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/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.poi.sl.draw;
import java.awt.Font;
import java.awt.Graphics2D;
import org.apache.poi.common.usermodel.fonts.FontInfo;
import org.apache.poi.util.StringUtil;
/**
* Manages fonts when rendering slides.
*
* Use this class to handle unknown / missing fonts or to substitute fonts
*/
public interface DrawFontManager {
/**
* select a font to be used to paint text
*
* @param graphics the graphics context to request additional rendering hints
* @param fontInfo the font info object corresponding to the text run font
*
* @return the font to be used to paint text
*/
FontInfo getMappedFont(Graphics2D graphics, FontInfo fontInfo);
/**
* In case the original font doesn't contain a glyph, use the
* returned fallback font as an alternative
*
* @param graphics the graphics context to request additional rendering hints
* @param fontInfo the font info object corresponding to the text run font
*
* @return the font to be used as a fallback for the original typeface
*/
FontInfo getFallbackFont(Graphics2D graphics, FontInfo fontInfo);
/**
* Map text charset depending on font family.<p>
*
* Currently this only maps for wingdings font (into unicode private use area)
*
* @param graphics the graphics context to request additional rendering hints
* @param fontInfo the font info object corresponding to the text run font
* @param text the raw text
*
* @return String with mapped codepoints
*
* @see <a href="http://stackoverflow.com/questions/8692095">Drawing exotic fonts in a java applet</a>
* @see StringUtil#mapMsCodepointString(String)
*/
String mapFontCharset(Graphics2D graphics, FontInfo fontInfo, String text);
/**
* Create an AWT font object with the given attributes
*
* @param graphics the graphics context to request additional rendering hints
* @param fontInfo the font info object corresponding to the text run font
* @param size the font size in points
* @param bold {@code true} if the font is bold
* @param italic {@code true} if the font is italic
*
* @return the AWT font object
*/
Font createAWTFont(Graphics2D graphics, FontInfo fontInfo, double size, boolean bold, boolean italic);
}
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