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FreeHEP (Encapsulated) PostScript Driver
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// Copyright 2001-2005, FreeHEP.
package org.freehep.graphicsio.ps;
import java.awt.Font;
import java.awt.font.FontRenderContext;
import java.awt.font.TextAttribute;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.text.AttributedCharacterIterator.Attribute;
import java.util.HashSet;
import java.util.Map;
import java.util.Properties;
import org.freehep.graphics2d.font.CharTable;
import org.freehep.graphics2d.font.FontUtilities;
import org.freehep.graphics2d.font.Lookup;
import org.freehep.graphicsio.FontConstants;
import org.freehep.graphicsio.font.FontEmbedderType1;
import org.freehep.graphicsio.font.FontIncluder;
import org.freehep.graphicsio.font.FontTable;
/**
* FontTable for PS files. The fonts name is used as a reference for the font.
* When the font is first used, it is embedded to the file if it is not a
* standard font. If it is unknown it is not substituted.
*
* @author Simon Fischer
* @version $Id: freehep-graphicsio-ps/src/main/java/org/freehep/graphicsio/ps/PSFontTable.java 59372df5e0d9 2007/02/06 21:11:19 duns $
*/
public class PSFontTable extends FontTable {
private OutputStream out;
private FontRenderContext context;
public PSFontTable(OutputStream out, FontRenderContext context) {
super();
this.out = out;
this.context = context;
}
public CharTable getEncodingTable() {
return Lookup.getInstance().getTable("STDLatin");
}
protected void firstRequest(Entry e, boolean embed, String embedAs)
throws IOException {
FontIncluder fontIncluder = null;
e.setWritten(true);
// There are NO standard fonts in PS.
// if (isStandardFont(e.getFont())) return;
out.flush();
if (embed) {
if (embedAs.equals(FontConstants.EMBED_FONTS_TYPE3)) {
fontIncluder = new PSFontEmbedder(context, new PrintStream(out));
} else if (embedAs.equals(FontConstants.EMBED_FONTS_TYPE1)) {
fontIncluder = new FontEmbedderType1(context, out, true);
} else {
System.err
.println("PSFontTable: not a valid value for embedAs: "
+ embedAs);
}
} else {
// FIXME: set the best standard font
// e.setReference(standardfontName)
return;
}
fontIncluder
.includeFont(e.getFont(), e.getEncoding(), e.getReference());
out.flush();
}
/**
* Java font names -> PS Font names, used by {@link #normalize(java.util.Map)}
*/
private static final Properties replaceFonts = new Properties();
static {
replaceFonts.setProperty("timesroman", "Times");
replaceFonts.setProperty("dialog", "Helvetica");
replaceFonts.setProperty("dialoginput", "Courier-New");
// FIXME: works well on windows, others?
replaceFonts.setProperty("serif", "Times");
replaceFonts.setProperty("sansserif", "Helvetica");
// FIXME: works well on windows, others?
replaceFonts.setProperty("monospaced", "Courier-New");
replaceFonts.setProperty("typewriter", "Courier-New");
}
/**
* fonts that have no TextAttribute.WEIGHT and TextAttribute.POSTURE,
* used by {@link #createFontReference(java.awt.Font)}
*/
private static final HashSet ignoreAtributes = new HashSet();
static {
ignoreAtributes.add("Symbol");
ignoreAtributes.add("ZapfDingbats");
}
/**
* removes any transformation and superscript, changes the names
* to PS font name
*
* @param font
* @return derived font
*/
@SuppressWarnings( "unchecked" )
protected Font substituteFont(Font font) {
Map attributes = FontUtilities.getAttributes(font);
// change names
// normalize(attributes);
// remove transformations
attributes.remove(TextAttribute.TRANSFORM);
attributes.remove(TextAttribute.SUPERSCRIPT);
return new Font((Map) attributes);
}
/**
* Uses the font name as a reference. Whitespace is stripped. The font style
* (italic/bold) is added as a suffix delimited by a dash.
