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Diffstat (limited to 'src/FbTk/XmbFontImp.cc')
-rw-r--r-- | src/FbTk/XmbFontImp.cc | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/src/FbTk/XmbFontImp.cc b/src/FbTk/XmbFontImp.cc new file mode 100644 index 0000000..6a3ffed --- /dev/null +++ b/src/FbTk/XmbFontImp.cc | |||
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1 | // XmbFontImp.cc for FbTk fluxbox toolkit | ||
2 | // Copyright (c) 2002-2003 Henrik Kinnunen (fluxgen at users.sourceforge.net) | ||
3 | // | ||
4 | // Permission is hereby granted, free of charge, to any person obtaining a | ||
5 | // copy of this software and associated documentation files (the "Software"), | ||
6 | // to deal in the Software without restriction, including without limitation | ||
7 | // the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
8 | // and/or sell copies of the Software, and to permit persons to whom the | ||
9 | // Software is furnished to do so, subject to the following conditions: | ||
10 | // | ||
11 | // The above copyright notice and this permission notice shall be included in | ||
12 | // all copies or substantial portions of the Software. | ||
13 | // | ||
14 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
15 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
16 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
17 | // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
18 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
19 | // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
20 | // DEALINGS IN THE SOFTWARE. | ||
21 | |||
22 | // $Id: XmbFontImp.cc,v 1.6 2003/04/26 18:57:51 fluxgen Exp $ | ||
23 | |||
24 | #include "XmbFontImp.hh" | ||
25 | |||
26 | #include "App.hh" | ||
27 | #include "StringUtil.hh" | ||
28 | |||
29 | #ifdef HAVE_CONFIG_H | ||
30 | #include "config.h" | ||
31 | #endif //HAVE_CONFIG_H | ||
32 | |||
33 | #ifdef HAVE_SETLOCALE | ||
34 | #include <locale.h> | ||
35 | #endif // HAVE_SETLOCALE | ||
36 | |||
37 | #ifndef _GNU_SOURCE | ||
38 | #define _GNU_SOURCE | ||
39 | #endif // _GNU_SOURCE | ||
40 | |||
41 | #include <cstdio> | ||
42 | #include <cstdarg> | ||
43 | #include <iostream> | ||
44 | #include <cstring> | ||
45 | |||
46 | using namespace std; | ||
47 | |||
48 | namespace { | ||
49 | |||
50 | #ifndef HAVE_STRCASESTR | ||
51 | //!! TODO this is moved to StringUtil | ||
52 | // Tries to find a string in another and | ||
53 | // ignoring the case of the characters | ||
54 | // Returns 0 on success else pointer to str. | ||
55 | const char *strcasestr(const char *str, const char *ptn) { | ||
56 | const char *s2, *p2; | ||
57 | for( ; *str; str++) { | ||
58 | for(s2=str, p2=ptn; ; s2++,p2++) { | ||
59 | // check if we reached the end of ptn, if so, return str | ||
60 | if (!*p2) return str; | ||
61 | // check if the chars match(ignoring case) | ||
62 | if (toupper(*s2) != toupper(*p2)) break; | ||
63 | } | ||
64 | } | ||
65 | return 0; | ||
66 | } | ||
67 | #endif //HAVE_STRCASESTR | ||
68 | |||
69 | const char *getFontSize(const char *pattern, int *size) { | ||
