2 * X11 GUI for slide puzzle game
3 * Copyright © 2022 Nick Bowler
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <https://www.gnu.org/licenses/>.
19 #ifndef RRACE_MOTIF_H_
20 #define RRACE_MOTIF_H_
25 enum { COLOUR_PRIMARY, COLOUR_DARK, COLOUR_LIGHT, COLOUR_MAX };
32 /* Whether to set _NET_WM_ICON property on WMShell */
37 uint_least32_t tile_colour[TILE_MAX-1][3];
40 void ui_initialize(struct app_state *state, Widget shell);
41 void x11_initialize(struct app_state *state, Screen *screen);
42 void x11_redraw_icon(struct app_state *state, Widget shell);
43 void x11_redraw_goal(struct app_state *state);
44 void x11_redraw_game(struct app_state *state);
47 * Helpers for drawing window icons in various sizes. The tileXX functions
48 * draw one (out of 9) tiles at a particular size using a particular colour
49 * set. Call for each tile position to draw a complete icon.
52 enum { ICON_16x16, ICON_24x24, ICON_32x32, ICON_48x48, ICON_MAX };
53 #define EWMH_ICON_NELEM (2+16*16 + 2+24*24 + 2+32*32 + 2+48*48)
55 void ewmh_tile16(unsigned long *icon, const XColor *c, int tile_x, int tile_y);
56 void ewmh_tile24(unsigned long *icon, const XColor *c, int tile_x, int tile_y);
57 void ewmh_tile32(unsigned long *icon, const XColor *c, int tile_x, int tile_y);
58 void ewmh_tile48(unsigned long *icon, const XColor *c, int tile_x, int tile_y);
61 * Allocate storage for the EWMH _NET_WM_ICON array. The sizes array is
62 * populated with pointers to the beginning of each icon's pixel data. For
63 * example, sizes[ICON_24x24] points to the first pixel of the 24x24 image.
65 * The returned value can then be passed to XChangeProperty to set the icon,
66 * (use EWMH_ICON_NELEM for the number of elements) and must be freed by the
69 void *ewmh_icon_alloc(unsigned long **sizes);
72 * Check if the root window indicates support for EWMH icons. Returns 1 if
73 * supported, or 0 otherwise.
75 int ewmh_probe_wm_icon(Widget shell);