]> cloud.milkyroute.net Git - dolphin.git/blobdiff - src/kitemviews/kitemlistview.cpp
Handle font and palette changes in Dolphin list views.
[dolphin.git] / src / kitemviews / kitemlistview.cpp
index 2ea6657a5a91962b37a758f093186698a78f9ce7..ab420cab15c05b6b1418e6663b14810924fc6095 100644 (file)
@@ -44,6 +44,8 @@
 #include <QStyleOptionRubberBand>
 #include <QTimer>
 
+#include <algorithm>
+
 #include "kitemlistviewaccessible.h"
 
 namespace {
@@ -109,8 +111,7 @@ KItemListView::KItemListView(QGraphicsWidget* parent) :
 
     m_sizeHintResolver = new KItemListSizeHintResolver(this);
 
-    m_layouter = new KItemListViewLayouter(this);
-    m_layouter->setSizeHintResolver(m_sizeHintResolver);
+    m_layouter = new KItemListViewLayouter(m_sizeHintResolver, this);
 
     m_animation = new KItemListViewAnimation(this);
     connect(m_animation, SIGNAL(finished(QGraphicsWidget*,KItemListViewAnimation::AnimationType)),
@@ -458,9 +459,9 @@ int KItemListView::lastVisibleIndex() const
     return m_layouter->lastVisibleIndex();
 }
 
-QSizeF KItemListView::itemSizeHint(int index) const
+void KItemListView::calculateItemSizeHints(QVector<QSizeF>& sizeHints) const
 {
-    return widgetCreator()->itemSizeHint(index, this);
+    widgetCreator()->calculateItemSizeHints(sizeHints, this);
 }
 
 void KItemListView::setSupportsItemExpanding(bool supportsExpanding)
@@ -502,7 +503,11 @@ void KItemListView::scrollToItem(int index)
         const qreal headerHeight = m_headerWidget->size().height();
         viewGeometry.adjust(0, headerHeight, 0, 0);
     }
-    const QRectF currentRect = itemRect(index);
+    QRectF currentRect = itemRect(index);
+
+    // Fix for Bug 311099 - View the underscore when using Ctrl + PagDown
+    currentRect.adjust(-m_styleOption.horizontalMargin, -m_styleOption.verticalMargin,
+                        m_styleOption.horizontalMargin,  m_styleOption.verticalMargin);
 
     if (!viewGeometry.contains(currentRect)) {
         qreal newOffset = scrollOffset();
@@ -603,12 +608,12 @@ KItemListHeader* KItemListView::header() const
     return m_header;
 }
 
-QPixmap KItemListView::createDragPixmap(const QSet<int>& indexes) const
+QPixmap KItemListView::createDragPixmap(const KItemSet& indexes) const
 {
     QPixmap pixmap;
 
     if (indexes.count() == 1) {
-        KItemListWidget* item = m_visibleItems.value(indexes.toList().first());
+        KItemListWidget* item = m_visibleItems.value(indexes.first());
         QGraphicsView* graphicsView = scene()->views()[0];
         if (item && graphicsView) {
             pixmap = item->createDragPixmap(0, graphicsView);
@@ -888,11 +893,23 @@ void KItemListView::onTransactionEnd()
 
 bool KItemListView::event(QEvent* event)
 {
-    // Forward all events to the controller and handle them there
-    if (!m_editingRole && m_controller && m_controller->processEvent(event, transform())) {
-        event->accept();
-        return true;
+    switch (event->type()) {
+    case QEvent::PaletteChange:
+        updatePalette();
+        break;
+
+    case QEvent::FontChange:
+        updateFont();
+        break;
+
+    default:
+        // Forward all other events to the controller and handle them there
+        if (!m_editingRole && m_controller && m_controller->processEvent(event, transform())) {
+            event->accept();
+            return true;
+        }
     }
+
     return QGraphicsWidget::event(event);
 }
 
@@ -945,6 +962,27 @@ QList<KItemListWidget*> KItemListView::visibleItemListWidgets() const
     return m_visibleItems.values();
 }
 
+void KItemListView::updateFont()
+{
+    if (scene() && !scene()->views().isEmpty()) {
+        KItemListStyleOption option = styleOption();
+        option.font = scene()->views().first()->font();
+        option.fontMetrics = QFontMetrics(option.font);
+
+        setStyleOption(option);
+    }
+}
+
+void KItemListView::updatePalette()
+{
+    if (scene() && !scene()->views().isEmpty()) {
+        KItemListStyleOption option = styleOption();
+        option.palette = scene()->views().first()->palette();
+
+        setStyleOption(option);
+    }
+}
+
 void KItemListView::slotItemsInserted(const KItemRangeList& itemRanges)
 {
     if (m_itemSize.isEmpty()) {
@@ -1063,11 +1101,6 @@ void KItemListView::slotItemsRemoved(const KItemRangeList& itemRanges)
 
     m_layouter->markAsDirty();
 
