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set_opacity.c
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set_opacity.c
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/***************************************************************************
set_opacity.c - description
-------------------
begin : Wed Aug 17 14:03:54 EST 2005
copyright : (C) 2005-2010 by XVilka
email : xvilka@gmail.com
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include "interface.h"
#include "stack.h"
const char* program_name;
Window target_win = 0;
void print_usage(FILE *stream, int exit_code)
{
fprintf(stream, "Usage: %s options \n", program_name);
fprintf(stream,
" -h --help Display this usage information\n"
" -v --verbose Print verbose messages\n"
" -d --display [host]:display.screen Select display and screen for usage\n"
" -i --id PID Use pid for select window\n"
" -m --mouse Use mouse for select window\n"
" -a --all Select all windows\n"
" -n --name NAME Use window name for selection\n"
" -o --opacity 0 .. 1 Window opacity\n"
" -w --wid WID Use window id for selection\n");
exit(exit_code);
}
int main(int argc, char *argv[])
{
int next_option;
const char *const short_options = "hvad:i:mn:w:o:";
const struct option long_options[] = {
{ "help", 0, NULL, 'h' },
{ "verbose", 0, NULL, 'v' },
{ "all", 0, NULL, 'a' },
{ "display", 1, NULL, 'd' },
{ "id", 1, NULL, 'i' },
{ "mouse", 0, NULL, 'm' },
{ "name", 1, NULL, 'n' },
{ "wid", 1, NULL, 'w' },
{ "opacity", 1, NULL, 'o' },
{ NULL, 0, NULL, 0 }
};
int verbose = 0;
program_name = argv[0];
double vopacity;
unsigned int opacity;
char *display_name = NULL;
char *window_name = NULL;
pid_t pid = 0;
unsigned use_mouse = 1;
unsigned all = 0;
Window wid = 0;
unsigned char *data = NULL;
Atom actual;
int format;
unsigned long n, left;
do
{
next_option = getopt_long(argc, argv, short_options, long_options, NULL);
switch (next_option)
{
case 'h':
print_usage(stdout, 0);
case 'v':
verbose = 1;
break;
case 'd':
display_name = optarg;
break;
case 'i':
pid = atoi(optarg);
use_mouse = 0;
break;
case 'm':
use_mouse = 1;
break;
case 'n':
window_name = optarg;
use_mouse = 0;
break;
case 'w':
wid = atoi(optarg);
use_mouse = 0;
break;
case 'o':
vopacity = atof(optarg);
opacity = 1;
break;
case 'a':
all = 1;
pid = 0;
wid = 0;
window_name = NULL;
break;
case '?':
print_usage(stderr, 1);
case -1:
break;
default:
abort();
}
}
while (next_option != -1);
if (verbose) SetDebug(1);
Display *dpy = Open_Display (display_name);
unsigned screen = DefaultScreen(dpy);
if (opacity)
{
opacity = (unsigned int) (vopacity * OPAQUE);
}
else
{
XGetWindowProperty(dpy, target_win, XInternAtom(dpy, OPACITY, False),
0L, 1L, False, XA_CARDINAL, &actual, &format, &n, &left, (unsigned char **) &data);
if (data != NULL)
{
memcpy (&opacity, data, sizeof (unsigned int));
XFree(( void *) data );
if (verbose) fprintf(stdout, "Found property: %g\n", (double) opacity / OPAQUE);
}
else opacity = OPAQUE;
if (opacity != OPAQUE) opacity = OPAQUE;
else opacity = 0xc0000000;
}
if (verbose) fprintf(stdout, "opacity 0x%x\n", opacity);
if (!all)
{
if (use_mouse)
{
if(verbose) fprintf(stdout, "Using mouse for selection.\n");
target_win = Select_Window_by_Mouse(dpy);
if(verbose) fprintf(stdout, "Window id : %lu(0x%lx)\n", target_win, target_win);
}
else if (wid)
{
if(verbose) fprintf(stdout, "Using window id for selection.\n");
target_win = wid;
}
else if (pid)
{
if(verbose) fprintf(stdout, "Using process id for selection.\n");
target_win = Get_Window_by_PID(dpy, pid);
if(target_win) target_win = Get_Top_Window(dpy, target_win);
if(verbose) fprintf(stdout, "Window id : %lu(0x%lx)\n", target_win, target_win);
}
else if (window_name != NULL)
{
if(verbose) fprintf(stdout, "Using window name for selection.\n");
target_win = Get_Window_by_Name(dpy, DefaultRootWindow(dpy), window_name);
if(target_win) target_win = Get_Top_Window(dpy, target_win);
if(verbose) fprintf(stdout, "Window id : %lu(0x%lx)\n", target_win, target_win);
}
if ((opacity == OPAQUE)&&(target_win != 0))
XDeleteProperty (dpy, target_win, XInternAtom(dpy, OPACITY, False));
else
if (target_win != 0) XChangeProperty(dpy, target_win, XInternAtom(dpy, OPACITY, False),
XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &opacity, 1L);
}
if (all)
{
Get_All_Windows(dpy);
while(!STACKempty())
{
if (opacity == OPAQUE)
XDeleteProperty (dpy, STACKpop(), XInternAtom(dpy, OPACITY, False));
else
XChangeProperty(dpy, STACKpop(), XInternAtom(dpy, OPACITY, False),
XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &opacity, 1L);
}
}
XSync(dpy, False);
if(verbose) fprintf(stdout, "Set Property to %g\n", (double) opacity / OPAQUE);
return EXIT_SUCCESS;
}