#pragma once

#ifndef GUTIL_H

#define GUTIL_H

#include "tcommon.h"

#include <qimage></qimage>

#include <qframe></qframe>

#include <qcolor></qcolor>

#include "traster.h"

#include "toonz/preferences.h"

#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 declaration

class TMouseEvent;

class QMouseEvent;

class QTabletEvent;

class QKeyEvent;

class QUrl;

class TFilePath;

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

// Constant definition

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

namespace {

const QColor grey120(120, 120, 120);

const QColor grey210(210, 210, 210);

const QColor grey225(225, 225, 225);

const QColor grey190(190, 190, 190);

const QColor grey150(150, 150, 150);

struct SvgRenderParams {

  QSize size;

  QRectF rect;

};

}  // namespace

class QPainter;

class QIcon;

class TFilePath;

class QPainterPath;

class TStroke;

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

QString DVAPI getIconThemePath(const QString &filePath);

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

QString DVAPI fileSizeString(qint64 size, int precision = 2);

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

QImage DVAPI rasterToQImage(const TRasterP &ras, bool premultiplied = true,

                            bool mirrored = true);

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

QPixmap DVAPI rasterToQPixmap(const TRaster32P &ras, bool premultiplied = true,

                              bool setDevPixRatio = false);

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

TRaster32P DVAPI rasterFromQImage(QImage image, bool premultiply = true,

                                  bool mirror = true);

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

TRaster32P DVAPI rasterFromQPixmap(QPixmap pixmap, bool premultiply = true,

                                   bool mirror = true);

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

void DVAPI drawPolygon(QPainter &p, const std::vector<qpointf> &points,</qpointf>

                       bool fill = false, const QColor colorFill = Qt::white,

                       const QColor colorLine = Qt::black);

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

void DVAPI drawArrow(QPainter &p, const QPointF a, const QPointF b,

                     const QPointF c, bool fill = false,

                     const QColor colorFill = Qt::white,

                     const QColor colorLine = Qt::black);

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

QPixmap DVAPI scalePixmapKeepingAspectRatio(QPixmap p, QSize size,

                                            QColor color = Qt::white);

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

SvgRenderParams calculateSvgRenderParams(const QSize &desiredSize,

                                         QSize &imageSize,

                                         Qt::AspectRatioMode aspectRatioMode);

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

QPixmap DVAPI

svgToPixmap(const QString &svgFilePath, QSize size = QSize(),

            Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio,

            QColor bgColor                      = Qt::transparent);

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

QImage DVAPI

svgToImage(const QString &svgFilePath, QSize size = QSize(),

           Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio,

           QColor bgColor                      = Qt::transparent);

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

// returns device-pixel ratio. It is 1 for normal monitors and 2 (or higher

// ratio) for high DPI monitors. Setting "Display > Set custom text size(DPI)"

// for Windows corresponds to this ratio.

int DVAPI getDevicePixelRatio(const QWidget *widget = nullptr);

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

QImage DVAPI adjustImageOpacity(const QImage &input, qreal opacity = 1.0);

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

QImage DVAPI compositeImage(const QImage &input, QSize newSize = QSize(),

                            bool scaleInput = false,

                            QColor bgColor  = Qt::transparent);

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

QPixmap DVAPI convertImageToPixmap(const QImage &image);

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

QImage DVAPI

generateIconImage(const QString &iconSVGName, qreal opacity = qreal(1.0),

                  QSize newSize                       = QSize(),

                  Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio);

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

QPixmap DVAPI

generateIconPixmap(const QString &iconSVGName, qreal opacity = qreal(1.0),

                   QSize newSize                       = QSize(),

                   Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio);

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

void DVAPI addImagesToIcon(QIcon &icon, const QImage &baseImg,

                           const QImage &overImg = QImage(),

                           const QImage &onImg   = QImage(),

                           bool useFullOpacity   = false);

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

void DVAPI addSpecifiedSizedImageToIcon(QIcon &icon, const char *iconSVGName,

                                        QSize newSize = QSize());

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

void DVAPI addPixmapToAllModesAndStates(QIcon &icon, const QPixmap &pixmap);

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

QIcon DVAPI createQIcon(const QString &iconSVGName, bool useFullOpacity = false,

                        bool isForMenuItem = false, QSize newSize = QSize());

QIcon DVAPI createQIconPNG(const char *iconPNGName);

QIcon DVAPI createQIconOnOffPNG(const char *iconPNGName, bool withOver = true);

QIcon DVAPI createTemporaryIconFromName(const char *commandName);

inline QSize dimension2QSize(const TDimension &sz) {

  return QSize(sz.lx, sz.ly);

}

inline TDimension qsize2Dimension(const QSize &sz) {

  return TDimension(sz.width(), sz.height());

