--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/itemviews/qtableview.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,3113 @@
+/****************************************************************************
+**
+** 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 QtGui 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 "qtableview.h"
+
+#ifndef QT_NO_TABLEVIEW
+#include <qheaderview.h>
+#include <qitemdelegate.h>
+#include <qapplication.h>
+#include <qpainter.h>
+#include <qstyle.h>
+#include <qsize.h>
+#include <qevent.h>
+#include <qbitarray.h>
+#include <qscrollbar.h>
+#include <qabstractbutton.h>
+#include <private/qtableview_p.h>
+#ifndef QT_NO_ACCESSIBILITY
+#include <qaccessible.h>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+/** \internal
+ Add a span to the collection. the collection takes the ownership.
+ */
+void QSpanCollection::addSpan(QSpanCollection::Span *span)
+{
+ spans.append(span);
+ Index::iterator it_y = index.lowerBound(-span->top());
+ if (it_y == index.end() || it_y.key() != -span->top()) {
+ //there is no spans that starts with the row in the index, so create a sublist for it.
+ SubIndex sub_index;
+ if (it_y != index.end()) {
+ //the previouslist is the list of spans that sarts _before_ the row of the span.
+ // and which may intersect this row.
+ const SubIndex previousList = it_y.value();
+ foreach(Span *s, previousList) {
+ //If a subspans intersect the row, we need to split it into subspans
+ if(s->bottom() >= span->top())
+ sub_index.insert(-s->left(), s);
+ }
+ }
+ it_y = index.insert(-span->top(), sub_index);
+ //we will insert span to *it_y in the later loop
+ }
+
+ //insert the span as supspan in all the lists that intesects the span
+ while(-it_y.key() <= span->bottom()) {
+ (*it_y).insert(-span->left(), span);
+ if(it_y == index.begin())
+ break;
+ --it_y;
+ }
+}
+
+
+/** \internal
+* Has to be called after the height and width of a span is changed.
+*
+* old_height is the height before the change
+*
+* if the size of the span is now 0x0 the span will be deleted.
+*/
+void QSpanCollection::updateSpan(QSpanCollection::Span *span, int old_height)
+{
+ if (old_height < span->height()) {
+ //add the span as subspan in all the lists that intersect the new covered columns
+ Index::iterator it_y = index.lowerBound(-(span->top() + old_height - 1));
+ Q_ASSERT(it_y != index.end()); //it_y must exist since the span is in the list
+ while (-it_y.key() <= span->bottom()) {
+ (*it_y).insert(-span->left(), span);
+ if(it_y == index.begin())
+ break;
+ --it_y;
+ }
+ } else if (old_height > span->height()) {
+ //remove the span from all the subspans lists that intersect the columns not covered anymore
+ Index::iterator it_y = index.lowerBound(-span->bottom());
+ Q_ASSERT(it_y != index.end()); //it_y must exist since the span is in the list
+ while (-it_y.key() <= span->top() + old_height -1) {
+ if(-it_y.key() != span->bottom()) {
+ (*it_y).remove(-span->left());
+ if (it_y->isEmpty()) {
+ it_y = index.erase(it_y) - 1;
+ }
+ }
+ if(it_y == index.begin())
+ break;
+ --it_y;
+ }
+ }
+
+ if (span->width() == 0 && span->height() == 0) {
+ spans.removeOne(span);
+ delete span;
+ }
+}
+
+/** \internal
+ * \return a spans that spans over cell x,y (column,row) or 0 if there is none.
+ */
+QSpanCollection::Span *QSpanCollection::spanAt(int x, int y) const
+{
+ Index::const_iterator it_y = index.lowerBound(-y);
+ if (it_y == index.end())
+ return 0;
+ SubIndex::const_iterator it_x = (*it_y).lowerBound(-x);
+ if (it_x == (*it_y).end())
+ return 0;
+ Span *span = *it_x;
+ if (span->right() >= x && span->bottom() >= y)
+ return span;
+ return 0;
+}
+
+
+/** \internal
+* remove and deletes all spans inside the collection
+*/
+void QSpanCollection::clear()
+{
+ qDeleteAll(spans);
+ index.clear();
+ spans.clear();
+}
+
+/** \internal
+ * return a list to all the spans that spans over cells in the given rectangle
+ */
+QList<QSpanCollection::Span *> QSpanCollection::spansInRect(int x, int y, int w, int h) const
+{
+ QSet<Span *> list;
+ Index::const_iterator it_y = index.lowerBound(-y);
+ if(it_y == index.end())
+ --it_y;
+ while(-it_y.key() <= y + h) {
+ SubIndex::const_iterator it_x = (*it_y).lowerBound(-x);
+ if (it_x == (*it_y).end())
+ --it_x;
+ while(-it_x.key() <= x + w) {
+ Span *s = *it_x;
+ if (s->bottom() >= y && s->right() >= x)
+ list << s;
+ if (it_x == (*it_y).begin())
+ break;
+ --it_x;
+ }
+ if(it_y == index.begin())
+ break;
+ --it_y;
+ }
+ return list.toList();
+}
+
+#undef DEBUG_SPAN_UPDATE
+
+#ifdef DEBUG_SPAN_UPDATE
+QDebug operator<<(QDebug str, const QSpanCollection::Span &span)
+{
+ str << "(" << span.top() << "," << span.left() << "," << span.bottom() << "," << span.right() << ")";
+ return str;
+}
+#endif
+
+/** \internal
+* Updates the span collection after row insertion.
+*/
+void QSpanCollection::updateInsertedRows(int start, int end)
+{
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << Q_FUNC_INFO;
+ qDebug() << start << end;
+ qDebug() << index;
+#endif
+ if (spans.isEmpty())
+ return;
+
+ int delta = end - start + 1;
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug("Before");
+#endif
+ for (SpanList::iterator it = spans.begin(); it != spans.end(); ++it) {
+ Span *span = *it;
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << span << *span;
+#endif
+ if (span->m_bottom < start)
+ continue;
+ if (span->m_top >= start)
+ span->m_top += delta;
+ span->m_bottom += delta;
+ }
+
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug("After");
+ foreach (QSpanCollection::Span *span, spans)
+ qDebug() << span << *span;
+#endif
+
+ for (Index::iterator it_y = index.begin(); it_y != index.end(); ) {
+ int y = -it_y.key();
+ if (y < start) {
+ ++it_y;
+ continue;
+ }
+
+ index.insert(-y - delta, it_y.value());
+ it_y = index.erase(it_y);
+ }
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << index;
+#endif
+}
+
+/** \internal
+* Updates the span collection after column insertion.
+*/
+void QSpanCollection::updateInsertedColumns(int start, int end)
+{
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << Q_FUNC_INFO;
+ qDebug() << start << end;
+ qDebug() << index;
+#endif
+ if (spans.isEmpty())
+ return;
+
+ int delta = end - start + 1;
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug("Before");
+#endif
+ for (SpanList::iterator it = spans.begin(); it != spans.end(); ++it) {
+ Span *span = *it;
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << span << *span;
+#endif
+ if (span->m_right < start)
+ continue;
+ if (span->m_left >= start)
+ span->m_left += delta;
+ span->m_right += delta;
+ }
+
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug("After");
+ foreach (QSpanCollection::Span *span, spans)
+ qDebug() << span << *span;
+#endif
+
+ for (Index::iterator it_y = index.begin(); it_y != index.end(); ++it_y) {
+ SubIndex &subindex = it_y.value();
+ for (SubIndex::iterator it = subindex.begin(); it != subindex.end(); ) {
+ int x = -it.key();
+ if (x < start) {
+ ++it;
+ continue;
+ }
+ subindex.insert(-x - delta, it.value());
+ it = subindex.erase(it);
+ }
+ }
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << index;
+#endif
+}
+
+/** \internal
+* Cleans a subindex from to be deleted spans. The update argument is used
+* to move the spans inside the subindex, in case their anchor changed.
+* \return true if no span in this subindex starts at y, and should thus be deleted.
+*/
+bool QSpanCollection::cleanSpanSubIndex(QSpanCollection::SubIndex &subindex, int y, bool update)
+{
+ if (subindex.isEmpty())
+ return true;
+
+ bool should_be_deleted = true;
+ SubIndex::iterator it = subindex.end();
+ do {
+ --it;
+ int x = -it.key();
+ Span *span = it.value();
+ if (span->will_be_deleted) {
+ it = subindex.erase(it);
+ continue;
+ }
+ if (update && span->m_left != x) {
+ subindex.insert(-span->m_left, span);
+ it = subindex.erase(it);
+ }
+ if (should_be_deleted && span->m_top == y)
+ should_be_deleted = false;
+ } while (it != subindex.begin());
+
+ return should_be_deleted;
+}
+
+/** \internal
+* Updates the span collection after row removal.
+*/
+void QSpanCollection::updateRemovedRows(int start, int end)
+{
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << Q_FUNC_INFO;
+ qDebug() << start << end;
+ qDebug() << index;
+#endif
+ if (spans.isEmpty())
+ return;
+
+ SpanList spansToBeDeleted;
+ int delta = end - start + 1;
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug("Before");
+#endif
+ for (SpanList::iterator it = spans.begin(); it != spans.end(); ) {
+ Span *span = *it;
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << span << *span;
+#endif
+ if (span->m_bottom < start) {
+ ++it;
+ continue;
+ }
+ if (span->m_top < start) {
+ if (span->m_bottom <= end)
+ span->m_bottom = start - 1;
+ else
+ span->m_bottom -= delta;
+ } else {
+ if (span->m_bottom > end) {
+ if (span->m_top <= end)
+ span->m_top = start;
+ else
+ span->m_top -= delta;
+ span->m_bottom -= delta;
+ } else {
+ span->will_be_deleted = true;
+ }
+ }
+ if (span->m_top == span->m_bottom && span->m_left == span->m_right)
+ span->will_be_deleted = true;
+ if (span->will_be_deleted) {
+ spansToBeDeleted.append(span);
+ it = spans.erase(it);
+ } else {
+ ++it;
+ }
+ }
+
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug("After");
+ foreach (QSpanCollection::Span *span, spans)
+ qDebug() << span << *span;
+#endif
+ if (spans.isEmpty()) {
+ qDeleteAll(spansToBeDeleted);
+ index.clear();
+ return;
+ }
+
+ Index::iterator it_y = index.end();
+ do {
+ --it_y;
+ int y = -it_y.key();
+ SubIndex &subindex = it_y.value();
+ if (y < start) {
+ if (cleanSpanSubIndex(subindex, y))
+ it_y = index.erase(it_y);
+ } else if (y >= start && y <= end) {
+ bool span_at_start = false;
+ SubIndex spansToBeMoved;
+ for (SubIndex::iterator it = subindex.begin(); it != subindex.end(); ++it) {
+ Span *span = it.value();
+ if (span->will_be_deleted)
+ continue;
+ if (!span_at_start && span->m_top == start)
+ span_at_start = true;
+ spansToBeMoved.insert(it.key(), span);
+ }
+
+ if (y == start && span_at_start)
+ subindex.clear();
+ else
+ it_y = index.erase(it_y);
+
+ if (span_at_start) {
+ Index::iterator it_start;
+ if (y == start)
+ it_start = it_y;
+ else {
+ it_start = index.find(-start);
+ if (it_start == index.end())
+ it_start = index.insert(-start, SubIndex());
+ }
+ SubIndex &start_subindex = it_start.value();
+ for (SubIndex::iterator it = spansToBeMoved.begin(); it != spansToBeMoved.end(); ++it)
+ start_subindex.insert(it.key(), it.value());
+ }
+ } else {
+ if (y == end + 1) {
+ Index::iterator it_top = index.find(-y + delta);
+ if (it_top == index.end())
+ it_top = index.insert(-y + delta, SubIndex());
+ for (SubIndex::iterator it = subindex.begin(); it != subindex.end(); ) {
+ Span *span = it.value();
+ if (!span->will_be_deleted)
+ it_top.value().insert(it.key(), span);
+ ++it;
+ }
+ } else {
+ index.insert(-y + delta, subindex);
+ }
+ it_y = index.erase(it_y);
+ }
+ } while (it_y != index.begin());
+
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << index;
+ qDebug("Deleted");
+ foreach (QSpanCollection::Span *span, spansToBeDeleted)
+ qDebug() << span << *span;
+#endif
+ qDeleteAll(spansToBeDeleted);
+}
+
+/** \internal
+* Updates the span collection after column removal.
