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- /* vim: tabstop=4 shiftwidth=4 noexpandtab
- * This file is part of ToaruOS and is released under the terms
- * of the NCSA / University of Illinois License - see LICENSE.md
- * Copyright (C) 2018 K. Lange
- *
- * background - Draw a desktop wallpaper.
- *
- * TODO: This is a very minimal wallpaper renderer.
- * ToaruOS-mainline, before it went all Python,
- * included a more complete wallpaper application,
- * which supported icons and config files.
- */
- #include <stdio.h>
- #include <unistd.h>
- #include <sys/utsname.h>
- #include <toaru/yutani.h>
- #include <toaru/graphics.h>
- static yutani_t * yctx;
- static yutani_window_t * wallpaper_window;
- static gfx_context_t * wallpaper_ctx;
- static sprite_t * wallpaper;
- static void draw_background(int width, int height) {
- float x = (float)wallpaper_window->width / (float)wallpaper->width;
- float y = (float)wallpaper_window->height / (float)wallpaper->height;
- int nh = (int)(x * (float)wallpaper->height);
- int nw = (int)(y * (float)wallpaper->width);
- if (nw == wallpaper->width && nh == wallpaper->height) {
- // special case
- draw_sprite(wallpaper_ctx, wallpaper, 0, 0);
- } else if (nw >= width) {
- draw_sprite_scaled(wallpaper_ctx, wallpaper, ((int)wallpaper_window->width - nw) / 2, 0, nw+2, wallpaper_window->height);
- } else {
- draw_sprite_scaled(wallpaper_ctx, wallpaper, 0, ((int)wallpaper_window->height - nh) / 2, wallpaper_window->width+2, nh);
- }
- }
- static void resize_finish_wallpaper(int width, int height) {
- yutani_window_resize_accept(yctx, wallpaper_window, width, height);
- reinit_graphics_yutani(wallpaper_ctx, wallpaper_window);
- draw_background(width, height);
- yutani_window_resize_done(yctx, wallpaper_window);
- yutani_flip(yctx, wallpaper_window);
- }
- int main (int argc, char ** argv) {
- if (argc < 2 || strcmp(argv[1],"--really")) {
- fprintf(stderr,
- "%s: Desktop environment wallpaper\n"
- "\n"
- " Renders the desktop wallpaper. You probably don't want\n"
- " to be running this directly - it is started by the\n"
- " session manager along with the panel.\n", argv[0]);
- return 1;
- }
- wallpaper = malloc(sizeof(sprite_t));
- load_sprite(wallpaper, "/usr/share/wallpaper.bmp");
- wallpaper->alpha = 0;
- yctx = yutani_init();
- if (!yctx) {
- fprintf(stderr, "%s: failed to connect to compositor\n", argv[0]);
- return 1;
- }
- /* wallpaper */
- wallpaper_window = yutani_window_create(yctx, yctx->display_width, yctx->display_height);
- yutani_window_move(yctx, wallpaper_window, 0, 0);
- yutani_set_stack(yctx, wallpaper_window, YUTANI_ZORDER_BOTTOM);
- wallpaper_ctx = init_graphics_yutani(wallpaper_window);
- draw_background(yctx->display_width, yctx->display_height);
- yutani_flip(yctx, wallpaper_window);
- int should_exit = 0;
- while (!should_exit) {
- yutani_msg_t * m = yutani_poll(yctx);
- if (m) {
- switch (m->type) {
- case YUTANI_MSG_WELCOME:
- yutani_window_resize_offer(yctx, wallpaper_window, yctx->display_width, yctx->display_height);
- break;
- case YUTANI_MSG_RESIZE_OFFER:
- {
- struct yutani_msg_window_resize * wr = (void*)m->data;
- if (wr->wid == wallpaper_window->wid) {
- resize_finish_wallpaper(wr->width, wr->height);
- }
- }
- break;
- case YUTANI_MSG_SESSION_END:
- should_exit = 1;
- break;
- default:
- break;
- }
- }
- free(m);
- }
- yutani_close(yctx, wallpaper_window);
- return 0;
- }
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