/*
* (C) Copyright IBM Corp. 1998-2004. All Rights Reserved.
*
* The program is provided "as is" without any warranty express or
* implied, including the warranty of non-infringement and the implied
* warranties of merchantibility and fitness for a particular purpose.
* IBM will not be liable for any damages suffered by you as a result
* of using the Program. In no event will IBM be liable for any
* special, indirect or consequential damages or lost profits even if
* IBM has been advised of the possibility of their occurrence. IBM
* will not be liable for any third party claims against you.
*/
// Requires Java2
package com.ibm.richtext.textformat;
import com.ibm.richtext.textlayout.attributes.AttributeMap;
import com.ibm.richtext.textlayout.attributes.TextAttribute;
import com.ibm.richtext.textlayout.FontUtils;
import java.util.Hashtable;
import java.awt.Font;
final class FontResolver {
static final String COPYRIGHT =
"(C) Copyright IBM Corp. 1998-1999 - All Rights Reserved";
static {
// Even though it violates the Prime Directive I'll conditionalize
// this anyway, since it is just a 1.2 workaround which I greatly
// resent.
///*JDK12IMPORTS
java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment().getAllFonts();
//JDK12IMPORTS*/
}
private Hashtable styleMap;
private final AttributeMap fDefaultFontMap;
public FontResolver(AttributeMap defaults) {
styleMap = new Hashtable();
Hashtable tempMap = new Hashtable();
tempMap.put(TextAttribute.FAMILY, defaults.get(TextAttribute.FAMILY));
tempMap.put(TextAttribute.WEIGHT, defaults.get(TextAttribute.WEIGHT));
tempMap.put(TextAttribute.POSTURE, defaults.get(TextAttribute.POSTURE));
tempMap.put(TextAttribute.SIZE, defaults.get(TextAttribute.SIZE));
fDefaultFontMap = new AttributeMap(tempMap);
}
/**
* Fetch result of resolve(style) from cache, if present.
*/
public AttributeMap applyFont(AttributeMap style) {
Object cachedMap = styleMap.get(style);
if (cachedMap == null) {
AttributeMap resolvedMap = resolve(style);
styleMap.put(style, resolvedMap);
return resolvedMap;
}
else {
return (AttributeMap) cachedMap;
}
}
/**
* Return an AttributeMap containing a Font computed from the
* attributes in <tt>style</tt>.
*/
public AttributeMap resolve(AttributeMap style) {
if (style.get(TextAttribute.FONT) != null) {
return style;
}
Font font = FontUtils.getFont(fDefaultFontMap.addAttributes(style));
return style.addAttribute(TextAttribute.FONT, font);
}
}