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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/>. */
/* Modified by Eric SCHAEFFER */
package org.apache.fop.fo.flow;
// FOP
import org.apache.fop.fo.*;
import org.apache.fop.messaging.MessageHandler;
import org.apache.fop.fo.properties.*;
import org.apache.fop.layout.Area;
import org.apache.fop.layout.BlockArea;
import org.apache.fop.layout.FontState;
import org.apache.fop.apps.FOPException;
import org.apache.fop.image.*;
// Java
import java.util.Enumeration;
import java.util.Hashtable;
import java.net.URL;
import java.net.MalformedURLException;
public class ExternalGraphic extends FObj {
int align;
int startIndent;
int endIndent;
int spaceBefore;
int spaceAfter;
String src;
int height;
int width;
String id;
ImageArea imageArea;
public ExternalGraphic(FObj parent, PropertyList propertyList) {
super(parent, propertyList);
this.name = "fo:external-graphic";
}
public Status layout(Area area) throws FOPException {
if (this.marker == START) {
// FIXME
this.align = this.properties.get("text-align").getEnum();
this.startIndent = this.properties.get(
"start-indent").getLength().mvalue();
this.endIndent = this.properties.get(
"end-indent").getLength().mvalue();
this.spaceBefore = this.properties.get(
"space-before.optimum").getLength().mvalue();
this.spaceAfter = this.properties.get(
"space-after.optimum").getLength().mvalue();
this.src = this.properties.get("src").getString();
this.width = this.properties.get("width").getLength().mvalue();
this.height =
this.properties.get("height").getLength().mvalue();
this.id = this.properties.get("id").getString();
area.getIDReferences().createID(id);
if (area instanceof BlockArea) {
area.end();
}
if (this.isInTableCell) {
startIndent += forcedStartOffset;
endIndent = area.getAllocationWidth() - forcedWidth -
forcedStartOffset;
}
this.marker = 0;
}
try {
FopImage img = FopImageFactory.Make(src);
// if width / height needs to be computed
if ((width == 0) || (height == 0)) {
// aspect ratio
double imgWidth = img.getWidth();
double imgHeight = img.getHeight();
if ((width == 0) && (height == 0)) {
width = (int) ((imgWidth * 1000d));
height = (int) ((imgHeight * 1000d));
}
else if (height == 0) {
height = (int) ((imgHeight * ((double) width)) /
imgWidth);
}
else if (width == 0) {
width = (int) ((imgWidth * ((double) height)) /
imgHeight);
}
}
// scale image if it doesn't fit in the area/page
// Need to be more tested...
double ratio = ((double) width) / ((double) height);
int areaWidth = area.getAllocationWidth() - startIndent - endIndent;
int pageHeight = area.getPage().getHeight();
if (height > pageHeight) {
height = pageHeight;
width = (int) (ratio * ((double) height));
}
if (width > areaWidth) {
width = areaWidth;
height = (int) (((double) width) / ratio);
}
if (area.spaceLeft() < (height + spaceBefore)) {
return new Status(Status.AREA_FULL_NONE);
}
this.imageArea =
new ImageArea(propMgr.getFontState(area.getFontInfo()),
img, area.getAllocationWidth(),
width, height, startIndent, endIndent, align);
if ((spaceBefore != 0) && (this.marker == 0)) {
area.addDisplaySpace(spaceBefore);
}
if (marker == 0) {
// configure id
area.getIDReferences().configureID(id, area);
}
imageArea.start();
imageArea.end();
area.addChild(imageArea);
area.increaseHeight(imageArea.getHeight());
if (spaceAfter != 0) {
area.addDisplaySpace(spaceAfter);
}
}
catch (MalformedURLException urlex) {
// bad URL
MessageHandler.errorln("Error while creating area : " +
urlex.getMessage());
}
catch (FopImageException imgex) {
// image error
MessageHandler.errorln("Error while creating area : " +
imgex.getMessage());
}
if (area instanceof BlockArea) {
area.start();
}
return new Status(Status.OK);
}
public static FObj.Maker maker() {
return new ExternalGraphic.Maker();
}
public static class Maker extends FObj.Maker {
public FObj make(FObj parent,
PropertyList propertyList) throws FOPException {
return new ExternalGraphic(parent, propertyList);
}
}
}
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