i3
xcursor.c
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1 #undef I3__FILE__
2 #define I3__FILE__ "xcursor.c"
3 /*
4  * vim:ts=4:sw=4:expandtab
5  *
6  * i3 - an improved dynamic tiling window manager
7  * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
8  *
9  * xcursor.c: xcursor support for themed cursors.
10  *
11  */
12 #include <assert.h>
13 #include <xcb/xcb_cursor.h>
14 
15 #include "i3.h"
16 #include "xcb.h"
17 #include "xcursor.h"
18 
19 static xcb_cursor_context_t *ctx;
20 static xcb_cursor_t cursors[XCURSOR_CURSOR_MAX];
21 
22 static const int xcb_cursors[XCURSOR_CURSOR_MAX] = {
27 
29  if (xcb_cursor_context_new(conn, root_screen, &ctx) < 0) {
30  ELOG("xcursor support unavailable\n");
31  xcursor_supported = false;
32  return;
33  }
34 #define LOAD_CURSOR(constant, name) \
35  do { \
36  cursors[constant] = xcb_cursor_load_cursor(ctx, name); \
37  } while (0)
39  LOAD_CURSOR(XCURSOR_CURSOR_RESIZE_HORIZONTAL, "sb_h_double_arrow");
40  LOAD_CURSOR(XCURSOR_CURSOR_RESIZE_VERTICAL, "sb_v_double_arrow");
43  LOAD_CURSOR(XCURSOR_CURSOR_TOP_LEFT_CORNER, "top_left_corner");
44  LOAD_CURSOR(XCURSOR_CURSOR_TOP_RIGHT_CORNER, "top_right_corner");
45  LOAD_CURSOR(XCURSOR_CURSOR_BOTTOM_LEFT_CORNER, "bottom_left_corner");
46  LOAD_CURSOR(XCURSOR_CURSOR_BOTTOM_RIGHT_CORNER, "bottom_right_corner");
47 #undef LOAD_CURSOR
48 }
49 
50 /*
51  * Sets the cursor of the root window to the 'pointer' cursor.
52  *
53  * This function is called when i3 is initialized, because with some login
54  * managers, the root window will not have a cursor otherwise.
55  *
56  */
57 void xcursor_set_root_cursor(int cursor_id) {
58  xcb_change_window_attributes(conn, root, XCB_CW_CURSOR,
59  (uint32_t[]) {xcursor_get_cursor(cursor_id)});
60 }
61 
62 xcb_cursor_t xcursor_get_cursor(enum xcursor_cursor_t c) {
63  assert(c < XCURSOR_CURSOR_MAX);
64  return cursors[c];
65 }
66 
68  assert(c < XCURSOR_CURSOR_MAX);
69  return xcb_cursors[c];
70 }
int xcursor_get_xcb_cursor(enum xcursor_cursor_t c)
Definition: xcursor.c:67
xcb_connection_t * conn
Definition: main.c:47
xcursor_cursor_t
Definition: xcursor.h:14
static const int xcb_cursors[XCURSOR_CURSOR_MAX]
Definition: xcursor.c:22
xcb_screen_t * root_screen
Definition: main.c:59
#define XCB_CURSOR_SB_V_DOUBLE_ARROW
Definition: xcb.h:23
#define XCB_CURSOR_LEFT_PTR
This is the equivalent of XC_left_ptr.
Definition: xcb.h:21
bool xcursor_supported
Definition: main.c:96
static xcb_cursor_t cursors[XCURSOR_CURSOR_MAX]
Definition: xcursor.c:20
xcb_cursor_t xcursor_get_cursor(enum xcursor_cursor_t c)
Definition: xcursor.c:62
void xcursor_set_root_cursor(int cursor_id)
Sets the cursor of the root window to the &#39;pointer&#39; cursor.
Definition: xcursor.c:57
void xcursor_load_cursors(void)
Definition: xcursor.c:28
#define ELOG(fmt,...)
Definition: libi3.h:81
#define XCB_CURSOR_SB_H_DOUBLE_ARROW
Definition: xcb.h:22
static xcb_cursor_context_t * ctx
Definition: xcursor.c:19
#define XCB_CURSOR_WATCH
Definition: xcb.h:24
#define LOAD_CURSOR(constant, name)
xcb_window_t root
Definition: main.c:60