4 * map dvi fonts to X fonts
8 #include <X11/IntrinsicP.h>
9 #include <X11/StringDefs.h>
14 #include "XFontName.h"
16 static void DisposeFontSizes(DviWidget, DviFontSizeList *);
17 void DestroyFontMap(DviFontMap *);
20 savestr (const char *s)
26 n = XtMalloc (strlen (s) + 1);
33 LookupFontByPosition (DviWidget dw, int position)
37 for (f = dw->dvi.fonts; f; f = f->next)
38 if (f->dvi_number == position)
44 MaxFontPosition (DviWidget dw)
49 for (f = dw->dvi.fonts; f; f = f->next)
50 if (f->dvi_number > n)
55 static DviFontSizeList *
56 LookupFontSizeBySize (DviWidget dw, DviFontList *f, int size)
58 DviFontSizeList *fs, *best = 0, *smallest = 0;
61 unsigned int fontNameAttributes;
62 char fontNameString[2048];
66 decipointsize = (10*size)/dw->dvi.sizescale;
67 for (best = f->sizes; best; best = best->next)
68 if (best->size == decipointsize)
70 best = (DviFontSizeList *) XtMalloc(sizeof *best);
71 best->next = f->sizes;
72 best->size = decipointsize;
74 XParseFontName (f->x_name, &fontName, &fontNameAttributes);
75 fontNameAttributes &= ~(FontNamePixelSize|FontNameAverageWidth);
76 fontNameAttributes |= FontNameResolutionX;
77 fontNameAttributes |= FontNameResolutionY;
78 fontNameAttributes |= FontNamePointSize;
79 fontName.ResolutionX = dw->dvi.display_resolution;
80 fontName.ResolutionY = dw->dvi.display_resolution;
81 fontName.PointSize = decipointsize;
82 XFormatFontName (&fontName, fontNameAttributes, fontNameString);
83 best->x_name = savestr (fontNameString);
84 best->doesnt_exist = 0;
88 for (fs = f->sizes; fs; fs=fs->next) {
89 if (dw->dvi.sizescale*fs->size <= 10*size
90 && fs->size >= bestsize) {
94 if (smallest == 0 || fs->size < smallest->size)
97 return best ? best : smallest;
101 SkipFontNameElement (char *n)
109 # define SizePosition 8
110 # define EncodingPosition 13
113 ConvertFontNameToSize (char *n)
117 for (i = 0; i < SizePosition; i++) {
118 n = SkipFontNameElement (n);
127 ConvertFontNameToEncoding (char *n)
130 for (i = 0; i < EncodingPosition; i++) {
131 n = SkipFontNameElement (n);
139 InstallFontSizes (DviWidget dw, const char *x_name, Boolean *scalablep)
141 char fontNameString[2048];
145 DviFontSizeList *sizes, *new_size;
147 unsigned int fontNameAttributes;
150 if (!XParseFontName ((XFontNameString)x_name, &fontName,
151 &fontNameAttributes))
153 fontNameAttributes &= ~(FontNamePixelSize|FontNamePointSize
154 |FontNameAverageWidth);
155 fontNameAttributes |= FontNameResolutionX;
156 fontNameAttributes |= FontNameResolutionY;
157 fontName.ResolutionX = dw->dvi.display_resolution;
158 fontName.ResolutionY = dw->dvi.display_resolution;
159 XFormatFontName (&fontName, fontNameAttributes, fontNameString);
160 fonts = XListFonts (XtDisplay (dw), fontNameString, 10000000, &count);
162 for (i = 0; i < count; i++) {
163 size = ConvertFontNameToSize (fonts[i]);
165 DisposeFontSizes (dw, sizes);
171 new_size = (DviFontSizeList *) XtMalloc (sizeof *new_size);
172 new_size->next = sizes;
173 new_size->size = size;
174 new_size->x_name = savestr (fonts[i]);
175 new_size->doesnt_exist = 0;
180 XFreeFontNames (fonts);
185 DisposeFontSizes (DviWidget dw, DviFontSizeList *fs)
187 DviFontSizeList *next;
189 for (; fs; fs=next) {
193 if (fs->font && fs->font != dw->dvi.default_font) {
194 XUnloadFont (XtDisplay (dw), fs->font->fid);
195 XFree ((char *)fs->font);
197 XtFree ((char *) fs);
202 InstallFont (DviWidget dw, int position,
