# st

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    commit 2752018e27420947a034d50f1ce165bbb76ae1a8
    parent 0d88f1ef75c2fe9403a72c80d6fa8ed199ec474f
    Author: Christoph Lohmann <20h@r-36.net>
    Date:   Thu,  4 Oct 2012 22:59:45 +0200

    This adds the fontcache dependency to try something out. Additionally the

    invert mode now works as expected. In the config.def.h autohint is set to
    false, so the fonts are drawn correctly, without any overlapping.
    Diffstat:
    Mconfig.def.h | 2+-
    Mconfig.mk | 2+-
    Mst.c | 96+++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------------

    3 files changed, 69 insertions(+), 31 deletions(-)
    diff --git a/config.def.h b/config.def.h
    @@ -1,5 +1,5 @@

    -#define FONT "Liberation Mono:pixelsize=12:antialias=true:autohint=true"
    +#define FONT "Liberation Mono:pixelsize=12:antialias=true:autohint=false"

     /* Space in pixels around the terminal buffer */
     #define BORDER 2
    diff --git a/config.mk b/config.mk
    @@ -12,7 +12,7 @@ X11LIB = /usr/X11R6/lib

     # includes and libs
     INCS = -I. -I/usr/include -I${X11INC} -I/usr/include/freetype2
    -LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 -lutil -lXext -lXft
    +LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 -lutil -lXext -lXft -lfontconfig

     # flags
     CPPFLAGS = -DVERSION=\"${VERSION}\"
    diff --git a/st.c b/st.c
    @@ -26,6 +26,7 @@
     #include <X11/keysym.h>
     #include <X11/extensions/Xdbe.h>
     #include <X11/Xft/Xft.h>
    +#include <fontconfig/fontconfig.h>
     #define Glyph Glyph_
     #define Font Font_

    @@ -235,6 +236,8 @@ typedef struct {

     /* Font structure */
     typedef struct {
    +	int height;
    +	int width;
     	int ascent;
     	int descent;
     	short lbearing;
    @@ -1345,7 +1348,7 @@ tsetmode(bool priv, bool set, int *args, int narg) {
     			case 1: /* DECCKM -- Cursor key */
     				MODBIT(term.mode, set, MODE_APPKEYPAD);
     				break;
    -			case 5: /* DECSCNM -- Reverve video */
    +			case 5: /* DECSCNM -- Reverse video */
     				mode = term.mode;
     				MODBIT(term.mode, set, MODE_REVERSE);
     				if(mode != term.mode)
    @@ -1965,8 +1968,8 @@ xloadcols(void) {
     	}

     	/* load colors [16-255] ; same colors as xterm */
    -	for(i = 16, r = 0; r < 6; r++)
    -		for(g = 0; g < 6; g++)
    +	for(i = 16, r = 0; r < 6; r++) {
    +		for(g = 0; g < 6; g++) {
     			for(b = 0; b < 6; b++) {
     				xft_color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
     				xft_color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
    @@ -1976,12 +1979,13 @@ xloadcols(void) {
     				}
     				i++;
     			}
    +		}
    +	}

     	for(r = 0; r < 24; r++, i++) {
     		xft_color.red = xft_color.green = xft_color.blue = 0x0808 + 0x0a0a * r;
     		if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
    -			dc.xft_col[i] = dc.xft_col[256];
    -			fprintf(stderr, "Could not allocate color %d\n", i);
    +			die("Could not allocate color %d\n", i);
     		}
     	}
     }
    @@ -2045,15 +2049,29 @@ xhints(void) {

     void
     xinitfont(Font *f, char *fontstr) {
    -	f->xft_set = XftFontOpenName(xw.dpy, xw.scr, fontstr);
    -
    -	if(!f->xft_set)
    +	FcPattern *pattern, *match;
    +	FcResult result;
    +
    +	pattern = FcNameParse((FcChar8 *)fontstr);
    +	if(!pattern)
    +		die("st: can't open font %s\n", fontstr);
    +
    +	match = XftFontMatch(xw.dpy, xw.scr, pattern, &result);
    +	FcPatternDestroy(pattern);
    +	if(!match)
    +		die("st: can't open font %s\n", fontstr);
    +	if(!(f->xft_set = XftFontOpenPattern(xw.dpy, match))) {
    +		FcPatternDestroy(match);
     		die("st: can't open font %s.\n", fontstr);
    +	}

