135 lines
3.3 KiB
C
135 lines
3.3 KiB
C
/* See LICENSE file for copyright and license details. */
|
|
#include <ctype.h>
|
|
#include <locale.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <strings.h>
|
|
#include <X11/Xlib.h>
|
|
#include "draw.h"
|
|
|
|
/* macros */
|
|
#define MIN(a, b) ((a) < (b) ? (a) : (b))
|
|
#define MAX(a, b) ((a) > (b) ? (a) : (b))
|
|
|
|
void
|
|
drawcleanup(void) {
|
|
if(dc.font.set)
|
|
XFreeFontSet(dpy, dc.font.set);
|
|
else
|
|
XFreeFont(dpy, dc.font.xfont);
|
|
XFreePixmap(dpy, dc.drawable);
|
|
XFreeGC(dpy, dc.gc);
|
|
}
|
|
|
|
void
|
|
drawsetup(void) {
|
|
/* style */
|
|
dc.norm[ColBG] = getcolor(normbgcolor);
|
|
dc.norm[ColFG] = getcolor(normfgcolor);
|
|
dc.sel[ColBG] = getcolor(selbgcolor);
|
|
dc.sel[ColFG] = getcolor(selfgcolor);
|
|
|
|
/* pixmap */
|
|
dc.drawable = XCreatePixmap(dpy, parent, mw, mh, DefaultDepth(dpy, screen));
|
|
dc.gc = XCreateGC(dpy, parent, 0, NULL);
|
|
XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
|
|
if(!dc.font.set)
|
|
XSetFont(dpy, dc.gc, dc.font.xfont->fid);
|
|
}
|
|
|
|
void
|
|
drawtext(const char *text, unsigned long col[ColLast]) {
|
|
char buf[256];
|
|
int i, x, y, h, len, olen;
|
|
XRectangle r = { dc.x, dc.y, dc.w, dc.h };
|
|
|
|
XSetForeground(dpy, dc.gc, col[ColBG]);
|
|
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
|
|
if(!text)
|
|
return;
|
|
olen = strlen(text);
|
|
h = dc.font.height;
|
|
y = dc.y + ((h+2) / 2) - (h / 2) + dc.font.ascent;
|
|
x = dc.x + (h / 2);
|
|
/* shorten text if necessary */
|
|
for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
|
|
if(!len)
|
|
return;
|
|
memcpy(buf, text, len);
|
|
if(len < olen)
|
|
for(i = len; i && i > len - 3; buf[--i] = '.');
|
|
XSetForeground(dpy, dc.gc, col[ColFG]);
|
|
if(dc.font.set)
|
|
XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
|
|
else
|
|
XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
|
|
}
|
|
|
|
void
|
|
eprint(const char *errstr, ...) {
|
|
va_list ap;
|
|
|
|
va_start(ap, errstr);
|
|
vfprintf(stderr, errstr, ap);
|
|
va_end(ap);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
unsigned long
|
|
getcolor(const char *colstr) {
|
|
Colormap cmap = DefaultColormap(dpy, screen);
|
|
XColor color;
|
|
|
|
if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
|
|
eprint("drawtext: cannot allocate color '%s'\n", colstr);
|
|
return color.pixel;
|
|
}
|
|
|
|
void
|
|
initfont(const char *fontstr) {
|
|
char *def, **missing = NULL;
|
|
int i, n;
|
|
|
|
if(!fontstr || fontstr[0] == '\0')
|
|
eprint("drawtext: cannot load font: '%s'\n", fontstr);
|
|
dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
|
|
if(missing)
|
|
XFreeStringList(missing);
|
|
if(dc.font.set) {
|
|
XFontStruct **xfonts;
|
|
char **font_names;
|
|
dc.font.ascent = dc.font.descent = 0;
|
|
n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
|
|
for(i = 0; i < n; i++) {
|
|
dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
|
|
dc.font.descent = MAX(dc.font.descent, (*xfonts)->descent);
|
|
xfonts++;
|
|
}
|
|
}
|
|
else {
|
|
if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
|
|
&& !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
|
|
eprint("drawtext: cannot load font: '%s'\n", fontstr);
|
|
dc.font.ascent = dc.font.xfont->ascent;
|
|
dc.font.descent = dc.font.xfont->descent;
|
|
}
|
|
dc.font.height = dc.font.ascent + dc.font.descent;
|
|
}
|
|
|
|
int
|
|
textnw(const char *text, unsigned int len) {
|
|
XRectangle r;
|
|
|
|
if(dc.font.set) {
|
|
XmbTextExtents(dc.font.set, text, len, NULL, &r);
|
|
return r.width;
|
|
}
|
|
return XTextWidth(dc.font.xfont, text, len);
|
|
}
|
|
|
|
int
|
|
textw(const char *text) {
|
|
return textnw(text, strlen(text)) + dc.font.height;
|
|
}
|