Initial Xft support for st. More to follow.

diff --git a/config.def.h b/config.def.h
index 7746eaf..5cb1fd2 100644 (file)
--- a/config.def.h
+++ b/config.def.h
@@ -1,9 +1,8 @@
 
-#define FONT "-*-*-medium-r-*-*-*-120-75-75-*-70-*-*"
-#define BOLDFONT "-*-*-bold-r-*-*-*-120-75-75-*-70-*-*"
-/* If italic is not available, fall back to bold. */
-#define ITALICFONT "-*-*-medium-o-*-*-*-120-75-75-*-70-*-*," BOLDFONT
-#define ITALICBOLDFONT "-*-*-bold-o-*-*-*-120-75-75-*-70-*-*," BOLDFONT
+#define FONT "Bitstream Vera Sans Mono:pixelsize=12:antialias=false:autohint=true"
+#define BOLDFONT FONT ":weight=bold"
+#define ITALICFONT FONT ":slant=italic,oblique"
+#define ITALICBOLDFONT BOLDFONT ":slant=italic,oblique"
 
 /* Space in pixels around the terminal buffer */
 #define BORDER 2

diff --git a/config.mk b/config.mk
index 4f273cd..f57afa2 100644 (file)
--- a/config.mk
+++ b/config.mk
@@ -11,8 +11,8 @@ X11INC = /usr/X11R6/include
 X11LIB = /usr/X11R6/lib
 
 # includes and libs
-INCS = -I. -I/usr/include -I${X11INC}
-LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 -lutil -lXext
+INCS = -I. -I/usr/include -I${X11INC} -I/usr/include/freetype2
+LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 -lutil -lXext -lXft
 
 # flags
 CPPFLAGS = -DVERSION=\"${VERSION}\"

diff --git a/st.c b/st.c
index 89c59b4..f7fecf8 100644 (file)
--- a/st.c
+++ b/st.c
@@ -25,6 +25,9 @@
 #include <X11/cursorfont.h>
 #include <X11/keysym.h>
 #include <X11/extensions/Xdbe.h>
+#include <X11/Xft/Xft.h>
+#define Glyph Glyph_
+#define Font Font_
 
 #if   defined(__linux)
  #include <pty.h>
@@ -195,6 +198,8 @@ typedef struct {
        Atom xembed;
        XIM xim;
        XIC xic;
+       XftDraw *xft_draw;
+       Visual *vis;
        int scr;
        Bool isfixed; /* is fixed geometry? */
        int fx, fy, fw, fh; /* fixed geometry */
@@ -212,7 +217,6 @@ typedef struct {
        char s[ESC_BUF_SIZ];
 } Key;
 
-
 /* TODO: use better name for vars... */
 typedef struct {
        int mode;
@@ -228,17 +232,22 @@ typedef struct {
 
 #include "config.h"
 
+/* Font structure */
+typedef struct {
+       int ascent;
+       int descent;
+       short lbearing;
+       short rbearing;
+       XFontSet set;
+       XftFont* xft_set;
+} Font;
+
 /* Drawing Context */
 typedef struct {
        ulong col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
+       XftColor xft_col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
        GC gc;
-       struct {
-               int ascent;
-               int descent;
-               short lbearing;
-               short rbearing;
-               XFontSet set;
-       } font, bfont, ifont, ibfont;
+       Font font, bfont, ifont, ibfont;
 } DC;
 
 static void die(const char*, ...);
@@ -1840,47 +1849,49 @@ void
 xresize(int col, int row) {
        xw.tw = MAX(1, 2*BORDER + col * xw.cw);
        xw.th = MAX(1, 2*BORDER + row * xw.ch);
+
+       XftDrawChange(xw.xft_draw, xw.buf);
 }
 
 void
 xloadcols(void) {
        int i, r, g, b;
-       XColor color;
+       XRenderColor xft_color = { .alpha = 0 };
        ulong white = WhitePixel(xw.dpy, xw.scr);
 
        /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
        for(i = 0; i < LEN(colorname); i++) {
                if(!colorname[i])
                        continue;
-               if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
+               if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.xft_col[i])) {
                        dc.col[i] = white;
                        fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
                } else
-                       dc.col[i] = color.pixel;
+                       dc.col[i] = dc.xft_col[i].pixel;
        }
 
        /* load colors [16-255] ; same colors as xterm */
        for(i = 16, r = 0; r < 6; r++)
                for(g = 0; g < 6; g++)
                        for(b = 0; b < 6; b++) {
-                               color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
-                               color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
-                               color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
-                               if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
+                               xft_color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
+                               xft_color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
+                               xft_color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
+                               if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
                                        dc.col[i] = white;
                                        fprintf(stderr, "Could not allocate color %d\n", i);
                                } else
-                                       dc.col[i] = color.pixel;
+                                       dc.col[i] = dc.xft_col[i].pixel;
                                i++;
                        }
 
        for(r = 0; r < 24; r++, i++) {
-               color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
-               if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
+               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.col[i] = white;
                        fprintf(stderr, "Could not allocate color %d\n", i);
                } else
-                       dc.col[i] = color.pixel;
+                       dc.col[i] = dc.xft_col[i].pixel;
        }
 }
 
