qglbaseviewport.h

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// RioEngine: The late night Coke -without whores- debugging sessions
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// www.leopoldolomas.info
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#ifndef RIOENGINE_EDITOR_QGLBASEVIEWPORT_QGBASEVIEWPORT_H_
#define RIOENGINE_EDITOR_QGLBASEVIEWPORT_QGBASEVIEWPORT_H_

#include <QGLWidget>
#include "bullet/matrix/matrices.h"

class QGLShaderProgram;

class QGLBaseViewport : public QGLWidget {
    Q_OBJECT
public:
    enum QGLViewportDrawMode { WIRED, SOLID, TEXTURED };

    QGLBaseViewport(QWidget* parent, QGLWidget* shared_widget);

    QGLViewportDrawMode drawMode() const;
    void setDrawMode(const QGLViewportDrawMode &value);

    bool hasFocus() const;

    virtual void preDraw();
    virtual void paintGL();
    virtual void step();
    virtual void customDraw();
    virtual void postDraw();

    ~QGLBaseViewport();

protected:
    void recalculateAspectRatio();

    virtual void initializeGL();
    virtual void resizeGL(int, int);

    void mousePressEvent(QMouseEvent *event);

    virtual void focusInEvent(QFocusEvent*);
    virtual void focusOutEvent(QFocusEvent*);

    GLdouble m_projectionRatio;
    QPoint   m_lastPos;
    QColor   m_clearColor;
    Matrix4  m_modelViewMatrix;

    QGLShaderProgram *m_selectedProgram;
    QGLShaderProgram *m_texturedProgram;
    QGLShaderProgram *m_solidColorsProgram;

private:
    void setHasFocus(bool);

    bool     m_hasFocus;
    GLdouble projectionFovYAngle;
    GLdouble projectionZNear;
    GLdouble projectionZFar;

    QGLViewportDrawMode m_drawMode;
};

#endif  // RIOENGINE_EDITOR_QGLBASEVIEWPORT_QGBASEVIEWPORT_H_