+*/
+void QSpanCollection::updateRemovedColumns(int start, int end)
+{
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << Q_FUNC_INFO;
+ qDebug() << start << end;
+ qDebug() << index;
+#endif
+ if (spans.isEmpty())
+ return;
+
+ SpanList toBeDeleted;
+ int delta = end - start + 1;
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug("Before");
+#endif
+ for (SpanList::iterator it = spans.begin(); it != spans.end(); ) {
+ Span *span = *it;
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << span << *span;
+#endif
+ if (span->m_right < start) {
+ ++it;
+ continue;
+ }
+ if (span->m_left < start) {
+ if (span->m_right <= end)
+ span->m_right = start - 1;
+ else
+ span->m_right -= delta;
+ } else {
+ if (span->m_right > end) {
+ if (span->m_left <= end)
+ span->m_left = start;
+ else
+ span->m_left -= delta;
+ span->m_right -= delta;
+ } else {
+ span->will_be_deleted = true;
+ }
+ }
+ if (span->m_top == span->m_bottom && span->m_left == span->m_right)
+ span->will_be_deleted = true;
+ if (span->will_be_deleted) {
+ toBeDeleted.append(span);
+ it = spans.erase(it);
+ } else {
+ ++it;
+ }
+ }
+
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug("After");
+ foreach (QSpanCollection::Span *span, spans)
+ qDebug() << span << *span;
+#endif
+ if (spans.isEmpty()) {
+ qDeleteAll(toBeDeleted);
+ index.clear();
+ return;
+ }
+
+ for (Index::iterator it_y = index.begin(); it_y != index.end(); ) {
+ int y = -it_y.key();
+ if (cleanSpanSubIndex(it_y.value(), y, true))
+ it_y = index.erase(it_y);
+ else
+ ++it_y;
+ }
+
+#ifdef DEBUG_SPAN_UPDATE
+ qDebug() << index;
+ qDebug("Deleted");
+ foreach (QSpanCollection::Span *span, toBeDeleted)
+ qDebug() << span << *span;
+#endif
+ qDeleteAll(toBeDeleted);
+}
+
+class QTableCornerButton : public QAbstractButton
+{
+ Q_OBJECT
+public:
+ QTableCornerButton(QWidget *parent) : QAbstractButton(parent) {}
+ void paintEvent(QPaintEvent*) {
+ QStyleOptionHeader opt;
+ opt.init(this);
+ QStyle::State state = QStyle::State_None;
+ if (isEnabled())
+ state |= QStyle::State_Enabled;
+ if (isActiveWindow())
+ state |= QStyle::State_Active;
+ if (isDown())
+ state |= QStyle::State_Sunken;
+ opt.state = state;
+ opt.rect = rect();
+ opt.position = QStyleOptionHeader::OnlyOneSection;
+ QPainter painter(this);
+ style()->drawControl(QStyle::CE_Header, &opt, &painter, this);
+ }
+};
+
+void QTableViewPrivate::init()
+{
+ Q_Q(QTableView);
+
+ q->setEditTriggers(editTriggers|QAbstractItemView::AnyKeyPressed);
+
+ QHeaderView *vertical = new QHeaderView(Qt::Vertical, q);
+ vertical->setClickable(true);
+ vertical->setHighlightSections(true);
+ q->setVerticalHeader(vertical);
+
+ QHeaderView *horizontal = new QHeaderView(Qt::Horizontal, q);
+ horizontal->setClickable(true);
+ horizontal->setHighlightSections(true);
+ q->setHorizontalHeader(horizontal);
+
+ tabKeyNavigation = true;
+
+ cornerWidget = new QTableCornerButton(q);
+ cornerWidget->setFocusPolicy(Qt::NoFocus);
+ QObject::connect(cornerWidget, SIGNAL(clicked()), q, SLOT(selectAll()));
+}
+
+/*!
+ \internal
+ Trims away indices that are hidden in the treeview due to hidden horizontal or vertical sections.
+*/
+void QTableViewPrivate::trimHiddenSelections(QItemSelectionRange *range) const
+{
+ Q_ASSERT(range && range->isValid());
+
+ int top = range->top();
+ int left = range->left();
+ int bottom = range->bottom();
+ int right = range->right();
+
+ while (bottom >= top && verticalHeader->isSectionHidden(bottom))
+ --bottom;
+ while (right >= left && horizontalHeader->isSectionHidden(right))
+ --right;
+
+ if (top > bottom || left > right) { // everything is hidden
+ *range = QItemSelectionRange();
+ return;
+ }
+
+ while (verticalHeader->isSectionHidden(top) && top <= bottom)
+ ++top;
+ while (horizontalHeader->isSectionHidden(left) && left <= right)
+ ++left;
+
+ if (top > bottom || left > right) { // everything is hidden
+ *range = QItemSelectionRange();
+ return;
+ }
+
+ QModelIndex bottomRight = model->index(bottom, right, range->parent());
+ QModelIndex topLeft = model->index(top, left, range->parent());
+ *range = QItemSelectionRange(topLeft, bottomRight);
+}
+
+/*!
+ \internal
+ Sets the span for the cell at (\a row, \a column).
+*/
+void QTableViewPrivate::setSpan(int row, int column, int rowSpan, int columnSpan)
+{
+ if (row < 0 || column < 0 || rowSpan <= 0 || columnSpan <= 0) {
+ qWarning() << "QTableView::setSpan: invalid span given: (" << row << ',' << column << ',' << rowSpan << ',' << columnSpan << ')';
+ return;
+ }
+ QSpanCollection::Span *sp = spans.spanAt(column, row);
+ if (sp) {
+ if (sp->top() != row || sp->left() != column) {
+ qWarning() << "QTableView::setSpan: span cannot overlap";
+ return;
+ }
+ if (rowSpan == 1 && columnSpan == 1) {
+ rowSpan = columnSpan = 0;
+ }
+ const int old_height = sp->height();
+ sp->m_bottom = row + rowSpan - 1;
+ sp->m_right = column + columnSpan - 1;
+ spans.updateSpan(sp, old_height);
+ return;
+ } else if (rowSpan == 1 && columnSpan == 1) {
+ qWarning() << "QTableView::setSpan: single cell span won't be added";
+ return;
+ }
+ sp = new QSpanCollection::Span(row, column, rowSpan, columnSpan);
+ spans.addSpan(sp);
+}
+
+/*!
+ \internal
+ Gets the span information for the cell at (\a row, \a column).
+*/
+QSpanCollection::Span QTableViewPrivate::span(int row, int column) const
+{
+ QSpanCollection::Span *sp = spans.spanAt(column, row);
+ if (sp)
+ return *sp;
+
+ return QSpanCollection::Span(row, column, 1, 1);
+}
+
+/*!
+ \internal
+ Returns the logical index of the last section that's part of the span.
+*/
+int QTableViewPrivate::sectionSpanEndLogical(const QHeaderView *header, int logical, int span) const
+{
+ int visual = header->visualIndex(logical);
+ for (int i = 1; i < span; ) {
+ if (++visual >= header->count())
+ break;
+ logical = header->logicalIndex(visual);
+ ++i;
+ }
+ return logical;
+}
+
+/*!
+ \internal
+ Returns the size of the span starting at logical index \a logical
+ and spanning \a span sections.
+*/
+int QTableViewPrivate::sectionSpanSize(const QHeaderView *header, int logical, int span) const
+{
+ int endLogical = sectionSpanEndLogical(header, logical, span);
+ return header->sectionPosition(endLogical)
+ - header->sectionPosition(logical)
+ + header->sectionSize(endLogical);
+}
+
+/*!
+ \internal
+ Returns true if the section at logical index \a logical is part of the span
+ starting at logical index \a spanLogical and spanning \a span sections;
+ otherwise, returns false.
+*/
+bool QTableViewPrivate::spanContainsSection(const QHeaderView *header, int logical, int spanLogical, int span) const
+{
+ if (logical == spanLogical)
+ return true; // it's the start of the span
+ int visual = header->visualIndex(spanLogical);
+ for (int i = 1; i < span; ) {
+ if (++visual >= header->count())
+ break;
+ spanLogical = header->logicalIndex(visual);
+ if (logical == spanLogical)
+ return true;
+ ++i;
+ }
+ return false;
+}
+
+/*!
+ \internal
+ Returns the visual rect for the given \a span.
+*/
+QRect QTableViewPrivate::visualSpanRect(const QSpanCollection::Span &span) const
+{
+ Q_Q(const QTableView);
+ // vertical
+ int row = span.top();
+ int rowp = verticalHeader->sectionViewportPosition(row);
+ int rowh = rowSpanHeight(row, span.height());
+ // horizontal
+ int column = span.left();
+ int colw = columnSpanWidth(column, span.width());
+ if (q->isRightToLeft())
+ column = span.right();
+ int colp = horizontalHeader->sectionViewportPosition(column);
+
+ const int i = showGrid ? 1 : 0;
+ if (q->isRightToLeft())
+ return QRect(colp + i, rowp, colw - i, rowh - i);
+ return QRect(colp, rowp, colw - i, rowh - i);
+}
+
+/*!
+ \internal
+ Draws the spanning cells within rect \a area, and clips them off as
+ preparation for the main drawing loop.
+ \a drawn is a QBitArray of visualRowCountxvisualCoulumnCount which say if particular cell has been drawn
+*/
+void QTableViewPrivate::drawAndClipSpans(const QRegion &area, QPainter *painter,
+ const QStyleOptionViewItemV4 &option, QBitArray *drawn,
+ int firstVisualRow, int lastVisualRow, int firstVisualColumn, int lastVisualColumn)
+{
+ bool alternateBase = false;
+ QRegion region = viewport->rect();
+
+ QList<QSpanCollection::Span *> visibleSpans;
+ bool sectionMoved = verticalHeader->sectionsMoved() || horizontalHeader->sectionsMoved();
+
+ if (!sectionMoved) {
+ visibleSpans = spans.spansInRect(logicalColumn(firstVisualColumn), logicalRow(firstVisualRow),
+ lastVisualColumn - firstVisualColumn + 1, lastVisualRow - firstVisualRow + 1);
+ } else {
+ QSet<QSpanCollection::Span *> set;
+ for(int x = firstVisualColumn; x <= lastVisualColumn; x++)
+ for(int y = firstVisualRow; y <= lastVisualRow; y++)
+ set.insert(spans.spanAt(x,y));
+ set.remove(0);
+ visibleSpans = set.toList();
+ }
+
+ foreach (QSpanCollection::Span *span, visibleSpans) {
+ int row = span->top();
+ int col = span->left();
+ QModelIndex index = model->index(row, col, root);
+ if (!index.isValid())
+ continue;
+ QRect rect = visualSpanRect(*span);
+ rect.translate(scrollDelayOffset);
+ if (!area.intersects(rect))
+ continue;
+ QStyleOptionViewItemV4 opt = option;
+ opt.rect = rect;
+ alternateBase = alternatingColors && (span->top() & 1);
+ if (alternateBase)
+ opt.features |= QStyleOptionViewItemV2::Alternate;
+ else
+ opt.features &= ~QStyleOptionViewItemV2::Alternate;
+ drawCell(painter, opt, index);
+ region -= rect;
+ for (int r = span->top(); r <= span->bottom(); ++r) {
+ const int vr = visualRow(r);
+ if (vr < firstVisualRow || vr > lastVisualRow)
+ continue;
+ for (int c = span->left(); c <= span->right(); ++c) {
+ const int vc = visualColumn(c);
+ if (vc < firstVisualColumn || vc > lastVisualColumn)
+ continue;
+ drawn->setBit((vr - firstVisualRow) * (lastVisualColumn - firstVisualColumn + 1)
+ + vc - firstVisualColumn);
+ }
+ }
+
+ }
+ painter->setClipRegion(region);
+}
+
+/*!
+ \internal
+ Updates spans after row insertion.
+*/
+void QTableViewPrivate::_q_updateSpanInsertedRows(const QModelIndex &parent, int start, int end)
+{
+ Q_UNUSED(parent)
+ spans.updateInsertedRows(start, end);
+}
+
+/*!
+ \internal
+ Updates spans after column insertion.
+*/
+void QTableViewPrivate::_q_updateSpanInsertedColumns(const QModelIndex &parent, int start, int end)
+{
+ Q_UNUSED(parent)
+ spans.updateInsertedColumns(start, end);
+}
+
+/*!
+ \internal
+ Updates spans after row removal.
+*/
+void QTableViewPrivate::_q_updateSpanRemovedRows(const QModelIndex &parent, int start, int end)
+{
+ Q_UNUSED(parent)
+ spans.updateRemovedRows(start, end);
+}
+
+/*!
+ \internal
+ Updates spans after column removal.
+*/
+void QTableViewPrivate::_q_updateSpanRemovedColumns(const QModelIndex &parent, int start, int end)
+{
+ Q_UNUSED(parent)
+ spans.updateRemovedColumns(start, end);
+}
+
+/*!
+ \internal
+ Draws a table cell.
+*/
+void QTableViewPrivate::drawCell(QPainter *painter, const QStyleOptionViewItemV4 &option, const QModelIndex &index)
+{
+ Q_Q(QTableView);
+ QStyleOptionViewItemV4 opt = option;
+
+ if (selectionModel && selectionModel->isSelected(index))
+ opt.state |= QStyle::State_Selected;
+ if (index == hover)
+ opt.state |= QStyle::State_MouseOver;
+ if (option.state & QStyle::State_Enabled) {
+ QPalette::ColorGroup cg;
+ if ((model->flags(index) & Qt::ItemIsEnabled) == 0) {
+ opt.state &= ~QStyle::State_Enabled;
+ cg = QPalette::Disabled;
+ } else {
+ cg = QPalette::Normal;
+ }
+ opt.palette.setCurrentColorGroup(cg);
+ }
+
+ if (index == q->currentIndex()) {
+ const bool focus = (q->hasFocus() || viewport->hasFocus()) && q->currentIndex().isValid();
+ if (focus)
+ opt.state |= QStyle::State_HasFocus;
+ }
+
+ q->style()->drawPrimitive(QStyle::PE_PanelItemViewRow, &opt, painter, q);
+
+ if (const QWidget *widget = editorForIndex(index).editor) {
+ painter->save();
+ painter->setClipRect(widget->geometry());
+ q->itemDelegate(index)->paint(painter, opt, index);
+ painter->restore();
+ } else {
+ q->itemDelegate(index)->paint(painter, opt, index);
+ }
+}
+
+/*!