}

QString DVAPI toQString(const TFilePath &path);

bool DVAPI isSpaceString(const QString &str);

bool DVAPI isValidFileName(const QString &fileName);

bool DVAPI isValidFileName_message(const QString &fileName);

bool DVAPI isReservedFileName(const QString &fileName);

bool DVAPI isReservedFileName_message(const QString &fileName);

QString DVAPI elideText(const QString &columnName, const QFont &font,

                        int width);

QString DVAPI elideText(const QString &columnName, const QFontMetrics &fm,

                        int width, const QString &elideSymbol);

QUrl DVAPI pathToUrl(const TFilePath &path);

bool DVAPI isResource(const QString &path);

bool DVAPI isResource(const QUrl &url);

bool DVAPI isResourceOrFolder(const QUrl &url);

bool DVAPI acceptResourceDrop(const QList<qurl> &urls);</qurl>

bool DVAPI acceptResourceOrFolderDrop(const QList<qurl> &urls);</qurl>

inline QPointF toQPointF(const TPointD &p) { return QPointF(p.x, p.y); }

inline QPointF toQPointF(const TPoint &p) { return QPointF(p.x, p.y); }

inline QPoint toQPoint(const TPoint &p) { return QPoint(p.x, p.y); }

inline TPointD toTPointD(const QPointF &p) { return TPointD(p.x(), p.y()); }

inline TPointD toTPointD(const QPoint &p) { return TPointD(p.x(), p.y()); }

inline TPoint toTPoint(const QPoint &p) { return TPoint(p.x(), p.y()); }

inline QRect toQRect(const TRect &r) {

  return QRect(r.x0, r.y0, r.getLx(), r.getLy());

}

inline QRectF toQRectF(const TRectD &r) {

  return QRectF(r.x0, r.y0, r.getLx(), r.getLy());

}

inline QRectF toQRectF(const TRect &r) {

  return QRectF(r.x0, r.y0, r.getLx(), r.getLy());

}

inline TRect toTRect(const QRect &r) {

  return TRect(r.left(), r.top(), r.right(), r.bottom());

}

inline TRectD toTRectD(const QRectF &r) {

  return TRectD(r.left(), r.top(), r.right(), r.bottom());

}

inline TRectD toTRectD(const QRect &r) {

  return TRectD(r.left(), r.top(), r.right() + 1, r.bottom() + 1);

}

QPainterPath DVAPI strokeToPainterPath(TStroke *stroke);

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

// This widget is only used to set the background color of the tabBar

// using the styleSheet.

// It is also used to take 6px on the left before the tabBar

class DVAPI TabBarContainter final : public QFrame {

  Q_OBJECT

public:

  TabBarContainter(QWidget *parent = 0);

protected:

  QColor m_bottomBelowLineColor, m_bottomAboveLineColor;

  Q_PROPERTY(QColor BottomBelowLineColor READ getBottomBelowLineColor WRITE

                 setBottomBelowLineColor);

  Q_PROPERTY(QColor BottomAboveLineColor READ getBottomAboveLineColor WRITE

                 setBottomAboveLineColor);

  void paintEvent(QPaintEvent *event) override;

  void setBottomBelowLineColor(const QColor &color) {

    m_bottomBelowLineColor = color;

  }

  QColor getBottomBelowLineColor() const { return m_bottomBelowLineColor; }

  void setBottomAboveLineColor(const QColor &color) {

    m_bottomAboveLineColor = color;

  }

  QColor getBottomAboveLineColor() const { return m_bottomAboveLineColor; }

};

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

// This widget is only used to set the background color of the playToolBar

// using the styleSheet. And to put a line in the upper zone

class DVAPI ToolBarContainer final : public QFrame {

public:

  ToolBarContainer(QWidget *parent = 0);

protected:

  void paintEvent(QPaintEvent *event) override;

};

QString DVAPI operator+(const QString &a, const TFilePath &fp);

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

// Theme Manager

// For managing icon themes

class DVAPI ThemeManager {  // singleton

public:

  static ThemeManager &getInstance();

  void buildIconPathsMap(const QString &path);

  bool hasIcon(const QString &iconName) const;

  QString getIconPath(const QString &iconName) const;

  qreal getOnOpacity() const;

  qreal getOffOpacity() const;

  qreal getDisabledOpacity() const;

  QImage recolorBlackPixels(const QImage &image, QColor color = QColor());

  QPixmap recolorBlackPixels(const QPixmap &input, QColor color = QColor());

  // Debug

  void printiconPathsMap();

  ThemeManager(ThemeManager const &)   = delete;

  void operator=(ThemeManager const &) = delete;

  ~ThemeManager();

private:

  ThemeManager();

  class ThemeManagerImpl;                  // forward declaration

  std::unique_ptr<thememanagerimpl> impl;  // opaque pointer</thememanagerimpl>

};

QString DVAPI getIconPath(const QString &path);

#endif  // GUTIL_H