#pragma once

#ifndef COMBOHISTOGRAM_H

#define COMBOHISTOGRAM_H

#include "tcommon.h"

#include "traster.h"

#include "ttoonzimage.h"

#include "tpalette.h"

#include <qwidget></qwidget>

#include <qstackedwidget></qstackedwidget>

#undef DVAPI

#undef DVVAR

#ifdef TOONZQT_EXPORTS

#define DVAPI DV_EXPORT_API

#define DVVAR DV_EXPORT_VAR

#else

#define DVAPI DV_IMPORT_API

#define DVVAR DV_IMPORT_VAR

#endif

#ifdef _MSC_VER

#pragma warning(disable : 4251)

#endif

class QStackedWidget;

class QString;

class QComboBox;

class QColor;

class RGBLabel;

class QLabel;

#define COMBOHIST_RESOLUTION_W 256

#define COMBOHIST_RESOLUTION_H 100

//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------

// 120405

//-----------------------------------------------------------------------------

class DVAPI ComboHistoRGBLabel final : public QWidget {

  QColor m_color;

public:

  ComboHistoRGBLabel(QColor color, QWidget *parent);

  ~ComboHistoRGBLabel() {}

  void setColorAndUpdate(QColor color);

protected:

  void paintEvent(QPaintEvent *pe) override;

};

//-----------------------------------------------------------------------------

class DVAPI ChannelHistoGraph : public QWidget {

  Q_OBJECT

  QVector<int> m_values;</int>

  int m_pickedValue;

public:

  int *m_channelValuePtr;

  ChannelHistoGraph(QWidget *parent = 0, int *channelValue = 0);

  ~ChannelHistoGraph();

  virtual void setValues();

  void showCurrentChannelValue(int val);

protected:

  void paintEvent(QPaintEvent *event) override;

};

//-----------------------------------------------------------------------------

class DVAPI RGBHistoGraph final : public ChannelHistoGraph {

  Q_OBJECT

  QVector<int> m_rgbValues[3];</int>

  QImage m_histoImg;

public:

  RGBHistoGraph(QWidget *parent = 0, int *channelValue = 0);

  ~RGBHistoGraph();

  void setValues() override;

protected:

  void paintEvent(QPaintEvent *event) override;

};

//-----------------------------------------------------------------------------

class DVAPI ChannelColorBar final : public QWidget {

  Q_OBJECT

  QColor m_color;

public:

  ChannelColorBar(QWidget *parent = 0, QColor m_color = QColor());

  ~ChannelColorBar() {}

protected:

  void paintEvent(QPaintEvent *event) override;

};

//-----------------------------------------------------------------------------

class DVAPI ChannelHisto final : public QWidget {

  Q_OBJECT

  ChannelHistoGraph *m_histogramGraph;

  ChannelColorBar *m_colorBar;

public:

  ChannelHisto(int channelIndex, int *channelValue, QWidget *parent = 0);

  ~ChannelHisto() {}

  void refleshValue() { m_histogramGraph->setValues(); }

  void showCurrentChannelValue(int val);

protected slots:

  void onShowAlphaButtonToggled(bool visible);

};

//-----------------------------------------------------------------------------

class DVAPI ComboHistogram final : public QWidget {

  Q_OBJECT

  TRasterP m_raster;

  TPaletteP m_palette;

  // rgba channels

  int m_channelValue[4][COMBOHIST_RESOLUTION_W];

  // rgba channels + composited

  ChannelHisto *m_histograms[5];

  ComboHistoRGBLabel *m_rgbLabel;

  ComboHistoRGBLabel *m_rectAverageRgbLabel;

  QLabel *m_xPosLabel;

  QLabel *m_yPosLabel;

public:

  ComboHistogram(QWidget *parent = 0);

  ~ComboHistogram();

  TRasterP getRaster() const { return m_raster; }

  void setRaster(const TRasterP &raster, const TPaletteP &palette = 0);

  void updateInfo(const TPixel32 &pix, const TPointD &imagePos);

  void updateAverageColor(const TPixel32 &pix);

protected:

  void computeChannelsValue();

};

#endif