org.dromara.hutool.swing.img.FontUtil Maven / Gradle / Ivy
/*
* Copyright (c) 2013-2024 Hutool Team and hutool.cn
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.dromara.hutool.swing.img;
import org.dromara.hutool.core.exception.ExceptionUtil;
import org.dromara.hutool.core.io.IORuntimeException;
import java.awt.*;
import java.awt.font.FontRenderContext;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
/**
* AWT中字体相关工具类
*
* @author looly
* @since 5.3.6
*/
public class FontUtil {
/**
* 获得系统中支持的所有字体
*
* @return 字体数组
*/
public static Font[] getAllFonts() {
final GraphicsEnvironment e = GraphicsEnvironment.getLocalGraphicsEnvironment();
return e.getAllFonts();
}
/**
* 创建默认字体
*
* @return 默认字体
*/
public static Font createFont() {
return new Font(null);
}
/**
* 创建SansSerif字体
*
* @param size 字体大小
* @return 字体
*/
public static Font createSansSerifFont(final int size) {
return createFont(Font.SANS_SERIF, size);
}
/**
* 创建指定名称的字体
*
* @param name 字体名称
* @param size 字体大小
* @return 字体
*/
public static Font createFont(final String name, final int size) {
return new Font(name, Font.PLAIN, size);
}
/**
* 根据文件创建字体
* 首先尝试创建{@link Font#TRUETYPE_FONT}字体，此类字体无效则创建{@link Font#TYPE1_FONT}
*
* @param fontFile 字体文件
* @return {@link Font}
*/
public static Font createFont(final File fontFile) {
try {
return Font.createFont(Font.TRUETYPE_FONT, fontFile);
} catch (final FontFormatException e) {
// True Type字体无效时使用Type1字体
try {
return Font.createFont(Font.TYPE1_FONT, fontFile);
} catch (final Exception e1) {
throw ExceptionUtil.wrapRuntime(e);
}
} catch (final IOException e) {
throw new IORuntimeException(e);
}
}
/**
* 根据文件创建字体
* 首先尝试创建{@link Font#TRUETYPE_FONT}字体，此类字体无效则创建{@link Font#TYPE1_FONT}
*
* @param fontStream 字体流
* @return {@link Font}
*/
public static Font createFont(final InputStream fontStream) {
try {
return Font.createFont(Font.TRUETYPE_FONT, fontStream);
} catch (final FontFormatException e) {
// True Type字体无效时使用Type1字体
try {
return Font.createFont(Font.TYPE1_FONT, fontStream);
} catch (final Exception e1) {
throw ExceptionUtil.wrapRuntime(e1);
}
} catch (final IOException e) {
throw new IORuntimeException(e);
}
}
/**
* 获得字体对应字符串的长宽信息
*
* @param metrics {@link FontMetrics}
* @param str 字符串
* @return 长宽信息
*/
public static Dimension getDimension(final FontMetrics metrics, final String str) {
final int width = metrics.stringWidth(str);
final int height = metrics.getAscent() - metrics.getLeading() - metrics.getDescent();
return new Dimension(width, height);
}
/**
* 获取font的样式应用在str上的整个矩形
*
* @param str 字符串，必须非空
* @param font 字体，必须非空
* @return {@link Rectangle2D}
* @since 5.3.3
*/
public static Rectangle2D getRectangle(final String str, final Font font) {
return font.getStringBounds(str,
new FontRenderContext(AffineTransform.getScaleInstance(1, 1),
false,
false));
}
}