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/*
* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.layout;
import java.util.HashMap;
import org.apache.fop.messaging.MessageHandler;
import java.util.Enumeration;
import org.apache.fop.apps.FOPException;
public class FontInfo {
HashMap usedFonts;
HashMap triplets; // look up a font-triplet to find a font-name
HashMap fonts; // look up a font-name to get a font (that implements FontMetric at least)
public FontInfo() {
this.triplets = new HashMap();
this.fonts = new HashMap();
this.usedFonts = new HashMap();
}
public void addFontProperties(String name, String family, String style,
String weight) {
/*
* add the given family, style and weight as a lookup for the font
* with the given name
*/
String key = createFontKey(family, style, weight);
this.triplets.put(key, name);
}
public void addMetrics(String name, FontMetric metrics) {
// add the given metrics as a font with the given name
this.fonts.put(name, metrics);
}
public String fontLookup(String family, String style,
String weight) throws FOPException {
return fontLookup(createFontKey(family, style, weight));
}
public String fontLookup(String key) throws FOPException {
String f = (String)this.triplets.get(key);
if (f == null) {
int i = key.indexOf(',');
String s = "any" + key.substring(i);
f = (String)this.triplets.get(s);
if (f == null) {
f = (String)this.triplets.get("any,normal,normal");
if (f == null) {
throw new FOPException("no default font defined by OutputConverter");
}
MessageHandler.errorln("defaulted font to any,normal,normal");
}
MessageHandler.errorln("unknown font " + key
+ " so defaulted font to any");
}
usedFonts.put(f, fonts.get(f));
return f;
}
public boolean hasFont(String family, String style, String weight) {
String key = createFontKey(family, style, weight);
return this.triplets.get(key) != null;
}
/**
* Creates a key from the given strings
*/
public static String createFontKey(String family, String style,
String weight) {
int i;
try {
i = Integer.parseInt(weight);
} catch (NumberFormatException e) {
i = 0;
}
if (i > 600)
weight = "bold";
else if (i > 0)
weight = "normal";
return family + "," + style + "," + weight;
}
public HashMap getFonts() {
return this.fonts;
}
public HashMap getUsedFonts() {
return this.usedFonts;
}
public FontMetric getMetricsFor(String fontName) throws FOPException {
usedFonts.put(fontName, fonts.get(fontName));
return (FontMetric)fonts.get(fontName);
}
}
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