-    int removedItemsCount = 0;
-    for (int i = 0; i < itemRanges.count(); ++i) {
-        removedItemsCount += itemRanges[i].count;
-    }
-
     m_sizeHintResolver->itemsRemoved(itemRanges);
 
     for (int i = itemRanges.count() - 1; i >= 0; --i) {
@@ -1081,13 +1114,17 @@ void KItemListView::slotItemsRemoved(const KItemRangeList& itemRanges)
 
         const int firstRemovedIndex = index;
         const int lastRemovedIndex = index + count - 1;
-        const int lastIndex = m_model->count() - 1 + removedItemsCount;
-        removedItemsCount -= count;
+
+        // Remeber which items have to be moved because they are behind the removed range.
+        QVector<int> itemsToMove;
 
         // Remove all KItemListWidget instances that got deleted
-        for (int i = firstRemovedIndex; i <= lastRemovedIndex; ++i) {
-            KItemListWidget* widget = m_visibleItems.value(i);
-            if (!widget) {
+        foreach (KItemListWidget* widget, m_visibleItems) {
+            const int i = widget->index();
+            if (i < firstRemovedIndex) {
+                continue;
+            } else if (i > lastRemovedIndex) {
+                itemsToMove.append(i);
                 continue;
             }
 
@@ -1115,17 +1152,18 @@ void KItemListView::slotItemsRemoved(const KItemRangeList& itemRanges)
         }
 
         // Update the indexes of all KItemListWidget instances that are located
-        // after the deleted items
-        for (int i = lastRemovedIndex + 1; i <= lastIndex; ++i) {
+        // after the deleted items. It is important to update them in ascending
+        // order to prevent overlaps when setting the new index.
+        std::sort(itemsToMove.begin(), itemsToMove.end());
+        foreach (int i, itemsToMove) {
             KItemListWidget* widget = m_visibleItems.value(i);
-            if (widget) {
-                const int newIndex = i - count;
-                if (hasMultipleRanges) {
-                    setWidgetIndex(widget, newIndex);
-                } else {
-                    // Try to animate the moving of the item
-                    moveWidgetToIndex(widget, newIndex);
-                }
+            Q_ASSERT(widget);
+            const int newIndex = i - count;
+            if (hasMultipleRanges) {
+                setWidgetIndex(widget, newIndex);
+            } else {
+                // Try to animate the moving of the item
+                moveWidgetToIndex(widget, newIndex);
             }
         }
 
@@ -1165,7 +1203,7 @@ void KItemListView::slotItemsRemoved(const KItemRangeList& itemRanges)
 
 void KItemListView::slotItemsMoved(const KItemRange& itemRange, const QList<int>& movedToIndexes)
 {
-    m_sizeHintResolver->itemsMoved(itemRange.index, itemRange.count);
+    m_sizeHintResolver->itemsMoved(itemRange, movedToIndexes);
     m_layouter->markAsDirty();
 
     if (m_controller) {
@@ -1227,6 +1265,13 @@ void KItemListView::slotItemsChanged(const KItemRangeList& itemRanges,
     QAccessible::updateAccessibility(this, 0, QAccessible::TableModelChanged);
 }
 
+void KItemListView::slotGroupsChanged()
+{
+    updateVisibleGroupHeaders();
+    doLayout(NoAnimation);
+    updateSiblingsInformation();
+}
+
 void KItemListView::slotGroupedSortingChanged(bool current)
 {
     m_grouped = current;
@@ -1235,8 +1280,10 @@ void KItemListView::slotGroupedSortingChanged(bool current)
     if (m_grouped) {
         updateGroupHeaderHeight();
     } else {
-        // Clear all visible headers
-        QMutableHashIterator<KItemListWidget*, KItemListGroupHeader*> it (m_visibleGroups);
+        // Clear all visible headers. Note that the QHashIterator takes a copy of
+        // m_visibleGroups. Therefore, it remains valid even if items are removed
+        // from m_visibleGroups in recycleGroupHeaderForWidget().
+        QHashIterator<KItemListWidget*, KItemListGroupHeader*> it(m_visibleGroups);
         while (it.hasNext()) {
             it.next();
             recycleGroupHeaderForWidget(it.key());
@@ -1290,7 +1337,7 @@ void KItemListView::slotCurrentChanged(int current, int previous)
     QAccessible::updateAccessibility(this, current+1, QAccessible::Focus);
 }
 
-void KItemListView::slotSelectionChanged(const QSet<int>& current, const QSet<int>& previous)
+void KItemListView::slotSelectionChanged(const KItemSet& current, const KItemSet& previous)
 {
     Q_UNUSED(previous);
 
