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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.xml.fop.layout;
-
- // FOP
- import org.apache.xml.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;
-
- /* 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;
-
- 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,
- 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);
- ts = this.currentLineArea.addText(ca, ts, te);
- 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);
- ts = this.currentLineArea.addText(ca, ts, te);
- }
- 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;
- }
-
- public int spaceLeft() {
- return maxHeight - currentHeight;
- }
- }
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