HistogramWidget.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>
 
// QT
#include <QtWidgets>
#include <QPixmap>
class QPaintEvent;
class QResizeEvent;
class QMouseEvent;
 
//OpenMS
#include <OpenMS/MATH/STATISTICS/Histogram.h>
 
namespace OpenMS
{
  class AxisWidget;
  class String;
 
  class OPENMS_GUI_DLLAPI HistogramWidget :
    public QWidget
  {
    Q_OBJECT
 
public:
    HistogramWidget(const Math::Histogram<> & distribution, QWidget * parent = nullptr);
 
    ~HistogramWidget() override;
 
    double getLeftSplitter() const;
 
    double getRightSplitter() const;
 
    void setLegend(const String & legend);
 
public slots:
    void showSplitters(bool on);
 
    void setRightSplitter(double pos);
 
    void setLeftSplitter(double pos);
 
    void setLogMode(bool log_mode);
 
protected:
    Math::Histogram<> dist_;
 
    bool show_splitters_;
 
    double left_splitter_;
 
    double right_splitter_;
 
    UInt moving_splitter_;
 
    AxisWidget * bottom_axis_;
 
    UInt margin_;
 
    QPixmap buffer_;
 
    bool log_mode_;
 
    void invalidate_();
 
 
    void paintEvent(QPaintEvent *) override;
    void mousePressEvent(QMouseEvent *) override;
    void mouseReleaseEvent(QMouseEvent *) override;
    void mouseMoveEvent(QMouseEvent *) override;
    void resizeEvent(QResizeEvent *) override;
 
protected slots:
 
    void showContextMenu(const QPoint & pos);
  };
} // namespace OpenMS