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
 8unsigned GUIFontSpanWidth(const struct GUIFont* font, const char* text) {
 9	unsigned width = 0;
10	size_t i;
11	for (i = 0; text[i]; ++i) {
12		char c = text[i];
13		width += GUIFontGlyphWidth(font, c);
14	}
15	return width;
16}
17
18void GUIFontPrint(const struct GUIFont* font, int x, int y, enum GUITextAlignment align, uint32_t color, const char* text) {
19	switch (align) {
20	case GUI_TEXT_CENTER:
21		x -= GUIFontSpanWidth(font, text) / 2;
22		break;
23	case GUI_TEXT_RIGHT:
24		x -= GUIFontSpanWidth(font, text);
25		break;
26	default:
27		break;
28	}
29	size_t len = strlen(text);
30	while (len) {
31		uint32_t c = utf8Char(&text, &len);
32		GUIFontDrawGlyph(font, x, y, color, c);
33		x += GUIFontGlyphWidth(font, c);
34	}
35}
36
37void GUIFontPrintf(const struct GUIFont* font, int x, int y, enum GUITextAlignment align, uint32_t color, const char* text, ...) {
38	char buffer[256];
39	va_list args;
40	va_start(args, text);
41	vsnprintf(buffer, sizeof(buffer), text, args);
42	va_end(args);
43	GUIFontPrint(font, x, y, align, color, buffer);
44}