+ }
+}
+
+void DolphinDetailsView::dropEvent(QDropEvent* event)
+{
+ const QModelIndex index = indexAt(event->pos());
+ KFileItem item;
+ if (index.isValid() && (index.column() == DolphinModel::Name)) {
+ item = m_controller->itemForIndex(index);
+ }
+ m_controller->indicateDroppedUrls(item, m_controller->url(), event);
+ QTreeView::dropEvent(event);
+}
+
+void DolphinDetailsView::paintEvent(QPaintEvent* event)
+{
+ QTreeView::paintEvent(event);
+ if (m_band.show) {
+ // The following code has been taken from QListView
+ // and adapted to DolphinDetailsView.
+ // (C) 1992-2007 Trolltech ASA
+ QStyleOptionRubberBand opt;
+ opt.initFrom(this);
+ opt.shape = QRubberBand::Rectangle;
+ opt.opaque = false;
+ opt.rect = elasticBandRect();
+
+ QPainter painter(viewport());
+ painter.save();
+ style()->drawControl(QStyle::CE_RubberBand, &opt, &painter);
+ painter.restore();
+ }
+}
+
+void DolphinDetailsView::keyPressEvent(QKeyEvent* event)
+{
+ // If the Control modifier is pressed, a multiple selection
+ // is done and DolphinDetailsView::currentChanged() may not
+ // not change the selection in a custom way.
+ m_keyPressed = !(event->modifiers() & Qt::ControlModifier);
+
+ QTreeView::keyPressEvent(event);
+ m_controller->handleKeyPressEvent(event);
+}
+
+void DolphinDetailsView::keyReleaseEvent(QKeyEvent* event)
+{
+ QTreeView::keyReleaseEvent(event);
+ m_keyPressed = false;
+}
+
+void DolphinDetailsView::resizeEvent(QResizeEvent* event)
+{
+ QTreeView::resizeEvent(event);
+ if (m_autoResize) {
+ resizeColumns();
+ }
+}
+
+void DolphinDetailsView::wheelEvent(QWheelEvent* event)
+{
+ if (m_selectionManager != 0) {
+ m_selectionManager->reset();
+ }
+
+ // let Ctrl+wheel events propagate to the DolphinView for icon zooming
+ if (event->modifiers() & Qt::ControlModifier) {
+ event->ignore();
+ return;
+ }
+
+ const int height = m_decorationSize.height();
+ const int step = (height >= KIconLoader::SizeHuge) ? height / 10 : (KIconLoader::SizeHuge - height) / 2;
+ verticalScrollBar()->setSingleStep(step);
+ QTreeView::wheelEvent(event);
+}
+
+void DolphinDetailsView::currentChanged(const QModelIndex& current, const QModelIndex& previous)
+{
+ QTreeView::currentChanged(current, previous);
+ if (current.isValid() && !m_autoScroller->isActive()) {
+ scrollTo(current);
+ }
+
+ // Stay consistent with QListView: When changing the current index by key presses,
+ // also change the selection.
+ if (m_keyPressed) {
+ selectionModel()->select(current, QItemSelectionModel::ClearAndSelect);
+ }
+}
+
+bool DolphinDetailsView::eventFilter(QObject* watched, QEvent* event)
+{
+ if ((watched == viewport()) && (event->type() == QEvent::Leave)) {
+ // if the mouse is above an item and moved very fast outside the widget,
+ // no viewportEntered() signal might be emitted although the mouse has been moved
+ // above the viewport
+ m_controller->emitViewportEntered();
+ }
+
+ return QTreeView::eventFilter(watched, event);
+}
+
+QModelIndex DolphinDetailsView::indexAt(const QPoint& point) const
+{
+ // the blank portion of the name column counts as empty space
+ const QModelIndex index = QTreeView::indexAt(point);
+ const bool isAboveEmptySpace = !m_useDefaultIndexAt &&
+ (index.column() == KDirModel::Name) && !nameColumnRect(index).contains(point);
+ return isAboveEmptySpace ? QModelIndex() : index;
+}
+
+void DolphinDetailsView::setSelection(const QRect& rect, QItemSelectionModel::SelectionFlags command)
+{
+ // We must override setSelection() as Qt calls it internally and when this happens
+ // we must ensure that the default indexAt() is used.
