2 #define I3__FILE__ "fake_outputs.c"
4 * vim:ts=4:sw=4:expandtab
6 * i3 - an improved dynamic tiling window manager
7 * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
9 * Faking outputs is useful in pathological situations (like network X servers
10 * which don’t support multi-monitor in a useful way) and for our testsuite.
15 static int num_screens;
18 * Looks in outputs for the Output whose start coordinates are x, y
21 static Output *get_screen_at(int x, int y) {
23 TAILQ_FOREACH(output, &outputs, outputs)
24 if (output->rect.x == x && output->rect.y == y)
31 * Creates outputs according to the given specification.
32 * The specification must be in the format wxh+x+y, for example 1024x768+0+0,
33 * with multiple outputs separated by commas:
34 * 1900x1200+0+0,1280x1024+1900+0
37 void fake_outputs_init(const char *output_spec) {
38 char useless_buffer[1024];
39 const char *walk = output_spec;
40 unsigned int x, y, width, height;
41 while (sscanf(walk, "%ux%u+%u+%u", &width, &height, &x, &y) == 4) {
42 DLOG("Parsed output as width = %u, height = %u at (%u, %u)\n",
44 Output *new_output = get_screen_at(x, y);
45 if (new_output != NULL) {
46 DLOG("Re-used old output %p\n", new_output);
47 /* This screen already exists. We use the littlest screen so that the user
48 can always see the complete workspace */
49 new_output->rect.width = min(new_output->rect.width, width);
50 new_output->rect.height = min(new_output->rect.height, height);
52 new_output = scalloc(sizeof(Output));
53 sasprintf(&(new_output->name), "fake-%d", num_screens);
54 DLOG("Created new fake output %s (%p)\n", new_output->name, new_output);
55 new_output->active = true;
56 new_output->rect.x = x;
57 new_output->rect.y = y;
58 new_output->rect.width = width;
59 new_output->rect.height = height;
60 /* We always treat the screen at 0x0 as the primary screen */
61 if (new_output->rect.x == 0 && new_output->rect.y == 0)
62 TAILQ_INSERT_HEAD(&outputs, new_output, outputs);
63 else TAILQ_INSERT_TAIL(&outputs, new_output, outputs);
64 output_init_con(new_output);
65 init_ws_for_output(new_output, output_get_content(new_output->con));
69 /* Figure out how long the input was to skip it */
70 walk += sprintf(useless_buffer, "%ux%u+%u+%u", width, height, x, y) + 1;
73 if (num_screens == 0) {
74 ELOG("No screens found. Please fix your setup. i3 will exit now.\n");