gri3-wm/src/xcursor.c

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/*
* vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
* © 2009 Michael Stapelberg and contributors (see also: LICENSE)
*
* xcursor.c: xcursor support for themed cursors.
*
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*/
#include <config.h>
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#include <assert.h>
#include <xcb/xcb_cursor.h>
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#include "i3.h"
#include "xcb.h"
#include "xcursor.h"
static xcb_cursor_context_t *ctx;
static xcb_cursor_t cursors[XCURSOR_CURSOR_MAX];
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static const int xcb_cursors[XCURSOR_CURSOR_MAX] = {
XCB_CURSOR_LEFT_PTR,
XCB_CURSOR_SB_H_DOUBLE_ARROW,
XCB_CURSOR_SB_V_DOUBLE_ARROW,
XCB_CURSOR_WATCH};
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void xcursor_load_cursors(void) {
if (xcb_cursor_context_new(conn, root_screen, &ctx) < 0) {
ELOG("xcursor support unavailable\n");
xcursor_supported = false;
return;
}
#define LOAD_CURSOR(constant, name) \
do { \
cursors[constant] = xcb_cursor_load_cursor(ctx, name); \
} while (0)
LOAD_CURSOR(XCURSOR_CURSOR_POINTER, "left_ptr");
LOAD_CURSOR(XCURSOR_CURSOR_RESIZE_HORIZONTAL, "sb_h_double_arrow");
LOAD_CURSOR(XCURSOR_CURSOR_RESIZE_VERTICAL, "sb_v_double_arrow");
LOAD_CURSOR(XCURSOR_CURSOR_WATCH, "watch");
LOAD_CURSOR(XCURSOR_CURSOR_MOVE, "fleur");
LOAD_CURSOR(XCURSOR_CURSOR_TOP_LEFT_CORNER, "top_left_corner");
LOAD_CURSOR(XCURSOR_CURSOR_TOP_RIGHT_CORNER, "top_right_corner");
LOAD_CURSOR(XCURSOR_CURSOR_BOTTOM_LEFT_CORNER, "bottom_left_corner");
LOAD_CURSOR(XCURSOR_CURSOR_BOTTOM_RIGHT_CORNER, "bottom_right_corner");
#undef LOAD_CURSOR
}
/*
* Sets the cursor of the root window to the 'pointer' cursor.
*
* This function is called when i3 is initialized, because with some login
* managers, the root window will not have a cursor otherwise.
*
*/
void xcursor_set_root_cursor(int cursor_id) {
xcb_change_window_attributes(conn, root, XCB_CW_CURSOR,
(uint32_t[]){xcursor_get_cursor(cursor_id)});
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}
xcb_cursor_t xcursor_get_cursor(enum xcursor_cursor_t c) {
assert(c < XCURSOR_CURSOR_MAX);
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return cursors[c];
}
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int xcursor_get_xcb_cursor(enum xcursor_cursor_t c) {
assert(c < XCURSOR_CURSOR_MAX);
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return xcb_cursors[c];
}