Plot3DOpenGLCanvas.h

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// --------------------------------------------------------------------------
//                   OpenMS -- Open-Source Mass Spectrometry
// --------------------------------------------------------------------------
// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2022.
//
// This software is released under a three-clause BSD license:
//  * Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//  * Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//  * Neither the name of any author or any participating institution
//    may be used to endorse or promote products derived from this software
//    without specific prior written permission.
// For a full list of authors, refer to the file AUTHORS.
// --------------------------------------------------------------------------
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL ANY OF THE AUTHORS OR THE CONTRIBUTING
// INSTITUTIONS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// --------------------------------------------------------------------------
// $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();
  };
}