@@ -1487,7 +1534,7 @@ void KItemListView::setController(KItemListController* controller)
         if (previous) {
             KItemListSelectionManager* selectionManager = previous->selectionManager();
             disconnect(selectionManager, SIGNAL(currentChanged(int,int)), this, SLOT(slotCurrentChanged(int,int)));
-            disconnect(selectionManager, SIGNAL(selectionChanged(QSet<int>,QSet<int>)), this, SLOT(slotSelectionChanged(QSet<int>,QSet<int>)));
+            disconnect(selectionManager, SIGNAL(selectionChanged(KItemSet,KItemSet)), this, SLOT(slotSelectionChanged(KItemSet,KItemSet)));
         }
 
         m_controller = controller;
@@ -1495,7 +1542,7 @@ void KItemListView::setController(KItemListController* controller)
         if (controller) {
             KItemListSelectionManager* selectionManager = controller->selectionManager();
             connect(selectionManager, SIGNAL(currentChanged(int,int)), this, SLOT(slotCurrentChanged(int,int)));
-            connect(selectionManager, SIGNAL(selectionChanged(QSet<int>,QSet<int>)), this, SLOT(slotSelectionChanged(QSet<int>,QSet<int>)));
+            connect(selectionManager, SIGNAL(selectionChanged(KItemSet,KItemSet)), this, SLOT(slotSelectionChanged(KItemSet,KItemSet)));
         }
 
         onControllerChanged(controller, previous);
@@ -1519,6 +1566,8 @@ void KItemListView::setModel(KItemModelBase* model)
                    this,    SLOT(slotItemsRemoved(KItemRangeList)));
         disconnect(m_model, SIGNAL(itemsMoved(KItemRange,QList<int>)),
                    this,    SLOT(slotItemsMoved(KItemRange,QList<int>)));
+        disconnect(m_model, SIGNAL(groupsChanged()),
+                   this,    SLOT(slotGroupsChanged()));
         disconnect(m_model, SIGNAL(groupedSortingChanged(bool)),
                    this,    SLOT(slotGroupedSortingChanged(bool)));
         disconnect(m_model, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
@@ -1542,6 +1591,8 @@ void KItemListView::setModel(KItemModelBase* model)
                 this,    SLOT(slotItemsRemoved(KItemRangeList)));
         connect(m_model, SIGNAL(itemsMoved(KItemRange,QList<int>)),
                 this,    SLOT(slotItemsMoved(KItemRange,QList<int>)));
+        connect(m_model, SIGNAL(groupsChanged()),
+                this,    SLOT(slotGroupsChanged()));
         connect(m_model, SIGNAL(groupedSortingChanged(bool)),
                 this,    SLOT(slotGroupedSortingChanged(bool)));
         connect(m_model, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
@@ -1633,18 +1684,22 @@ void KItemListView::doLayout(LayoutAnimationHint hint, int changedIndex, int cha
             widget->resize(itemBounds.size());
 
             if (animate && changedCount < 0) {
-                // Items have been deleted, move the created item to the
-                // imaginary old position. They will get animated to the new position
-                // later.
-                const QRectF itemRect = m_layouter->itemRect(i - changedCount);
-                if (itemRect.isEmpty()) {
-                    const QPointF invisibleOldPos = (scrollOrientation() == Qt::Vertical)
-                                                    ? QPointF(0, size().height()) : QPointF(size().width(), 0);
-                    widget->setPos(invisibleOldPos);
-                } else {
-                    widget->setPos(itemRect.topLeft());
+                // Items have been deleted.
+                if (i >= changedIndex) {
+                    // The item is located behind the removed range. Move the
+                    // created item to the imaginary old position outside the
+                    // view. It will get animated to the new position later.
+                    const int previousIndex = i - changedCount;
+                    const QRectF itemRect = m_layouter->itemRect(previousIndex);
+                    if (itemRect.isEmpty()) {
+                        const QPointF invisibleOldPos = (scrollOrientation() == Qt::Vertical)
+                                                        ? QPointF(0, size().height()) : QPointF(size().width(), 0);
+                        widget->setPos(invisibleOldPos);
+                    } else {
+                        widget->setPos(itemRect.topLeft());
+                    }
+                    applyNewPos = false;
                 }
-                applyNewPos = false;
             }
 
             if (supportsExpanding && changedCount == 0) {
@@ -1663,7 +1718,7 @@ void KItemListView::doLayout(LayoutAnimationHint hint, int changedIndex, int cha
 
             const bool itemsRemoved = (changedCount < 0);
             const bool itemsInserted = (changedCount > 0);
-            if (itemsRemoved && (i >= changedIndex + changedCount + 1)) {
+            if (itemsRemoved && (i >= changedIndex)) {
                 // The item is located after the removed items. Animate the moving of the position.
                 applyNewPos = !moveWidget(widget, newPos);
             } else if (itemsInserted && i >= changedIndex) {