provide a common drawing method for the hover indication during drag & drop until issue/wish #160611 is solved in Qt4.4

svn path=/trunk/KDE/kdebase/apps/; revision=675042

1 files changed, 29 insertions, 0 deletions

diff --git a/src/dolphincontroller.cpp b/src/dolphincontroller.cpp
index 378c1b4ba..1831c15c3 100644
--- a/src/dolphincontroller.cpp
+++ b/src/dolphincontroller.cpp
@@ -19,6 +19,8 @@
 
 #include "dolphincontroller.h"
 
+#include <QPainter>
+
 DolphinController::DolphinController(QObject* parent) :
     QObject(parent),
     m_showPreview(false),
@@ -87,6 +89,33 @@ void DolphinController::triggerZoomOut()
     emit zoomOut();
 }
 
+void DolphinController::drawHoverIndication(QWidget* widget,
+                                            const QRect& bounds,
+                                            const QBrush& brush)
+{
+    QPainter painter(widget);
+    painter.save();
+    QBrush blendedBrush(brush);
+    QColor color = blendedBrush.color();
+    color.setAlpha(64);
+    blendedBrush.setColor(color);
+
+    const int radius = 10;
+    QPainterPath path(QPointF(bounds.left(), bounds.top() + radius));
+    path.quadTo(bounds.left(), bounds.top(), bounds.left() + radius, bounds.top());
+    path.lineTo(bounds.right() - radius, bounds.top());
+    path.quadTo(bounds.right(), bounds.top(), bounds.right(), bounds.top() + radius);
+    path.lineTo(bounds.right(), bounds.bottom() - radius);
+    path.quadTo(bounds.right(), bounds.bottom(), bounds.right() - radius, bounds.bottom());
+    path.lineTo(bounds.left() + radius, bounds.bottom());
+    path.quadTo(bounds.left(), bounds.bottom(), bounds.left(), bounds.bottom() - radius);
+    path.closeSubpath();
+
+    painter.setRenderHint(QPainter::Antialiasing);
+    painter.fillPath(path, blendedBrush);
+    painter.restore();
+}
+
 void DolphinController::triggerItem(const QModelIndex& index)
 {
     emit itemTriggered(index);