Remove use of shared NOTIFY signals in QGraphicsScale

Sharing a NOTIFY signal can cause binding loop warnings with no apparent
cause.

Task-number: QTBUG-12333
Reviewed-by: Aaron Kennedy
Reviewed-by: Michael Brasser
(cherry picked from commit 5d5feaa86f3933a1e89b53267953b86e2b0459ed)

2 files changed, 9 insertions, 3 deletions

diff --git a/src/gui/graphicsview/qgraphicstransform.cpp b/src/gui/graphicsview/qgraphicstransform.cpp
index 4ab6975..986bee6 100644
--- a/src/gui/graphicsview/qgraphicstransform.cpp
+++ b/src/gui/graphicsview/qgraphicstransform.cpp
@@ -267,6 +267,7 @@ void QGraphicsScale::setXScale(qreal scale)
         return;
     d->xScale = scale;
     update();
+    emit xScaleChanged();
     emit scaleChanged();
 }
 
@@ -293,6 +294,7 @@ void QGraphicsScale::setYScale(qreal scale)
         return;
     d->yScale = scale;
     update();
+    emit yScaleChanged();
     emit scaleChanged();
 }
 
@@ -319,6 +321,7 @@ void QGraphicsScale::setZScale(qreal scale)
         return;
     d->zScale = scale;
     update();
+    emit zScaleChanged();
     emit scaleChanged();
 }
 
diff --git a/src/gui/graphicsview/qgraphicstransform.h b/src/gui/graphicsview/qgraphicstransform.h
index 58b201a..d8c9654 100644
--- a/src/gui/graphicsview/qgraphicstransform.h
+++ b/src/gui/graphicsview/qgraphicstransform.h
@@ -85,9 +85,9 @@ class Q_GUI_EXPORT QGraphicsScale : public QGraphicsTransform
     Q_OBJECT
 
     Q_PROPERTY(QVector3D origin READ origin WRITE setOrigin NOTIFY originChanged)
-    Q_PROPERTY(qreal xScale READ xScale WRITE setXScale NOTIFY scaleChanged)
-    Q_PROPERTY(qreal yScale READ yScale WRITE setYScale NOTIFY scaleChanged)
-    Q_PROPERTY(qreal zScale READ zScale WRITE setZScale NOTIFY scaleChanged)
+    Q_PROPERTY(qreal xScale READ xScale WRITE setXScale NOTIFY xScaleChanged)
+    Q_PROPERTY(qreal yScale READ yScale WRITE setYScale NOTIFY yScaleChanged)
+    Q_PROPERTY(qreal zScale READ zScale WRITE setZScale NOTIFY zScaleChanged)
 public:
     QGraphicsScale(QObject *parent = 0);
     ~QGraphicsScale();
@@ -108,6 +108,9 @@ public:
 
 Q_SIGNALS:
     void originChanged();
+    void xScaleChanged();
+    void yScaleChanged();
+    void zScaleChanged();
     void scaleChanged();
 
 private: