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#pragma once
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#ifndef TCOLORSTYLES_H
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#define TCOLORSTYLES_H
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// TnzCore includes
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#include "tfilepath.h"
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#include "traster.h"
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// Qt includes
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#include <qstring></qstring>
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#undef DVAPI
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#undef DVVAR
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#ifdef TVRENDER_EXPORTS
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#define DVAPI DV_EXPORT_API
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#define DVVAR DV_EXPORT_VAR
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#else
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#define DVAPI DV_IMPORT_API
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#define DVVAR DV_IMPORT_VAR
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#endif
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//=================================================
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//    Forward declarations
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class TStroke;
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class TRegion;
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class TStrokeProp;
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class TRegionProp;
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class TVectorRenderData;
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class TInputStreamInterface;
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class TOutputStreamInterface;
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class TRasterStyleFx;
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class QStringList;
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//=================================================
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//************************************************************************
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//    TRasterStyleFx  definition
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//************************************************************************
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class DVAPI TRasterStyleFx {
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public:
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  struct Params {
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    TRasterP m_r;
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    TPoint m_p;
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    TRasterP m_rOrig;
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    int m_colorIndex;
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    int m_frame;
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  public:
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    Params(const TRasterP &r, const TPoint &p, const TRasterP &rOrig, int index,
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           int frame)
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        : m_r(r), m_p(p), m_rOrig(rOrig), m_colorIndex(index), m_frame(frame) {
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      assert(m_r);
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    }
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  };
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public:
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  virtual ~TRasterStyleFx() {}
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  virtual bool isInkStyle() const   = 0;
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  virtual bool isPaintStyle() const = 0;
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  virtual bool inkFxNeedRGBMRaster() const { return false; }
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  virtual bool compute(const Params ¶ms) const = 0;
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  virtual void getEnlargement(int &borderIn, int &borderOut) const {
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    borderIn = borderOut = 0;
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  }
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};
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//************************************************************************
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//    TColorStyle  definition
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//************************************************************************
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/*!
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  \brief Abstract class representing a color style in a Toonz palette.
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*/
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class DVAPI TColorStyle : public TSmartObject {
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public:
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  //! Helper class to declare color styles
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  class Declaration {
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  public:
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    Declaration(TColorStyle *style) { declare(style); }
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  };
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  enum ParamType {
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    BOOL,     //!< Boolean parameter type.
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    INT,      //!< Integer parameter type.
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    ENUM,     //!< Enum parameter type (maps to integer values).
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    DOUBLE,   //!< Double parameter type (getParamType() default).
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    FILEPATH  //!< TFilePath parameter type.
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  };
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  struct double_tag {};
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  struct bool_tag {};
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  struct int_tag {};
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  struct TFilePath_tag {};
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  struct PickedPosition {
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    TPoint pos = TPoint();
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    int frame  = 0;
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    PickedPosition(TPoint _pos = TPoint(), int _frame = 0)
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        : pos(_pos), frame(_frame) {}
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    inline bool operator==(const PickedPosition &p) const {
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      return (this->pos == p.pos) && (this->frame == p.frame);
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    }
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    inline bool operator!=(const PickedPosition &p) const {
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      return (this->pos != p.pos) || (this->frame != p.frame);
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    }
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  };
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private:
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  std::wstring m_name;          //!< User-define style name.
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  std::wstring m_globalName;    //!< User-define style \a global name.
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  std::wstring m_originalName;  //!< If the style is copied from studio palette,
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                                //! its original name is stored
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  int m_versionNumber;  //!< Style's version number.
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  unsigned int m_flags;  //!< Style attributes.
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  bool m_enabled;        //!< Style's \a enabled status.
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  bool m_isEditedFromOriginal;  //
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                                // This flag will be set when the
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  //!  style is edited from the original one.
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  PickedPosition
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      m_pickedPosition;  // picked position from color model by using style
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                         // picker tool with "organize palette" option.
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protected:
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  TRaster32P m_icon;  //!< Icon shown on TPalette viewers.
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  bool m_validIcon;   //!< Icon's validity status.
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public:
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  static int m_currentFrame;  //!< Time instant in the palette's timeline.
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                              //!  \deprecated  Should be done better
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public:
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  TColorStyle();
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  TColorStyle(
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      const TColorStyle &other);  //!< Copies another style \a except its icon
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  virtual ~TColorStyle();
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  virtual TColorStyle *clone() const = 0;  //!< Polymorphic clone of the style.
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  virtual TColorStyle ©(
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      const TColorStyle &other)  //!< Polymorphic copy of the style.
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  {
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    assignBlend(other, other, 0.0);
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    return *this;
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  }
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  bool operator==(const TColorStyle &cs) const;
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  bool operator!=(const TColorStyle &cs) { return !operator==(cs); }
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  // Renderizer-related  objects
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  virtual TStrokeProp *makeStrokeProp(
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      const TStroke
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          *stroke) = 0;  //!< Allocates a \a new derived TStrokeProp instance
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  //!  used to draw the style on the specified stroke object.
