diff options
Diffstat (limited to 'src/dolphinview.cpp')
| -rw-r--r-- | src/dolphinview.cpp | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/src/dolphinview.cpp b/src/dolphinview.cpp index d4dbbd2c2..4a81b12ea 100644 --- a/src/dolphinview.cpp +++ b/src/dolphinview.cpp @@ -98,6 +98,7 @@ DolphinView::DolphinView(QWidget* parent, m_columnView(0), m_fileItemDelegate(0), m_selectionModel(0), + m_selectionChangedTimer(0), m_dolphinModel(dolphinModel), m_dirLister(dirLister), m_proxyModel(proxyModel), @@ -188,7 +189,7 @@ void DolphinView::setActive(bool active) QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color(); if (active) { - emit selectionChanged(selectedItems()); + emitSelectionChangedSignal(); } else { color.setAlpha(150); } @@ -958,6 +959,14 @@ void DolphinView::triggerItem(const KFileItem& item) emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart } +void DolphinView::emitDelayedSelectionChangedSignal() +{ + // Invoke emitSelectionChangedSignal() with a delay of 300 ms. This assures + // that fast selection changes don't result in expensive operations to + // collect all file items for the signal (see DolphinView::selectedItems()). + m_selectionChangedTimer->start(); +} + void DolphinView::emitSelectionChangedSignal() { emit selectionChanged(DolphinView::selectedItems()); @@ -1436,6 +1445,12 @@ void DolphinView::createView() m_selectionModel = view->selectionModel(); } + m_selectionChangedTimer = new QTimer(this); + m_selectionChangedTimer->setSingleShot(true); + m_selectionChangedTimer->setInterval(300); + connect(m_selectionChangedTimer, SIGNAL(timeout()), + this, SLOT(emitSelectionChangedSignal())); + // reparent the selection model, as it should not be deleted // when deleting the model m_selectionModel->setParent(this); @@ -1454,7 +1469,7 @@ void DolphinView::createView() m_topLayout->insertWidget(1, view); connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)), - this, SLOT(emitSelectionChangedSignal())); + this, SLOT(emitDelayedSelectionChangedSignal())); connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(emitContentsMoved())); connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)), |