2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009 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).
15 #include <xcb/randr.h>
17 TAILQ_HEAD(outputs_head, xoutput);
18 extern struct outputs_head outputs;
26 * We have just established a connection to the X server and need the initial
27 * XRandR information to setup workspaces for each screen.
30 void randr_init(int *event_base);
33 * Initializes a CT_OUTPUT Con (searches existing ones from inplace restart
34 * before) to use for the given Output.
37 void output_init_con(Output *output);
40 * Initializes at least one workspace for this output, trying the following
41 * steps until there is at least one workspace:
43 * • Move existing workspaces, which are assigned to be on the given output, to
45 * • Create the first assigned workspace for this output.
46 * • Create the first unused workspace.
49 void init_ws_for_output(Output *output, Con *content);
52 * Initializes the specified output, assigning the specified workspace to it.
55 //void initialize_output(xcb_connection_t *conn, Output *output, Workspace *workspace);
58 * (Re-)queries the outputs via RandR and stores them in the list of outputs.
61 void randr_query_outputs(void);
64 * Returns the first output which is active.
67 Output *get_first_output(void);
70 * Returns the output with the given name if it is active (!) or NULL.
73 Output *get_output_by_name(const char *name);
76 * Returns the active (!) output which contains the coordinates x, y or NULL
77 * if there is no output which contains these coordinates.
80 Output *get_output_containing(unsigned int x, unsigned int y);
83 * In contained_by_output, we check if any active output contains part of the container.
84 * We do this by checking if the output rect is intersected by the Rect.
85 * This is the 2-dimensional counterpart of get_output_containing.
86 * Since we don't actually need the outputs intersected by the given Rect (There could
87 * be many), we just return true or false for convenience.
90 bool contained_by_output(Rect rect);
93 * Gets the output which is the next one in the given direction.
95 * If close_far == CLOSEST_OUTPUT, then the output next to the current one will
96 * selected. If close_far == FARTHEST_OUTPUT, the output which is the last one
97 * in the given direction will be selected.
99 * NULL will be returned when no active outputs are present in the direction
100 * specified (note that ‘current’ counts as such an output).
103 Output *get_output_next(direction_t direction, Output *current, output_close_far_t close_far);
106 * Like get_output_next with close_far == CLOSEST_OUTPUT, but wraps.
108 * For example if get_output_next(D_DOWN, x, FARTHEST_OUTPUT) = NULL, then
109 * get_output_next_wrap(D_DOWN, x) will return the topmost output.
111 * This function always returns a output: if no active outputs can be found,
112 * current itself is returned.
115 Output *get_output_next_wrap(direction_t direction, Output *current);
118 * Creates an output covering the root window.
121 Output *create_root_output(xcb_connection_t *conn);