wmfs/util.c
2008-10-11 11:20:20 +02:00

114 lines
3.5 KiB
C

/*
* util.c
* Copyright © 2008 Martin Duquesnoy <xorg62@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of the nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "wmfs.h"
void*
emalloc(uint element, uint size)
{
void *ret = calloc(element, size);
if(!ret)
fprintf(stderr,"WMFS Error: could not malloc() %u bytes\n", size);
return ret;
}
ulong
getcolor(char *color)
{
XColor xcolor;
if(!XAllocNamedColor(dpy,DefaultColormap(dpy, screen), color, &xcolor, &xcolor))
fprintf(stderr,"WMFS Error: cannot allocate color \"%s\"\n", color);
return xcolor.pixel;
}
void
uicb_spawn(uicb_t cmd)
{
char *sh = NULL;
if(!(sh = getenv("SHELL")))
sh = "/bin/sh";
if(!strlen(cmd))
return;
if(fork() == 0)
{
if(fork() == 0)
{
if(dpy)
close(ConnectionNumber(dpy));
setsid();
execl(sh, sh, "-c", cmd, (char*)NULL);
exit(EXIT_FAILURE);
}
exit(EXIT_SUCCESS);
}
return;
}
ushort
textw(const char *text)
{
XGlyphInfo gl;
XftTextExtentsUtf8(dpy, xftfont, (FcChar8 *)text, strlen(text), &gl);
return gl.width;
}
void
xprint(Drawable d, int x, int y, char* fg, uint bg, int decx, int decw, char *str)
{
XftColor xftcolor;
XftDraw *xftd;
/* Transform X Drawable -> Xft Drawable */
xftd = XftDrawCreate(dpy, d, DefaultVisual(dpy, screen), DefaultColormap(dpy, screen));
/* Color the text font */
XSetForeground(dpy, gc, bg);
XFillRectangle(dpy, d, gc, x - decx, 0, textw(str) - decw, barheight);
/* Alloc text color and draw */
XftColorAllocName(dpy,
DefaultVisual(dpy, screen),
DefaultColormap(dpy, screen),
fg, &xftcolor);
XftDrawStringUtf8(xftd, &xftcolor, xftfont, x, y, (FcChar8 *)str, strlen(str));
XftColorFree(dpy, DefaultVisual(dpy, screen), DefaultColormap(dpy, screen), &xftcolor);
return;
}