/*
* $RCSfile: FloatTraitAnim.java,v $
*
* Copyright 1990-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.perseus.model;
import org.w3c.dom.DOMException;
/**
* @version $Id: FloatTraitAnim.java,v 1.3 2006/06/29 10:47:31 ln156897 Exp $
*/
class FloatTraitAnim extends TraitAnim {
/**
* Constructs a new FloatTraitAnim for a given ElementNode trait.
*
* @param targetElement the ElementNode whose trait is animated.
* @param targetTrait the name of the animated trait.
* @param traitType the trait type.
*/
public FloatTraitAnim(final ElementNode targetElement,
final String traitName,
final String traitType) {
super(targetElement, ElementNode.NULL_NS, traitName, traitType);
}
/**
* Returns the BaseValue as an array of objects.
*
* @return the base value as an object array. The dimensions of the
* returned array depend on the trait.
* @see com.sun.perseus.model.BaseValue
*/
public Object[] getBaseValue() {
return targetElement.validateFloatArrayTrait(
traitName,
getSpecifiedTraitNS(),
targetElement.getNamespaceURI(),
targetElement.getLocalName(),
traitNamespace,
traitName);
}
/**
* Applies the animation effect. The implementation makes sure it
* implements the sandwich model by 'pulling' values from the
* root animation (i.e., the animation with the highest priority).
*/
void apply() {
float[][] v = (float[][]) rootAnim.compute();
targetElement.setFloatArrayTrait(traitName, v);
}
/**
* @return the trait's value, as a String.
*/
protected String getTraitImpl() {
// This returns the computed trait value, using the specified
// trait value.
float[][] v = targetElement.validateFloatArrayTrait(
traitName,
specifiedTraitValue,
targetElement.getNamespaceURI(),
targetElement.getLocalName(),
traitNamespace,
traitName);
// Now, convert that value to a string.
return targetElement.toStringTrait(traitName, v);
}
/**
* Sets the trait's base value, as a String.
*
* @param value the new trait base value.
*
* @throws DOMException with error code INVALID_ACCESS_ERR if the input
* value is an invalid value for the given trait or null.
*/
void setTraitImpl(String value) throws DOMException {
targetElement.validateFloatArrayTrait(traitName,
value,
targetElement.getNamespaceURI(),
targetElement.getLocalName(),
traitNamespace,
traitName);
specifiedTraitValue = value;
}
/**
* Converts the input values set to a RefValues object.
*
* @param anim the <code>TraitAnimationNode</code> for which the values should be
* converted.
* @param values a semi-colon seperated list of values which need to be
* validated.
* @param reqTraitNamespace the namespace of the trait which has the values
* value on the requesting element.
* @param reqTraitName the name of the trait which has the values value on
* the requesting element.
* @throws DOMException with error code INVALID_ACCESS_ERR if the input
* value is incompatible with the given trait.
* @throws NullPointerException if values is null.
*/
RefValues toRefValues(final TraitAnimationNode anim,
String[] values,
final String reqTraitNamespace,
final String reqTraitName) throws DOMException {
FloatRefValues refValues = new FloatRefValues();
if (values.length < 1) {
throw new IllegalArgumentException();
}
if (values.length == 1) {
String[] tmpValues = new String[2];
tmpValues[0] = values[0];
tmpValues[1] = values[0];
values = tmpValues;
}
int nSegments = values.length - 1;
refValues.segments = new FloatSegment[nSegments];
// Build the first segment.
refValues.segments[0] = new FloatSegment();
refValues.segments[0].start =
targetElement.validateFloatArrayTrait(anim.traitName,
values[0],
anim.getNamespaceURI(),
anim.getLocalName(),
reqTraitNamespace,
reqTraitName);
refValues.segments[0].end =
targetElement.validateFloatArrayTrait(anim.traitName,
values[1],
anim.getNamespaceURI(),
anim.getLocalName(),
reqTraitNamespace,
reqTraitName);
FloatSegment prevSegment = refValues.segments[0];
for (int i = 1; i < nSegments; i++) {
refValues.segments[i] = new FloatSegment();
refValues.segments[i].start = prevSegment.end;
refValues.segments[i].end =
targetElement.validateFloatArrayTrait(anim.traitName,
values[i + 1],
anim.getNamespaceURI(),
anim.getLocalName(),
reqTraitNamespace,
reqTraitName);
prevSegment = refValues.segments[i];
}
return refValues;
}
/**
* Used to sum two animated trait values.
*
* @param valueA the base value. May be null.
* @param valueB the value to add to the base value. If the baseValue
*/
public Object[] sum(Object[] valueA, Object[] valueB) {
if (valueA == null) {
return valueB;
}
float[][] fva = (float[][]) valueA;
float[][] fvb = (float[][]) valueB;
for (int ci = 0; ci < fva.length; ci++) {
for (int di = 0; di < fva[ci].length; di++) {
fvb[ci][di] += fva[ci][di];
}
}
return valueB;
}
/**
* Used to multiply an animated trait value by a number of iterations.
*
* @param value the animated trait value to multiply.
* @param iter the number of iteration to account for.
* @return the multiply result.
*/
public Object[] multiply(Object[] value, int iter) {
float[][] fv = (float[][]) value;
float[][] r = new float[fv.length][];
for (int ci = 0; ci < fv.length; ci++) {
r[ci] = new float[fv[ci].length];
for (int di = 0; di < fv[ci].length; di++) {
r[ci][di] = fv[ci][di] * iter;
}
}
return r;
}
/**
* @return true, because FloatTraitAnim support interpolation.
*/
boolean supportsInterpolation() {
return true;
}
}