2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
7 * xcb.c: Helper functions for easier usage of XCB
16 #define _NET_WM_STATE_REMOVE 0
17 #define _NET_WM_STATE_ADD 1
18 #define _NET_WM_STATE_TOGGLE 2
20 /** This is the equivalent of XC_left_ptr. I’m not sure why xcb doesn’t have a
21 * constant for that. */
22 #define XCB_CURSOR_LEFT_PTR 68
23 #define XCB_CURSOR_SB_H_DOUBLE_ARROW 108
24 #define XCB_CURSOR_SB_V_DOUBLE_ARROW 116
25 #define XCB_CURSOR_WATCH 150
27 /* from X11/keysymdef.h */
28 #define XCB_NUM_LOCK 0xff7f
30 /* The event masks are defined here because we don’t only set them once but we
31 need to set slight variations of them (without XCB_EVENT_MASK_ENTER_WINDOW
32 while rendering the layout) */
33 /** The XCB_CW_EVENT_MASK for the child (= real window) */
34 #define CHILD_EVENT_MASK (XCB_EVENT_MASK_PROPERTY_CHANGE | \
35 XCB_EVENT_MASK_STRUCTURE_NOTIFY | \
36 XCB_EVENT_MASK_FOCUS_CHANGE)
38 /** The XCB_CW_EVENT_MASK for its frame */
39 #define FRAME_EVENT_MASK (XCB_EVENT_MASK_BUTTON_PRESS | /* …mouse is pressed/released */ \
40 XCB_EVENT_MASK_BUTTON_RELEASE | \
41 XCB_EVENT_MASK_POINTER_MOTION | /* …mouse is moved */ \
42 XCB_EVENT_MASK_EXPOSURE | /* …our window needs to be redrawn */ \
43 XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* …the frame gets destroyed */ \
44 XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | /* …the application tries to resize itself */ \
45 XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | /* …subwindows get notifies */ \
46 XCB_EVENT_MASK_ENTER_WINDOW) /* …user moves cursor inside our window */
48 #define ROOT_EVENT_MASK (XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | \
49 XCB_EVENT_MASK_BUTTON_PRESS | \
50 XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* when the user adds a screen (e.g. video \
51 projector), the root window gets a \
53 XCB_EVENT_MASK_POINTER_MOTION | \
54 XCB_EVENT_MASK_PROPERTY_CHANGE | \
55 XCB_EVENT_MASK_ENTER_WINDOW)
57 #define xmacro(atom) xcb_atom_t A_ ## atom;
58 #include "atoms.xmacro"
61 extern unsigned int xcb_numlock_mask;
64 * Convenience wrapper around xcb_create_window which takes care of depth,
65 * generating an ID and checking for errors.
68 xcb_window_t create_window(xcb_connection_t *conn, Rect r, uint16_t depth, xcb_visualid_t visual,
69 uint16_t window_class, enum xcursor_cursor_t cursor, bool map, uint32_t mask, uint32_t *values);
72 * Draws a line from x,y to to_x,to_y using the given color
75 void xcb_draw_line(xcb_connection_t *conn, xcb_drawable_t drawable,
76 xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x,
77 uint32_t y, uint32_t to_x, uint32_t to_y);
80 * Draws a rectangle from x,y with width,height using the given color
83 void xcb_draw_rect(xcb_connection_t *conn, xcb_drawable_t drawable,
84 xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x,
85 uint32_t y, uint32_t width, uint32_t height);
88 * Generates a configure_notify_event with absolute coordinates (relative to
89 * the X root window, not to the client’s frame) for the given client.
92 void fake_absolute_configure_notify(Con *con);
95 * Sends the WM_TAKE_FOCUS ClientMessage to the given window
98 void send_take_focus(xcb_window_t window);
101 * Raises the given window (typically client->frame) above all other windows
104 void xcb_raise_window(xcb_connection_t *conn, xcb_window_t window);
107 * Configures the given window to have the size/position specified by given rect
110 void xcb_set_window_rect(xcb_connection_t *conn, xcb_window_t window, Rect r);
113 bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom);
116 * Moves the mouse pointer into the middle of rect.
119 void xcb_warp_pointer_rect(xcb_connection_t *conn, Rect *rect);
122 * Set the cursor of the root window to the given cursor id.
123 * This function should only be used if xcursor_supported == false.
124 * Otherwise, use xcursor_set_root_cursor().
127 void xcb_set_root_cursor(int cursor);
130 * Get depth of visual specified by visualid
133 uint16_t get_visual_depth(xcb_visualid_t visual_id);
136 * Get visualid with specified depth
139 xcb_visualid_t get_visualid_by_depth(uint16_t depth);