Font.h

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//     ____   ______ __
//    / __ \ / ____// /
//   / /_/ // /    / /
//  / ____// /___ / /___   PixInsight Class Library
// /_/     \____//_____/   PCL 2.7.0
// ----------------------------------------------------------------------------
// pcl/Font.h - Released 2024-06-18T15:48:54Z
// ----------------------------------------------------------------------------
// This file is part of the PixInsight Class Library (PCL).
// PCL is a multiplatform C++ framework for development of PixInsight modules.
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// ----------------------------------------------------------------------------
 
#ifndef __PCL_Font_h
#define __PCL_Font_h
 
 
#ifndef __PCL_BUILDING_PIXINSIGHT_APPLICATION
 
#include <pcl/Defs.h>
 
#include <pcl/Rectangle.h>
#include <pcl/StringList.h>
#include <pcl/UIObject.h>
 
#endif   // __PCL_BUILDING_PIXINSIGHT_APPLICATION
 
namespace pcl
{
 
// ----------------------------------------------------------------------------
 
namespace FontFamily
{
   enum value_type
   {
      Default,       // default font
      SansSerif,     // sans serif font: Helvetica, Swiss, Arial
      Helvetica  = SansSerif,
      Swiss      = SansSerif,
      Serif,         // serif font: Times, Garamond
      Times      = Serif,
      Script,        // handwriting font: Script, Comic
      Monospace,     // fixed-pitch font: Courier, Vera Sans Mono
      TypeWriter = Monospace,
      Courier    = Monospace,
      Teletype   = Monospace,
      Decorative,    // decorative font: OldEnglish,
      OldEnglish = Decorative,
      Symbol         // math, greek, etc.: Symbol
   };
 
   String PCL_FUNC FamilyToFace( value_type family );
}
 
// ----------------------------------------------------------------------------
 
namespace FontWeight
{
   enum value_type
   {
      Thin           =  100,
      ExtraLight     =  200,
      UltraLight     =  ExtraLight,
      Light          =  300,
      Normal         =  400,
      Regular        =  Normal,
      Medium         =  500,
      SemiBold       =  600,
      DemiBold       =  SemiBold,
      Bold           =  700,
      ExtraBold      =  800,
      UltraBold      =  ExtraBold,
      Heavy          =  850,
      Black          =  900
   };
}
 
// ----------------------------------------------------------------------------
 
namespace FontStretch
{
   enum value_type
   {
      UltraCondensed =  50,
      ExtraCondensed =  62,
      Condensed      =  75,
      SemiCondensed  =  87,
      Unstretched    = 100,
      SemiExpanded   = 112,
      Expanded       = 125,
      ExtraExpanded  = 150,
      UltraExpanded  = 200
   };
}
 
// ----------------------------------------------------------------------------
 
#ifndef __PCL_BUILDING_PIXINSIGHT_APPLICATION
 
// ----------------------------------------------------------------------------
 
class PCL_CLASS Font : public UIObject
{
public:
 
   using family = FontFamily::value_type;
 
   using std_weight = FontWeight::value_type;
 
   using std_stretch = FontStretch::value_type;
 
   Font( family f = FontFamily::Default, double size = 12.0 );
 
   Font( const String& face, double size = 12.0 );
 
   Font( const Font& f ) : UIObject( f )
   {
   }
 
   Font( Font&& x ) : UIObject( std::move( x ) )
   {
   }
 
   ~Font() override
   {
   }
 
   Font& operator =( const Font& f )
   {
      SetHandle( f.handle );
      return *this;
   }
 
   Font& operator =( Font&& x )
   {
      Transfer( x );
      return *this;
   }
 
   static Font& Null();
 
   String Face() const;
 
   void SetFace( const String& );
 
   bool IsExactMatch() const;
 
   StringList AvailableWritingSystems() const
   {
      return AvailableFontWritingSystems( Face() );
   }
 
   StringList AvailableStyles() const
   {
      return AvailableFontStyles( Face() );
   }
 
   bool IsScalable( const String& style = String() ) const
   {
      return IsScalableFont( Face(), style );
   }
 
   Array<double> OptimalPointSizes( const String& style = String() ) const
   {
      return OptimalFontPointSizes( Face(), style );
   }
 
   int PixelSize() const;
 
   void SetPixelSize ( int );
 
   double PointSize() const;
 
   void SetPointSize( double );
 
   bool IsFixedPitch() const;
 
   bool IsFixedPitch( const String& style ) const
   {
      return IsFixedPitchFont( Face(), style );
   }
 
   void SetFixedPitch( bool = true );
 
   bool IsKerningEnabled() const;
 
   void EnableKerning( bool = true );
 
   void DisableKerning( bool = true );
 
   int StretchFactor() const;
 
   void SetStretchFactor( int );
 
   int Weight() const;
 
   int Weight( const String& style ) const
   {
      return FontWeight( Face(), style );
   }
 
   void SetWeight( int );
 
   bool IsBold() const
   {
      return Weight() >= FontWeight::Bold;
   }
 
   void SetBold( bool b = true )
   {
      SetWeight( b ? FontWeight::Bold : FontWeight::Normal );
   }
 
   bool IsItalic() const;
 
   bool IsItalic( const String& style ) const
   {
      return IsItalicFont( Face(), style );
   }
 
   void SetItalic( bool = true );
 
   bool IsUnderline() const;
 
   void SetUnderline( bool = true );
 
   bool IsOverline() const;
 
   void SetOverline( bool = true );
 
   bool IsStrikeOut() const;
 
   void SetStrikeOut( bool = true );
 
   int Ascent() const;
 
   int Descent() const;
 
   int Height() const;
 
   int LineSpacing() const;
 
   bool IsCharDefined( int ) const;
 
   int MaxWidth() const;
 
   int Width( const String& ) const;
 
   int Width( int ch ) const;
 
   Rect BoundingRect( const String& ) const;
 
   Rect TightBoundingRect( const String& ) const;
 
   static StringList AvailableFonts( const String& writingSystem = String() );
 
   static StringList AvailableFontWritingSystems( const String& font );
 
   static StringList AvailableFontStyles( const String& font );
 
   static Array<double> OptimalFontPointSizes( const String& font, const String& style = String() );
 
   static bool IsScalableFont( const String& font, const String& style = String() );
 
   static bool IsFixedPitchFont( const String& font, const String& style = String() );
 
   static bool IsItalicFont( const String& font, const String& style = String() );
 
   static int FontWeight( const String& font, const String& style = String() );
 
private:
 
   Font( void* h ) : UIObject( h )
   {
   }
 
   void* CloneHandle() const override;
 
   friend class InternalFontEnumerator;
   friend class GraphicsContextBase;
   friend class Control;
   friend class TreeBox;
};
 
// ----------------------------------------------------------------------------
 
#endif   // __PCL_BUILDING_PIXINSIGHT_APPLICATION
 
} // pcl
 
#endif   // __PCL_Font_h
 
// ----------------------------------------------------------------------------
// EOF pcl/Font.h - Released 2024-06-18T15:48:54Z