Remove use of shared NOTIFY signals

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 cd813f93530512ffcedef6376e8c9266162c8714)

8 files changed, 79 insertions, 36 deletions

diff --git a/src/declarative/graphicsitems/qdeclarativeitem.cpp b/src/declarative/graphicsitems/qdeclarativeitem.cpp
index c80fc2f..2c295cd 100644
--- a/src/declarative/graphicsitems/qdeclarativeitem.cpp
+++ b/src/declarative/graphicsitems/qdeclarativeitem.cpp
@@ -511,8 +511,10 @@ QDeclarativeItem *QDeclarativeKeyNavigationAttached::left() const
 void QDeclarativeKeyNavigationAttached::setLeft(QDeclarativeItem *i)
 {
     Q_D(QDeclarativeKeyNavigationAttached);
+    if (d->left == i)
+        return;
     d->left = i;
-    emit changed();
+    emit leftChanged();
 }
 
 QDeclarativeItem *QDeclarativeKeyNavigationAttached::right() const
@@ -524,8 +526,10 @@ QDeclarativeItem *QDeclarativeKeyNavigationAttached::right() const
 void QDeclarativeKeyNavigationAttached::setRight(QDeclarativeItem *i)
 {
     Q_D(QDeclarativeKeyNavigationAttached);
+    if (d->right == i)
+        return;
     d->right = i;
-    emit changed();
+    emit rightChanged();
 }
 
 QDeclarativeItem *QDeclarativeKeyNavigationAttached::up() const
@@ -537,8 +541,10 @@ QDeclarativeItem *QDeclarativeKeyNavigationAttached::up() const
 void QDeclarativeKeyNavigationAttached::setUp(QDeclarativeItem *i)
 {
     Q_D(QDeclarativeKeyNavigationAttached);
+    if (d->up == i)
+        return;
     d->up = i;
-    emit changed();
+    emit upChanged();
 }
 
 QDeclarativeItem *QDeclarativeKeyNavigationAttached::down() const
@@ -550,8 +556,10 @@ QDeclarativeItem *QDeclarativeKeyNavigationAttached::down() const
 void QDeclarativeKeyNavigationAttached::setDown(QDeclarativeItem *i)
 {
     Q_D(QDeclarativeKeyNavigationAttached);
+    if (d->down == i)
+        return;
     d->down = i;
-    emit changed();
+    emit downChanged();
 }
 
 QDeclarativeItem *QDeclarativeKeyNavigationAttached::tab() const
@@ -563,8 +571,10 @@ QDeclarativeItem *QDeclarativeKeyNavigationAttached::tab() const
 void QDeclarativeKeyNavigationAttached::setTab(QDeclarativeItem *i)
 {
     Q_D(QDeclarativeKeyNavigationAttached);
+    if (d->tab == i)
+        return;
     d->tab = i;
-    emit changed();
+    emit tabChanged();
 }
 
 QDeclarativeItem *QDeclarativeKeyNavigationAttached::backtab() const
@@ -576,8 +586,10 @@ QDeclarativeItem *QDeclarativeKeyNavigationAttached::backtab() const
 void QDeclarativeKeyNavigationAttached::setBacktab(QDeclarativeItem *i)
 {
     Q_D(QDeclarativeKeyNavigationAttached);
+    if (d->backtab == i)
+        return;
     d->backtab = i;
-    emit changed();
+    emit backtabChanged();
 }
 
 /*!
diff --git a/src/declarative/graphicsitems/qdeclarativeitem_p.h b/src/declarative/graphicsitems/qdeclarativeitem_p.h
index 8c3e084..fffb4f7 100644
--- a/src/declarative/graphicsitems/qdeclarativeitem_p.h
+++ b/src/declarative/graphicsitems/qdeclarativeitem_p.h
@@ -363,12 +363,12 @@ class QDeclarativeKeyNavigationAttached : public QObject, public QDeclarativeIte
     Q_OBJECT
     Q_DECLARE_PRIVATE(QDeclarativeKeyNavigationAttached)
 
