toaruos/apps/font-preview.c

212 lines
5.2 KiB
C

/**
* @brief TrueType font previewer
*
* @copyright
* This file is part of ToaruOS and is released under the terms
* of the NCSA / University of Illinois License - see LICENSE.md
* Copyright (C) 2021 K. Lange
*/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <toaru/yutani.h>
#include <toaru/graphics.h>
#include <toaru/decorations.h>
#include <toaru/menu.h>
#include <toaru/text.h>
/* Pointer to graphics memory */
static yutani_t * yctx;
static yutani_window_t * window = NULL;
static gfx_context_t * ctx = NULL;
static struct TT_Font * tt_font = NULL;
static int decor_left_width = 0;
static int decor_top_height = 0;
static int decor_right_width = 0;
static int decor_bottom_height = 0;
static int decor_width = 0;
static int decor_height = 0;
static int width = 640;
static int height = 480;
char * tt_get_name_string(struct TT_Font * font, int identifier);
char * preview_string = "The quick brown fox jumps over the lazy dog.";
char * tt_font_name = NULL;
char window_title[1024] = "Font Preview";
void redraw(void) {
draw_fill(ctx, rgb(255,255,255));
int y = 10;
if (tt_font_name) {
tt_set_size(tt_font, 48);
y += 48;
tt_draw_string(ctx, tt_font, decor_left_width + 10, decor_top_height + y, tt_font_name, rgb(0,0,0));
y += 10;
}
tt_set_size(tt_font, 22);
y += 26;
tt_draw_string(ctx, tt_font, decor_left_width + 10, decor_top_height + y, "abcdefghijklmnopqrstuvwxyz", rgb(0,0,0));
y += 26;
tt_draw_string(ctx, tt_font, decor_left_width + 10, decor_top_height + y, "ABCDEFGHIJKLMNOPQRSTUVWXYZ", rgb(0,0,0));
y += 26;
tt_draw_string(ctx, tt_font, decor_left_width + 10, decor_top_height + y, "0123456789.:,;(*!?')", rgb(0,0,0));
y += 10;
int sizes[] = {7,10,13,16,19,22,25,48,64,92,0};
for (int * s = sizes; *s; ++s) {
tt_set_size(tt_font, *s);
y += *s + 4;
tt_draw_string(ctx, tt_font, decor_left_width + 10, decor_top_height + y, preview_string, rgb(0,0,0));
}
render_decorations(window, ctx, window_title);
flip(ctx);
}
void resize_finish(int w, int h) {
yutani_window_resize_accept(yctx, window, w, h);
reinit_graphics_yutani(ctx, window);
struct decor_bounds bounds;
decor_get_bounds(window, &bounds);
decor_left_width = bounds.left_width;
decor_top_height = bounds.top_height;
decor_right_width = bounds.right_width;
decor_bottom_height = bounds.bottom_height;
decor_width = bounds.width;
decor_height = bounds.height;
width = w - decor_left_width - decor_right_width;
height = h - decor_top_height - decor_bottom_height;
redraw();
yutani_window_resize_done(yctx, window);
yutani_flip(yctx, window);
}
int main(int argc, char * argv[]) {
if (argc < 2) {
fprintf(stderr, "usage: %s FONT\n", argv[0]);
return 1;
}
tt_font = tt_font_from_file(argv[1]);
if (!tt_font) {
fprintf(stderr, "%s: failed to load font\n", argv[0]);
return 1;
}
yctx = yutani_init();
if (!yctx) {
fprintf(stderr, "%s: failed to connect to compositor\n", argv[0]);
return 1;
}
init_decorations();
if (argc > 2) {
preview_string = argv[2];
} else {
char * maybe = tt_get_name_string(tt_font, 19);
if (maybe) preview_string = maybe;
}
struct decor_bounds bounds;
decor_get_bounds(NULL, &bounds);
decor_left_width = bounds.left_width;
decor_top_height = bounds.top_height;
decor_right_width = bounds.right_width;
decor_bottom_height = bounds.bottom_height;
decor_width = bounds.width;
decor_height = bounds.height;
window = yutani_window_create(yctx, width + decor_width, height + decor_height);
yutani_window_move(yctx, window, 100, 100);
tt_font_name = tt_get_name_string(tt_font, 4);
if (tt_font_name) {
sprintf(window_title, "%s - Font Preview", tt_font_name);
}
yutani_window_advertise_icon(yctx, window, window_title, "font");
ctx = init_graphics_yutani_double_buffer(window);
redraw();
yutani_flip(yctx, window);
int playing = 1;
while (playing) {
yutani_msg_t * m = yutani_poll(yctx);
while (m) {
if (menu_process_event(yctx, m)) {
redraw();
yutani_flip(yctx, window);
}
switch (m->type) {
case YUTANI_MSG_WINDOW_FOCUS_CHANGE:
{
struct yutani_msg_window_focus_change * wf = (void*)m->data;
yutani_window_t * win = hashmap_get(yctx->windows, (void*)(uintptr_t)wf->wid);
if (win && win == window) {
win->focused = wf->focused;
redraw();
yutani_flip(yctx, window);
}
}
break;
case YUTANI_MSG_RESIZE_OFFER:
{
struct yutani_msg_window_resize * wr = (void*)m->data;
resize_finish(wr->width, wr->height);
}
break;
case YUTANI_MSG_WINDOW_MOUSE_EVENT:
{
struct yutani_msg_window_mouse_event * me = (void*)m->data;
int result = decor_handle_event(yctx, m);
switch (result) {
case DECOR_CLOSE:
playing = 0;
break;
case DECOR_RIGHT:
/* right click in decoration, show appropriate menu */
decor_show_default_menu(window, window->x + me->new_x, window->y + me->new_y);
break;
default:
/* Other actions */
break;
}
}
break;
case YUTANI_MSG_WINDOW_CLOSE:
case YUTANI_MSG_SESSION_END:
playing = 0;
break;
default:
break;
}
free(m);
m = yutani_poll_async(yctx);
}
}
yutani_close(yctx, window);
return 0;
}