added subtle transparency for tooltips

svn path=/trunk/KDE/kdebase/apps/; revision=938051

2 files changed, 13 insertions, 3 deletions

diff --git a/src/tooltips/kformattedballoontipdelegate.cpp b/src/tooltips/kformattedballoontipdelegate.cpp
index 140c90ef4..a897d8312 100644
--- a/src/tooltips/kformattedballoontipdelegate.cpp
+++ b/src/tooltips/kformattedballoontipdelegate.cpp
@@ -51,14 +51,17 @@ void KFormattedBalloonTipDelegate::paint(QPainter *painter,
                                          const KStyleOptionToolTip *option,
                                          const KToolTipItem *item) const
 {
+    QColor toColor = option->palette.brush(QPalette::ToolTipBase).color();
+    QColor fromColor = KColorScheme::shade(toColor, KColorScheme::LightShade, 0.2);
+
     QPainterPath path = createPath(*option);
     if (haveAlphaChannel()) {
         painter->setRenderHint(QPainter::Antialiasing);
         painter->translate(.5, .5);
+        toColor.setAlpha(220);
+        fromColor.setAlpha(220);
     }
 
-    const QColor toColor = option->palette.brush(QPalette::ToolTipBase).color();
-    const QColor fromColor = KColorScheme::shade(toColor, KColorScheme::LightShade, 0.2);
 
     QLinearGradient gradient(option->rect.topLeft(), option->rect.bottomLeft());
     gradient.setColorAt(0.0, fromColor);
diff --git a/src/tooltips/ktooltip.cpp b/src/tooltips/ktooltip.cpp
index a0126fbff..d5aa0f7b7 100644
--- a/src/tooltips/ktooltip.cpp
+++ b/src/tooltips/ktooltip.cpp
@@ -242,7 +242,7 @@ KToolTipDelegate *KAbstractToolTipLabel::delegate() const
 class QWidgetLabel : public QWidget, public KAbstractToolTipLabel
 {
 public:
-    QWidgetLabel() : QWidget(0, Qt::ToolTip) {}
+    QWidgetLabel();
     void showTip(const QPoint &pos, const KToolTipItem *item);
     void moveTip(const QPoint &pos);
     void hideTip();
@@ -255,6 +255,13 @@ private:
     const KToolTipItem *currentItem;
 };
 
+QWidgetLabel::QWidgetLabel() : QWidget(0, Qt::ToolTip)
+{
+    if (KToolTipManager::instance()->haveAlphaChannel()) {
+        setAttribute(Qt::WA_TranslucentBackground);
+    }
+}
+
 void QWidgetLabel::showTip(const QPoint &pos, const KToolTipItem *item)
 {
     currentItem = item;