X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/994095076cccdb703b2bb285d4118bd9c654fd93..148282e2d856b47ceb191eeef4c834118c8cdffd:/src/dolphindetailsview.cpp diff --git a/src/dolphindetailsview.cpp b/src/dolphindetailsview.cpp index 08eef4307..32deb873b 100644 --- a/src/dolphindetailsview.cpp +++ b/src/dolphindetailsview.cpp @@ -1,6 +1,6 @@ /*************************************************************************** - * Copyright (C) 2006 by Peter Penz * - * peter.penz@gmx.at * + * Copyright (C) 2006 by Peter Penz (peter.penz@gmx.at) * + * Copyright (C) 2008 by Simon St. James (kdedevel@etotheipiplusone.com) * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * @@ -25,6 +25,7 @@ #include "dolphinfileitemdelegate.h" #include "dolphinsettings.h" #include "dolphinsortfilterproxymodel.h" +#include "dolphinviewautoscroller.h" #include "draganddrophelper.h" #include "selectionmanager.h" #include "viewproperties.h" @@ -47,17 +48,16 @@ DolphinDetailsView::DolphinDetailsView(QWidget* parent, DolphinController* controller) : QTreeView(parent), - m_autoResize(true), + m_autoResize(true), m_expandingTogglePressed(false), m_keyPressed(false), m_useDefaultIndexAt(true), + m_ignoreScrollTo(false), m_controller(controller), m_selectionManager(0), m_font(), m_decorationSize(), - m_showElasticBand(false), - m_elasticBandOrigin(), - m_elasticBandDestination() + m_band() { const DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings(); Q_ASSERT(settings != 0); @@ -76,6 +76,7 @@ DolphinDetailsView::DolphinDetailsView(QWidget* parent, DolphinController* contr setEditTriggers(QAbstractItemView::NoEditTriggers); setMouseTracking(true); + new DolphinViewAutoScroller(this); const ViewProperties props(controller->url()); setSortIndicatorSection(props.sorting()); @@ -97,10 +98,8 @@ DolphinDetailsView::DolphinDetailsView(QWidget* parent, DolphinController* contr connect(parent, SIGNAL(sortOrderChanged(Qt::SortOrder)), this, SLOT(setSortIndicatorOrder(Qt::SortOrder))); - // TODO: Connecting to the signal 'activated()' is not possible, as kstyle - // does not forward the single vs. doubleclick to it yet (KDE 4.1?). Hence it is - // necessary connecting the signal 'singleClick()' or 'doubleClick' and to handle the - // RETURN-key in keyPressEvent(). + connect(this, SIGNAL(clicked(const QModelIndex&)), + controller, SLOT(requestTab(const QModelIndex&))); if (KGlobalSettings::singleClick()) { connect(this, SIGNAL(clicked(const QModelIndex&)), controller, SLOT(triggerItem(const QModelIndex&))); @@ -215,6 +214,7 @@ void DolphinDetailsView::mousePressEvent(QMouseEvent* event) setState(QAbstractItemView::DraggingState); } else { m_expandingTogglePressed = true; + kDebug() << "m_expandingTogglePressed " << m_expandingTogglePressed; } } @@ -229,38 +229,37 @@ void DolphinDetailsView::mousePressEvent(QMouseEvent* event) clearSelection(); } - // restore the current index, other columns are handled as viewport area + // restore the current index, other columns are handled as viewport area. + // setCurrentIndex(...) implicitly calls scrollTo(...), which we want to ignore. + m_ignoreScrollTo = true; selectionModel()->setCurrentIndex(current, QItemSelectionModel::Current); - } + m_ignoreScrollTo = false; - if ((event->button() == Qt::LeftButton) && !m_expandingTogglePressed) { - m_showElasticBand = true; - const QPoint pos = contentsPos(); - const QPoint scrollPos(horizontalScrollBar()->value(), verticalScrollBar()->value()); - m_elasticBandOrigin = event->pos() + pos + scrollPos; - m_elasticBandDestination = m_elasticBandOrigin; - } + if ((event->button() == Qt::LeftButton) && !m_expandingTogglePressed) { + // Inform Qt about what we are doing - otherwise it starts dragging items around! + setState(DragSelectingState); + m_band.show = true; + // Incremental update data will not be useful - start from scratch. + m_band.ignoreOldInfo = true; + const QPoint pos = contentsPos(); + const QPoint scrollPos(horizontalScrollBar()->value(), verticalScrollBar()->value()); + m_band.origin = event->pos() + pos + scrollPos; + m_band.destination = m_band.origin; + m_band.originalSelection = selectionModel()->selection(); + } + } } void DolphinDetailsView::mouseMoveEvent(QMouseEvent* event) { - if (m_showElasticBand) { + if (m_band.show) { const QPoint mousePos = event->pos(); const QModelIndex index = indexAt(mousePos); if (!index.isValid()) { // the destination of the selection rectangle is above the viewport. In this // case QTreeView does no selection at all, which is not the wanted behavior // in Dolphin -> select all items within the elastic band rectangle - clearSelection(); - setState(DragSelectingState); - - const int nameColumnWidth = header()->sectionSize(DolphinModel::Name); - QRect selRect = elasticBandRect(); - const QRect nameColumnsRect(0, 0, nameColumnWidth, viewport()->height()); - selRect = nameColumnsRect.intersected(selRect); - - setSelection(selRect, QItemSelectionModel::Select); - + updateElasticBandSelection(); } // TODO: enable QTreeView::mouseMoveEvent(event) again, as soon @@ -299,28 +298,28 @@ void DolphinDetailsView::mouseReleaseEvent(QMouseEvent* event) } m_expandingTogglePressed = false; - if (m_showElasticBand) { + if (m_band.show) { setState(NoState); updateElasticBand(); - m_showElasticBand = false; + m_band.show = false; } } void DolphinDetailsView::startDrag(Qt::DropActions supportedActions) { - DragAndDropHelper::startDrag(this, supportedActions); - m_showElasticBand = false; + DragAndDropHelper::instance().startDrag(this, supportedActions, m_controller); + m_band.show = false; } void DolphinDetailsView::dragEnterEvent(QDragEnterEvent* event) { - if (event->mimeData()->hasUrls()) { + if (DragAndDropHelper::instance().isMimeDataSupported(event->mimeData())) { event->acceptProposedAction(); } - if (m_showElasticBand) { + if (m_band.show) { updateElasticBand(); - m_showElasticBand = false; + m_band.show = false; } } @@ -347,7 +346,7 @@ void DolphinDetailsView::dragMoveEvent(QDragMoveEvent* event) setDirtyRegion(m_dropRect); } - if (event->mimeData()->hasUrls()) { + if (DragAndDropHelper::instance().isMimeDataSupported(event->mimeData())) { // accept url drops, independently from the destination item event->acceptProposedAction(); } @@ -367,7 +366,7 @@ void DolphinDetailsView::dropEvent(QDropEvent* event) void DolphinDetailsView::paintEvent(QPaintEvent* event) { QTreeView::paintEvent(event); - if (m_showElasticBand) { + if (m_band.show) { // The following code has been taken from QListView // and adapted to DolphinDetailsView. // (C) 1992-2007 Trolltech ASA @@ -403,10 +402,10 @@ void DolphinDetailsView::keyReleaseEvent(QKeyEvent* event) void DolphinDetailsView::resizeEvent(QResizeEvent* event) { + QTreeView::resizeEvent(event); if (m_autoResize) { resizeColumns(); } - QTreeView::resizeEvent(event); } void DolphinDetailsView::wheelEvent(QWheelEvent* event) @@ -460,38 +459,24 @@ void DolphinDetailsView::setSelection(const QRect &rect, QItemSelectionModel::Se { // We must override setSelection() as Qt calls it internally and when this happens // we must ensure that the default indexAt() is used. - if (!m_showElasticBand) { + if (!m_band.show) { m_useDefaultIndexAt = true; QTreeView::setSelection(rect, command); m_useDefaultIndexAt = false; } else { - // Select the items contained within the elastic band. - - // TODO - would this still work if the columns could be re-ordered - // (which I want to implement eventually :))? - - // Very naive implementation - clears all selected, then walks a tree, - // selecting all items whose nameColumnRect(...) intersects rect. - - // Choose a sensible startIndex - a parentless index in the - // name column, as close to the top of the rect as we - // can find. - QRect normalisedRect = rect.normalized(); - QModelIndex startIndex = QTreeView::indexAt(normalisedRect.topLeft()); - if (startIndex.isValid()) { - while (startIndex.parent().isValid()) { - startIndex = startIndex.parent(); - } - } else { - // just pick the topmost row for safety - model()->index(0, KDirModel::Name); - } - startIndex = model()->index(startIndex.row(), KDirModel::Name); - clearSelection(); - setSelectionRecursive(startIndex, normalisedRect, command); + + // Use our own elastic band selection algorithm + updateElasticBandSelection(); } } +void DolphinDetailsView::scrollTo(const QModelIndex & index, ScrollHint hint) +{ + if (m_ignoreScrollTo) + return; + QTreeView::scrollTo(index, hint); +} + void