
+ if (d->pos_dirty) {
+ ((Q3Header*)this)->calculatePositions();
+ d->pos_dirty = false;
+ }
+ return d->lastPos;
+}
+
+void Q3Header::calculatePositions(bool onlyVisible, int start)
+{
+ d->positionsDirty = false;
+ d->lastPos = count() > 0 ? d->positions[start] : 0;
+ for (int i = start; i < count(); i++) {
+ d->positions[i] = d->lastPos;
+ d->lastPos += d->sizes[d->i2s[i]];
+ if (onlyVisible && d->lastPos > offset() +
+ (orientation() == Qt::Horizontal ? width() : height()))
+ break;
+ }
+ d->pos_dirty = onlyVisible;
+}
+
+
+/*!
+ \property Q3Header::stretching
+ \brief whether the header sections always take up the full width
+ (or height) of the header
+*/
+
+
+/*!
+ If \a b is true, section \a section will be resized when the
+ header is resized, so that the sections take up the full width (or
+ height for vertical headers) of the header; otherwise section \a
+ section will be set to be unstretchable and will not resize when
+ the header is resized.
+
+ If \a section is -1, and if \a b is true, then all sections will
+ be resized equally when the header is resized so that they take up
+ the full width (or height for vertical headers) of the header;
+ otherwise all the sections will be set to be unstretchable and
+ will not resize when the header is resized.
+
+ \sa adjustHeaderSize()
+*/
+
+void Q3Header::setStretchEnabled(bool b, int section)
+{
+ if (b)
+ d->fullSize = section;
+ else
+ d->fullSize = -2;
+ adjustHeaderSize();
+}
+
+bool Q3Header::isStretchEnabled() const
+{
+ return d->fullSize == -1;
+}
+
+/*!
+ \overload
+
+ Returns true if section \a section will resize to take up the full
+ width (or height) of the header; otherwise returns false. If at
+ least one section has stretch enabled the sections will always
+ take up the full width of the header.
+
+ \sa setStretchEnabled()
+*/
+
+bool Q3Header::isStretchEnabled(int section) const
+{
+ return d->fullSize == section;
+}
+
+/*!
+ \reimp
+*/
+void Q3Header::changeEvent(QEvent *ev)
+{
+ if(ev->type() == QEvent::FontChange) {
+ QFontMetrics fm = fontMetrics();
+ d->height = (orient == Qt::Horizontal) ? fm.lineSpacing() + 6 : fm.width(QLatin1Char(' '));
+ }
+ QWidget::changeEvent(ev);
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_HEADER