| /* |
| |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| |
| */ |
| package org.apache.batik.anim.values; |
| |
| import org.apache.batik.anim.dom.AnimationTarget; |
| |
| import org.w3c.dom.svg.SVGLength; |
| |
| /** |
| * An SVG length-or-identifier value in the animation system. |
| * |
| * @author <a href="mailto:cam%40mcc%2eid%2eau">Cameron McCormack</a> |
| * @version $Id$ |
| */ |
| public class AnimatableLengthOrIdentValue extends AnimatableLengthValue { |
| |
| /** |
| * Whether this value is an identifier. |
| */ |
| protected boolean isIdent; |
| |
| /** |
| * The identifier. |
| */ |
| protected String ident; |
| |
| /** |
| * Creates a new, uninitialized AnimatableLengthOrIdentValue. |
| */ |
| protected AnimatableLengthOrIdentValue(AnimationTarget target) { |
| super(target); |
| } |
| |
| /** |
| * Creates a new AnimatableLengthOrIdentValue for a length value. |
| */ |
| public AnimatableLengthOrIdentValue(AnimationTarget target, short type, |
| float v, short pcInterp) { |
| super(target, type, v, pcInterp); |
| } |
| |
| /** |
| * Creates a new AnimatableLengthOrIdentValue for an identifier value. |
| */ |
| public AnimatableLengthOrIdentValue(AnimationTarget target, String ident) { |
| super(target); |
| this.ident = ident; |
| this.isIdent = true; |
| } |
| |
| /** |
| * Returns whether this value is an identifier or a length. |
| */ |
| public boolean isIdent() { |
| return isIdent; |
| } |
| |
| /** |
| * Returns the identifier. |
| */ |
| public String getIdent() { |
| return ident; |
| } |
| |
| /** |
| * Returns whether two values of this type can have their distance |
| * computed, as needed by paced animation. |
| */ |
| public boolean canPace() { |
| return false; |
| } |
| |
| /** |
| * Returns the absolute distance between this value and the specified other |
| * value. |
| */ |
| public float distanceTo(AnimatableValue other) { |
| return 0f; |
| } |
| |
| /** |
| * Returns a zero value of this AnimatableValue's type. |
| */ |
| public AnimatableValue getZeroValue() { |
| return new AnimatableLengthOrIdentValue |
| (target, SVGLength.SVG_LENGTHTYPE_NUMBER, 0f, |
| percentageInterpretation); |
| } |
| |
| /** |
| * Returns the CSS text representation of the value. |
| */ |
| public String getCssText() { |
| if (isIdent) { |
| return ident; |
| } |
| return super.getCssText(); |
| } |
| |
| /** |
| * Performs interpolation to the given value. |
| */ |
| public AnimatableValue interpolate(AnimatableValue result, |
| AnimatableValue to, float interpolation, |
| AnimatableValue accumulation, |
| int multiplier) { |
| AnimatableLengthOrIdentValue res; |
| if (result == null) { |
| res = new AnimatableLengthOrIdentValue(target); |
| } else { |
| res = (AnimatableLengthOrIdentValue) result; |
| } |
| |
| if (to == null) { |
| if (isIdent) { |
| res.hasChanged = !res.isIdent || !res.ident.equals(ident); |
| res.ident = ident; |
| res.isIdent = true; |
| } else { |
| short oldLengthType = res.lengthType; |
| float oldLengthValue = res.lengthValue; |
| short oldPercentageInterpretation = res.percentageInterpretation; |
| super.interpolate(res, to, interpolation, accumulation, |
| multiplier); |
| if (res.lengthType != oldLengthType |
| || res.lengthValue != oldLengthValue |
| || res.percentageInterpretation |
| != oldPercentageInterpretation) { |
| res.hasChanged = true; |
| } |
| } |
| } else { |
| AnimatableLengthOrIdentValue toValue |
| = (AnimatableLengthOrIdentValue) to; |
| if (isIdent || toValue.isIdent) { |
| if (interpolation >= 0.5) { |
| if (res.isIdent != toValue.isIdent |
| || res.lengthType != toValue.lengthType |
| || res.lengthValue != toValue.lengthValue |
| || res.isIdent && toValue.isIdent |
| && !toValue.ident.equals(ident)) { |
| res.isIdent = toValue.isIdent; |
| res.ident = toValue.ident; |
| res.lengthType = toValue.lengthType; |
| res.lengthValue = toValue.lengthValue; |
| res.hasChanged = true; |
| } |
| } else { |
| if (res.isIdent != isIdent |
| || res.lengthType != lengthType |
| || res.lengthValue != lengthValue |
| || res.isIdent && isIdent |
| && !res.ident.equals(ident)) { |
| res.isIdent = isIdent; |
| res.ident = ident; |
| res.ident = ident; |
| res.lengthType = lengthType; |
| res.hasChanged = true; |
| } |
| } |
| } else { |
| super.interpolate(res, to, interpolation, accumulation, |
| multiplier); |
| } |
| } |
| |
| return res; |
| } |
| } |