DolphinDetailsView::setSortIndicatorSection(DolphinView::Sorting sorting) { QHeaderView* headerView = header(); @@ -525,10 +510,17 @@ void DolphinDetailsView::slotEntered(const QModelIndex& index) void DolphinDetailsView::updateElasticBand() { - if (m_showElasticBand) { + if (m_band.show) { QRect dirtyRegion(elasticBandRect()); const QPoint scrollPos(horizontalScrollBar()->value(), verticalScrollBar()->value()); - m_elasticBandDestination = viewport()->mapFromGlobal(QCursor::pos()) + scrollPos; + 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); } @@ -539,8 +531,8 @@ QRect DolphinDetailsView::elasticBandRect() const const QPoint pos(contentsPos()); const QPoint scrollPos(horizontalScrollBar()->value(), verticalScrollBar()->value()); - const QPoint topLeft = m_elasticBandOrigin - pos - scrollPos; - const QPoint bottomRight = m_elasticBandDestination - pos - scrollPos; + const QPoint topLeft = m_band.origin - pos - scrollPos; + const QPoint bottomRight = m_band.destination - pos - scrollPos; return QRect(topLeft, bottomRight).normalized(); } @@ -599,6 +591,7 @@ void DolphinDetailsView::configureColumns(const QPoint& pos) m_controller->indicateAdditionalInfoChange(list); setColumnHidden(columnIndex, !show); + resizeColumns(); } } @@ -621,7 +614,10 @@ void DolphinDetailsView::slotHeaderSectionResized(int logicalIndex, int oldSize, Q_UNUSED(logicalIndex); Q_UNUSED(oldSize); Q_UNUSED(newSize); - if (QApplication::mouseButtons() & Qt::LeftButton) { + // 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, the following approach is used: + if ((QApplication::mouseButtons() & Qt::LeftButton) && isVisible()) { disableAutoResizing(); } } @@ -651,6 +647,189 @@ void DolphinDetailsView::updateFont() } } +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); + } + } + + // next item + lastIndex = currIndex; + currIndex = nextIndex; + } while (!allItemsInBoundDone); + + selectionModel()->select(itemsToToggle, QItemSelectionModel::Toggle); + + m_band.lastSelectionOrigin = m_band.origin; + m_band.lastSelectionDestination = m_band.destination; + m_band.ignoreOldInfo = false; +} + void DolphinDetailsView::updateDecorationSize(bool showPreview) { DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings(); @@ -741,49 +920,25 @@ QRect DolphinDetailsView::nameColumnRect(const QModelIndex& index) const QRect rect = visualRect(index); const KFileItem item = m_controller->itemForIndex(index); if (!item.isNull()) { - const int width = DolphinFileItemDelegate::nameColumnWidth(item.name(), viewOptions()); + const int width = DolphinFileItemDelegate::nameColumnWidth(item.text(), viewOptions()); rect.setWidth(width); } return rect; } -void DolphinDetailsView::setSelectionRecursive(const QModelIndex& startIndex, - const QRect& rect, - QItemSelectionModel::SelectionFlags command) +DolphinDetailsView::ElasticBand::ElasticBand() : + show(false), + origin(), + destination(), + lastSelectionOrigin(), + lastSelectionDestination(), + ignoreOldInfo(true), + outsideNearestLeftEdge(0), + outsideNearestRightEdge(0), + insideNearestLeftEdge(0), + insideNearestRightEdge(0) { - if (!startIndex.isValid()) { - return; - } - - // rect is assumed to be in viewport coordinates and normalized. - // Move down through the siblings of startIndex, exploring the children - // of any expanded nodes. - Q_ASSERT(rect.width() >= 0 && rect.height() >= 0); - QModelIndex currIndex = startIndex; - do { - const QModelIndex belowIndex = indexBelow(currIndex); - if (isExpanded(currIndex)) { - // If belowIndex exists and is above the top of rect, then we need not explore - // the children of currIndex as they will always be above "below". Otherwise, - // explore the children. - if (!belowIndex.isValid() || visualRect(belowIndex).bottom() >= rect.top()) { - setSelectionRecursive(currIndex.child(0, currIndex.column()), rect, command); - } - } - - QRect itemContentRect = nameColumnRect(currIndex); - if (itemContentRect.top() > rect.bottom()) { - // All remaining items will be below itemContentRect, so we may cull. - return; - } - - if (itemContentRect.intersects(rect)) { - selectionModel()->select(currIndex, QItemSelectionModel::Select); - } - - currIndex = belowIndex; - } while (currIndex.isValid()); } #include "dolphindetailsview.moc"