Assure that automatically expanding of a folder also works when the new folder has...

[dolphin.git] / src / sidebartreeview.cpp

diff --git a/src/sidebartreeview.cpp b/src/sidebartreeview.cpp
index caf1314c688ba5bfaf7c248189d022c9f086ef32..00c98f6e7e7d7c89346fef4d5558eb31d00371f5 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);
@@ -39,15 +40,21 @@ SidebarTreeView::SidebarTreeView(QWidget* parent) :
     setFrameStyle(QFrame::NoFrame);
     setDragDropMode(QAbstractItemView::DragDrop);
     setDropIndicatorShown(false);
-    setAutoExpandDelay(300);
-    setHorizontalScrollMode(QAbstractItemView::ScrollPerPixel);
-    setVerticalScrollMode(QAbstractItemView::ScrollPerPixel);
+
+    setVerticalScrollMode(QListView::ScrollPerPixel);
+    setHorizontalScrollMode(QListView::ScrollPerPixel);
 
     viewport()->setAttribute(Qt::WA_Hover);
 
-    QPalette palette = viewport()->palette();
-    palette.setColor(viewport()->backgroundRole(), Qt::transparent);
-    viewport()->setPalette(palette);
+    // make the background transparent and apply the window-text color
+    // to the text color, so that enough contrast is given for all color
+    // schemes
+    QPalette p = palette();
+    p.setColor(QPalette::Active,   QPalette::Text, p.color(QPalette::Active,   QPalette::WindowText));
+    p.setColor(QPalette::Inactive, QPalette::Text, p.color(QPalette::Inactive, QPalette::WindowText));
+    p.setColor(QPalette::Disabled, QPalette::Text, p.color(QPalette::Disabled, QPalette::WindowText));
+    setPalette(p);
+    viewport()->setAutoFillBackground(false);
 
     KFileItemDelegate* delegate = new KFileItemDelegate(this);
     setItemDelegate(delegate);
@@ -71,63 +78,58 @@ 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);
+    return KTreeView::event(event);
+}
+
+void SidebarTreeView::startDrag(Qt::DropActions supportedActions)
+{
+    DragAndDropHelper::startDrag(this, supportedActions);
 }
 
 void SidebarTreeView::dragEnterEvent(QDragEnterEvent* event)
 {
+    KTreeView::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;
+    KTreeView::dragLeaveEvent(event);
     setDirtyRegion(m_dropRect);
 }
 
 void SidebarTreeView::dragMoveEvent(QDragMoveEvent* event)
 {
-    QTreeView::dragMoveEvent(event);
+    KTreeView::dragMoveEvent(event);
 
     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
     const QModelIndex index = indexAt(event->pos());
     setDirtyRegion(m_dropRect);
     m_dropRect = visualRect(index);
     setDirtyRegion(m_dropRect);
-}
 
-void SidebarTreeView::dropEvent(QDropEvent* event)
-{
-    const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
-    if (urls.isEmpty()) {
-        QTreeView::dropEvent(event);
-    } else {
+    if (event->mimeData()->hasUrls()) {
+        // accept url drops, independently from the destination item
         event->acceptProposedAction();
-        const QModelIndex index = indexAt(event->pos());
-        if (index.isValid()) {
-            emit urlsDropped(urls, index);
-        }
     }
-    m_dragging = false;
 }
 
-void SidebarTreeView::paintEvent(QPaintEvent* event)
+void SidebarTreeView::dropEvent(QDropEvent* 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);
+    const QModelIndex index = indexAt(event->pos());
+    if (index.isValid()) {
+        emit urlsDropped(index, event);
     }
+    KTreeView::dropEvent(event);
 }
 
 #include "sidebartreeview.moc"