PlotCanvas.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: Marc Sturm $
// --------------------------------------------------------------------------
 
#pragma once
 
// OpenMS_GUI config
#include <OpenMS/VISUAL/OpenMS_GUIConfig.h>
 
//OpenMS
#include <OpenMS/CONCEPT/Types.h>
#include <OpenMS/CONCEPT/VersionInfo.h>
#include <OpenMS/DATASTRUCTURES/DefaultParamHandler.h>
#include <OpenMS/DATASTRUCTURES/DRange.h>
#include <OpenMS/KERNEL/DimMapper.h>
#include <OpenMS/VISUAL/LayerDataBase.h>
#include <OpenMS/VISUAL/MISC/CommonDefs.h>
 
//QT
#include <QtWidgets>
#include <QRubberBand>
 
class QWheelEvent;
class QKeyEvent;
class QMouseEvent;
class QFocusEvent;
class QMenu;
 
//STL
#include <stack>
#include <vector>
 
namespace OpenMS
{
  class PlotWidget;
  class LayerDataChrom;
  class LayerDataPeak;
  class LayerDataFeature;
  class LayerDataConsensus;
 
  using LayerDataBaseUPtr = std::unique_ptr<LayerDataBase>;
  using LayerDataChromUPtr = std::unique_ptr<LayerDataChrom>;
  using LayerDataPeakUPtr = std::unique_ptr<LayerDataPeak>;
  using LayerDataFeatureUPtr = std::unique_ptr<LayerDataFeature>;
  using LayerDataConsensusUPtr = std::unique_ptr<LayerDataConsensus>;
 
  class LayerStack
  {
    public:
      void addLayer(LayerDataBaseUPtr new_layer);
 
      const LayerDataBase& getLayer(const Size index) const;
 
      LayerDataBase& getLayer(const Size index);
 
      const LayerDataBase& getCurrentLayer() const;
 
      LayerDataBase& getCurrentLayer();
 
      void setCurrentLayer(Size index);
      
      Size getCurrentLayerIndex() const;
      
      bool empty() const;
 
      Size getLayerCount() const;
 
      void removeLayer(Size layer_index);
 
      void removeCurrentLayer();
  
  protected:
      std::vector<LayerDataBaseUPtr> layers_;
  private:
      Size current_layer_ = -1;
  };
 
  class OPENMS_GUI_DLLAPI PlotCanvas : public QWidget, public DefaultParamHandler
  {
    Q_OBJECT
 
  public:
 
    typedef LayerDataBase::ExperimentType ExperimentType;
    typedef LayerDataBase::ExperimentSharedPtrType ExperimentSharedPtrType;
    typedef LayerDataBase::ConstExperimentSharedPtrType ConstExperimentSharedPtrType;
    typedef LayerDataBase::ODExperimentSharedPtrType ODExperimentSharedPtrType;
    typedef LayerDataBase::FeatureMapType FeatureMapType;
    typedef LayerDataBase::FeatureMapSharedPtrType FeatureMapSharedPtrType;
    typedef LayerDataBase::ConsensusMapType ConsensusMapType;
    typedef LayerDataBase::ConsensusMapSharedPtrType ConsensusMapSharedPtrType;
 
    typedef ExperimentType::SpectrumType SpectrumType;
    typedef SpectrumType::ConstIterator SpectrumConstIteratorType;
    typedef SpectrumType::PeakType PeakType;
    using RangeType = RangeAllType;
 
    using AreaXYType = Area<2>::AreaXYType;
    using VisibleArea = Area<2>;
 
    using GenericArea = Area<2>;
 
    using PixelArea = Area<2>;
 
    using UnitRange = RangeAllType;
 
    using PointOnAxis = DimMapper<2>::Point;
 
    enum ActionModes
    {
      AM_TRANSLATE, 
      AM_ZOOM,      
      AM_MEASURE    
    };
 
    enum IntensityModes
    {
      IM_NONE,       
      IM_PERCENTAGE, 
      IM_SNAP,       
      IM_LOG         
    };
 
 
    PlotCanvas(const Param& preferences, QWidget* parent = nullptr);
 
    ~PlotCanvas() override;
 
    inline void setPlotWidget(PlotWidget* widget)
    {
      spectrum_widget_ = widget;
    }
 
    inline PlotWidget* getPlotWidget() const
    {
      return spectrum_widget_;
    }
 
    inline Int getActionMode() const
    {
      return action_mode_;
    }
 
    inline IntensityModes getIntensityMode() const
    {
      return intensity_mode_;
    }
 
    inline void setIntensityMode(IntensityModes mod)
    {
      intensity_mode_ = mod;
      intensityModeChange_();
    }
 
    inline bool gridLinesShown() const
    {
      return show_grid_;
    }
 
    const LayerDataBase& getLayer(Size index) const
    {
      return layers_.getLayer(index);
    }
    LayerDataBase& getLayer(Size index)
    {
      return layers_.getLayer(index);
    }
 