* Uses {@link #normalize(java.util.Map)}
*/
protected String createFontReference(Font font) {
Map /**/ attributes = FontUtilities.getAttributes(font);
normalize(attributes);
// replace the name
StringBuffer result = new StringBuffer();
// insert family at the end because oft the "-" between
// name and TextAttribute
String family = (String) attributes.get(TextAttribute.FAMILY);
// weight
Object weight = ignoreAtributes.contains(family) ?
null : attributes.get(TextAttribute.WEIGHT);
if (TextAttribute.WEIGHT_BOLD.equals(weight)) {
result.append("Bold");
} else if (TextAttribute.WEIGHT_DEMIBOLD.equals(weight)) {
result.append("DemiBold");
} else if (TextAttribute.WEIGHT_DEMILIGHT.equals(weight)) {
result.append("DemiLight");
} else if (TextAttribute.WEIGHT_EXTRA_LIGHT.equals(weight)) {
result.append("ExtraLight");
} else if (TextAttribute.WEIGHT_EXTRABOLD.equals(weight)) {
result.append("ExtraBold");
} else if (TextAttribute.WEIGHT_HEAVY.equals(weight)) {
result.append("Heavy");
} else if (TextAttribute.WEIGHT_LIGHT.equals(weight)) {
result.append("Light");
} else if (TextAttribute.WEIGHT_MEDIUM.equals(weight)) {
result.append("Medium");
} else if (TextAttribute.WEIGHT_REGULAR.equals(weight)) {
// result.append("WRegular");
} else if (TextAttribute.WEIGHT_SEMIBOLD.equals(weight)) {
result.append("SemiBold");
} else if (TextAttribute.WEIGHT_ULTRABOLD.equals(weight)) {
result.append("UltraBold");
}
// italic
Object posture = ignoreAtributes.contains(family) ?
null : attributes.get(TextAttribute.POSTURE);
if (TextAttribute.POSTURE_OBLIQUE.equals(posture)) {
if (family.equals("Times")) {
result.append("Italic");
} else {
result.append("Oblique");
}
} else if (TextAttribute.POSTURE_REGULAR.equals(posture)) {
// result.append("IRegular");
}
// Times -> Times-Roman
if (family.equals("Times") && result.length() == 0) {
result.append("Roman");
}
// underline is not a specific font
// Object ul = font.getAttributes().get(TextAttribute.UNDERLINE);
// if (TextAttribute.UNDERLINE_LOW_DASHED.equals(ul)) {
// result.append("UnderlineLowDashed");
// } else if (TextAttribute.UNDERLINE_LOW_DOTTED.equals(ul)) {
// result.append("UnderlineLowDotted");
// } else if (TextAttribute.UNDERLINE_LOW_GRAY.equals(ul)) {
// result.append("UnderlineLowGray");
// } else if (TextAttribute.UNDERLINE_LOW_ONE_PIXEL.equals(ul)) {
// result.append("UnderlineLowOnePixel");
// } else if (TextAttribute.UNDERLINE_ON.equals(ul)) {
// result.append("Underline");
// }
// strike through is not a specific font
// if (font.getAttributes().get(TextAttribute.STRIKETHROUGH) != null) {
// result.append("StrikeThrough");
// }
// width is not a specific font
// Object width = font.getAttributes().get(TextAttribute.WIDTH);
// if (TextAttribute.WIDTH_CONDENSED.equals(width)) {
// result.append("Condensed");
// } else if (TextAttribute.WIDTH_EXTENDED.equals(width)) {
// result.append("Extended");
// } else if (TextAttribute.WIDTH_REGULAR.equals(width)) {
// // result.append("WRegular");
// } else if (TextAttribute.WIDTH_SEMI_CONDENSED.equals(width)) {
// result.append("SemiCondensed");
// } else if (TextAttribute.WIDTH_SEMI_EXTENDED.equals(width)) {
// result.append("SemiExtended");
// }
// insert "name-" at the beginning or return plain "name"
if (result.length() > 0) {
result.insert(0, "-");
result.insert(0, attributes.get(TextAttribute.FAMILY));
} else {
result.append(attributes.get(TextAttribute.FAMILY));
}
return result.toString();
}
/**
* Replaces TextAttribute.FAMILY by values of replaceFonts.
* Whitespace is family name stripped. When a
* font created using the result of this method the transformation would be:
*
* java.awt.Font[family=SansSerif,name=SansSerif,style=plain,size=30]
* will result to:
* java.awt.Font[family=SansSerif,name=Helvetica,style=plain,size=30]
*
* Uses {@link FontTable#normalize(java.util.Map)} first.
*
* @param attributes with font name to change
*/
public static void normalize(Map /**/ attributes) {
// dialog.bold -> Dialog with TextAttribute.WEIGHT_BOLD
FontTable.normalize(attributes);
// get replaced font family name (Yes it's right, not the name!)
String family = replaceFonts.getProperty(
((String) attributes.get(TextAttribute.FAMILY)).toLowerCase());
if (family == null) {
family = (String) attributes.get(TextAttribute.FAMILY);
}
// remove spaces
family = family.replaceAll(" ", "");
// store family
attributes.put(TextAttribute.FAMILY, family);
}
}
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