#pragma once

#ifndef TFONT_H

#define TFONT_H

// Toonz includes

#include "trastercm.h"

#include "texception.h"

// STL includes

#include <string></string>

#undef DVAPI

#undef DVVAR

#ifdef TVRENDER_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 TVectorImageP;

class TFont;

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

//! Class to manage loading and rendering of fonts.

class DVAPI TFont {

public:

  struct Impl;

private:

  friend class TFontManager;

  Impl *m_pimpl;

  TFont(const std::wstring family, const std::wstring face, int size);

public:

  ~TFont();

  TPoint drawChar(TVectorImageP &outImage, wchar_t charcode,

                  wchar_t nextCode = 0) const;

  TPoint drawChar(QImage &outImage, TPoint &glyphOrigin, wchar_t charcode,

                  wchar_t nextCode = 0) const;

  TPoint drawChar(TRasterCM32P &outImage, TPoint &glyphOrigin, int inkId,

                  wchar_t charcode, wchar_t nextCode = 0) const;

  // brief  get kerning distance between two characters

  TPoint getDistance(wchar_t firstChar, wchar_t secondChar) const;

  int getMaxWidth() const;

  // void disableKerning();

  // void enableKerning();

  bool hasKerning() const;

  int getLineAscender() const;

  int getLineDescender() const;

  int getLineSpacing() const;

  int getHeight() const;

  int getAverageCharWidth() const;

  bool hasVertical() const;

  std::wstring getFamily() const;

  std::wstring getTypeface() const;

  // bool isValidCode( wchar_t code ) const;

private:

  // not implemented

  TFont(const TFont &);

  TFont &operator=(const TFont &);

};

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

class TFontCreationError final : public TException {

public:

  TFontCreationError() : TException("E_CanNotUseSelectedFont") {}

};

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

class TFontLibraryLoadingError final : public TException {

public:

  TFontLibraryLoadingError() : TException("E_CanNotLoadFonts") {}

};

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

// singleton

class DVAPI TFontManager {

  struct Impl;

  Impl *m_pimpl;

  TFontManager();

  ~TFontManager();

public:

  static TFontManager *instance();

  TFont *getCurrentFont();

  //! throws TFontLibraryLoadingError if can not load fonts

  void loadFontNames();

  //! if can not create font, throws TFontCreationError and leave as current the

  //! old one

  void setFamily(const std::wstring family);

  //! if can not create font, throws TFontCreationError and leave as current the

  //! old one

  void setTypeface(const std::wstring typeface);

  std::wstring getCurrentFamily() const;

  std::wstring getCurrentTypeface() const;

  void getAllFamilies(std::vector<std::wstring> &families) const;</std::wstring>

  void getAllTypefaces(std::vector<std::wstring> &typefaces) const;</std::wstring>

  void setVertical(bool vertical);

  void setSize(int size);

  bool isBold(const QString &family, const QString &style);

  bool isItalic(const QString &family, const QString &style);

  // --------- TFont methods called on current font -----------

  TPoint drawChar(TVectorImageP &outImage, wchar_t charcode,

                  wchar_t nextCode = 0) {

    return getCurrentFont()->drawChar(outImage, charcode, nextCode);

  }

  TPoint drawChar(QImage &outImage, TPoint &glyphOrigin, wchar_t charcode,

                  wchar_t nextCode = 0) {

    return getCurrentFont()->drawChar(outImage, glyphOrigin, charcode,

                                      nextCode);

  }

  TPoint drawChar(TRasterCM32P &outImage, TPoint &glyphOrigin, int inkId,

                  wchar_t charcode, wchar_t nextCode = 0) {

    return getCurrentFont()->drawChar(outImage, glyphOrigin, inkId, charcode,

                                      nextCode);

  }

  TPoint getDistance(wchar_t firstChar, wchar_t secondChar) {

    return getCurrentFont()->getDistance(firstChar, secondChar);

  }

  int getMaxWidth() { return getCurrentFont()->getMaxWidth(); }

  bool hasKerning() { return getCurrentFont()->hasKerning(); }

  int getLineAscender() { return getCurrentFont()->getLineAscender(); }

  int getLineDescender() { return getCurrentFont()->getLineDescender(); }

  int getLineSpacing() { return getCurrentFont()->getLineSpacing(); }

  int getHeight() { return getCurrentFont()->getHeight(); }

  int getAverageCharWidth() { return getCurrentFont()->getAverageCharWidth(); }

  bool hasVertical() { return getCurrentFont()->hasVertical(); }

};

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

#endif