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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/unix/fontenum.cpp | |
3 | // Purpose: wxFontEnumerator class for X11/GDK | |
4 | // Author: Vadim Zeitlin | |
5 | // Modified by: | |
6 | // Created: 01.10.99 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Vadim Zeitlin | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================ | |
13 | // declarations | |
14 | // ============================================================================ | |
15 | ||
16 | // ---------------------------------------------------------------------------- | |
17 | // headers | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
20 | #ifdef __GNUG__ | |
21 | #pragma implementation "fontenum.h" | |
22 | #endif | |
23 | ||
24 | #include "wx/defs.h" | |
25 | #include "wx/dynarray.h" | |
26 | #include "wx/string.h" | |
27 | #include "wx/utils.h" | |
28 | ||
29 | #include "wx/fontmap.h" | |
30 | #include "wx/fontenum.h" | |
31 | #include "wx/fontutil.h" | |
32 | ||
33 | #include <X11/Xlib.h> | |
34 | ||
35 | // ---------------------------------------------------------------------------- | |
36 | // private functions | |
37 | // ---------------------------------------------------------------------------- | |
38 | ||
39 | // create the list of all fonts with the given spacing and encoding | |
40 | static char **CreateFontList(wxChar spacing, wxFontEncoding encoding, | |
41 | int *nFonts); | |
42 | ||
43 | // extract all font families from the given font list and call our | |
44 | // OnFacename() for each of them | |
45 | static bool ProcessFamiliesFromFontList(wxFontEnumerator *This, | |
46 | char **fonts, | |
47 | int nFonts); | |
48 | ||
49 | ||
50 | // ---------------------------------------------------------------------------- | |
51 | // private types | |
52 | // ---------------------------------------------------------------------------- | |
53 | ||
54 | // ============================================================================ | |
55 | // implementation | |
56 | // ============================================================================ | |
57 | ||
58 | // ---------------------------------------------------------------------------- | |
59 | // helpers | |
60 | // ---------------------------------------------------------------------------- | |
61 | ||
62 | static char **CreateFontList(wxChar spacing, | |
63 | wxFontEncoding encoding, | |
64 | int *nFonts) | |
65 | { | |
66 | wxNativeEncodingInfo info; | |
67 | wxGetNativeFontEncoding(encoding, &info); | |
68 | ||
69 | if ( !wxTestFontEncoding(info) ) | |
70 | { | |
71 | // ask font mapper for a replacement | |
72 | (void)wxTheFontMapper->GetAltForEncoding(encoding, &info); | |
73 | } | |
74 | ||
75 | wxString pattern; | |
76 | pattern.Printf(wxT("-*-*-*-*-*-*-*-*-*-*-%c-*-%s-%s"), | |
77 | spacing, | |
78 | info.xregistry.c_str(), | |
79 | info.xencoding.c_str()); | |
80 | ||
81 | // get the list of all fonts | |
82 | return XListFonts((Display *)wxGetDisplay(), pattern.mb_str(), 32767, nFonts); | |
83 | } | |
84 | ||
85 | static bool ProcessFamiliesFromFontList(wxFontEnumerator *This, | |
86 | char **fonts, | |
87 | int nFonts) | |
88 | { | |
89 | // extract the list of (unique) font families | |
90 | wxSortedArrayString families; | |
91 | for ( int n = 0; n < nFonts; n++ ) | |
92 | { | |
93 | char *font = fonts[n]; | |
94 | if ( !wxString(font).Matches(wxT("-*-*-*-*-*-*-*-*-*-*-*-*-*-*")) ) | |
95 | { | |
96 | // it's not a full font name (probably an alias) | |
97 | continue; | |
98 | } | |
99 | ||
100 | char *dash = strchr(font + 1, '-'); | |
101 | char *family = dash + 1; | |
102 | dash = strchr(family, '-'); | |
103 | *dash = '\0'; // !NULL because Matches() above succeeded | |
104 | wxString fam(family); | |
105 | ||