+ \class QTableView
+
+ \brief The QTableView class provides a default model/view
+ implementation of a table view.
+
+ \ingroup model-view
+ \ingroup advanced
+
+
+ A QTableView implements a table view that displays items from a
+ model. This class is used to provide standard tables that were
+ previously provided by the QTable class, but using the more
+ flexible approach provided by Qt's model/view architecture.
+
+ The QTableView class is one of the \l{Model/View Classes}
+ and is part of Qt's \l{Model/View Programming}{model/view framework}.
+
+ QTableView implements the interfaces defined by the
+ QAbstractItemView class to allow it to display data provided by
+ models derived from the QAbstractItemModel class.
+
+ \section1 Navigation
+
+ You can navigate the cells in the table by clicking on a cell with the
+ mouse, or by using the arrow keys. Because QTableView enables
+ \l{QAbstractItemView::tabKeyNavigation}{tabKeyNavigation} by default, you
+ can also hit Tab and Backtab to move from cell to cell.
+
+ \section1 Visual Appearance
+
+ The table has a vertical header that can be obtained using the
+ verticalHeader() function, and a horizontal header that is available
+ through the horizontalHeader() function. The height of each row in the
+ table can be found by using rowHeight(); similarly, the width of
+ columns can be found using columnWidth(). Since both of these are plain
+ widgets, you can hide either of them using their hide() functions.
+
+ Rows and columns can be hidden and shown with hideRow(), hideColumn(),
+ showRow(), and showColumn(). They can be selected with selectRow()
+ and selectColumn(). The table will show a grid depending on the
+ \l showGrid property.
+
+ The items shown in a table view, like those in the other item views, are
+ rendered and edited using standard \l{QItemDelegate}{delegates}. However,
+ for some tasks it is sometimes useful to be able to insert widgets in a
+ table instead. Widgets are set for particular indexes with the
+ \l{QAbstractItemView::}{setIndexWidget()} function, and
+ later retrieved with \l{QAbstractItemView::}{indexWidget()}.
+
+ \table
+ \row \o \inlineimage qtableview-resized.png
+ \o By default, the cells in a table do not expand to fill the available space.
+
+ You can make the cells fill the available space by stretching the last
+ header section. Access the relevant header using horizontalHeader()
+ or verticalHeader() and set the header's \l{QHeaderView::}{stretchLastSection}
+ property.
+
+ To distribute the available space according to the space requirement of
+ each column or row, call the view's resizeColumnsToContents() or
+ resizeRowsToContents() functions.
+ \endtable
+
+ \section1 Coordinate Systems
+
+ For some specialized forms of tables it is useful to be able to
+ convert between row and column indexes and widget coordinates.
+ The rowAt() function provides the y-coordinate within the view of the
+ specified row; the row index can be used to obtain a corresponding
+ y-coordinate with rowViewportPosition(). The columnAt() and
+ columnViewportPosition() functions provide the equivalent conversion
+ operations between x-coordinates and column indexes.
+
+ \section1 Styles
+
+ QTableView is styled appropriately for each platform. The following images show
+ how it looks on three different platforms. Go to the \l{Qt Widget Gallery} to see
+ its appearance in other styles.
+
+ \table 100%
+ \row \o \inlineimage windowsxp-tableview.png Screenshot of a Windows XP style table view
+ \o \inlineimage macintosh-tableview.png Screenshot of a Macintosh style table view
+ \o \inlineimage plastique-tableview.png Screenshot of a Plastique style table view
+ \row \o A \l{Windows XP Style Widget Gallery}{Windows XP style} table view.
+ \o A \l{Macintosh Style Widget Gallery}{Macintosh style} table view.
+ \o A \l{Plastique Style Widget Gallery}{Plastique style} table view.
+ \endtable
+
+ \sa QTableWidget, {View Classes}, QAbstractItemModel, QAbstractItemView,
+ {Chart Example}, {Pixelator Example}, {Table Model Example}
+*/
+
+/*!
+ Constructs a table view with a \a parent to represent the data.
+
+ \sa QAbstractItemModel
+*/
+
+QTableView::QTableView(QWidget *parent)
+ : QAbstractItemView(*new QTableViewPrivate, parent)
+{
+ Q_D(QTableView);
+ d->init();
+}
+
+/*!
+ \internal
+*/
+QTableView::QTableView(QTableViewPrivate &dd, QWidget *parent)
+ : QAbstractItemView(dd, parent)
+{
+ Q_D(QTableView);
+ d->init();
+}
+
+/*!
+ Destroys the table view.
+*/
+QTableView::~QTableView()
+{
+}
+
+/*!
+ \reimp
+*/
+void QTableView::setModel(QAbstractItemModel *model)
+{
+ Q_D(QTableView);
+ connect(model, SIGNAL(rowsInserted(QModelIndex,int,int)),
+ this, SLOT(_q_updateSpanInsertedRows(QModelIndex,int,int)));
+ connect(model, SIGNAL(columnsInserted(QModelIndex,int,int)),
+ this, SLOT(_q_updateSpanInsertedColumns(QModelIndex,int,int)));
+ connect(model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
+ this, SLOT(_q_updateSpanRemovedRows(QModelIndex,int,int)));
+ connect(model, SIGNAL(columnsRemoved(QModelIndex,int,int)),
+ this, SLOT(_q_updateSpanRemovedColumns(QModelIndex,int,int)));
+ d->verticalHeader->setModel(model);
+ d->horizontalHeader->setModel(model);
+ QAbstractItemView::setModel(model);
+}
+
+/*!
+ \reimp
+*/
+void QTableView::setRootIndex(const QModelIndex &index)
+{
+ Q_D(QTableView);
+ if (index == d->root) {
+ viewport()->update();
+ return;
+ }
+ d->verticalHeader->setRootIndex(index);
+ d->horizontalHeader->setRootIndex(index);
+ QAbstractItemView::setRootIndex(index);
+}
+
+/*!
+ \reimp
+*/
+void QTableView::setSelectionModel(QItemSelectionModel *selectionModel)
+{
+ Q_D(QTableView);
+ Q_ASSERT(selectionModel);
+ d->verticalHeader->setSelectionModel(selectionModel);
+ d->horizontalHeader->setSelectionModel(selectionModel);
+ QAbstractItemView::setSelectionModel(selectionModel);
+}
+
+/*!
+ Returns the table view's horizontal header.
+
+ \sa setHorizontalHeader(), verticalHeader(), QAbstractItemModel::headerData()
+*/
+QHeaderView *QTableView::horizontalHeader() const
+{
+ Q_D(const QTableView);
+ return d->horizontalHeader;
+}
+
+/*!
+ Returns the table view's vertical header.
+
+ \sa setVerticalHeader(), horizontalHeader(), QAbstractItemModel::headerData()
+*/
+QHeaderView *QTableView::verticalHeader() const
+{
+ Q_D(const QTableView);
+ return d->verticalHeader;
+}
+
+/*!
+ Sets the widget to use for the horizontal header to \a header.
+
+ \sa horizontalHeader() setVerticalHeader()
+*/
+void QTableView::setHorizontalHeader(QHeaderView *header)
+{
+ Q_D(QTableView);
+
+ if (!header || header == d->horizontalHeader)
+ return;
+ if (d->horizontalHeader && d->horizontalHeader->parent() == this)
+ delete d->horizontalHeader;
+ d->horizontalHeader = header;
+ d->horizontalHeader->setParent(this);
+ if (!d->horizontalHeader->model()) {
+ d->horizontalHeader->setModel(d->model);
+ if (d->selectionModel)
+ d->horizontalHeader->setSelectionModel(d->selectionModel);
+ }
+
+ connect(d->horizontalHeader,SIGNAL(sectionResized(int,int,int)),
+ this, SLOT(columnResized(int,int,int)));
+ connect(d->horizontalHeader, SIGNAL(sectionMoved(int,int,int)),
+ this, SLOT(columnMoved(int,int,int)));
+ connect(d->horizontalHeader, SIGNAL(sectionCountChanged(int,int)),
+ this, SLOT(columnCountChanged(int,int)));
+ connect(d->horizontalHeader, SIGNAL(sectionPressed(int)), this, SLOT(selectColumn(int)));
+ connect(d->horizontalHeader, SIGNAL(sectionEntered(int)), this, SLOT(_q_selectColumn(int)));
+ connect(d->horizontalHeader, SIGNAL(sectionHandleDoubleClicked(int)),
+ this, SLOT(resizeColumnToContents(int)));
+ connect(d->horizontalHeader, SIGNAL(geometriesChanged()), this, SLOT(updateGeometries()));
+
+ //update the sorting enabled states on the new header
+ setSortingEnabled(d->sortingEnabled);
+}
+
+/*!
+ Sets the widget to use for the vertical header to \a header.
+
+ \sa verticalHeader() setHorizontalHeader()
+*/
+void QTableView::setVerticalHeader(QHeaderView *header)
+{
+ Q_D(QTableView);
+
+ if (!header || header == d->verticalHeader)
+ return;
+ if (d->verticalHeader && d->verticalHeader->parent() == this)
+ delete d->verticalHeader;
+ d->verticalHeader = header;
+ d->verticalHeader->setParent(this);
+ if (!d->verticalHeader->model()) {
+ d->verticalHeader->setModel(d->model);
+ if (d->selectionModel)
+ d->verticalHeader->setSelectionModel(d->selectionModel);
+ }
+
+ connect(d->verticalHeader, SIGNAL(sectionResized(int,int,int)),
+ this, SLOT(rowResized(int,int,int)));
+ connect(d->verticalHeader, SIGNAL(sectionMoved(int,int,int)),
+ this, SLOT(rowMoved(int,int,int)));
+ connect(d->verticalHeader, SIGNAL(sectionCountChanged(int,int)),
+ this, SLOT(rowCountChanged(int,int)));
+ connect(d->verticalHeader, SIGNAL(sectionPressed(int)), this, SLOT(selectRow(int)));
+ connect(d->verticalHeader, SIGNAL(sectionEntered(int)), this, SLOT(_q_selectRow(int)));
+ connect(d->verticalHeader, SIGNAL(sectionHandleDoubleClicked(int)),
+ this, SLOT(resizeRowToContents(int)));
+ connect(d->verticalHeader, SIGNAL(geometriesChanged()), this, SLOT(updateGeometries()));
+}
+
+/*!
+ \internal
+
+ Scroll the contents of the table view by (\a dx, \a dy).
+*/
+void QTableView::scrollContentsBy(int dx, int dy)
+{
+ Q_D(QTableView);
+
+ d->delayedAutoScroll.stop(); // auto scroll was canceled by the user scrolling
+
+ dx = isRightToLeft() ? -dx : dx;
+ if (dx) {
+ if (horizontalScrollMode() == QAbstractItemView::ScrollPerItem) {
+ int oldOffset = d->horizontalHeader->offset();
+ if (horizontalScrollBar()->value() == horizontalScrollBar()->maximum())
+ d->horizontalHeader->setOffsetToLastSection();
+ else
+ d->horizontalHeader->setOffsetToSectionPosition(horizontalScrollBar()->value());
+ int newOffset = d->horizontalHeader->offset();
+ dx = isRightToLeft() ? newOffset - oldOffset : oldOffset - newOffset;
+ } else {
+ d->horizontalHeader->setOffset(horizontalScrollBar()->value());
+ }
+ }
+ if (dy) {
+ if (verticalScrollMode() == QAbstractItemView::ScrollPerItem) {
+ int oldOffset = d->verticalHeader->offset();
+ if (verticalScrollBar()->value() == verticalScrollBar()->maximum())
+ d->verticalHeader->setOffsetToLastSection();
+ else
+ d->verticalHeader->setOffsetToSectionPosition(verticalScrollBar()->value());
+ int newOffset = d->verticalHeader->offset();
+ dy = oldOffset - newOffset;
+ } else {
+ d->verticalHeader->setOffset(verticalScrollBar()->value());
+ }
+ }
+ d->scrollContentsBy(dx, dy);
+
+ if (d->showGrid) {
+ //we need to update the first line of the previous top item in the view
+ //because it has the grid drawn if the header is invisible.
+ //It is strictly related to what's done at then end of the paintEvent
+ if (dy > 0 && d->horizontalHeader->isHidden() && d->verticalScrollMode == ScrollPerItem) {
+ d->viewport->update(0, dy, d->viewport->width(), dy);
+ }
+ if (dx > 0 && d->verticalHeader->isHidden() && d->horizontalScrollMode == ScrollPerItem) {
+ d->viewport->update(dx, 0, dx, d->viewport->height());
+ }
+ }
+}
+
+/*!
+ \reimp
+*/
+QStyleOptionViewItem QTableView::viewOptions() const
+{
+ QStyleOptionViewItem option = QAbstractItemView::viewOptions();
+ option.showDecorationSelected = true;
+ return option;
+}
+
+/*!
+ Paints the table on receipt of the given paint event \a event.
