toaruos/userspace/gui/core/wallpaper.c
2013-02-10 01:36:35 -08:00

183 lines
4.0 KiB
C

/* vim: tabstop=4 shiftwidth=4 noexpandtab
*
* Wallpaper renderer.
*
*/
#include <stdlib.h>
#include <assert.h>
#include <unistd.h>
#include <math.h>
#include "lib/window.h"
#include "lib/graphics.h"
#include "lib/shmemfonts.h"
sprite_t * sprites[128];
sprite_t alpha_tmp;
#define ICON_X 24
#define ICON_TOP_Y 40
#define ICON_SPACING_Y 74
#define ICON_WIDTH 48
uint16_t win_width;
uint16_t win_height;
gfx_context_t * ctx;
int center_x(int x) {
return (win_width - x) / 2;
}
int center_y(int y) {
return (win_height - y) / 2;
}
static int event_pipe;
typedef struct {
char * icon;
char * appname;
char * title;
} application_t;
application_t applications[] = {
{"/usr/share/icons/utilities-terminal.png", "terminal", "Terminal"},
{"/usr/share/icons/applications-painting.png", "draw", "Draw!"},
{"/usr/share/icons/applications-simulation.png", "game", "RPG Demo"},
{NULL, NULL, NULL}
};
volatile int _continue = 1;
void sig_int(int sig) {
printf("Received shutdown signal in wallpaper!\n");
_continue = 0;
char buf = '1';
write(event_pipe, &buf, 1);
}
void launch_application(char * app) {
if (!fork()) {
char name[512];
sprintf(name, "/bin/%s", app);
printf("Starting %s\n", name);
char * args[] = {name, NULL};
execvp(args[0], args);
exit(1);
}
}
char * next_run_activate = NULL;
void wallpaper_check_click(w_mouse_t * evt) {
if (evt->command == WE_MOUSECLICK) {
printf("Click!\n");
if (evt->new_x > ICON_X && evt->new_x < ICON_X + ICON_WIDTH) {
uint32_t i = 0;
while (1) {
if (!applications[i].icon) {
break;
}
if ((evt->new_y > ICON_TOP_Y + ICON_SPACING_Y * i) &&
(evt->new_y < ICON_TOP_Y + ICON_SPACING_Y + ICON_SPACING_Y * i)) {
printf("Launching application \"%s\"...\n", applications[i].title);
next_run_activate = applications[i].appname;
char buf = '1';
write(event_pipe, &buf, 1);
}
++i;
}
/* Within the icon range */
}
}
}
void init_sprite_png(int i, char * filename) {
sprites[i] = malloc(sizeof(sprite_t));
load_sprite_png(sprites[i], filename);
}
int main (int argc, char ** argv) {
setup_windowing();
int width = wins_globals->server_width;
int height = wins_globals->server_height;
win_width = width;
win_height = height;
event_pipe = syscall_mkpipe();
/* Do something with a window */
window_t * wina = window_create(0,0, width, height);
assert(wina);
window_reorder (wina, 0);
ctx = init_graphics_window_double_buffer(wina);
draw_fill(ctx, rgb(127,127,127));
flip(ctx);
syscall_signal(2, sig_int);
char f_name[512];
sprintf(f_name, "%s/.wallpaper.png", getenv("HOME"));
FILE * f = fopen(f_name, "r");
if (f) {
fclose(f);
init_sprite_png(0, f_name);
} else {
init_sprite_png(0, "/usr/share/wallpaper.png");
}
float x = (float)width / (float)sprites[0]->width;
float y = (float)height / (float)sprites[0]->height;
int nh = (int)(x * (float)sprites[0]->height);
int nw = (int)(y * (float)sprites[0]->width);;
if (nw > width) {
draw_sprite_scaled(ctx, sprites[0], (width - nw) / 2, 0, nw, height);
} else {
draw_sprite_scaled(ctx, sprites[0], 0, (height - nh) / 2, width, nh);
}
flip(ctx);
init_shmemfonts();
/* Load Application Shortcuts */
uint32_t i = 0;
while (1) {
if (!applications[i].icon) {
break;
}
printf("Loading png %s\n", applications[i].icon);
init_sprite_png(i+1, applications[i].icon);
draw_sprite(ctx, sprites[i+1], ICON_X, ICON_TOP_Y + ICON_SPACING_Y * i);
int str_w = draw_string_width(applications[i].title) / 2;
int str_x = ICON_X + ICON_WIDTH / 2 - str_w;
int str_y = ICON_TOP_Y + ICON_SPACING_Y * i + ICON_WIDTH + 14;
draw_string_shadow(ctx, str_x, str_y, rgb(255,255,255), applications[i].title, rgb(0,0,0), 2, 1, 1, 3.0);
++i;
}
flip(ctx);
/* Enable mouse */
win_use_threaded_handler();
mouse_action_callback = wallpaper_check_click;
while (_continue) {
char buf;
read(event_pipe, &buf, 1);
if (next_run_activate) {
launch_application(next_run_activate);
next_run_activate = NULL;
}
}
teardown_windowing();
return 0;
}