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  virtual TRegionProp *makeRegionProp(
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      const TRegion
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          *region) = 0;  //!< Allocates a \a new derived TRegionProp instance
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  //!  used to draw the style on the specified region object.
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  virtual bool isRasterStyle() const {
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    return false;
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  }  //!< Returns whether the style is of the raster kind.
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  virtual TRasterStyleFx *getRasterStyleFx() {
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    return 0;
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  }  //!< If the style contains raster effects it must return it,
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     //!  else returns 0.
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  virtual bool isRegionStyle()
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      const = 0;  //!< Returns whether the style applies on regions.
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  virtual bool isStrokeStyle()
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      const = 0;  //!< Returns whether the style applies on strokes.
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  // General functions
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  void setName(std::wstring name) {
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    m_name = name;
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  }  //!< Sets the style's user-defined name.
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  std::wstring getName() const {
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    return m_name;
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  }  //!< Returns the style's user-defined name.
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  /*! \detail
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The \a global name contains information about palette id.
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*/
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  void setGlobalName(std::wstring name) {
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    m_globalName = name;
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  }  //!< Sets the global name of the style.
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  std::wstring getGlobalName() const {
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    return m_globalName;
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  }  //!< Returns the global name of the style.
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  void setOriginalName(std::wstring name) {
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    m_originalName = name;
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  }  //!< If the style is originally copied from studio palette, set this.
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  std::wstring getOriginalName() const {
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    return m_originalName;
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  }  //!< Returns the original name of the style.
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  void setIsEditedFlag(bool edited) {
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    m_isEditedFromOriginal = edited;
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  }  //
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     // the
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  //!  style is edited from the original one.
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  bool getIsEditedFlag() const {
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    return m_isEditedFromOriginal;
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  }  //!< Returns whether the style is edited from the original from studio
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     //! palette
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  void assignNames(
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      const TColorStyle *src);  //!< Copies the style names from src.
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  //! \sa tcolorflags.h
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  unsigned int getFlags() const { return m_flags; }  //!< Sets color attributes.
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  void setFlags(unsigned int flags) {
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    m_flags = flags;
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  }  //!< Returns color attributes.
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  void setPickedPosition(const TPoint &pos, const int index = 0) {
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    m_pickedPosition.pos   = pos;
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    m_pickedPosition.frame = index;
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  }
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  void setPickedPosition(const PickedPosition &pos) { m_pickedPosition = pos; }
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  PickedPosition getPickedPosition() const { return m_pickedPosition; }
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  // Color-related functions
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  /*! \detail
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Raster or vector pattern image styles, for example, return false.
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*/
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  virtual bool hasMainColor() const {
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    return false;
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  }  //!< Returns whether the style has a reference \a main color.
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  virtual TPixel32 getMainColor() const {
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    return TPixel32::Black;
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  }  //!< Returns the style's main color, or black if none.
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  virtual void setMainColor(const TPixel32 &color) {
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  }  //!< Sets the main color, if it has one.
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  /*! \detail
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For example a bubble styles has two colors.
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By default it returns \p 1 if the style has only a main color else
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returns \p 0 if the style has no color.
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*/
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  virtual int getColorParamCount() const {
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    return hasMainColor() ? 1 : 0;
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  }  //!< Returns the number of colors (if any) of the style.
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  /*! \detail
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Returns the main color by default.
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*/
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  virtual TPixel32 getColorParamValue(int index) const {
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    return getMainColor();
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  }  //!< Returns the value of the color of index \e index.
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  virtual void setColorParamValue(int index, const TPixel32 &color) {
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    setMainColor(color);
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  }  //!< Sets the \a index-th color value.
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  virtual TPixel32 getAverageColor() const {
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    return getMainColor();
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  }  //!< Returns a color representing the average of all the style's colors
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  // Parameters-related functions
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  /*! \detail
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   For example: a the general cleanup style has two parameters, brightness and
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   contrast and
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   a black cleanup style has in addition a black and white threshold, therefore
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   4 parameters.
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*/
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  virtual int getParamCount() const {
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    return 0;
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  }  //!< Returns the number of parameters necessary
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     //!  to describe the style.
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  virtual ParamType getParamType(int paramIdx) const {
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    assert(0 <= paramIdx && paramIdx < getParamCount());
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    return DOUBLE;
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  }  //!< Returns the type of the specified parameter.
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  virtual bool hasParamDefault(int index) const {
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    return false;
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  }  //!< Value of parameter can be reset to default.
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  virtual void setParamDefault(int index) {
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    assert(false);
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  }  //!< Reset value of parameter to default.
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  virtual bool isParamDefault(int index) const {
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    return false;
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  }  //!< Check if current value of parameter equals to default
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  virtual void setParamValue(int index, bool value) {
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    assert(false);
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  }  //!< Assigns a value to the specified \p bool parameter.
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  virtual bool getParamValue(bool_tag, int index) const {
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    assert(false);
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    return bool();
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  }  //!< Retrieves the specified \p bool parameter value.
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  virtual void setParamValue(int index, int value) {
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    assert(false);
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  }  //!< Assigns a value to the specified \p int parameter.
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  virtual int getParamValue(int_tag, int index) const {
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    assert(false);
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    return int();
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  }  //!< Retrieves the specified \p int parameter value.
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  virtual void getParamRange(int index, int &min, int &max) const {
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    assert(false);
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  }  //!< Retrieves the specified \p int parameter range.
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  virtual void getParamRange(int pIndex, QStringList &stringItems) const {
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    assert(false);
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  }  //!< Returns a description of each supported enum or file
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  //!  extension value in text form.
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  virtual void setParamValue(int index, double value) {
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    assert(false);
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  }  //!< Assigns a value to the specified \p double parameter.
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  virtual double getParamValue(double_tag, int index) const {
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    assert(false);
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    return double();
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  }  //!< Retrieves the specified \p double parameter value.
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  virtual void getParamRange(int index, double &min, double &max) const {
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    assert(false);
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  }  //!< Retrieves the specified \p double parameter range.
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  virtual void setParamValue(int index, const TFilePath &fp) {
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    assert(false);
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  }  //!< Assigns a value to the specified \p TFilePath parameter.
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  virtual TFilePath getParamValue(TFilePath_tag, int index) const {
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    assert(false);
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    return TFilePath();
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  }  //!< Retrieves the specified \p TFilePath parameter value.
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  /*! \detail
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This function is provided to animate a palette style. Given two keyframe
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styles \p a and \p b, it calculates their linear interpolation at parameter
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\p t and assigns the result to this style instance.
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\param a    Style value at parameter <tt>t = 0</tt>.
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\param b    Style value at parameter <tt>t = 1</tt>.
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\param t    Interpolation parameter.
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*/
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  void assignBlend(const TColorStyle &a, const TColorStyle &b,
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                   double t);  //!< Assigns the linear interpolation between the
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                               //!  supplied styles.
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  // Description-related functions
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  /*! \detail
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For example for a stroke style we have "Constant", "Chain", "Rope", "Tulle",
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etc...
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*/
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  virtual QString getDescription()
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      const = 0;  //!< Return a brief description of the style.
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  virtual QString getParamNames(int index)
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      const;  //!< Return the string that identifies the \a index-th parameter.
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  // I/O-related  functions
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  virtual int getTagId()
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      const = 0;  //!< Returns an unique number representing the style.
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  virtual void getObsoleteTagIds(std::vector<int> &) const {};  //!< \deprecated</int>
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  void save(TOutputStreamInterface &) const;  //!< Calls the local
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                                              //! implementation of saveData()
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  //! passing it also the name and
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  //! the tagId of the style.
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  static TColorStyle *load(TInputStreamInterface &);  //!< Loads the style from
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                                                      //! disk. Calls the local
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  //! implementation of
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  //! loadData().
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  static TColorStyle *create(
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      int tagId);  //!< Creates a new style with identifier equal to \a tagId.
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  static void declare(
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      TColorStyle *style);  //!< Puts the style in the table of actual styles.
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  static void getAllTags(std::vector<int> &tags);</int>
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  // Misc functions
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  /*! \detail
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It is used when updates must be done after changes or creation of new styles.
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*/
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  void invalidateIcon() {
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    m_validIcon = false;
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  }  //!< Sets a flag that defines the style's icon validity.
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  virtual const TRaster32P &getIcon(
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      const TDimension &d);  //!< Returns an image representing the style.
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  bool isEnabled() const {
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    return m_enabled;
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  }  //!< Returns whether the style can be used.
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  void enable(bool on) {
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    m_enabled = on;
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  }  //!< Sets the style's \a enabled status
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  int getVersionNumber() const {
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    return m_versionNumber;
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  }  //!< Returns the version number of the style.
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protected:
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  virtual void makeIcon(const TDimension &d);
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  virtual void loadData(TInputStreamInterface &)        = 0;
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  virtual void saveData(TOutputStreamInterface &) const = 0;
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  virtual void loadData(int, TInputStreamInterface &) {
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  }  //!< \deprecated  Backward compatibility
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  void updateVersionNumber();
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protected:
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  TColorStyle &operator=(
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      const TColorStyle &other);  //!< Copies another style \a except its icon
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};
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//--------------------------------------------------------------------------
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#ifdef _WIN32
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template class DVAPI TSmartPointerT<tcolorstyle>;</tcolorstyle>
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#endif
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typedef TSmartPointerT<tcolorstyle> TColorStyleP;</tcolorstyle>
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#endif  // TCOLORSTYLES_H