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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 java.awt.GraphicsEnvironment;
- import java.util.Arrays;
- import java.util.Map;
- import java.util.Set;
- import java.util.TreeSet;
-
- import org.apache.poi.common.usermodel.fonts.FontCharset;
- import org.apache.poi.common.usermodel.fonts.FontInfo;
- import org.apache.poi.sl.draw.Drawable.DrawableHint;
- import org.apache.poi.util.StringUtil;
-
- /**
- * Manages fonts when rendering slides.
- *
- * Use this class to handle unknown / missing fonts or to substitute fonts
- */
- public class DrawFontManagerDefault implements DrawFontManager {
-
- protected final Set<String> knownSymbolFonts = new TreeSet<>(String.CASE_INSENSITIVE_ORDER);
-
- public DrawFontManagerDefault() {
- knownSymbolFonts.add("Wingdings");
- knownSymbolFonts.add("Symbol");
- // knownSymbolFonts.add("Monotype Sorts");
- }
-
- @Override
- public FontInfo getMappedFont(Graphics2D graphics, FontInfo fontInfo) {
- return getFontWithFallback(graphics, Drawable.FONT_MAP, fontInfo);
- }
-
- @Override
- public FontInfo getFallbackFont(Graphics2D graphics, FontInfo fontInfo) {
- FontInfo fi = getFontWithFallback(graphics, Drawable.FONT_FALLBACK, fontInfo);
- if (fi == null) {
- fi = new DrawFontInfo(Font.SANS_SERIF);
- }
- return fi;
- }
-
- /**
- * Symbol fonts like "Wingdings" or "Symbol" have glyphs mapped to a Unicode private use range via the Java font loader,
- * although a system font viewer might show you the glyphs in the ASCII range.
- * This maps the chars of the text string to the corresponding private use range chars.
- *
- * @param graphics the used graphics context
- * @param fontInfo the font info
- * @param text the input string
- *
- * @return the mapped string, typically consists of chars in the range of 0xf000 to 0xf0ff
- *
- * @since POI 4.0.0
- */
- @Override
- public String mapFontCharset(Graphics2D graphics, FontInfo fontInfo, String text) {
- if (fontInfo == null || text == null || text.isEmpty()) {
- return text;
- }
-
- String typeface = fontInfo.getTypeface();
- if (fontInfo.getCharset() == FontCharset.SYMBOL || knownSymbolFonts.contains(typeface)) {
- int[] cps = text.codePoints().map(DrawFontManagerDefault::mapSymbolChar).toArray();
- String ret = new String(cps, 0, cps.length);
-
- String[] allFonts = GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
- boolean hasFont = Arrays.asList(allFonts).contains(typeface);
- return hasFont ? ret : StringUtil.mapMsCodepointString(ret);
- }
-
- return text;
- }
-
- @Override
- public Font createAWTFont(Graphics2D graphics, FontInfo fontInfo, double fontSize, boolean bold, boolean italic) {
- int style = (bold ? Font.BOLD : 0) | (italic ? Font.ITALIC : 0);
- Font font = new Font(fontInfo.getTypeface(), style, 12);
- if (Font.DIALOG.equals(font.getFamily())) {
- // SansSerif is a better choice than Dialog
- font = new Font(Font.SANS_SERIF, style, 12);
- }
- return font.deriveFont((float)fontSize);
- }
-
- private FontInfo getFontWithFallback(Graphics2D graphics, DrawableHint hint, FontInfo fontInfo) {
- @SuppressWarnings("unchecked")
- Map<String,String> fontMap = (Map<String,String>)graphics.getRenderingHint(hint);
- if (fontMap == null) {
- return fontInfo;
- }
-
- String f = (fontInfo != null) ? fontInfo.getTypeface() : null;
- String mappedTypeface = null;
- if (fontMap.containsKey(f)) {
- mappedTypeface = fontMap.get(f);
- } else if (fontMap.containsKey("*")) {
- mappedTypeface = fontMap.get("*");
- }
-
- return (mappedTypeface != null) ? new DrawFontInfo(mappedTypeface) : fontInfo;
- }
-
-
- private static int mapSymbolChar(int cp) {
- return ((0x20 <= cp && cp <= 0x7f) || (0xa0 <= cp && cp <= 0xff)) ? cp | 0xf000 : cp;
- }
- }
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