-    Q_PROPERTY(QDeclarativeItem *left READ left WRITE setLeft NOTIFY changed)
-    Q_PROPERTY(QDeclarativeItem *right READ right WRITE setRight NOTIFY changed)
-    Q_PROPERTY(QDeclarativeItem *up READ up WRITE setUp NOTIFY changed)
-    Q_PROPERTY(QDeclarativeItem *down READ down WRITE setDown NOTIFY changed)
-    Q_PROPERTY(QDeclarativeItem *tab READ tab WRITE setTab NOTIFY changed)
-    Q_PROPERTY(QDeclarativeItem *backtab READ backtab WRITE setBacktab NOTIFY changed)
+    Q_PROPERTY(QDeclarativeItem *left READ left WRITE setLeft NOTIFY leftChanged)
+    Q_PROPERTY(QDeclarativeItem *right READ right WRITE setRight NOTIFY rightChanged)
+    Q_PROPERTY(QDeclarativeItem *up READ up WRITE setUp NOTIFY upChanged)
+    Q_PROPERTY(QDeclarativeItem *down READ down WRITE setDown NOTIFY downChanged)
+    Q_PROPERTY(QDeclarativeItem *tab READ tab WRITE setTab NOTIFY tabChanged)
+    Q_PROPERTY(QDeclarativeItem *backtab READ backtab WRITE setBacktab NOTIFY backtabChanged)
     Q_PROPERTY(Priority priority READ priority WRITE setPriority NOTIFY priorityChanged)
 
     Q_ENUMS(Priority)
@@ -396,7 +396,12 @@ public:
     static QDeclarativeKeyNavigationAttached *qmlAttachedProperties(QObject *);
 
 Q_SIGNALS:
-    void changed();
+    void leftChanged();
+    void rightChanged();
+    void upChanged();
+    void downChanged();
+    void tabChanged();
+    void backtabChanged();
     void priorityChanged();
 
 private:
diff --git a/src/declarative/graphicsitems/qdeclarativelistview.cpp b/src/declarative/graphicsitems/qdeclarativelistview.cpp
index 8b616ce..b3e1dc0 100644
--- a/src/declarative/graphicsitems/qdeclarativelistview.cpp
+++ b/src/declarative/graphicsitems/qdeclarativelistview.cpp
@@ -60,7 +60,7 @@ void QDeclarativeViewSection::setProperty(const QString &property)
 {
     if (property != m_property) {
         m_property = property;
-        emit changed();
+        emit propertyChanged();
     }
 }
 
@@ -68,7 +68,7 @@ void QDeclarativeViewSection::setCriteria(QDeclarativeViewSection::SectionCriter
 {
     if (criteria != m_criteria) {
         m_criteria = criteria;
-        emit changed();
+        emit criteriaChanged();
     }
 }
 
diff --git a/src/declarative/graphicsitems/qdeclarativelistview_p.h b/src/declarative/graphicsitems/qdeclarativelistview_p.h
index 9941040..b264861 100644
--- a/src/declarative/graphicsitems/qdeclarativelistview_p.h
+++ b/src/declarative/graphicsitems/qdeclarativelistview_p.h
@@ -53,8 +53,8 @@ QT_MODULE(Declarative)
 class Q_AUTOTEST_EXPORT QDeclarativeViewSection : public QObject
 {
     Q_OBJECT
-    Q_PROPERTY(QString property READ property WRITE setProperty NOTIFY changed)
-    Q_PROPERTY(SectionCriteria criteria READ criteria WRITE setCriteria NOTIFY changed)
+    Q_PROPERTY(QString property READ property WRITE setProperty NOTIFY propertyChanged)
+    Q_PROPERTY(SectionCriteria criteria READ criteria WRITE setCriteria NOTIFY criteriaChanged)
     Q_PROPERTY(QDeclarativeComponent *delegate READ delegate WRITE setDelegate NOTIFY delegateChanged)
     Q_ENUMS(SectionCriteria)
 public:
@@ -73,7 +73,8 @@ public:
     QString sectionString(const QString &value);
 
 Q_SIGNALS:
-    void changed();
+    void propertyChanged();
+    void criteriaChanged();
     void delegateChanged();
 