    const LayerDataBase& getCurrentLayer() const
    {
      return layers_.getCurrentLayer();
    }
    LayerDataBase& getCurrentLayer()
    {
      return layers_.getCurrentLayer();
    }
 
    inline Size getCurrentLayerIndex() const
    {
      return layers_.getCurrentLayerIndex();
    }
 
    bool getLayerFlag(LayerDataBase::Flags f) const
    {
      return getLayerFlag(layers_.getCurrentLayerIndex(), f);
    }
 
    void setLayerFlag(LayerDataBase::Flags f, bool value)
    {
      setLayerFlag(layers_.getCurrentLayerIndex(), f, value);
    }
 
    bool getLayerFlag(Size layer, LayerDataBase::Flags f) const
    {
      return layers_.getLayer(layer).flags.test(f);
    }
 
    void setLayerFlag(Size layer, LayerDataBase::Flags f, bool value)
    {
      // abort if there are no layers
      if (layers_.empty())
        return;
 
      layers_.getLayer(layer).flags.set(f, value);
      update_buffer_ = true;
      update();
    }
 
    inline void setLabel(LayerDataBase::LabelType label)
    {
      // abort if there are no layers
      if (layers_.empty())
        return;
      layers_.getCurrentLayer().label = label;
      update_buffer_ = true;
      update();
    }
 
    const VisibleArea& getVisibleArea() const
    {
      return visible_area_;
    }
 
    bool isVisible(const PointOnAxis& p) const
    {
      return visible_area_.getAreaXY().encloses(p);
    }
 
    PixelArea getPixelRange() const
    {
      int X_pixel_count = buffer_.width();
      int Y_pixel_count = buffer_.height();
      PixelArea area(&unit_mapper_);
      area.setArea(AreaXYType(0, 0, X_pixel_count, Y_pixel_count));
      return area;
    }
 
    virtual void initFilters(const DataFilters& filters);
 
    virtual void setFilters(const DataFilters& filters);
 
    inline Size getLayerCount() const
    {
      return layers_.getLayerCount();
    }
 
    virtual void activateLayer(Size layer_index) = 0;
    virtual void removeLayer(Size layer_index) = 0;
 
    void removeLayers()
    {
      for (Size i = getLayerCount(); i > 0; --i)
      {
        removeLayer(i - 1);
      }
      visible_area_.clear(); // reset visible area
    }
 
    bool addLayer(std::unique_ptr<LayerData1DBase> layer);
 
    bool addPeakLayer(const ExperimentSharedPtrType& map,
                      ODExperimentSharedPtrType od_map,
                      const String& filename = "",
                      const String& caption = "",
                      const bool use_noise_cutoff = false);
 
    bool addChromLayer(const ExperimentSharedPtrType& map, ODExperimentSharedPtrType od_map, const String& filename = "", const String& caption = "");
 
 
    bool addLayer(FeatureMapSharedPtrType map, const String& filename = "", const String& caption = "");
 
    bool addLayer(ConsensusMapSharedPtrType map, const String& filename = "", const String& caption = "");
 
    bool addLayer(PeptideIdentificationList& peptides, const String& filename = "", const String& caption = "");
 
    inline float getCurrentMinIntensity() const
    {
      return layers_.getCurrentLayer().getMinIntensity();
    }
 
    inline float getCurrentMaxIntensity() const
    {
      return layers_.getCurrentLayer().getMaxIntensity();
    }
 
    inline float getMinIntensity(Size index) const
    {
      return getLayer(index).getMinIntensity();
    }
 
    inline float getMaxIntensity(Size index) const
    {
      return getLayer(index).getMaxIntensity();
    }
 
    void setLayerName(Size i, const String& name);
 
    String getLayerName(Size i);
 
    inline void setCurrentLayerParameters(const Param& param)
    {
      getCurrentLayer().param = param;
      emit preferencesChange();
    }
 
    virtual const RangeType& getDataRange() const;
 
    double getSnapFactor();
 
    double getPercentageFactor() const;
 
    virtual void showCurrentLayerPreferences() = 0;
 
    virtual void showMetaData(bool modifiable = false, Int index = -1);
 
  public slots:
 
    void changeVisibility(Size i, bool b);
 
    void changeLayerFilterState(Size i, bool b);
 
    void showGridLines(bool show);
 
    virtual void resetZoom(bool repaint = true);
 
    void setVisibleArea(const VisibleArea& area);
 
    void setVisibleArea(const RangeAllType& area);
 
    void setVisibleArea(const AreaXYType& area);
 
    void setVisibleAreaX(double min, double max);
 
    void setVisibleAreaY(double min, double max);
 
    void saveCurrentLayer(bool visible);
 
    virtual void horizontalScrollBarChange(int value);
 
    virtual void verticalScrollBarChange(int value);
 
    void setAdditionalContextMenu(QMenu * menu);
 
    virtual void updateLayer(Size i) = 0;
 
