Add missing notify signals for window title and icon changes.

Adds signals for changes to the window title, window icon and window
icon text.

Change-Id: Ia0ddcb94dda2c9ea790edc061d487765024191cd
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>

2 files changed, 39 insertions, 3 deletions

diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 5532b04b22..eea44300e8 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -5601,6 +5601,15 @@ void QWidgetPrivate::setWindowIconText_helper(const QString &title)
         setWindowIconText_sys(qt_setWindowTitle_helperHelper(title, q));
 }
 
+/*!
+    \fn void QWidget::windowIconTextChanged(const QString &iconText)
+
+    This signal is emitted when the window's icon text has changed, with the
+    new \a iconText as an argument.
+
+    \since 5.2
+*/
+
 void QWidget::setWindowIconText(const QString &iconText)
 {
     if (QWidget::windowIconText() == iconText)
@@ -5612,8 +5621,19 @@ void QWidget::setWindowIconText(const QString &iconText)
 
     QEvent e(QEvent::IconTextChange);
     QApplication::sendEvent(this, &e);
+
+    emit windowIconTextChanged(iconText);
 }
 
+/*!
+    \fn void QWidget::windowTitleChanged(const QString &title)
+
+    This signal is emitted when the window's title has changed, with the
+    new \a title as an argument.
+
+    \since 5.2
+*/
+
 void QWidget::setWindowTitle(const QString &title)
 {
     if (QWidget::windowTitle() == title && !title.isEmpty() && !title.isNull())
@@ -5625,6 +5645,8 @@ void QWidget::setWindowTitle(const QString &title)
 
     QEvent e(QEvent::WindowTitleChange);
     QApplication::sendEvent(this, &e);
+
+    emit windowTitleChanged(title);
 }
 
 
@@ -5661,6 +5683,15 @@ void QWidgetPrivate::setWindowIcon_helper()
     }
 }
 
+/*!
+    \fn void QWidget::windowIconChanged(const QIcon &icon)
+
+    This signal is emitted when the window's icon has changed, with the
+    new \a icon as an argument.
+
+    \since 5.2
+*/
+
 void QWidget::setWindowIcon(const QIcon &icon)
 {
     Q_D(QWidget);
@@ -5674,6 +5705,8 @@ void QWidget::setWindowIcon(const QIcon &icon)
 
     d->setWindowIcon_sys();
     d->setWindowIcon_helper();
+
+    emit windowIconChanged(icon);
 }
 
 
diff --git a/src/widgets/kernel/qwidget.h b/src/widgets/kernel/qwidget.h
index f579dbb9cd..a9eeaa5470 100644
--- a/src/widgets/kernel/qwidget.h
+++ b/src/widgets/kernel/qwidget.h
@@ -171,9 +171,9 @@ class Q_WIDGETS_EXPORT QWidget : public QObject, public QPaintDevice
     Q_PROPERTY(QSize sizeHint READ sizeHint)
     Q_PROPERTY(QSize minimumSizeHint READ minimumSizeHint)
     Q_PROPERTY(bool acceptDrops READ acceptDrops WRITE setAcceptDrops)
-    Q_PROPERTY(QString windowTitle READ windowTitle WRITE setWindowTitle DESIGNABLE isWindow)
-    Q_PROPERTY(QIcon windowIcon READ windowIcon WRITE setWindowIcon DESIGNABLE isWindow)
-    Q_PROPERTY(QString windowIconText READ windowIconText WRITE setWindowIconText DESIGNABLE isWindow)
+    Q_PROPERTY(QString windowTitle READ windowTitle WRITE setWindowTitle NOTIFY windowTitleChanged DESIGNABLE isWindow)
+    Q_PROPERTY(QIcon windowIcon READ windowIcon WRITE setWindowIcon NOTIFY windowIconChanged DESIGNABLE isWindow)
+    Q_PROPERTY(QString windowIconText READ windowIconText WRITE setWindowIconText NOTIFY windowIconTextChanged DESIGNABLE isWindow)
     Q_PROPERTY(double windowOpacity READ windowOpacity WRITE setWindowOpacity DESIGNABLE isWindow)
     Q_PROPERTY(bool windowModified READ isWindowModified WRITE setWindowModified DESIGNABLE isWindow)
 #ifndef QT_NO_TOOLTIP
@@ -599,6 +599,9 @@ public:
     friend class QDesktopScreenWidget;
 
 Q_SIGNALS:
+    void windowTitleChanged(const QString &title);
+    void windowIconChanged(const QIcon &icon);
+    void windowIconTextChanged(const QString &iconText);
     void customContextMenuRequested(const QPoint &pos);
 
 protected: