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/*-- $Id$ --
============================================================================
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.layout;
// FOP
import org.apache.fop.render.Renderer;
// Java
import java.util.Vector;
import java.util.Enumeration;
public class BlockArea extends Area {
/* relative to area container */
protected int startIndent;
protected int endIndent;
/* first line startIndent modifier */
protected int textIndent;
protected int lineHeight;
protected int halfLeading;
/* text-align of all but the last line */
protected int align;
/* text-align of the last line */
protected int alignLastLine;
protected LineArea currentLineArea;
protected LinkSet currentLinkSet;
/* have any line areas been used? */
protected boolean hasLines = false;
public BlockArea(FontState fontState, int allocationWidth,
int maxHeight, int startIndent, int endIndent,
int textIndent, int align, int alignLastLine,
int lineHeight) {
super(fontState, allocationWidth, maxHeight);
this.startIndent = startIndent;
this.endIndent = endIndent;
this.textIndent = textIndent;
this.contentRectangleWidth = allocationWidth - startIndent - endIndent;
this.align = align;
this.alignLastLine = alignLastLine;
this.lineHeight = lineHeight;
if (fontState != null)
this.halfLeading = (lineHeight - fontState.getFontSize())/2;
}
public void render(Renderer renderer) {
renderer.renderBlockArea(this);
}
public void addLineArea(LineArea la) {
if (!la.isEmpty()) {
this.addDisplaySpace(this.halfLeading);
int size = la.getHeight();
this.addChild(la);
this.increaseHeight(size);
this.addDisplaySpace(this.halfLeading);
}
}
public int addText(FontState fontState, float red, float green,
float blue, int wrapOption, LinkSet ls,
int whiteSpaceTreatment, char data[],
int start, int end) {
int ts, te;
char[] ca;
ts = start;
te = end;
ca = data;
if (currentHeight + currentLineArea.getHeight() > maxHeight) {
return start;
}
this.currentLineArea.changeFont(fontState);
this.currentLineArea.changeColor(red, green, blue);
this.currentLineArea.changeWrapOption(wrapOption);
this.currentLineArea.changeWhiteSpaceTreatment(whiteSpaceTreatment);
if (ls != null) {
this.currentLinkSet = ls;
ls.setYOffset(currentHeight);
}
ts = this.currentLineArea.addText(ca, ts, te, ls);
this.hasLines = true;
while (ts != -1) {
this.currentLineArea.align(this.align);
this.addLineArea(this.currentLineArea);
this.currentLineArea = new
LineArea(fontState, lineHeight, halfLeading,
allocationWidth, startIndent, endIndent);
if (currentHeight + currentLineArea.getHeight() >
this.maxHeight) {
return ts;
}
this.currentLineArea.changeFont(fontState);
this.currentLineArea.changeColor(red, green, blue);
this.currentLineArea.changeWrapOption(wrapOption);
this.currentLineArea.changeWhiteSpaceTreatment(whiteSpaceTreatment);
if (ls != null) {
ls.setYOffset(currentHeight);
}
ts = this.currentLineArea.addText(ca, ts, te, ls);
}
return -1;
}
public void end() {
if (this.hasLines) {
this.currentLineArea.addPending();
this.currentLineArea.align(this.alignLastLine);
this.addLineArea(this.currentLineArea);
}
}
public void start() {
currentLineArea = new LineArea(fontState, lineHeight,
halfLeading, allocationWidth,
startIndent + textIndent,
endIndent);
}
public int getEndIndent() {
return endIndent;
}
public int getStartIndent() {
return startIndent + paddingLeft + borderWidthLeft;
}
public void setIndents(int startIndent, int endIndent) {
this.startIndent = startIndent;
this.endIndent = endIndent;
this.contentRectangleWidth = allocationWidth - startIndent - endIndent;
}
public int spaceLeft() {
return maxHeight - currentHeight;
}
}
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