GLDisplayListWidget.h

#include "GLDriverQt.h"
#include <QGLWidget>
#ifndef GLDisplayListWidget_H
#define GLDisplayListWidget_H

/*! 
    \class GLDisplayListWidget
        \brief This class implements an Qt based OpenGL widget that renders
        UCdriver and UCdriverEx graphics calls.

    This class is derived from QGLWidget. See the Qt reference guide for information
    about member functions associated with QGLwidget. 
     
    <p>
    The UCdriver (UCdriverEx) interface is provided by an internal
    instance of a GLDriverQt. Access to this interface is through
    a pointer obtained with the getGLDriverQtPtr() member function.

    Sample Code Fragment:
\code
//   Instantiate a GLDisplayListWidget in the containing window constructor 

     glWidget = new GLDisplayListWidget;     

//
//   Elsewhere in containing window class (typically in a response function)
//   capture the GLDriverQt pointer. 
//
     GLDriverQt* Gldriver = glWidget->getGLDriverQtPtr(); 

//   Use the  start() to open up a GL display list and then create
//   graphics by calling UCdriver or UCdriverEx methods. Close
//   the list and induce a repaint of glWidget by calling frame(). 

     Gldriver->start();
     
     Gldriver->point(...);          //           
     Gldriver->lines(...);          // UCdriver or UCdriverEx calls
     Gldriver->pointEx(...);        //

     Gldriver->frame();
 
\endcode

<i>Source</i>: 
<A HREF="../GLDisplayListWidget.h">GLDisplayListWidget.h</A>, 
<A HREF="../GLDisplayListWidget.cpp">GLDisplayListWidget.cpp</A><p>

@author Chris Anderson (C) UCLA 2007-09 
@version 2/16/09 
*/

class GLDisplayListWidget : public QGLWidget
{
    Q_OBJECT

public:
    GLDisplayListWidget(QWidget *parent = 0);
    ~GLDisplayListWidget();

    QSize minimumSizeHint() const;
    QSize sizeHint() const;
    
    GLDriverQt* getGLDriverQtPtr(){return &Gldriver;}


public slots:
    void setXRotation(int angle);
    void setYRotation(int angle);
    void setZRotation(int angle);

protected:

    void initializeGL();
    void paintGL(); 
    void resizeGL(int width, int height);
    void mousePressEvent(QMouseEvent *event);
    void mouseMoveEvent(QMouseEvent *event);

private:

    GLDriverQt Gldriver;
    void normalizeAngle(int *angle);
  

    int xRot;
    int yRot;
    int zRot;
    
    QPoint lastPos;
    
};

#endif

---