4 * i3 - an improved dynamic tiling window manager
6 * © 2009 Michael Stapelberg and contributors
8 * See file LICENSE for license information.
18 #include <xcb/xcb_keysyms.h>
20 #include <X11/keysym.h>
24 extern xcb_window_t root;
25 unsigned int xcb_numlock_mask;
28 * Convenience-wrapper around xcb_change_gc which saves us declaring a variable
31 void xcb_change_gc_single(xcb_connection_t *conn, xcb_gcontext_t gc, uint32_t mask, uint32_t value) {
32 xcb_change_gc(conn, gc, mask, &value);
36 * Returns the colorpixel to use for the given hex color (think of HTML).
38 * The hex_color has to start with #, for example #FF00FF.
40 * NOTE that get_colorpixel() does _NOT_ check the given color code for validity.
41 * This has to be done by the caller.
44 uint32_t get_colorpixel(xcb_connection_t *conn, char *hex) {
45 char strgroups[3][3] = {{hex[1], hex[2], '\0'},
46 {hex[3], hex[4], '\0'},
47 {hex[5], hex[6], '\0'}};
48 uint32_t rgb16[3] = {(strtol(strgroups[0], NULL, 16)),
49 (strtol(strgroups[1], NULL, 16)),
50 (strtol(strgroups[2], NULL, 16))};
52 return (rgb16[0] << 16) + (rgb16[1] << 8) + rgb16[2];
56 * Returns the mask for Mode_switch (to be used for looking up keysymbols by
60 uint32_t get_mod_mask(xcb_connection_t *conn, uint32_t keycode) {
61 xcb_key_symbols_t *symbols = xcb_key_symbols_alloc(conn);
63 xcb_get_modifier_mapping_reply_t *modmap_r;
64 xcb_keycode_t *modmap, kc;
65 xcb_keycode_t *modeswitchcodes = xcb_key_symbols_get_keycode(symbols, keycode);
66 if (modeswitchcodes == NULL)
69 modmap_r = xcb_get_modifier_mapping_reply(conn, xcb_get_modifier_mapping(conn), NULL);
70 modmap = xcb_get_modifier_mapping_keycodes(modmap_r);
72 for (int i = 0; i < 8; i++)
73 for (int j = 0; j < modmap_r->keycodes_per_modifier; j++) {
74 kc = modmap[i * modmap_r->keycodes_per_modifier + j];
75 for (xcb_keycode_t *ktest = modeswitchcodes; *ktest; ktest++) {
79 free(modeswitchcodes);
89 * Opens the window we use for input/output and maps it
92 xcb_window_t open_input_window(xcb_connection_t *conn, uint32_t width, uint32_t height) {
93 xcb_window_t win = xcb_generate_id(conn);
94 //xcb_cursor_t cursor_id = xcb_generate_id(conn);
97 /* Use the default cursor (left pointer) */
99 i3Font *cursor_font = load_font(conn, "cursor");
100 xcb_create_glyph_cursor(conn, cursor_id, cursor_font->id, cursor_font->id,
101 XCB_CURSOR_LEFT_PTR, XCB_CURSOR_LEFT_PTR + 1,
102 0, 0, 0, 65535, 65535, 65535);
109 mask |= XCB_CW_BACK_PIXEL;
112 mask |= XCB_CW_EVENT_MASK;
113 values[1] = XCB_EVENT_MASK_EXPOSURE |
114 XCB_EVENT_MASK_BUTTON_PRESS;
116 xcb_create_window(conn,
117 XCB_COPY_FROM_PARENT,
118 win, /* the window id */
119 root, /* parent == root */
120 490, 297, width, height, /* dimensions */
121 0, /* border = 0, we draw our own */
122 XCB_WINDOW_CLASS_INPUT_OUTPUT,
123 XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */
129 xcb_change_window_attributes(conn, result, XCB_CW_CURSOR, &cursor_id);
132 /* Map the window (= make it visible) */
133 xcb_map_window(conn, win);
139 * Returns the ID of the font matching the given pattern and stores the height
140 * of the font (in pixels) in *font_height. die()s if no font matches.
143 int get_font_id(xcb_connection_t *conn, char *pattern, int *font_height) {
144 xcb_void_cookie_t font_cookie;
145 xcb_list_fonts_with_info_cookie_t info_cookie;
147 /* Send all our requests first */
149 result = xcb_generate_id(conn);
150 font_cookie = xcb_open_font_checked(conn, result, strlen(pattern), pattern);
151 info_cookie = xcb_list_fonts_with_info(conn, 1, strlen(pattern), pattern);
153 xcb_generic_error_t *error = xcb_request_check(conn, font_cookie);
155 fprintf(stderr, "ERROR: Could not open font: %d\n", error->error_code);
159 /* Get information (height/name) for this font */
160 xcb_list_fonts_with_info_reply_t *reply = xcb_list_fonts_with_info_reply(conn, info_cookie, NULL);
162 errx(1, "Could not load font \"%s\"\n", pattern);
164 *font_height = reply->font_ascent + reply->font_descent;
170 * Finds out which modifier mask is the one for numlock, as the user may change this.
173 void xcb_get_numlock_mask(xcb_connection_t *conn) {
174 xcb_key_symbols_t *keysyms;
175 xcb_get_modifier_mapping_cookie_t cookie;
176 xcb_get_modifier_mapping_reply_t *reply;
177 xcb_keycode_t *modmap;
179 const int masks[8] = { XCB_MOD_MASK_SHIFT,
181 XCB_MOD_MASK_CONTROL,
188 /* Request the modifier map */
189 cookie = xcb_get_modifier_mapping_unchecked(conn);
191 /* Get the keysymbols */
192 keysyms = xcb_key_symbols_alloc(conn);
194 if ((reply = xcb_get_modifier_mapping_reply(conn, cookie, NULL)) == NULL) {
195 xcb_key_symbols_free(keysyms);
199 modmap = xcb_get_modifier_mapping_keycodes(reply);
201 /* Get the keycode for numlock */
202 #ifdef OLD_XCB_KEYSYMS_API
203 xcb_keycode_t numlock = xcb_key_symbols_get_keycode(keysyms, XCB_NUM_LOCK);
205 /* For now, we only use the first keysymbol. */
206 xcb_keycode_t *numlock_syms = xcb_key_symbols_get_keycode(keysyms, XCB_NUM_LOCK);
207 if (numlock_syms == NULL)
209 xcb_keycode_t numlock = *numlock_syms;
213 /* Check all modifiers (Mod1-Mod5, Shift, Control, Lock) */
214 for (mask = 0; mask < 8; mask++)
215 for (i = 0; i < reply->keycodes_per_modifier; i++)
216 if (modmap[(mask * reply->keycodes_per_modifier) + i] == numlock)
217 xcb_numlock_mask = masks[mask];
219 xcb_key_symbols_free(keysyms);