4 * i3 - an improved dynamic tiling window manager
6 * © 2009 Michael Stapelberg and contributors
8 * See file LICENSE for license information.
17 #include <xcb/xcb_keysyms.h>
19 #include <X11/keysym.h>
24 * Convenience-wrapper around xcb_change_gc which saves us declaring a variable
27 void xcb_change_gc_single(xcb_connection_t *conn, xcb_gcontext_t gc, uint32_t mask, uint32_t value) {
28 xcb_change_gc(conn, gc, mask, &value);
32 * Returns the colorpixel to use for the given hex color (think of HTML).
34 * The hex_color has to start with #, for example #FF00FF.
36 * NOTE that get_colorpixel() does _NOT_ check the given color code for validity.
37 * This has to be done by the caller.
40 uint32_t get_colorpixel(xcb_connection_t *conn, char *hex) {
41 char strgroups[3][3] = {{hex[1], hex[2], '\0'},
42 {hex[3], hex[4], '\0'},
43 {hex[5], hex[6], '\0'}};
44 uint32_t rgb16[3] = {(strtol(strgroups[0], NULL, 16)),
45 (strtol(strgroups[1], NULL, 16)),
46 (strtol(strgroups[2], NULL, 16))};
48 return (rgb16[0] << 16) + (rgb16[1] << 8) + rgb16[2];
52 * Returns the mask for Mode_switch (to be used for looking up keysymbols by
56 uint32_t get_mod_mask(xcb_connection_t *conn, uint32_t keycode) {
57 xcb_key_symbols_t *symbols = xcb_key_symbols_alloc(conn);
59 xcb_get_modifier_mapping_reply_t *modmap_r;
60 xcb_keycode_t *modmap, kc;
61 xcb_keycode_t *modeswitchcodes = xcb_key_symbols_get_keycode(symbols, keycode);
62 if (modeswitchcodes == NULL)
65 modmap_r = xcb_get_modifier_mapping_reply(conn, xcb_get_modifier_mapping(conn), NULL);
66 modmap = xcb_get_modifier_mapping_keycodes(modmap_r);
68 for (int i = 0; i < 8; i++)
69 for (int j = 0; j < modmap_r->keycodes_per_modifier; j++) {
70 kc = modmap[i * modmap_r->keycodes_per_modifier + j];
71 for (xcb_keycode_t *ktest = modeswitchcodes; *ktest; ktest++) {
75 free(modeswitchcodes);
85 * Opens the window we use for input/output and maps it
88 xcb_window_t open_input_window(xcb_connection_t *conn, uint32_t width, uint32_t height) {
89 xcb_window_t win = xcb_generate_id(conn);
90 //xcb_cursor_t cursor_id = xcb_generate_id(conn);
93 /* Use the default cursor (left pointer) */
95 i3Font *cursor_font = load_font(conn, "cursor");
96 xcb_create_glyph_cursor(conn, cursor_id, cursor_font->id, cursor_font->id,
97 XCB_CURSOR_LEFT_PTR, XCB_CURSOR_LEFT_PTR + 1,
98 0, 0, 0, 65535, 65535, 65535);
105 mask |= XCB_CW_BACK_PIXEL;
108 mask |= XCB_CW_OVERRIDE_REDIRECT;
111 mask |= XCB_CW_EVENT_MASK;
112 values[2] = XCB_EVENT_MASK_EXPOSURE;
114 xcb_create_window(conn,
115 XCB_COPY_FROM_PARENT,
116 win, /* the window id */
117 root, /* parent == root */
118 50, 50, width, height, /* dimensions */
119 0, /* border = 0, we draw our own */
120 XCB_WINDOW_CLASS_INPUT_OUTPUT,
121 XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */
127 xcb_change_window_attributes(conn, result, XCB_CW_CURSOR, &cursor_id);
130 /* Map the window (= make it visible) */
131 xcb_map_window(conn, win);
137 * Returns the ID of the font matching the given pattern and stores the height
138 * of the font (in pixels) in *font_height. die()s if no font matches.
141 int get_font_id(xcb_connection_t *conn, char *pattern, int *font_height) {
142 xcb_void_cookie_t font_cookie;
143 xcb_list_fonts_with_info_cookie_t info_cookie;
145 /* Send all our requests first */
147 result = xcb_generate_id(conn);
148 font_cookie = xcb_open_font_checked(conn, result, strlen(pattern), pattern);
149 info_cookie = xcb_list_fonts_with_info(conn, 1, strlen(pattern), pattern);
151 xcb_generic_error_t *error = xcb_request_check(conn, font_cookie);
153 fprintf(stderr, "ERROR: Could not open font: %d\n", error->error_code);
157 /* Get information (height/name) for this font */
158 xcb_list_fonts_with_info_reply_t *reply = xcb_list_fonts_with_info_reply(conn, info_cookie, NULL);
160 die("Could not load font \"%s\"\n", pattern);
162 *font_height = reply->font_ascent + reply->font_descent;