/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed 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 com.glview.transition;
import java.util.ArrayList;
import java.util.Map;
import com.glview.support.v4.util.ArrayMap;
import com.glview.view.View;
import com.glview.view.ViewGroup;
/**
* Data structure which holds cached values for the transition.
* The view field is the target which all of the values pertain to.
* The values field is a map which holds information for fields
* according to names selected by the transitions. These names should
* be unique to avoid clobbering values stored by other transitions,
* such as the convention project:transition_name:property_name. For
* example, the platform might store a property "alpha" in a transition
* "Fader" as "android:fader:alpha".
*
* <p>These values are cached during the
* {@link Transition#captureStartValues(TransitionValues)}
* capture} phases of a scene change, once when the start values are captured
* and again when the end values are captured. These start/end values are then
* passed into the transitions via the
* for {@link Transition#createAnimator(ViewGroup, TransitionValues, TransitionValues)}
* method.</p>
*/
public class TransitionValues {
/**
* The View with these values
*/
public View view;
/**
* The set of values tracked by transitions for this scene
*/
public final Map<String, Object> values = new ArrayMap<String, Object>();
/**
* The Transitions that targeted this view.
*/
final ArrayList<Transition> targetedTransitions = new ArrayList<Transition>();
@Override
public boolean equals(Object other) {
if (other instanceof TransitionValues) {
if (view == ((TransitionValues) other).view) {
if (values.equals(((TransitionValues) other).values)) {
return true;
}
}
}
return false;
}
@Override
public int hashCode() {
return 31*view.hashCode() + values.hashCode();
}
@Override
public String toString() {
String returnValue = "TransitionValues@" + Integer.toHexString(hashCode()) + ":\n";
returnValue += " view = " + view + "\n";
returnValue += " values:";
for (String s : values.keySet()) {
returnValue += " " + s + ": " + values.get(s) + "\n";
}
return returnValue;
}
}