Added QToolBar::visibilityChanged(bool) signal.

Reviewed-By: Thierry

3 files changed, 41 insertions, 0 deletions

diff --git a/src/gui/widgets/qtoolbar.cpp b/src/gui/widgets/qtoolbar.cpp
index 58a3d28..47c4698 100644
--- a/src/gui/widgets/qtoolbar.cpp
+++ b/src/gui/widgets/qtoolbar.cpp
@@ -534,6 +534,14 @@ void QToolBarPrivate::plug(const QRect &r)
 
 
 /*!
+    \fn void QToolBar::visibilityChanged(bool visible)
+    \since 4.7
+
+    This signal is emitted when the toolbar becomes \a visible (or
+    invisible). This happens when the widget is hidden or shown.
+*/
+
+/*!
     Constructs a QToolBar with the given \a parent.
 */
 QToolBar::QToolBar(QWidget *parent)
@@ -1123,6 +1131,7 @@ bool QToolBar::event(QEvent *event)
         // fallthrough intended
     case QEvent::Show:
         d->toggleViewAction->setChecked(event->type() == QEvent::Show);
+        emit visibilityChanged(event->type() == QEvent::Show);
 #if defined(Q_WS_MAC)
         if (toolbarInUnifiedToolBar(this)) {
              // I can static_cast because I did the qobject_cast in the if above, therefore
diff --git a/src/gui/widgets/qtoolbar.h b/src/gui/widgets/qtoolbar.h
index a1a24f0..9712637 100644
--- a/src/gui/widgets/qtoolbar.h
+++ b/src/gui/widgets/qtoolbar.h
@@ -143,6 +143,7 @@ Q_SIGNALS:
     void iconSizeChanged(const QSize &iconSize);
     void toolButtonStyleChanged(Qt::ToolButtonStyle toolButtonStyle);
     void topLevelChanged(bool topLevel);
+    void visibilityChanged(bool visible);
 
 protected:
     void actionEvent(QActionEvent *event);
diff --git a/tests/auto/qtoolbar/tst_qtoolbar.cpp b/tests/auto/qtoolbar/tst_qtoolbar.cpp
index ac86fd9..93dfca5 100644
--- a/tests/auto/qtoolbar/tst_qtoolbar.cpp
+++ b/tests/auto/qtoolbar/tst_qtoolbar.cpp
@@ -102,6 +102,7 @@ private slots:
     void orientationChanged();
     void iconSizeChanged();
     void toolButtonStyleChanged();
+    void visibilityChanged();
     void actionOwnership();
     void widgetAction();
     void accel();
@@ -998,6 +999,36 @@ void tst_QToolBar::iconSizeChanged()
 void tst_QToolBar::toolButtonStyleChanged()
 { DEPENDS_ON("toolButtonStyle()"); }
 
+void tst_QToolBar::visibilityChanged()
+{
+    QMainWindow mw;
+    QToolBar tb;
+    QSignalSpy spy(&tb, SIGNAL(visibilityChanged(bool)));
+
+    mw.addToolBar(&tb);
+    mw.show();
+
+    QCOMPARE(spy.count(), 1);
+    QCOMPARE(spy.at(0).at(0).toBool(), true);
+    spy.clear();
+
+    tb.hide();
+    QCOMPARE(spy.count(), 1);
+    QCOMPARE(spy.at(0).at(0).toBool(), false);
+    spy.clear();
+
+    tb.hide();
+    QCOMPARE(spy.count(), 0);
+
+    tb.show();
+    QCOMPARE(spy.count(), 1);
+    QCOMPARE(spy.at(0).at(0).toBool(), true);
+    spy.clear();
+
+    tb.show();
+    QCOMPARE(spy.count(), 0);
+}
+
 void tst_QToolBar::actionOwnership()
 {
     {