+ if (!m_band.show) {
+ m_useDefaultIndexAt = true;
+ QTreeView::setSelection(rect, command);
+ m_useDefaultIndexAt = false;
+ } else {
+ // Use our own elastic band selection algorithm
+ updateElasticBandSelection();
+ }
+}
+
+void DolphinDetailsView::scrollTo(const QModelIndex & index, ScrollHint hint)
+{
+ if (!m_ignoreScrollTo) {
+ QTreeView::scrollTo(index, hint);
+ }
+}
+
+void DolphinDetailsView::setSortIndicatorSection(DolphinView::Sorting sorting)
+{
+ header()->setSortIndicator(sorting, header()->sortIndicatorOrder());
+}
+
+void DolphinDetailsView::setSortIndicatorOrder(Qt::SortOrder sortOrder)
+{
+ header()->setSortIndicator(header()->sortIndicatorSection(), sortOrder);
+}
+
+void DolphinDetailsView::synchronizeSortingState(int column)
+{
+ // The sorting has already been changed in QTreeView if this slot is
+ // invoked, but Dolphin is not informed about this.
+ DolphinView::Sorting sorting = DolphinSortFilterProxyModel::sortingForColumn(column);
+ const Qt::SortOrder sortOrder = header()->sortIndicatorOrder();
+ m_controller->indicateSortingChange(sorting);
+ m_controller->indicateSortOrderChange(sortOrder);
+}
+
+void DolphinDetailsView::slotEntered(const QModelIndex& index)
+{
+ if (index.column() == DolphinModel::Name) {
+ m_controller->emitItemEntered(index);
+ } else {
+ m_controller->emitViewportEntered();
+ }
+}
+
+void DolphinDetailsView::updateElasticBand()
+{
+ if (m_band.show) {
+ QRect dirtyRegion(elasticBandRect());
+ const QPoint scrollPos(horizontalScrollBar()->value(), verticalScrollBar()->value());
+ m_band.destination = viewport()->mapFromGlobal(QCursor::pos()) + scrollPos;
+ // Going above the (logical) top-left of the view causes complications during selection;
+ // we may as well prevent it.
+ if (m_band.destination.y() < 0) {
+ m_band.destination.setY(0);
+ }
+ if (m_band.destination.x() < 0) {
+ m_band.destination.setX(0);
+ }
+ dirtyRegion = dirtyRegion.united(elasticBandRect());
+ setDirtyRegion(dirtyRegion);
+ }
+}
+
+QRect DolphinDetailsView::elasticBandRect() const
+{
+ const QPoint scrollPos(horizontalScrollBar()->value(), verticalScrollBar()->value());
+
+ const QPoint topLeft = m_band.origin - scrollPos;
+ const QPoint bottomRight = m_band.destination - scrollPos;
+ return QRect(topLeft, bottomRight).normalized();
+}
+
+void DolphinDetailsView::setZoomLevel(int level)
+{
+ const int size = ZoomLevelInfo::iconSizeForZoomLevel(level);
+ DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
+
+ const bool showPreview = m_controller->dolphinView()->showPreview();
+ if (showPreview) {
+ settings->setPreviewSize(size);
+ } else {
+ settings->setIconSize(size);
+ }
+
+ updateDecorationSize(showPreview);
+}
+
+
+void DolphinDetailsView::slotShowPreviewChanged()
+{
+ const DolphinView* view = m_controller->dolphinView();
+ updateDecorationSize(view->showPreview());
+}
+
+void DolphinDetailsView::configureSettings(const QPoint& pos)
+{
+ KMenu popup(this);
+ popup.addTitle(i18nc("@title:menu", "Columns"));
+
+ // add checkbox items for each column
+ QHeaderView* headerView = header();
+ for (int i = DolphinModel::Size; i <= DolphinModel::Type; ++i) {
+ const int logicalIndex = headerView->logicalIndex(i);
+ const QString text = model()->headerData(i, Qt::Horizontal).toString();
+ QAction* action = popup.addAction(text);
+ action->setCheckable(true);
+ action->setChecked(!headerView->isSectionHidden(logicalIndex));
+ action->setData(i);
+ }
+ popup.addSeparator();
+
+ QAction* activatedAction = popup.exec(header()->mapToGlobal(pos));
+ if (activatedAction != 0) {
+ const bool show = activatedAction->isChecked();
+ const int columnIndex = activatedAction->data().toInt();
+
+ KFileItemDelegate::InformationList list = m_controller->dolphinView()->additionalInfo();
+ const KFileItemDelegate::Information info = infoForColumn(columnIndex);
+ if (show) {
+ Q_ASSERT(!list.contains(info));
+ list.append(info);
+ } else {
+ Q_ASSERT(list.contains(info));
+ const int index = list.indexOf(info);
+ list.removeAt(index);
+ }
+
+ m_controller->indicateAdditionalInfoChange(list);
+ setColumnHidden(columnIndex, !show);
+ resizeColumns();
+ }
+}
+
+void DolphinDetailsView::updateColumnVisibility()
+{
+ const KFileItemDelegate::InformationList list = m_controller->dolphinView()->additionalInfo();
+ for (int i = DolphinModel::Size; i <= DolphinModel::Type; ++i) {
+ const KFileItemDelegate::Information info = infoForColumn(i);
+ const bool hide = !list.contains(info);
+ if (isColumnHidden(i) != hide) {
+ setColumnHidden(i, hide);
+ }
+ }
+
+ resizeColumns();
+}
+
+void DolphinDetailsView::slotHeaderSectionResized(int logicalIndex, int oldSize, int newSize)
+{
+ Q_UNUSED(logicalIndex);
+ Q_UNUSED(oldSize);
+ Q_UNUSED(newSize);
+ // If the user changes the size of the headers, the autoresize feature should be
+ // turned off. As there is no dedicated interface to find out whether the header
+ // section has been resized by the user or by a resize event, another approach is used.
+ // Attention: Take care when changing the if-condition to verify that there is no
+ // regression in combination with bug 178630 (see fix in comment #8).
+ if ((QApplication::mouseButtons() & Qt::LeftButton) && header()->underMouse()) {
+ disableAutoResizing();
+ }
+}
+
+void DolphinDetailsView::slotActivationChanged(bool active)
+{
+ setAlternatingRowColors(active);
+}
+
+void DolphinDetailsView::disableAutoResizing()
+{
+ m_autoResize = false;
+}
+
+void DolphinDetailsView::requestActivation()
+{
+ m_controller->requestActivation();
+}
+
+void DolphinDetailsView::slotGlobalSettingsChanged(int category)
+{
+ Q_UNUSED(category);
+
+ const DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
+ Q_ASSERT(settings != 0);
+ if (settings->useSystemFont()) {
+ m_font = KGlobalSettings::generalFont();
+ }
+ //Disconnect then reconnect, since the settings have been changed, the connection requirements may have also.
+ disconnect(this, SIGNAL(clicked(QModelIndex)), m_controller, SLOT(triggerItem(QModelIndex)));
+ disconnect(this, SIGNAL(doubleClicked(QModelIndex)), m_controller, SLOT(triggerItem(QModelIndex)));
+ if (KGlobalSettings::singleClick()) {
+ connect(this, SIGNAL(clicked(QModelIndex)), m_controller, SLOT(triggerItem(QModelIndex)));
+ } else {
+ connect(this, SIGNAL(doubleClicked(QModelIndex)), m_controller, SLOT(triggerItem(QModelIndex)));
+ }
+}
+
+void DolphinDetailsView::updateElasticBandSelection()
+{
+ if (!m_band.show) {
+ return;
+ }
+
+ // Ensure the elastic band itself is up-to-date, in
+ // case we are being called due to e.g. a drag event.
