/***************************************************************************
- * 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 *
#include "dolphinmodel.h"
#include "dolphincontroller.h"
-#include "dolphinsettings.h"
+#include "dolphinfileitemdelegate.h"
+#include "settings/dolphinsettings.h"
#include "dolphinsortfilterproxymodel.h"
+#include "dolphinviewautoscroller.h"
#include "draganddrophelper.h"
#include "selectionmanager.h"
#include "viewproperties.h"
+#include "zoomlevelinfo.h"
#include "dolphin_detailsmodesettings.h"
#include "dolphin_generalsettings.h"
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_autoScroller(0),
m_font(),
m_decorationSize(),
- m_showElasticBand(false),
- m_elasticBandOrigin(),
- m_elasticBandDestination()
+ m_band()
{
const DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
Q_ASSERT(settings != 0);
Q_ASSERT(controller != 0);
+ setLayoutDirection(Qt::LeftToRight);
setAcceptDrops(true);
setSortingEnabled(true);
setUniformRowHeights(true);
setEditTriggers(QAbstractItemView::NoEditTriggers);
setMouseTracking(true);
+ m_autoScroller = new DolphinViewAutoScroller(this);
const ViewProperties props(controller->url());
setSortIndicatorSection(props.sorting());
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&)));
- if (DolphinSettings::instance().generalSettings()->showSelectionToggle()) {
- SelectionManager* selManager = new SelectionManager(this);
- connect(selManager, SIGNAL(selectionChanged()),
- this, SLOT(requestActivation()));
- connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
- selManager, SLOT(reset()));
- }
} else {
connect(this, SIGNAL(doubleClicked(const QModelIndex&)),
controller, SLOT(triggerItem(const QModelIndex&)));
}
+
+ if (DolphinSettings::instance().generalSettings()->showSelectionToggle()) {
+ m_selectionManager = new SelectionManager(this);
+ connect(m_selectionManager, SIGNAL(selectionChanged()),
+ this, SLOT(requestActivation()));
+ connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
+ m_selectionManager, SLOT(reset()));
+ }
+
connect(this, SIGNAL(entered(const QModelIndex&)),
this, SLOT(slotEntered(const QModelIndex&)));
connect(this, SIGNAL(viewportEntered()),
controller, SLOT(emitViewportEntered()));
- connect(controller, SIGNAL(zoomIn()),
- this, SLOT(zoomIn()));
- connect(controller, SIGNAL(zoomOut()),
- this, SLOT(zoomOut()));
+ connect(controller, SIGNAL(zoomLevelChanged(int)),
+ this, SLOT(setZoomLevel(int)));
connect(controller->dolphinView(), SIGNAL(additionalInfoChanged()),
this, SLOT(updateColumnVisibility()));
+ connect(controller, SIGNAL(activationChanged(bool)),
+ this, SLOT(slotActivationChanged(bool)));
if (settings->useSystemFont()) {
m_font = KGlobalSettings::generalFont();
setVerticalScrollMode(QTreeView::ScrollPerPixel);
setHorizontalScrollMode(QTreeView::ScrollPerPixel);
- updateDecorationSize();
+ const DolphinView* view = controller->dolphinView();
+ connect(view, SIGNAL(showPreviewChanged()),
+ this, SLOT(slotShowPreviewChanged()));
+
+ updateDecorationSize(view->showPreview());
setFocus();
+ viewport()->installEventFilter(this);
connect(KGlobalSettings::self(), SIGNAL(kdisplayFontChanged()),
this, SLOT(updateFont()));
+
+ m_useDefaultIndexAt = false;
}
DolphinDetailsView::~DolphinDetailsView()
hideColumn(DolphinModel::Rating);
hideColumn(DolphinModel::Tags);
- } else if (event->type() == QEvent::UpdateRequest) {
- // a wheel movement will scroll 4 items
- if (model()->rowCount() > 0) {
- verticalScrollBar()->setSingleStep((sizeHintForRow(0) / 3) * 4);
- }
}
return QTreeView::event(event);
{
m_controller->requestActivation();
+ const QModelIndex current = currentIndex();
QTreeView::mousePressEvent(event);
+ m_expandingTogglePressed = false;
const QModelIndex index = indexAt(event->pos());
+ const bool updateState = index.isValid() &&
+ (index.column() == DolphinModel::Name) &&
+ (event->button() == Qt::LeftButton);
+ if (updateState) {
+ // TODO: See comment in DolphinIconsView::mousePressEvent(). Only update
+ // the state if no expanding/collapsing area has been hit:
+ const QRect rect = visualRect(index);
+ if (event->pos().x() >= rect.x() + indentation()) {
+ setState(QAbstractItemView::DraggingState);
+ } else {
+ m_expandingTogglePressed = true;
+ }
+ }
+
if (!index.isValid() || (index.column() != DolphinModel::Name)) {
+ // the mouse press is done somewhere outside the filename column
+ if (QApplication::mouseButtons() & Qt::MidButton) {
+ m_controller->replaceUrlByClipboard();
+ }
+
const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
if (!(modifier & Qt::ShiftModifier) && !(modifier & Qt::ControlModifier)) {
clearSelection();
}
- }
- if (event->button() == Qt::LeftButton) {
- m_showElasticBand = true;
-
- const QPoint pos(contentsPos());
- m_elasticBandOrigin = event->pos();
- m_elasticBandOrigin.setX(m_elasticBandOrigin.x() + pos.x());
- m_elasticBandOrigin.setY(m_elasticBandOrigin.y() + pos.y());
- m_elasticBandDestination = event->pos();
+ // 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) {
+ // 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 scrollPos(horizontalScrollBar()->value(), verticalScrollBar()->value());
+ m_band.origin = event->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();
-
- const int nameColumnWidth = header()->sectionSize(DolphinModel::Name);
- QRect selRect = QRect(m_elasticBandOrigin, m_elasticBandDestination).normalized();
- 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
// QTreeView::mouseMoveEvent(event);
QAbstractItemView::mouseMoveEvent(event);
}
+
+ if (m_expandingTogglePressed) {
+ // Per default QTreeView starts either a selection or a drag operation when dragging
+ // the expanding toggle button (Qt-issue - see TODO comment in DolphinIconsView::mousePressEvent()).
