/* $XTermId: fontutils.c,v 1.387 2013/05/15 00:31:56 tom Exp $ */ /* * Copyright 1998-2011,2012 by Thomas E. Dickey * * All Rights Reserved * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name(s) of the above copyright * holders shall not be used in advertising or otherwise to promote the * sale, use or other dealings in this Software without prior written * authorization. */ /* * A portion of this module (for FontNameProperties) was adapted from EMU 1.3; * it constructs font names with specific properties changed, e.g., for bold * and double-size characters. */ #define RES_OFFSET(field) XtOffsetOf(SubResourceRec, field) #include #include #include #include #include #include #include #include #include #include #define SetFontWidth(screen,dst,src) (dst)->f_width = (src) #define SetFontHeight(screen,dst,src) (dst)->f_height = dimRound((screen)->scale_height * (float) (src)) /* from X11/Xlibint.h - not all vendors install this file */ #define CI_NONEXISTCHAR(cs) (((cs)->width == 0) && \ (((cs)->rbearing|(cs)->lbearing| \ (cs)->ascent|(cs)->descent) == 0)) #define CI_GET_CHAR_INFO_1D(fs,col,def,cs) \ { \ cs = def; \ if (col >= fs->min_char_or_byte2 && col <= fs->max_char_or_byte2) { \ if (fs->per_char == NULL) { \ cs = &fs->min_bounds; \ } else { \ cs = &fs->per_char[(col - fs->min_char_or_byte2)]; \ if (CI_NONEXISTCHAR(cs)) cs = def; \ } \ } \ } #define CI_GET_CHAR_INFO_2D(fs,row,col,def,cs) \ { \ cs = def; \ if (row >= fs->min_byte1 && row <= fs->max_byte1 && \ col >= fs->min_char_or_byte2 && col <= fs->max_char_or_byte2) { \ if (fs->per_char == NULL) { \ cs = &fs->min_bounds; \ } else { \ cs = &fs->per_char[((row - fs->min_byte1) * \ (fs->max_char_or_byte2 - \ fs->min_char_or_byte2 + 1)) + \ (col - fs->min_char_or_byte2)]; \ if (CI_NONEXISTCHAR(cs)) cs = def; \ } \ } \ } /* * A structure to hold the relevant properties from a font * we need to make a well formed font name for it. */ typedef struct { /* registry, foundry, family */ char *beginning; /* weight */ char *weight; /* slant */ char *slant; /* wideness */ char *wideness; /* add style */ char *add_style; int pixel_size; char *point_size; int res_x; int res_y; char *spacing; int average_width; /* charset registry, charset encoding */ char *end; } FontNameProperties; #if OPT_RENDERFONT static void fillInFaceSize(XtermWidget, int); #endif #if OPT_SHIFT_FONTS static int lookupOneFontSize(XtermWidget, int); #endif #if OPT_WIDE_CHARS static unsigned countGlyphs(XFontStruct * fp) { unsigned count = 0; if (fp != 0) { if (fp->min_byte1 == 0 && fp->max_byte1 == 0) { count = fp->max_char_or_byte2 - fp->min_char_or_byte2; } else if (fp->min_char_or_byte2 < 256 && fp->max_char_or_byte2 < 256) { unsigned first = (fp->min_byte1 << 8) + fp->min_char_or_byte2; unsigned last = (fp->max_byte1 << 8) + fp->max_char_or_byte2; count = last + 1 - first; } } return count; } /* * Verify that the wide-bold font is at least a bold font with roughly as many * glyphs as the wide font. The counts should be the same, but settle for * filtering out the worst of the font mismatches. */ static Bool compatibleWideCounts(XFontStruct * wfs, XFontStruct * wbfs) { unsigned count_w = countGlyphs(wfs); unsigned count_wb = countGlyphs(wbfs); if (count_w <= 256 || count_wb <= 256 || ((count_w / 4) * 3) > count_wb) { TRACE(("...font server lied (count wide %u vs wide-bold %u)\n", count_w, count_wb)); return False; } return True; } #endif /* OPT_WIDE_CHARS */ #if OPT_BOX_CHARS static void setupPackedFonts(XtermWidget xw) { TScreen *screen = TScreenOf(xw); Bool value = False; #if OPT_RENDERFONT #define MIXED(name) screen->name[fontnum].map.mixed if (xw->work.render_font == True) { int fontnum = screen->menu_font_number; screen->allow_packing = (Boolean) (MIXED(renderFontNorm) || MIXED(renderFontBold) || MIXED(renderFontItal) #if OPT_RENDERWIDE || MIXED(renderWideNorm) || MIXED(renderWideBold) || MIXED(renderWideItal) #endif ); #undef MIXED } #endif /* OPT_RENDERFONT */ value = screen->allow_packing; SetItemSensitivity(fontMenuEntries[fontMenu_font_packedfont].widget, value); } #endif /* * Returns the fields from start to stop in a dash- separated string. This * function will modify the source, putting '\0's in the appropiate place and * moving the beginning forward to after the '\0' * * This will NOT work for the last field (but we won't need it). */ static char * n_fields(char **source, int start, int stop) { int i; char *str, *str1; /* * find the start-1th dash */ for (i = start - 1, str = *source; i; i--, str++) if ((str = strchr(str, '-')) == 0) return 0; /* * find the stopth dash */ for (i = stop - start + 1, str1 = str; i; i--, str1++) if ((str1 = strchr(str1, '-')) == 0) return 0; /* * put a \0 at the end of the fields */ *(str1 - 1) = '\0'; /* * move source forward */ *source = str1; return str; } static Boolean check_fontname(const char *name) { Boolean result = True; if (IsEmpty(name)) { TRACE(("fontname missing\n")); result = False; } return result; } /* * Gets the font properties from a given font structure. We use the FONT name * to find them out, since that seems easier. * * Returns a pointer to a static FontNameProperties structure * or NULL on error. */ static FontNameProperties * get_font_name_props(Display * dpy, XFontStruct * fs, char **result) { static FontNameProperties props; static char *last_name; XFontProp *fp; int i; Atom fontatom = XInternAtom(dpy, "FONT", False); char *name = 0; char *str; /* * first get the full font name */ if (fontatom != 0) { for (i = 0, fp = fs->properties; i < fs->n_properties; i++, fp++) { if (fp->name == fontatom) { name = XGetAtomName(dpy, fp->card32); break; } } } if (name == 0) return 0; /* * XGetAtomName allocates memory - don't leak */ if (last_name != 0) XFree(last_name); last_name = name; if (result != 0) { if (!check_fontname(name)) return 0; if (*result != 0) free(*result); *result = x_strdup(name); } /* * Now split it up into parts and put them in * their places. Since we are using parts of * the original string, we must not free the Atom Name */ /* registry, foundry, family */ if ((props.beginning = n_fields(&name, 1, 3)) == 0) return 0; /* weight is the next */ if ((props.weight = n_fields(&name, 1, 1)) == 0) return 0; /* slant */ if ((props.slant = n_fields(&name, 1, 1)) == 0) return 0; /* width */ if ((props.wideness = n_fields(&name, 1, 1)) == 0) return 0; /* add style */ if ((props.add_style = n_fields(&name, 1, 1)) == 0) return 0; /* pixel size */ if ((str = n_fields(&name, 1, 1)) == 0) return 0; if ((props.pixel_size = atoi(str)) == 0) return 0; /* point size */ if ((props.point_size = n_fields(&name, 1, 1)) == 0) return 0; /* res_x */ if ((str = n_fields(&name, 1, 1)) == 0) return 0; if ((props.res_x = atoi(str)) == 0) return 0; /* res_y */ if ((str = n_fields(&name, 1, 1)) == 0) return 0; if ((props.res_y = atoi(str)) == 0) return 0; /* spacing */ if ((props.spacing = n_fields(&name, 1, 1)) == 0) return 0; /* average width */ if ((str = n_fields(&name, 1, 1)) == 0) return 0; if ((props.average_width = atoi(str)) == 0) return 0; /* the rest: charset registry and charset encoding */ props.end = name; return &props; } #define ALLOCHUNK(n) ((n | 127) + 1) static void alloca_fontname(char **result, size_t next) { size_t last = (*result != 0) ? strlen(*result) : 0; size_t have = (*result != 0) ? ALLOCHUNK(last) : 0; size_t want = last + next + 2; if (want >= have) { want = ALLOCHUNK(want); if (last != 0) { *result = TypeRealloc(char, want, *result); } else { if ((*result = TypeMallocN(char, want)) != 0) **result = '\0'; } } } static void append_fontname_str(char **result, const char *value) { if (value == 0) value = "*"; alloca_fontname(result, strlen(value)); if (*result != 0) { if (**result != '\0') strcat(*result, "-"); strcat(*result, value); } } static void append_fontname_num(char **result, int value) { if (value < 0) { append_fontname_str(result, "*"); } else { char temp[100]; sprintf(temp, "%d", value); append_fontname_str(result, temp); } } /* * Take the given font props and try to make a well formed font name specifying * the same base font and size and everything, but with different weight/width * according to the parameters. The return value is allocated, should be freed * by the caller. */ static char * derive_font_name(FontNameProperties * props, const char *use_weight, int use_average_width, const char *use_encoding) { char *result = 0; append_fontname_str(&result, props->beginning); append_fontname_str(&result, use_weight); append_fontname_str(&result, props->slant); append_fontname_str(&result, 0); append_fontname_str(&result, 0); append_fontname_num(&result, props->pixel_size); append_fontname_str(&result, props->point_size); append_fontname_num(&result, props->res_x); append_fontname_num(&result, props->res_y); append_fontname_str(&result, props->spacing); append_fontname_num(&result, use_average_width); append_fontname_str(&result, use_encoding); return result; } static char * bold_font_name(FontNameProperties * props, int use_average_width) { return derive_font_name(props, "bold", use_average_width, props->end); } #if OPT_WIDE_CHARS #define derive_wide_font(props, weight) \ derive_font_name(props, weight, props->average_width * 2, "ISO10646-1") static char * wide_font_name(FontNameProperties * props) { return derive_wide_font(props, "medium"); } static char * widebold_font_name(FontNameProperties * props) { return derive_wide_font(props, "bold"); } #endif /* OPT_WIDE_CHARS */ #if OPT_DEC_CHRSET /* * Take the given font props and try to make a well formed font name specifying * the same base font but changed depending on the given attributes and chrset. * * For double width fonts, we just double the X-resolution, for double height * fonts we double the pixel-size and Y-resolution */ char * xtermSpecialFont(TScreen * screen, unsigned atts, unsigned chrset) { #if OPT_TRACE static char old_spacing[80]; static FontNameProperties old_props; #endif FontNameProperties *props; char *result = 0; const char *weight; int pixel_size; int res_x; int res_y; props = get_font_name_props(screen->display, screen->fnts[fNorm].fs, 0); if (props == 0) return result; pixel_size = props->pixel_size; res_x = props->res_x; res_y = props->res_y; if (atts & BOLD) weight = "bold"; else weight = props->weight; if (CSET_DOUBLE(chrset)) res_x *= 2; if (chrset == CSET_DHL_TOP || chrset == CSET_DHL_BOT) { res_y *= 2; pixel_size *= 2; } #if OPT_TRACE if (old_props.res_x != res_x || old_props.res_x != res_y || old_props.pixel_size != pixel_size || strcmp(old_props.spacing, props->spacing)) { TRACE(("xtermSpecialFont(atts = %#x, chrset = %#x)\n", atts, chrset)); TRACE(("res_x = %d\n", res_x)); TRACE(("res_y = %d\n", res_y)); TRACE(("point_size = %s\n", props->point_size)); TRACE(("pixel_size = %d\n", pixel_size)); TRACE(("spacing = %s\n", props->spacing)); old_props.res_x = res_x; old_props.res_x = res_y; old_props.pixel_size = pixel_size; old_props.spacing = old_spacing; sprintf(old_spacing, "%.