use the glow to indicate focus/hover

svn path=/trunk/KDE/kdelibs/; revision=1027297

widgets/spinbox.cpp

@@ -22,10 +22,13 @@
 
 #include <QApplication>
 #include <QPainter>
+#include <QStyleOptionSpinBox>
+
 #include <knuminput.h>
 #include <kmimetype.h>
 
 #include <plasma/theme.h>
+#include <plasma/framesvg.h>
 #include <plasma/private/style_p.h>
 
 namespace Plasma
@@ -65,6 +68,7 @@ public:
 
     SpinBox *q;
     Plasma::Style::Ptr style;
+    Plasma::FrameSvg *background;
     bool customFont;
 };
 
@@ -81,6 +85,10 @@ SpinBox::SpinBox(QGraphicsWidget *parent)
     native->setAttribute(Qt::WA_NoSystemBackground);
     native->setAutoFillBackground(false);
 
+    d->background = new Plasma::FrameSvg(this);
+    d->background->setImagePath("widgets/lineedit");
+    d->background->setCacheAllRenderedFrames(true);
+
     d->style = Plasma::Style::sharedStyle();
     native->setStyle(d->style.data());
     d->setPalette();
@@ -153,6 +161,45 @@ void SpinBox::changeEvent(QEvent *event)
     QGraphicsProxyWidget::changeEvent(event);
 }
 
+void SpinBox::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
+{
+    Q_UNUSED(event)
+    update();
+}
+
+void SpinBox::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
+{
+    Q_UNUSED(event)
+    update();
+}
+
+void SpinBox::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+    Q_UNUSED(option)
+    Q_UNUSED(widget)
+
+    if (hasFocus() || isUnderMouse()) {
+        if (hasFocus()) {
+            d->background->setElementPrefix("focus");
+        } else {
+            d->background->setElementPrefix("hover");
+        }
+        qreal left, top, right, bottom;
+        d->background->getMargins(left, top, right, bottom);
+
+        QStyleOptionSpinBox spinOpt;
+        spinOpt.initFrom(nativeWidget());
+        QRect controlrect = nativeWidget()->style()->subControlRect(QStyle::CC_SpinBox, &spinOpt, QStyle::SC_SpinBoxFrame, nativeWidget());
+
+        d->background->resizeFrame(controlrect.size()+QSizeF(left+right, top+bottom));
+        d->background->paintFrame(painter, QPoint(-left, -top));
+    }
+
+    QGraphicsProxyWidget::paint(painter, option, widget);
+}
+
+
+
 } // namespace Plasma
 
 #include <spinbox.moc>

widgets/spinbox.h

@@ -86,6 +86,9 @@ public:
 
 protected:
     void changeEvent(QEvent *event);
+    void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
+    void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
 
 public Q_SLOTS:
     /**