Use fast image transformation like Gwenview. This increases the performance of applyI...

[dolphin.git] / src / sidebartreeview.cpp

diff --git a/src/sidebartreeview.cpp b/src/sidebartreeview.cpp
index 8d0b1c73dd2053f0e418c46c3c9373e369d1f4b2..a2cc3adc3f172ee1aa8f15752124715ae1266379 100644 (file)
--- a/src/sidebartreeview.cpp
+++ b/src/sidebartreeview.cpp
@@ -21,15 +21,16 @@
 
 #include "dolphincontroller.h"
 #include "dolphinmodel.h"
+#include "draganddrophelper.h"
 
 #include <kfileitemdelegate.h>
 #include <QKeyEvent>
 #include <QPainter>
 #include <QHeaderView>
+#include <QScrollBar>
 
 SidebarTreeView::SidebarTreeView(QWidget* parent) :
-    QTreeView(parent),
-    m_dragging(false)
+    KTreeView(parent)
 {
     setAcceptDrops(true);
     setUniformRowHeights(true);
@@ -41,6 +42,9 @@ SidebarTreeView::SidebarTreeView(QWidget* parent) :
     setDropIndicatorShown(false);
     setAutoExpandDelay(300);
 
+    setVerticalScrollMode(QListView::ScrollPerPixel);
+    setHorizontalScrollMode(QListView::ScrollPerPixel);
+
     viewport()->setAttribute(Qt::WA_Hover);
 
     QPalette palette = viewport()->palette();
@@ -69,25 +73,32 @@ bool SidebarTreeView::event(QEvent* event)
         hideColumn(DolphinModel::Tags);
         header()->hide();
     }
+    else if (event->type() == QEvent::UpdateRequest) {
+        // a wheel movement will scroll 1 item
+        if (model()->rowCount() > 0) {
+            verticalScrollBar()->setSingleStep(sizeHintForRow(0) / 3);
+        }
+    }
 
     return QTreeView::event(event);
 }
 
+void SidebarTreeView::startDrag(Qt::DropActions supportedActions)
+{
+    DragAndDropHelper::startDrag(this, supportedActions);
+}
+
 void SidebarTreeView::dragEnterEvent(QDragEnterEvent* event)
 {
+    QTreeView::dragEnterEvent(event);
     if (event->mimeData()->hasUrls()) {
         event->acceptProposedAction();
     }
-    QTreeView::dragEnterEvent(event);
-    m_dragging = true;
 }
 
 void SidebarTreeView::dragLeaveEvent(QDragLeaveEvent* event)
 {
     QTreeView::dragLeaveEvent(event);
-
-    // TODO: remove this code when the issue #160611 is solved in Qt 4.4
-    m_dragging = false;
     setDirtyRegion(m_dropRect);
 }
 
@@ -100,6 +111,11 @@ void SidebarTreeView::dragMoveEvent(QDragMoveEvent* event)
     setDirtyRegion(m_dropRect);
     m_dropRect = visualRect(index);
     setDirtyRegion(m_dropRect);
+
+    if (event->mimeData()->hasUrls()) {
+        // accept url drops, independently from the destination item
+        event->acceptProposedAction();
+    }
 }
 
 void SidebarTreeView::dropEvent(QDropEvent* event)
@@ -114,18 +130,6 @@ void SidebarTreeView::dropEvent(QDropEvent* event)
             emit urlsDropped(urls, index);
         }
     }
-    m_dragging = false;
-}
-
-void SidebarTreeView::paintEvent(QPaintEvent* event)
-{
-    QTreeView::paintEvent(event);
-
-    // TODO: remove this code when the issue #160611 is solved in Qt 4.4
-    if (m_dragging) {
-        const QBrush& brush = palette().brush(QPalette::Normal, QPalette::Highlight);
-        DolphinController::drawHoverIndication(viewport(), m_dropRect, brush);
-    }
 }
 
 #include "sidebartreeview.moc"