+ // Turn off this behavior in Dolphin to stay predictable:
+ clearSelection();
+ setState(QAbstractItemView::NoState);
+ }
}
void DolphinDetailsView::mouseReleaseEvent(QMouseEvent* event)
{
- QTreeView::mouseReleaseEvent(event);
- if (m_showElasticBand) {
+ const QModelIndex index = indexAt(event->pos());
+ if (index.isValid() && (index.column() == DolphinModel::Name)) {
+ QTreeView::mouseReleaseEvent(event);
+ } else {
+ // don't change the current index if the cursor is released
+ // above any other column than the name column, as the other
+ // columns act as viewport
+ const QModelIndex current = currentIndex();
+ QTreeView::mouseReleaseEvent(event);
+ selectionModel()->setCurrentIndex(current, QItemSelectionModel::Current);
+ }
+
+ m_expandingTogglePressed = false;
+ if (m_band.show) {
+ setState(NoState);
updateElasticBand();
- m_showElasticBand = false;
+ m_band.show = false;
}
}
void DolphinDetailsView::startDrag(Qt::DropActions supportedActions)
{
- DragAndDropHelper::startDrag(this, supportedActions);
+ 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;
}
}
setDirtyRegion(m_dropRect);
}
- if (event->mimeData()->hasUrls()) {
+ if (DragAndDropHelper::instance().isMimeDataSupported(event->mimeData())) {
// accept url drops, independently from the destination item
event->acceptProposedAction();
}
void DolphinDetailsView::dropEvent(QDropEvent* event)
{
- const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
- if (!urls.isEmpty()) {
- event->acceptProposedAction();
- const QModelIndex index = indexAt(event->pos());
- KFileItem item;
- if (index.isValid() && (index.column() == DolphinModel::Name)) {
- item = m_controller->itemForIndex(index);
- }
- m_controller->indicateDroppedUrls(urls,
- m_controller->url(),
- item);
+ 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_showElasticBand) {
+ if (m_band.show) {
// The following code has been taken from QListView
// and adapted to DolphinDetailsView.
// (C) 1992-2007 Trolltech ASA
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();
}
- QTreeView::resizeEvent(event);
}
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.
- const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
- const bool adjustSelection = !(modifier & Qt::ShiftModifier) &&
- !(modifier & Qt::ControlModifier) &&
- !m_showElasticBand;
-
- if (adjustSelection) {
+ 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)
{
- QHeaderView* headerView = header();
- headerView->setSortIndicator(sorting, headerView->sortIndicatorOrder());
+ header()->setSortIndicator(sorting, header()->sortIndicatorOrder());
}
void DolphinDetailsView::setSortIndicatorOrder(Qt::SortOrder sortOrder)
{
- QHeaderView* headerView = header();
- headerView->setSortIndicator(headerView->sortIndicatorSection(), sortOrder);
+ header()->setSortIndicator(header()->sortIndicatorSection(), sortOrder);
}
void DolphinDetailsView::synchronizeSortingState(int column)
void DolphinDetailsView::slotEntered(const QModelIndex& index)
{
- const QPoint pos = viewport()->mapFromGlobal(QCursor::pos());
- const int nameColumnWidth = header()->sectionSize(DolphinModel::Name);
- if (pos.x() < nameColumnWidth) {
+ if (index.column() == DolphinModel::Name) {
m_controller->emitItemEntered(index);
- }
- else {
+ } else {
m_controller->emitViewportEntered();
}
}
void DolphinDetailsView::updateElasticBand()
{
- if (m_showElasticBand) {
+ if (m_band.show) {
QRect dirtyRegion(elasticBandRect());
- m_elasticBandDestination = viewport()->mapFromGlobal(QCursor::pos());
+ 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 pos(contentsPos());
- const QPoint topLeft(m_elasticBandOrigin.x() - pos.x(), m_elasticBandOrigin.y() - pos.y());
- return QRect(topLeft, m_elasticBandDestination).normalized();
+ 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::zoomIn()
+void DolphinDetailsView::setZoomLevel(int level)
{
- if (isZoomInPossible()) {
- DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
- switch (settings->iconSize()) {
- case KIconLoader::SizeSmall: settings->setIconSize(KIconLoader::SizeMedium); break;
- case KIconLoader::SizeMedium: settings->setIconSize(KIconLoader::SizeLarge); break;
- default: Q_ASSERT(false); break;
- }
- updateDecorationSize();
+ 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::zoomOut()
+
+void DolphinDetailsView::slotShowPreviewChanged()
{
- if (isZoomOutPossible()) {
- DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