+ updateElasticBand();
+
+ // Clip horizontally to the name column, as some filenames will be
+ // longer than the column. We don't clip vertically as origin
+ // may be above or below the current viewport area.
+ const int nameColumnX = header()->sectionPosition(DolphinModel::Name);
+ const int nameColumnWidth = header()->sectionSize(DolphinModel::Name);
+ QRect selRect = elasticBandRect().normalized();
+ QRect nameColumnArea(nameColumnX, selRect.y(), nameColumnWidth, selRect.height());
+ selRect = nameColumnArea.intersect(selRect).normalized();
+ // Get the last elastic band rectangle, expressed in viewpoint coordinates.
+ const QPoint scrollPos(horizontalScrollBar()->value(), verticalScrollBar()->value());
+ QRect oldSelRect = QRect(m_band.lastSelectionOrigin - scrollPos, m_band.lastSelectionDestination - scrollPos).normalized();
+
+ if (selRect.isNull()) {
+ selectionModel()->select(m_band.originalSelection, QItemSelectionModel::ClearAndSelect);
+ m_band.ignoreOldInfo = true;
+ return;
+ }
+
+ if (!m_band.ignoreOldInfo) {
+ // Do some quick checks to see if we can rule out the need to
+ // update the selection.
+ Q_ASSERT(uniformRowHeights());
+ QModelIndex dummyIndex = model()->index(0, 0);
+ if (!dummyIndex.isValid()) {
+ // No items in the model presumably.
+ return;
+ }
+
+ // If the elastic band does not cover the same rows as before, we'll
+ // need to re-check, and also invalidate the old item distances.
+ const int rowHeight = QTreeView::rowHeight(dummyIndex);
+ const bool coveringSameRows =
+ (selRect.top() / rowHeight == oldSelRect.top() / rowHeight) &&
+ (selRect.bottom() / rowHeight == oldSelRect.bottom() / rowHeight);
+ if (coveringSameRows) {
+ // Covering the same rows, but have we moved far enough horizontally
+ // that we might have (de)selected some other items?
+ const bool itemSelectionChanged =
+ ((selRect.left() > oldSelRect.left()) &&
+ (selRect.left() > m_band.insideNearestLeftEdge)) ||
+ ((selRect.left() < oldSelRect.left()) &&
+ (selRect.left() <= m_band.outsideNearestLeftEdge)) ||
+ ((selRect.right() < oldSelRect.right()) &&
+ (selRect.left() >= m_band.insideNearestRightEdge)) ||
+ ((selRect.right() > oldSelRect.right()) &&
+ (selRect.right() >= m_band.outsideNearestRightEdge));
+
+ if (!itemSelectionChanged) {
+ return;
+ }
+ }
+ }
+ else {
+ // This is the only piece of optimization data that needs to be explicitly
+ // discarded.
+ m_band.lastSelectionOrigin = QPoint();
+ m_band.lastSelectionDestination = QPoint();
+ oldSelRect = selRect;
+ }
+
+ // Do the selection from scratch. Force a update of the horizontal distances info.
+ m_band.insideNearestLeftEdge = nameColumnX + nameColumnWidth + 1;
+ m_band.insideNearestRightEdge = nameColumnX - 1;
+ m_band.outsideNearestLeftEdge = nameColumnX - 1;
+ m_band.outsideNearestRightEdge = nameColumnX + nameColumnWidth + 1;
+
+ // Include the old selection rect as well, so we can deselect
+ // items that were inside it but not in the new selRect.
+ const QRect boundingRect = selRect.united(oldSelRect).normalized();
+ if (boundingRect.isNull()) {
+ return;
+ }
+
+ // Get the index of the item in this row in the name column.
+ // TODO - would this still work if the columns could be re-ordered?
