From ce765ec6105a0a3d68bad454b498411f032eb7ca Mon Sep 17 00:00:00 2001
From: "Aaron J. Seigo" <aseigo@kde.org>
Date: Thu, 15 Nov 2007 03:35:12 +0000
Subject: [PATCH] better button mouse interaction; patch by Jason Stubbs
 CCMAIL:jasonstubbs@gmail.com

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=736872
---
 widgets/pushbutton.cpp | 30 ++++++++++++++++++++++--------
 widgets/pushbutton.h   |  1 +
 2 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/widgets/pushbutton.cpp b/widgets/pushbutton.cpp
index 122279cbb..0b28865a3 100644
--- a/widgets/pushbutton.cpp
+++ b/widgets/pushbutton.cpp
@@ -26,6 +26,7 @@
 #include <QStyle>
 #include <QWidget>
 #include <QPainter>
+#include <QGraphicsScene>
 #include <QGraphicsSceneMouseEvent>
 #include <QFontMetricsF>
 #include <QApplication>
@@ -250,22 +251,35 @@ void PushButton::mousePressEvent(QGraphicsSceneMouseEvent *event)
     update();
 }
 
+void PushButton::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
+{
+    event->accept();
+    if (sceneBoundingRect().contains(event->scenePos())) {
+        if (d->state == Private::Released && scene()->mouseGrabberItem() == this) {
+            d->state = Private::Pressed;
+            update();
+        }
+    } else {
+        if (d->state == Private::Pressed) {
+            d->state = Private::Released;
+            update();
+        }
+    }
+}
+
 void PushButton::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 {
     event->accept();
     if (d->state == Private::Pressed) {
         d->state = Private::Released;
+        emit clicked();
 
-        if (sceneBoundingRect().contains(event->scenePos())) {
-            emit clicked();
-
-            if (d->checkable) {
-                d->checked = ! d->checked;
-                emit toggled(d->checked);
-            }
+        if (d->checkable) {
+            d->checked = ! d->checked;
+            emit toggled(d->checked);
         }
+        update();
     }
-    update();
 }
 
 QSizeF PushButton::minimumSize() const
diff --git a/widgets/pushbutton.h b/widgets/pushbutton.h
index 2043a3180..99f31b674 100644
--- a/widgets/pushbutton.h
+++ b/widgets/pushbutton.h
@@ -178,6 +178,7 @@ Q_SIGNALS:
 
 protected:
     void mousePressEvent(QGraphicsSceneMouseEvent *event);
+    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
     void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
 
     void paintWidget(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);