2012-08-12 12:18:43 +02:00
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#undef I3__FILE__
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#define I3__FILE__ "fake_outputs.c"
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2012-04-09 14:27:33 +02:00
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/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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* © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
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*
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* Faking outputs is useful in pathological situations (like network X servers
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* which don’t support multi-monitor in a useful way) and for our testsuite.
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*
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*/
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#include "all.h"
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static int num_screens;
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/*
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* Looks in outputs for the Output whose start coordinates are x, y
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*
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*/
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static Output *get_screen_at(int x, int y) {
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Output *output;
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TAILQ_FOREACH(output, &outputs, outputs)
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if (output->rect.x == x && output->rect.y == y)
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return output;
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return NULL;
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}
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/*
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* Creates outputs according to the given specification.
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* The specification must be in the format wxh+x+y, for example 1024x768+0+0,
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* with multiple outputs separated by commas:
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* 1900x1200+0+0,1280x1024+1900+0
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*
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*/
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void fake_outputs_init(const char *output_spec) {
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char useless_buffer[1024];
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const char *walk = output_spec;
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unsigned int x, y, width, height;
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while (sscanf(walk, "%ux%u+%u+%u", &width, &height, &x, &y) == 4) {
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DLOG("Parsed output as width = %u, height = %u at (%u, %u)\n",
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width, height, x, y);
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Output *new_output = get_screen_at(x, y);
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if (new_output != NULL) {
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DLOG("Re-used old output %p\n", new_output);
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/* This screen already exists. We use the littlest screen so that the user
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can always see the complete workspace */
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new_output->rect.width = min(new_output->rect.width, width);
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new_output->rect.height = min(new_output->rect.height, height);
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} else {
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new_output = scalloc(sizeof(Output));
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sasprintf(&(new_output->name), "fake-%d", num_screens);
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DLOG("Created new fake output %s (%p)\n", new_output->name, new_output);
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new_output->active = true;
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new_output->rect.x = x;
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new_output->rect.y = y;
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new_output->rect.width = width;
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new_output->rect.height = height;
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/* We always treat the screen at 0x0 as the primary screen */
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if (new_output->rect.x == 0 && new_output->rect.y == 0)
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TAILQ_INSERT_HEAD(&outputs, new_output, outputs);
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else TAILQ_INSERT_TAIL(&outputs, new_output, outputs);
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output_init_con(new_output);
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init_ws_for_output(new_output, output_get_content(new_output->con));
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num_screens++;
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}
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/* Figure out how long the input was to skip it */
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walk += sprintf(useless_buffer, "%ux%u+%u+%u", width, height, x, y) + 1;
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}
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if (num_screens == 0) {
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ELOG("No screens found. Please fix your setup. i3 will exit now.\n");
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exit(0);
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}
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}
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