*s", (int) sizeof(old_spacing) - 2, props->spacing); } #endif append_fontname_str(&result, props->beginning); append_fontname_str(&result, weight); append_fontname_str(&result, props->slant); append_fontname_str(&result, props->wideness); append_fontname_str(&result, props->add_style); append_fontname_num(&result, pixel_size); append_fontname_str(&result, props->point_size); append_fontname_num(&result, (atts & NORESOLUTION) ? -1 : res_x); append_fontname_num(&result, (atts & NORESOLUTION) ? -1 : res_y); append_fontname_str(&result, props->spacing); append_fontname_str(&result, 0); append_fontname_str(&result, props->end); return result; } #endif /* OPT_DEC_CHRSET */ /* * Case-independent comparison for font-names, including wildcards. * XLFD allows '?' as a wildcard, but we do not handle that (no one seems * to use it). */ static Bool same_font_name(const char *pattern, const char *match) { Bool result = False; if (pattern && match) { while (*pattern && *match) { if (*pattern == *match) { pattern++; match++; } else if (*pattern == '*' || *match == '*') { if (same_font_name(pattern + 1, match)) { return True; } else if (same_font_name(pattern, match + 1)) { return True; } else { return False; } } else { int p = x_toupper(*pattern++); int m = x_toupper(*match++); if (p != m) return False; } } result = (*pattern == *match); /* both should be NUL */ } return result; } /* * Double-check the fontname that we asked for versus what the font server * actually gave us. The larger fixed fonts do not always have a matching bold * font, and the font server may try to scale another font or otherwise * substitute a mismatched font. * * If we cannot get what we requested, we will fallback to the original * behavior, which simulates bold by overstriking each character at one pixel * offset. */ static int got_bold_font(Display * dpy, XFontStruct * fs, String requested) { char *actual = 0; int got; if (get_font_name_props(dpy, fs, &actual) == 0) got = 0; else got = same_font_name(requested, actual); free(actual); return got; } /* * If the font server tries to adjust another font, it may not adjust it * properly. Check that the bounding boxes are compatible. Otherwise we'll * leave trash on the display when we mix normal and bold fonts. */ static int same_font_size(XtermWidget xw, XFontStruct * nfs, XFontStruct * bfs) { TScreen *screen = TScreenOf(xw); TRACE(("same_font_size height %d/%d, min %d/%d max %d/%d\n", nfs->ascent + nfs->descent, bfs->ascent + bfs->descent, nfs->min_bounds.width, bfs->min_bounds.width, nfs->max_bounds.width, bfs->max_bounds.width)); return screen->free_bold_box || ((nfs->ascent + nfs->descent) == (bfs->ascent + bfs->descent) && (nfs->min_bounds.width == bfs->min_bounds.width || nfs->min_bounds.width == bfs->min_bounds.width + 1) && (nfs->max_bounds.width == bfs->max_bounds.width || nfs->max_bounds.width == bfs->max_bounds.width + 1)); } /* * Check if the font looks like it has fixed width */ static int is_fixed_font(XFontStruct * fs) { if (fs) return (fs->min_bounds.width == fs->max_bounds.width); return 1; } /* * Check if the font looks like a double width font (i.e. contains * characters of width X and 2X */ #if OPT_WIDE_CHARS static int is_double_width_font(XFontStruct * fs) { return ((2 * fs->min_bounds.width) == fs->max_bounds.width); } #else #define is_double_width_font(fs) 0 #endif #if OPT_WIDE_CHARS && OPT_RENDERFONT && defined(HAVE_TYPE_FCCHAR32) #define HALF_WIDTH_TEST_STRING "1234567890" /* '1234567890' in Chinese characters in UTF-8 */ #define FULL_WIDTH_TEST_STRING "\xe4\xb8\x80\xe4\xba\x8c\xe4\xb8\x89" \ "\xe5\x9b\x9b\xe4\xba\x94" \ "\xef\xa7\x91\xe4\xb8\x83\xe5\x85\xab" \ "\xe4\xb9\x9d\xef\xa6\xb2" /* '1234567890' in Korean script in UTF-8 */ #define FULL_WIDTH_TEST_STRING2 "\xec\x9d\xbc\xec\x9d\xb4\xec\x82\xbc" \ "\xec\x82\xac\xec\x98\xa4" \ "\xec\x9c\xa1\xec\xb9\xa0\xed\x8c\x94" \ "\xea\xb5\xac\xec\x98\x81" #define HALF_WIDTH_CHAR1 0x0031 /* '1' */ #define HALF_WIDTH_CHAR2 0x0057 /* 'W' */ #define FULL_WIDTH_CHAR1 0x4E00 /* CJK Ideograph 'number one' */ #define FULL_WIDTH_CHAR2 0xAC00 /* Korean script syllable 'Ka' */ static Bool is_double_width_font_xft(Display * dpy, XftFont * font) { XGlyphInfo gi1, gi2; FcChar32 c1 = HALF_WIDTH_CHAR1, c2 = HALF_WIDTH_CHAR2; String fwstr = FULL_WIDTH_TEST_STRING; String hwstr = HALF_WIDTH_TEST_STRING; /* Some Korean fonts don't have Chinese characters at all. */ if (!XftCharExists(dpy, font, FULL_WIDTH_CHAR1)) { if (!XftCharExists(dpy, font, FULL_WIDTH_CHAR2)) return False; /* Not a CJK font */ else /* a Korean font without CJK Ideographs */ fwstr = FULL_WIDTH_TEST_STRING2; } XftTextExtents32(dpy, font, &c1, 1, &gi1); XftTextExtents32(dpy, font, &c2, 1, &gi2); if (gi1.xOff != gi2.xOff) /* Not a fixed-width font */ return False; XftTextExtentsUtf8(dpy, font, (_Xconst FcChar8 *) hwstr, (int) strlen(hwstr), &gi1); XftTextExtentsUtf8(dpy, font, (_Xconst FcChar8 *) fwstr, (int) strlen(fwstr), &gi2); /* * fontconfig and Xft prior to 2.2(?) set the width of half-width * characters identical to that of full-width character in CJK double-width * (bi-width / monospace) font even though the former is half as wide as * the latter. This was fixed sometime before the release of fontconfig * 2.2 in early 2003. See * http://bugzilla.mozilla.org/show_bug.cgi?id=196312 * In the meantime, we have to check both possibilities. */ return ((2 * gi1.xOff == gi2.xOff) || (gi1.xOff == gi2.xOff)); } #else #define is_double_width_font_xft(dpy, xftfont) 0 #endif #define EmptyFont(fs) (fs != 0 \ && ((fs)->ascent + (fs)->descent == 0 \ || (fs)->max_bounds.width == 0)) #define FontSize(fs) (((fs)->ascent + (fs)->descent) \ * (fs)->max_bounds.width) const VTFontNames * xtermFontName(const char *normal) { static VTFontNames data; if (data.f_n) free((void *) data.f_n); memset(&data, 0, sizeof(data)); data.f_n = x_strdup(normal); return &data; } static void cache_menu_font_name(TScreen * screen, int fontnum, int which, const char *name) { if (name != 0) { char *last = (char *) screen->menu_font_names[fontnum][which]; if (last != 0) { if (strcmp(last, name)) { free(last); TRACE(("caching menu fontname %d.%d %s\n", fontnum, which, name)); screen->menu_font_names[fontnum][which] = x_strdup(name); } } else { TRACE(("caching menu fontname %d.%d %s\n", fontnum, which, name)); screen->menu_font_names[fontnum][which] = x_strdup(name); } } } /* * Open the given font and verify that it is non-empty. Return a null on * failure. */ Bool xtermOpenFont(XtermWidget xw, const char *name, XTermFonts * result, fontWarningTypes warn, Bool force) { Bool code = False; TScreen *screen = TScreenOf(xw); if (!IsEmpty(name)) { if ((result->fs = XLoadQueryFont(screen->display, name)) != 0) { code = True; if (EmptyFont(result->fs)) { (void) xtermCloseFont(xw, result); code = False; } else { result->fn = x_strdup(name); } } else if (XmuCompareISOLatin1(name, DEFFONT) != 0) { if (warn <= xw->misc.fontWarnings #if OPT_RENDERFONT && !UsingRenderFont(xw) #endif ) { TRACE(("OOPS: cannot load font %s\n", name)); xtermWarning("cannot load font '%s'\n", name); #if OPT_RENDERFONT /* * Do a sanity check in case someone's mixed up xterm with * one of those programs that read their resource data from * xterm's namespace. */ if (strchr(name, ':') != 0 || strchr(name, '=') != 0) { xtermWarning("Use the \"-fa\" option for the Xft fonts\n"); } #endif } else { TRACE(("xtermOpenFont: cannot load font '%s'\n", name)); } if (force) { code = xtermOpenFont(xw, DEFFONT, result, fwAlways, True); } } } return code; } /* * Close the font and free the font info. */ XTermFonts * xtermCloseFont(XtermWidget xw, XTermFonts * fnt) { if (fnt != 0 && fnt->fs != 0) { TScreen *screen = TScreenOf(xw); clrCgsFonts(xw, WhichVWin(screen), fnt); XFreeFont(screen->display, fnt->fs); xtermFreeFontInfo(fnt); } return 0; } /* * Close the listed fonts, noting that some may use copies of the pointer. */ void xtermCloseFonts(XtermWidget xw, XTermFonts * fnts) { int j, k; for (j = 0; j < fMAX; ++j) { /* * Need to save the pointer since xtermCloseFont zeroes it */ XFontStruct *thisFont = fnts[j].fs; if (thisFont != 0) { xtermCloseFont(xw, &fnts[j]); for (k = j + 1; k < fMAX; ++k) { if (thisFont == fnts[k].fs) xtermFreeFontInfo(&fnts[k]); } } } } /* * Make a copy of the source, assuming the XFontStruct's to be unique, but * ensuring that the names are reallocated to simplify freeing. */ void xtermCopyFontInfo(XTermFonts * target, XTermFonts * source) { xtermFreeFontInfo(target); target->chrset = source->chrset; target->flags = source->flags; target->fn = x_strdup(source->fn); target->fs = source->fs; } void xtermFreeFontInfo(XTermFonts * target) { target->chrset = 0; target->flags = 0; if (target->fn != 0) { free(target->fn); target->fn = 0; } target->fs = 0; } int xtermLoadFont(XtermWidget xw, const VTFontNames * fonts, Bool doresize, int fontnum) { TScreen *screen = TScreenOf(xw); VTwin *win = WhichVWin(screen); VTFontNames myfonts; FontNameProperties *fp; XTermFonts fnts[fMAX]; Pixel new_normal; Pixel new_revers; char *tmpname = NULL; char *normal = NULL; Boolean proportional = False; fontWarningTypes warn[fMAX]; int j; memset(&myfonts, 0, sizeof(myfonts)); memset(fnts, 0, sizeof(fnts)); if (fonts != 0) myfonts = *fonts; if (!check_fontname(myfonts.f_n)) return 0; /* * Check the font names against the resource values, to see which were * derived in a previous call. If so, we'll only warn about those if * the warning level is set to "always". */ for (j = 0; j < fMAX; ++j) { warn[j] = fwAlways; } #define CmpResource(field, index) \ if (same_font_name(screen->menu_font_names[fontnum][index], myfonts.field)) \ warn[index] = fwResource CmpResource(f_n, fNorm); if (fontnum == fontMenu_default) { CmpResource(f_b, fBold); #if OPT_WIDE_CHARS CmpResource(f_b, fWide); CmpResource(f_b, fWBold); #endif } if (fontnum == fontMenu_fontescape && myfonts.f_n != screen->MenuFontName(fontnum)) { if ((tmpname = x_strdup(myfonts.f_n)) == 0) return 0; } TRACE(("Begin Cgs - xtermLoadFont(%s)\n", myfonts.f_n)); releaseWindowGCs(xw, win); #define DbgResource(name, field, index) \ TRACE(("xtermLoadFont #%d "name" %s%s\n", \ fontnum, \ (warn[index] == fwResource) ? "*" : " ", \ NonNull(myfonts.field))) DbgResource("normal", f_n, fNorm); DbgResource("bold ", f_b, fBold); #if OPT_WIDE_CHARS DbgResource("wide ", f_w, fWide); DbgResource("w/bold", f_wb, fWBold); #endif /* * If we are opening the default font, and it happens to be missing, force * that to the compiled-in default font, e.g., "fixed". If we cannot open * the font, disable it from the menu. */ if (!xtermOpenFont(xw, myfonts.f_n, &fnts[fNorm], warn[fNorm], (fontnum == fontMenu_default))) { SetItemSensitivity(fontMenuEntries[fontnum].widget, False); goto bad; } normal = x_strdup(myfonts.f_n); if (!check_fontname(myfonts.f_b)) { warn[fBold] = fwAlways; fp = get_font_name_props(screen->display, fnts[fNorm].fs, &normal); if (fp != 0) { myfonts.f_b = bold_font_name(fp, fp->average_width); if (!xtermOpenFont(xw, myfonts.f_b, &fnts[fBold], fwAlways, False)) { myfonts.f_b = bold_font_name(fp, -1); xtermOpenFont(xw, myfonts.f_b, &fnts[fBold], fwAlways, False); } TRACE(("...derived bold '%s'\n", NonNull(myfonts.f_b))); } if (fp == 0 || fnts[fBold].fs == 0) { xtermCopyFontInfo(&fnts[fBold], &fnts[fNorm]); TRACE(("...cannot load a matching bold font\n")); } else if (same_font_size(xw, fnts[fNorm].fs, fnts[fBold].fs) && got_bold_font(screen->display, fnts[fBold].fs, myfonts.f_b)) { TRACE(("...got a matching bold font\n")); cache_menu_font_name(screen, fontnum, fBold, myfonts.f_b); } else { xtermCloseFont(xw, &fnts[fBold]); fnts[fBold] = fnts[fNorm]; TRACE(("...did not get a matching bold font\n")); } } else if (!xtermOpenFont(xw, myfonts.f_b, &fnts[fBold], warn[fBold], False)) { xtermCopyFontInfo(&fnts[fBold], &fnts[fNorm]); warn[fBold] = fwAlways; TRACE(("...cannot load bold font '%s'\n", NonNull(myfonts.f_b))); } else { cache_menu_font_name(screen, fontnum, fBold, myfonts.f_b); } /* * If there is no widefont specified, fake it by doubling AVERAGE_WIDTH * of normal fonts XLFD, and asking for it. This plucks out 18x18ja * and 12x13ja as the corresponding fonts for 9x18 and 6x13. */ if_OPT_WIDE_CHARS(screen, { Boolean derived; char *bold = NULL; if (check_fontname(myfonts.f_w)) { cache_menu_font_name(screen, fontnum, fWide, myfonts.f_w); } else if (screen->utf8_fonts && !is_double_width_font(fnts[fNorm].fs)) { fp = get_font_name_props(screen->display, fnts[fNorm].fs, &normal); if (fp != 0) { myfonts.f_w = wide_font_name(fp); warn[fWide] = fwAlways; TRACE(("...derived wide %s\n", NonNull(myfonts.f_w))); cache_menu_font_name(screen, fontnum, fWide, myfonts.f_w); } } if (check_fontname(myfonts.f_w)) { (void) xtermOpenFont(xw, myfonts.f_w, &fnts[fWide], warn[fWide], False); } else { xtermCopyFontInfo(&fnts[fWide], &fnts[fNorm]); warn[fWide] = fwAlways; } derived = False; if (!check_fontname(myfonts.f_wb)) { fp = get_font_name_props(screen->display, fnts[fBold].fs, &bold); if (fp != 0) { myfonts.f_wb = widebold_font_name(fp); warn[fWBold] = fwAlways; derived = True; } } if (check_fontname(myfonts.f_wb)) { xtermOpenFont(xw, myfonts.f_wb, &fnts[fWBold], (screen->utf8_fonts ? warn[fWBold] : (fontWarningTypes) (xw->misc.fontWarnings + 1)), False); if (derived && !compatibleWideCounts(fnts[fWide].fs, fnts[fWBold].fs)) { xtermCloseFont(xw, &fnts[fWBold]); } if (fnts[fWBold].fs == 0) { if (IsEmpty(myfonts.f_w)) { myfonts.f_wb = myfonts.f_b; warn[fWBold] = fwAlways; xtermCopyFontInfo(&fnts[fWBold], &fnts[fBold]); TRACE(("...cannot load wide-bold, use bold %s\n", NonNull(myfonts.f_b))); } else { myfonts.f_wb = myfonts.f_w; warn[fWBold] = fwAlways; xtermCopyFontInfo(&fnts[fWBold], &fnts[fWide]); TRACE(("...cannot load wide-bold, use wide %s\n", NonNull(myfonts.f_w))); } } else { TRACE(("...%s wide/bold %s\n", derived ? "derived" : "given", NonNull(myfonts.f_wb))); cache_menu_font_name(screen, fontnum, fWBold, myfonts.f_wb); } } else if (is_double_width_font(fnts[fBold].fs)) { xtermCopyFontInfo(&fnts[fWBold], &fnts[fBold]); warn[fWBold] = fwAlways; TRACE(("...bold font is double-width, use it %s\n", NonNull(myfonts.f_b))); } else { xtermCopyFontInfo(&fnts[fWBold], &fnts[fWide]); warn[fWBold] = fwAlways; TRACE(("...cannot load wide bold font, use wide %s\n", NonNull(myfonts.f_w))); } free(bold); if (EmptyFont(fnts[fWBold].fs)) goto bad; /* can't use a 0-sized font */ }); /* * Most of the time this call to load the font will succeed, even if * there is no wide font : the X server doubles the width of the * normal font, or similar. * * But if it did fail for some reason, then nevermind. */ if (EmptyFont(fnts[fBold].fs)) goto bad; /* can't use a 0-sized font */ if (!same_font_size(xw, fnts[fNorm].fs, fnts[fBold].fs) && (is_fixed_font(fnts[fNorm].fs) && is_fixed_font(fnts[fBold].fs))) { TRACE(("...ignoring mismatched normal/bold fonts\n")); xtermCloseFont(xw, &fnts[fBold]); xtermCopyFontInfo(&fnts[fBold], &fnts[fNorm]); } if_OPT_WIDE_CHARS(screen, { if (fnts[fWide].fs != 0 && fnts[fWBold].fs != 0 && !same_font_size(xw, fnts[fWide].fs, fnts[fWBold].fs) && (is_fixed_font(fnts[fWide].fs) && is_fixed_font(fnts[fWBold].fs))) { TRACE(("...ignoring mismatched normal/bold wide fonts\n")); xtermCloseFont(xw, &fnts[fWBold]); xtermCopyFontInfo(&fnts[fWBold], &fnts[fWide]); } }); /* * Normal/bold fonts should be the same width. Also, the min/max * values should be the same. */ if (!is_fixed_font(fnts[fNorm].fs) || !is_fixed_font(fnts[fBold].fs) || fnts[fNorm].fs->max_bounds.width != fnts[fBold].fs->max_bounds.width) { TRACE(("Proportional font! normal %d/%d, bold %d/%d\n", fnts[fNorm].fs->min_bounds.width, fnts[fNorm].fs->max_bounds.width, fnts[fBold].fs->min_bounds.width, fnts[fBold].fs->max_bounds.width)); proportional = True; } if_OPT_WIDE_CHARS(screen, { if (fnts[fWide].fs != 0 && fnts[fWBold].fs != 0 && (!is_fixed_font(fnts[fWide].fs) || !is_fixed_font(fnts[fWBold].fs) || fnts[fWide].fs->max_bounds.width != fnts[fWBold].fs->max_bounds.width)) { TRACE(("Proportional font! wide %d/%d, wide bold %d/%d\n", fnts[fWide].fs->min_bounds.width, fnts[fWide].fs->max_bounds.width, fnts[fWBold].fs->min_bounds.width, fnts[fWBold].fs->max_bounds.width)); proportional = True; } }); /* TODO : enforce that the width of the wide font is 2* the width of the narrow font */ /* * If we're switching fonts, free the old ones. Otherwise we'll leak * the memory that is associated with the old fonts. The * XLoadQueryFont call allocates a new XFontStruct. */ xtermCloseFonts(xw, screen->fnts); xtermCopyFontInfo(&(screen->fnts[fNorm]), &fnts[fNorm]); xtermCopyFontInfo(&(screen->fnts[fBold]), &fnts[fBold]); #if OPT_WIDE_CHARS xtermCopyFontInfo(&(screen->fnts[fWide]), &fnts[fWide]); if (fnts[fWBold].fs == NULL) xtermCopyFontInfo(&fnts[fWBold], &fnts[fWide]); xtermCopyFontInfo(&(screen->fnts[fWBold]), &fnts[fWBold]); #endif new_normal = getXtermForeground(xw, xw->flags, xw->cur_foreground); new_revers = getXtermBackground(xw, xw->flags, xw->cur_background); setCgsFore(xw, win, gcNorm, new_normal); setCgsBack(xw, win, gcNorm, new_revers); setCgsFont(xw, win, gcNorm, &(screen->fnts[fNorm])); copyCgs(xw, win, gcBold, gcNorm); setCgsFont(xw, win, gcBold, &(screen->fnts[fBold])); setCgsFore(xw, win, gcNormReverse, new_revers); setCgsBack(xw, win, gcNormReverse, new_normal); setCgsFont(xw, win, gcNormReverse, &(screen->fnts[fNorm])); copyCgs(xw, win, gcBoldReverse, gcNormReverse); setCgsFont(xw, win, gcBoldReverse, &(screen->fnts[fBold])); if_OPT_WIDE_CHARS(screen, { if (screen->fnts[fWide].fs != 0 && screen->fnts[fWBold].fs != 0) { setCgsFore(xw, win, gcWide, new_normal); setCgsBack(xw, win, gcWide, new_revers); setCgsFont(xw, win, gcWide, &(screen->fnts[fWide])); copyCgs(xw, win, gcWBold, gcWide); setCgsFont(xw, win, gcWBold, &(screen->fnts[fWBold])); setCgsFore(xw, win, gcWideReverse, new_revers); setCgsBack(xw, win, gcWideReverse, new_normal); setCgsFont(xw, win, gcWideReverse, &(screen->fnts[fWide])); copyCgs(xw, win, gcWBoldReverse, gcWideReverse); setCgsFont(xw, win, gcWBoldReverse, &(screen->fnts[fWBold])); } }); #if OPT_BOX_CHARS screen->allow_packing = proportional; setupPackedFonts(xw); #endif screen->fnt_prop = (Boolean) (proportional && !