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/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "FOP" and "Apache Software Foundation" must not be used to
endorse or promote products derived from this software without prior
written permission. For written permission, please contact
apache@apache.org.
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
James Tauber <jtauber@jtauber.com>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.fop.fo.flow;
//fop
import org.apache.fop.fo.*;
import org.apache.fop.fo.properties.*;
import org.apache.fop.datatypes.ColorType;
import org.apache.fop.layout.BlockArea;
import org.apache.fop.layout.Area;
import org.apache.fop.layout.inline.InlineArea;
import org.apache.fop.fo.FObj;
import org.apache.fop.layout.FontState;
import org.apache.fop.layout.LineArea;
import org.apache.fop.apps.FOPException;
import org.apache.fop.messaging.MessageHandler;
/**
* this class represents the flow object 'fo:character'. Its use is defined by
* the spec: "The fo:character flow object represents a character that is mapped to
* a glyph for presentation. It is an atomic unit to the formatter.
* When the result tree is interpreted as a tree of formatting objects,
* a character in the result tree is treated as if it were an empty
* element of type fo:character with a character attribute
* equal to the Unicode representation of the character.
* The semantics of an "auto" value for character properties, which is
* typically their initial value, are based on the Unicode codepoint.
* Overrides may be specified in an implementation-specific manner." (6.6.3)
*
*/
public class Character extends FObj {
public final static int OK = 0;
public final static int DOESNOT_FIT = 1;
public Character(FObj parent, PropertyList propertyList) {
super(parent, propertyList);
this.name = "fo:character";
}
public static FObj.Maker maker() {
return new Character.Maker();
}
public static class Maker extends FObj.Maker {
public FObj make(FObj parent,
PropertyList propertyList) throws FOPException {
return new Character(parent, propertyList);
}
}
public Status layout(Area area) throws FOPException {
BlockArea blockArea;
blockArea = (BlockArea) area;
boolean textDecoration;
//color properties
ColorType c = this.properties.get("color").getColorType();
float red = c.red();
float green = c.green();
float blue = c.blue();
int whiteSpaceCollapse = this.properties.get(
"white-space-collapse").getEnum();
int wrapOption = this.parent.properties.get("wrap-option").getEnum();
int tmp = this.properties.get("text-decoration").getEnum();
if (tmp == org.apache.fop.fo.properties.TextDecoration.UNDERLINE) {
textDecoration = true;
} else {
textDecoration = false;
}
//Character specific properties
char characterValue = this.properties.get("character").getCharacter();
// initialize id
String id = this.properties.get("id").getString();
blockArea.getIDReferences().initializeID(id, blockArea);
LineArea la = blockArea.getCurrentLineArea();
if(la == null) {
return new Status(Status.AREA_FULL_NONE);
}
la.changeFont(propMgr.getFontState(area.getFontInfo()));
la.changeColor(red, green, blue);
la.changeWrapOption(wrapOption);
la.changeWhiteSpaceCollapse(whiteSpaceCollapse);
blockArea.setupLinkSet(this.getLinkSet());
int result = la.addCharacter(characterValue, this.getLinkSet(), textDecoration);
if (result == Character.DOESNOT_FIT) {
la = blockArea.createNextLineArea();
if(la == null) {
return new Status(Status.AREA_FULL_NONE);
}
la.changeFont(propMgr.getFontState(area.getFontInfo()));
la.changeColor(red, green, blue);
la.changeWrapOption(wrapOption);
la.changeWhiteSpaceCollapse(whiteSpaceCollapse);
blockArea.setupLinkSet(this.getLinkSet());
la.addCharacter(characterValue, this.getLinkSet(), textDecoration);
}
return new Status(Status.OK);
}
}
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