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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.util.Map;
import org.apache.poi.common.usermodel.fonts.FontInfo;
import org.apache.poi.sl.draw.Drawable.DrawableHint;
/**
* Manages fonts when rendering slides.
*
* Use this class to handle unknown / missing fonts or to substitute fonts
*/
public class DrawFontManagerDefault implements DrawFontManager {
@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;
}
public String mapFontCharset(Graphics2D graphics, FontInfo fontInfo, String text) {
// TODO: find a real charset mapping solution instead of hard coding for Wingdings
String attStr = text;
if (fontInfo != null && "Wingdings".equalsIgnoreCase(fontInfo.getTypeface())) {
// wingdings doesn't contain high-surrogates, so chars are ok
boolean changed = false;
char chrs[] = attStr.toCharArray();
for (int i=0; i<chrs.length; i++) {
// only change valid chars
if ((0x20 <= chrs[i] && chrs[i] <= 0x7f) ||
(0xa0 <= chrs[i] && chrs[i] <= 0xff)) {
chrs[i] |= 0xf000;
changed = true;
}
}
if (changed) {
attStr = new String(chrs);
}
}
return attStr;
}
@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;
}
}
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