149 lines
3.2 KiB
C
149 lines
3.2 KiB
C
/* vim: tabstop=4 shiftwidth=4 noexpandtab
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* This file is part of ToaruOS and is released under the terms
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* of the NCSA / University of Illinois License - see LICENSE.md
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* Copyright (C) 2015 Kevin Lange
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*
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* Image Viewer
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <syscall.h>
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#include <signal.h>
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#include <errno.h>
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#include <sys/wait.h>
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#include "lib/yutani.h"
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#include "lib/graphics.h"
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#include "lib/decorations.h"
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#include "lib/trace.h"
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#define TRACE_APP_NAME "image-viewer"
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static yutani_t * yctx;
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static yutani_window_t * win;
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static gfx_context_t * ctx;
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static int should_exit = 0;
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static int center_x(int x) {
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return ((int)yctx->display_width - x) / 2;
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}
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static int center_y(int y) {
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return ((int)yctx->display_height - y) / 2;
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}
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static int center_win_x(int x) {
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return (win->width - x) / 2;
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}
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static sprite_t image;
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static char * file_name = NULL;
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static void draw_image(void) {
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draw_sprite(ctx, &image, decor_left_width, decor_top_height);
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}
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static void draw_checkerboard(void) {
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static uint32_t colors[2];
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colors[0] = rgb(128,128,128);
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colors[1] = rgb(200,200,200);
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for (int j = 0; j < image.height; j++) {
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for (int i = 0; i < image.width; i++) {
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int color = 0;
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if (i % 24 < 12) {
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color = (1 - color);
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}
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if (j % 24 < 12) {
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color = (1 - color);
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}
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GFX(ctx,(i+decor_left_width),(j+decor_top_height)) = colors[color];
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}
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}
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}
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static void redraw(void) {
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render_decorations(win, ctx, file_name);
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draw_checkerboard();
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draw_image();
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flip(ctx);
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yutani_flip(yctx, win);
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}
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int main(int argc, char * argv[]) {
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if (argc < 2) {
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fprintf(stderr, "Usage: %s image_file\n", argv[0]);
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return 1;
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}
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file_name = argv[1];
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load_sprite_png(&image, argv[1]);
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yctx = yutani_init();
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init_decorations();
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win = yutani_window_create(yctx, image.width + (int)decor_width(), image.height + decor_height());
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yutani_window_move(yctx, win, center_x(image.width + (int)decor_width()), center_y(image.height + decor_height()));
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ctx = init_graphics_yutani_double_buffer(win);
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yutani_window_advertise_icon(yctx, win, "Image Viewer", "image-viewer");
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redraw();
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yutani_focus_window(yctx, win->wid);
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while (!should_exit) {
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yutani_msg_t * m = yutani_poll(yctx);
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if (m) {
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switch (m->type) {
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case YUTANI_MSG_KEY_EVENT:
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{
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struct yutani_msg_key_event * ke = (void*)m->data;
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if (ke->event.key == 'q' && ke->event.action == KEY_ACTION_DOWN) {
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should_exit = 1;
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}
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}
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break;
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case YUTANI_MSG_WINDOW_FOCUS_CHANGE:
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{
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struct yutani_msg_window_focus_change * wf = (void*)m->data;
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if (wf->wid == win->wid) {
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win->focused = wf->focused;
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redraw();
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}
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}
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break;
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case YUTANI_MSG_WINDOW_MOUSE_EVENT:
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{
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struct yutani_msg_window_mouse_event * me = (void*)m->data;
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if (me->wid != win->wid) break;
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int result = decor_handle_event(yctx, m);
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switch (result) {
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case DECOR_CLOSE:
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should_exit = 1;
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break;
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default:
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/* Other actions */
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break;
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}
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}
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break;
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case YUTANI_MSG_SESSION_END:
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should_exit = 1;
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break;
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default:
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break;
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}
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free(m);
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}
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}
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return 0;
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}
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