158 lines
4.8 KiB
C
158 lines
4.8 KiB
C
/*
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* vim:ts=8:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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*
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* © 2009 Michael Stapelberg and contributors
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*
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* See file LICENSE for license information.
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*
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <xcb/xcb.h>
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#include <xcb/xcb_keysyms.h>
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#include <X11/keysym.h>
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#include "i3-input.h"
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/*
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* Returns the colorpixel to use for the given hex color (think of HTML).
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*
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* The hex_color has to start with #, for example #FF00FF.
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*
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* NOTE that get_colorpixel() does _NOT_ check the given color code for validity.
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* This has to be done by the caller.
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*
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*/
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uint32_t get_colorpixel(xcb_connection_t *conn, char *hex) {
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char strgroups[3][3] = {{hex[1], hex[2], '\0'},
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{hex[3], hex[4], '\0'},
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{hex[5], hex[6], '\0'}};
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uint32_t rgb16[3] = {(strtol(strgroups[0], NULL, 16)),
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(strtol(strgroups[1], NULL, 16)),
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(strtol(strgroups[2], NULL, 16))};
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return (rgb16[0] << 16) + (rgb16[1] << 8) + rgb16[2];
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}
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/*
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* Returns the mask for Mode_switch (to be used for looking up keysymbols by
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* keycode).
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*
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*/
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uint32_t get_mod_mask(xcb_connection_t *conn, uint32_t keycode) {
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xcb_key_symbols_t *symbols = xcb_key_symbols_alloc(conn);
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xcb_get_modifier_mapping_reply_t *modmap_r;
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xcb_keycode_t *modmap, kc;
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xcb_keycode_t *modeswitchcodes = xcb_key_symbols_get_keycode(symbols, keycode);
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if (modeswitchcodes == NULL)
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return 0;
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modmap_r = xcb_get_modifier_mapping_reply(conn, xcb_get_modifier_mapping(conn), NULL);
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modmap = xcb_get_modifier_mapping_keycodes(modmap_r);
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for (int i = 0; i < 8; i++)
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for (int j = 0; j < modmap_r->keycodes_per_modifier; j++) {
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kc = modmap[i * modmap_r->keycodes_per_modifier + j];
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for (xcb_keycode_t *ktest = modeswitchcodes; *ktest; ktest++) {
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if (*ktest != kc)
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continue;
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free(modeswitchcodes);
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free(modmap_r);
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return (1 << i);
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}
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}
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return 0;
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}
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/*
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* Opens the window we use for input/output and maps it
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*
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*/
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xcb_window_t open_input_window(xcb_connection_t *conn, uint32_t width, uint32_t height) {
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xcb_window_t win = xcb_generate_id(conn);
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//xcb_cursor_t cursor_id = xcb_generate_id(conn);
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#if 0
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/* Use the default cursor (left pointer) */
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if (cursor > -1) {
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i3Font *cursor_font = load_font(conn, "cursor");
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xcb_create_glyph_cursor(conn, cursor_id, cursor_font->id, cursor_font->id,
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XCB_CURSOR_LEFT_PTR, XCB_CURSOR_LEFT_PTR + 1,
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0, 0, 0, 65535, 65535, 65535);
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}
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#endif
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uint32_t mask = 0;
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uint32_t values[3];
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mask |= XCB_CW_BACK_PIXEL;
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values[0] = 0;
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mask |= XCB_CW_OVERRIDE_REDIRECT;
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values[1] = 1;
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mask |= XCB_CW_EVENT_MASK;
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values[2] = XCB_EVENT_MASK_EXPOSURE;
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xcb_create_window(conn,
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XCB_COPY_FROM_PARENT,
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win, /* the window id */
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root, /* parent == root */
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50, 50, width, height, /* dimensions */
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0, /* border = 0, we draw our own */
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XCB_WINDOW_CLASS_INPUT_OUTPUT,
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XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */
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mask,
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values);
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#if 0
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if (cursor > -1)
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xcb_change_window_attributes(conn, result, XCB_CW_CURSOR, &cursor_id);
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#endif
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/* Map the window (= make it visible) */
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xcb_map_window(conn, win);
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return win;
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}
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/*
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* Returns the ID of the font matching the given pattern and stores the height
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* of the font (in pixels) in *font_height. die()s if no font matches.
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*
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*/
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int get_font_id(xcb_connection_t *conn, char *pattern, int *font_height) {
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xcb_void_cookie_t font_cookie;
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xcb_list_fonts_with_info_cookie_t info_cookie;
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/* Send all our requests first */
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int result;
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result = xcb_generate_id(conn);
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font_cookie = xcb_open_font_checked(conn, result, strlen(pattern), pattern);
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info_cookie = xcb_list_fonts_with_info(conn, 1, strlen(pattern), pattern);
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xcb_generic_error_t *error = xcb_request_check(conn, font_cookie);
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if (error != NULL) {
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fprintf(stderr, "ERROR: Could not open font: %d\n", error->error_code);
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exit(1);
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}
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/* Get information (height/name) for this font */
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xcb_list_fonts_with_info_reply_t *reply = xcb_list_fonts_with_info_reply(conn, info_cookie, NULL);
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if (reply == NULL)
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die("Could not load font \"%s\"\n", pattern);
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*font_height = reply->font_ascent + reply->font_descent;
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return result;
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}
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