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[wxWidgets.git] / include / wx / font.h

diff --git a/include/wx/font.h b/include/wx/font.h
index a95b73d002623b0e049cf991e19809589979af7d..27f42bbca8588a81560a421699d1ade932f91657 100644 (file)
--- a/include/wx/font.h
+++ b/include/wx/font.h
@@ -5,17 +5,13 @@
 // Modified by:
 // Created:     20.09.99
 // RCS-ID:      $Id$
 // Modified by:
 // Created:     20.09.99
 // RCS-ID:      $Id$

-// Copyright:   (c) wxWindows team
-// Licence:     wxWindows license
+// Copyright:   (c) wxWidgets team
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_FONT_H_BASE_
 #define _WX_FONT_H_BASE_
 
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_FONT_H_BASE_
 #define _WX_FONT_H_BASE_
 

-#ifdef __GNUG__
-    #pragma interface "fontbase.h"
-#endif
-

 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------


@@ -23,14 +19,13 @@
 #include "wx/defs.h"        // for wxDEFAULT &c
 #include "wx/fontenc.h"     // the font encoding constants
 #include "wx/gdiobj.h"      // the base class
 #include "wx/defs.h"        // for wxDEFAULT &c
 #include "wx/fontenc.h"     // the font encoding constants
 #include "wx/gdiobj.h"      // the base class

+#include "wx/gdicmn.h"      // for wxGDIObjListBase

 
 // ----------------------------------------------------------------------------
 // forward declarations
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // forward declarations
 // ----------------------------------------------------------------------------
 

-class WXDLLEXPORT wxFontData;
-class WXDLLEXPORT wxFontBase;
-class WXDLLEXPORT wxFont;
+class WXDLLIMPEXP_FWD_CORE wxFont;

 
 // ----------------------------------------------------------------------------
 // font constants
 
 // ----------------------------------------------------------------------------
 // font constants


@@ -71,51 +66,171 @@ enum wxFontWeight
     wxFONTWEIGHT_MAX
 };
 
     wxFONTWEIGHT_MAX
 };
 

+// Symbolic font sizes as defined in CSS specification.
+enum wxFontSymbolicSize
+{
+    wxFONTSIZE_XX_SMALL = -3,
+    wxFONTSIZE_X_SMALL,
+    wxFONTSIZE_SMALL,
+    wxFONTSIZE_MEDIUM,
+    wxFONTSIZE_LARGE,
+    wxFONTSIZE_X_LARGE,
+    wxFONTSIZE_XX_LARGE
+};
+
+// the font flag bits for the new font ctor accepting one combined flags word
+enum wxFontFlag
+{
+    // no special flags: font with default weight/slant/anti-aliasing
+    wxFONTFLAG_DEFAULT          = 0,
+
+    // slant flags (default: no slant)
+    wxFONTFLAG_ITALIC           = 1 << 0,
+    wxFONTFLAG_SLANT            = 1 << 1,
+
+    // weight flags (default: medium)
+    wxFONTFLAG_LIGHT            = 1 << 2,
+    wxFONTFLAG_BOLD             = 1 << 3,
+
+    // anti-aliasing flag: force on or off (default: the current system default)
+    wxFONTFLAG_ANTIALIASED      = 1 << 4,
+    wxFONTFLAG_NOT_ANTIALIASED  = 1 << 5,
+
+    // underlined/strikethrough flags (default: no lines)
+    wxFONTFLAG_UNDERLINED       = 1 << 6,
+    wxFONTFLAG_STRIKETHROUGH    = 1 << 7,
+
+    // the mask of all currently used flags
+    wxFONTFLAG_MASK = wxFONTFLAG_ITALIC             |
+                      wxFONTFLAG_SLANT              |
+                      wxFONTFLAG_LIGHT              |
+                      wxFONTFLAG_BOLD               |
+                      wxFONTFLAG_ANTIALIASED        |
+                      wxFONTFLAG_NOT_ANTIALIASED    |
+                      wxFONTFLAG_UNDERLINED         |
+                      wxFONTFLAG_STRIKETHROUGH
+};
+

 // ----------------------------------------------------------------------------
 // wxFontBase represents a font object
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 // wxFontBase represents a font object
 // ----------------------------------------------------------------------------
 

-class WXDLLEXPORT wxFontRefData;
-struct WXDLLEXPORT wxNativeFontInfo;
+class WXDLLIMPEXP_FWD_CORE wxNativeFontInfo;

 
 

-class WXDLLEXPORT wxFontBase : public wxGDIObject
+class WXDLLIMPEXP_CORE wxFontBase : public wxGDIObject

 {
 public:
 {
 public:

+    /*
+        derived classes should provide the following ctors:
+
+    wxFont();
+    wxFont(const wxString& nativeFontInfoString);
+    wxFont(const wxNativeFontInfo& info);
+    wxFont(int size,
+           wxFontFamily family,
+           wxFontStyle style,
+           wxFontWeight weight,
+           bool underlined = false,
+           const wxString& face = wxEmptyString,
+           wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
+    wxFont(const wxSize& pixelSize,
+           wxFontFamily family,
+           wxFontStyle style,
+           wxFontWeight weight,
+           bool underlined = false,
+           const wxString& face = wxEmptyString,
+           wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
+    */
+

     // creator function
     virtual ~wxFontBase();
 
     // creator function
     virtual ~wxFontBase();
 

+
+#if FUTURE_WXWIN_COMPATIBILITY_3_0

     // from the font components
     static wxFont *New(
         int pointSize,              // size of the font in points
         int family,                 // see wxFontFamily enum
         int style,                  // see wxFontStyle enum
         int weight,                 // see wxFontWeight enum
     // from the font components
     static wxFont *New(
         int pointSize,              // size of the font in points
         int family,                 // see wxFontFamily enum
         int style,                  // see wxFontStyle enum
         int weight,                 // see wxFontWeight enum

-        bool underlined = FALSE,    // not underlined by default
+        bool underlined = false,    // not underlined by default
+        const wxString& face = wxEmptyString,              // facename
+        wxFontEncoding encoding = wxFONTENCODING_DEFAULT)  // ISO8859-X, ...
+        { return New(pointSize, (wxFontFamily)family, (wxFontStyle)style,
+                     (wxFontWeight)weight, underlined, face, encoding); }
+
+    // from the font components
+    static wxFont *New(
+        const wxSize& pixelSize,    // size of the font in pixels
+        int family,                 // see wxFontFamily enum
+        int style,                  // see wxFontStyle enum
+        int weight,                 // see wxFontWeight enum
+        bool underlined = false,    // not underlined by default
+        const wxString& face = wxEmptyString,              // facename
+        wxFontEncoding encoding = wxFONTENCODING_DEFAULT)  // ISO8859-X, ...
+        { return New(pixelSize, (wxFontFamily)family, (wxFontStyle)style,
+                     (wxFontWeight)weight, underlined, face, encoding); }
+#endif
+
+    // from the font components
+    static wxFont *New(
+        int pointSize,              // size of the font in points
+        wxFontFamily family,        // see wxFontFamily enum
+        wxFontStyle style,          // see wxFontStyle enum
+        wxFontWeight weight,        // see wxFontWeight enum
+        bool underlined = false,    // not underlined by default

         const wxString& face = wxEmptyString,              // facename
         wxFontEncoding encoding = wxFONTENCODING_DEFAULT); // ISO8859-X, ...
 
         const wxString& face = wxEmptyString,              // facename
         wxFontEncoding encoding = wxFONTENCODING_DEFAULT); // ISO8859-X, ...
 

