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/* Copyright (c) 2015 Jonas Kulla <Nyocurio@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <X11/cursorfont.h>
#include <X11/Xutil.h>
#include <unistd.h>
#include <stdio.h>
int main(int argc, char *argv[]) {
int opt;
int one_shot = 0;
int quit_on_keypress = 0;
int output_format = 0x11;
while ((opt = getopt(argc, argv, "oqhrd")) != -1) {
switch(opt) {
case 'o':
one_shot = 1;
break;
case 'q':
quit_on_keypress = 1;
break;
case 'r':
output_format &= 0x1;
break;
case 'd':
output_format &= 0x10;
break;
case 'h':
printf( "colorpicker [options]\n"
" -h: show this help\n"
" -o: oneshot\n"
" -q: quit on keypress\n"
" -d: hex only\n"
" -r: rgb only\n");
return 0;
default:
return 1;
}
}
Display *display = XOpenDisplay(NULL);
Window root = DefaultRootWindow(display);
Cursor cursor = XCreateFontCursor(display, 130);
XGrabPointer(display, root, 0, ButtonPressMask, GrabModeAsync, GrabModeAsync, root, cursor, CurrentTime);
XWindowAttributes gwa;
XGetWindowAttributes(display, root, &gwa);
XGrabKeyboard(display, root, 0, GrabModeAsync, GrabModeAsync, CurrentTime);
for(;;) {
XEvent e;
XNextEvent(display, &e);
XImage *image = XGetImage(display, root, 0, 0, gwa.width, gwa.height, AllPlanes, ZPixmap);
if (e.type == ButtonPress && e.xbutton.button == Button1) {
unsigned long pixel = XGetPixel(image, e.xbutton.x_root, e.xbutton.y_root);
if (output_format & 0x1) {
printf("%d,%d,%d ", (pixel >> 0x10) & 0xFF, (pixel >> 0x08) & 0xFF, pixel & 0xFF);
}
if (output_format & 0x10) {
printf("#%06X", pixel);
}
puts("");
if (one_shot) {
break;
}
} else if (e.type == ButtonPress ||
(e.type == KeyPress && (e.xkey.keycode == 53 || quit_on_keypress))) {
break;
}
XDestroyImage(image);
}
/* will be done on connection close anw */
XUngrabPointer(display, CurrentTime);
XUngrabKeyboard(display, CurrentTime);
XFreeCursor(display, cursor);
XDestroyWindow(display, root);
XCloseDisplay(display);
}
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