409d5a5860
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13642 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
198 lines
6.7 KiB
C++
198 lines
6.7 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/fontutil.h
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// Purpose: font-related helper functions
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 05.11.99
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// RCS-ID: $Id$
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// Copyright: (c) wxWindows team
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// Licence: wxWindows license
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/////////////////////////////////////////////////////////////////////////////
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// General note: this header is private to wxWindows and is not supposed to be
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// included by user code. The functions declared here are implemented in
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// msw/fontutil.cpp for Windows, unix/fontutil.cpp for GTK/Motif &c.
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#ifndef _WX_FONTUTIL_H_
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#define _WX_FONTUTIL_H_
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#ifdef __GNUG__
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#pragma interface "fontutil.h"
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#endif
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/font.h" // for wxFont and wxFontEncoding
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#if defined(__WXMSW__)
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#include <windows.h>
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#include "wx/msw/winundef.h"
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#endif
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#if defined(_WX_X_FONTLIKE)
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// the symbolic names for the XLFD fields (with examples for their value)
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//
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// NB: we suppose that the font always starts with the empty token (font name
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// registry field) as we never use nor generate it anyhow
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enum wxXLFDField
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{
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wxXLFD_FOUNDRY, // adobe
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wxXLFD_FAMILY, // courier, times, ...
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wxXLFD_WEIGHT, // black, bold, demibold, medium, regular, light
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wxXLFD_SLANT, // r/i/o (roman/italique/oblique)
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wxXLFD_SETWIDTH, // condensed, expanded, ...
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wxXLFD_ADDSTYLE, // whatever - usually nothing
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wxXLFD_PIXELSIZE, // size in pixels
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wxXLFD_POINTSIZE, // size in points
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wxXLFD_RESX, // 72, 75, 100, ...
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wxXLFD_RESY,
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wxXLFD_SPACING, // m/p/c (monospaced/proportional/character cell)
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wxXLFD_AVGWIDTH, // average width in 1/10 pixels
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wxXLFD_REGISTRY, // iso8859, rawin, koi8, ...
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wxXLFD_ENCODING, // 1, r, r, ...
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wxXLFD_MAX
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};
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#endif // _WX_X_FONTLIKE
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// ----------------------------------------------------------------------------
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// types
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// ----------------------------------------------------------------------------
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// wxNativeFontInfo is platform-specific font representation: this struct
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// should be considered as opaque font description only used by the native
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// functions, the user code can only get the objects of this type from
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// somewhere and pass it somewhere else (possibly save them somewhere using
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// ToString() and restore them using FromString())
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//
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// NB: it is a POD currently for max efficiency but if it continues to grow
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// further it might make sense to make it a real class with virtual methods
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struct WXDLLEXPORT wxNativeFontInfo
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{
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#if defined(_WX_X_FONTLIKE)
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// the members can't be accessed directly as we only parse the
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// xFontName on demand
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private:
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// the components of the XLFD
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wxString fontElements[wxXLFD_MAX];
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// the full XLFD
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wxString xFontName;
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// true until SetXFontName() is called
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bool m_isDefault;
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// return true if we have already initialized fontElements
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inline bool HasElements() const;
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public:
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// init the elements from an XLFD, return TRUE if ok
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bool FromXFontName(const wxString& xFontName);
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// return false if we were never initialized with a valid XLFD
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bool IsDefault() const { return m_isDefault; }
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// return the XLFD (using the fontElements if necessary)
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wxString GetXFontName() const;
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// get the given XFLD component
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wxString GetXFontComponent(wxXLFDField field) const;
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// change the font component
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void SetXFontComponent(wxXLFDField field, const wxString& value);
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// set the XFLD
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void SetXFontName(const wxString& xFontName);
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#elif defined(__WXMSW__)
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LOGFONT lf;
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#elif defined(__WXPM__)
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// OS/2 native structures that define a font
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FATTRS fa;
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FONTMETRICS fm;
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FACENAMEDESC fn;
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#else // other platforms
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//
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// This is a generic implementation that should work on all ports
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// without specific support by the port.
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//
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#define wxNO_NATIVE_FONTINFO
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int pointSize;
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wxFontFamily family;
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wxFontStyle style;
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wxFontWeight weight;
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bool underlined;
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wxString faceName;
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wxFontEncoding encoding;
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#endif // platforms
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// default ctor (default copy ctor is ok)
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wxNativeFontInfo() { Init(); }
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// reset to the default state
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void Init();
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// accessors and modifiers for the font elements
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int GetPointSize() const;
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wxFontStyle GetStyle() const;
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wxFontWeight GetWeight() const;
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bool GetUnderlined() const;
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wxString GetFaceName() const;
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wxFontFamily GetFamily() const;
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wxFontEncoding GetEncoding() const;
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void SetPointSize(int pointsize);
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void SetStyle(wxFontStyle style);
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void SetWeight(wxFontWeight weight);
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void SetUnderlined(bool underlined);
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void SetFaceName(wxString facename);
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void SetFamily(wxFontFamily family);
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void SetEncoding(wxFontEncoding encoding);
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// it is important to be able to serialize wxNativeFontInfo objects to be
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// able to store them (in config file, for example)
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bool FromString(const wxString& s);
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wxString ToString() const;
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// we also want to present the native font descriptions to the user in some
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// human-readable form (it is not platform independent neither, but can
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// hopefully be understood by the user)
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bool FromUserString(const wxString& s);
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wxString ToUserString() const;
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};
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// ----------------------------------------------------------------------------
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// font-related functions (common)
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// ----------------------------------------------------------------------------
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// translate a wxFontEncoding into native encoding parameter (defined above),
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// returning TRUE if an (exact) macth could be found, FALSE otherwise (without
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// attempting any substitutions)
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extern bool wxGetNativeFontEncoding(wxFontEncoding encoding,
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wxNativeEncodingInfo *info);
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// test for the existence of the font described by this facename/encoding,
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// return TRUE if such font(s) exist, FALSE otherwise
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extern bool wxTestFontEncoding(const wxNativeEncodingInfo& info);
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// ----------------------------------------------------------------------------
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// font-related functions (X and GTK)
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// ----------------------------------------------------------------------------
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#ifdef _WX_X_FONTLIKE
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#include "wx/unix/fontutil.h"
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#endif // X || GDK
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// ----------------------------------------------------------------------------
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// font-related functions (MGL)
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// ----------------------------------------------------------------------------
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#ifdef __WXMGL__
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#include "wx/mgl/fontutil.h"
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#endif // __WXMGL__
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#endif // _WX_FONTUTIL_H_
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