70 | const char *p; | ||
71 | const char *p2=0; | ||
72 | int n=0; | ||
73 | |||
74 | for (p=pattern; 1; p++) { | ||
75 | if (!*p) { | ||
76 | if (p2!=0 && n>1 && n<72) { | ||
77 | *size = n; return p2+1; | ||
78 | } else { | ||
79 | *size = 16; return 0; | ||
80 | } | ||
81 | } else if (*p=='-') { | ||
82 | if (n>1 && n<72 && p2!=0) { | ||
83 | *size = n; | ||
84 | return p2+1; | ||
85 | } | ||
86 | p2=p; n=0; | ||
87 | } else if (*p>='0' && *p<='9' && p2!=0) { | ||
88 | n *= 10; | ||
89 | n += *p-'0'; | ||
90 | } else { | ||
91 | p2=0; n=0; | ||
92 | } | ||
93 | } | ||
94 | } | ||
95 | |||
96 | const char *getFontElement(const char *pattern, char *buf, int bufsiz, ...) { | ||
97 | const char *p, *v; | ||
98 | char *p2; | ||
99 | va_list va; | ||
100 | |||
101 | va_start(va, bufsiz); | ||
102 | buf[bufsiz-1] = 0; | ||
103 | buf[bufsiz-2] = '*'; | ||
104 | while((v = va_arg(va, char *)) != 0) { | ||
105 | p = FbTk::StringUtil::strcasestr(pattern, v); | ||
106 | if (p) { | ||
107 | std::strncpy(buf, p+1, bufsiz-2); | ||
108 | p2 = strchr(buf, '-'); | ||
109 | if (p2) *p2=0; | ||
110 | va_end(va); | ||
111 | return p; | ||
112 | } | ||
113 | } | ||
114 | va_end(va); | ||
115 | std::strncpy(buf, "*", bufsiz); | ||
116 | return 0; | ||
117 | } | ||
118 | |||
119 | XFontSet createFontSet(const char *fontname) { | ||
120 | Display *display = FbTk::App::instance()->display(); | ||
121 | XFontSet fs; | ||
122 | const int FONT_ELEMENT_SIZE=50; | ||
123 | char **missing, *def = "-"; | ||
124 | int nmissing, pixel_size = 0, buf_size = 0; | ||
125 | char weight[FONT_ELEMENT_SIZE], slant[FONT_ELEMENT_SIZE]; | ||
126 | |||
127 | fs = XCreateFontSet(display, | ||
128 | fontname, &missing, &nmissing, &def); | ||
129 | if (fs && (! nmissing)) return fs; | ||
130 | |||
131 | #ifdef HAVE_SETLOCALE | ||
132 | if (! fs) { | ||
133 | if (nmissing) XFreeStringList(missing); | ||
134 | |||
135 | setlocale(LC_CTYPE, "C"); | ||
136 | fs = XCreateFontSet(display, fontname, | ||
137 | &missing, &nmissing, &def); | ||
138 | setlocale(LC_CTYPE, ""); | ||
139 | } | ||
140 | #endif // HAVE_SETLOCALE | ||
141 | |||
142 | if (fs) { | ||
143 | XFontStruct **fontstructs; | ||
144 | char **fontnames; | ||
145 | XFontsOfFontSet(fs, &fontstructs, &fontnames); | ||
146 | fontname = fontnames[0]; | ||
147 | } | ||
148 | |||
149 | getFontElement(fontname, weight, FONT_ELEMENT_SIZE, | ||
150 | "-medium-", "-bold-", "-demibold-", "-regular-", 0); | ||
151 | getFontElement(fontname, slant, FONT_ELEMENT_SIZE, | ||
152 | "-r-", "-i-", "-o-", "-ri-", "-ro-", 0); | ||
153 | getFontSize(fontname, &pixel_size); | ||
154 | |||
155 | if (! strcmp(weight, "*")) | ||
156 | std::strncpy(weight, "medium", FONT_ELEMENT_SIZE); | ||
157 | if (! strcmp(slant, "*")) | ||
158 | std::strncpy(slant, "r", FONT_ELEMENT_SIZE); | ||
159 | if (pixel_size < 3) | ||
160 | pixel_size = 3; | ||
161 | else if (pixel_size > 97) | ||
162 | pixel_size = 97; | ||
163 | |||
164 | buf_size = strlen(fontname) + (FONT_ELEMENT_SIZE * 2) + 64; | ||
165 | char *pattern2 = new char[buf_size]; | ||
