Enable basic drag and drop support for the Places Panel

The dropping has not been implemented yet, however in the context of
this step the creating of the drag-pixmap is now forwarded to
the item-widgets. This allows creating some optimized dragging-pixmaps
e.g. for the details-view, where only the name and icon should
be provided as drag-pixmap.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/kitemviews/kitemlistwidget.cpp b/src/kitemviews/kitemlistwidget.cpp
index f304aa41d..45329afb3 100644
--- a/src/kitemviews/kitemlistwidget.cpp
+++ b/src/kitemviews/kitemlistwidget.cpp
@@ -360,6 +360,22 @@ QRectF KItemListWidget::expansionToggleRect() const
     return QRectF();
 }
 
+QPixmap KItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option,
+                                          QWidget* widget)
+{
+    QPixmap pixmap(size().toSize());
+    pixmap.fill(Qt::transparent);
+
+    QPainter painter(&pixmap);
+
+    const bool oldAlternateBackground = m_alternateBackground;
+    setAlternateBackground(false);
+    paint(&painter, option, widget);
+    setAlternateBackground(oldAlternateBackground);
+
+    return pixmap;
+}
+
 void KItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
                                   const QSet<QByteArray>& roles)
 {