+    // from the font components
+    static wxFont *New(
+        const wxSize& pixelSize,    // size of the font in pixels
+        wxFontFamily family,        // see wxFontFamily enum
+        wxFontStyle style,          // see wxFontStyle enum
+        wxFontWeight weight,        // see wxFontWeight enum
+        bool underlined = false,    // not underlined by default
+        const wxString& face = wxEmptyString,              // facename
+        wxFontEncoding encoding = wxFONTENCODING_DEFAULT); // ISO8859-X, ...
+
+    // from the font components but using the font flags instead of separate
+    // parameters for each flag
+    static wxFont *New(int pointSize,
+                       wxFontFamily family,
+                       int flags = wxFONTFLAG_DEFAULT,
+                       const wxString& face = wxEmptyString,
+                       wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
+
+
+    // from the font components but using the font flags instead of separate
+    // parameters for each flag
+    static wxFont *New(const wxSize& pixelSize,
+                       wxFontFamily family,
+                       int flags = wxFONTFLAG_DEFAULT,
+                       const wxString& face = wxEmptyString,
+                       wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
+

     // from the (opaque) native font description object
     static wxFont *New(const wxNativeFontInfo& nativeFontDesc);
 
     // from the string representation of wxNativeFontInfo
     static wxFont *New(const wxString& strNativeFontDesc);
 
     // from the (opaque) native font description object
     static wxFont *New(const wxNativeFontInfo& nativeFontDesc);
 
     // from the string representation of wxNativeFontInfo
     static wxFont *New(const wxString& strNativeFontDesc);
 

-    // was the font successfully created?
-    bool Ok() const { return m_refData != NULL; }
-

     // comparison
     // comparison

-    bool operator == (const wxFont& font) const;
-    bool operator != (const wxFont& font) const;
+    bool operator==(const wxFont& font) const;
+    bool operator!=(const wxFont& font) const { return !(*this == font); }

 
     // accessors: get the font characteristics
     virtual int GetPointSize() const = 0;
 
     // accessors: get the font characteristics
     virtual int GetPointSize() const = 0;

-    virtual int GetFamily() const = 0;
-    virtual int GetStyle() const = 0;
-    virtual int GetWeight() const = 0;
+    virtual wxSize GetPixelSize() const;
+    virtual bool IsUsingSizeInPixels() const;
+    wxFontFamily GetFamily() const;
+    virtual wxFontStyle GetStyle() const = 0;
+    virtual wxFontWeight GetWeight() const = 0;

     virtual bool GetUnderlined() const = 0;
     virtual bool GetUnderlined() const = 0;

+    virtual bool GetStrikethrough() const { return false; }

     virtual wxString GetFaceName() const = 0;
     virtual wxFontEncoding GetEncoding() const = 0;
     virtual wxString GetFaceName() const = 0;
     virtual wxFontEncoding GetEncoding() const = 0;

-    virtual wxNativeFontInfo *GetNativeFontInfo() const;
+    virtual const wxNativeFontInfo *GetNativeFontInfo() const = 0;

 
     virtual bool IsFixedWidth() const;
 
 
     virtual bool IsFixedWidth() const;
 


@@ -124,16 +239,33 @@ public:
 
     // change the font characteristics
     virtual void SetPointSize( int pointSize ) = 0;
 
     // change the font characteristics
     virtual void SetPointSize( int pointSize ) = 0;

-    virtual void SetFamily( int family ) = 0;
-    virtual void SetStyle( int style ) = 0;
-    virtual void SetWeight( int weight ) = 0;
-    virtual void SetFaceName( const wxString& faceName ) = 0;
+    virtual void SetPixelSize( const wxSize& pixelSize );
+    virtual void SetFamily( wxFontFamily family ) = 0;
+    virtual void SetStyle( wxFontStyle style ) = 0;
+    virtual void SetWeight( wxFontWeight weight ) = 0;
+

     virtual void SetUnderlined( bool underlined ) = 0;
     virtual void SetUnderlined( bool underlined ) = 0;