 private:
diff --git a/src/declarative/graphicsitems/qdeclarativepath.cpp b/src/declarative/graphicsitems/qdeclarativepath.cpp
index 80196a1..c48011d3 100644
--- a/src/declarative/graphicsitems/qdeclarativepath.cpp
+++ b/src/declarative/graphicsitems/qdeclarativepath.cpp
@@ -474,6 +474,7 @@ void QDeclarativeCurve::setX(qreal x)
 {
     if (_x != x) {
         _x = x;
+        emit xChanged();
         emit changed();
     }
 }
@@ -487,6 +488,7 @@ void QDeclarativeCurve::setY(qreal y)
 {
     if (_y != y) {
         _y = y;
+        emit yChanged();
         emit changed();
     }
 }
@@ -576,6 +578,7 @@ void QDeclarativePathAttribute::setValue(qreal value)
 {
     if (_value != value) {
         _value = value;
+        emit valueChanged();
         emit changed();
     }
 }
@@ -678,6 +681,7 @@ void QDeclarativePathQuad::setControlX(qreal x)
 {
     if (_controlX != x) {
         _controlX = x;
+        emit controlXChanged();
         emit changed();
     }
 }
@@ -695,6 +699,7 @@ void QDeclarativePathQuad::setControlY(qreal y)
 {
     if (_controlY != y) {
         _controlY = y;
+        emit controlYChanged();
         emit changed();
     }
 }
@@ -761,6 +766,7 @@ void QDeclarativePathCubic::setControl1X(qreal x)
 {
     if (_control1X != x) {
         _control1X = x;
+        emit control1XChanged();
         emit changed();
     }
 }
@@ -774,6 +780,7 @@ void QDeclarativePathCubic::setControl1Y(qreal y)
 {
     if (_control1Y != y) {
         _control1Y = y;
+        emit control1YChanged();
         emit changed();
     }
 }
@@ -793,6 +800,7 @@ void QDeclarativePathCubic::setControl2X(qreal x)
 {
     if (_control2X != x) {
         _control2X = x;
+        emit control2XChanged();
         emit changed();
     }
 }
@@ -806,6 +814,7 @@ void QDeclarativePathCubic::setControl2Y(qreal y)
 {
     if (_control2Y != y) {
         _control2Y = y;
+        emit control2YChanged();
         emit changed();
     }
 }
diff --git a/src/declarative/graphicsitems/qdeclarativepath_p.h b/src/declarative/graphicsitems/qdeclarativepath_p.h
index 001bcdf..5ab5cfd 100644
--- a/src/declarative/graphicsitems/qdeclarativepath_p.h
+++ b/src/declarative/graphicsitems/qdeclarativepath_p.h
@@ -68,7 +68,7 @@ class Q_AUTOTEST_EXPORT QDeclarativePathAttribute : public QDeclarativePathEleme
     Q_OBJECT
 
     Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged)
-    Q_PROPERTY(qreal value READ value WRITE setValue NOTIFY changed)
+    Q_PROPERTY(qreal value READ value WRITE setValue NOTIFY valueChanged)
 public:
     QDeclarativePathAttribute(QObject *parent=0) : QDeclarativePathElement(parent), _value(0) {}
 
@@ -81,6 +81,7 @@ public:
 
 Q_SIGNALS:
     void nameChanged();
+    void valueChanged();
 
 private:
     QString _name;
@@ -91,8 +92,8 @@ class Q_AUTOTEST_EXPORT QDeclarativeCurve : public QDeclarativePathElement
 {
     Q_OBJECT
 
-    Q_PROPERTY(qreal x READ x WRITE setX NOTIFY changed)
-    Q_PROPERTY(qreal y READ y WRITE setY NOTIFY changed)
+    Q_PROPERTY(qreal x READ x WRITE setX NOTIFY xChanged)
+    Q_PROPERTY(qreal y READ y WRITE setY NOTIFY yChanged)
 public:
     QDeclarativeCurve(QObject *parent=0) : QDeclarativePathElement(parent), _x(0), _y(0) {}
 
@@ -104,6 +105,10 @@ public:
 
     virtual void addToPath(QPainterPath &) {}
 
+Q_SIGNALS:
+    void xChanged();
+    void yChanged();
+
 private:
     qreal _x;
     qreal _y;
@@ -122,8 +127,8 @@ class Q_AUTOTEST_EXPORT QDeclarativePathQuad : public QDeclarativeCurve
 {
     Q_OBJECT
 
-    Q_PROPERTY(qreal controlX READ controlX WRITE setControlX NOTIFY changed)
-    Q_PROPERTY(qreal controlY READ controlY WRITE setControlY NOTIFY changed)
+    Q_PROPERTY(qreal controlX READ controlX WRITE setControlX NOTIFY controlXChanged)
+    Q_PROPERTY(qreal controlY READ controlY WRITE setControlY NOTIFY controlYChanged)
 public:
     QDeclarativePathQuad(QObject *parent=0) : QDeclarativeCurve(parent), _controlX(0), _controlY(0) {}
 
