2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
7 * For more information on RandR, please see the X.org RandR specification at
8 * http://cgit.freedesktop.org/xorg/proto/randrproto/tree/randrproto.txt
9 * (take your time to read it completely, it answers all questions).
16 #include <xcb/randr.h>
18 TAILQ_HEAD(outputs_head, xoutput);
19 extern struct outputs_head outputs;
27 * We have just established a connection to the X server and need the initial
28 * XRandR information to setup workspaces for each screen.
31 void randr_init(int *event_base);
34 * Disables RandR support by creating exactly one output with the size of the
38 void disable_randr(xcb_connection_t *conn);
41 * Initializes a CT_OUTPUT Con (searches existing ones from inplace restart
42 * before) to use for the given Output.
45 void output_init_con(Output *output);
48 * Initializes at least one workspace for this output, trying the following
49 * steps until there is at least one workspace:
51 * • Move existing workspaces, which are assigned to be on the given output, to
53 * • Create the first assigned workspace for this output.
54 * • Create the first unused workspace.
57 void init_ws_for_output(Output *output, Con *content);
60 * Initializes the specified output, assigning the specified workspace to it.
63 //void initialize_output(xcb_connection_t *conn, Output *output, Workspace *workspace);
66 * (Re-)queries the outputs via RandR and stores them in the list of outputs.
69 void randr_query_outputs(void);
72 * Returns the first output which is active.
75 Output *get_first_output(void);
78 * Returns the output with the given name if it is active (!) or NULL.
81 Output *get_output_by_name(const char *name);
84 * Returns the active (!) output which contains the coordinates x, y or NULL
85 * if there is no output which contains these coordinates.
88 Output *get_output_containing(int x, int y);
91 * In contained_by_output, we check if any active output contains part of the container.
92 * We do this by checking if the output rect is intersected by the Rect.
93 * This is the 2-dimensional counterpart of get_output_containing.
94 * Since we don't actually need the outputs intersected by the given Rect (There could
95 * be many), we just return true or false for convenience.
98 bool contained_by_output(Rect rect);
101 * Gets the output which is the next one in the given direction.
103 * If close_far == CLOSEST_OUTPUT, then the output next to the current one will
104 * selected. If close_far == FARTHEST_OUTPUT, the output which is the last one
105 * in the given direction will be selected.
107 * NULL will be returned when no active outputs are present in the direction
108 * specified (note that ‘current’ counts as such an output).
111 Output *get_output_next(direction_t direction, Output *current, output_close_far_t close_far);
114 * Like get_output_next with close_far == CLOSEST_OUTPUT, but wraps.
116 * For example if get_output_next(D_DOWN, x, FARTHEST_OUTPUT) = NULL, then
117 * get_output_next_wrap(D_DOWN, x) will return the topmost output.
119 * This function always returns a output: if no active outputs can be found,
120 * current itself is returned.
123 Output *get_output_next_wrap(direction_t direction, Output *current);