+    virtual void SetStrikethrough( bool WXUNUSED(strikethrough) ) {}

     virtual void SetEncoding(wxFontEncoding encoding) = 0;
     virtual void SetEncoding(wxFontEncoding encoding) = 0;

-    virtual void SetNativeFontInfo(const wxNativeFontInfo& info);
+    virtual bool SetFaceName( const wxString& faceName );
+    void SetNativeFontInfo(const wxNativeFontInfo& info)
+        { DoSetNativeFontInfo(info); }
+
+    bool SetNativeFontInfo(const wxString& info);
+    bool SetNativeFontInfoUserDesc(const wxString& info);
+
+    // Symbolic font sizes support: set the font size to "large" or "very
+    // small" either absolutely (i.e. compared to the default font size) or
+    // relatively to the given font size.
+    void SetSymbolicSize(wxFontSymbolicSize size);
+    void SetSymbolicSizeRelativeTo(wxFontSymbolicSize size, int base)
+    {
+        SetPointSize(AdjustToSymbolicSize(size, base));
+    }
+
+    // Adjust the base size in points according to symbolic size.
+    static int AdjustToSymbolicSize(wxFontSymbolicSize size, int base);

 
 

-    void SetNativeFontInfo(const wxString& info);
-    void SetNativeFontInfoUserDesc(const wxString& info);

 
     // translate the fonts into human-readable string (i.e. GetStyleString()
     // will return "wxITALIC" for an italic font, ...)
 
     // translate the fonts into human-readable string (i.e. GetStyleString()
     // will return "wxITALIC" for an italic font, ...)


@@ -143,46 +275,181 @@ public:
 
     // the default encoding is used for creating all fonts with default
     // encoding parameter
 
     // the default encoding is used for creating all fonts with default
     // encoding parameter

-    static wxFontEncoding GetDefaultEncoding()
-        { return ms_encodingDefault; }
-    static void SetDefaultEncoding(wxFontEncoding encoding)
-        { ms_encodingDefault = encoding; }
+    static wxFontEncoding GetDefaultEncoding() { return ms_encodingDefault; }
+    static void SetDefaultEncoding(wxFontEncoding encoding);
+
+    // this doesn't do anything and is kept for compatibility only
+#if WXWIN_COMPATIBILITY_2_8
+    wxDEPRECATED_INLINE(void SetNoAntiAliasing(bool no = true), wxUnusedVar(no););
+    wxDEPRECATED_INLINE(bool GetNoAntiAliasing() const, return false;)
+#endif // WXWIN_COMPATIBILITY_2_8

 
 protected:
 
 protected:

-    // get the internal data
-    wxFontRefData *GetFontData() const
-        { return (wxFontRefData *)m_refData; }
+    // the function called by both overloads of SetNativeFontInfo()
+    virtual void DoSetNativeFontInfo(const wxNativeFontInfo& info);
+
+    // The function called by public GetFamily(): it can return
+    // wxFONTFAMILY_UNKNOWN unlike the public method (see comment there).
+    virtual wxFontFamily DoGetFamily() const = 0;
+
+
+    // Helper functions to recover wxFONTSTYLE/wxFONTWEIGHT and underlined flg
+    // values from flags containing a combination of wxFONTFLAG_XXX.
+    static wxFontStyle GetStyleFromFlags(int flags)
+    {
+        return flags & wxFONTFLAG_ITALIC
+                        ? wxFONTSTYLE_ITALIC
+                        : flags & wxFONTFLAG_SLANT
+                            ? wxFONTSTYLE_SLANT
+                            : wxFONTSTYLE_NORMAL;
+    }
+
+    static wxFontWeight GetWeightFromFlags(int flags)
+    {
+        return flags & wxFONTFLAG_LIGHT
+                        ? wxFONTWEIGHT_LIGHT
+                        : flags & wxFONTFLAG_BOLD
+                            ? wxFONTWEIGHT_BOLD
+                            : wxFONTWEIGHT_NORMAL;
+    }
+
+    static bool GetUnderlinedFromFlags(int flags)
+    {
+        return (flags & wxFONTFLAG_UNDERLINED) != 0;
+    }
+

