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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.pagination;
// FOP
import org.apache.fop.fo.*;
import org.apache.fop.fo.properties.*;
import org.apache.fop.area.CTM;
import org.apache.fop.datatypes.FODimension;
import org.apache.fop.area.PageViewport;
import org.apache.fop.area.Page;
import org.apache.fop.area.RegionViewport;
import org.apache.fop.area.RegionReference;
import org.apache.fop.layout.MarginProps;
import org.apache.fop.layout.PageMaster;
import org.apache.fop.apps.FOPException;
import java.awt.Rectangle;
import java.awt.geom.Rectangle2D;
import java.util.HashMap;
import java.util.Iterator;
import org.xml.sax.Attributes;
/**
* A simple-page-master formatting object.
* This creates a simple page from the specified regions
* and attributes.
*/
public class SimplePageMaster extends FObj {
/**
* Page regions (regionClass, Region)
*/
private HashMap _regions;
PageMaster pageMaster;
String masterName;
public SimplePageMaster(FONode parent) {
super(parent);
}
public void handleAttrs(Attributes attlist) throws FOPException {
super.handleAttrs(attlist);
if (parent.getName().equals("fo:layout-master-set")) {
LayoutMasterSet layoutMasterSet = (LayoutMasterSet)parent;
masterName = this.properties.get("master-name").getString();
if (masterName == null) {
getLogger().warn("simple-page-master does not have "
+ "a master-name and so is being ignored");
} else {
layoutMasterSet.addSimplePageMaster(this);
}
} else {
throw new FOPException("fo:simple-page-master must be child "
+ "of fo:layout-master-set, not "
+ parent.getName());
}
_regions = new HashMap();
}
/**
* At the end of this element read all the information and create
* the page master.
*/
protected void end() {
int pageWidth =
this.properties.get("page-width").getLength().mvalue();
int pageHeight =
this.properties.get("page-height").getLength().mvalue();
// this.properties.get("reference-orientation");
// this.properties.get("writing-mode");
// Get absolute margin properties (top, left, bottom, right)
MarginProps mProps = propMgr.getMarginProps();
/* Create the page reference area rectangle in first quadrant coordinates
* (ie, 0,0 is at bottom,left of the "page media" and y increases
* when moving towards the top of the page.
* The media rectangle itself is (0,0,pageWidth,pageHeight).
*/
Rectangle pageRefRect =
new Rectangle(mProps.marginLeft, mProps.marginTop,
pageWidth - mProps.marginLeft - mProps.marginRight,
pageHeight - mProps.marginTop - mProps.marginBottom);
// ??? KL shouldn't this take the viewport too???
Page page = new Page(); // page reference area
// Set up the CTM on the page reference area based on writing-mode
// and reference-orientation
FODimension reldims=new FODimension(0,0);
CTM pageCTM = propMgr.getCTMandRelDims(pageRefRect, reldims);
// Create a RegionViewport/ reference area pair for each page region
boolean bHasBody=false;
for (Iterator regenum = _regions.values().iterator();
regenum.hasNext(); ) {
Region r = (Region)regenum.next();
RegionViewport rvp = r.makeRegionViewport(reldims, pageCTM);
rvp.setRegion(r.makeRegionReferenceArea(rvp.getViewArea()));
page.setRegion(r.getRegionAreaClass(), rvp);
if (r.getRegionAreaClass() == RegionReference.BODY) {
bHasBody = true;
}
}
if (!bHasBody) {
getLogger().error("simple-page-master has no region-body");
}
this.pageMaster = new PageMaster(new PageViewport(page,
new Rectangle(0,0,
pageWidth,pageHeight)));
// _regions = null; // PageSequence access SimplePageMaster....
children = null;
properties = null;
}
public boolean generatesReferenceAreas() {
return true;
}
public PageMaster getPageMaster() {
return this.pageMaster;
}
public PageMaster getNextPageMaster() {
return this.pageMaster;
}
public String getMasterName() {
return masterName;
}
protected void addChild(FONode child) {
if (child instanceof Region) {
addRegion((Region)child);
} else {
getLogger().error("SimplePageMaster cannot have child of type " +
child.getName());
}
}
protected void addRegion(Region region) {
String key = region.getRegionClass();
if (_regions.containsKey(key)) {
getLogger().error("Only one region of class "
+ key
+ " allowed within a simple-page-master.");
// throw new FOPException("Only one region of class "
// + key
// + " allowed within a simple-page-master.");
} else {
_regions.put(key, region);
}
}
public Region getRegion(String regionClass) {
return (Region)_regions.get(regionClass);
}
protected HashMap getRegions() {
return _regions;
}
protected boolean regionNameExists(String regionName) {
for (Iterator regenum = _regions.values().iterator();
regenum.hasNext(); ) {
Region r = (Region)regenum.next();
if (r.getRegionName().equals(regionName)) {
return true;
}
}
return false;
}
}
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