(screen->force_packed)); screen->fnt_boxes = True; #if OPT_BOX_CHARS /* * Xterm uses character positions 1-31 of a font for the line-drawing * characters. Check that they are all present. The null character * (0) is special, and is not used. */ #if OPT_RENDERFONT if (UsingRenderFont(xw)) { /* * FIXME: we shouldn't even be here if we're using Xft. */ screen->fnt_boxes = False; TRACE(("assume Xft missing line-drawing chars\n")); } else #endif { unsigned ch; for (ch = 1; ch < 32; ch++) { unsigned n = ch; #if OPT_WIDE_CHARS if (screen->utf8_mode || screen->unicode_font) { n = dec2ucs(ch); if (n == UCS_REPL) continue; } #endif if (IsXtermMissingChar(screen, n, &fnts[fNorm])) { TRACE(("missing normal char #%d\n", n)); screen->fnt_boxes = False; break; } if (IsXtermMissingChar(screen, n, &fnts[fBold])) { TRACE(("missing bold char #%d\n", n)); screen->fnt_boxes = False; break; } } } TRACE(("Will %suse internal line-drawing characters\n", screen->fnt_boxes ? "not " : "")); #endif if (screen->always_bold_mode) { screen->enbolden = screen->bold_mode; } else { screen->enbolden = screen->bold_mode && ((fnts[fNorm].fs == fnts[fBold].fs) || same_font_name(normal, myfonts.f_b)); } TRACE(("Will %suse 1-pixel offset/overstrike to simulate bold\n", screen->enbolden ? "" : "not ")); set_menu_font(False); screen->menu_font_number = fontnum; set_menu_font(True); if (tmpname) { /* if setting escape or sel */ if (screen->MenuFontName(fontnum)) free((void *) screen->MenuFontName(fontnum)); screen->MenuFontName(fontnum) = tmpname; if (fontnum == fontMenu_fontescape) { SetItemSensitivity(fontMenuEntries[fontMenu_fontescape].widget, True); } #if OPT_SHIFT_FONTS screen->menu_font_sizes[fontnum] = FontSize(fnts[fNorm].fs); #endif } if (normal) free(normal); set_cursor_gcs(xw); xtermUpdateFontInfo(xw, doresize); TRACE(("Success Cgs - xtermLoadFont\n")); return 1; bad: if (normal) free(normal); if (tmpname) free(tmpname); #if OPT_RENDERFONT if (x_strcasecmp(myfonts.f_n, DEFFONT)) { int code; myfonts.f_n = DEFFONT; TRACE(("...recovering for TrueType fonts\n")); code = xtermLoadFont(xw, &myfonts, doresize, fontnum); if (code) { SetItemSensitivity(fontMenuEntries[fontnum].widget, UsingRenderFont(xw)); TRACE(("...recovered size %dx%d\n", FontHeight(screen), FontWidth(screen))); } return code; } #endif releaseWindowGCs(xw, win); xtermCloseFonts(xw, fnts); TRACE(("Fail Cgs - xtermLoadFont\n")); return 0; } #if OPT_LOAD_VTFONTS || OPT_WIDE_CHARS /* * Collect font-names that we can modify with the load-vt-fonts() action. */ #define MERGE_SUBFONT(src,dst,name) \ if (IsEmpty(dst.name)) { \ TRACE(("MERGE_SUBFONT " #dst "." #name " merge %s\n", NonNull(src.name))); \ dst.name = src.name; \ } else { \ TRACE(("MERGE_SUBFONT " #dst "." #name " found %s\n", NonNull(dst.name))); \ } #define INFER_SUBFONT(src,dst,name) \ if (IsEmpty(dst.name)) { \ TRACE(("INFER_SUBFONT " #dst "." #name " will infer\n")); \ dst.name = x_strdup(""); \ } else { \ TRACE(("INFER_SUBFONT " #dst "." #name " found %s\n", NonNull(dst.name))); \ } #define COPY_MENU_FONTS(src,dst) \ TRACE(("COPY_MENU_FONTS " #src " to " #dst "\n")); \ for (n = fontMenu_default; n <= fontMenu_lastBuiltin; ++n) { \ for (m = 0; m < fMAX; ++m) { \ dst.menu_font_names[n][m] = x_strdup(src.menu_font_names[n][m]); \ } \ TRACE((".. " #dst ".menu_fonts_names[%d] = %s\n", n, dst.menu_font_names[n][fNorm])); \ } void xtermSaveVTFonts(XtermWidget xw) { TScreen *screen = TScreenOf(xw); Cardinal n, m; if (!screen->savedVTFonts) { screen->savedVTFonts = True; TRACE(("xtermSaveVTFonts saving original\n")); screen->cacheVTFonts.default_font = xw->misc.default_font; COPY_MENU_FONTS(xw->screen, screen->cacheVTFonts); } } #define SAME_STRING(x,y) ((x) == (y) || ((x) && (y) && !strcmp(x, y))) #define SAME_MEMBER(n) SAME_STRING(a->n, b->n) static Boolean sameSubResources(SubResourceRec * a, SubResourceRec * b) { Boolean result = True; int n; if (!SAME_MEMBER(default_font.f_n) || !SAME_MEMBER(default_font.f_b) #if OPT_WIDE_CHARS || !SAME_MEMBER(default_font.f_w) || !SAME_MEMBER(default_font.f_wb) #endif ) { TRACE(("sameSubResources: default_font differs\n")); result = False; } else { for (n = 0; n < NMENUFONTS; ++n) { if (!SAME_MEMBER(menu_font_names[n][fNorm])) { TRACE(("sameSubResources: menu_font_names[%d] differs\n", n)); result = False; break; } } } return result; } /* * Load the "VT" font names from the given subresource name/class. These * correspond to the VT100 resources. */ static Bool xtermLoadVTFonts(XtermWidget xw, String myName, String myClass) { SubResourceRec subresourceRec; SubResourceRec referenceRec; /* * These are duplicates of the VT100 font resources, but with a special * application/classname passed in to distinguish them. */ static XtResource font_resources[] = { Sres(XtNfont, XtCFont, default_font.f_n, DEFFONT), Sres(XtNboldFont, XtCBoldFont, default_font.f_b, DEFBOLDFONT), #if OPT_WIDE_CHARS Sres(XtNwideFont, XtCWideFont, default_font.f_w, DEFWIDEFONT), Sres(XtNwideBoldFont, XtCWideBoldFont, default_font.f_wb, DEFWIDEBOLDFONT), #endif Sres(XtNfont1, XtCFont1, MenuFontName(fontMenu_font1), NULL), Sres(XtNfont2, XtCFont2, MenuFontName(fontMenu_font2), NULL), Sres(XtNfont3, XtCFont3, MenuFontName(fontMenu_font3), NULL), Sres(XtNfont4, XtCFont4, MenuFontName(fontMenu_font4), NULL), Sres(XtNfont5, XtCFont5, MenuFontName(fontMenu_font5), NULL), Sres(XtNfont6, XtCFont6, MenuFontName(fontMenu_font6), NULL), }; Cardinal n, m; Bool status = True; TScreen *screen = TScreenOf(xw); TRACE(("called xtermLoadVTFonts(name=%s, class=%s)\n", NonNull(myName), NonNull(myClass))); xtermSaveVTFonts(xw); if (IsEmpty(myName)) { TRACE(("xtermLoadVTFonts restoring original\n")); xw->misc.default_font = screen->cacheVTFonts.default_font; COPY_MENU_FONTS(screen->cacheVTFonts, xw->screen); for (n = 0; n < XtNumber(screen->cacheVTFonts.menu_font_names); ++n) { screen->MenuFontName(n) = screen->cacheVTFonts.MenuFontName(n); } } else { TRACE(("xtermLoadVTFonts(%s, %s)\n", myName, myClass)); memset(&referenceRec, 0, sizeof(referenceRec)); memset(&subresourceRec, 0, sizeof(subresourceRec)); XtGetSubresources((Widget) xw, (XtPointer) &subresourceRec, myName, myClass, font_resources, (Cardinal) XtNumber(font_resources), NULL, (Cardinal) 0); /* * XtGetSubresources returns no status, so we compare the returned * data against a zero'd struct to see if any data is returned. */ if (memcmp(&referenceRec, &subresourceRec, sizeof(referenceRec)) && !sameSubResources(&(screen->cacheVTFonts), &subresourceRec)) { screen->mergedVTFonts = True; /* * If a particular resource value was not found, use the original. */ MERGE_SUBFONT(xw->misc, subresourceRec, default_font.f_n); INFER_SUBFONT(xw->misc, subresourceRec, default_font.f_b); #if OPT_WIDE_CHARS INFER_SUBFONT(xw->misc, subresourceRec, default_font.f_w); INFER_SUBFONT(xw->misc, subresourceRec, default_font.f_wb); #endif for (n = fontMenu_font1; n <= fontMenu_lastBuiltin; ++n) MERGE_SUBFONT(xw->screen, subresourceRec, MenuFontName(n)); /* * Finally, copy the subresource data to the widget. */ xw->misc.default_font = subresourceRec.default_font; COPY_MENU_FONTS(subresourceRec, xw->screen); screen->MenuFontName(fontMenu_default) = x_strdup(xw->misc.default_font.f_n); screen->menu_font_names[0][fBold] = x_strdup(xw->misc.default_font.f_b); #if OPT_WIDE_CHARS screen->menu_font_names[0][fWide] = x_strdup(xw->misc.default_font.f_w); screen->menu_font_names[0][fWBold] = x_strdup(xw->misc.default_font.f_wb); #endif } else { TRACE(("...no resources found\n")); status = False; } } return status; } #if OPT_WIDE_CHARS static Bool isWideFont(XFontStruct * fp, const char *tag, Bool nullOk) { Bool result = False; (void) tag; if (okFont(fp)) { unsigned count = countGlyphs(fp); TRACE(("isWideFont(%s) found %d cells\n", tag, count)); result = (count > 256) ? True : False; } else { result = nullOk; } return result; } /* * If the current fonts are not wide, load the UTF8 fonts. * * Called during initialization (for wide-character mode), the fonts have not * been setup, so we pass nullOk=True to isWideFont(). * * Called after initialization, e.g., in response to the UTF-8 menu entry * (starting from narrow character mode), it checks if the fonts are not wide. */ Bool xtermLoadWideFonts(XtermWidget xw, Bool nullOk) { TScreen *screen = TScreenOf(xw); Bool result; if (EmptyFont(screen->fnts[fWide].fs)) { result = (isWideFont(screen->fnts[fNorm].fs, "normal", nullOk) && isWideFont(screen->fnts[fBold].fs, "bold", nullOk)); } else { result = (isWideFont(screen->fnts[fWide].fs, "wide", nullOk) && isWideFont(screen->fnts[fWBold].fs, "wide-bold", nullOk)); if (result && !screen->utf8_latin1) { result = (isWideFont(screen->fnts[fNorm].fs, "normal", nullOk) && isWideFont(screen->fnts[fBold].fs, "bold", nullOk)); } } if (!result) { TRACE(("current fonts are not all wide%s\n", nullOk ? " nullOk" : "")); result = xtermLoadVTFonts(xw, XtNutf8Fonts, XtCUtf8Fonts); } TRACE(("xtermLoadWideFonts:%d\n", result)); return result; } #endif /* OPT_WIDE_CHARS */ /* * Restore the default fonts, i.e., if we had switched to wide-fonts. */ Bool xtermLoadDefaultFonts(XtermWidget xw) { Bool result; result = xtermLoadVTFonts(xw, NULL, NULL); TRACE(("xtermLoadDefaultFonts:%d\n", result)); return result; } #endif /* OPT_LOAD_VTFONTS || OPT_WIDE_CHARS */ #if OPT_LOAD_VTFONTS void HandleLoadVTFonts(Widget w, XEvent * event GCC_UNUSED, String * params GCC_UNUSED, Cardinal *param_count GCC_UNUSED) { static char empty[] = ""; /* appease strict compilers */ XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TScreen *screen = TScreenOf(xw); char name_buf[80]; char class_buf[80]; String name = (String) ((*param_count > 0) ? params[0] : empty); char *myName = (char *) MyStackAlloc(strlen(name) + 1, name_buf); String convert = (String) ((*param_count > 1) ? params[1] : myName); char *myClass = (char *) MyStackAlloc(strlen(convert) + 1, class_buf); int n; TRACE(("HandleLoadVTFonts(%d)\n", *param_count)); strcpy(myName, name); strcpy(myClass, convert); if (*param_count == 1) myClass[0] = x_toupper(myClass[0]); if (xtermLoadVTFonts(xw, myName, myClass)) { /* * When switching fonts, try to preserve the font-menu selection, since * it is less surprising to do that (if the font-switching can be * undone) than to switch to "Default". */ int font_number = screen->menu_font_number; if (font_number > fontMenu_lastBuiltin) font_number = fontMenu_lastBuiltin; for (n = 0; n < NMENUFONTS; ++n) screen->menu_font_sizes[n] = 0; SetVTFont(xw, font_number, True, ((font_number == fontMenu_default) ? &(xw->misc.default_font) : NULL)); } MyStackFree(myName, name_buf); MyStackFree(myClass, class_buf); } } #endif /* OPT_LOAD_VTFONTS */ /* * Set the limits for the box that outlines the cursor. */ void xtermSetCursorBox(TScreen * screen) { static XPoint VTbox[NBOX]; XPoint *vp; int fw = FontWidth(screen) - 1; int fh = FontHeight(screen) - 1; int ww = isCursorBar(screen) ? 