hellogl now runs on QT_OPENGL_ES_1 (ie N95).

effort to have examples show portable GL code continues.  One #ifdef
in whole example and it now runs on N95 and desktop.

Reviewed-by: Rhys Weatherley

4 files changed, 28 insertions, 5 deletions

diff --git a/examples/opengl/hellogl/glwidget.cpp b/examples/opengl/hellogl/glwidget.cpp
index 282f21f..ffb3b15 100644
--- a/examples/opengl/hellogl/glwidget.cpp
+++ b/examples/opengl/hellogl/glwidget.cpp
@@ -150,10 +150,10 @@ void GLWidget::paintGL()
 {
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
     glLoadIdentity();
-    glTranslated(0.0, 0.0, -10.0);
-    glRotated(xRot / 16.0, 1.0, 0.0, 0.0);
-    glRotated(yRot / 16.0, 0.0, 1.0, 0.0);
-    glRotated(zRot / 16.0, 0.0, 0.0, 1.0);
+    glTranslatef(0.0, 0.0, -10.0);
+    glRotatef(xRot / 16.0, 1.0, 0.0, 0.0);
+    glRotatef(yRot / 16.0, 0.0, 1.0, 0.0);
+    glRotatef(zRot / 16.0, 0.0, 0.0, 1.0);
     logo->draw();
 }
 //! [7]
@@ -166,7 +166,11 @@ void GLWidget::resizeGL(int width, int height)
 
     glMatrixMode(GL_PROJECTION);
     glLoadIdentity();
+#ifdef QT_OPENGL_ES_1
+    glOrthof(-0.5, +0.5, -0.5, +0.5, 4.0, 15.0);
+#else
     glOrtho(-0.5, +0.5, -0.5, +0.5, 4.0, 15.0);
+#endif
     glMatrixMode(GL_MODELVIEW);
 }
 //! [8]
diff --git a/examples/opengl/hellogl/main.cpp b/examples/opengl/hellogl/main.cpp
index e645dba..f610b3b 100644
--- a/examples/opengl/hellogl/main.cpp
+++ b/examples/opengl/hellogl/main.cpp
@@ -40,6 +40,7 @@
 ****************************************************************************/
 
 #include <QApplication>
+#include <QDesktopWidget>
 
 #include "window.h"
 
@@ -47,6 +48,13 @@ int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
     Window window;
-    window.show();
+    window.resize(window.sizeHint());
+    int desktopArea = QApplication::desktop()->width() *
+                     QApplication::desktop()->height();
+    int widgetArea = window.width() * window.height();
+    if (((float)widgetArea / (float)desktopArea) < 0.75f)
+        window.show();
+    else
+        window.showMaximized();
     return app.exec();
 }
diff --git a/examples/opengl/hellogl/window.cpp b/examples/opengl/hellogl/window.cpp
index 2b06b9c..19a8aac 100644
--- a/examples/opengl/hellogl/window.cpp
+++ b/examples/opengl/hellogl/window.cpp
@@ -88,3 +88,11 @@ QSlider *Window::createSlider()
     return slider;
 }
 //! [2]
+
+void Window::keyPressEvent(QKeyEvent *e)
+{
+    if (e->key() == Qt::Key_Escape)
+        close();
+    else
+        QWidget::keyPressEvent(e);
+}
diff --git a/examples/opengl/hellogl/window.h b/examples/opengl/hellogl/window.h
index 7269a05..4cfd31b 100644
--- a/examples/opengl/hellogl/window.h
+++ b/examples/opengl/hellogl/window.h
@@ -57,6 +57,9 @@ class Window : public QWidget
 public:
     Window();
 
+protected:
+    void keyPressEvent(QKeyEvent *event);
+
 private:
     QSlider *createSlider();