+*/
+void QTableView::paintEvent(QPaintEvent *event)
+{
+ Q_D(QTableView);
+ // setup temp variables for the painting
+ QStyleOptionViewItemV4 option = d->viewOptionsV4();
+ const QPoint offset = d->scrollDelayOffset;
+ const bool showGrid = d->showGrid;
+ const int gridSize = showGrid ? 1 : 0;
+ const int gridHint = style()->styleHint(QStyle::SH_Table_GridLineColor, &option, this);
+ const QColor gridColor = static_cast<QRgb>(gridHint);
+ const QPen gridPen = QPen(gridColor, 0, d->gridStyle);
+ const QHeaderView *verticalHeader = d->verticalHeader;
+ const QHeaderView *horizontalHeader = d->horizontalHeader;
+ const QStyle::State state = option.state;
+ const bool alternate = d->alternatingColors;
+ const bool rightToLeft = isRightToLeft();
+
+ QPainter painter(d->viewport);
+
+ // if there's nothing to do, clear the area and return
+ if (horizontalHeader->count() == 0 || verticalHeader->count() == 0 || !d->itemDelegate)
+ return;
+
+ uint x = horizontalHeader->length() - horizontalHeader->offset() - (rightToLeft ? 0 : 1);
+ uint y = verticalHeader->length() - verticalHeader->offset() - 1;
+
+ const QRegion region = event->region().translated(offset);
+ const QVector<QRect> rects = region.rects();
+
+ //firstVisualRow is the visual index of the first visible row. lastVisualRow is the visual index of the last visible Row.
+ //same goes for ...VisualColumn
+ int firstVisualRow = qMax(verticalHeader->visualIndexAt(0),0);
+ int lastVisualRow = verticalHeader->visualIndexAt(verticalHeader->viewport()->height());
+ if (lastVisualRow == -1)
+ lastVisualRow = d->model->rowCount(d->root) - 1;
+
+ int firstVisualColumn = horizontalHeader->visualIndexAt(0);
+ int lastVisualColumn = horizontalHeader->visualIndexAt(horizontalHeader->viewport()->width());
+ if (rightToLeft)
+ qSwap(firstVisualColumn, lastVisualColumn);
+ if (firstVisualColumn == -1)
+ firstVisualColumn = 0;
+ if (lastVisualColumn == -1)
+ lastVisualColumn = horizontalHeader->count() - 1;
+
+ QBitArray drawn((lastVisualRow - firstVisualRow + 1) * (lastVisualColumn - firstVisualColumn + 1));
+
+ if (d->hasSpans()) {
+ d->drawAndClipSpans(region, &painter, option, &drawn,
+ firstVisualRow, lastVisualRow, firstVisualColumn, lastVisualColumn);
+ }
+
+ for (int i = 0; i < rects.size(); ++i) {
+ QRect dirtyArea = rects.at(i);
+ dirtyArea.setBottom(qMin(dirtyArea.bottom(), int(y)));
+ if (rightToLeft) {
+ dirtyArea.setLeft(qMax(dirtyArea.left(), d->viewport->width() - int(x)));
+ } else {
+ dirtyArea.setRight(qMin(dirtyArea.right(), int(x)));
+ }
+
+ // get the horizontal start and end visual sections
+ int left = horizontalHeader->visualIndexAt(dirtyArea.left());
+ int right = horizontalHeader->visualIndexAt(dirtyArea.right());
+ if (rightToLeft)
+ qSwap(left, right);
+ if (left == -1) left = 0;
+ if (right == -1) right = horizontalHeader->count() - 1;
+
+ // get the vertical start and end visual sections and if alternate color
+ int bottom = verticalHeader->visualIndexAt(dirtyArea.bottom());
+ if (bottom == -1) bottom = verticalHeader->count() - 1;
+ int top = 0;
+ bool alternateBase = false;
+ if (alternate && verticalHeader->sectionsHidden()) {
+ uint verticalOffset = verticalHeader->offset();
+ int row = verticalHeader->logicalIndex(top);
+ for (int y = 0;
+ ((uint)(y += verticalHeader->sectionSize(top)) <= verticalOffset) && (top < bottom);
+ ++top) {
+ row = verticalHeader->logicalIndex(top);
+ if (alternate && !verticalHeader->isSectionHidden(row))
+ alternateBase = !alternateBase;
+ }
+ } else {
+ top = verticalHeader->visualIndexAt(dirtyArea.top());
+ alternateBase = (top & 1) && alternate;
+ }
+ if (top == -1 || top > bottom)
+ continue;
+
+ // Paint each row item
+ for (int visualRowIndex = top; visualRowIndex <= bottom; ++visualRowIndex) {
+ int row = verticalHeader->logicalIndex(visualRowIndex);
+ if (verticalHeader->isSectionHidden(row))
+ continue;
+ int rowY = rowViewportPosition(row);
+ rowY += offset.y();
+ int rowh = rowHeight(row) - gridSize;
+
+ // Paint each column item
+ for (int visualColumnIndex = left; visualColumnIndex <= right; ++visualColumnIndex) {
+ int currentBit = (visualRowIndex - firstVisualRow) * (lastVisualColumn - firstVisualColumn + 1)
+ + visualColumnIndex - firstVisualColumn;
+
+ if (currentBit < 0 || currentBit >= drawn.size() || drawn.testBit(currentBit))
+ continue;
+ drawn.setBit(currentBit);
+
+ int col = horizontalHeader->logicalIndex(visualColumnIndex);
+ if (horizontalHeader->isSectionHidden(col))
+ continue;
+ int colp = columnViewportPosition(col);
+ colp += offset.x();
+ int colw = columnWidth(col) - gridSize;
+
+ const QModelIndex index = d->model->index(row, col, d->root);
+ if (index.isValid()) {
+ option.rect = QRect(colp + (showGrid && rightToLeft ? 1 : 0), rowY, colw, rowh);
+ if (alternate) {
+ if (alternateBase)
+ option.features |= QStyleOptionViewItemV2::Alternate;
+ else
+ option.features &= ~QStyleOptionViewItemV2::Alternate;
+ }
+ d->drawCell(&painter, option, index);
+ }
+ }
+ alternateBase = !alternateBase && alternate;
+ }
+
+ if (showGrid) {
+ // Find the bottom right (the last rows/coloumns might be hidden)
+ while (verticalHeader->isSectionHidden(verticalHeader->logicalIndex(bottom))) --bottom;
+ QPen old = painter.pen();
+ painter.setPen(gridPen);
+ // Paint each row
+ for (int visualIndex = top; visualIndex <= bottom; ++visualIndex) {
+ int row = verticalHeader->logicalIndex(visualIndex);
+ if (verticalHeader->isSectionHidden(row))
+ continue;
+ int rowY = rowViewportPosition(row);
+ rowY += offset.y();
+ int rowh = rowHeight(row) - gridSize;
+ painter.drawLine(dirtyArea.left(), rowY + rowh, dirtyArea.right(), rowY + rowh);
+ }
+
+ // Paint each column
+ for (int h = left; h <= right; ++h) {
+ int col = horizontalHeader->logicalIndex(h);
+ if (horizontalHeader->isSectionHidden(col))
+ continue;
+ int colp = columnViewportPosition(col);
+ colp += offset.x();
+ if (!rightToLeft)
+ colp += columnWidth(col) - gridSize;
+ painter.drawLine(colp, dirtyArea.top(), colp, dirtyArea.bottom());
+ }
+
+ //draw the top & left grid lines if the headers are not visible.
+ //We do update this line when subsequent scroll happen (see scrollContentsBy)
+ if (horizontalHeader->isHidden() && verticalScrollMode() == ScrollPerItem)
+ painter.drawLine(dirtyArea.left(), 0, dirtyArea.right(), 0);
+ if (verticalHeader->isHidden() && horizontalScrollMode() == ScrollPerItem)
+ painter.drawLine(0, dirtyArea.top(), 0, dirtyArea.bottom());
+ painter.setPen(old);
+ }
+ }
+
+#ifndef QT_NO_DRAGANDDROP
+ // Paint the dropIndicator
+ d->paintDropIndicator(&painter);
+#endif
+}
+
+/*!
+ Returns the index position of the model item corresponding to the
+ table item at position \a pos in contents coordinates.
+*/
+QModelIndex QTableView::indexAt(const QPoint &pos) const
+{
+ Q_D(const QTableView);
+ d->executePostedLayout();
+ int r = rowAt(pos.y());
+ int c = columnAt(pos.x());
+ if (r >= 0 && c >= 0) {
+ if (d->hasSpans()) {
+ QSpanCollection::Span span = d->span(r, c);
+ r = span.top();
+ c = span.left();
+ }
+ return d->model->index(r, c, d->root);
+ }
+ return QModelIndex();
+}
+
+/*!
+ Returns the horizontal offset of the items in the table view.
+
+ Note that the table view uses the horizontal header section
+ positions to determine the positions of columns in the view.
+
+ \sa verticalOffset()
+*/
+int QTableView::horizontalOffset() const
+{
+ Q_D(const QTableView);
+ return d->horizontalHeader->offset();
+}
+
+/*!
+ Returns the vertical offset of the items in the table view.
+
+ Note that the table view uses the vertical header section
+ positions to determine the positions of rows in the view.
+
+ \sa horizontalOffset()
+*/
+int QTableView::verticalOffset() const
+{
+ Q_D(const QTableView);
+ return d->verticalHeader->offset();
+}
+
+/*!
+ \fn QModelIndex QTableView::moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifiers)
+
+ Moves the cursor in accordance with the given \a cursorAction, using the
+ information provided by the \a modifiers.
+
+ \sa QAbstractItemView::CursorAction
+*/
+QModelIndex QTableView::moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifiers)
+{
+ Q_D(QTableView);
+ Q_UNUSED(modifiers);
+
+ int bottom = d->model->rowCount(d->root) - 1;
+ // make sure that bottom is the bottommost *visible* row
+ while (bottom >= 0 && isRowHidden(d->logicalRow(bottom)))
+ --bottom;
+
+ int right = d->model->columnCount(d->root) - 1;
+
+ while (right >= 0 && isColumnHidden(d->logicalColumn(right)))
+ --right;
+
+ if (bottom == -1 || right == -1)
+ return QModelIndex(); // model is empty
+
+ QModelIndex current = currentIndex();
+
+ if (!current.isValid()) {
+ int row = 0;
+ int column = 0;
+ while (column < right && isColumnHidden(d->logicalColumn(column)))
+ ++column;
+ while (isRowHidden(d->logicalRow(row)) && row < bottom)
+ ++row;
+ d->visualCursor = QPoint(column, row);
+ return d->model->index(d->logicalRow(row), d->logicalColumn(column), d->root);
+ }
+
+ // Update visual cursor if current index has changed.