 
 private:
     // the currently default encoding: by default, it's the default system
     // encoding, but may be changed by the application using
     // SetDefaultEncoding() to make all subsequent fonts created without
 
 private:
     // the currently default encoding: by default, it's the default system
     // encoding, but may be changed by the application using
     // SetDefaultEncoding() to make all subsequent fonts created without

-    // specifing encoding parameter using this encoding
+    // specifying encoding parameter using this encoding

     static wxFontEncoding ms_encodingDefault;
 };
 
     static wxFontEncoding ms_encodingDefault;
 };
 

+// wxFontBase <-> wxString utilities, used by wxConfig
+WXDLLIMPEXP_CORE wxString wxToString(const wxFontBase& font);
+WXDLLIMPEXP_CORE bool wxFromString(const wxString& str, wxFontBase* font);
+
+
+#if FUTURE_WXWIN_COMPATIBILITY_3_0
+#define wxDECLARE_FONT_COMPAT_SETTER   \
+    wxDEPRECATED_FUTURE( void SetFamily(int family) ) \
+        { SetFamily((wxFontFamily)family); } \
+    wxDEPRECATED_FUTURE( void SetStyle(int style) ) \
+        { SetStyle((wxFontStyle)style); } \
+    wxDEPRECATED_FUTURE( void SetWeight(int weight) ) \
+        { SetWeight((wxFontWeight)weight); } \
+    wxDEPRECATED_FUTURE( void SetFamily(wxDeprecatedGUIConstants family) ) \
+        { SetFamily((wxFontFamily)family); } \
+    wxDEPRECATED_FUTURE( void SetStyle(wxDeprecatedGUIConstants style) ) \
+        { SetStyle((wxFontStyle)style); } \
+    wxDEPRECATED_FUTURE( void SetWeight(wxDeprecatedGUIConstants weight) ) \
+        { SetWeight((wxFontWeight)weight); }
+#else
+#define wxDECLARE_FONT_COMPAT_SETTER  /*empty*/
+#endif
+
+// this macro must be used in all derived wxFont classes declarations
+#define wxDECLARE_COMMON_FONT_METHODS() \
+    wxDECLARE_FONT_COMPAT_SETTER \
+ \
+    /* functions for modifying font in place */ \
+    wxFont& MakeBold(); \
+    wxFont& MakeItalic(); \
+    wxFont& MakeUnderlined(); \
+    wxFont& MakeStrikethrough(); \
+    wxFont& MakeLarger() { return Scale(1.2f); } \
+    wxFont& MakeSmaller() { return Scale(1/1.2f); } \
+    wxFont& Scale(float x); \
+    /* functions for creating fonts based on this one */ \
+    wxFont Bold() const; \
+    wxFont Italic() const; \
+    wxFont Underlined() const; \
+    wxFont Strikethrough() const; \
+    wxFont Larger() const { return Scaled(1.2f); } \
+    wxFont Smaller() const { return Scaled(1/1.2f); } \
+    wxFont Scaled(float x) const
+

 // include the real class declaration
 #if defined(__WXMSW__)
     #include "wx/msw/font.h"
 #elif defined(__WXMOTIF__)
     #include "wx/motif/font.h"
 // include the real class declaration
 #if defined(__WXMSW__)
     #include "wx/msw/font.h"
 #elif defined(__WXMOTIF__)
     #include "wx/motif/font.h"

-#elif defined(__WXGTK__)
+#elif defined(__WXGTK20__)

     #include "wx/gtk/font.h"
     #include "wx/gtk/font.h"

