/*****************************************************************************
* Copyright (C) The Apache Software Foundation. All rights reserved. *
* ------------------------------------------------------------------------- *
* This software is published under the terms of the Apache Software License *
* version 1.1, a copy of which has been included with this distribution in *
* the LICENSE file. *
*****************************************************************************/
package org.apache.batik.bridge;
import java.awt.geom.Rectangle2D;
import java.util.Map;
import org.apache.batik.ext.awt.image.renderable.Filter;
import org.apache.batik.ext.awt.image.renderable.TileRable8Bit;
import org.apache.batik.ext.awt.image.renderable.TileRable;
import org.apache.batik.gvt.GraphicsNode;
import org.w3c.dom.Element;
/**
* Bridge class for the <feTile> element.
*
* @author <a href="mailto:tkormann@apache.org">Thierry Kormann</a>
* @version $Id: SVGFeTileElementBridge.java,v 1.8 2001/05/02 16:14:45 tkormann Exp $
*/
public class SVGFeTileElementBridge
extends AbstractSVGFilterPrimitiveElementBridge {
/**
* Constructs a new bridge for the <feTile> element.
*/
public SVGFeTileElementBridge() {}
/**
* Returns 'feTile'.
*/
public String getLocalName() {
return SVG_FE_TILE_TAG;
}
/**
* Creates a <tt>Filter</tt> primitive according to the specified
* parameters.
*
* @param ctx the bridge context to use
* @param filterElement the element that defines a filter
* @param filteredElement the element that references the filter
* @param filteredNode the graphics node to filter
*
* @param inputFilter the <tt>Filter</tt> that represents the current
* filter input if the filter chain.
* @param filterRegion the filter area defined for the filter chain
* the new node will be part of.
* @param filterMap a map where the mediator can map a name to the
* <tt>Filter</tt> it creates. Other <tt>FilterBridge</tt>s
* can then access a filter node from the filterMap if they
* know its name.
*/
public Filter createFilter(BridgeContext ctx,
Element filterElement,
Element filteredElement,
GraphicsNode filteredNode,
Filter inputFilter,
Rectangle2D filterRegion,
Map filterMap) {
// Get the tiled region. For feTile, the default for the
// filter primitive subregion is the parent filter region.
Rectangle2D defaultRegion = filterRegion;
Rectangle2D primitiveRegion
= SVGUtilities.convertFilterPrimitiveRegion(filterElement,
filteredElement,
filteredNode,
defaultRegion,
filterRegion,
ctx);
// 'in' attribute
Filter in = getIn(filterElement,
filteredElement,
filteredNode,
inputFilter,
filterMap,
ctx);
if (in == null) {
return null; // disable the filter
}
Filter filter
= new TileRable8Bit(in, primitiveRegion, in.getBounds2D(), false);
// update the filter Map
updateFilterMap(filterElement, filter, filterMap);
// handle the 'color-interpolation-filters' property
handleColorInterpolationFilters(filter, filterElement);
return filter;
}
}