Add resize event support to QWindow.

(cherry picked from commit 12b4e7e5a2b18cdd23f540821e1f2785f62b0b9a)

2 files changed, 8 insertions, 0 deletions

diff --git a/examples/opengl/hellowindow/hellowindow.cpp b/examples/opengl/hellowindow/hellowindow.cpp
index 6de48e8c95..b0576c1255 100644
--- a/examples/opengl/hellowindow/hellowindow.cpp
+++ b/examples/opengl/hellowindow/hellowindow.cpp
@@ -34,6 +34,13 @@ void HelloWindow::mousePressEvent(QMouseEvent *)
     updateColor();
 }
 
+void HelloWindow::resizeEvent(QResizeEvent *)
+{
+    glContext()->makeCurrent();
+
+    glViewport(0, 0, geometry().width(), geometry().height());
+}
+
 void HelloWindow::updateColor()
 {
     float colors[][4] =
diff --git a/examples/opengl/hellowindow/hellowindow.h b/examples/opengl/hellowindow/hellowindow.h
index b0adecbb10..f0b8ee8b45 100644
--- a/examples/opengl/hellowindow/hellowindow.h
+++ b/examples/opengl/hellowindow/hellowindow.h
@@ -13,6 +13,7 @@ public:
 
 protected:
     void mousePressEvent(QMouseEvent *);
+    void resizeEvent(QResizeEvent *);
 
 private slots:
     void render();