1 : fw; int hh = isCursorUnderline(screen) ? 1 : fh; vp = &VTbox[1]; (vp++)->x = (short) ww; (vp++)->y = (short) hh; (vp++)->x = (short) -ww; vp->y = (short) -hh; screen->box = VTbox; } #define CACHE_XFT(dst,src) if (src != 0) {\ checkXft(xw, &(dst[fontnum]), src);\ TRACE(("Xft metrics %s[%d] = %d (%d,%d)%s advance %d, actual %d%s\n",\ #dst,\ fontnum,\ src->height,\ src->ascent,\ src->descent,\ ((src->ascent + src->descent) > src->height ? "*" : ""),\ src->max_advance_width,\ dst[fontnum].map.min_width,\ dst[fontnum].map.mixed ? " mixed" : ""));\ } #if OPT_RENDERFONT #if OPT_TRACE > 1 static FcChar32 xtermXftFirstChar(XftFont * xft) { FcChar32 map[FC_CHARSET_MAP_SIZE]; FcChar32 next; FcChar32 first; int i; first = FcCharSetFirstPage(xft->charset, map, &next); for (i = 0; i < FC_CHARSET_MAP_SIZE; i++) if (map[i]) { FcChar32 bits = map[i]; first += i * 32; while (!(bits & 0x1)) { bits >>= 1; first++; } break; } return first; } static FcChar32 xtermXftLastChar(XftFont * xft) { FcChar32 this, last, next; FcChar32 map[FC_CHARSET_MAP_SIZE]; int i; last = FcCharSetFirstPage(xft->charset, map, &next); while ((this = FcCharSetNextPage(xft->charset, map, &next)) != FC_CHARSET_DONE) last = this; last &= ~0xff; for (i = FC_CHARSET_MAP_SIZE - 1; i >= 0; i--) if (map[i]) { FcChar32 bits = map[i]; last += i * 32 + 31; while (!(bits & 0x80000000)) { last--; bits <<= 1; } break; } return (long) last; } static void dumpXft(XtermWidget xw, XTermXftFonts * data) { XftFont *xft = data->font; TScreen *screen = TScreenOf(xw); VTwin *win = WhichVWin(screen); FcChar32 c; FcChar32 first = xtermXftFirstChar(xft); FcChar32 last = xtermXftLastChar(xft); unsigned count = 0; unsigned outside = 0; TRACE(("dumpXft {{\n")); TRACE((" data range %#6x..%#6x\n", first, last)); for (c = first; c <= last; ++c) { if (FcCharSetHasChar(xft->charset, c)) { int width = my_wcwidth((int) c); XGlyphInfo extents; XftTextExtents32(XtDisplay(xw), xft, &c, 1, &extents); TRACE(("%#6x %2d %.1f\n", c, width, ((double) extents.width) / win->f_width)); if (extents.width > win->f_width) ++outside; ++count; } } TRACE(("}} %u total, %u outside\n", count, outside)); } #define DUMP_XFT(xw, data) dumpXft(xw, data) #else #define DUMP_XFT(xw, data) /* nothing */ #endif static void checkXft(XtermWidget xw, XTermXftFonts * data, XftFont * xft) { FcChar32 c; Dimension width = 0; data->font = xft; data->map.min_width = 0; data->map.max_width = (Dimension) xft->max_advance_width; /* * For each ASCII or ISO-8859-1 printable code, ask what its width is. * Given the maximum width for those, we have a reasonable estimate of * the single-column width. * * Ignore control characters - their extent information is misleading. */ for (c = 32; c < 256; ++c) { if (c >= 127 && c <= 159) continue; if (FcCharSetHasChar(xft->charset, c)) { XGlyphInfo extents; XftTextExtents32(XtDisplay(xw), xft, &c, 1, &extents); if (width < extents.width && extents.width <= data->map.max_width) { width = extents.width; } } } data->map.min_width = width; data->map.mixed = (data->map.max_width >= (data->map.min_width + 1)); } static XftFont * xtermOpenXft(XtermWidget xw, const char *name, XftPattern * pat, const char *tag) { TScreen *screen = TScreenOf(xw); Display *dpy = screen->display; XftPattern *match; XftResult status; XftFont *result = 0; if (pat != 0) { match = XftFontMatch(dpy, DefaultScreen(dpy), pat, &status); if (match != 0) { result = XftFontOpenPattern(dpy, match); if (result != 0) { TRACE(("...matched %s font\n", tag)); } else { TRACE(("...could did not open %s font\n", tag)); XftPatternDestroy(match); if (xw->misc.fontWarnings >= fwAlways) { TRACE(("OOPS cannot open %s font \"%s\"\n", tag, name)); xtermWarning("cannot open %s font \"%s\"\n", tag, name); } } } else { TRACE(("...did not match %s font\n", tag)); if (xw->misc.fontWarnings >= fwResource) { TRACE(("OOPS: cannot match %s font \"%s\"\n", tag, name)); xtermWarning("cannot match %s font \"%s\"\n", tag, name); } } } return result; } #endif #if OPT_RENDERFONT #if OPT_SHIFT_FONTS /* * Don't make a dependency on the math library for a single function. * (Newton Raphson). */ static double dimSquareRoot(double value) { double result = 0.0; if (value > 0.0) { int n; double older = value; for (n = 0; n < 10; ++n) { double delta = (older * older - value) / (2.0 * older); double newer = older - delta; older = newer; result = newer; if (delta > -0.001 && delta < 0.001) break; } } return result; } #endif /* * Given the Xft font metrics, determine the actual font size. This is used * for each font to ensure that normal, bold and italic fonts follow the same * rule. */ static void setRenderFontsize(TScreen * screen, VTwin * win, XftFont * font, const char *tag) { if (font != 0) { int width, height, ascent, descent; (void) screen; width = font->max_advance_width; height = font->height; ascent = font->ascent; descent = font->descent; if (height < ascent + descent) { TRACE(("...increase height from %d\n", height)); height = ascent + descent; } if (is_double_width_font_xft(screen->display, font)) { TRACE(("...reduced width from %d\n", width)); width >>= 1; } if (tag == 0) { SetFontWidth(screen, win, width); SetFontHeight(screen, win, height); win->f_ascent = ascent; win->f_descent = descent; TRACE(("setRenderFontsize result %dx%d (%d+%d)\n", width, height, ascent, descent)); } else if (win->f_width < width || win->f_height < height || win->f_ascent < ascent || win->f_descent < descent) { TRACE(("setRenderFontsize %s changed %dx%d (%d+%d) to %dx%d (%d+%d)\n", tag, win->f_width, win->f_height, win->f_ascent, win->f_descent, width, height, ascent, descent)); SetFontWidth(screen, win, width); SetFontHeight(screen, win, height); win->f_ascent = ascent; win->f_descent = descent; } else { TRACE(("setRenderFontsize %s unchanged\n", tag)); } } } #endif static void checkFontInfo(int value, const char *tag) { if (value == 0) { xtermWarning("Selected font has no non-zero %s for ISO-8859-1 encoding\n", tag); exit(1); } } #if OPT_RENDERFONT void xtermCloseXft(TScreen * screen, XTermXftFonts * pub) { if (pub->font != 0) { XftFontClose(screen->display, pub->font); pub->font = 0; } } /* * Get the faceName/faceDoublesize resource setting. Strip off "xft:", which * is not recognized by XftNameParse(). */ String getFaceName(XtermWidget xw, Bool wideName GCC_UNUSED) { #if OPT_RENDERWIDE String result = (wideName ? xw->misc.face_wide_name : xw->misc.face_name); #else String result = xw->misc.face_name; #endif if (!IsEmpty(result) && !strncmp(result, "xft:", (size_t) 4)) result += 4; return x_nonempty(result); } /* * If we change the faceName, we'll have to re-acquire all of the fonts that * are derived from it. */ void setFaceName(XtermWidget xw, const char *value) { TScreen *screen = TScreenOf(xw); int n; Boolean changed = (Boolean) ((xw->misc.face_name == 0) || strcmp(xw->misc.face_name, value)); if (changed) { xw->misc.face_name = x_strdup(value); for (n = 0; n < NMENUFONTS; ++n) { xw->misc.face_size[n] = -1.0; xtermCloseXft(screen, &(screen->renderFontNorm[n])); xtermCloseXft(screen, &(screen->renderFontBold[n])); xtermCloseXft(screen, &(screen->renderFontBold[n])); #if OPT_RENDERWIDE xtermCloseXft(screen, &(screen->renderWideNorm[n])); xtermCloseXft(screen, &(screen->renderWideBold[n])); xtermCloseXft(screen, &(screen->renderWideItal[n])); #endif } } } #endif /* * Compute useful values for the font/window sizes */ void xtermComputeFontInfo(XtermWidget xw, VTwin * win, XFontStruct * font, int sbwidth) { TScreen *screen = TScreenOf(xw); int i, j, width, height; #if OPT_RENDERFONT int fontnum = screen->menu_font_number; #endif #if OPT_RENDERFONT /* * xterm contains a lot of references to fonts, assuming they are fixed * size. This chunk of code overrides the actual font-selection (see * drawXtermText()), if the user has selected render-font. All of the * font-loading for fixed-fonts still goes on whether or not this chunk * overrides it. */ if (UsingRenderFont(xw) && fontnum >= 0) { String face_name = getFaceName(xw, False); XftFont *norm = screen->renderFontNorm[fontnum].font; XftFont *bold = screen->renderFontBold[fontnum].font; XftFont *ital = screen->renderFontItal[fontnum].font; #if OPT_RENDERWIDE XftFont *wnorm = screen->renderWideNorm[fontnum].font; XftFont *wbold = screen->renderWideBold[fontnum].font; XftFont *wital = screen->renderWideItal[fontnum].font; #endif if (norm == 0 && face_name) { XftPattern *pat; double face_size; TRACE(("xtermComputeFontInfo font %d: norm(face %s, size %.1f)\n", fontnum, face_name, xw->misc.face_size[fontnum])); fillInFaceSize(xw, fontnum); face_size = xw->misc.face_size[fontnum]; /* * By observation (there is no documentation), XftPatternBuild is * cumulative. Build the bold- and italic-patterns on top of the * normal