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

diff --git a/include/wx/fontutil.h b/include/wx/fontutil.h
index de51565a22979e29e2d8bd474265da4e4d6dcb31..3e485e569a413694aaf75ee47adb87cde32f25b7 100644 (file)
--- a/include/wx/fontutil.h
+++ b/include/wx/fontutil.h
@@ -5,18 +5,18 @@
 // Modified by:
 // Created:     05.11.99
 // RCS-ID:      $Id$
 // Modified by:
 // Created:     05.11.99
 // RCS-ID:      $Id$

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

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-// General note: this header is private to wxWindows and is not supposed to be
+// General note: this header is private to wxWidgets and is not supposed to be

 // included by user code. The functions declared here are implemented in
 // msw/fontutil.cpp for Windows, unix/fontutil.cpp for GTK/Motif &c.
 
 #ifndef _WX_FONTUTIL_H_
 #define _WX_FONTUTIL_H_
 
 // included by user code. The functions declared here are implemented in
 // msw/fontutil.cpp for Windows, unix/fontutil.cpp for GTK/Motif &c.
 
 #ifndef _WX_FONTUTIL_H_
 #define _WX_FONTUTIL_H_
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

     #pragma interface "fontutil.h"
 #endif
 
     #pragma interface "fontutil.h"
 #endif
 


@@ -26,48 +26,193 @@
 
 #include "wx/font.h"        // for wxFont and wxFontEncoding
 
 
 #include "wx/font.h"        // for wxFont and wxFontEncoding
 

-// for our purposes here, GDK and X are identical
-#if defined(__WXGTK__) || defined(__X__)
-    #define _WX_X_FONTLIKE
+#if defined(__WXMSW__) && !defined(__PALMOS__)
+    #include "wx/msw/wrapwin.h"

 #endif
 
 #endif
 

+struct WXDLLEXPORT wxNativeEncodingInfo;
+
+#if defined(_WX_X_FONTLIKE)
+
+// the symbolic names for the XLFD fields (with examples for their value)
+//
+// NB: we suppose that the font always starts with the empty token (font name
+//     registry field) as we never use nor generate it anyhow
+enum wxXLFDField
+{
+    wxXLFD_FOUNDRY,     // adobe
+    wxXLFD_FAMILY,      // courier, times, ...
+    wxXLFD_WEIGHT,      // black, bold, demibold, medium, regular, light
+    wxXLFD_SLANT,       // r/i/o (roman/italique/oblique)
+    wxXLFD_SETWIDTH,    // condensed, expanded, ...
+    wxXLFD_ADDSTYLE,    // whatever - usually nothing
+    wxXLFD_PIXELSIZE,   // size in pixels
+    wxXLFD_POINTSIZE,   // size in points
+    wxXLFD_RESX,        // 72, 75, 100, ...
+    wxXLFD_RESY,
+    wxXLFD_SPACING,     // m/p/c (monospaced/proportional/character cell)
+    wxXLFD_AVGWIDTH,    // average width in 1/10 pixels
+    wxXLFD_REGISTRY,    // iso8859, rawin, koi8, ...
+    wxXLFD_ENCODING,    // 1, r, r, ...
+    wxXLFD_MAX
+};
+
+#endif // _WX_X_FONTLIKE
+

 // ----------------------------------------------------------------------------
 // types
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 // types
 // ----------------------------------------------------------------------------
 

-// This private structure specifies all the parameters needed to create a font
-// with the given encoding on this platform.
-//
-// Under X, it contains the last 2 elements of the font specifications
-// (registry and encoding).
-//
-// Under Windows, it contains a number which is one of predefined CHARSET_XXX
-// values.
+// wxNativeFontInfo is platform-specific font representation: this struct
+// should be considered as opaque font description only used by the native
+// functions, the user code can only get the objects of this type from
+// somewhere and pass it somewhere else (possibly save them somewhere using
+// ToString() and restore them using FromString())

