Hi all,

What should I do to speed up the resizing performance?
Qt Code: 
  1. #include <QApplication>
  2. #include <QGLWidget>
  3. #include <QMainWindow>
  4. #include <QSplitter>
  5. #include <QTextEdit>
  6.  
  7. class GLWidget : public QGLWidget
  8. {
  9. public:
  10.     GLWidget(QWidget *parent = 0) : QGLWidget(parent) {}
  11.     GLWidget(const QGLFormat &format, QWidget *parent = 0, const QGLWidget *shareWidget = 0, Qt::WindowFlags f = 0) :
  12.     QGLWidget(format, parent, shareWidget, f){}
  13.  
  14. protected:
  15.     virtual void paintGL();
  16.     virtual void resizeGL(int, int)  { }
  17. };
  18.  
  19. void GLWidget :: paintGL()
  20. {
  21.  
  22.     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);  
  23.     glLoadIdentity();            
  24.  
  25.     glTranslatef(0.5f,0.5f,0.0f);
  26.  
  27.     glBegin(GL_QUADS);                      	
  28.         glVertex3f(-1.0f, 1.0f, 0.0f);         
  29.         glVertex3f( 1.0f, 1.0f, 0.0f);         
  30.         glVertex3f( 1.0f,-1.0f, 0.0f);         
  31.         glVertex3f(-1.0f,-1.0f, 0.0f);         
  32.     glEnd();
  33. }
  34.  
  35. int main(int argc, char **argv)
  36. {
  37.     QApplication app(argc, argv);
  38.  
  39.     QMainWindow mainwindow;
  40.  
  41.     mainwindow.setFixedSize(1000,600);	
  42.  
  43.     QSplitter *splitter = new QSplitter(Qt::Horizontal);
  44.     splitter->addWidget(new QTextEdit());     
  45.     splitter->addWidget(new GLWidget());
  46.  
  47.     mainwindow.setCentralWidget(splitter);
  48.  
  49.     mainwindow.show();
  50.  
  51.     return app.exec();  
  52. }
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Thanks in advance.

Cheers,
Faizol