pattern. */ #define NormXftPattern \ XFT_FAMILY, XftTypeString, "mono", \ XFT_SIZE, XftTypeDouble, face_size, \ XFT_SPACING, XftTypeInteger, XFT_MONO #define BoldXftPattern(norm) \ XFT_WEIGHT, XftTypeInteger, XFT_WEIGHT_BOLD, \ XFT_CHAR_WIDTH, XftTypeInteger, norm->max_advance_width #define ItalXftPattern(norm) \ XFT_SLANT, XftTypeInteger, XFT_SLANT_ITALIC, \ XFT_CHAR_WIDTH, XftTypeInteger, norm->max_advance_width if ((pat = XftNameParse(face_name)) != 0) { #define OPEN_XFT(tag) xtermOpenXft(xw, face_name, pat, tag) XftPatternBuild(pat, NormXftPattern, (void *) 0); norm = OPEN_XFT("normal"); if (norm != 0) { XftPatternBuild(pat, BoldXftPattern(norm), (void *) 0); bold = OPEN_XFT("bold"); #if OPT_ISO_COLORS if (screen->italicULMode && (pat = XftNameParse(face_name)) != 0) { XftPatternBuild(pat, NormXftPattern, ItalXftPattern(norm), (void *) 0); ital = OPEN_XFT("italic"); } #endif /* OPT_ISO_COLORS */ #undef OPEN_XFT /* * FIXME: just assume that the corresponding font has no * graphics characters. */ if (screen->fnt_boxes) { screen->fnt_boxes = False; TRACE(("Xft opened - will %suse internal line-drawing characters\n", screen->fnt_boxes ? "not " : "")); } } XftPatternDestroy(pat); } CACHE_XFT(screen->renderFontNorm, norm); CACHE_XFT(screen->renderFontBold, bold); CACHE_XFT(screen->renderFontItal, ital); /* * See xtermXftDrawString(). */ #if OPT_RENDERWIDE if (norm != 0 && screen->wide_chars) { int char_width = norm->max_advance_width * 2; #ifdef FC_ASPECT double aspect = ((xw->misc.face_wide_name || screen->renderFontNorm[fontnum].map.mixed) ? 1.0 : 2.0); #endif face_name = getFaceName(xw, True); TRACE(("xtermComputeFontInfo wide(face %s, char_width %d)\n", NonNull(face_name), char_width)); #define WideXftPattern \ XFT_FAMILY, XftTypeString, "mono", \ XFT_SIZE, XftTypeDouble, face_size, \ XFT_SPACING, XftTypeInteger, XFT_MONO if (face_name && (pat = XftNameParse(face_name)) != 0) { #define OPEN_XFT(tag) xtermOpenXft(xw, face_name, pat, tag) XftPatternBuild(pat, WideXftPattern, XFT_CHAR_WIDTH, XftTypeInteger, char_width, #ifdef FC_ASPECT FC_ASPECT, XftTypeDouble, aspect, #endif (void *) 0); wnorm = OPEN_XFT("wide"); if (wnorm != 0) { XftPatternBuild(pat, WideXftPattern, BoldXftPattern(wnorm), (void *) 0); wbold = OPEN_XFT("wide-bold"); #if OPT_ISO_COLORS if (screen->italicULMode && (pat = XftNameParse(face_name)) != 0) { XftPatternBuild(pat, WideXftPattern, ItalXftPattern(wnorm), (void *) 0); wital = OPEN_XFT("wide-italic"); } #endif #undef OPEN_XFT } XftPatternDestroy(pat); } CACHE_XFT(screen->renderWideNorm, wnorm); CACHE_XFT(screen->renderWideBold, wbold); CACHE_XFT(screen->renderWideItal, wital); } #endif /* OPT_RENDERWIDE */ } if (norm == 0) { TRACE(("...no TrueType font found for number %d, disable menu entry\n", fontnum)); xw->work.render_font = False; update_font_renderfont(); /* now we will fall through into the bitmap fonts */ } else { setRenderFontsize(screen, win, norm, NULL); setRenderFontsize(screen, win, bold, "bold"); setRenderFontsize(screen, win, ital, "ital"); #if OPT_BOX_CHARS setupPackedFonts(xw); if (screen->force_packed) { XTermXftFonts *use = &(screen->renderFontNorm[fontnum]); SetFontHeight(screen, win, use->font->ascent + use->font->descent); SetFontWidth(screen, win, use->map.min_width); TRACE(("...packed TrueType font %dx%d vs %d\n", win->f_height, win->f_width, use->map.max_width)); } #endif DUMP_XFT(xw, &(screen->renderFontNorm[fontnum])); } } /* * Are we handling a bitmap font? */ else #endif /* OPT_RENDERFONT */ { if (is_double_width_font(font) && !(screen->fnt_prop)) { SetFontWidth(screen, win, font->min_bounds.width); } else { SetFontWidth(screen, win, font->max_bounds.width); } SetFontHeight(screen, win, font->ascent + font->descent); win->f_ascent = font->ascent; win->f_descent = font->descent; } i = 2 * screen->border + sbwidth; j = 2 * screen->border; width = MaxCols(screen) * win->f_width + i; height = MaxRows(screen) * win->f_height + j; win->fullwidth = (Dimension) width; win->fullheight = (Dimension) height; win->width = width - i; win->height = height - j; TRACE(("xtermComputeFontInfo window %dx%d (full %dx%d), fontsize %dx%d (asc %d, dsc %d)\n", win->height, win->width, win->fullheight, win->fullwidth, win->f_height, win->f_width, win->f_ascent, win->f_descent)); checkFontInfo(win->f_height, "height"); checkFontInfo(win->f_width, "width"); } /* save this information as a side-effect for double-sized characters */ void xtermSaveFontInfo(TScreen * screen, XFontStruct * font) { screen->fnt_wide = (Dimension) (font->max_bounds.width); screen->fnt_high = (Dimension) (font->ascent + font->descent); TRACE(("xtermSaveFontInfo %dx%d\n", screen->fnt_high, screen->fnt_wide)); } /* * After loading a new font, update the structures that use its size. */ void xtermUpdateFontInfo(XtermWidget xw, Bool doresize) { TScreen *screen = TScreenOf(xw); int scrollbar_width; VTwin *win = &(screen->fullVwin); scrollbar_width = (xw->misc.scrollbar ? (screen->scrollWidget->core.width + BorderWidth(screen->scrollWidget)) : 0); xtermComputeFontInfo(xw, win, screen->fnts[fNorm].fs, scrollbar_width); xtermSaveFontInfo(screen, screen->fnts[fNorm].fs); if (doresize) { if (VWindow(screen)) { xtermClear(xw); } TRACE(("xtermUpdateFontInfo {{\n")); DoResizeScreen(xw); /* set to the new natural size */ ResizeScrollBar(xw); Redraw(); TRACE(("... }} xtermUpdateFontInfo\n")); #ifdef SCROLLBAR_RIGHT updateRightScrollbar(xw); #endif } xtermSetCursorBox(screen); } #if OPT_BOX_CHARS /* * Returns true if the given character is missing from the specified font. */ Bool xtermMissingChar(unsigned ch, XTermFonts * font) { Bool result = False; XFontStruct *fs = font->fs; static XCharStruct dft, *tmp = &dft, *pc = 0; if (fs->max_byte1 == 0) { #if OPT_WIDE_CHARS if (ch > 255) { TRACE(("xtermMissingChar %#04x (row)\n", ch)); return True; } #endif CI_GET_CHAR_INFO_1D(fs, E2A(ch), tmp, pc); } #if OPT_WIDE_CHARS else { CI_GET_CHAR_INFO_2D(fs, HI_BYTE(ch), LO_BYTE(ch), tmp, pc); } #else if (!pc) return False; /* Urgh! */ #endif if (CI_NONEXISTCHAR(pc)) { TRACE(("xtermMissingChar %#04x (!exists)\n", ch)); result = True; } if (ch < 256) { font->known_missing[ch] = (Char) (result ? 2 : 1); } return result; } /* * The grid is arbitrary, enough resolution that nothing's lost in * initialization. */ #define BOX_HIGH 60 #define BOX_WIDE 60 #define MID_HIGH (BOX_HIGH/2) #define MID_WIDE (BOX_WIDE/2) #define CHR_WIDE ((9*BOX_WIDE)/10) #define CHR_HIGH ((9*BOX_HIGH)/10) /* * ...since we'll scale the values anyway. */ #define SCALED_X(n) ((int)(n) * (((int) font_width) - 1)) / (BOX_WIDE-1) #define SCALED_Y(n) ((int)(n) * (((int) font_height) - 1)) / (BOX_HIGH-1) #define SCALE_X(n) n = SCALED_X(n) #define SCALE_Y(n) n = SCALED_Y(n) #define SEG(x0,y0,x1,y1) x0,y0, x1,y1 /* * Draw the given graphic character, if it is simple enough (i.e., a * line-drawing character). */ void xtermDrawBoxChar(XtermWidget xw, unsigned ch, unsigned flags, GC gc, int x, int y, int cells) { TScreen *screen = TScreenOf(xw); /* *INDENT-OFF* */ static const short glyph_ht[] = { SEG(1*BOX_WIDE/10, 0, 1*BOX_WIDE/10,5*MID_HIGH/6), /* H */ SEG(6*BOX_WIDE/10, 0, 6*BOX_WIDE/10,5*MID_HIGH/6), SEG(1*BOX_WIDE/10,5*MID_HIGH/12,6*BOX_WIDE/10,5*MID_HIGH/12), SEG(2*BOX_WIDE/10, MID_HIGH, CHR_WIDE, MID_HIGH), /* T */ SEG(6*BOX_WIDE/10, MID_HIGH, 6*BOX_WIDE/10, CHR_HIGH), -1 }, glyph_ff[] = { SEG(1*BOX_WIDE/10, 0, 6*BOX_WIDE/10, 0), /* F */ SEG(1*BOX_WIDE/10,5*MID_HIGH/12,6*CHR_WIDE/12,5*MID_HIGH/12), SEG(1*BOX_WIDE/10, 0, 0*BOX_WIDE/3, 5*MID_HIGH/6), SEG(1*BOX_WIDE/3, MID_HIGH, CHR_WIDE, MID_HIGH), /* F */ SEG(1*BOX_WIDE/3, 8*MID_HIGH/6,10*CHR_WIDE/12,8*MID_HIGH/6), SEG(1*BOX_WIDE/3, MID_HIGH, 1*BOX_WIDE/3, CHR_HIGH), -1 }, glyph_lf[] = { SEG(1*BOX_WIDE/10, 0, 1*BOX_WIDE/10,9*MID_HIGH/12), /* L */ SEG(1*BOX_WIDE/10,9*MID_HIGH/12,6*BOX_WIDE/10,9*MID_HIGH/12), SEG(1*BOX_WIDE/3, MID_HIGH, CHR_WIDE, MID_HIGH), /* F */ SEG(1*BOX_WIDE/3, 8*MID_HIGH/6,10*CHR_WIDE/12,8*MID_HIGH/6), SEG(1*BOX_WIDE/3, MID_HIGH, 1*BOX_WIDE/3, CHR_HIGH), -1 }, glyph_nl[] = { SEG(1*BOX_WIDE/10,5*MID_HIGH/6, 1*BOX_WIDE/10, 0), /* N */ SEG(1*BOX_WIDE/10, 0, 5*BOX_WIDE/6, 5*MID_HIGH/6), SEG(5*BOX_WIDE/6, 5*MID_HIGH/6, 5*BOX_WIDE/6, 0), SEG(1*BOX_WIDE/3, MID_HIGH, 1*BOX_WIDE/3, CHR_HIGH), /* L */ SEG(1*BOX_WIDE/3, CHR_HIGH, CHR_WIDE, CHR_HIGH), -1 }, glyph_vt[] = { SEG(1*BOX_WIDE/10, 0, 5*BOX_WIDE/12,5*MID_HIGH/6), /* V */ SEG(5*BOX_WIDE/12,5*MID_HIGH/6, 5*BOX_WIDE/6, 0), SEG(2*BOX_WIDE/10, MID_HIGH, CHR_WIDE, MID_HIGH), /* T */ SEG(6*BOX_WIDE/10, MID_HIGH, 6*BOX_WIDE/10, CHR_HIGH), -1 }, plus_or_minus[] = { SEG( 0, 5*BOX_HIGH/6, CHR_WIDE, 5*BOX_HIGH/6), SEG( MID_WIDE, 2*BOX_HIGH/6, MID_WIDE, 4*BOX_HIGH/6), SEG( 0, 3*BOX_HIGH/6, CHR_WIDE, 3*BOX_HIGH/6), -1 }, lower_right_corner[] = { SEG( 0, MID_HIGH, MID_WIDE, MID_HIGH), SEG( MID_WIDE, MID_HIGH, MID_WIDE, 0), -1 }, upper_right_corner[] = { SEG( 0, MID_HIGH, MID_WIDE, MID_HIGH), SEG( MID_WIDE, MID_HIGH, MID_WIDE, BOX_HIGH), -1 }, upper_left_corner[] = { SEG( MID_WIDE, MID_HIGH, BOX_WIDE, MID_HIGH), SEG( MID_WIDE, MID_HIGH, MID_WIDE, BOX_HIGH), -1 }, lower_left_corner[] = { SEG( MID_WIDE, 0, MID_WIDE, MID_HIGH), SEG( MID_WIDE, MID_WIDE, BOX_WIDE, MID_HIGH), -1 }, cross[] = { SEG( 0, MID_HIGH, BOX_WIDE, MID_HIGH), SEG( MID_WIDE, 0, MID_WIDE, BOX_HIGH), -1 }, scan_line_1[] = { SEG( 0, 0, BOX_WIDE, 0), -1 }, scan_line_3[] = { SEG( 0, BOX_HIGH/4, BOX_WIDE, BOX_HIGH/4), -1 }, scan_line_7[] = { SEG( 0, MID_HIGH, BOX_WIDE, MID_HIGH), -1 }, scan_line_9[] = { SEG( 0, 3*BOX_HIGH/4, BOX_WIDE, 3*BOX_HIGH/4), -1 }, horizontal_line[] = { SEG( 0, BOX_HIGH, BOX_WIDE, BOX_HIGH), -1 }, left_tee[] = { SEG( MID_WIDE, 0, MID_WIDE, BOX_HIGH), SEG( MID_WIDE, MID_HIGH, BOX_WIDE, MID_HIGH), -1 }, right_tee[] = { SEG( MID_WIDE, 0, MID_WIDE, BOX_HIGH), SEG( MID_WIDE, MID_HIGH, 