133 lines
3.3 KiB
C
133 lines
3.3 KiB
C
/* 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) 2013-2018 K. Lange
|
|
*
|
|
* drawlines - Draw random lines into a GUI window
|
|
*
|
|
* The original compositor demo application, this dates all the
|
|
* way back to the original pre-Yutani compositor. Opens a very
|
|
* basic window (no decorations) and randomly fills it with
|
|
* colorful lines in a separate thread from the listener.
|
|
*
|
|
* There's no good reason for this to use threads - it should use
|
|
* `fswait2` to apply timeouts - but it demonstrates threading
|
|
* so we'll leave it that way for now.
|
|
*/
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
#include <unistd.h>
|
|
#include <time.h>
|
|
#include <sched.h>
|
|
#include <math.h>
|
|
|
|
#include <sys/fswait.h>
|
|
|
|
#include <toaru/yutani.h>
|
|
#include <toaru/graphics.h>
|
|
|
|
static int left, top, width, height;
|
|
|
|
static yutani_t * yctx;
|
|
static yutani_window_t * wina;
|
|
static gfx_context_t * ctx;
|
|
static int should_exit = 0;
|
|
static int thick = 0;
|
|
|
|
static void draw(void) {
|
|
if (thick) {
|
|
draw_line_aa(ctx, rand() % width, rand() % width, rand() % height, rand() % height, rgb(rand() % 255,rand() % 255,rand() % 255), (float)thick);
|
|
} else {
|
|
draw_line(ctx, rand() % width, rand() % width, rand() % height, rand() % height, rgb(rand() % 255,rand() % 255,rand() % 255));
|
|
}
|
|
yutani_flip(yctx, wina);
|
|
}
|
|
|
|
static void show_usage(char * argv[]) {
|
|
printf(
|
|
"drawlines - graphical demo, draws lines randomly\n"
|
|
"\n"
|
|
"usage: %s [-t thickness]\n"
|
|
"\n"
|
|
" -t \033[3mdraw with anti-aliasing and the specified thickness\033[0m\n"
|
|
" -? \033[3mshow this help text\033[0m\n"
|
|
"\n", argv[0]);
|
|
}
|
|
|
|
|
|
int main (int argc, char ** argv) {
|
|
left = 100;
|
|
top = 100;
|
|
width = 500;
|
|
height = 500;
|
|
|
|
srand(time(NULL));
|
|
|
|
int c;
|
|
while ((c = getopt(argc, argv, "t:?")) != -1) {
|
|
switch (c) {
|
|
case 't':
|
|
thick = atoi(optarg);
|
|
break;
|
|
case '?':
|
|
show_usage(argv);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
yctx = yutani_init();
|
|
if (!yctx) {
|
|
fprintf(stderr, "%s: failed to connect to compositor\n", argv[0]);
|
|
return 1;
|
|
}
|
|
|
|
wina = yutani_window_create(yctx, width, height);
|
|
yutani_window_move(yctx, wina, left, top);
|
|
yutani_window_advertise_icon(yctx, wina, "drawlines", "drawlines");
|
|
|
|
ctx = init_graphics_yutani(wina);
|
|
draw_fill(ctx, rgb(0,0,0));
|
|
|
|
while (!should_exit) {
|
|
int fds[1] = {fileno(yctx->sock)};
|
|
int index = fswait2(1,fds,20);
|
|
if (index == 0) {
|
|
yutani_msg_t * m = yutani_poll(yctx);
|
|
while (m) {
|
|
switch (m->type) {
|
|
case YUTANI_MSG_KEY_EVENT:
|
|
{
|
|
struct yutani_msg_key_event * ke = (void*)m->data;
|
|
if (ke->event.action == KEY_ACTION_DOWN && ke->event.keycode == 'q') {
|
|
should_exit = 1;
|
|
sched_yield();
|
|
}
|
|
}
|
|
break;
|
|
case YUTANI_MSG_WINDOW_MOUSE_EVENT:
|
|
{
|
|
struct yutani_msg_window_mouse_event * me = (void*)m->data;
|
|
if (me->command == YUTANI_MOUSE_EVENT_DOWN && me->buttons & YUTANI_MOUSE_BUTTON_LEFT) {
|
|
yutani_window_drag_start(yctx, wina);
|
|
}
|
|
}
|
|
break;
|
|
case YUTANI_MSG_WINDOW_CLOSE:
|
|
case YUTANI_MSG_SESSION_END:
|
|
should_exit = 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
free(m);
|
|
m = yutani_poll_async(yctx);
|
|
}
|
|
}
|
|
draw();
|
|
}
|
|
|
|
yutani_close(yctx, wina);
|
|
|
|
return 0;
|
|
}
|