VizWin.h

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//************************************************************************
//                                  *
//           Copyright (C)  2013                *
//     University Corporation for Atmospheric Research          *
//           All Rights Reserved                *
//                                  *
//************************************************************************/
//
//  File:       VizWin.h
//
//  Author:     Alan Norton
//          National Center for Atmospheric Research
//          PO 3000, Boulder, Colorado
//
//  Date:       October 2013
//
//
 
#ifndef VIZWIN_H
#define VIZWIN_H
 
#include <vapor/glutil.h>
#include <QGLWidget>
#include "vapor/Transform.h"
#include "Manip.h"
#include <QWheelEvent>
 
class QCloseEvent;
class QRect;
class QMouseEvent;
class QFocusEvent;
 
class Visualizer;
class Viewpoint;
class Trackball;
 
namespace VAPoR {
class ControlExec;
class Visualizer;
struct GLManager;
};    // namespace VAPoR
 
 
 
class VizWin : public QGLWidget {
    Q_OBJECT
 
public:
    VizWin(const QGLFormat &format, QWidget *parent, const QString &name, string winName, VAPoR::ControlExec *ce, Trackball *trackBall);
    ~VizWin();
 
    string getWindowName() { return _winName; }
 
    // Render the scene
    //
    // If \p fast is true try to render the scene quickly
    //
    void Render(bool fast);
 
signals:
    // Sent prior to closing window - after receiving Qt closeEvent()
    //
    void Closing(const string &winName);
 
    // Sent when window gains focus - after receiving Qt focusInEvent()
    //
    void HasFocus(const string &winName);
 
    // Sent when window ends navigation
    //
    void EndNavigation(const string &winName);
 
public slots:
    virtual void setFocus();
 
private:
    void _renderHelper(bool fast);
    void _preRender();
    void _postRender();
    void updateManip(bool initialize = false);
    void _updateOriginGlyph();
    void _drawContourSliceQuad();
 
    // Event handling
    // Virtual overrides:
    virtual void wheelEvent(QWheelEvent *e) { e->accept(); }
 
    // QWidget reimplementations
    virtual void mousePressEvent(QMouseEvent *);
    virtual void mouseReleaseEvent(QMouseEvent *);
    virtual void mouseMoveEvent(QMouseEvent *);
 
    virtual void _mousePressEventNavigate(QMouseEvent *);
    virtual void _mouseReleaseEventNavigate(QMouseEvent *);
    virtual void _mouseMoveEventNavigate(QMouseEvent *);
 
    virtual void _mousePressEventManip(QMouseEvent *);
    virtual void _mouseReleaseEventManip(QMouseEvent *);
    virtual void _mouseMoveEventManip(QMouseEvent *);
 
    virtual void focusInEvent(QFocusEvent *e);
    virtual void closeEvent(QCloseEvent *);
 
    // QGLWidget reimplementations
    virtual void resizeGL(int width, int height);
    virtual void initializeGL();
 
    string              _winName;
    VAPoR::ControlExec *_controlExec;
    VAPoR::GLManager *  _glManager;
    double              _strHandleMid[3];
    bool                _insideRender = false;
 
    bool       _mouseClicked;    // Indicates mouse has been clicked but not move
    int        _buttonNum;       // currently pressed button (0=none, 1=left,2=mid, 3=right)
    bool       _navigateFlag;
    bool       _manipFlag;
    bool       _manipFlowSeedFlag = false;
    bool       _manipFlowIntegrationFlag = false;
    Trackball *_trackBall;
 
    std::vector<double> _getScreenCoords(QMouseEvent *e) const;
    string              _getCurrentMouseMode() const;
    void                _setNewExtents();
    void                _getActiveExtents(VAPoR::CoordType &minExts, VAPoR::CoordType &maxExts);
    void                _getUnionOfFieldVarExtents(VAPoR::RenderParams *rParams, VAPoR::DataMgr *dataMgr, int timestep, int refLevel, int lod, VAPoR::CoordType &minExts, VAPoR::CoordType &maxExts);
    string _getCurrentDataMgrName() const;
    VAPoR::Transform *_getDataMgrTransform() const;
 
    void                 _getNearFarDist(const double posVec[3], const double dirVec[3], double &boxNear, double &boxFar) const;
    VAPoR::RenderParams *_getRenderParams();
    VAPoR::RenderParams *_getRenderParams(string &classType);
 
    void _setUpProjMatrix();
    void _setUpModelViewMatrix();
 
    VAPoR::TranslateStretchManip *_manip;
 
    bool _openGLInitFlag;
 
    friend class VizWinMgr;
};
 
#endif    // VIZWIN_H