Avoid window geometry jittering when changing geometry from JavaScript

The QML API allowed only separate setting of geometry parameters which
causes flickering when all parameters need to be changed.
By exposing the setGeometry function it is possible to set all of these
at once using an imperative setGeometry call from JavaScript.

Note that bindings for x/y/width/height are still evaluated
sequentially, resulting in four calls to the platform window's
setGeometry. This patch only introduces an imperative workaround for
that issue.

Change-Id: Ie9b0d3c39434740e50757ba7cff0385ae80f47f4
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gui/kernel/qwindow.h b/src/gui/kernel/qwindow.h
index 4a874caacb..44ff054fa3 100644
--- a/src/gui/kernel/qwindow.h
+++ b/src/gui/kernel/qwindow.h
@@ -218,8 +218,6 @@ public:
     void setBaseSize(const QSize &size);
     void setSizeIncrement(const QSize &size);
 
-    void setGeometry(int posx, int posy, int w, int h);
-    void setGeometry(const QRect &rect);
     QRect geometry() const;
 
     QMargins frameMargins() const;
@@ -300,6 +298,8 @@ public Q_SLOTS:
     void setY(int arg);
     void setWidth(int arg);
     void setHeight(int arg);
+    void setGeometry(int posx, int posy, int w, int h);
+    void setGeometry(const QRect &rect);
 
     void setMinimumWidth(int w);
     void setMinimumHeight(int h);