Plot3DOpenGLCanvas.h

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// Copyright (c) 2002-present, OpenMS Inc. -- EKU Tuebingen, ETH Zurich, and FU Berlin
// SPDX-License-Identifier: BSD-3-Clause
//
// --------------------------------------------------------------------------
// $Maintainer: Timo Sachsenberg $
// $Authors: Cornelia Friedle $
// --------------------------------------------------------------------------
 
#pragma once
 
// OpenMS_GUI config
#include <OpenMS/VISUAL/OpenMS_GUIConfig.h>
 
#include <QOpenGLWidget>
#include <QOpenGLFunctions_2_0>
 
// OpenMS
#include <OpenMS/DATASTRUCTURES/DRange.h>
 
namespace OpenMS
{
  class Plot3DCanvas;
  class LayerDataBase;
 
  class OPENMS_GUI_DLLAPI Plot3DOpenGLCanvas :
    public QOpenGLWidget, 
    protected QOpenGLFunctions_2_0
  {
    Q_OBJECT
 
    friend class Plot3DCanvas;
 
public:
 
    typedef std::vector<std::vector<double> > AxisTickVector;
 
    Plot3DOpenGLCanvas(QWidget * parent, Plot3DCanvas & canvas_3d);
    ~Plot3DOpenGLCanvas() override;
 
    void initializeGL() override;
    void resizeGL(int w, int h) override;
    void paintGL() override;
 
    void mouseMoveEvent(QMouseEvent * e) override;
    void mouseReleaseEvent(QMouseEvent * e) override;
    void mousePressEvent(QMouseEvent * e) override;
    void focusOutEvent(QFocusEvent * e) override;
 
    void setXLabel(const QString& l) { x_label_ = l; }
    void setYLabel(const QString& l) { y_label_ = l; }
    void setZLabel(const QString& l) { z_label_ = l; }
    
    void updateIntensityScale();
protected:
    GLint project_(GLdouble objx, GLdouble objy, GLdouble objz, GLdouble * winx, GLdouble * winy); 
    void transformPoint_(GLdouble out[4], const GLdouble m[16], const GLdouble in[4]);
    void renderText_(double x, double y, double z, const QString & text);
    void qglColor_(const QColor& color);
    void qglClearColor_(const QColor& clearColor);
    GLuint makeDataAsStick_();
    GLuint makeAxes_();
    GLuint makeAxesTicks_();
    GLuint makeDataAsTopView_();
    GLuint makeGround_();
    GLuint makeGridLines_();
    void drawAxesLegend_();
 
    void computeSelection_();
 
    void dataToZoomArray_(double x_1, double y_1, double x_2, double y_2);
 
    double scaledRT_(double rt);
    double scaledInversRT_(double mz);
    double scaledMZ_(double mz);
    double scaledInversMZ_(double mz);
    double scaledIntensity_(float intensity, Size layer_index);
    
    void recalculateDotGradient_(LayerDataBase& layer);
    void calculateGridLines_();
 
    void normalizeAngle(int* angle);
    // set translation vector to 0
    void resetTranslation();
 
    void storeRotationAndZoom();
    void restoreRotationAndZoom();
 
    GLuint stickdata_;
    GLuint axes_;
    GLuint axes_ticks_;
    GLuint gridlines_;
    GLuint ground_;
 
    Plot3DCanvas & canvas_3d_;
 
    int xrot_;
    int yrot_;
    int zrot_;
 
    int xrot_tmp_;
    int yrot_tmp_;
    int zrot_tmp_;
 
    QPainter* painter_ = nullptr;
 
    QPoint mouse_move_end_, mouse_move_begin_;
 
    double corner_;
    double zoom_;
    double zoom_tmp_;
 
    double near_;
    double far_;
    float width_;
    float height_;
    DRange<3> overall_values_;
    DRange<1> int_scale_;
    AxisTickVector grid_mz_;
    AxisTickVector grid_rt_;
    AxisTickVector grid_intensity_;
    double x_1_;
    double x_2_;
    double y_1_;
    double y_2_;
    double trans_x_;
    double trans_y_;
 
    QString x_label_;
    QString y_label_;
    QString z_label_;
 
protected slots:
    void actionModeChange();
  };
}