-#elif defined(__WXMGL__)
-    #include "wx/mgl/font.h"
+#elif defined(__WXGTK__)
+    #include "wx/gtk1/font.h"
+#elif defined(__WXX11__)
+    #include "wx/x11/font.h"
+#elif defined(__WXDFB__)
+    #include "wx/dfb/font.h"

 #elif defined(__WXMAC__)
 #elif defined(__WXMAC__)

-    #include "wx/mac/font.h"
+    #include "wx/osx/font.h"
+#elif defined(__WXCOCOA__)
+    #include "wx/cocoa/font.h"

 #elif defined(__WXPM__)
     #include "wx/os2/font.h"
 #elif defined(__WXPM__)
     #include "wx/os2/font.h"

-#elif defined(__WXSTUBS__)
-    #include "wx/stubs/font.h"

 #endif
 
 #endif
 

-// ----------------------------------------------------------------------------
-// macros
-// ----------------------------------------------------------------------------
+class WXDLLIMPEXP_CORE wxFontList: public wxGDIObjListBase
+{
+public:
+    wxFont *FindOrCreateFont(int pointSize,
+                             wxFontFamily family,
+                             wxFontStyle style,
+                             wxFontWeight weight,
+                             bool underline = false,
+                             const wxString& face = wxEmptyString,
+                             wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
+
+#if FUTURE_WXWIN_COMPATIBILITY_3_0
+     wxFont *FindOrCreateFont(int pointSize, int family, int style, int weight,
+                              bool underline = false,
+                              const wxString& face = wxEmptyString,
+                              wxFontEncoding encoding = wxFONTENCODING_DEFAULT)
+        { return FindOrCreateFont(pointSize, (wxFontFamily)family, (wxFontStyle)style,
+                                  (wxFontWeight)weight, underline, face, encoding); }
+#endif
+
+#if WXWIN_COMPATIBILITY_2_6
+    wxDEPRECATED( void AddFont(wxFont*) );
+    wxDEPRECATED( void RemoveFont(wxFont*) );
+#endif
+};
+
+extern WXDLLIMPEXP_DATA_CORE(wxFontList*)    wxTheFontList;
+
+
+// provide comparison operators to allow code such as
+//
+//      if ( font.GetStyle() == wxFONTSTYLE_SLANT )
+//
+// to compile without warnings which it would otherwise provoke from some
+// compilers as it compares elements of different enums
+#if FUTURE_WXWIN_COMPATIBILITY_3_0
+
+// Unfortunately some compilers have ambiguity issues when enum comparisons are
+// overloaded so we have to disable the overloads in this case, see
+// wxCOMPILER_NO_OVERLOAD_ON_ENUM definition in wx/platform.h for more details.
+#ifndef wxCOMPILER_NO_OVERLOAD_ON_ENUM
+
+inline bool operator==(wxFontFamily s, wxDeprecatedGUIConstants t)
+{ return static_cast<int>(s) == static_cast<int>(t); }
+inline bool operator!=(wxFontFamily s, wxDeprecatedGUIConstants t)
+{ return !(s == t); }
+inline bool operator==(wxFontStyle s, wxDeprecatedGUIConstants t)
+{ return static_cast<int>(s) == static_cast<int>(t); }
+inline bool operator!=(wxFontStyle s, wxDeprecatedGUIConstants t)
+{ return !(s == t); }
+inline bool operator==(wxFontWeight s, wxDeprecatedGUIConstants t)
+{ return static_cast<int>(s) == static_cast<int>(t); }
+inline bool operator!=(wxFontWeight s, wxDeprecatedGUIConstants t)
+{ return !(s == t); }
+
+#endif // // wxCOMPILER_NO_OVERLOAD_ON_ENUM

 
 

-#define M_FONTDATA GetFontData()
+#endif // FUTURE_WXWIN_COMPATIBILITY_3_0

 
 #endif
     // _WX_FONT_H_BASE_
 
 #endif
     // _WX_FONT_H_BASE_