Initial Xft support for st. More to follow. - st - Simple Terminal
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---
(DIR) commit 2b3c1219c863d9faa30ae58e5bf56d58ada0247d
(DIR) parent 1ba5f4172f0bf8b5001ffcfc69118b62bf0fb78a
(HTM) Author: Christoph Lohmann <20h@r-36.net>
Date: Mon, 24 Sep 2012 10:20:45 +0200
Initial Xft support for st. More to follow.
Diffstat:
config.def.h | 9 ++++-----
config.mk | 4 ++--
st.c | 130 ++++++++++++++-----------------
3 files changed, 65 insertions(+), 78 deletions(-)
---
(DIR) diff --git 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
(DIR) diff --git 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}\"
(DIR) diff --git 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... */
ttypedef struct {
int mode;
@@ -228,17 +232,22 @@ typedef struct {
#include "config.h"
+/* Font structure */
+ttypedef struct {
+ int ascent;
+ int descent;
+ short lbearing;
+ short rbearing;
+ XFontSet set;
+ XftFont* xft_set;
+} Font;
+
/* Drawing Context */
ttypedef 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);