+ QPoint visualCurrent(d->visualColumn(current.column()), d->visualRow(current.row()));
+ if (visualCurrent != d->visualCursor) {
+ if (d->hasSpans()) {
+ QSpanCollection::Span span = d->span(current.row(), current.column());
+ if (span.top() > d->visualCursor.y() || d->visualCursor.y() > span.bottom()
+ || span.left() > d->visualCursor.x() || d->visualCursor.x() > span.right())
+ d->visualCursor = visualCurrent;
+ } else {
+ d->visualCursor = visualCurrent;
+ }
+ }
+
+ int visualRow = d->visualCursor.y();
+ if (visualRow > bottom)
+ visualRow = bottom;
+ Q_ASSERT(visualRow != -1);
+ int visualColumn = d->visualCursor.x();
+ if (visualColumn > right)
+ visualColumn = right;
+ Q_ASSERT(visualColumn != -1);
+
+ if (isRightToLeft()) {
+ if (cursorAction == MoveLeft)
+ cursorAction = MoveRight;
+ else if (cursorAction == MoveRight)
+ cursorAction = MoveLeft;
+ }
+
+ switch (cursorAction) {
+ case MoveUp: {
+ int originalRow = visualRow;
+#ifdef QT_KEYPAD_NAVIGATION
+ if (QApplication::keypadNavigationEnabled() && visualRow == 0)
+ visualRow = d->visualRow(model()->rowCount() - 1) + 1;
+ // FIXME? visualRow = bottom + 1;
+#endif
+ int r = d->logicalRow(visualRow);
+ int c = d->logicalColumn(visualColumn);
+ if (r != -1 && d->hasSpans()) {
+ QSpanCollection::Span span = d->span(r, c);
+ if (span.width() > 1 || span.height() > 1)
+ visualRow = d->visualRow(span.top());
+ }
+ while (visualRow >= 0) {
+ --visualRow;
+ r = d->logicalRow(visualRow);
+ c = d->logicalColumn(visualColumn);
+ if (r == -1 || (!isRowHidden(r) && d->isCellEnabled(r, c)))
+ break;
+ }
+ if (visualRow < 0)
+ visualRow = originalRow;
+ break;
+ }
+ case MoveDown: {
+ int originalRow = visualRow;
+ if (d->hasSpans()) {
+ QSpanCollection::Span span = d->span(current.row(), current.column());
+ visualRow = d->visualRow(d->rowSpanEndLogical(span.top(), span.height()));
+ }
+#ifdef QT_KEYPAD_NAVIGATION
+ if (QApplication::keypadNavigationEnabled() && visualRow >= bottom)
+ visualRow = -1;
+#endif
+ int r = d->logicalRow(visualRow);
+ int c = d->logicalColumn(visualColumn);
+ if (r != -1 && d->hasSpans()) {
+ QSpanCollection::Span span = d->span(r, c);
+ if (span.width() > 1 || span.height() > 1)
+ visualRow = d->visualRow(d->rowSpanEndLogical(span.top(), span.height()));
+ }
+ while (visualRow <= bottom) {
+ ++visualRow;
+ r = d->logicalRow(visualRow);
+ c = d->logicalColumn(visualColumn);
+ if (r == -1 || (!isRowHidden(r) && d->isCellEnabled(r, c)))
+ break;
+ }
+ if (visualRow > bottom)
+ visualRow = originalRow;
+ break;
+ }
+ case MovePrevious:
+ case MoveLeft: {
+ int originalRow = visualRow;
+ int originalColumn = visualColumn;
+ bool firstTime = true;
+ bool looped = false;
+ bool wrapped = false;
+ do {
+ int r = d->logicalRow(visualRow);
+ int c = d->logicalColumn(visualColumn);
+ if (firstTime && c != -1 && d->hasSpans()) {
+ firstTime = false;
+ QSpanCollection::Span span = d->span(r, c);
+ if (span.width() > 1 || span.height() > 1)
+ visualColumn = d->visualColumn(span.left());
+ }
+ while (visualColumn >= 0) {
+ --visualColumn;
+ r = d->logicalRow(visualRow);
+ c = d->logicalColumn(visualColumn);
+ if (r == -1 || c == -1 || (!isRowHidden(r) && !isColumnHidden(c) && d->isCellEnabled(r, c)))
+ break;
+ if (wrapped && (originalRow < visualRow || (originalRow == visualRow && originalColumn <= visualColumn))) {
+ looped = true;
+ break;
+ }
+ }
+ if (cursorAction == MoveLeft || visualColumn >= 0)
+ break;
+ visualColumn = right + 1;
+ if (visualRow == 0) {
+ wrapped = true;
+ visualRow = bottom;
+ } else {
+ --visualRow;
+ }
+ } while (!looped);
+ if (visualColumn < 0)
+ visualColumn = originalColumn;
+ break;
+ }
+ case MoveNext:
+ case MoveRight: {
+ int originalRow = visualRow;
+ int originalColumn = visualColumn;
+ bool firstTime = true;
+ bool looped = false;
+ bool wrapped = false;
+ do {
+ int r = d->logicalRow(visualRow);
+ int c = d->logicalColumn(visualColumn);
+ if (firstTime && c != -1 && d->hasSpans()) {
+ firstTime = false;
+ QSpanCollection::Span span = d->span(r, c);
+ if (span.width() > 1 || span.height() > 1)
+ visualColumn = d->visualColumn(d->columnSpanEndLogical(span.left(), span.width()));
+ }
+ while (visualColumn <= right) {
+ ++visualColumn;
+ r = d->logicalRow(visualRow);
+ c = d->logicalColumn(visualColumn);
+ if (r == -1 || c == -1 || (!isRowHidden(r) && !isColumnHidden(c) && d->isCellEnabled(r, c)))
+ break;
+ if (wrapped && (originalRow > visualRow || (originalRow == visualRow && originalColumn >= visualColumn))) {
+ looped = true;
+ break;
+ }
+ }
+ if (cursorAction == MoveRight || visualColumn <= right)
+ break;
+ visualColumn = -1;
+ if (visualRow == bottom) {
+ wrapped = true;
+ visualRow = 0;
+ } else {
+ ++visualRow;
+ }
+ } while (!looped);
+ if (visualColumn > right)
+ visualColumn = originalColumn;
+ break;
+ }
+ case MoveHome:
+ visualColumn = 0;
+ while (visualColumn < right && d->isVisualColumnHiddenOrDisabled(visualRow, visualColumn))
+ ++visualColumn;
+ if (modifiers & Qt::ControlModifier) {
+ visualRow = 0;
+ while (visualRow < bottom && d->isVisualRowHiddenOrDisabled(visualRow, visualColumn))
+ ++visualRow;
+ }
+ break;
+ case MoveEnd:
+ visualColumn = right;
+ if (modifiers & Qt::ControlModifier)
+ visualRow = bottom;
+ break;
+ case MovePageUp: {
+ int newRow = rowAt(visualRect(current).top() - d->viewport->height());
+ if (newRow == -1)
+ newRow = d->logicalRow(0);
+ return d->model->index(newRow, current.column(), d->root);
+ }
+ case MovePageDown: {
+ int newRow = rowAt(visualRect(current).bottom() + d->viewport->height());
+ if (newRow == -1)
+ newRow = d->logicalRow(bottom);
+ return d->model->index(newRow, current.column(), d->root);
+ }}
+
+ d->visualCursor = QPoint(visualColumn, visualRow);
+ int logicalRow = d->logicalRow(visualRow);
+ int logicalColumn = d->logicalColumn(visualColumn);
+ if (!d->model->hasIndex(logicalRow, logicalColumn, d->root))
+ return QModelIndex();
+
+ QModelIndex result = d->model->index(logicalRow, logicalColumn, d->root);
+ if (!d->isRowHidden(logicalRow) && !d->isColumnHidden(logicalColumn) && d->isIndexEnabled(result))
+ return result;
+
+ return QModelIndex();
+}
+
+/*!
+ \fn void QTableView::setSelection(const QRect &rect,
+ QItemSelectionModel::SelectionFlags flags)
+
+ Selects the items within the given \a rect and in accordance with
+ the specified selection \a flags.
+*/
+void QTableView::setSelection(const QRect &rect, QItemSelectionModel::SelectionFlags command)
+{
+ Q_D(QTableView);
+ QModelIndex tl = indexAt(QPoint(isRightToLeft() ? qMax(rect.left(), rect.right())
+ : qMin(rect.left(), rect.right()), qMin(rect.top(), rect.bottom())));
+ QModelIndex br = indexAt(QPoint(isRightToLeft() ? qMin(rect.left(), rect.right()) :
+ qMax(rect.left(), rect.right()), qMax(rect.top(), rect.bottom())));
+ if (!d->selectionModel || !tl.isValid() || !br.isValid() || !d->isIndexEnabled(tl) || !d->isIndexEnabled(br))
+ return;
+
+ bool verticalMoved = verticalHeader()->sectionsMoved();
+ bool horizontalMoved = horizontalHeader()->sectionsMoved();
+
+ QItemSelection selection;
+
+ if (d->hasSpans()) {
+ bool expanded;
+ int top = qMin(d->visualRow(tl.row()), d->visualRow(br.row()));
+ int left = qMin(d->visualColumn(tl.column()), d->visualColumn(br.column()));
+ int bottom = qMax(d->visualRow(tl.row()), d->visualRow(br.row()));
+ int right = qMax(d->visualColumn(tl.column()), d->visualColumn(br.column()));
+ do {
+ expanded = false;
+ foreach (QSpanCollection::Span *it, d->spans.spans) {
+ const QSpanCollection::Span &span = *it;
+ int t = d->visualRow(span.top());
+ int l = d->visualColumn(span.left());
+ int b = d->visualRow(d->rowSpanEndLogical(span.top(), span.height()));
+ int r = d->visualColumn(d->columnSpanEndLogical(span.left(), span.width()));
+ if ((t > bottom) || (l > right) || (top > b) || (left > r))
+ continue; // no intersect
+ if (t < top) {
+ top = t;
+ expanded = true;
+ }
+ if (l < left) {
+ left = l;
+ expanded = true;
+ }
+ if (b > bottom) {
+ bottom = b;
+ expanded = true;
+ }
+ if (r > right) {
+ right = r;
+ expanded = true;
+ }
+ if (expanded)
+ break;
+ }
+ } while (expanded);
+ for (int horizontal = left; horizontal <= right; ++horizontal) {
+ int column = d->logicalColumn(horizontal);
+ for (int vertical = top; vertical <= bottom; ++vertical) {
+ int row = d->logicalRow(vertical);
+ QModelIndex index = d->model->index(row, column, d->root);
+ selection.append(QItemSelectionRange(index));
+ }
+ }
+ } else if (verticalMoved && horizontalMoved) {
+ int top = d->visualRow(tl.row());
+ int left = d->visualColumn(tl.column());
+ int bottom = d->visualRow(br.row());
+ int right = d->visualColumn(br.column());
+ for (int horizontal = left; horizontal <= right; ++horizontal) {
+ int column = d->logicalColumn(horizontal);
+ for (int vertical = top; vertical <= bottom; ++vertical) {
+ int row = d->logicalRow(vertical);
+ QModelIndex index = d->model->index(row, column, d->root);
+ selection.append(QItemSelectionRange(index));
+ }
+ }
+ } else if (horizontalMoved) {
+ int left = d->visualColumn(tl.column());
+ int right = d->visualColumn(br.column());
+ for (int visual = left; visual <= right; ++visual) {
+ int column = d->logicalColumn(visual);
+ QModelIndex topLeft = d->model->index(tl.row(), column, d->root);
+ QModelIndex bottomRight = d->model->index(br.row(), column, d->root);
+ selection.append(QItemSelectionRange(topLeft, bottomRight));
+ }
+ } else if (verticalMoved) {
+ int top = d->visualRow(tl.row());
+ int bottom = d->visualRow(br.row());
+ for (int visual = top; visual <= bottom; ++visual) {
+ int row = d->logicalRow(visual);
+ QModelIndex topLeft = d->model->index(row, tl.column(), d->root);
+ QModelIndex bottomRight = d->model->index(row, br.column(), d->root);
+ selection.append(QItemSelectionRange(topLeft, bottomRight));
+ }
+ } else { // nothing moved
+ selection.append(QItemSelectionRange(tl, br));
+ }
+
+ d->selectionModel->select(selection, command);
+}
+
+/*!
+ \internal
+
+ Returns the rectangle from the viewport of the items in the given
+ \a selection.
+*/
+QRegion QTableView::visualRegionForSelection(const QItemSelection &selection) const
+{
+ Q_D(const QTableView);
+
+ if (selection.isEmpty())
+ return QRegion();
+
+ QRegion selectionRegion;
+ bool verticalMoved = verticalHeader()->sectionsMoved();
+ bool horizontalMoved = horizontalHeader()->sectionsMoved();
+
+ if ((verticalMoved && horizontalMoved) || (d->hasSpans() && (verticalMoved || horizontalMoved))) {
+ for (int i = 0; i < selection.count(); ++i) {
+ QItemSelectionRange range = selection.at(i);
+ if (range.parent() != d->root || !range.isValid())
+ continue;
+ for (int r = range.top(); r <= range.bottom(); ++r)
+ for (int c = range.left(); c <= range.right(); ++c)
+ selectionRegion += QRegion(visualRect(d->model->index(r, c, d->root)));
+ }
+ } else if (horizontalMoved) {
+ for (int i = 0; i < selection.count(); ++i) {
+ QItemSelectionRange range = selection.at(i);
+ if (range.parent() != d->root || !range.isValid())
+ continue;
+ int top = rowViewportPosition(range.top());
+ int bottom = rowViewportPosition(range.bottom()) + rowHeight(range.bottom());
+ if (top > bottom)
+ qSwap<int>(top, bottom);
+ int height = bottom - top;
+ for (int c = range.left(); c <= range.right(); ++c)
+ selectionRegion += QRegion(QRect(columnViewportPosition(c), top,
+ columnWidth(c), height));
+ }
+ } else if (verticalMoved) {
+ for (int i = 0; i < selection.count(); ++i) {
+ QItemSelectionRange range = selection.at(i);
+ if (range.parent() != d->root || !range.isValid())
+ continue;
+ int left = columnViewportPosition(range.left());
+ int right = columnViewportPosition(range.right()) + columnWidth(range.right());
+ if (left > right)
+ qSwap<int>(left, right);
+ int width = right - left;
+ for (int r = range.top(); r <= range.bottom(); ++r)
+ selectionRegion += QRegion(QRect(left, rowViewportPosition(r),
+ width, rowHeight(r)));
+ }
+ } else { // nothing moved
+ for (int i = 0; i < selection.count(); ++i) {
+ QItemSelectionRange range = selection.at(i);
+ if (range.parent() != d->root || !range.isValid())
+ continue;
+ d->trimHiddenSelections(&range);
+
+ const int rtop = rowViewportPosition(range.top());
+ const int rbottom = rowViewportPosition(range.bottom()) + rowHeight(range.bottom());
+ const int rleft = columnViewportPosition(range.left());
+ const int rright = columnViewportPosition(range.right()) + columnWidth(range.right());
+ selectionRegion += QRect(QPoint(rleft, rtop), QPoint(rright, rbottom));
+ if (d->hasSpans()) {
+ foreach (QSpanCollection::Span *s,
+ d->spans.spansInRect(range.left(), range.top(), range.width(), range.height())) {
+ if (range.contains(s->top(), s->left(), range.parent()))
+ selectionRegion += d->visualSpanRect(*s);
+ }
+ }
+ }
+ }
+
+ return selectionRegion;
+}
+
+
+/*!
+ \reimp
+*/
+QModelIndexList QTableView::selectedIndexes() const
+{
+ Q_D(const QTableView);
+ QModelIndexList viewSelected;
+ QModelIndexList modelSelected;
+ if (d->selectionModel)
+ modelSelected = d->selectionModel->selectedIndexes();
+ for (int i = 0; i < modelSelected.count(); ++i) {
+ QModelIndex index = modelSelected.at(i);
+ if (!isIndexHidden(index) && index.parent() == d->root)
+ viewSelected.append(index);
+ }
+ return viewSelected;
+}
+
+
+/*!
+ This slot is called whenever rows are added or deleted. The
+ previous number of rows is specified by \a oldCount, and the new
+ number of rows is specified by \a newCount.
+*/
+void QTableView::rowCountChanged(int /*oldCount*/, int /*newCount*/ )
+{
+ Q_D(QTableView);
+ updateGeometries();
+ if (verticalScrollMode() == QAbstractItemView::ScrollPerItem)
+ d->verticalHeader->setOffsetToSectionPosition(verticalScrollBar()->value());
+ else
+ d->verticalHeader->setOffset(verticalScrollBar()->value());
+ d->viewport->update();
+}
+
+/*!
