1/* Copyright (c) 2013-2015 Jeffrey Pfau
 2 *
 3 * This Source Code Form is subject to the terms of the Mozilla Public
 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 6#include "util/gui/font.h"
 7
 8#include <vita2d.h>
 9
10#define GLYPH_HEIGHT 11
11#define GLYPH_WIDTH 14
12#define FONT_TRACKING 10
13#define CELL_HEIGHT 16
14#define CELL_WIDTH 16
15
16extern const uint8_t _binary_font_png_start[];
17
18struct GUIFont {
19	vita2d_texture* tex;
20};
21
22struct GUIFont* GUIFontCreate(void) {
23	struct GUIFont* font = malloc(sizeof(struct GUIFont));
24	if (!font) {
25		return 0;
26	}
27	font->tex = vita2d_load_PNG_buffer(_binary_font_png_start);
28	return font;
29}
30
31void GUIFontDestroy(struct GUIFont* font) {
32	vita2d_free_texture(font->tex);
33	free(font);
34}
35
36int GUIFontHeight(const struct GUIFont* font) {
37	UNUSED(font);
38	return GLYPH_HEIGHT;
39}
40
41void GUIFontPrintf(const struct GUIFont* font, int x, int y, enum GUITextAlignment align, uint32_t color, const char* text, ...) {
42	UNUSED(align); // TODO
43	char buffer[256];
44	va_list args;
45	va_start(args, text);
46	int len = vsnprintf(buffer, sizeof(buffer), text, args);
47	va_end(args);
48	int i;
49	for (i = 0; i < len; ++i) {
50		char c = buffer[i];
51		if (c > 0x7F) {
52			c = 0;
53		}
54		vita2d_draw_texture_tint_part(font->tex, x, y - GLYPH_HEIGHT,
55			                          (c & 15) * CELL_WIDTH + ((CELL_WIDTH - GLYPH_WIDTH) >> 1),
56			                          (c >> 4) * CELL_HEIGHT + ((CELL_HEIGHT - GLYPH_HEIGHT) >> 1),
57			                          GLYPH_WIDTH, GLYPH_HEIGHT, color);
58		x += FONT_TRACKING;
59	}
60}