@@ -1917,58 +1928,25 @@ xhints(void) {
        XFree(sizeh);
 }
 
-XFontSet
-xinitfont(char *fontstr) {
-       XFontSet set;
-       char *def, **missing;
-       int n;
-
-       missing = NULL;
-       set = XCreateFontSet(xw.dpy, fontstr, &missing, &n, &def);
-       if(missing) {
-               while(n--)
-                       fprintf(stderr, "st: missing fontset: %s\n", missing[n]);
-               XFreeStringList(missing);
-       }
-       return set;
-}
-
 void
-xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing) {
-       XFontStruct **xfonts;
-       char **font_names;
-       int i, n;
+xinitfont(Font *f, char *fontstr) {
+       f->xft_set = XftFontOpenName(xw.dpy, xw.scr, fontstr);
 
-       *ascent = *descent = *lbearing = *rbearing = 0;
-       n = XFontsOfFontSet(set, &xfonts, &font_names);
-       for(i = 0; i < n; i++) {
-               *ascent = MAX(*ascent, (*xfonts)->ascent);
-               *descent = MAX(*descent, (*xfonts)->descent);
-               *lbearing = MAX(*lbearing, (*xfonts)->min_bounds.lbearing);
-               *rbearing = MAX(*rbearing, (*xfonts)->max_bounds.rbearing);
-               xfonts++;
-       }
+       if(!f->xft_set)
+               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;
 }
 
 void
 initfonts(char *fontstr, char *bfontstr, char *ifontstr, char *ibfontstr) {
-       if((dc.font.set = xinitfont(fontstr)) == NULL)
-               die("Can't load font %s\n", fontstr);
-       if((dc.bfont.set = xinitfont(bfontstr)) == NULL)
-               die("Can't load bfont %s\n", bfontstr);
-       if((dc.ifont.set = xinitfont(ifontstr)) == NULL)
-               die("Can't load ifont %s\n", ifontstr);
-       if((dc.ibfont.set = xinitfont(ibfontstr)) == NULL)
-               die("Can't load ibfont %s\n", ibfontstr);
-
-       xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
-           &dc.font.lbearing, &dc.font.rbearing);
-       xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
-           &dc.bfont.lbearing, &dc.bfont.rbearing);
-       xgetfontinfo(dc.ifont.set, &dc.ifont.ascent, &dc.ifont.descent,
-           &dc.ifont.lbearing, &dc.ifont.rbearing);
-       xgetfontinfo(dc.ibfont.set, &dc.ibfont.ascent, &dc.ibfont.descent,
-           &dc.ibfont.lbearing, &dc.ibfont.rbearing);
+       xinitfont(&dc.font, fontstr);
+       xinitfont(&dc.bfont, bfontstr);
+       xinitfont(&dc.ifont, ifontstr);
+       xinitfont(&dc.ibfont, ibfontstr);
 }
 
 void
@@ -1981,6 +1959,7 @@ xinit(void) {
        if(!(xw.dpy = XOpenDisplay(NULL)))
                die("Can't open display\n");
        xw.scr = XDefaultScreen(xw.dpy);
+       xw.vis = XDefaultVisual(xw.dpy, xw.scr);
 
        /* font */
        initfonts(FONT, BOLDFONT, ITALICFONT, ITALICBOLDFONT);
@@ -2023,14 +2002,19 @@ xinit(void) {
        parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
        xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
                        xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
-                       XDefaultVisual(xw.dpy, xw.scr),
+                       xw.vis,
                        CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
                        | CWColormap,
                        &attrs);
+
+       /* double buffering */
        if(!XdbeQueryExtension(xw.dpy, &major, &minor))
                die("Xdbe extension is not present\n");
        xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
 
+       /* Xft rendering context */
+       xw.xft_draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
+
        /* input methods */
        xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
        xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
@@ -2058,7 +2042,8 @@ 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;
-       XFontSet fontset = dc.font.set;
+       Font *font = &dc.font;
+       XGlyphInfo extents;
        int i;
 
        /* only switch default fg/bg if term is in RV mode */
@@ -2074,13 +2059,13 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
 
        if(base.mode & ATTR_BOLD) {
                fg += 8;
-               fontset = dc.bfont.set;
+               font = &dc.bfont;
        }
 
        if(base.mode & ATTR_ITALIC)
-               fontset = dc.ifont.set;
+               font = &dc.ifont;
        if(base.mode & (ATTR_ITALIC|ATTR_ITALIC))
-               fontset = dc.ibfont.set;
+               font = &dc.ibfont;
 
        XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
        XSetForeground(xw.dpy, dc.gc, dc.col[fg]);
@@ -2095,7 +2080,10 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                }
        }
 
-       XmbDrawImageString(xw.dpy, xw.buf, fontset, dc.gc, winx, winy, s, bytelen);
+       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);
 
        if(base.mode & ATTR_UNDERLINE)
                XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);