     	f->ascent = f->xft_set->ascent;
     	f->descent = f->xft_set->descent;
     	f->lbearing = 0;
     	f->rbearing = f->xft_set->max_advance_width;
    +
    +	f->height = f->xft_set->height;
    +	f->width = f->lbearing + f->rbearing;
     }

     void
    @@ -2061,6 +2079,8 @@ initfonts(char *fontstr) {
     	char *fstr;

     	xinitfont(&dc.font, fontstr);
    +	xw.cw = dc.font.width;
    +	xw.ch = dc.font.height;

     	fstr = smstrcat(fontstr, ":weight=bold", NULL);
     	xinitfont(&dc.bfont, fstr);
    @@ -2090,10 +2110,6 @@ xinit(void) {
     	/* font */
     	initfonts((opt_font != NULL)? opt_font : FONT);

    -	/* XXX: Assuming same size for bold font */
    -	xw.cw = dc.font.rbearing - dc.font.lbearing;
    -	xw.ch = dc.font.ascent + dc.font.descent;
    -
     	/* colors */
     	xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
     	xloadcols();
    @@ -2166,37 +2182,59 @@ xinit(void) {

     void
     xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
    -	int fg = base.fg, bg = base.bg, temp;
    -	int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
    +	int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch,
    +	    width = charlen*xw.cw;
     	Font *font = &dc.font;
     	XGlyphInfo extents;
    -
    -	/* only switch default fg/bg if term is in RV mode */
    -	if(IS_SET(MODE_REVERSE)) {
    -		if(fg == DefaultFG)
    -			fg = DefaultBG;
    -		if(bg == DefaultBG)
    -			bg = DefaultFG;
    -	}
    +	XftColor *fg = &dc.xft_col[base.fg], *bg = &dc.xft_col[base.bg],
    +		 *temp, revfg, revbg;
    +	XRenderColor colfg, colbg;

     	if(base.mode & ATTR_REVERSE)
     		temp = fg, fg = bg, bg = temp;
    -
    -	if(base.mode & ATTR_BOLD)
    +	if(base.mode & ATTR_BOLD) {
    +		fg = &dc.xft_col[base.fg + 8];
     		font = &dc.bfont;
    -
    +	}
     	if(base.mode & ATTR_ITALIC)
     		font = &dc.ifont;
     	if(base.mode & (ATTR_ITALIC|ATTR_ITALIC))
     		font = &dc.ibfont;

    -	XftTextExtentsUtf8(xw.dpy, font->xft_set, (FcChar8 *)s, bytelen, &extents);
    +	if(IS_SET(MODE_REVERSE)) {
    +		if(fg == &dc.xft_col[DefaultFG]) {
    +			fg = &dc.xft_col[DefaultBG];
    +		} else {
    +			colfg.red = ~fg->color.red;
    +			colfg.green = ~fg->color.green;
    +			colfg.blue = ~fg->color.blue;
    +			colfg.alpha = fg->color.alpha;
    +			XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
    +			fg = &revfg;
    +		}
    +
    +		if(bg == &dc.xft_col[DefaultBG]) {
    +			bg = &dc.xft_col[DefaultFG];
    +		} else {
    +			colbg.red = ~bg->color.red;
    +			colbg.green = ~bg->color.green;
    +			colbg.blue = ~bg->color.blue;
    +			colbg.alpha = bg->color.alpha;
    +			XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &revbg);
    +			bg = &revbg;
    +		}
    +	}
    +
    +	XftTextExtentsUtf8(xw.dpy, font->xft_set, (FcChar8 *)s, bytelen,
    +			&extents);
     	width = extents.xOff;
    -	XftDrawRect(xw.xft_draw, &dc.xft_col[bg], winx, winy - font->ascent, width, xw.ch);
    -	XftDrawStringUtf8(xw.xft_draw, &dc.xft_col[fg], font->xft_set, winx, winy, (FcChar8 *)s, bytelen);
    +
    +	XftDrawRect(xw.xft_draw, bg, winx, winy, width, xw.ch);
    +	XftDrawStringUtf8(xw.xft_draw, fg, font->xft_set, winx,
    +			winy + font->ascent, (FcChar8 *)s, bytelen);

     	if(base.mode & ATTR_UNDERLINE) {
    -		XftDrawRect(xw.xft_draw, &dc.xft_col[fg], winx, winy+1,
    +		XftDrawRect(xw.xft_draw, fg, winx, winy+1,
     				width, 1);
     	}
     }