Disable smooth-scrolling dependent on the graphics-effect level

[dolphin.git] / src / kitemviews / kitemlistcontroller.cpp

diff --git a/src/kitemviews/kitemlistcontroller.cpp b/src/kitemviews/kitemlistcontroller.cpp
index 7798fc364df5d57cfab67271f6d07f927b4708cf..fedbe61a90ddff63d4b8241229693c66d471bac2 100644 (file)
--- a/src/kitemviews/kitemlistcontroller.cpp
+++ b/src/kitemviews/kitemlistcontroller.cpp
@@ -41,7 +41,9 @@
 
 KItemListController::KItemListController(QObject* parent) :
     QObject(parent),
+    m_singleClickActivation(KGlobalSettings::singleClick()),
     m_selectionTogglePressed(false),
+    m_clearSelectionIfItemsAreNotDragged(false),
     m_selectionBehavior(NoSelection),
     m_model(0),
     m_view(0),
@@ -142,6 +144,16 @@ int KItemListController::autoActivationDelay() const
     return m_autoActivationTimer->interval();
 }
 
+void KItemListController::setSingleClickActivation(bool singleClick)
+{
+    m_singleClickActivation = singleClick;
+}
+
+bool KItemListController::singleClickActivation() const
+{
+    return m_singleClickActivation;
+}
+
 bool KItemListController::showEvent(QShowEvent* event)
 {
     Q_UNUSED(event);
@@ -369,7 +381,9 @@ bool KItemListController::mousePressEvent(QGraphicsSceneMouseEvent* event, const
     }
 
     if (m_view->isAboveExpansionToggle(m_pressedIndex, m_pressedMousePos)) {
+        m_selectionManager->endAnchoredSelection();
         m_selectionManager->setCurrentItem(m_pressedIndex);
+        m_selectionManager->beginAnchoredSelection(m_pressedIndex);
         return true;
     }
 
@@ -400,6 +414,13 @@ bool KItemListController::mousePressEvent(QGraphicsSceneMouseEvent* event, const
                                 (!shiftOrControlPressed && !pressedItemAlreadySelected);
     if (clearSelection) {
         m_selectionManager->clearSelection();
+    } else if (pressedItemAlreadySelected && (event->buttons() & Qt::LeftButton)) {
+        // The user might want to start dragging multiple items, but if he clicks the item
+        // in order to trigger it instead, the other selected items must be deselected.
+        // However, we do not know yet what the user is going to do.
+        // -> remember that the user pressed an item which had been selected already and
+        //    clear the selection in mouseReleaseEvent(), unless the items are dragged.
+        m_clearSelectionIfItemsAreNotDragged = true;
     }
 
     if (!shiftPressed) {
@@ -492,7 +513,12 @@ bool KItemListController::mouseMoveEvent(QGraphicsSceneMouseEvent* event, const
                     // done on the mouse-press event, but when using the selection-toggle on a
                     // selected item the dragged item is not selected yet.
                     m_selectionManager->setSelected(m_pressedIndex, 1, KItemListSelectionManager::Toggle);
+                } else {
+                    // A selected item has been clicked to drag all selected items
+                    // -> the selection should not be cleared when the mouse button is released.
+                    m_clearSelectionIfItemsAreNotDragged = false;
                 }
+
                 startDragging();
             }
         }
@@ -566,6 +592,14 @@ bool KItemListController::mouseReleaseEvent(QGraphicsSceneMouseEvent* event, con
     if (index >= 0 && index == m_pressedIndex) {
         // The release event is done above the same item as the press event
 
+        if (m_clearSelectionIfItemsAreNotDragged) {
+            // A selected item has been clicked, but no drag operation has been started
+            // -> clear the rest of the selection.
+            m_selectionManager->clearSelection();
+            m_selectionManager->setSelected(m_pressedIndex, 1, KItemListSelectionManager::Select);
+            m_selectionManager->beginAnchoredSelection(m_pressedIndex);
+        }
+
         if (event->button() & Qt::LeftButton) {
             bool emitItemActivated = true;
             if (m_view->isAboveExpansionToggle(index, pos)) {
@@ -577,7 +611,7 @@ bool KItemListController::mouseReleaseEvent(QGraphicsSceneMouseEvent* event, con
             } else if (shiftOrControlPressed) {
                 // The mouse click should only update the selection, not trigger the item
                 emitItemActivated = false;
-            } else if (!KGlobalSettings::singleClick()) {
+            } else if (!m_singleClickActivation) {
                 emitItemActivated = false;
             }
             if (emitItemActivated) {
@@ -590,6 +624,7 @@ bool KItemListController::mouseReleaseEvent(QGraphicsSceneMouseEvent* event, con
 
     m_pressedMousePos = QPointF();
     m_pressedIndex = -1;
+    m_clearSelectionIfItemsAreNotDragged = false;
     return false;
 }
 
@@ -598,7 +633,7 @@ bool KItemListController::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event,
     const QPointF pos = transform.map(event->pos());
     const int index = m_view->itemAt(pos);
 
-    bool emitItemActivated = !KGlobalSettings::singleClick() &&
+    bool emitItemActivated = !m_singleClickActivation &&
                              (event->button() & Qt::LeftButton) &&
                              index >= 0 && index < m_model->count();
     if (emitItemActivated) {
@@ -914,7 +949,7 @@ void KItemListController::startDragging()
     const QPixmap pixmap = m_view->createDragPixmap(selectedItems);
     drag->setPixmap(pixmap);
 
-    drag->exec(Qt::MoveAction | Qt::CopyAction | Qt::LinkAction, Qt::IgnoreAction);
+    drag->exec(Qt::MoveAction | Qt::CopyAction | Qt::LinkAction, Qt::CopyAction);
 }
 
 KItemListWidget* KItemListController::hoveredWidget() const