+ QModelIndex startIndex = QTreeView::indexAt(boundingRect.topLeft());
+ if (startIndex.parent().isValid()) {
+ startIndex = startIndex.parent().child(startIndex.row(), KDirModel::Name);
+ } else {
+ startIndex = model()->index(startIndex.row(), KDirModel::Name);
+ }
+ if (!startIndex.isValid()) {
+ selectionModel()->select(m_band.originalSelection, QItemSelectionModel::ClearAndSelect);
+ m_band.ignoreOldInfo = true;
+ return;
+ }
+
+ // Go through all indexes between the top and bottom of boundingRect, and
+ // update the selection.
+ const int verticalCutoff = boundingRect.bottom();
+ QModelIndex currIndex = startIndex;
+ QModelIndex lastIndex;
+ bool allItemsInBoundDone = false;
+
+ // Calling selectionModel()->select(...) for each item that needs to be
+ // toggled is slow as each call emits selectionChanged(...) so store them
+ // and do the selection toggle in one batch.
+ QItemSelection itemsToToggle;
+ // QItemSelection's deal with continuous ranges of indexes better than
+ // single indexes, so try to portion items that need to be toggled into ranges.
+ bool formingToggleIndexRange = false;
+ QModelIndex toggleIndexRangeBegin = QModelIndex();
+
+ do {
+ QRect currIndexRect = nameColumnRect(currIndex);
+
+ // Update some optimization info as we go.
+ const int cr = currIndexRect.right();
+ const int cl = currIndexRect.left();
+ const int sl = selRect.left();
+ const int sr = selRect.right();
+ // "The right edge of the name is outside of the rect but nearer than m_outsideNearestLeft", etc
+ if ((cr < sl && cr > m_band.outsideNearestLeftEdge)) {
+ m_band.outsideNearestLeftEdge = cr;
+ }
+ if ((cl > sr && cl < m_band.outsideNearestRightEdge)) {
+ m_band.outsideNearestRightEdge = cl;
+ }
+ if ((cl >= sl && cl <= sr && cl > m_band.insideNearestRightEdge)) {
+ m_band.insideNearestRightEdge = cl;
+ }
+ if ((cr >= sl && cr <= sr && cr < m_band.insideNearestLeftEdge)) {
+ m_band.insideNearestLeftEdge = cr;
+ }
+
+ bool currentlySelected = selectionModel()->isSelected(currIndex);
+ bool originallySelected = m_band.originalSelection.contains(currIndex);
+ bool intersectsSelectedRect = currIndexRect.intersects(selRect);
+ bool shouldBeSelected = (intersectsSelectedRect && !originallySelected) || (!intersectsSelectedRect && originallySelected);
+ bool needToToggleItem = (currentlySelected && !shouldBeSelected) || (!currentlySelected && shouldBeSelected);
+ if (needToToggleItem && !formingToggleIndexRange) {
+ toggleIndexRangeBegin = currIndex;
+ formingToggleIndexRange = true;
+ }
+
+ // NOTE: indexBelow actually walks up and down expanded trees for us.
+ QModelIndex nextIndex = indexBelow(currIndex);
+ allItemsInBoundDone = !nextIndex.isValid() || currIndexRect.top() > verticalCutoff;
+
+ const bool commitToggleIndexRange = formingToggleIndexRange &&
+ (!needToToggleItem ||
+ allItemsInBoundDone ||
+ currIndex.parent() != toggleIndexRangeBegin.parent());
+ if (commitToggleIndexRange) {
+ formingToggleIndexRange = false;
+ // If this is the last item in the bounds and it is also the beginning of a range,
+ // don't toggle lastIndex - it will already have been dealt with.
+ if (!allItemsInBoundDone || toggleIndexRangeBegin != currIndex) {
+ itemsToToggle.select(toggleIndexRangeBegin, lastIndex);
+ }
+ // Need to start a new range immediately with currIndex?
+ if (needToToggleItem) {
+ toggleIndexRangeBegin = currIndex;
+ formingToggleIndexRange = true;
+ }
+ if (allItemsInBoundDone && needToToggleItem) {
+ // Toggle the very last item in the bounds.
+ itemsToToggle.select(currIndex, currIndex);
+ }
+ }
projects / dolphin.git / blobdiff