Made QWindow::currentOrientation() a property.

To match the previous QWindow::orientation() property which can be
useful to access from QML. Also, removed the automatic translation of
Qt::PrimaryOrientation to QScreen::primaryOrientation() on the QWindow
level, as it leads to a lot of complexity regarding the
QWindow::contentOrientationChanged() signal, and makes it hard to
distinguish between the case where the window's orientation follows
that of the screen, and the case where the orientation just happens to
be set to that of the screen.

Change-Id: I6950d1337b7f929815eff1328181855090d8066b
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>

3 files changed, 13 insertions, 5 deletions

diff --git a/src/gui/kernel/qscreen.cpp b/src/gui/kernel/qscreen.cpp
index 43c2dcc50d..d8413d5cb2 100644
--- a/src/gui/kernel/qscreen.cpp
+++ b/src/gui/kernel/qscreen.cpp
@@ -351,6 +351,8 @@ QRect QScreen::availableVirtualGeometry() const
     will change based on the device is being held, and a desktop display
     might be rotated so that it's in portrait mode.
 
+    Qt::PrimaryOrientation is never returned.
+
     \sa primaryOrientation(), orientationChanged()
 */
 Qt::ScreenOrientation QScreen::orientation() const
diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index 65ac5f1539..5bab203abc 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -411,24 +411,26 @@ bool QWindow::isActive() const
 void QWindow::reportContentOrientationChange(Qt::ScreenOrientation orientation)
 {
     Q_D(QWindow);
+    if (d->contentOrientation == orientation)
+        return;
     if (!d->platformWindow)
         create();
     Q_ASSERT(d->platformWindow);
     d->contentOrientation = orientation;
     d->platformWindow->handleContentOrientationChange(orientation);
+    emit contentOrientationChanged(orientation);
 }
 
 /*!
   Returns the actual content orientation.
 
-  This is the last value set with reportContentOrientationChange(),
-  except Qt::PrimaryOrientation gets converted to the screen's
-  primary orientation.
+  This is the last value set with reportContentOrientationChange(). It defaults
+  to Qt::PrimaryOrientation.
 */
 Qt::ScreenOrientation QWindow::contentOrientation() const
 {
     Q_D(const QWindow);
-    return d->contentOrientation == Qt::PrimaryOrientation ? screen()->primaryOrientation() : d->contentOrientation;
+    return d->contentOrientation;
 }
 
 /*!
@@ -461,12 +463,14 @@ bool QWindow::requestWindowOrientation(Qt::ScreenOrientation orientation)
 /*!
   Returns the actual window orientation.
 
+  The default value is Qt::PrimaryOrientation.
+
   \sa requestWindowOrientation()
 */
 Qt::ScreenOrientation QWindow::windowOrientation() const
 {
     Q_D(const QWindow);
-    return d->windowOrientation == Qt::PrimaryOrientation ? screen()->primaryOrientation() : d->windowOrientation;
+    return d->windowOrientation;
 }
 
 Qt::WindowState QWindow::windowState() const
diff --git a/src/gui/kernel/qwindow.h b/src/gui/kernel/qwindow.h
index 1de5105b1c..be0ca99b8b 100644
--- a/src/gui/kernel/qwindow.h
+++ b/src/gui/kernel/qwindow.h
@@ -90,6 +90,7 @@ class Q_GUI_EXPORT QWindow : public QObject, public QSurface
     Q_PROPERTY(int width READ width WRITE setWidth NOTIFY widthChanged)
     Q_PROPERTY(int height READ height WRITE setHeight NOTIFY heightChanged)
     Q_PROPERTY(bool visible READ visible WRITE setVisible NOTIFY visibleChanged)
+    Q_PROPERTY(Qt::ScreenOrientation contentOrientation READ contentOrientation WRITE reportContentOrientationChange NOTIFY contentOrientationChanged)
 
 public:
     enum SurfaceType { RasterSurface, OpenGLSurface };
@@ -259,6 +260,7 @@ Q_SIGNALS:
     void heightChanged(int arg);
 
     void visibleChanged(bool arg);
+    void contentOrientationChanged(Qt::ScreenOrientation orientation);
 
 private Q_SLOTS:
     void screenDestroyed(QObject *screen);