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1/////////////////////////////////////////////////////////////////////////////
2// Name: src/mgl/fontmgr.cpp
3// Purpose: font management for wxMGL
4// Author: Vaclav Slavik
5// Created: 2006-11-18
6// RCS-ID: $Id$
7// Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
8// (c) 2006 REA Elektronik GmbH
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12// For compilers that support precompilation, includes "wx.h".
13#include "wx/wxprec.h"
14
15#ifdef __BORLANDC__
16 #pragma hdrstop
17#endif
18
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19#ifndef WX_PRECOMP
20 #include "wx/log.h"
21#endif
22
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23#include "wx/private/fontmgr.h"
24#include "wx/sysopt.h"
25
26#include <mgraph.h>
27
28static int gs_antialiasingThreshold = -1;
29
30// ============================================================================
31// implementation
32// ============================================================================
33
34// ----------------------------------------------------------------------------
35// wxFontInstance
36// ----------------------------------------------------------------------------
37
38wxFontInstance::wxFontInstance(float ptSize, bool aa, font_lib_t *fontLib)
39 : wxFontInstanceBase(ptSize, aa)
40{
41 m_font = MGL_loadFontInstance(fontLib, ptSize, 0.0, 0.0, aa);
42
43 wxASSERT_MSG( m_font, _T("cannot create font instance") );
44}
45
46wxFontInstance::~wxFontInstance()
47{
48 if ( m_font )
49 MGL_unloadFontInstance(m_font);
50}
51
52// ----------------------------------------------------------------------------
53// wxFontFace
54// ----------------------------------------------------------------------------
55
56void wxFontFace::Acquire()
57{
58 wxFontFaceBase::Acquire();
59
60 if ( m_refCnt == 1 )
61 {
62 wxCHECK_RET( m_fontLib == NULL, _T("font lib already created") );
63
64 wxLogTrace("mgl_font", "opening library '%s'", m_fileName.mb_str());
65 m_fontLib = MGL_openFontLib(m_fileName.fn_str());
66 }
67}
68
69void wxFontFace::Release()
70{
71 wxFontFaceBase::Release();
72
73 if ( m_refCnt == 0 )
74 {
75 wxCHECK_RET( m_fontLib != NULL, _T("font lib not created") );
76
77 wxLogTrace("mgl_font", "closing library '%s'", m_fileName.mb_str());
78 MGL_closeFontLib(m_fontLib);
79 m_fontLib = NULL;
80 }
81}
82
83wxFontInstance *wxFontFace::GetFontInstance(float ptSize, bool aa)
84{
85 if ( gs_antialiasingThreshold == -1 )
86 {
87 gs_antialiasingThreshold = 10;
88#if wxUSE_SYSTEM_OPTIONS
89 if ( wxSystemOptions::HasOption(wxT("mgl.aa-threshold")) )
90 gs_antialiasingThreshold =
91 wxSystemOptions::GetOptionInt(wxT("mgl.aa-threshold"));
92 wxLogTrace("mgl_font", "AA threshold set to %i", gs_antialiasingThreshold);
93#endif
94 }
95
96 // Small characters don't look good when antialiased with the algorithm
97 // that FreeType uses (mere 2x2 supersampling), so lets disable AA
98 // completely for small fonts. Bitmap fonts are not antialiased either.
99 if ( ptSize <= gs_antialiasingThreshold ||
100 m_fontLib->fontLibType == MGL_BITMAPFONT_LIB )
101 {
102 aa = false;
103 }
104
105 return wxFontFaceBase::GetFontInstance(ptSize, aa);
106}
107
108wxFontInstance *wxFontFace::CreateFontInstance(float ptSize, bool aa)
109{
110 wxASSERT_MSG( m_fontLib, _T("font library not loaded!") );
111
112 return new wxFontInstance(ptSize, aa, m_fontLib);
113}
114
115// ----------------------------------------------------------------------------
116// wxFontBundle
117// ----------------------------------------------------------------------------
118
119wxFontBundle::wxFontBundle(const font_info_t *info)
120 : m_fontInfo(info)
121{
122 if ( info->regularFace[0] != '\0' )
123 m_faces[FaceType_Regular] = new wxFontFace(info->regularFace);
124
125 if ( info->italicFace[0] != '\0' )
126 m_faces[FaceType_Italic] = new wxFontFace(info->italicFace);
127
128 if ( info->boldFace[0] != '\0' )
129 m_faces[FaceType_Bold] = new wxFontFace(info->boldFace);
130
131 if ( info->boldItalicFace[0] != '\0' )
132 m_faces[FaceType_BoldItalic] = new wxFontFace(info->boldItalicFace);
133
134 wxLogTrace("mgl_font", "new family '%s' (r=%s, i=%s, b=%s, bi=%s)\n",
135 info->familyName, info->regularFace, info->italicFace,
136 info->boldFace, info->boldItalicFace);
137}
138
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139wxString wxFontBundle::GetName() const
140{
141 return wxString::FromAscii(m_fontInfo->familyName);
142}
143
144bool wxFontBundle::IsFixed() const
145{
146 return m_fontInfo->isFixed;
147}
148
149
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150// ----------------------------------------------------------------------------
151// wxFontsManager
152// ----------------------------------------------------------------------------
153
154wxString wxFontsManager::GetDefaultFacename(wxFontFamily family) const
155{
156 switch ( family )
157 {
158 case wxSCRIPT:
159 return _T("Script");
160 case wxDECORATIVE:
161 return _T("Charter");
162 case wxROMAN:
163 return _T("Times");
164 case wxTELETYPE:
165 case wxMODERN:
166 return _T("Courier");
167 case wxSWISS:
168 case wxDEFAULT:
169 default:
170 return wxT("Helvetica");
171 }
172}
173
174static ibool MGLAPI enum_callback(const font_info_t *info, void *cookie)
175{
176 wxFontsManager *db = (wxFontsManager*)cookie;
177 db->AddBundle(new wxFontBundle(info));
178 return TRUE;
179}
180
181void wxFontsManager::AddAllFonts()
182{
183 MGL_enumerateFonts(enum_callback, (void*)this);
184}