toaruos/apps/background.c

99 lines
2.8 KiB
C

#include <stdio.h>
#include <unistd.h>
#include <sys/utsname.h>
#include <toaru/yutani.h>
#include <toaru/graphics.h>
#include <toaru/drawstring.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();
/* 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;
}