+ This slot is called whenever columns are added or deleted. The
+ previous number of columns is specified by \a oldCount, and the new
+ number of columns is specified by \a newCount.
+*/
+void QTableView::columnCountChanged(int, int)
+{
+ Q_D(QTableView);
+ updateGeometries();
+ if (horizontalScrollMode() == QAbstractItemView::ScrollPerItem)
+ d->horizontalHeader->setOffsetToSectionPosition(horizontalScrollBar()->value());
+ else
+ d->horizontalHeader->setOffset(horizontalScrollBar()->value());
+ d->viewport->update();
+}
+
+/*!
+ \reimp
+*/
+void QTableView::updateGeometries()
+{
+ Q_D(QTableView);
+ if (d->geometryRecursionBlock)
+ return;
+ d->geometryRecursionBlock = true;
+
+ int width = 0;
+ if (!d->verticalHeader->isHidden()) {
+ width = qMax(d->verticalHeader->minimumWidth(), d->verticalHeader->sizeHint().width());
+ width = qMin(width, d->verticalHeader->maximumWidth());
+ }
+ int height = 0;
+ if (!d->horizontalHeader->isHidden()) {
+ height = qMax(d->horizontalHeader->minimumHeight(), d->horizontalHeader->sizeHint().height());
+ height = qMin(height, d->horizontalHeader->maximumHeight());
+ }
+ bool reverse = isRightToLeft();
+ if (reverse)
+ setViewportMargins(0, height, width, 0);
+ else
+ setViewportMargins(width, height, 0, 0);
+
+ // update headers
+
+ QRect vg = d->viewport->geometry();
+
+ int verticalLeft = reverse ? vg.right() + 1 : (vg.left() - width);
+ d->verticalHeader->setGeometry(verticalLeft, vg.top(), width, vg.height());
+ if (d->verticalHeader->isHidden())
+ QMetaObject::invokeMethod(d->verticalHeader, "updateGeometries");
+
+ int horizontalTop = vg.top() - height;
+ d->horizontalHeader->setGeometry(vg.left(), horizontalTop, vg.width(), height);
+ if (d->horizontalHeader->isHidden())
+ QMetaObject::invokeMethod(d->horizontalHeader, "updateGeometries");
+
+ // update cornerWidget
+ if (d->horizontalHeader->isHidden() || d->verticalHeader->isHidden()) {
+ d->cornerWidget->setHidden(true);
+ } else {
+ d->cornerWidget->setHidden(false);
+ d->cornerWidget->setGeometry(verticalLeft, horizontalTop, width, height);
+ }
+
+ // update scroll bars
+
+ // ### move this block into the if
+ QSize vsize = d->viewport->size();
+ QSize max = maximumViewportSize();
+ uint horizontalLength = d->horizontalHeader->length();
+ uint verticalLength = d->verticalHeader->length();
+ if ((uint)max.width() >= horizontalLength && (uint)max.height() >= verticalLength)
+ vsize = max;
+
+ // horizontal scroll bar
+ const int columnCount = d->horizontalHeader->count();
+ const int viewportWidth = vsize.width();
+ int columnsInViewport = 0;
+ for (int width = 0, column = columnCount - 1; column >= 0; --column) {
+ int logical = d->horizontalHeader->logicalIndex(column);
+ if (!d->horizontalHeader->isSectionHidden(logical)) {
+ width += d->horizontalHeader->sectionSize(logical);
+ if (width > viewportWidth)
+ break;
+ ++columnsInViewport;
+ }
+ }
+ columnsInViewport = qMax(columnsInViewport, 1); //there must be always at least 1 column
+
+ if (horizontalScrollMode() == QAbstractItemView::ScrollPerItem) {
+ const int visibleColumns = columnCount - d->horizontalHeader->hiddenSectionCount();
+ horizontalScrollBar()->setRange(0, visibleColumns - columnsInViewport);
+ horizontalScrollBar()->setPageStep(columnsInViewport);
+ if (columnsInViewport >= visibleColumns)
+ d->horizontalHeader->setOffset(0);
+ horizontalScrollBar()->setSingleStep(1);
+ } else { // ScrollPerPixel
+ horizontalScrollBar()->setPageStep(vsize.width());
+ horizontalScrollBar()->setRange(0, horizontalLength - vsize.width());
+ horizontalScrollBar()->setSingleStep(qMax(vsize.width() / (columnsInViewport + 1), 2));
+ }
+
+ // vertical scroll bar
+ const int rowCount = d->verticalHeader->count();
+ const int viewportHeight = vsize.height();
+ int rowsInViewport = 0;
+ for (int height = 0, row = rowCount - 1; row >= 0; --row) {
+ int logical = d->verticalHeader->logicalIndex(row);
+ if (!d->verticalHeader->isSectionHidden(logical)) {
+ height += d->verticalHeader->sectionSize(logical);
+ if (height > viewportHeight)
+ break;
+ ++rowsInViewport;
+ }
+ }
+ rowsInViewport = qMax(rowsInViewport, 1); //there must be always at least 1 row
+
+ if (verticalScrollMode() == QAbstractItemView::ScrollPerItem) {
+ const int visibleRows = rowCount - d->verticalHeader->hiddenSectionCount();
+ verticalScrollBar()->setRange(0, visibleRows - rowsInViewport);
+ verticalScrollBar()->setPageStep(rowsInViewport);
+ if (rowsInViewport >= visibleRows)
+ d->verticalHeader->setOffset(0);
+ verticalScrollBar()->setSingleStep(1);
+ } else { // ScrollPerPixel
+ verticalScrollBar()->setPageStep(vsize.height());
+ verticalScrollBar()->setRange(0, verticalLength - vsize.height());
+ verticalScrollBar()->setSingleStep(qMax(vsize.height() / (rowsInViewport + 1), 2));
+ }
+
+ d->geometryRecursionBlock = false;
+ QAbstractItemView::updateGeometries();
+}
+
+/*!
+ Returns the size hint for the given \a row's height or -1 if there
+ is no model.
+
+ If you need to set the height of a given row to a fixed value, call
+ QHeaderView::resizeSection() on the table's vertical header.
+
+ If you reimplement this function in a subclass, note that the value you
+ return is only used when resizeRowToContents() is called. In that case,
+ if a larger row height is required by either the vertical header or
+ the item delegate, that width will be used instead.
+
+ \sa QWidget::sizeHint, verticalHeader()
+*/
+int QTableView::sizeHintForRow(int row) const
+{
+ Q_D(const QTableView);
+
+ if (!model())
+ return -1;
+
+ int left = qMax(0, columnAt(0));
+ int right = columnAt(d->viewport->width());
+ if (right == -1) // the table don't have enough columns to fill the viewport
+ right = d->model->columnCount(d->root) - 1;
+
+ QStyleOptionViewItemV4 option = d->viewOptionsV4();
+
+ int hint = 0;
+ QModelIndex index;
+ for (int column = left; column <= right; ++column) {
+ int logicalColumn = d->horizontalHeader->logicalIndex(column);
+ if (d->horizontalHeader->isSectionHidden(logicalColumn))
+ continue;
+ index = d->model->index(row, logicalColumn, d->root);
+ if (d->wrapItemText) {// for wrapping boundaries
+ option.rect.setY(rowViewportPosition(index.row()));
+ option.rect.setHeight(rowHeight(index.row()));
+ option.rect.setX(columnViewportPosition(index.column()));
+ option.rect.setWidth(columnWidth(index.column()));
+ }
+
+ QWidget *editor = d->editorForIndex(index).editor;
+ if (editor && d->persistent.contains(editor)) {
+ hint = qMax(hint, editor->sizeHint().height());
+ int min = editor->minimumSize().height();
+ int max = editor->maximumSize().height();
+ hint = qBound(min, hint, max);
+ }
+
+ hint = qMax(hint, itemDelegate(index)->sizeHint(option, index).height());
+ }
+
+ return d->showGrid ? hint + 1 : hint;
+}
+
+/*!
+ Returns the size hint for the given \a column's width or -1 if
+ there is no model.
+
+ If you need to set the width of a given column to a fixed value, call
+ QHeaderView::resizeSection() on the table's horizontal header.
+
+ If you reimplement this function in a subclass, note that the value you
+ return will be used when resizeColumnToContents() or
+ QHeaderView::resizeSections() is called. If a larger column width is
+ required by either the horizontal header or the item delegate, the larger
+ width will be used instead.
+
+ \sa QWidget::sizeHint, horizontalHeader()
+*/
+int QTableView::sizeHintForColumn(int column) const
+{
+ Q_D(const QTableView);
+
+ if (!model())
+ return -1;
+
+ int top = qMax(0, rowAt(0));
+ int bottom = rowAt(d->viewport->height());
+ if (!isVisible() || bottom == -1) // the table don't have enough rows to fill the viewport
+ bottom = d->model->rowCount(d->root) - 1;
+
+ QStyleOptionViewItemV4 option = d->viewOptionsV4();
+
+ int hint = 0;
+ QModelIndex index;
+ for (int row = top; row <= bottom; ++row) {
+ int logicalRow = d->verticalHeader->logicalIndex(row);
+ if (d->verticalHeader->isSectionHidden(logicalRow))
+ continue;
+ index = d->model->index(logicalRow, column, d->root);
+
+ QWidget *editor = d->editorForIndex(index).editor;
+ if (editor && d->persistent.contains(editor)) {
+ hint = qMax(hint, editor->sizeHint().width());
+ int min = editor->minimumSize().width();
+ int max = editor->maximumSize().width();
+ hint = qBound(min, hint, max);
+ }
+
+ hint = qMax(hint, itemDelegate(index)->sizeHint(option, index).width());
+ }
+
+ return d->showGrid ? hint + 1 : hint;
+}
+
+/*!
+ Returns the y-coordinate in contents coordinates of the given \a
+ row.
+*/
+int QTableView::rowViewportPosition(int row) const
+{
+ Q_D(const QTableView);
+ return d->verticalHeader->sectionViewportPosition(row);
+}
+
+/*!
+ Returns the row in which the given y-coordinate, \a y, in contents
+ coordinates is located.
+
+ \note This function returns -1 if the given coordinate is not valid
+ (has no row).
+
+ \sa columnAt()
+*/
+int QTableView::rowAt(int y) const
+{
+ Q_D(const QTableView);
+ return d->verticalHeader->logicalIndexAt(y);
+}
+
+/*!
+ \since 4.1
+
+ Sets the height of the given \a row to be \a height.
+*/
+void QTableView::setRowHeight(int row, int height)
+{
+ Q_D(const QTableView);
+ d->verticalHeader->resizeSection(row, height);
+}
+
+/*!
+ Returns the height of the given \a row.
+
+ \sa resizeRowToContents(), columnWidth()
+*/
+int QTableView::rowHeight(int row) const
+{
+ Q_D(const QTableView);
+ return d->verticalHeader->sectionSize(row);
+}
+
+/*!
+ Returns the x-coordinate in contents coordinates of the given \a
+ column.
+*/
+int QTableView::columnViewportPosition(int column) const
+{
+ Q_D(const QTableView);
+ return d->horizontalHeader->sectionViewportPosition(column);
+}
+
+/*!
+ Returns the column in which the given x-coordinate, \a x, in contents
+ coordinates is located.
+
+ \note This function returns -1 if the given coordinate is not valid
+ (has no column).
+
+ \sa rowAt()
+*/
+int QTableView::columnAt(int x) const
+{
+ Q_D(const QTableView);
+ return d->horizontalHeader->logicalIndexAt(x);
+}
+
+/*!
+ \since 4.1
+
+ Sets the width of the given \a column to be \a width.
+*/
+void QTableView::setColumnWidth(int column, int width)
+{
+ Q_D(const QTableView);
+ d->horizontalHeader->resizeSection(column, width);
+}
+
+/*!
+ Returns the width of the given \a column.
+
+ \sa resizeColumnToContents(), rowHeight()
+*/
+int QTableView::columnWidth(int column) const
+{
+ Q_D(const QTableView);
+ return d->horizontalHeader->sectionSize(column);
+}
+
+/*!
+ Returns true if the given \a row is hidden; otherwise returns false.
+
+ \sa isColumnHidden()
+*/
+bool QTableView::isRowHidden(int row) const
+{
+ Q_D(const QTableView);
+ return d->verticalHeader->isSectionHidden(row);
+}
+
+/*!
+ If \a hide is true \a row will be hidden, otherwise it will be shown.
+
+ \sa setColumnHidden()
+*/
+void QTableView::setRowHidden(int row, bool hide)
+{
+ Q_D(QTableView);
+ if (row < 0 || row >= d->verticalHeader->count())
+ return;
+ d->verticalHeader->setSectionHidden(row, hide);
+}
+
+/*!
+ Returns true if the given \a column is hidden; otherwise returns false.
+
+ \sa isRowHidden()
+*/
+bool QTableView::isColumnHidden(int column) const
+{
+ Q_D(const QTableView);
+ return d->horizontalHeader->isSectionHidden(column);
+}
+
+/*!
+ If \a hide is true the given \a column will be hidden; otherwise it
+ will be shown.
+
+ \sa setRowHidden()
+*/
+void QTableView::setColumnHidden(int column, bool hide)
+{
+ Q_D(QTableView);
+ if (column < 0 || column >= d->horizontalHeader->count())
+ return;
+ d->horizontalHeader->setSectionHidden(column, hide);
+}
+
+/*!
+ \since 4.2
+ \property QTableView::sortingEnabled
+ \brief whether sorting is enabled
+
+ If this property is true, sorting is enabled for the table; if the
+ property is false, sorting is not enabled. The default value is false.
