i3
xcb.h
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1 /*
2  * vim:ts=4:sw=4:expandtab
3  *
4  * i3 - an improved dynamic tiling window manager
5  * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
6  *
7  * xcb.c: Helper functions for easier usage of XCB
8  *
9  */
10 #pragma once
11 
12 #include "data.h"
13 #include "xcursor.h"
14 
15 #define _NET_WM_STATE_REMOVE 0
16 #define _NET_WM_STATE_ADD 1
17 #define _NET_WM_STATE_TOGGLE 2
18 
21 #define XCB_CURSOR_LEFT_PTR 68
22 #define XCB_CURSOR_SB_H_DOUBLE_ARROW 108
23 #define XCB_CURSOR_SB_V_DOUBLE_ARROW 116
24 #define XCB_CURSOR_WATCH 150
25 
26 /* from X11/keysymdef.h */
27 #define XCB_NUM_LOCK 0xff7f
28 
29 /* The event masks are defined here because we don’t only set them once but we
30  need to set slight variations of them (without XCB_EVENT_MASK_ENTER_WINDOW
31  while rendering the layout) */
33 #define CHILD_EVENT_MASK (XCB_EVENT_MASK_PROPERTY_CHANGE | \
34  XCB_EVENT_MASK_STRUCTURE_NOTIFY | \
35  XCB_EVENT_MASK_FOCUS_CHANGE)
36 
38 #define FRAME_EVENT_MASK (XCB_EVENT_MASK_BUTTON_PRESS | /* …mouse is pressed/released */ \
39  XCB_EVENT_MASK_BUTTON_RELEASE | \
40  XCB_EVENT_MASK_POINTER_MOTION | /* …mouse is moved */ \
41  XCB_EVENT_MASK_EXPOSURE | /* …our window needs to be redrawn */ \
42  XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* …the frame gets destroyed */ \
43  XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | /* …the application tries to resize itself */ \
44  XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | /* …subwindows get notifies */ \
45  XCB_EVENT_MASK_ENTER_WINDOW) /* …user moves cursor inside our window */
46 
47 #define ROOT_EVENT_MASK (XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | \
48  XCB_EVENT_MASK_BUTTON_PRESS | \
49  XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* when the user adds a screen (e.g. video \
50  projector), the root window gets a \
51  ConfigureNotify */ \
52  XCB_EVENT_MASK_POINTER_MOTION | \
53  XCB_EVENT_MASK_PROPERTY_CHANGE | \
54  XCB_EVENT_MASK_ENTER_WINDOW)
55 
56 #define xmacro(atom) xcb_atom_t A_ ## atom;
57 #include "atoms.xmacro"
58 #undef xmacro
59 
60 extern unsigned int xcb_numlock_mask;
61 
67 xcb_window_t create_window(xcb_connection_t *conn, Rect r, uint16_t depth, xcb_visualid_t visual,
68  uint16_t window_class, enum xcursor_cursor_t cursor, bool map, uint32_t mask, uint32_t *values);
69 
74 void xcb_draw_line(xcb_connection_t *conn, xcb_drawable_t drawable,
75  xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x,
76  uint32_t y, uint32_t to_x, uint32_t to_y);
77 
82 void xcb_draw_rect(xcb_connection_t *conn, xcb_drawable_t drawable,
83  xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x,
84  uint32_t y, uint32_t width, uint32_t height);
85 
92 
97 void send_take_focus(xcb_window_t window, xcb_timestamp_t timestamp);
98 
103 void xcb_raise_window(xcb_connection_t *conn, xcb_window_t window);
104 
109 void xcb_set_window_rect(xcb_connection_t *conn, xcb_window_t window, Rect r);
110 
111 
112 bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom);
113 
118 void xcb_warp_pointer_rect(xcb_connection_t *conn, Rect *rect);
119 
126 void xcb_set_root_cursor(int cursor);
127 
132 uint16_t get_visual_depth(xcb_visualid_t visual_id);
133 
138 xcb_visualid_t get_visualid_by_depth(uint16_t depth);
xcb_window_t create_window(xcb_connection_t *conn, Rect r, uint16_t depth, xcb_visualid_t visual, uint16_t window_class, enum xcursor_cursor_t cursor, bool map, uint32_t mask, uint32_t *values)
Convenience wrapper around xcb_create_window which takes care of depth, generating an ID and checking...
Definition: xcb.c:21
uint32_t height
Definition: data.h:33
xcb_connection_t * conn
Definition: main.c:47
xcb_visualid_t visual_id
Definition: main.c:66
void fake_absolute_configure_notify(Con *con)
Generates a configure_notify_event with absolute coordinates (relative to the X root window...
Definition: xcb.c:94
Stores a rectangle, for example the size of a window, the child window etc.
Definition: data.h:122
xcursor_cursor_t
Definition: xcursor.h:14
void xcb_raise_window(xcb_connection_t *conn, xcb_window_t window)
Raises the given window (typically client->frame) above all other windows.
Definition: xcb.c:136
void xcb_set_root_cursor(int cursor)
Set the cursor of the root window to the given cursor id.
Definition: xcb.c:194
uint32_t width
Definition: data.h:32
void xcb_set_window_rect(xcb_connection_t *conn, xcb_window_t window, Rect r)
Configures the given window to have the size/position specified by given rect.
Definition: xcb.c:145
xcb_visualid_t get_visualid_by_depth(uint16_t depth)
Get visualid with specified depth.
Definition: xcb.c:231
unsigned int xcb_numlock_mask
Definition: xcb.c:14
void xcb_warp_pointer_rect(xcb_connection_t *conn, Rect *rect)
Moves the mouse pointer into the middle of rect.
Definition: xcb.c:180
A 'Con' represents everything from the X11 root window down to a single X11 window.
Definition: data.h:479
void xcb_draw_rect(xcb_connection_t *conn, xcb_drawable_t drawable, xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x, uint32_t y, uint32_t width, uint32_t height)
Draws a rectangle from x,y with width,height using the given color.
Definition: xcb.c:82
uint16_t get_visual_depth(xcb_visualid_t visual_id)
Get depth of visual specified by visualid.
Definition: xcb.c:210
bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom)
Definition: xcb.c:161
uint32_t y
Definition: data.h:31
void send_take_focus(xcb_window_t window, xcb_timestamp_t timestamp)
Sends the WM_TAKE_FOCUS ClientMessage to the given window.
Definition: xcb.c:113
uint32_t x
Definition: data.h:30
void xcb_draw_line(xcb_connection_t *conn, xcb_drawable_t drawable, xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x, uint32_t y, uint32_t to_x, uint32_t to_y)
Draws a line from x,y to to_x,to_y using the given color.
Definition: xcb.c:71