awesome/draw.c
2007-09-20 20:11:33 +02:00

106 lines
3.2 KiB
C

/*
* draw.c - draw functions
*
* Copyright © 2007 Julien Danjou <julien@danjou.info>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include "layout.h"
#include "util.h"
#include "draw.h"
extern Client *clients, *sel, *stack; /* global client list and stack */
/* static */
void
drawtext(Display *disp, DC drawcontext, Drawable drawable, const char *text, unsigned long col[ColLast])
{
int x, y, w, h;
static char buf[256];
size_t len, olen;
XRectangle r = { drawcontext.x, drawcontext.y, drawcontext.w, drawcontext.h };
XSetForeground(disp, drawcontext.gc, col[ColBG]);
XFillRectangles(disp, drawable, drawcontext.gc, &r, 1);
if(!text)
return;
w = 0;
olen = len = a_strlen(text);
if(len >= sizeof(buf))
len = sizeof(buf) - 1;
memcpy(buf, text, len);
buf[len] = 0;
h = drawcontext.font.ascent + drawcontext.font.descent;
y = drawcontext.y + (drawcontext.h / 2) - (h / 2) + drawcontext.font.ascent;
x = drawcontext.x + (h / 2);
/* shorten text if necessary */
while(len && (w = textnw(drawcontext.font.set, drawcontext.font.xfont, buf, len)) > drawcontext.w - h)
buf[--len] = 0;
if(w > drawcontext.w)
return; /* too long */
if(len < olen)
{
if(len > 1)
buf[len - 1] = '.';
if(len > 2)
buf[len - 2] = '.';
if(len > 3)
buf[len - 3] = '.';
}
XSetForeground(disp, drawcontext.gc, col[ColFG]);
if(drawcontext.font.set)
XmbDrawString(disp, drawable, drawcontext.font.set, drawcontext.gc, x, y, buf, len);
else
XDrawString(disp, drawable, drawcontext.gc, x, y, buf, len);
}
void
drawsquare(Display *disp, DC drawcontext, Drawable drawable, Bool filled, unsigned long col)
{
int x;
XGCValues gcv;
XRectangle r = { drawcontext.x, drawcontext.y, drawcontext.w, drawcontext.h };
gcv.foreground = col;
XChangeGC(disp, drawcontext.gc, GCForeground, &gcv);
x = (drawcontext.font.ascent + drawcontext.font.descent + 2) / 4;
r.x = drawcontext.x + 1;
r.y = drawcontext.y + 1;
r.width = r.height = x;
if(filled)
{
r.width++; r.height++;
XFillRectangles(disp, drawable, drawcontext.gc, &r, 1);
}
else
XDrawRectangles(disp, drawable, drawcontext.gc, &r, 1);
}
int
textnw(XFontSet set, XFontStruct *xfont, const char *text, int len)
{
XRectangle r;
if(set)
{
XmbTextExtents(set, text, len, NULL, &r);
return r.width;
}
return XTextWidth(xfont, text, len);
}