106 | if ( families.Index(fam) == wxNOT_FOUND ) | |
107 | { | |
108 | if ( !This->OnFacename(fam) ) | |
109 | { | |
110 | // stop enumerating | |
111 | return FALSE; | |
112 | } | |
113 | ||
114 | families.Add(fam); | |
115 | } | |
116 | //else: already seen | |
117 | } | |
118 | ||
119 | return TRUE; | |
120 | } | |
121 | ||
122 | // ---------------------------------------------------------------------------- | |
123 | // wxFontEnumerator | |
124 | // ---------------------------------------------------------------------------- | |
125 | ||
126 | bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding, | |
127 | bool fixedWidthOnly) | |
128 | { | |
129 | int nFonts; | |
130 | char **fonts; | |
131 | ||
132 | if ( fixedWidthOnly ) | |
133 | { | |
134 | bool cont = TRUE; | |
135 | fonts = CreateFontList(wxT('m'), encoding, &nFonts); | |
136 | if ( fonts ) | |
137 | { | |
138 | cont = ProcessFamiliesFromFontList(this, fonts, nFonts); | |
139 | ||
140 | XFreeFontNames(fonts); | |
141 | } | |
142 | ||
143 | if ( !cont ) | |
144 | { | |
145 | return TRUE; | |
146 | } | |
147 | ||
148 | fonts = CreateFontList(wxT('c'), encoding, &nFonts); | |
149 | if ( !fonts ) | |
150 | { | |
151 | return TRUE; | |
152 | } | |
153 | } | |
154 | else | |
155 | { | |
156 | fonts = CreateFontList(wxT('*'), encoding, &nFonts); | |
157 | ||
158 | if ( !fonts ) | |
159 | { | |
160 | // it's ok if there are no fonts in given encoding - but it's not | |
161 | // ok if there are no fonts at all | |
162 | wxASSERT_MSG(encoding != wxFONTENCODING_SYSTEM, | |
163 | wxT("No fonts at all on this system?")); | |
164 | ||
165 | return FALSE; | |
166 | } | |
167 | } | |
168 | ||
169 | (void)ProcessFamiliesFromFontList(this, fonts, nFonts); | |
170 | ||
171 | XFreeFontNames(fonts); | |
172 | ||
173 | return TRUE; | |
174 | } | |
175 | ||
176 | bool wxFontEnumerator::EnumerateEncodings(const wxString& family) | |
177 | { | |
178 | wxString pattern; | |
179 | pattern.Printf(wxT("-*-%s-*-*-*-*-*-*-*-*-*-*-*-*"), | |
180 | family.IsEmpty() ? wxT("*") : family.c_str()); | |
181 | ||
182 | // get the list of all fonts | |
183 | int nFonts; | |
184 | char **fonts = XListFonts((Display *)wxGetDisplay(), pattern.mb_str(), | |
185 | 32767, &nFonts); | |
186 | ||
187 | if ( !fonts ) | |
188 | { | |
189 | // unknown family? | |
190 | return FALSE; | |
191 | } | |
192 | ||
193 | // extract the list of (unique) encodings | |
194 | wxSortedArrayString encodings; | |
195 | for ( int n = 0; n < nFonts; n++ ) | |
196 | { | |
197 | char *font = fonts[n]; | |
198 | if ( !wxString(font).Matches(wxT("-*-*-*-*-*-*-*-*-*-*-*-*-*-*")) ) | |
199 | { | |
200 | // it's not a full font name (probably an alias) | |
201 | continue; | |
202 | } | |
203 | ||
204 | // extract the family | |
205 | char *dash = strchr(font + 1, '-'); | |
206 | char *familyFont = dash + 1; | |
207 | dash = strchr(familyFont, '-'); | |
208 | *dash = '\0'; // !NULL because Matches() above succeeded | |
209 | ||
210 | if ( !family.IsEmpty() && (family != familyFont) ) | |
211 | { | |
212 | // family doesn't match | |
213 | continue; | |
214 | } | |
215 | ||
216 | // now extract the registry/encoding | |
217 | char *p = dash + 1; // just after the dash after family | |
218 | dash = strrchr(p, '-'); | |
219 | ||
220 | wxString registry(dash + 1); | |
221 | *dash = '\0'; | |
222 | ||
223 | dash = strrchr(p, '-'); | |
224 | wxString encoding(dash + 1); | |
225 | ||
226 | encoding << wxT('-') << registry; | |
227 | if ( encodings.Index(encoding) == wxNOT_FOUND ) | |
228 | { | |
229 | if ( !OnFontEncoding(familyFont, encoding) ) | |
230 | { | |
231 | break; | |
232 | } | |
233 | ||
234 | encodings.Add(encoding); | |
235 | } | |
236 | //else: already had this one | |
237 | } | |
238 | ||
239 | XFreeFontNames(fonts); | |
240 | ||
241 | return TRUE; | |
242 | } |