 //
 //

-// Under all platforms it also contains a facename string which should be
-// used, if not empty, to create fonts in this encoding (this is the only way
-// to create a font of non-standard encoding (like KOI8) under Windows - the
-// facename specifies the encoding then)
-
-struct WXDLLEXPORT wxNativeEncodingInfo
+// NB: it is a POD currently for max efficiency but if it continues to grow
+//     further it might make sense to make it a real class with virtual methods
+struct WXDLLEXPORT wxNativeFontInfo

 {
 {

-    wxString facename;          // may be empty meaning "any"
-
-#if defined(__WXMSW__) || defined(__WXPM__) || defined(__WXMAC__)
-    wxNativeEncodingInfo() { charset = 0; /* ANSI_CHARSET */ }
-
-    int      charset;
+#if wxUSE_PANGO
+    PangoFontDescription *description;

 #elif defined(_WX_X_FONTLIKE)
 #elif defined(_WX_X_FONTLIKE)

-    wxString xregistry,
-             xencoding;
+    // the members can't be accessed directly as we only parse the
+    // xFontName on demand
+private:
+    // the components of the XLFD
+    wxString     fontElements[wxXLFD_MAX];
+
+    // the full XLFD
+    wxString     xFontName;
+
+    // true until SetXFontName() is called
+    bool         m_isDefault;
+
+    // return true if we have already initialized fontElements
+    inline bool HasElements() const;
+
+public:
+    // init the elements from an XLFD, return true if ok
+    bool FromXFontName(const wxString& xFontName);
+
+    // return false if we were never initialized with a valid XLFD
+    bool IsDefault() const { return m_isDefault; }
+
+    // return the XLFD (using the fontElements if necessary)
+    wxString GetXFontName() const;
+
+    // get the given XFLD component
+    wxString GetXFontComponent(wxXLFDField field) const;
+
+    // change the font component
+    void SetXFontComponent(wxXLFDField field, const wxString& value);
+
+    // set the XFLD
+    void SetXFontName(const wxString& xFontName);
+#elif defined(__WXMSW__) && !defined(__PALMOS__)
+    LOGFONT      lf;
+#elif defined(__WXPM__)
+    // OS/2 native structures that define a font
+    FATTRS       fa;
+    FONTMETRICS  fm;
+    FACENAMEDESC fn;
+#else // other platforms
+    //
+    //  This is a generic implementation that should work on all ports
+    //  without specific support by the port.
+    //
+    #define wxNO_NATIVE_FONTINFO
+
+    int           pointSize;
+    wxFontFamily  family;
+    wxFontStyle   style;
+    wxFontWeight  weight;
+    bool          underlined;
+    wxString      faceName;
+    wxFontEncoding encoding;
+#endif // platforms
+
+    // default ctor (default copy ctor is ok)
+    wxNativeFontInfo() { Init(); }
+
+#if wxUSE_PANGO
+private:
+    void Init(const wxNativeFontInfo& info);
+    void Free();
+
+public:
+    wxNativeFontInfo(const wxNativeFontInfo& info) { Init(info); }
+    ~wxNativeFontInfo() { Free(); }
+
+    wxNativeFontInfo& operator=(const wxNativeFontInfo& info)
+    {
+        Free();
+        Init(info);
+        return *this;
+    }
+#endif // wxUSE_PANGO
+
+    // reset to the default state
+    void Init();
+
+    // init with the parameters of the given font
+    void InitFromFont(const wxFont& font)
+    {
+        // translate all font parameters
+        SetStyle((wxFontStyle)font.GetStyle());
+        SetWeight((wxFontWeight)font.GetWeight());
+        SetUnderlined(font.GetUnderlined());
+#if defined(__WXMSW__)
+        if ( font.IsUsingSizeInPixels() )
+            SetPixelSize(font.GetPixelSize());
+        else
+        SetPointSize(font.GetPointSize());

