| /* |
| |
| 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.dom.anim.AnimationTarget; |
| |
| /** |
| * A number-or-percentage value in the animation system. |
| * |
| * @author <a href="mailto:cam%40mcc%2eid%2eau">Cameron McCormack</a> |
| * @version $Id$ |
| */ |
| public class AnimatableNumberOrPercentageValue extends AnimatableNumberValue { |
| |
| /** |
| * Whether the number is a percentage. |
| */ |
| protected boolean isPercentage; |
| |
| /** |
| * Creates a new, uninitialized AnimatableNumberOrPercentageValue. |
| */ |
| protected AnimatableNumberOrPercentageValue(AnimationTarget target) { |
| super(target); |
| } |
| |
| /** |
| * Creates a new AnimatableNumberOrPercentageValue with a number. |
| */ |
| public AnimatableNumberOrPercentageValue(AnimationTarget target, float n) { |
| super(target, n); |
| } |
| |
| /** |
| * Creates a new AnimatableNumberOrPercentageValue with either a number |
| * or a percentage. |
| */ |
| public AnimatableNumberOrPercentageValue(AnimationTarget target, float n, |
| boolean isPercentage) { |
| super(target, n); |
| this.isPercentage = isPercentage; |
| } |
| |
| /** |
| * Performs interpolation to the given value. |
| */ |
| public AnimatableValue interpolate(AnimatableValue result, |
| AnimatableValue to, |
| float interpolation, |
| AnimatableValue accumulation, |
| int multiplier) { |
| AnimatableNumberOrPercentageValue res; |
| if (result == null) { |
| res = new AnimatableNumberOrPercentageValue(target); |
| } else { |
| res = (AnimatableNumberOrPercentageValue) result; |
| } |
| |
| float newValue; |
| boolean newIsPercentage; |
| |
| AnimatableNumberOrPercentageValue toValue |
| = (AnimatableNumberOrPercentageValue) to; |
| AnimatableNumberOrPercentageValue accValue |
| = (AnimatableNumberOrPercentageValue) accumulation; |
| |
| if (to != null) { |
| if (toValue.isPercentage == isPercentage) { |
| newValue = value + interpolation * (toValue.value - value); |
| newIsPercentage = isPercentage; |
| } else { |
| if (interpolation >= 0.5) { |
| newValue = toValue.value; |
| newIsPercentage = toValue.isPercentage; |
| } else { |
| newValue = value; |
| newIsPercentage = isPercentage; |
| } |
| } |
| } else { |
| newValue = value; |
| newIsPercentage = isPercentage; |
| } |
| |
| if (accumulation != null && accValue.isPercentage == newIsPercentage) { |
| newValue += multiplier * accValue.value; |
| } |
| |
| if (res.value != newValue |
| || res.isPercentage != newIsPercentage) { |
| res.value = newValue; |
| res.isPercentage = newIsPercentage; |
| res.hasChanged = true; |
| } |
| return res; |
| } |
| |
| /** |
| * Returns whether the value is a percentage. |
| */ |
| public boolean isPercentage() { |
| return isPercentage; |
| } |
| |
| /** |
| * 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 AnimatableNumberOrPercentageValue(target, 0, isPercentage); |
| } |
| |
| /** |
| * Returns the CSS text representation of the value. |
| */ |
| public String getCssText() { |
| StringBuffer sb = new StringBuffer(); |
| sb.append(formatNumber(value)); |
| if (isPercentage) { |
| sb.append('%'); |
| } |
| return sb.toString(); |
| } |
| } |