- switch (settings->iconSize()) {
- case KIconLoader::SizeLarge: settings->setIconSize(KIconLoader::SizeMedium); break;
- case KIconLoader::SizeMedium: settings->setIconSize(KIconLoader::SizeSmall); break;
- default: Q_ASSERT(false); break;
- }
- updateDecorationSize();
- }
+ const DolphinView* view = m_controller->dolphinView();
+ updateDecorationSize(view->showPreview());
}
void DolphinDetailsView::configureColumns(const QPoint& pos)
m_controller->indicateAdditionalInfoChange(list);
setColumnHidden(columnIndex, !show);
+ resizeColumns();
}
}
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, 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;
}
}
-bool DolphinDetailsView::isZoomInPossible() const
+void DolphinDetailsView::updateElasticBandSelection()
{
- DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
- return settings->iconSize() < KIconLoader::SizeLarge;
-}
+ if (!m_band.show) {
+ return;
+ }
-bool DolphinDetailsView::isZoomOutPossible() const
-{
- DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
- return settings->iconSize() > KIconLoader::SizeSmall;
-}
+ // Ensure the elastic band itself is up-to-date, in
+ // case we are being called due to e.g. a drag event.
+ updateElasticBand();
-void DolphinDetailsView::updateDecorationSize()
-{
- DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
- const int iconSize = settings->iconSize();
- setIconSize(QSize(iconSize, iconSize));
- m_decorationSize = QSize(iconSize, iconSize);
+ // 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;
+ }
- m_controller->setZoomInPossible(isZoomInPossible());
- m_controller->setZoomOutPossible(isZoomOutPossible());
+ 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;
+ }
- doItemsLayout();
-}
+ // 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;
+ }
-QPoint DolphinDetailsView::contentsPos() const
+ // 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)
{
- // implementation note: the horizonal position is ignored currently, as no
- // horizontal scrolling is done anyway during a selection
- const QScrollBar* scrollbar = verticalScrollBar();
- Q_ASSERT(scrollbar != 0);
+ DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
+ const int iconSize = showPreview ? settings->previewSize() : settings->iconSize();
+ setIconSize(QSize(iconSize, iconSize));
+ m_decorationSize = QSize(iconSize, iconSize);
- const int maxHeight = maximumViewportSize().height();
- const int height = scrollbar->maximum() - scrollbar->minimum() + 1;
- const int visibleHeight = model()->rowCount() + 1 - height;
- if (visibleHeight <= 0) {
- return QPoint(0, 0);
+ if (m_selectionManager != 0) {
+ m_selectionManager->reset();
}
- const int y = scrollbar->sliderPosition() * maxHeight / visibleHeight;
- return QPoint(0, y);
+ doItemsLayout();
}
KFileItemDelegate::Information DolphinDetailsView::infoForColumn(int columnIndex) const
// resize the name column in a way that the whole available width is used
columnWidth[KDirModel::Name] = viewport()->width() - requiredWidth;
- if (columnWidth[KDirModel::Name] < 120) {
- columnWidth[KDirModel::Name] = 120;
+
+ const int minNameWidth = 300;
+ if (columnWidth[KDirModel::Name] < minNameWidth) {
+ columnWidth[KDirModel::Name] = minNameWidth;
+
+ // It might be possible that the name column width can be
+ // decreased without clipping any text. For performance
+ // reasons the exact necessary width for full visible names is
+ // only checked for up to 200 items:
+ const int rowCount = model()->rowCount();
+ if (rowCount < 200) {
+ const int nameWidth = sizeHintForColumn(DolphinModel::Name);
+ if (nameWidth + requiredWidth <= viewport()->width()) {
+ columnWidth[KDirModel::Name] = viewport()->width() - requiredWidth;
+ } else if (nameWidth < minNameWidth) {
+ columnWidth[KDirModel::Name] = nameWidth;
+ }
+ }
}
+
headerView->resizeSection(KDirModel::Name, columnWidth[KDirModel::Name]);
}
+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.text(), viewOptions());
+ rect.setWidth(width);
+ }
+
+ return rect;
+}
+
+DolphinDetailsView::ElasticBand::ElasticBand() :
+ show(false),
+ origin(),
+ destination(),
+ lastSelectionOrigin(),
+ lastSelectionDestination(),
+ ignoreOldInfo(true),
+ outsideNearestLeftEdge(0),
+ outsideNearestRightEdge(0),
+ insideNearestLeftEdge(0),
+ insideNearestRightEdge(0)
+{
+}
+
#include "dolphindetailsview.moc"
projects / dolphin.git / blobdiff