166 | snprintf(pattern2, buf_size - 1, | ||
167 | "%s," | ||
168 | "-*-*-%s-%s-*-*-%d-*-*-*-*-*-*-*," | ||
169 | "-*-*-*-*-*-*-%d-*-*-*-*-*-*-*,*", | ||
170 | fontname, weight, slant, pixel_size, pixel_size); | ||
171 | fontname = pattern2; | ||
172 | |||
173 | if (nmissing) | ||
174 | XFreeStringList(missing); | ||
175 | if (fs) | ||
176 | XFreeFontSet(display, fs); | ||
177 | |||
178 | fs = XCreateFontSet(display, fontname, | ||
179 | &missing, &nmissing, &def); | ||
180 | delete [] pattern2; | ||
181 | |||
182 | return fs; | ||
183 | } | ||
184 | |||
185 | }; | ||
186 | namespace FbTk { | ||
187 | |||
188 | XmbFontImp::XmbFontImp(const char *filename, bool utf8):m_fontset(0), m_utf8mode(utf8) { | ||
189 | #ifdef DEBUG | ||
190 | #ifdef X_HAVE_UTF8_STRING | ||
191 | cerr<<"Using utf8 = "<<utf8<<endl; | ||
192 | #else // X_HAVE_UTF8_STRING | ||
193 | cerr<<"Using uft8 = false"<<endl; | ||
194 | #endif //X_HAVE_UTF8_STRING | ||
195 | #endif // DEBUG | ||
196 | if (filename != 0) | ||
197 | load(filename); | ||
198 | } | ||
199 | |||
200 | XmbFontImp::~XmbFontImp() { | ||
201 | if (m_fontset != 0) | ||
202 | XFreeFontSet(App::instance()->display(), m_fontset); | ||
203 | } | ||
204 | |||
205 | bool XmbFontImp::load(const std::string &fontname) { | ||
206 | if (fontname.size() == 0) | ||
207 | return false; | ||
208 | XFontSet set = createFontSet(fontname.c_str()); | ||
209 | if (set == 0) | ||
210 | return false; | ||
211 | if (m_fontset != 0) | ||
212 | XFreeFontSet(App::instance()->display(), m_fontset); | ||
213 | m_fontset = set; | ||
214 | m_setextents = XExtentsOfFontSet(m_fontset); | ||
215 | |||
216 | return true; | ||
217 | } | ||
218 | |||
219 | void XmbFontImp::drawText(Drawable w, int screen, GC gc, const char *text, | ||
220 | size_t len, int x, int y) const { | ||
221 | |||
222 | if (text == 0 || len == 0 || w == 0 || m_fontset == 0) | ||
223 | return; | ||
224 | #ifdef X_HAVE_UTF8_STRING | ||
225 | if (m_utf8mode) { | ||
226 | Xutf8DrawString(App::instance()->display(), w, m_fontset, | ||
227 | gc, x, y, | ||
228 | text, len); | ||
229 | } else | ||
230 | #endif //X_HAVE_UTF8_STRING | ||
231 | { | ||
232 | XmbDrawString(App::instance()->display(), w, m_fontset, | ||
233 | gc, x, y, | ||
234 | text, len); | ||
235 | } | ||
236 | } | ||
237 | |||
238 | unsigned int XmbFontImp::textWidth(const char * const text, unsigned int len) const { | ||
239 | if (m_fontset == 0) | ||
240 | return 0; | ||
241 | XRectangle ink, logical; | ||
242 | #ifdef X_HAVE_UTF8_STRING | ||
243 | if (m_utf8mode) { | ||
244 | Xutf8TextExtents(m_fontset, text, len, | ||
245 | &ink, &logical); | ||
246 | } else | ||
247 | #endif // X_HAVE_UTF8_STRING | ||
248 | { | ||
249 | XmbTextExtents(m_fontset, text, len, | ||
250 | &ink, &logical); | ||
251 | } | ||
252 | |||
253 | return logical.width; | ||
254 | } | ||
255 | |||
256 | unsigned int XmbFontImp::height() const { | ||
257 | if (m_fontset == 0) | ||
258 | return 0; | ||
259 | return m_setextents->max_ink_extent.height; | ||
260 | } | ||
261 | |||
262 | }; // end namespace FbTk | ||
263 | |||