0, MID_HIGH), -1 }, bottom_tee[] = { SEG( 0, MID_HIGH, BOX_WIDE, MID_HIGH), SEG( MID_WIDE, 0, MID_WIDE, MID_HIGH), -1 }, top_tee[] = { SEG( 0, MID_HIGH, BOX_WIDE, MID_HIGH), SEG( MID_WIDE, MID_HIGH, MID_WIDE, BOX_HIGH), -1 }, vertical_line[] = { SEG( MID_WIDE, 0, MID_WIDE, BOX_HIGH), -1 }, less_than_or_equal[] = { SEG( CHR_WIDE, BOX_HIGH/3, 0, MID_HIGH), SEG( CHR_WIDE, 2*BOX_HIGH/3, 0, MID_HIGH), SEG( 0, 3*BOX_HIGH/4, CHR_WIDE, 3*BOX_HIGH/4), -1 }, greater_than_or_equal[] = { SEG( 0, BOX_HIGH/3, CHR_WIDE, MID_HIGH), SEG( 0, 2*BOX_HIGH/3, CHR_WIDE, MID_HIGH), SEG( 0, 3*BOX_HIGH/4, CHR_WIDE, 3*BOX_HIGH/4), -1 }, greek_pi[] = { SEG( 0, MID_HIGH, CHR_WIDE, MID_HIGH), SEG(5*CHR_WIDE/6, MID_HIGH, 5*CHR_WIDE/6, CHR_HIGH), SEG(2*CHR_WIDE/6, MID_HIGH, 2*CHR_WIDE/6, CHR_HIGH), -1 }, not_equal_to[] = { SEG(2*BOX_WIDE/3, 1*BOX_HIGH/3, 1*BOX_WIDE/3, CHR_HIGH), SEG( 0, 2*BOX_HIGH/3, CHR_WIDE, 2*BOX_HIGH/3), SEG( 0, MID_HIGH, CHR_WIDE, MID_HIGH), -1 }; /* *INDENT-ON* */ static const short *lines[] = { 0, /* 00 (unused) */ 0, /* 01 diamond */ 0, /* 02 box */ glyph_ht, /* 03 HT */ glyph_ff, /* 04 FF */ 0, /* 05 CR */ glyph_lf, /* 06 LF */ 0, /* 07 degrees (small circle) */ plus_or_minus, /* 08 */ glyph_nl, /* 09 */ glyph_vt, /* 0A */ lower_right_corner, /* 0B */ upper_right_corner, /* 0C */ upper_left_corner, /* 0D */ lower_left_corner, /* 0E */ cross, /* 0F */ scan_line_1, /* 10 */ scan_line_3, /* 11 */ scan_line_7, /* 12 */ scan_line_9, /* 13 */ horizontal_line, /* 14 */ left_tee, /* 15 */ right_tee, /* 16 */ bottom_tee, /* 17 */ top_tee, /* 18 */ vertical_line, /* 19 */ less_than_or_equal, /* 1A */ greater_than_or_equal, /* 1B */ greek_pi, /* 1C */ not_equal_to, /* 1D */ 0, /* 1E LB */ 0, /* 1F bullet */ }; GC gc2; CgsEnum cgsId = (ch == 2) ? gcDots : gcLine; VTwin *cgsWin = WhichVWin(screen); const short *p; unsigned font_width = (unsigned) (((flags & DOUBLEWFONT) ? 2 : 1) * screen->fnt_wide); unsigned font_height = (unsigned) (((flags & DOUBLEHFONT) ? 2 : 1) * screen->fnt_high); if (cells > 1) font_width *= (unsigned) cells; #if OPT_WIDE_CHARS /* * Try to show line-drawing characters if we happen to be in UTF-8 * mode, but have gotten an old-style font. */ if (screen->utf8_mode #if OPT_RENDERFONT && !UsingRenderFont(xw) #endif && (ch > 127) && (ch != UCS_REPL)) { unsigned n; for (n = 1; n < 32; n++) { if (dec2ucs(n) == ch && !((flags & BOLD) ? IsXtermMissingChar(screen, n, &screen->fnts[fBold]) : IsXtermMissingChar(screen, n, &screen->fnts[fNorm]))) { TRACE(("...use xterm-style linedrawing\n")); ch = n; break; } } } #endif TRACE(("DRAW_BOX(%d) cell %dx%d at %d,%d%s\n", ch, font_height, font_width, y, x, (ch >= (sizeof(lines) / sizeof(lines[0])) ? "-BAD" : ""))); if (cgsId == gcDots) { setCgsFont(xw, cgsWin, cgsId, getCgsFont(xw, cgsWin, gc)); setCgsFore(xw, cgsWin, cgsId, getCgsFore(xw, cgsWin, gc)); setCgsBack(xw, cgsWin, cgsId, getCgsBack(xw, cgsWin, gc)); } else { setCgsFont(xw, cgsWin, cgsId, getCgsFont(xw, cgsWin, gc)); setCgsFore(xw, cgsWin, cgsId, getCgsBack(xw, cgsWin, gc)); setCgsBack(xw, cgsWin, cgsId, getCgsBack(xw, cgsWin, gc)); } gc2 = getCgsGC(xw, cgsWin, cgsId); if (!(flags & NOBACKGROUND)) { XFillRectangle(screen->display, VDrawable(screen), gc2, x, y, font_width, font_height); } setCgsFont(xw, cgsWin, cgsId, getCgsFont(xw, cgsWin, gc)); setCgsFore(xw, cgsWin, cgsId, getCgsFore(xw, cgsWin, gc)); setCgsBack(xw, cgsWin, cgsId, getCgsBack(xw, cgsWin, gc)); gc2 = getCgsGC(xw, cgsWin, cgsId); XSetLineAttributes(screen->display, gc2, (flags & BOLD) ? ((font_height > 12) ? font_height / 12 : 1) : ((font_height > 16) ? font_height / 16 : 1), LineSolid, CapProjecting, JoinMiter); if (ch == 1) { /* diamond */ XPoint points[5]; int npoints = 5, n; points[0].x = MID_WIDE; points[0].y = BOX_HIGH / 4; points[1].x = 8 * BOX_WIDE / 8; points[1].y = MID_HIGH; points[2].x = points[0].x; points[2].y = 3 * BOX_HIGH / 4; points[3].x = 0 * BOX_WIDE / 8; points[3].y = points[1].y; points[4].x = points[0].x; points[4].y = points[0].y; for (n = 0; n < npoints; ++n) { points[n].x = (short) SCALED_X(points[n].x); points[n].y = (short) SCALED_Y(points[n].y); points[n].x = (short) (points[n].x + x); points[n].y = (short) (points[n].y + y); } XFillPolygon(screen->display, VDrawable(screen), gc2, points, npoints, Convex, CoordModeOrigin); } else if (ch == 7) { /* degrees */ unsigned width = (BOX_WIDE / 3); int x_coord = MID_WIDE - (int) (width / 2); int y_coord = MID_HIGH - (int) width; SCALE_X(x_coord); SCALE_Y(y_coord); width = (unsigned) SCALED_X(width); XDrawArc(screen->display, VDrawable(screen), gc2, x + x_coord, y + y_coord, width, width, 0, 360 * 64); } else if (ch == 0x1f) { /* bullet */ unsigned width = 7 * BOX_WIDE / 10; int x_coord = MID_WIDE - (int) (width / 3); int y_coord = MID_HIGH - (int) (width / 3); SCALE_X(x_coord); SCALE_Y(y_coord); width = (unsigned) SCALED_X(width); XDrawArc(screen->display, VDrawable(screen), gc2, x + x_coord, y + y_coord, width, width, 0, 360 * 64); } else if (ch < (sizeof(lines) / sizeof(lines[0])) && (p = lines[ch]) != 0) { int coord[4]; int n = 0; while (*p >= 0) { coord[n++] = *p++; if (n == 4) { SCALE_X(coord[0]); SCALE_Y(coord[1]); SCALE_X(coord[2]); SCALE_Y(coord[3]); XDrawLine(screen->display, VDrawable(screen), gc2, x + coord[0], y + coord[1], x + coord[2], y + coord[3]); n = 0; } } } else if (screen->force_all_chars) { /* bounding rectangle, for debugging */ XDrawRectangle(screen->display, VDrawable(screen), gc2, x, y, font_width - 1, font_height - 1); } } #if OPT_RENDERFONT /* * Check if the given character has a glyph known to Xft. * * see xc/lib/Xft/xftglyphs.c */ Bool xtermXftMissing(XtermWidget xw, XftFont * font, unsigned wc) { Bool result = False; if (font != 0) { TScreen *screen = TScreenOf(xw); if (!XftGlyphExists(screen->display, font, wc)) { #if OPT_WIDE_CHARS TRACE(("xtermXftMissing %d (dec=%#x, ucs=%#x)\n", wc, ucs2dec(wc), dec2ucs(wc))); #else TRACE(("xtermXftMissing %d\n", wc)); #endif result = True; } } return result; } #endif /* OPT_RENDERFONT && OPT_WIDE_CHARS */ #endif /* OPT_BOX_CHARS */ #if OPT_WIDE_CHARS #define MY_UCS(ucs,dec) case ucs: result = dec; break unsigned ucs2dec(unsigned ch) { unsigned result = ch; if ((ch > 127) && (ch != UCS_REPL)) { switch (ch) { MY_UCS(0x25ae, 0); /* black vertical rectangle */ MY_UCS(0x25c6, 1); /* black diamond */ MY_UCS(0x2592, 2); /* medium shade */ MY_UCS(0x2409, 3); /* symbol for horizontal tabulation */ MY_UCS(0x240c, 4); /* symbol for form feed */ MY_UCS(0x240d, 5); /* symbol for carriage return */ MY_UCS(0x240a, 6); /* symbol for line feed */ MY_UCS(0x00b0, 7); /* degree sign */ MY_UCS(0x00b1, 8); /* plus-minus sign */ MY_UCS(0x2424, 9); /* symbol for newline */ MY_UCS(0x240b, 10); /* symbol for vertical tabulation */ MY_UCS(0x2518, 11); /* box drawings light up and left */ MY_UCS(0x2510, 12); /* box drawings light down and left */ MY_UCS(0x250c, 13); /* box drawings light down and right */ MY_UCS(0x2514, 14); /* box drawings light up and right */ MY_UCS(0x253c, 15); /* box drawings light vertical and horizontal */ MY_UCS(0x23ba, 16); /* box drawings scan 1 */ MY_UCS(0x23bb, 17); /* box drawings scan 3 */ MY_UCS(0x2500, 18); /* box drawings light horizontal */ MY_UCS(0x23bc, 19); /* box drawings scan 7 */ MY_UCS(0x23bd, 20); /* box drawings scan 9 */ MY_UCS(0x251c, 21); /* box drawings light vertical and right */ MY_UCS(0x2524, 22); /* box drawings light vertical and left */ MY_UCS(0x2534, 23); /* box drawings light up and horizontal */ MY_UCS(0x252c, 24); /* box drawings light down and horizontal */ MY_UCS(0x2502, 25); /* box drawings light vertical */ MY_UCS(0x2264, 26); /* less-than or equal to */ MY_UCS(0x2265, 27); /* greater-than or equal to */ MY_UCS(0x03c0, 28); /* greek small letter pi */ MY_UCS(0x2260, 29); /* not equal to */ MY_UCS(0x00a3, 30); /* pound sign */ MY_UCS(0x00b7, 31); /* middle dot */ } } return result; } #undef MY_UCS #define MY_UCS(ucs,dec) case dec: result = ucs; break unsigned dec2ucs(unsigned ch) { unsigned result = ch; if (xtermIsDecGraphic(ch)) { switch (ch) { MY_UCS(0x25ae, 0); /* black vertical rectangle */ MY_UCS(0x25c6, 1); /* black diamond */ MY_UCS(0x2592, 2); /* medium shade */ MY_UCS(0x2409, 3); /* symbol for horizontal tabulation */ MY_UCS(0x240c, 4); /* symbol for form feed */ MY_UCS(0x240d, 5); /* symbol for carriage return */ MY_UCS(0x240a, 6); /* symbol for line feed */ MY_UCS(0x00b0, 7); /* degree sign */ MY_UCS(0x00b1, 8); /* plus-minus sign */ MY_UCS(0x2424, 9); /* symbol for newline */ MY_UCS(0x240b, 10); /* symbol for vertical tabulation */ MY_UCS(0x2518, 11); /* box drawings light up and left */ MY_UCS(0x2510, 12); /* box drawings light down and left */ MY_UCS(0x250c, 13); /* box drawings light down and right */ MY_UCS(0x2514, 14); /* box drawings light up and right */ MY_UCS(0x253c, 15); /* box drawings light vertical and horizontal */ MY_UCS(0x23ba, 16); /* box drawings scan 1 */ MY_UCS(0x23bb, 17); /* box drawings scan 3 */ MY_UCS(0x2500, 18); /* box drawings light horizontal */ MY_UCS(0x23bc, 19); /* box drawings scan 7 */ MY_UCS(0x23bd, 20); /* box drawings scan 9 */ MY_UCS(0x251c, 21); /* box drawings light vertical and right */ MY_UCS(0x2524, 22); /* box drawings light vertical and left */ MY_UCS(0x2534, 23); /* box drawings light up and horizontal */ MY_UCS(0x252c, 24); /* box drawings light down and horizontal */ MY_UCS(0x2502, 25); /* box drawings light vertical */ MY_UCS(0x2264, 26); /* less-than or equal to */ MY_UCS(0x2265, 27); /* greater-than or equal to */ MY_UCS(0x03c0, 28); /* greek small letter pi */ MY_UCS(0x2260, 29); /* not equal to */ MY_UCS(0x00a3, 30); /* pound sign */ MY_UCS(0x00b7, 31); /* middle dot */ } } return result; } #endif /* OPT_WIDE_CHARS */ #if OPT_SHIFT_FONTS static int lookupOneFontSize(XtermWidget