+
+ \sa sortByColumn()
+*/
+
+void QTableView::setSortingEnabled(bool enable)
+{
+ Q_D(QTableView);
+ d->sortingEnabled = enable;
+ horizontalHeader()->setSortIndicatorShown(enable);
+ if (enable) {
+ disconnect(d->horizontalHeader, SIGNAL(sectionEntered(int)),
+ this, SLOT(_q_selectColumn(int)));
+ disconnect(horizontalHeader(), SIGNAL(sectionPressed(int)),
+ this, SLOT(selectColumn(int)));
+ connect(horizontalHeader(), SIGNAL(sortIndicatorChanged(int,Qt::SortOrder)),
+ this, SLOT(sortByColumn(int)), Qt::UniqueConnection);
+ sortByColumn(horizontalHeader()->sortIndicatorSection(),
+ horizontalHeader()->sortIndicatorOrder());
+ } else {
+ connect(d->horizontalHeader, SIGNAL(sectionEntered(int)),
+ this, SLOT(_q_selectColumn(int)), Qt::UniqueConnection);
+ connect(horizontalHeader(), SIGNAL(sectionPressed(int)),
+ this, SLOT(selectColumn(int)), Qt::UniqueConnection);
+ disconnect(horizontalHeader(), SIGNAL(sortIndicatorChanged(int,Qt::SortOrder)),
+ this, SLOT(sortByColumn(int)));
+ }
+}
+
+bool QTableView::isSortingEnabled() const
+{
+ Q_D(const QTableView);
+ return d->sortingEnabled;
+}
+
+/*!
+ \property QTableView::showGrid
+ \brief whether the grid is shown
+
+ If this property is true a grid is drawn for the table; if the
+ property is false, no grid is drawn. The default value is true.
+*/
+bool QTableView::showGrid() const
+{
+ Q_D(const QTableView);
+ return d->showGrid;
+}
+
+void QTableView::setShowGrid(bool show)
+{
+ Q_D(QTableView);
+ if (d->showGrid != show) {
+ d->showGrid = show;
+ d->viewport->update();
+ }
+}
+
+/*!
+ \property QTableView::gridStyle
+ \brief the pen style used to draw the grid.
+
+ This property holds the style used when drawing the grid (see \l{showGrid}).
+*/
+Qt::PenStyle QTableView::gridStyle() const
+{
+ Q_D(const QTableView);
+ return d->gridStyle;
+}
+
+void QTableView::setGridStyle(Qt::PenStyle style)
+{
+ Q_D(QTableView);
+ if (d->gridStyle != style) {
+ d->gridStyle = style;
+ d->viewport->update();
+ }
+}
+
+/*!
+ \property QTableView::wordWrap
+ \brief the item text word-wrapping policy
+ \since 4.3
+
+ If this property is true then the item text is wrapped where
+ necessary at word-breaks; otherwise it is not wrapped at all.
+ This property is true by default.
+
+ Note that even of wrapping is enabled, the cell will not be
+ expanded to fit all text. Ellipsis will be inserted according to
+ the current \l{QAbstractItemView::}{textElideMode}.
+
+*/
+void QTableView::setWordWrap(bool on)
+{
+ Q_D(QTableView);
+ if (d->wrapItemText == on)
+ return;
+ d->wrapItemText = on;
+ QMetaObject::invokeMethod(d->verticalHeader, "resizeSections");
+ QMetaObject::invokeMethod(d->horizontalHeader, "resizeSections");
+}
+
+bool QTableView::wordWrap() const
+{
+ Q_D(const QTableView);
+ return d->wrapItemText;
+}
+
+/*!
+ \property QTableView::cornerButtonEnabled
+ \brief whether the button in the top-left corner is enabled
+ \since 4.3
+
+ If this property is true then button in the top-left corner
+ of the table view is enabled. Clicking on this button will
+ select all the cells in the table view.
+
+ This property is true by default.
+*/
+void QTableView::setCornerButtonEnabled(bool enable)
+{
+ Q_D(QTableView);
+ d->cornerWidget->setEnabled(enable);
+}
+
+bool QTableView::isCornerButtonEnabled() const
+{
+ Q_D(const QTableView);
+ return d->cornerWidget->isEnabled();
+}
+
+/*!
+ \internal
+
+ Returns the rectangle on the viewport occupied by the given \a
+ index.
+ If the index is hidden in the view it will return a null QRect.
+*/
+QRect QTableView::visualRect(const QModelIndex &index) const
+{
+ Q_D(const QTableView);
+ if (!d->isIndexValid(index) || index.parent() != d->root
+ || (!d->hasSpans() && isIndexHidden(index)))
+ return QRect();
+
+ d->executePostedLayout();
+
+ if (d->hasSpans()) {
+ QSpanCollection::Span span = d->span(index.row(), index.column());
+ return d->visualSpanRect(span);
+ }
+
+ int rowp = rowViewportPosition(index.row());
+ int rowh = rowHeight(index.row());
+ int colp = columnViewportPosition(index.column());
+ int colw = columnWidth(index.column());
+
+ const int i = showGrid() ? 1 : 0;
+ return QRect(colp, rowp, colw - i, rowh - i);
+}
+
+/*!
+ \internal
+
+ Makes sure that the given \a item is visible in the table view,
+ scrolling if necessary.
+*/
+void QTableView::scrollTo(const QModelIndex &index, ScrollHint hint)
+{
+ Q_D(QTableView);
+
+ // check if we really need to do anything
+ if (!d->isIndexValid(index)
+ || (d->model->parent(index) != d->root)
+ || isIndexHidden(index))
+ return;
+
+ QSpanCollection::Span span;
+ if (d->hasSpans())
+ span = d->span(index.row(), index.column());
+
+ // Adjust horizontal position
+
+ int viewportWidth = d->viewport->width();
+ int horizontalOffset = d->horizontalHeader->offset();
+ int horizontalPosition = d->horizontalHeader->sectionPosition(index.column());
+ int horizontalIndex = d->horizontalHeader->visualIndex(index.column());
+ int cellWidth = d->hasSpans()
+ ? d->columnSpanWidth(index.column(), span.width())
+ : d->horizontalHeader->sectionSize(index.column());
+
+ if (horizontalScrollMode() == QAbstractItemView::ScrollPerItem) {
+
+ bool positionAtLeft = (horizontalPosition - horizontalOffset < 0);
+ bool positionAtRight = (horizontalPosition - horizontalOffset + cellWidth > viewportWidth);
+
+ if (hint == PositionAtCenter || positionAtRight) {
+ int w = (hint == PositionAtCenter ? viewportWidth / 2 : viewportWidth);
+ int x = cellWidth;
+ while (horizontalIndex > 0) {
+ x += columnWidth(d->horizontalHeader->logicalIndex(horizontalIndex-1));
+ if (x > w)
+ break;
+ --horizontalIndex;
+ }
+ }
+
+ if (positionAtRight || hint == PositionAtCenter || positionAtLeft) {
+ int hiddenSections = 0;
+ if (d->horizontalHeader->sectionsHidden()) {
+ for (int s = horizontalIndex - 1; s >= 0; --s) {
+ int column = d->horizontalHeader->logicalIndex(s);
+ if (d->horizontalHeader->isSectionHidden(column))
+ ++hiddenSections;
+ }
+ }
+ horizontalScrollBar()->setValue(horizontalIndex - hiddenSections);
+ }
+
+ } else { // ScrollPerPixel
+ if (hint == PositionAtCenter) {
+ horizontalScrollBar()->setValue(horizontalPosition - ((viewportWidth - cellWidth) / 2));
+ } else {
+ if (horizontalPosition - horizontalOffset < 0 || cellWidth > viewportWidth)
+ horizontalScrollBar()->setValue(horizontalPosition);
+ else if (horizontalPosition - horizontalOffset + cellWidth > viewportWidth)
+ horizontalScrollBar()->setValue(horizontalPosition - viewportWidth + cellWidth);
+ }
+ }
+
+ // Adjust vertical position
+
+ int viewportHeight = d->viewport->height();
+ int verticalOffset = d->verticalHeader->offset();
+ int verticalPosition = d->verticalHeader->sectionPosition(index.row());
+ int verticalIndex = d->verticalHeader->visualIndex(index.row());
+ int cellHeight = d->hasSpans()
+ ? d->rowSpanHeight(index.row(), span.height())
+ : d->verticalHeader->sectionSize(index.row());
+
+ if (verticalPosition - verticalOffset < 0 || cellHeight > viewportHeight) {
+ if (hint == EnsureVisible)
+ hint = PositionAtTop;
+ } else if (verticalPosition - verticalOffset + cellHeight > viewportHeight) {
+ if (hint == EnsureVisible)
+ hint = PositionAtBottom;
+ }
+
+ if (verticalScrollMode() == QAbstractItemView::ScrollPerItem) {
+
+ if (hint == PositionAtBottom || hint == PositionAtCenter) {
+ int h = (hint == PositionAtCenter ? viewportHeight / 2 : viewportHeight);
+ int y = cellHeight;
+ while (verticalIndex > 0) {
+ int row = d->verticalHeader->logicalIndex(verticalIndex - 1);
+ y += d->verticalHeader->sectionSize(row);
+ if (y > h)
+ break;
+ --verticalIndex;
+ }
+ }
+
+ if (hint == PositionAtBottom || hint == PositionAtCenter || hint == PositionAtTop) {
+ int hiddenSections = 0;
+ if (d->verticalHeader->sectionsHidden()) {
+ for (int s = verticalIndex - 1; s >= 0; --s) {
+ int row = d->verticalHeader->logicalIndex(s);
+ if (d->verticalHeader->isSectionHidden(row))
+ ++hiddenSections;
+ }
+ }
+ verticalScrollBar()->setValue(verticalIndex - hiddenSections);
+ }
+
+ } else { // ScrollPerPixel
+ if (hint == PositionAtTop) {
+ verticalScrollBar()->setValue(verticalPosition);
+ } else if (hint == PositionAtBottom) {
+ verticalScrollBar()->setValue(verticalPosition - viewportHeight + cellHeight);
+ } else if (hint == PositionAtCenter) {
+ verticalScrollBar()->setValue(verticalPosition - ((viewportHeight - cellHeight) / 2));
+ }
+ }
+
+ update(index);
+}
+
+/*!
+ This slot is called to change the height of the given \a row. The
+ old height is specified by \a oldHeight, and the new height by \a
+ newHeight.
+
+ \sa columnResized()
+*/
+void QTableView::rowResized(int row, int, int)
+{
+ Q_D(QTableView);
+ d->rowsToUpdate.append(row);
+ if (d->rowResizeTimerID == 0)
+ d->rowResizeTimerID = startTimer(0);
+}
+
+/*!
+ This slot is called to change the width of the given \a column.
+ The old width is specified by \a oldWidth, and the new width by \a
+ newWidth.
+
+ \sa rowResized()
+*/
+void QTableView::columnResized(int column, int, int)
+{
+ Q_D(QTableView);
+ d->columnsToUpdate.append(column);
+ if (d->columnResizeTimerID == 0)
+ d->columnResizeTimerID = startTimer(0);
+}
+
+/*!
+ \reimp
+ */
+void QTableView::timerEvent(QTimerEvent *event)
+{
+ Q_D(QTableView);
+
+ if (event->timerId() == d->columnResizeTimerID) {
+ updateGeometries();
+ killTimer(d->columnResizeTimerID);
+ d->columnResizeTimerID = 0;
+
+ QRect rect;
+ int viewportHeight = d->viewport->height();
+ int viewportWidth = d->viewport->width();
+ if (d->hasSpans()) {
+ rect = QRect(0, 0, viewportWidth, viewportHeight);
+ } else {
+ for (int i = d->columnsToUpdate.size()-1; i >= 0; --i) {
+ int column = d->columnsToUpdate.at(i);
+ int x = columnViewportPosition(column);
+ if (isRightToLeft())
+ rect |= QRect(0, 0, x + columnWidth(column), viewportHeight);
+ else
+ rect |= QRect(x, 0, viewportWidth - x, viewportHeight);
+ }
+ }
+
+ d->viewport->update(rect.normalized());
+ d->columnsToUpdate.clear();
+ }
+
+ if (event->timerId() == d->rowResizeTimerID) {
+ updateGeometries();
+ killTimer(d->rowResizeTimerID);
+ d->rowResizeTimerID = 0;
+
+ int viewportHeight = d->viewport->height();
+ int viewportWidth = d->viewport->width();
+ int top;
+ if (d->hasSpans()) {
+ top = 0;
+ } else {
+ top = viewportHeight;
+ for (int i = d->rowsToUpdate.size()-1; i >= 0; --i) {
+ int y = rowViewportPosition(d->rowsToUpdate.at(i));
+ top = qMin(top, y);
+ }
+ }
+
+ d->viewport->update(QRect(0, top, viewportWidth, viewportHeight - top));
+ d->rowsToUpdate.clear();
+ }
+
+ QAbstractItemView::timerEvent(event);
+}
+
+/*!
+ This slot is called to change the index of the given \a row in the
+ table view. The old index is specified by \a oldIndex, and the new
+ index by \a newIndex.