@@ -135,6 +140,10 @@ public:
 
     void addToPath(QPainterPath &path);
 
+Q_SIGNALS:
+    void controlXChanged();
+    void controlYChanged();
+
 private:
     qreal _controlX;
     qreal _controlY;
@@ -144,10 +153,10 @@ class Q_AUTOTEST_EXPORT QDeclarativePathCubic : public QDeclarativeCurve
 {
     Q_OBJECT
 
-    Q_PROPERTY(qreal control1X READ control1X WRITE setControl1X NOTIFY changed)
-    Q_PROPERTY(qreal control1Y READ control1Y WRITE setControl1Y NOTIFY changed)
-    Q_PROPERTY(qreal control2X READ control2X WRITE setControl2X NOTIFY changed)
-    Q_PROPERTY(qreal control2Y READ control2Y WRITE setControl2Y NOTIFY changed)
+    Q_PROPERTY(qreal control1X READ control1X WRITE setControl1X NOTIFY control1XChanged)
+    Q_PROPERTY(qreal control1Y READ control1Y WRITE setControl1Y NOTIFY control1YChanged)
+    Q_PROPERTY(qreal control2X READ control2X WRITE setControl2X NOTIFY control2XChanged)
+    Q_PROPERTY(qreal control2Y READ control2Y WRITE setControl2Y NOTIFY control2YChanged)
 public:
     QDeclarativePathCubic(QObject *parent=0) : QDeclarativeCurve(parent), _control1X(0), _control1Y(0), _control2X(0), _control2Y(0) {}
 
@@ -165,11 +174,17 @@ public:
 
     void addToPath(QPainterPath &path);
 
+Q_SIGNALS:
+    void control1XChanged();
+    void control1YChanged();
+    void control2XChanged();
+    void control2YChanged();
+
 private:
-    int _control1X;
-    int _control1Y;
-    int _control2X;
-    int _control2Y;
+    qreal _control1X;
+    qreal _control1Y;
+    qreal _control2X;
+    qreal _control2Y;
 };
 
 class Q_AUTOTEST_EXPORT QDeclarativePathPercent : public QDeclarativePathElement
diff --git a/src/declarative/graphicsitems/qdeclarativetranslate.cpp b/src/declarative/graphicsitems/qdeclarativetranslate.cpp
index 16a1127..be9b3f3 100644
--- a/src/declarative/graphicsitems/qdeclarativetranslate.cpp
+++ b/src/declarative/graphicsitems/qdeclarativetranslate.cpp
@@ -90,7 +90,7 @@ void QDeclarativeTranslate::setX(qreal x)
         return;
     d->x = x;
     update();
-    emit positionChanged();
+    emit xChanged();
 }
 
 /*!
@@ -113,7 +113,7 @@ void QDeclarativeTranslate::setY(qreal y)
         return;
     d->y = y;
     update();
-    emit positionChanged();
+    emit yChanged();
 }
 
 /*!
diff --git a/src/declarative/graphicsitems/qdeclarativetranslate_p.h b/src/declarative/graphicsitems/qdeclarativetranslate_p.h
index 0207dce..b871518 100644
--- a/src/declarative/graphicsitems/qdeclarativetranslate_p.h
+++ b/src/declarative/graphicsitems/qdeclarativetranslate_p.h
@@ -56,8 +56,8 @@ class Q_AUTOTEST_EXPORT QDeclarativeTranslate : public QGraphicsTransform
 {
     Q_OBJECT
 
-    Q_PROPERTY(qreal x READ x WRITE setX NOTIFY positionChanged)
-    Q_PROPERTY(qreal y READ y WRITE setY NOTIFY positionChanged)
+    Q_PROPERTY(qreal x READ x WRITE setX NOTIFY xChanged)
+    Q_PROPERTY(qreal y READ y WRITE setY NOTIFY yChanged)
 
 public:
     QDeclarativeTranslate(QObject *parent = 0);
@@ -72,7 +72,8 @@ public:
     void applyTo(QMatrix4x4 *matrix) const;
 
 Q_SIGNALS:
-    void positionChanged();
+    void xChanged();
+    void yChanged();
 
 private:
     Q_DECLARE_PRIVATE(QDeclarativeTranslate)