xw, int fontnum) { TScreen *screen = TScreenOf(xw); if (screen->menu_font_sizes[fontnum] == 0) { XTermFonts fnt; memset(&fnt, 0, sizeof(fnt)); screen->menu_font_sizes[fontnum] = -1; if (xtermOpenFont(xw, screen->MenuFontName(fontnum), &fnt, ((fontnum <= fontMenu_lastBuiltin) ? fwAlways : fwResource), True)) { if (fontnum <= fontMenu_lastBuiltin || strcmp(fnt.fn, DEFFONT)) { screen->menu_font_sizes[fontnum] = FontSize(fnt.fs); if (screen->menu_font_sizes[fontnum] <= 0) screen->menu_font_sizes[fontnum] = -1; } xtermCloseFont(xw, &fnt); } } return (screen->menu_font_sizes[fontnum] > 0); } /* * Cache the font-sizes so subsequent larger/smaller font actions will go fast. */ static void lookupFontSizes(XtermWidget xw) { int n; for (n = 0; n < NMENUFONTS; n++) { (void) lookupOneFontSize(xw, n); } } #if OPT_RENDERFONT static void fillInFaceSize(XtermWidget xw, int fontnum) { TScreen *screen = TScreenOf(xw); float value; double face_size = xw->misc.face_size[fontnum]; if (face_size <= 0.0) { #if OPT_SHIFT_FONTS /* * If the user is switching font-sizes, make it follow by * default the same ratios to the default as the fixed fonts * would, for easy comparison. There will be some differences * since the fixed fonts have a variety of height/width ratios, * but this is simpler than adding another resource value - and * as noted above, the data for the fixed fonts are available. */ (void) lookupOneFontSize(xw, 0); if (fontnum == fontMenu_default) { sscanf(DEFFACESIZE, "%f", &value); face_size = value; } else if (lookupOneFontSize(xw, fontnum) && (screen->menu_font_sizes[0] != screen->menu_font_sizes[fontnum])) { double ratio; long num = screen->menu_font_sizes[fontnum]; long den = screen->menu_font_sizes[0]; if (den <= 0) den = 1; ratio = dimSquareRoot((double) num / (double) den); face_size = (ratio * xw->misc.face_size[0]); TRACE(("scaled[%d] using %3ld/%ld = %.2f -> %f\n", fontnum, num, den, ratio, face_size)); } else #endif { #define LikeBitmap(s) (((s) / 78.0) * xw->misc.face_size[fontMenu_default]) switch (fontnum) { case fontMenu_font1: face_size = LikeBitmap(2.0); break; case fontMenu_font2: face_size = LikeBitmap(35.0); break; case fontMenu_font3: face_size = LikeBitmap(60.0); break; default: sscanf(DEFFACESIZE, "%f", &value); face_size = value; break; case fontMenu_font4: face_size = LikeBitmap(90.0); break; case fontMenu_font5: face_size = LikeBitmap(135.0); break; case fontMenu_font6: face_size = LikeBitmap(200.0); break; } TRACE(("builtin[%d] -> %f\n", fontnum, face_size)); } xw->misc.face_size[fontnum] = (float) face_size; } } /* no selection or escape */ #define NMENU_RENDERFONTS (fontMenu_lastBuiltin + 1) /* * Workaround for breakage in font-packages - check if all of the bitmap font * sizes are the same, and if we're using TrueType fonts. */ static Boolean useFaceSizes(XtermWidget xw) { Boolean result = False; int n; TRACE(("useFaceSizes {{\n")); if (UsingRenderFont(xw)) { Boolean nonzero = True; for (n = 0; n < NMENU_RENDERFONTS; ++n) { if (xw->misc.face_size[n] <= 0.0) { nonzero = False; break; } } if (!nonzero) { Boolean broken_fonts = True; TScreen *screen = TScreenOf(xw); long first; lookupFontSizes(xw); first = screen->menu_font_sizes[0]; for (n = 0; n < NMENUFONTS; n++) { if (screen->menu_font_sizes[n] > 0 && screen->menu_font_sizes[n] != first) { broken_fonts = False; break; } } if (broken_fonts) { TRACE(("bitmap fonts are broken - set faceSize resources\n")); for (n = 0; n < NMENUFONTS; n++) { fillInFaceSize(xw, n); } } } result = True; } TRACE(("...}}useFaceSizes %d\n", result)); return result; } #endif /* OPT_RENDERFONT */ /* * Find the index of a larger/smaller font (according to the sign of 'relative' * and its magnitude), starting from the 'old' index. */ int lookupRelativeFontSize(XtermWidget xw, int old, int relative) { TScreen *screen = TScreenOf(xw); int n, m = -1; TRACE(("lookupRelativeFontSize(old=%d, relative=%d)\n", old, relative)); if (!IsIcon(screen)) { #if OPT_RENDERFONT if (useFaceSizes(xw)) { TRACE(("...using FaceSize\n")); if (relative != 0) { for (n = 0; n < NMENU_RENDERFONTS; ++n) { fillInFaceSize(xw, n); if (xw->misc.face_size[n] > 0 && xw->misc.face_size[n] != xw->misc.face_size[old]) { int cmp_0 = ((xw->misc.face_size[n] > xw->misc.face_size[old]) ? relative : -relative); int cmp_m = ((m < 0) ? 1 : ((xw->misc.face_size[n] < xw->misc.face_size[m]) ? relative : -relative)); if (cmp_0 > 0 && cmp_m > 0) { m = n; } } } } } else #endif { TRACE(("...using bitmap areas\n")); lookupFontSizes(xw); if (relative != 0) { for (n = 0; n < NMENUFONTS; ++n) { if (screen->menu_font_sizes[n] > 0 && screen->menu_font_sizes[n] != screen->menu_font_sizes[old]) { int cmp_0 = ((screen->menu_font_sizes[n] > screen->menu_font_sizes[old]) ? relative : -relative); int cmp_m = ((m < 0) ? 1 : ((screen->menu_font_sizes[n] < screen->menu_font_sizes[m]) ? relative : -relative)); if (cmp_0 > 0 && cmp_m > 0) { m = n; } } } } } TRACE(("...new index %d\n", m)); if (m >= 0) { if (relative > 1) m = lookupRelativeFontSize(xw, m, relative - 1); else if (relative < -1) m = lookupRelativeFontSize(xw, m, relative + 1); } } return m; } /* ARGSUSED */ void HandleLargerFont(Widget w GCC_UNUSED, XEvent * event GCC_UNUSED, String * params GCC_UNUSED, Cardinal *param_count GCC_UNUSED) { XtermWidget xw; TRACE(("Handle larger-vt-font for %p\n", (void *) w)); if ((xw = getXtermWidget(w)) != 0) { if (xw->misc.shift_fonts) { TScreen *screen = TScreenOf(xw); int m; m = lookupRelativeFontSize(xw, screen->menu_font_number, 1); if (m >= 0) { SetVTFont(xw, m, True, NULL); } else { Bell(xw, XkbBI_MinorError, 0); } } } } /* ARGSUSED */ void HandleSmallerFont(Widget w GCC_UNUSED, XEvent * event GCC_UNUSED, String * params GCC_UNUSED, Cardinal *param_count GCC_UNUSED) { XtermWidget xw; TRACE(("Handle smaller-vt-font for %p\n", (void *) w)); if ((xw = getXtermWidget(w)) != 0) { if (xw->misc.shift_fonts) { TScreen *screen = TScreenOf(xw); int m; m = lookupRelativeFontSize(xw, screen->menu_font_number, -1); if (m >= 0) { SetVTFont(xw, m, True, NULL); } else { Bell(xw, XkbBI_MinorError, 0); } } } } #endif int xtermGetFont(const char *param) { int fontnum; switch (param[0]) { case 'd': case 'D': case '0': fontnum = fontMenu_default; break; case '1': fontnum = fontMenu_font1; break; case '2': fontnum = fontMenu_font2; break; case '3': fontnum = fontMenu_font3; break; case '4': fontnum = fontMenu_font4; break; case '5': fontnum = fontMenu_font5; break; case '6': fontnum = fontMenu_font6; break; case 'e': case 'E': fontnum = fontMenu_fontescape; break; case 's': case 'S': fontnum = fontMenu_fontsel; break; default: fontnum = -1; break; } return fontnum; } /* ARGSUSED */ void HandleSetFont(Widget w GCC_UNUSED, XEvent * event GCC_UNUSED, String * params, Cardinal *param_count) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { int fontnum; VTFontNames fonts; memset(&fonts, 0, sizeof(fonts)); if (*param_count == 0) { fontnum = fontMenu_default; } else { Cardinal maxparams = 1; /* total number of params allowed */ int result = xtermGetFont(params[0]); switch (result) { case fontMenu_default: /* FALLTHRU */ case fontMenu_font1: /* FALLTHRU */ case fontMenu_font2: /* FALLTHRU */ case fontMenu_font3: /* FALLTHRU */ case fontMenu_font4: /* FALLTHRU */ case fontMenu_font5: /* FALLTHRU */ case fontMenu_font6: /* FALLTHRU */ break; case fontMenu_fontescape: #if OPT_WIDE_CHARS maxparams = 5; #else maxparams = 3; #endif break; case fontMenu_fontsel: maxparams = 2; break; default: Bell(xw, XkbBI_MinorError, 0); return; } fontnum = result; if (*param_count > maxparams) { /* see if extra args given */ Bell(xw, XkbBI_MinorError, 0); return; } switch (*param_count) { /* assign 'em */ #if OPT_WIDE_CHARS case 5: fonts.f_wb = params[4]; /* FALLTHRU */ case 4: fonts.f_w = params[3]; /* FALLTHRU */ #endif case 3: fonts.f_b = params[2]; /* FALLTHRU */ case 2: fonts.f_n = params[1]; break; } } SetVTFont(xw, fontnum, True, &fonts); } } void SetVTFont(XtermWidget xw, int which, Bool doresize, const VTFontNames * fonts) { TScreen *screen = TScreenOf(xw); TRACE(("SetVTFont(which=%d, f_n=%s, f_b=%s)\n", which, (fonts && fonts->f_n) ? fonts->f_n : "", (fonts && fonts->f_b) ? fonts->f_b : "")); if (IsIcon(screen)) { Bell(xw, XkbBI_MinorError, 0); } else if (which >= 0 && which < NMENUFONTS) { VTFontNames myfonts; memset(&myfonts, 0, sizeof(myfonts)); if (fonts != 0) myfonts = *fonts; if (which == fontMenu_fontsel) { /* go get the selection */ FindFontSelection(xw, myfonts.f_n, False); } else { int oldFont = screen->menu_font_number; #define USE_CACHED(field, name) \ if (myfonts.field == 0) { \ myfonts.field = x_strdup(screen->menu_font_names[which][name]); \ TRACE(("set myfonts." #field " from menu_font_names[%d][" #name "] %s\n", \ which, NonNull(myfonts.field))); \ } else { \ TRACE(("set myfonts." #field " reused\n")); \ } #define SAVE_FNAME(field, name) \ if (myfonts.field != 0) { \ if (screen->menu_font_names[which][name] == 0 \ || strcmp(screen->menu_font_names[which][name], myfonts.field)) { \ TRACE(("updating menu_font_names[%d][" #name "] to %s\n", \ which, myfonts.field)); \ screen->menu_font_names[which][name] = x_strdup(myfonts.field); \ } \ } USE_CACHED(f_n, fNorm); USE_CACHED(f_b, fBold); #if OPT_WIDE_CHARS USE_CACHED(f_w, fWide); USE_CACHED(f_wb, fWBold); #endif if (xtermLoadFont(xw, &myfonts, doresize, which)) { /* * If successful, save the data so that a subsequent query via * OSC-50 will return the expected values. */ SAVE_FNAME(f_n, fNorm); SAVE_FNAME(f_b, fBold); #if OPT_WIDE_CHARS SAVE_FNAME(f_w, fWide); SAVE_FNAME(f_wb, fWBold); #endif } else { xtermLoadFont(xw, xtermFontName(screen->MenuFontName(oldFont)), doresize, oldFont); Bell(xw, XkbBI_MinorError, 0); } } } else { Bell(xw, XkbBI_MinorError, 0); } return; }