| /* |
| * ==================================================================== |
| * 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 and symbol font (into unicode private use area) |
| * <p> |
| * Depending if the requested font is installed in the system, tbe mapped string varies:<br> |
| * If the font is registered into the graphics environment the characters are mapped to the |
| * private use area. If the font is missing (and hence a AWT logical font is used), the |
| * characters are mapped to the corresponding unicode characters |
| * |
| * @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); |
| } |