Implement support for markup labels for wxGTK wxButton.

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

diff --git a/include/wx/font.h b/include/wx/font.h
index 873ba84a4a77dce291d00be0a1003e194767e130..43968049b38eeb2779a50fc9138c78745d2f554c 100644 (file)
--- a/include/wx/font.h
+++ b/include/wx/font.h
@@ -25,10 +25,7 @@
 // forward declarations
 // ----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_FWD_CORE wxFontData;
-class WXDLLIMPEXP_FWD_CORE wxFontBase;
 class WXDLLIMPEXP_FWD_CORE wxFont;
-class WXDLLIMPEXP_FWD_CORE wxSize;
 
 // ----------------------------------------------------------------------------
 // font constants
@@ -69,6 +66,18 @@ enum wxFontWeight
     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
 {
@@ -113,7 +122,7 @@ class WXDLLIMPEXP_CORE wxFontBase : public wxGDIObject
 public:
     /*
         derived classes should provide the following ctors:
-    
+
     wxFont();
     wxFont(const wxString& nativeFontInfoString);
     wxFont(const wxNativeFontInfo& info);
@@ -132,7 +141,7 @@ public:
            const wxString& face = wxEmptyString,
            wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
     */
-    
+
     // creator function
     virtual ~wxFontBase();
 
@@ -214,7 +223,7 @@ public:
     virtual int GetPointSize() const = 0;
     virtual wxSize GetPixelSize() const;
     virtual bool IsUsingSizeInPixels() const;
-    virtual wxFontFamily GetFamily() const = 0;
+    wxFontFamily GetFamily() const;
     virtual wxFontStyle GetStyle() const = 0;
     virtual wxFontWeight GetWeight() const = 0;
     virtual bool GetUnderlined() const = 0;
@@ -243,25 +252,44 @@ public:
     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);
+
+
     // translate the fonts into human-readable string (i.e. GetStyleString()
     // will return "wxITALIC" for an italic font, ...)
     wxString GetFamilyString() const;
     wxString GetStyleString() const;
     wxString GetWeightString() const;
 
-    // Unofficial API, don't use
-    virtual void SetNoAntiAliasing( bool WXUNUSED(no) = true ) {  }
-    virtual bool GetNoAntiAliasing() const { return false; }
-
     // the default encoding is used for creating all fonts with default
     // encoding parameter
     static wxFontEncoding GetDefaultEncoding() { return ms_encodingDefault; }
     static void SetDefaultEncoding(wxFontEncoding encoding);
 
+    // this doesn't do anything and is kept for compatibility only
+#ifdef 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:
     // 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;
+
 private:
     // the currently default encoding: by default, it's the default system
     // encoding, but may be changed by the application using
@@ -297,12 +325,20 @@ WXDLLIMPEXP_CORE bool wxFromString(const wxString& str, wxFontBase* font);
 #define wxDECLARE_COMMON_FONT_METHODS() \
     wxDECLARE_FONT_COMPAT_SETTER \
  \
+    /* functions for modifying font in place */ \
+    wxFont& MakeBold(); \
+    wxFont& MakeItalic(); \
+    wxFont& MakeUnderlined(); \
+    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 MakeBold() const; \
-    wxFont MakeItalic() const; \
-    wxFont MakeLarger() const { return Scale(1.2f); } \
-    wxFont MakeSmaller() const { return Scale(1/1.2f); } \
-    wxFont Scale(float x) const
+    wxFont Bold() const; \
+    wxFont Italic() const; \
+    wxFont Underlined() 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(__WXPALMOS__)
@@ -366,6 +402,11 @@ extern WXDLLIMPEXP_DATA_CORE(wxFontList*)    wxTheFontList;
 // 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)
@@ -379,6 +420,8 @@ inline bool operator==(wxFontWeight s, wxDeprecatedGUIConstants t)
 inline bool operator!=(wxFontWeight s, wxDeprecatedGUIConstants t)
 { return !(s == t); }
 
+#endif // // wxCOMPILER_NO_OVERLOAD_ON_ENUM
+
 #endif // FUTURE_WXWIN_COMPATIBILITY_3_0
 
 #endif