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/*
* This file is part of OneConfig.
* OneConfig - Next Generation Config Library for Minecraft: Java Edition
* Copyright (C) 2021, 2022 Polyfrost.
* <https://polyfrost.cc> <https://github.com/Polyfrost/>
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* OneConfig is licensed under the terms of version 3 of the GNU Lesser
* General Public License as published by the Free Software Foundation, AND
* under the Additional Terms Applicable to OneConfig, as published by Polyfrost,
* either version 1.0 of the Additional Terms, or (at your option) any later
* version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License. If not, see <https://www.gnu.org/licenses/>. You should
* have also received a copy of the Additional Terms Applicable
* to OneConfig, as published by Polyfrost. If not, see
* <https://polyfrost.cc/legal/oneconfig/additional-terms>
*/
package cc.polyfrost.oneconfig.renderer.font;
import cc.polyfrost.oneconfig.utils.IOUtils;
import java.io.IOException;
import java.lang.reflect.Field;
import java.nio.ByteBuffer;
import static org.lwjgl.nanovg.NanoVG.nvgCreateFontMem;
public class FontManager {
public static FontManager INSTANCE = new FontManager();
/**
* Load all fonts in the Fonts class
*
* @param vg NanoVG context
*/
public void initialize(long vg) {
for (Field field : Fonts.class.getDeclaredFields()) {
try {
field.setAccessible(true);
Object font = field.get(null);
if (!(font instanceof Font)) continue;
loadFont(vg, (Font) font);
} catch (Exception e) {
throw new RuntimeException("Could not initialize fonts");
}
}
}
/**
* Load a font into NanoVG
*
* @param vg NanoVG context
* @param font The font to be loaded
*/
public void loadFont(long vg, Font font) {
if (font.isLoaded()) return;
int loaded = -1;
try {
ByteBuffer buffer = IOUtils.resourceToByteBuffer(font.getFileName());
loaded = nvgCreateFontMem(vg, font.getName(), buffer, 0);
font.setBuffer(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if (loaded == -1) {
throw new RuntimeException("Failed to initialize font " + font.getName());
} else {
font.setLoaded(true);
}
}
}
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