graphics_qt5 QML: Add screen rotation support (#255)R7550

Now the QML qt5 graphics happily rotates according to screen
orientation. At least on Sailfish. Should do on other QML hardware as
well. Hard to test, as PC's usually don't have screen rotation support.

1 files changed, 28 insertions, 9 deletions

diff --git a/navit/graphics/qt5/loader.qml b/navit/graphics/qt5/loader.qml
index 6901c2c6f..ed9425bf7 100644
--- a/navit/graphics/qt5/loader.qml
+++ b/navit/graphics/qt5/loader.qml
@@ -4,17 +4,36 @@ import QtQuick.Window 2.0
 
 Window {
    width: 200; height: 200
-
-   Loader {
-       id: navit_loader
-       focus: true
-       source: "graphics_qt5.qml"
-       anchors.fill: parent
-       objectName: "navit_loader"
-   }
+    
+   Screen.orientationUpdateMask: Qt.PortraitOrientation + Qt.LandscapeOrientation + Qt.InvertedPortraitOrientation + Qt.InvertedLandscapeOrientation
 
    Item {
-       id: root_item
+       id: root
        anchors.fill: parent
+       Loader {
+           width: root.width
+	   height: root.height
+	   anchors.centerIn: parent
+	   Screen.onOrientationChanged: {
+	       rotation = Screen.angleBetween(Screen.orientation , Screen.primaryOrientation)
+	       switch(Screen.angleBetween(Screen.orientation , Screen.primaryOrientation))
+	       {
+	           case 0:
+		   case 180:
+		       width = root.width
+		       height = root.height
+		   break
+		   case 90:
+		   case 270:
+		   width = root.height
+		   height = root.width
+		   break
+	       }
+           }
+           id: navit_loader
+           focus: true
+           source: "graphics_qt5.qml"
+           objectName: "navit_loader"
+       }
    }
 }