 #else
 #else

-    #error "Unsupported toolkit"
+        SetPointSize(font.GetPointSize());

 #endif
 
 #endif
 

-    // this struct is saved in config by wxFontMapper, so it should know to
-    // serialise itself (implemented in platform-specific code)
+        // set the family/facename
+        SetFamily((wxFontFamily)font.GetFamily());
+        const wxString& facename = font.GetFaceName();
+        if ( !facename.empty() )
+        {
+            SetFaceName(facename);
+        }
+
+        // deal with encoding now (it may override the font family and facename
+        // so do it after setting them)
+        SetEncoding(font.GetEncoding());
+    }
+
+    // accessors and modifiers for the font elements
+    int GetPointSize() const;
+    wxSize GetPixelSize() const;
+    wxFontStyle GetStyle() const;
+    wxFontWeight GetWeight() const;
+    bool GetUnderlined() const;
+    wxString GetFaceName() const;
+    wxFontFamily GetFamily() const;
+    wxFontEncoding GetEncoding() const;
+
+    void SetPointSize(int pointsize);
+    void SetPixelSize(const wxSize& pixelSize);
+    void SetStyle(wxFontStyle style);
+    void SetWeight(wxFontWeight weight);
+    void SetUnderlined(bool underlined);
+    void SetFaceName(wxString facename);
+    void SetFamily(wxFontFamily family);
+    void SetEncoding(wxFontEncoding encoding);
+
+    // it is important to be able to serialize wxNativeFontInfo objects to be
+    // able to store them (in config file, for example)

     bool FromString(const wxString& s);
     wxString ToString() const;
     bool FromString(const wxString& s);
     wxString ToString() const;

+
+    // we also want to present the native font descriptions to the user in some
+    // human-readable form (it is not platform independent neither, but can
+    // hopefully be understood by the user)
+    bool FromUserString(const wxString& s);
+    wxString ToUserString() const;

 };
 
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------


@@ -75,13 +220,13 @@ struct WXDLLEXPORT wxNativeEncodingInfo
 // ----------------------------------------------------------------------------
 
 // translate a wxFontEncoding into native encoding parameter (defined above),
 // ----------------------------------------------------------------------------
 
 // translate a wxFontEncoding into native encoding parameter (defined above),

-// returning TRUE if an (exact) macth could be found, FALSE otherwise (without
+// returning true if an (exact) macth could be found, false otherwise (without

 // attempting any substitutions)
 extern bool wxGetNativeFontEncoding(wxFontEncoding encoding,
                                     wxNativeEncodingInfo *info);
 
 // test for the existence of the font described by this facename/encoding,
 // attempting any substitutions)
 extern bool wxGetNativeFontEncoding(wxFontEncoding encoding,
                                     wxNativeEncodingInfo *info);
 
 // test for the existence of the font described by this facename/encoding,

-// return TRUE if such font(s) exist, FALSE otherwise
+// return true if such font(s) exist, false otherwise

 extern bool wxTestFontEncoding(const wxNativeEncodingInfo& info);
 
 // ----------------------------------------------------------------------------
 extern bool wxTestFontEncoding(const wxNativeEncodingInfo& info);
 
 // ----------------------------------------------------------------------------


@@ -92,4 +237,12 @@ extern bool wxTestFontEncoding(const wxNativeEncodingInfo& info);
     #include "wx/unix/fontutil.h"
 #endif // X || GDK
 
     #include "wx/unix/fontutil.h"
 #endif // X || GDK
 

+// ----------------------------------------------------------------------------
+// font-related functions (MGL)
+// ----------------------------------------------------------------------------
+
+#ifdef __WXMGL__
+    #include "wx/mgl/fontutil.h"
+#endif // __WXMGL__
+

 #endif // _WX_FONTUTIL_H_
 #endif // _WX_FONTUTIL_H_