#pragma once

#ifndef SWATCHVIEWER_H

#define SWATCHVIEWER_H

#ifdef _MSC_VER

#pragma warning(disable : 4251)

#endif

#include "tcommon.h"

#include <qwidget></qwidget>

#include "tfx.h"

#include "tparamset.h"

#include "trenderer.h"

#include "tthreadmessage.h"

#include "tthread.h"

#include "trop.h"

#include <qtouchdevice></qtouchdevice>

using namespace TThread;

#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

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

//  Forward declarations

class QTouchEvent;

class QGestureEvent;

//=============================================================================

class DVAPI BgPainter {

  std::string m_name;

public:

  BgPainter(std::string name) : m_name(name) {}

  virtual ~BgPainter() {}

  std::string getName() const { return m_name; }

  virtual void paint(const TRaster32P &ras) = 0;

};

//=============================================================================

class DVAPI SolidColorBgPainter final : public BgPainter {

  TPixel32 m_color;

public:

  SolidColorBgPainter(std::string name, TPixel32 color)

      : BgPainter(name), m_color(color) {}

  void paint(const TRaster32P &ras) override { ras->fill(m_color); }

};

//=============================================================================

class DVAPI CheckboardBgPainter final : public BgPainter {

  TPixel32 m_c0, m_c1;

public:

  CheckboardBgPainter(std::string name, TPixel32 c0, TPixel32 c1)

      : BgPainter(name), m_c0(c0), m_c1(c1) {}

  void paint(const TRaster32P &ras) override {

    int n = 4, min = 4;

    TDimensionD d(std::max(min, ras->getLx() / n),

                  std::max(min, ras->getLy() / n));

    d.lx = d.ly = std::max(d.lx, d.ly);

    TRop::checkBoard(ras, m_c0, m_c1, d, TPointD());

  }

};

//=============================================================================

/*! \brief SwatchViewer.

                Inherits \b QWidget.

*/

class DVAPI SwatchViewer final : public QWidget {

  Q_OBJECT

  //! La classe \b Point gestisce un punto che e' collegato a parametri \b

  //! TPointParam.

  /*!Questo tipo di punti consentono di modificare alcuni parametri dell'effetto

  corrente e

  sono editabili dall'utente direttamente nello SwatchViewer*/

  class Point {

  public:

    int m_index;

    TPointParamP m_param;

    bool m_pairFlag;

    Point(int index, const TPointParamP ¶m)

        : m_index(index), m_param(param), m_pairFlag(false) {}

  };

  TFxP m_fx;

  TFxP m_actualFxClone;

  TRaster32P m_raster;

  TRaster32P m_content;

  TAffine m_aff;

  TAffine m_fxAff;

  TAffine m_contentAff;

  bool m_cameraMode;

  TRect m_cameraRect;

  Qt::MouseButton m_mouseButton;

  std::vector<point> m_points;</point>

  std::vector<std::pair<int, int="">> m_pointPairs;</std::pair<int,>

  int m_selectedPoint;

  TPointD m_pointPosDelta;

  bool m_enabled;

  bool m_firstEnabled;

  int m_frame;

  TThread::Executor m_executor;

  TThread::Mutex m_mutex;

  TRenderer m_renderer;

  BgPainter *m_bgPainter;

  TRaster32P m_crossIcon;

  TPoint m_pos;

  TPoint m_firstPos;

  TRaster32P m_oldContent, m_curContent;

  bool m_computing;

  bool m_touchActive                     = false;

  bool m_gestureActive                   = false;

  QTouchDevice::DeviceType m_touchDevice = QTouchDevice::TouchScreen;

  bool m_zooming                         = false;

  bool m_panning                         = false;

  double m_scaleFactor;  // used for zoom gesture

  bool m_stylusUsed = false;

  friend class ContentRender;

public:

  class ContentRender final : public TThread::Runnable {

  public:

    TRasterFxP m_fx;

    TRasterP m_raster;

    int m_frame;

    TDimension m_size;

    TAffine m_aff;

    SwatchViewer *m_viewer;

    bool m_started;

    ContentRender(TRasterFx *fx, int frame, const TDimension &size,

                  SwatchViewer *viewer);

    ~ContentRender();

    void run() override;

    int taskLoad() override;

    void onStarted(TThread::RunnableP task) override;

    void onFinished(TThread::RunnableP task) override;

    void onCanceled(TThread::RunnableP task) override;

  };

#if QT_VERSION >= 0x050500

  SwatchViewer(QWidget *parent = 0, Qt::WindowFlags flags = 0);

#else

  SwatchViewer(QWidget *parent = 0, Qt::WFlags flags = 0);

#endif

  ~SwatchViewer();

  static void suspendRendering(bool suspend, bool blocking = true);

  void setCameraMode(bool enabled) { m_cameraMode = enabled; }

  bool getCameraMode() const { return m_cameraMode; }

  void setCameraSize(const TDimension &cameraSize);

  TDimension getCameraSize() const { return m_cameraRect.getSize(); }

  void setFx(const TFxP &fx, const TFxP &actualFx, int frame);

  void updateFrame(int frame);

  bool isEnabled() { return m_enabled; }

public slots:

  void setEnable(bool enabled);

  void updateSize(const QSize &size);

  void setBgPainter(TPixel32 color1, TPixel32 color2 = TPixel32());

  void resetView();

  void fitView();

protected:

  void computeContent();

  TPoint world2win(const TPointD &p) const;

  TPointD win2world(const TPoint &p) const;

  void zoom(const TPoint &pos, double factor);

  void zoom(bool forward, bool reset);

  void pan(const TPoint &delta);

  void updateRaster();

  const TRaster32P &getContent() const { return m_content; }

  void setContent(const TRaster32P &content, const TAffine &contentAff);

  void setAff(const TAffine &aff);

  void contextMenuEvent(QContextMenuEvent *event) override;

  void paintEvent(QPaintEvent *event) override;

  void mousePressEvent(QMouseEvent *event) override;

  void mouseMoveEvent(QMouseEvent *event) override;

  void mouseReleaseEvent(QMouseEvent *event) override;

  void wheelEvent(QWheelEvent *) override;

  void keyPressEvent(QKeyEvent *event) override;

  void resizeEvent(QResizeEvent *event) override;

  void hideEvent(QHideEvent *event) override;

  void mouseDoubleClickEvent(QMouseEvent *event) override;

  void tabletEvent(QTabletEvent *e) override;

  void touchEvent(QTouchEvent *e, int type);

  void gestureEvent(QGestureEvent *e);

  bool event(QEvent *e) override;

private:

  QPointF m_firstPanPoint;

signals:

  void pointPositionChanged(int index, const TPointD &p);

};

#endif  // SWATCHVIEWER_H