 
    AreaXYType canvasPixelArea() const
    {
      return AreaXYType({0, 0}, {(float)width(), (float)height()});
    }
 
    const DimMapper<2>& getMapper() const;
 
    void setMapper(const DimMapper<2>& mapper);
 
  signals:
    void layerModficationChange(Size layer, bool modified);
 
    void layerActivated(QWidget * w);
 
    void layerZoomChanged(QWidget * w);
 
    void visibleAreaChanged(const VisibleArea& area);
 
    void sendCursorStatus(const String& x_value, const String& y_value);
 
    void sendStatusMessage(std::string message, OpenMS::UInt time);
 
    void recalculateAxes();
 
    void updateVScrollbar(float f_min, float disp_min, float disp_max, float f_max);
 
    void updateHScrollbar(float f_min, float disp_min, float disp_max, float f_max);
 
    void changeLegendVisibility();
 
    void actionModeChange();
 
    void preferencesChange();
 
protected slots:
 
    void updateCursor_();
 
protected:
 
    void drawText_(QPainter & painter, const QStringList& text);
 
    double getIdentificationMZ_(const Size layer_index,
                                    const PeptideIdentification & peptide) const;
 
    virtual bool finishAdding_() = 0;
 
    void popIncompleteLayer_(const QString& error_message = "");
 
 
    void resizeEvent(QResizeEvent * e) override;
    void wheelEvent(QWheelEvent * e) override;
    void keyPressEvent(QKeyEvent * e) override;
    void keyReleaseEvent(QKeyEvent * e) override;
    void focusOutEvent(QFocusEvent * e) override;
    void leaveEvent(QEvent * e) override;
    void enterEvent(QEnterEvent * e) override;
 
    virtual void intensityModeChange_();
 
    void dimensionsChanged_();
 
    virtual void changeVisibleArea_(VisibleArea new_area, bool repaint = true, bool add_to_stack = false);
 
    virtual void recalculateSnapFactor_();
 
 
 
    virtual void zoom_(int x, int y, bool zoom_in);
    void zoomBack_();
    virtual void zoomForward_();
    void zoomAdd_(const VisibleArea& area);
    void zoomClear_();
 
 
 
    virtual void translateLeft_(Qt::KeyboardModifiers m);
    virtual void translateRight_(Qt::KeyboardModifiers m);
    virtual void translateForward_();
    virtual void translateBackward_();
 
    virtual void updateScrollbars_();
 
    inline PointXYType widgetToData_(double x, double y)
    {
      const auto& xy = visible_area_.getAreaXY();
      return PointXYType(
                xy.minX() + x / width() * xy.width(),
                xy.minY() + (height() - y) / height() * xy.height()
                );
    }
 
    inline PointXYType widgetToData_(const QPoint& pos)
    {
      return widgetToData_(pos.x(), pos.y());
    }
 
    virtual void paintGridLines_(QPainter & painter);
 
    QImage buffer_;
 
    DimMapper<2> unit_mapper_;
 
    ActionModes action_mode_ = AM_TRANSLATE;
 
    IntensityModes intensity_mode_ = IM_NONE;
 
    LayerStack layers_;
 
    VisibleArea visible_area_;
 
    virtual void recalculateRanges_();
 
    RangeType overall_data_range_;
 
    bool show_grid_ = true;
 
    std::vector<VisibleArea> zoom_stack_;
    std::vector<VisibleArea>::iterator zoom_pos_ = zoom_stack_.end();
 
    virtual void update_(const char* caller_name);
 
    void modificationStatus_(Size layer_index, bool modified);
 
    bool update_buffer_ = false;
 
    PlotWidget* spectrum_widget_ = nullptr;
 
    QPoint last_mouse_pos_;
 
    double percentage_factor_ = 1.0;
 
    std::vector<double> snap_factors_;
 
    QRubberBand rubber_band_;
 
    QMenu* context_add_ = nullptr;
 
    bool show_timing_ = false;
 
    PeakIndex selected_peak_;
    PeakIndex measurement_start_;
 
    void addDataProcessing_(PeakMap & map, DataProcessing::ProcessingAction action) const
    {
      std::set<DataProcessing::ProcessingAction> actions;
      actions.insert(action);
 
      DataProcessingPtr p = std::shared_ptr<DataProcessing>(new DataProcessing);
      //actions
      p->setProcessingActions(actions);
      //software
      p->getSoftware().setName("PlotCanvas");
      //version
      p->getSoftware().setVersion(VersionInfo::getVersion());
      //time
      p->setCompletionTime(DateTime::now());
 
      for (Size i = 0; i < map.size(); ++i)
      {
        map[i].getDataProcessing().push_back(p);
      }
    }
 
  };
}