--- rxvt-unicode/src/rxvtfont.C 2006/01/25 00:42:21 1.85 +++ rxvt-unicode/src/rxvtfont.C 2006/08/27 10:10:25 1.103 @@ -1,4 +1,4 @@ -/*--------------------------------*-C-*---------------------------------* +/*----------------------------------------------------------------------* * File: rxvtfont.C *----------------------------------------------------------------------* * Copyright (c) 2003-2006 Marc Lehmann @@ -26,10 +26,17 @@ #include "rxvtfont.h" #include -#include + #include -#define MAX_OVERLAP (4 + 1) // max. character width in 4ths of the base width +#define MAX_OVERLAP_ROMAN (8 + 2) // max. character width in 8ths of the base width +#define MAX_OVERLAP_ITALIC (8 + 3) // max. overlap for italic fonts + +#define OVERLAP_OK(w,wcw,prop) ((w) <= ( \ + (prop)->slant >= rxvt_fontprop::italic \ + ? ((prop)->width * (wcw) * MAX_OVERLAP_ITALIC + 7) >> 3 \ + : ((prop)->width * (wcw) * MAX_OVERLAP_ROMAN + 7) >> 3 \ + )) const struct rxvt_fallback_font { codeset cs; @@ -59,15 +66,15 @@ { CS_ISO8859_16, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-16" }, # if XFT - { CS_KOI8_U, "xft::spacing=100:lang=ru:antialias=false" }, - - { CS_ISO8859_5, "xft::spacing=100:lang=ru:antialias=false" }, - { CS_ISO8859_6, "xft::spacing=100:lang=ar:antialias=false" }, - { CS_ISO8859_7, "xft::spacing=100:lang=el:antialias=false" }, - { CS_ISO8859_8, "xft::spacing=100:lang=he:antialias=false" }, - { CS_ISO8859_9, "xft::spacing=100:lang=tr:antialias=false" }, - { CS_ISO8859_10, "xft::spacing=100:lang=se:antialias=false" }, - { CS_ISO8859_11, "xft::spacing=100:lang=th:antialias=false" }, + { CS_KOI8_U, "xft::lang=ru" }, + + { CS_ISO8859_5, "xft::lang=ru" }, + { CS_ISO8859_6, "xft::lang=ar" }, + { CS_ISO8859_7, "xft::lang=el" }, + { CS_ISO8859_8, "xft::lang=he" }, + { CS_ISO8859_9, "xft::lang=tr" }, + { CS_ISO8859_10, "xft::lang=se" }, + { CS_ISO8859_11, "xft::lang=th" }, # endif #endif @@ -78,7 +85,7 @@ { CS_JIS0208_1990_0, "xft:Kochi Gothic:antialias=false" }, { CS_JIS0208_1990_0, "xft:Sazanami Mincho:antialias=false" }, { CS_JIS0208_1990_0, "xft:Mincho:antialias=false" }, - { CS_JIS0208_1990_0, "xft::lang=ja:spacing=100:antialias=false" }, + { CS_JIS0208_1990_0, "xft::lang=ja:antialias=false" }, # endif { CS_JIS0201_1976_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, { CS_JIS0208_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0208*-0" }, @@ -92,12 +99,12 @@ # if XFT { CS_GBK_0, "xft:AR PL KaitiM GB" }, { CS_GBK_0, "xft:AR PL SungtiL GB" }, - { CS_GBK_0, "xft::spacing=100:lang=zh" }, + { CS_GBK_0, "xft::lang=zh" }, { CS_BIG5_EXT, "xft:AR PL Mingti2L Big5" }, { CS_BIG5_EXT, "xft:AR PL KaitiM Big5" }, { CS_GB2312_1980_0, "xft:AR PL KaitiM GB" }, { CS_GB2312_1980_0, "xft:AR PL SungtiL GB" }, - { CS_GB2312_1980_0, "xft::spacing=100:lang=zh" }, + { CS_GB2312_1980_0, "xft::lang=zh" }, # endif { CS_GBK_0, "-*-*-*-*-*-*-*-*-*-*-c-*-gbk*-0" }, { CS_BIG5, "-*-*-*-*-*-*-*-*-*-*-c-*-big5-0" }, @@ -120,25 +127,26 @@ { CS_KSC5601_1987_0, "-*-*-*-*-*-*-*-*-*-*-c-*-ksc5601*" }, # if XFT { CS_KSC5601_1987_0, "xft:Baekmuk Gulim:antialias=false" }, - { CS_KSC5601_1987_0, "xft::spacing=100:lang=ko:antialias=false" }, + { CS_KSC5601_1987_0, "xft::lang=ko:antialias=false" }, # endif #endif - // generic font fallback { CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" }, - { CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, - { CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-c-*-iso10646-1" }, - { CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, + //{ CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, // this gem of a font has actual dotted circles within the combining character glyphs. #if XFT { CS_UNICODE, "xft:Bitstream Vera Sans Mono:antialias=false:autohint=true" }, { CS_UNICODE, "xft:Courier New:antialias=false:autohint=true" }, { CS_UNICODE, "xft:Andale Mono:antialias=false:autohint=false" }, { CS_UNICODE, "xft:Arial Unicode MS:antialias=false:autohint=false" }, - // FreeMono is usually uglier than x fonts, so try last only. + // FreeMono is usually uglier than x fonts, so try after the others { CS_UNICODE, "xft:FreeMono:autohint=true" }, #endif + // generic font fallback, put this last, as many iso10646 fonts have extents + // specified for all glyphs in the range they cover, but most are simply empty + //{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-c-*-iso10646-1" }, + //{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, { CS_UNKNOWN, 0 } }; @@ -152,29 +160,11 @@ #define NUM_EXTENT_TEST_CHARS (sizeof (extent_test_chars) / sizeof (extent_test_chars[0])) -#define dTermDisplay Display *disp = term->display->display +#define dTermDisplay Display *disp = term->dpy #define dTermGC GC gc = term->gc ///////////////////////////////////////////////////////////////////////////// -#if XFT -rxvt_drawable::~rxvt_drawable () -{ - if (xftdrawable) - XftDrawDestroy (xftdrawable); -} - -rxvt_drawable::operator XftDraw *() -{ - if (!xftdrawable) - xftdrawable = XftDrawCreate (display->display, drawable, display->visual, display->cmap); - - return xftdrawable; -} -#endif - -///////////////////////////////////////////////////////////////////////////// - static const char * enc_char (const text_t *text, uint32_t len, codeset cs, bool &zero) { @@ -223,6 +213,11 @@ ///////////////////////////////////////////////////////////////////////////// +rxvt_font::rxvt_font () +: name(0), width(rxvt_fontprop::unset), height(rxvt_fontprop::unset) +{ +} + void rxvt_font::set_name (char *name) { @@ -239,9 +234,9 @@ dTermDisplay; dTermGC; - if (color == Color_bg) - XClearArea (disp, d, x, y, w, h, FALSE); - else if (color >= 0) + if (color < 0 || color == Color_bg) + XClearArea (disp, d, x, y, w, h, false); + else { #if XFT XftDrawRect (d, &term->pix_colors[color].c, x, y, w, h); @@ -252,6 +247,8 @@ } } +///////////////////////////////////////////////////////////////////////////// + #include "table/linedraw.h" struct rxvt_font_default : rxvt_font { @@ -275,7 +272,7 @@ return p; } - bool load (const rxvt_fontprop &prop) + bool load (const rxvt_fontprop &prop, bool force_prop) { width = 1; height = 1; ascent = 1; descent = 0; @@ -427,8 +424,9 @@ #if ENABLE_COMBINING else if (IS_COMPOSE (t) && (cc = rxvt_composite[t])) { + min_it (width, 2); // we only support wcwidth up to 2 + text_t chrs[2]; - width = min (2, width); chrs [1] = NOCHAR; *chrs = cc->c1; @@ -475,7 +473,7 @@ rxvt_fontprop properties (); - bool load (const rxvt_fontprop &prop); + bool load (const rxvt_fontprop &prop, bool force_prop); bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const; @@ -488,19 +486,19 @@ codeset cs; bool enc2b, encm; - char *get_property (XFontStruct *f, const char *property, const char *repl) const; + char *get_property (XFontStruct *f, Atom property, const char *repl) const; bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); bool set_properties (rxvt_fontprop &p, XFontStruct *f); bool set_properties (rxvt_fontprop &p, const char *name); }; char * -rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const +rxvt_font_x11::get_property (XFontStruct *f, Atom property, const char *repl) const { unsigned long value; - if (XGetFontProperty (f, XInternAtom (term->display->display, property, 0), &value)) - return XGetAtomName (term->display->display, value); + if (XGetFontProperty (f, property, &value)) + return XGetAtomName (term->dpy, value); else return rxvt_strdup (repl); } @@ -516,7 +514,9 @@ bool rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) { - p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2; + p.width = width != rxvt_fontprop::unset ? width + : avgwidth ? (avgwidth + 1) / 10 + : (height + 1) / 2; p.height = height; p.ascent = rxvt_fontprop::unset; p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; @@ -531,18 +531,18 @@ unsigned long height; #if 0 - if (!XGetFontProperty (f, XInternAtom (term->display->display, "PIXEL_SIZE", 0), &height)) + if (!XGetFontProperty (f, XInternAtom (term->dpy, "PIXEL_SIZE", 0), &height)) return false; #else height = f->ascent + f->descent; #endif unsigned long avgwidth; - if (!XGetFontProperty (f, XInternAtom (term->display->display, "AVERAGE_WIDTH", 0), &avgwidth)) + if (!XGetFontProperty (f, term->xa [XA_AVERAGE_WIDTH], &avgwidth)) avgwidth = 0; - char *weight = get_property (f, "WEIGHT_NAME", "medium"); - char *slant = get_property (f, "SLANT", "r"); + char *weight = get_property (f, term->xa [XA_WEIGHT_NAME], "medium"); + char *slant = get_property (f, term->xa [XA_SLANT], "r"); set_properties (p, height, weight, slant, avgwidth); @@ -629,7 +629,7 @@ } bool -rxvt_font_x11::load (const rxvt_fontprop &prop) +rxvt_font_x11::load (const rxvt_fontprop &prop, bool force_prop) { dTermDisplay; @@ -638,8 +638,7 @@ char field_str[64]; // enough for 128 bits // first morph the font if required - if (prop.weight != rxvt_fontprop::unset - || prop.slant != rxvt_fontprop::unset) + if (force_prop) { char fname[1024]; @@ -650,7 +649,7 @@ if (!f) return false; - char *new_name = get_property (f, "FONT", name); + char *new_name = get_property (f, XA_FONT, name); if (new_name) set_name (new_name); @@ -769,8 +768,8 @@ if (!f) return false; - char *registry = get_property (f, "CHARSET_REGISTRY", 0); - char *encoding = get_property (f, "CHARSET_ENCODING", 0); + char *registry = get_property (f, term->xa [XA_CHARSET_REGISTRY], 0); + char *encoding = get_property (f, term->xa [XA_CHARSET_ENCODING], 0); if (registry && encoding) { @@ -781,7 +780,7 @@ } else { - const char *charset = get_property (f, "FONT", 0); + const char *charset = get_property (f, XA_FONT, 0); if (!charset) charset = name; @@ -806,9 +805,7 @@ slow = false; #if 1 // only used for slow detection, TODO optimize - if (f->min_bounds.width == f->max_bounds.width) - width = f->min_bounds.width; - else if (f->per_char == NULL) + if (f->min_bounds.width == f->max_bounds.width || !f->per_char) width = f->max_bounds.width; else { @@ -834,9 +831,7 @@ for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; ) { - if (cs != CS_UNICODE - && *t > 0x100 - && FROM_UNICODE (cs, *t) == NOCHAR) + if (FROM_UNICODE (cs, *t) == NOCHAR) continue; // ignore characters we wouldn't use anyways @@ -850,9 +845,10 @@ int dir_ret, asc_ret, des_ret; XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g); - int wcw = wcwidth (*t); if (wcw > 0) g.width = (g.width + wcw - 1) / wcw; + int wcw = WCWIDTH (*t); + if (wcw > 0) g.width = (g.width + wcw - 1) / wcw; - if (width < g.width) width = g.width; + if (width < g.width) width = g.width; } if (cs == CS_UNKNOWN) @@ -879,7 +875,7 @@ { if (f) { - XFreeFont (term->display->display, f); + XFreeFont (term->dpy, f); f = 0; } } @@ -932,13 +928,13 @@ if (!prop || prop->width == rxvt_fontprop::unset) return true; - // check character against base font bounding box - int w = xcs->width; - int wcw = wcwidth (unicode); - if (wcw > 0) w = (w + wcw - 1) / wcw; + // check wether character overlaps previous/next character + int w = xcs->rbearing - xcs->lbearing; + int wcw = max (WCWIDTH (unicode), 1); - careful = w > prop->width; - if (careful && w > prop->width * MAX_OVERLAP >> 2) + careful = xcs->lbearing < 0 || xcs->rbearing > prop->width * wcw; + + if (careful && !OVERLAP_OK (w, wcw, prop)) return false; return true; @@ -1044,7 +1040,7 @@ rxvt_fontprop properties (); - bool load (const rxvt_fontprop &prop); + bool load (const rxvt_fontprop &prop, bool force_prop); void draw (rxvt_drawable &d, int x, int y, const text_t *text, int len, @@ -1061,7 +1057,7 @@ { if (f) { - XftFontClose (term->display->display, f); + XftFontClose (term->dpy, f); f = 0; } } @@ -1087,7 +1083,7 @@ } bool -rxvt_font_xft::load (const rxvt_fontprop &prop) +rxvt_font_xft::load (const rxvt_fontprop &prop, bool force_prop) { dTermDisplay; @@ -1106,11 +1102,11 @@ FcPatternAddInteger (p, FC_PIXEL_SIZE, prop.height); if (prop.weight != rxvt_fontprop::unset - && FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch) + && (force_prop || FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch)) FcPatternAddInteger (p, FC_WEIGHT, prop.weight); if (prop.slant != rxvt_fontprop::unset - && FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch) + && (force_prop || FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch)) FcPatternAddInteger (p, FC_SLANT, prop.slant); #if 0 // clipping unfortunately destroys our precious double-width-characters @@ -1178,7 +1174,7 @@ g.width -= g.x; - int wcw = wcwidth (ch); + int wcw = WCWIDTH (ch); if (wcw > 0) g.width = (g.width + wcw - 1) / wcw; if (width < g.width ) width = g.width; @@ -1238,7 +1234,7 @@ { careful = false; - if (!XftCharExists (term->display->display, f, unicode)) + if (!XftCharExists (term->dpy, f, unicode)) return false; if (!prop || prop->width == rxvt_fontprop::unset) @@ -1247,14 +1243,18 @@ // check character against base font bounding box FcChar32 ch = unicode; XGlyphInfo g; - XftTextExtents32 (term->display->display, f, &ch, 1, &g); + XftTextExtents32 (term->dpy, f, &ch, 1, &g); int w = g.width - g.x; - int wcw = wcwidth (unicode); - if (wcw > 0) w = (w + wcw - 1) / wcw; + int wcw = max (WCWIDTH (unicode), 1); + + careful = g.x > 0 || w > prop->width * wcw; - careful = w > prop->width; - if (careful && w > prop->width * MAX_OVERLAP >> 2) + if (careful && !OVERLAP_OK (w, wcw, prop)) + return false; + + // this weeds out _totally_ broken fonts, or glyphs + if (!OVERLAP_OK (g.xOff, wcw, prop)) return false; return true; @@ -1265,8 +1265,6 @@ const text_t *text, int len, int fg, int bg) { - clear_rect (d, x, y, term->fwidth * len, term->fheight, bg); - XGlyphInfo extents; XftGlyphSpec *enc = (XftGlyphSpec *)rxvt_temp_buf (len * sizeof (XftGlyphSpec)); XftGlyphSpec *ep = enc; @@ -1274,10 +1272,25 @@ dTermDisplay; dTermGC; + int w = term->fwidth * len; + int h = term->fheight; + + bool buffered = bg >= 0 // we don't use a transparent bg +#ifndef FORCE_UNBUFFERED_XFT +# if defined(XPM_BACKGROUND) || defined(TRANSPARENT) + || !term->am_transparent // we aren't transparent + || term->am_pixmap_trans // we have a pixmap +# endif +#endif + ; + // cut trailing spaces while (len && text [len - 1] == ' ') len--; + int x_ = buffered ? 0 : x; + int y_ = buffered ? 0 : y; + while (len) { int cwidth = term->fwidth; @@ -1292,17 +1305,67 @@ XftGlyphExtents (disp, f, &glyph, 1, &extents); ep->glyph = glyph; - ep->x = x + (cwidth - extents.xOff >> 1); - ep->y = y + ascent; + ep->x = x_ + (cwidth - extents.xOff >> 1); + ep->y = y_ + ascent; + + if (extents.xOff == 0) + ep->x = x_ + cwidth; + ep++; } - x += cwidth; + x_ += cwidth; } - if (ep != enc) - XftDrawGlyphSpec (d, &term->pix_colors[fg].c, f, enc, ep - enc); + if (buffered) + { + if (ep != enc) + { + rxvt_drawable &d2 = d.screen->scratch_drawable (w, h); + + if (0) + ; +#ifdef TRANSPARENT + else if (bg < 0 && term->am_pixmap_trans) + XCopyArea (disp, term->pixmap, d2, gc, + x + term->window_vt_x, y + term->window_vt_y, + w, h, 0, 0); +#endif +#ifdef XPM_BACKGROUND + else if (bg < 0 && term->bgPixmap.pixmap) + { + XGCValues gcv; + + gcv.fill_style = FillTiled; + gcv.tile = term->pixmap; + gcv.ts_x_origin = -x; + gcv.ts_y_origin = -y; + + GC gc2 = XCreateGC (disp, d2, + GCTile | GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle, + &gcv); + + XFillRectangle (disp, d2, gc2, 0, 0, w, h); + + XFreeGC (disp, gc2); + } +#endif + else + XftDrawRect (d2, &term->pix_colors[bg].c, 0, 0, w, h); + + XftDrawGlyphSpec (d2, &term->pix_colors[fg].c, f, enc, ep - enc); + XCopyArea (disp, d2, d, gc, 0, 0, w, h, x, y); + } + else + clear_rect (d, x, y, w, h, bg); + } + else + { + clear_rect (d, x, y, w, h, bg); + XftDrawGlyphSpec (d, &term->pix_colors[fg].c, f, enc, ep - enc); + } } + #endif ///////////////////////////////////////////////////////////////////////////// @@ -1323,6 +1386,7 @@ { prop.width = prop.height = prop.ascent = prop.weight = prop.slant = rxvt_fontprop::unset; + force_prop = false; for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) FONT_UNREF (*i); @@ -1444,7 +1508,7 @@ fonts[i]->loaded = true; - if (!fonts[i]->load (prop)) + if (!fonts[i]->load (prop, force_prop)) { fonts[i]->cs = CS_UNKNOWN; return false; @@ -1555,7 +1619,7 @@ //FcPatternAddBool (p, FC_ANTIALIAS, 1); XftResult result; - FcPattern *match = XftFontMatch (term->display->display, term->display->screen, p, &result); + FcPattern *match = XftFontMatch (term->dpy, term->display->screen, p, &result); FcPatternDestroy (p);