diff options
Diffstat (limited to 'lib/libpbmfont0.c')
| -rw-r--r-- | lib/libpbmfont0.c | 87 |
1 files changed, 59 insertions, 28 deletions
diff --git a/lib/libpbmfont0.c b/lib/libpbmfont0.c index 503c7ee7..abfd18d2 100644 --- a/lib/libpbmfont0.c +++ b/lib/libpbmfont0.c @@ -27,7 +27,6 @@ #include "pbmfont.h" #include "pbmfontdata.h" - struct font * pbm_defaultfont(const char * const name) { /*---------------------------------------------------------------------------- @@ -77,11 +76,12 @@ pbm_defaultfont2(const char * const requestedFontName) { static void -selectFontType(const char * const filename, - PM_WCHAR const maxmaxglyph, - unsigned int const isWide, - struct font ** const fontPP, - struct font2 ** const font2PP) { +selectFontType(const char * const filename, + PM_WCHAR const maxmaxglyph, + unsigned int const isWide, + struct font ** const fontPP, + struct font2 ** const font2PP, + const struct pm_selector * const selectorP) { FILE * fileP; struct font * fontP = NULL; /* initial value */ @@ -106,7 +106,7 @@ selectFontType(const char * const filename, } else if (!strncmp(line, "STARTFONT", 9)) { if (isWide == TRUE) - font2P = pbm_loadbdffont2(filename, maxmaxglyph); + font2P = pbm_loadbdffont2select(filename, maxmaxglyph, selectorP); else fontP = pbm_loadbdffont(filename); if (fontP == NULL && font2P == NULL) @@ -128,25 +128,49 @@ selectFontType(const char * const filename, struct font * -pbm_loadfont(const char * const filename) { - +pbm_loadfont(const char * const filename) { +/*---------------------------------------------------------------------------- + Load font file named 'filename'. + Font file may be either a PBM sheet or BDF. + Supports 8 bit codepoints. +-----------------------------------------------------------------------------*/ struct font * fontP; struct font2 * font2P; - selectFontType(filename, PM_FONT_MAXGLYPH, FALSE, &fontP, &font2P); + selectFontType(filename, PM_FONT_MAXGLYPH, FALSE, &fontP, &font2P, NULL); return fontP; } struct font2 * -pbm_loadfont2(const char * const filename, - PM_WCHAR const maxmaxglyph) { +pbm_loadfont2(const char * const filename, + PM_WCHAR const maxmaxglyph) { +/*---------------------------------------------------------------------------- + Load font file named 'filename'. + Font file may be either a PBM sheet or BDF. + Supports codepoints above 256. +-----------------------------------------------------------------------------*/ + struct font * fontP; + struct font2 * font2P; + + selectFontType(filename, maxmaxglyph, TRUE, &fontP, &font2P, NULL); + return font2P; +} + +struct font2 * +pbm_loadfont2select(const char * const filename, + PM_WCHAR const maxmaxglyph, + const struct pm_selector * const selectorP) { +/*---------------------------------------------------------------------------- + Same as pbm_loadfont2(), but load only glyphs indicated by *selectorP +-----------------------------------------------------------------------------*/ struct font * fontP; struct font2 * font2P; - selectFontType(filename, maxmaxglyph, TRUE, &fontP, &font2P); + selectFontType(filename, maxmaxglyph, TRUE, &fontP, &font2P, selectorP); + return font2P; } @@ -173,7 +197,7 @@ pbm_createbdffont2_base(struct font2 ** const font2PP, /* Caller should overwrite following fields as necessary */ font2P->oldfont = NULL; font2P->fcols = font2P->frows = 0; - font2P->selector = NULL; + font2P->selectorP = NULL; font2P->default_char = 0; font2P->default_char_defined = FALSE; font2P->total_chars = font2P->chars = 0; @@ -187,23 +211,32 @@ pbm_createbdffont2_base(struct font2 ** const font2PP, static void -destroyGlyphData(struct glyph ** const glyph, - PM_WCHAR const maxglyph) { +destroyGlyphData(struct glyph ** const glyph, + PM_WCHAR const maxglyph, + const struct pm_selector * const selectorP) { /*---------------------------------------------------------------------------- Free glyph objects and bitmap objects. This does not work when an object is "shared" through multiple pointers referencing an identical address and thus pointing to a common glyph or bitmap object. + + If 'selectorP' is NULL, free all glyph and bitmap objects in the range + 0 ... maxglyph. If not, free only the objects which the selector + indicates as present. -----------------------------------------------------------------------------*/ + PM_WCHAR const min = (selectorP != NULL) ? selectorP->min : 0; + PM_WCHAR const max = + (selectorP != NULL) ? MIN(selectorP->max, maxglyph) : maxglyph; + PM_WCHAR i; - for(i = 0; i <= maxglyph; ++i) { - if (glyph[i]!=NULL) { + for (i = min; i <= max; ++i) { + if (pm_selector_is_marked(selectorP, i) && glyph[i]) { free((void *) (glyph[i]->bmap)); free(glyph[i]); - } + } } } @@ -214,17 +247,16 @@ pbm_destroybdffont2_base(struct font2 * const font2P) { Free font2 structure, but not the glyph data ---------------------------------------------------------------------------- */ - free(font2P->selector); - pm_strfree(font2P->name); + pm_strfree(font2P->charset_string); + free(font2P->glyph); - if (font2P->oldfont !=NULL) + if (font2P->oldfont) pbm_freearray(font2P->oldfont, font2P->frows); - free((void *)font2P); - + free(font2P); } @@ -239,7 +271,7 @@ pbm_destroybdffont2(struct font2 * const font2P) { ---------------------------------------------------------------------------- */ if (font2P->load_fn != FIXED_DATA) { - destroyGlyphData(font2P->glyph, font2P->maxglyph); + destroyGlyphData(font2P->glyph, font2P->maxglyph, font2P->selectorP); pbm_destroybdffont2_base(font2P); } } @@ -254,7 +286,7 @@ pbm_destroybdffont(struct font * const fontP) { For freeing a structure created by pbm_loadbdffont() or pbm_loadpbmfont(). ---------------------------------------------------------------------------- */ - destroyGlyphData(fontP->glyph, PM_FONT_MAXGLYPH); + destroyGlyphData(fontP->glyph, PM_FONT_MAXGLYPH, NULL); if (fontP->oldfont !=NULL) pbm_freearray(fontP->oldfont, fontP->frows); @@ -326,8 +358,7 @@ pbm_expandbdffont(const struct font * const fontP) { font2P->bit_format = PBM_FORMAT; font2P->total_chars = font2P->chars = nCharacters; font2P->load_fn = CONVERTED_TYPE1_FONT; - /* Caller should be overwrite the above to a more descriptive - value */ + /* Caller should overwrite the above to a more descriptive value */ return font2P; } |