203 const char *dvi_name, const char *x_name)
208 if ((f = LookupFontByPosition (dw, position)) != NULL) {
210 * ignore gratuitous font loading
212 if (!strcmp (f->dvi_name, dvi_name) &&
213 !strcmp (f->x_name, x_name))
216 DisposeFontSizes (dw, f->sizes);
218 XtFree (f->dvi_name);
223 f = (DviFontList *) XtMalloc (sizeof (*f));
224 f->next = dw->dvi.fonts;
227 f->initialized = FALSE;
228 f->dvi_name = savestr (dvi_name);
229 f->device_font = device_find_font (dw->dvi.device, dvi_name);
230 f->x_name = savestr (x_name);
231 f->dvi_number = position;
235 encoding = ConvertFontNameToEncoding (f->x_name);
236 f->char_map = DviFindMap (encoding);
240 * force requery of fonts
243 dw->dvi.font_number = -1;
244 dw->dvi.cache.font = 0;
245 dw->dvi.cache.font_number = -1;
246 dw->dvi.device_font = 0;
247 dw->dvi.device_font_number = -1;
252 ForgetFonts (DviWidget dw)
254 DviFontList *f = dw->dvi.fonts;
257 DviFontList *tem = f;
260 DisposeFontSizes (dw, f->sizes);
262 XtFree (f->dvi_name);
266 XtFree ((char *) tem);
270 * force requery of fonts
273 dw->dvi.font_number = -1;
274 dw->dvi.cache.font = 0;
275 dw->dvi.cache.font_number = -1;
276 dw->dvi.device_font = 0;
277 dw->dvi.device_font_number = -1;
283 MapDviNameToXName (DviWidget dw, const char *dvi_name)
287 for (fm = dw->dvi.font_map; fm; fm=fm->next)
288 if (!strcmp (fm->dvi_name, dvi_name))
295 MapXNameToDviName (DviWidget dw, const char *x_name)
299 for (fm = dw->dvi.font_map; fm; fm=fm->next)
300 if (!strcmp (fm->x_name, x_name))
307 ParseFontMap (DviWidget dw)
312 DviFontMap *fm, *new_map;
314 if (dw->dvi.font_map)
315 DestroyFontMap (dw->dvi.font_map);
317 m = dw->dvi.font_map_string;
320 while (*m && !isspace (*m))
322 strncpy (dvi_name, s, m-s);
323 dvi_name[m-s] = '\0';
327 while (*m && *m != '\n')
329 strncpy (x_name, s, m-s);
331 new_map = (DviFontMap *) XtMalloc (sizeof *new_map);
332 new_map->x_name = savestr (x_name);
333 new_map->dvi_name = savestr (dvi_name);
338 dw->dvi.font_map = fm;
342 DestroyFontMap (DviFontMap *font_map)
346 for (; font_map; font_map = next) {
347 next = font_map->next;
348 if (font_map->x_name)
349 XtFree (font_map->x_name);
350 if (font_map->dvi_name)
351 XtFree (font_map->dvi_name);
352 XtFree ((char *) font_map);
359 SetFontPosition (DviWidget dw, int position,
360 const char *dvi_name, const char *extra)
364 x_name = MapDviNameToXName (dw, dvi_name);
366 (void) InstallFont (dw, position, dvi_name, x_name);
368 extra = extra; /* unused; suppress compiler warning */
372 QueryFont (DviWidget dw, int position, int size)
377 f = LookupFontByPosition (dw, position);
379 return dw->dvi.default_font;
380 if (!f->initialized) {
381 f->sizes = InstallFontSizes (dw, f->x_name, &f->scalable);
382 f->initialized = TRUE;
384 fs = LookupFontSizeBySize (dw, f, size);
386 return dw->dvi.default_font;
389 fs->font = XLoadQueryFont (XtDisplay (dw), fs->x_name);
391 fs->font = dw->dvi.default_font;
397 QueryDeviceFont (DviWidget dw, int position)
401 f = LookupFontByPosition (dw, position);
404 return f->device_font;
408 QueryFontMap (DviWidget dw, int position)
412 f = LookupFontByPosition (dw, position);
420 LoadFont (DviWidget dw, int position, int size)
424 font = QueryFont (dw, position, size);
425 dw->dvi.font_number = position;
426 dw->dvi.font_size = size;
428 XSetFont (XtDisplay (dw), dw->dvi.normal_GC, font->fid);
436 c-continued-statement-offset: 8
440 c-tab-always-indent: nil