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/*
* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.fo.flow;
// FOP
import org.apache.fop.fo.*;
import org.apache.fop.fo.properties.*;
import org.apache.fop.layout.*;
import org.apache.fop.apps.FOPException;
import org.apache.fop.image.*;
// Java
import java.net.URL;
import java.net.MalformedURLException;
public class ExternalGraphic extends FObj {
int breakAfter;
int breakBefore;
int align;
int startIndent;
int endIndent;
int spaceBefore;
int spaceAfter;
String src;
int height;
int width;
String id;
ImageArea imageArea;
public ExternalGraphic(FONode parent) {
super(parent);
}
public Status layout(Area area) throws FOPException {
if (this.marker == START) {
// Common Accessibility Properties
AccessibilityProps mAccProps = propMgr.getAccessibilityProps();
// Common Aural Properties
AuralProps mAurProps = propMgr.getAuralProps();
// Common Border, Padding, and Background Properties
BorderAndPadding bap = propMgr.getBorderAndPadding();
BackgroundProps bProps = propMgr.getBackgroundProps();
// Common Margin Properties-Inline
MarginInlineProps mProps = propMgr.getMarginInlineProps();
// Common Relative Position Properties
RelativePositionProps mRelProps = propMgr.getRelativePositionProps();
// this.properties.get("alignment-adjust");
// this.properties.get("alignment-baseline");
// this.properties.get("baseline-shift");
// this.properties.get("block-progression-dimension");
// this.properties.get("content-height");
// this.properties.get("content-type");
// this.properties.get("content-width");
// this.properties.get("display-align");
// this.properties.get("dominant-baseline");
// this.properties.get("height");
// this.properties.get("id");
// this.properties.get("inline-progression-dimension");
// this.properties.get("keep-with-next");
// this.properties.get("keep-with-previous");
// this.properties.get("line-height");
// this.properties.get("line-height-shift-adjustment");
// this.properties.get("overflow");
// this.properties.get("scaling");
// this.properties.get("scaling-method");
// this.properties.get("src");
// this.properties.get("text-align");
// this.properties.get("width");
// 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().getBody().getMaxHeight()
- spaceBefore;
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);
}
if (breakBefore == BreakBefore.PAGE
|| ((spaceBefore + imageArea.getHeight())
> area.spaceLeft())) {
return new Status(Status.FORCE_PAGE_BREAK);
}
if (breakBefore == BreakBefore.ODD_PAGE) {
return new Status(Status.FORCE_PAGE_BREAK_ODD);
}
if (breakBefore == BreakBefore.EVEN_PAGE) {
return new Status(Status.FORCE_PAGE_BREAK_EVEN);
}
if (area instanceof BlockArea) {
BlockArea ba = (BlockArea)area;
LineArea la = ba.getCurrentLineArea();
if (la == null) {
return new Status(Status.AREA_FULL_NONE);
}
la.addPending();
if (imageArea.getContentWidth() > la.getRemainingWidth()) {
la = ba.createNextLineArea();
if (la == null) {
return new Status(Status.AREA_FULL_NONE);
}
}
la.addInlineArea(imageArea);
} else {
area.addChild(imageArea);
area.increaseHeight(imageArea.getContentHeight());
}
imageArea.setPage(area.getPage());
if (breakAfter == BreakAfter.PAGE) {
this.marker = BREAK_AFTER;
return new Status(Status.FORCE_PAGE_BREAK);
}
if (breakAfter == BreakAfter.ODD_PAGE) {
this.marker = BREAK_AFTER;
return new Status(Status.FORCE_PAGE_BREAK_ODD);
}
if (breakAfter == BreakAfter.EVEN_PAGE) {
this.marker = BREAK_AFTER;
return new Status(Status.FORCE_PAGE_BREAK_EVEN);
}
} catch (MalformedURLException urlex) {
// bad URL
log.error("Error while creating area : "
+ urlex.getMessage());
} catch (FopImageException imgex) {
// image error
log.error("Error while creating area : "
+ imgex.getMessage());
}
// if (area instanceof BlockArea) {
// area.start();
// }
return new Status(Status.OK);
}
}
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