glwidget.h

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/******************************************************************************
 *
 * MantaFlow fluid solver framework
 * Copyright 2011 Tobias Pfaff, Nils Thuerey 
 *
 * This program is free software, distributed under the terms of the
 * GNU General Public License (GPL) 
 * http://www.gnu.org/licenses
 *
 * QT OpenGL widget
 *
 ******************************************************************************/

#ifndef _GLWIDGET_H__
#define _GLWIDGET_H__

#include <QGLWidget>
#include <QtOpenGL>
#include "vectorbase.h"

namespace Manta {
    
class GLWidget : public QGLWidget {
Q_OBJECT

public:
    GLWidget(QWidget *parent = NULL);
    ~GLWidget();
    
    QSize minimumSizeHint() const;
    QSize sizeHint() const;
     
    void mousePressEvent(QMouseEvent *e);
    void mouseMoveEvent(QMouseEvent *e);
    void mouseReleaseEvent(QMouseEvent *e);
    void wheelEvent(QWheelEvent *e);     
    void screenshot(QString file);

    void setCamPos(Vec3 pos) { mCamPos = pos; }
    void setCamRot(Vec3 pos) { mRotX = pos.x; mRotY = pos.y; }

public slots:
    void setViewport(const Vec3i& gridsize);
    void keyPressEvent(QKeyEvent* e);
    void keyReleaseEvent(QKeyEvent* e);
    void windowSize(int w, int h);
     
signals:
    void paintSub();
    void clickLine(QPoint pos, float p0, float p1,float p2, float q0, float q1, float q2);
    void painterEvent(int e, int param=0);
     
protected:
    bool keyProcess(int key, int mod, bool down);
    void timerEvent(QTimerEvent* e);
    void initializeGL();
    void resizeGL(int w, int h);
    void paintGL();
    void updatePlane(int plane);
    
    enum MoveDir { None = 0, MoveLeft, MoveRight, MoveUp, MoveDown, MoveIn, MoveOut, MoveDirNum };
    
    bool  mMoveState[MoveDirNum];
    bool  mMoveFast;
    QPoint mAnchor, mDownPos;
    Vec3  mCamPos;
    float mRotX, mRotY;
    Vec3i mGridsize;
    int   mPlaneDim, mPlane;
    
    int   mScreenshotNumber;
    int   mWidth, mHeight;
};

} // namespace

#endif