+
+ \sa columnMoved()
+*/
+void QTableView::rowMoved(int, int oldIndex, int newIndex)
+{
+ Q_D(QTableView);
+
+ updateGeometries();
+ int logicalOldIndex = d->verticalHeader->logicalIndex(oldIndex);
+ int logicalNewIndex = d->verticalHeader->logicalIndex(newIndex);
+ if (d->hasSpans()) {
+ d->viewport->update();
+ } else {
+ int oldTop = rowViewportPosition(logicalOldIndex);
+ int newTop = rowViewportPosition(logicalNewIndex);
+ int oldBottom = oldTop + rowHeight(logicalOldIndex);
+ int newBottom = newTop + rowHeight(logicalNewIndex);
+ int top = qMin(oldTop, newTop);
+ int bottom = qMax(oldBottom, newBottom);
+ int height = bottom - top;
+ d->viewport->update(0, top, d->viewport->width(), height);
+ }
+}
+
+/*!
+ This slot is called to change the index of the given \a column in
+ the table view. The old index is specified by \a oldIndex, and
+ the new index by \a newIndex.
+
+ \sa rowMoved()
+*/
+void QTableView::columnMoved(int, int oldIndex, int newIndex)
+{
+ Q_D(QTableView);
+
+ updateGeometries();
+ int logicalOldIndex = d->horizontalHeader->logicalIndex(oldIndex);
+ int logicalNewIndex = d->horizontalHeader->logicalIndex(newIndex);
+ if (d->hasSpans()) {
+ d->viewport->update();
+ } else {
+ int oldLeft = columnViewportPosition(logicalOldIndex);
+ int newLeft = columnViewportPosition(logicalNewIndex);
+ int oldRight = oldLeft + columnWidth(logicalOldIndex);
+ int newRight = newLeft + columnWidth(logicalNewIndex);
+ int left = qMin(oldLeft, newLeft);
+ int right = qMax(oldRight, newRight);
+ int width = right - left;
+ d->viewport->update(left, 0, width, d->viewport->height());
+ }
+}
+
+/*!
+ Selects the given \a row in the table view if the current
+ SelectionMode and SelectionBehavior allows rows to be selected.
+
+ \sa selectColumn()
+*/
+void QTableView::selectRow(int row)
+{
+ Q_D(QTableView);
+ d->selectRow(row, true);
+}
+
+/*!
+ Selects the given \a column in the table view if the current
+ SelectionMode and SelectionBehavior allows columns to be selected.
+
+ \sa selectRow()
+*/
+void QTableView::selectColumn(int column)
+{
+ Q_D(QTableView);
+ d->selectColumn(column, true);
+}
+
+/*!
+ Hide the given \a row.
+
+ \sa showRow() hideColumn()
+*/
+void QTableView::hideRow(int row)
+{
+ Q_D(QTableView);
+ d->verticalHeader->hideSection(row);
+}
+
+/*!
+ Hide the given \a column.
+
+ \sa showColumn() hideRow()
+*/
+void QTableView::hideColumn(int column)
+{
+ Q_D(QTableView);
+ d->horizontalHeader->hideSection(column);
+}
+
+/*!
+ Show the given \a row.
+
+ \sa hideRow() showColumn()
+*/
+void QTableView::showRow(int row)
+{
+ Q_D(QTableView);
+ d->verticalHeader->showSection(row);
+}
+
+/*!
+ Show the given \a column.
+
+ \sa hideColumn() showRow()
+*/
+void QTableView::showColumn(int column)
+{
+ Q_D(QTableView);
+ d->horizontalHeader->showSection(column);
+}
+
+/*!
+ Resizes the given \a row based on the size hints of the delegate
+ used to render each item in the row.
+*/
+void QTableView::resizeRowToContents(int row)
+{
+ Q_D(QTableView);
+ int content = sizeHintForRow(row);
+ int header = d->verticalHeader->sectionSizeHint(row);
+ d->verticalHeader->resizeSection(row, qMax(content, header));
+}
+
+/*!
+ Resizes all rows based on the size hints of the delegate
+ used to render each item in the rows.
+*/
+void QTableView::resizeRowsToContents()
+{
+ Q_D(QTableView);
+ d->verticalHeader->resizeSections(QHeaderView::ResizeToContents);
+}
+
+/*!
+ Resizes the given \a column based on the size hints of the delegate
+ used to render each item in the column.
+
+ \note Only visible columns will be resized. Reimplement sizeHintForColumn()
+ to resize hidden columns as well.
+*/
+void QTableView::resizeColumnToContents(int column)
+{
+ Q_D(QTableView);
+ int content = sizeHintForColumn(column);
+ int header = d->horizontalHeader->sectionSizeHint(column);
+ d->horizontalHeader->resizeSection(column, qMax(content, header));
+}
+
+/*!
+ Resizes all columns based on the size hints of the delegate
+ used to render each item in the columns.
+*/
+void QTableView::resizeColumnsToContents()
+{
+ Q_D(QTableView);
+ d->horizontalHeader->resizeSections(QHeaderView::ResizeToContents);
+}
+
+/*!
+ \obsolete
+ \overload
+
+ Sorts the model by the values in the given \a column.
+*/
+void QTableView::sortByColumn(int column)
+{
+ Q_D(QTableView);
+ if (column == -1)
+ return;
+ d->model->sort(column, d->horizontalHeader->sortIndicatorOrder());
+}
+
+/*!
+ \since 4.2
+
+ Sorts the model by the values in the given \a column in the given \a order.
+
+ \sa sortingEnabled
+ */
+void QTableView::sortByColumn(int column, Qt::SortOrder order)
+{
+ Q_D(QTableView);
+ d->horizontalHeader->setSortIndicator(column, order);
+ sortByColumn(column);
+}
+
+/*!
+ \internal
+*/
+void QTableView::verticalScrollbarAction(int action)
+{
+ QAbstractItemView::verticalScrollbarAction(action);
+}
+
+/*!
+ \internal
+*/
+void QTableView::horizontalScrollbarAction(int action)
+{
+ QAbstractItemView::horizontalScrollbarAction(action);
+}
+
+/*!
+ \reimp
+*/
+bool QTableView::isIndexHidden(const QModelIndex &index) const
+{
+ Q_D(const QTableView);
+ Q_ASSERT(d->isIndexValid(index));
+ if (isRowHidden(index.row()) || isColumnHidden(index.column()))
+ return true;
+ if (d->hasSpans()) {
+ QSpanCollection::Span span = d->span(index.row(), index.column());
+ return !((span.top() == index.row()) && (span.left() == index.column()));
+ }
+ return false;
+}
+
+/*!
+ \fn void QTableView::setSpan(int row, int column, int rowSpanCount, int columnSpanCount)
+ \since 4.2
+
+ Sets the span of the table element at (\a row, \a column) to the number of
+ rows and columns specified by (\a rowSpanCount, \a columnSpanCount).
+
+ \sa rowSpan(), columnSpan()
+*/
+void QTableView::setSpan(int row, int column, int rowSpan, int columnSpan)
+{
+ Q_D(QTableView);
+ if (row < 0 || column < 0 || rowSpan < 0 || columnSpan < 0)
+ return;
+ d->setSpan(row, column, rowSpan, columnSpan);
+ d->viewport->update();
+}
+
+/*!
+ \since 4.2
+
+ Returns the row span of the table element at (\a row, \a column).
+ The default is 1.
+
+ \sa setSpan(), columnSpan()
+*/
+int QTableView::rowSpan(int row, int column) const
+{
+ Q_D(const QTableView);
+ return d->rowSpan(row, column);
+}
+
+/*!
+ \since 4.2
+
+ Returns the column span of the table element at (\a row, \a
+ column). The default is 1.
+
+ \sa setSpan(), rowSpan()
+*/
+int QTableView::columnSpan(int row, int column) const
+{
+ Q_D(const QTableView);
+ return d->columnSpan(row, column);
+}
+
+/*!
+ \since 4.4
+
+ Removes all row and column spans in the table view.
+
+ \sa setSpan()
+*/
+
+void QTableView::clearSpans()
+{
+ Q_D(QTableView);
+ d->spans.clear();
+ d->viewport->update();
+}
+
+void QTableViewPrivate::_q_selectRow(int row)
+{
+ selectRow(row, false);
+}
+
+void QTableViewPrivate::_q_selectColumn(int column)
+{
+ selectColumn(column, false);
+}
+
+void QTableViewPrivate::selectRow(int row, bool anchor)
+{
+ Q_Q(QTableView);
+
+ if (q->selectionBehavior() == QTableView::SelectColumns
+ || (q->selectionMode() == QTableView::SingleSelection
+ && q->selectionBehavior() == QTableView::SelectItems))
+ return;
+
+ if (row >= 0 && row < model->rowCount(root)) {
+ int column = horizontalHeader->logicalIndexAt(q->isRightToLeft() ? viewport->width() : 0);
+ QModelIndex index = model->index(row, column, root);
+ QItemSelectionModel::SelectionFlags command = q->selectionCommand(index);
+ selectionModel->setCurrentIndex(index, QItemSelectionModel::NoUpdate);
+ if ((anchor && !(command & QItemSelectionModel::Current))
+ || (q->selectionMode() == QTableView::SingleSelection))
+ rowSectionAnchor = row;
+
+ if (q->selectionMode() != QTableView::SingleSelection
+ && command.testFlag(QItemSelectionModel::Toggle)) {
+ if (anchor)
+ ctrlDragSelectionFlag = verticalHeader->selectionModel()->selectedRows().contains(index)
+ ? QItemSelectionModel::Deselect : QItemSelectionModel::Select;
+ command &= ~QItemSelectionModel::Toggle;
+ command |= ctrlDragSelectionFlag;
+ if (!anchor)
+ command |= QItemSelectionModel::Current;
+ }
+
+ QModelIndex tl = model->index(qMin(rowSectionAnchor, row), 0, root);
+ QModelIndex br = model->index(qMax(rowSectionAnchor, row), model->columnCount(root) - 1, root);
+ if (verticalHeader->sectionsMoved() && tl.row() != br.row())
+ q->setSelection(q->visualRect(tl)|q->visualRect(br), command);
+ else
+ selectionModel->select(QItemSelection(tl, br), command);
+ }
+}
+
+void QTableViewPrivate::selectColumn(int column, bool anchor)
+{
+ Q_Q(QTableView);
+
+ if (q->selectionBehavior() == QTableView::SelectRows
+ || (q->selectionMode() == QTableView::SingleSelection
+ && q->selectionBehavior() == QTableView::SelectItems))
+ return;
+
+ if (column >= 0 && column < model->columnCount(root)) {
+ int row = verticalHeader->logicalIndexAt(0);
+ QModelIndex index = model->index(row, column, root);
+ QItemSelectionModel::SelectionFlags command = q->selectionCommand(index);
+ selectionModel->setCurrentIndex(index, QItemSelectionModel::NoUpdate);
+ if ((anchor && !(command & QItemSelectionModel::Current))
+ || (q->selectionMode() == QTableView::SingleSelection))
+ columnSectionAnchor = column;
+
+ if (q->selectionMode() != QTableView::SingleSelection
+ && command.testFlag(QItemSelectionModel::Toggle)) {
+ if (anchor)
+ ctrlDragSelectionFlag = horizontalHeader->selectionModel()->selectedColumns().contains(index)
+ ? QItemSelectionModel::Deselect : QItemSelectionModel::Select;
+ command &= ~QItemSelectionModel::Toggle;
+ command |= ctrlDragSelectionFlag;
+ if (!anchor)
+ command |= QItemSelectionModel::Current;
+ }
+
+ QModelIndex tl = model->index(0, qMin(columnSectionAnchor, column), root);
+ QModelIndex br = model->index(model->rowCount(root) - 1,
+ qMax(columnSectionAnchor, column), root);
+ if (horizontalHeader->sectionsMoved() && tl.column() != br.column())
+ q->setSelection(q->visualRect(tl)|q->visualRect(br), command);
+ else
+ selectionModel->select(QItemSelection(tl, br), command);
+ }
+}
+
+/*!
+ \reimp
+ */
+void QTableView::currentChanged(const QModelIndex ¤t, const QModelIndex &previous)
+{
+#ifndef QT_NO_ACCESSIBILITY
+ if (QAccessible::isActive()) {
+ if (current.isValid()) {
+ int entry = visualIndex(current) + 1;
+ if (horizontalHeader())
+ ++entry;
+ QAccessible::updateAccessibility(viewport(), entry, QAccessible::Focus);
+ }
+ }
+#endif
+ QAbstractItemView::currentChanged(current, previous);
+}
+
+/*!
+ \reimp
+ */
+void QTableView::selectionChanged(const QItemSelection &selected,
+ const QItemSelection &deselected)
+{
+#ifndef QT_NO_ACCESSIBILITY
+ if (QAccessible::isActive()) {
+ // ### does not work properly for selection ranges.
+ QModelIndex sel = selected.indexes().value(0);
+ if (sel.isValid()) {
+ int entry = visualIndex(sel);
+ if (horizontalHeader())
+ ++entry;
+ QAccessible::updateAccessibility(viewport(), entry, QAccessible::Selection);
+ }
+ QModelIndex desel = deselected.indexes().value(0);
+ if (desel.isValid()) {
+ int entry = visualIndex(sel);
+ if (horizontalHeader())
+ ++entry;
+ QAccessible::updateAccessibility(viewport(), entry, QAccessible::SelectionRemove);
+ }
+ }
+#endif
+ QAbstractItemView::selectionChanged(selected, deselected);
+}
+
+int QTableView::visualIndex(const QModelIndex &index) const
+{
+ return index.row();
+}
+
+QT_END_NAMESPACE
+
+#include "qtableview.moc"
+
+#include "moc_qtableview.cpp"
+
+#endif // QT_NO_TABLEVIEW