| /* |
| * Copyright (C) 2014 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.android.systemui.recents.views; |
| |
| import android.animation.Animator; |
| import android.animation.ObjectAnimator; |
| import android.animation.PropertyValuesHolder; |
| import android.graphics.RectF; |
| import android.util.IntProperty; |
| import android.util.Property; |
| import android.view.View; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * The visual properties for a {@link TaskView}. |
| */ |
| public class TaskViewTransform { |
| |
| public static final Property<View, Integer> LEFT = |
| new IntProperty<View>("left") { |
| @Override |
| public void setValue(View object, int v) { |
| object.setLeft(v); |
| } |
| |
| @Override |
| public Integer get(View object) { |
| return object.getLeft(); |
| } |
| }; |
| |
| public static final Property<View, Integer> TOP = |
| new IntProperty<View>("top") { |
| @Override |
| public void setValue(View object, int v) { |
| object.setTop(v); |
| } |
| |
| @Override |
| public Integer get(View object) { |
| return object.getTop(); |
| } |
| }; |
| |
| public static final Property<View, Integer> RIGHT = |
| new IntProperty<View>("right") { |
| @Override |
| public void setValue(View object, int v) { |
| object.setRight(v); |
| } |
| |
| @Override |
| public Integer get(View object) { |
| return object.getRight(); |
| } |
| }; |
| |
| public static final Property<View, Integer> BOTTOM = |
| new IntProperty<View>("bottom") { |
| @Override |
| public void setValue(View object, int v) { |
| object.setBottom(v); |
| } |
| |
| @Override |
| public Integer get(View object) { |
| return object.getBottom(); |
| } |
| }; |
| |
| public float translationZ = 0; |
| public float scale = 1f; |
| public float alpha = 1f; |
| |
| public boolean visible = false; |
| float p = 0f; |
| |
| // This is a window-space rect used for positioning the task in the stack and freeform workspace |
| public RectF rect = new RectF(); |
| |
| /** |
| * Resets the current transform. |
| */ |
| public void reset() { |
| translationZ = 0; |
| scale = 1f; |
| alpha = 1f; |
| visible = false; |
| rect.setEmpty(); |
| p = 0f; |
| } |
| |
| /** Convenience functions to compare against current property values */ |
| public boolean hasAlphaChangedFrom(float v) { |
| return (Float.compare(alpha, v) != 0); |
| } |
| |
| public boolean hasScaleChangedFrom(float v) { |
| return (Float.compare(scale, v) != 0); |
| } |
| |
| public boolean hasTranslationZChangedFrom(float v) { |
| return (Float.compare(translationZ, v) != 0); |
| } |
| |
| public boolean hasRectChangedFrom(View v) { |
| return ((int) rect.left != v.getLeft()) || ((int) rect.right != v.getRight()) || |
| ((int) rect.top != v.getTop()) || ((int) rect.bottom != v.getBottom()); |
| } |
| |
| /** |
| * Applies this transform to a view. |
| */ |
| public void applyToTaskView(TaskView v, ArrayList<Animator> animators, |
| TaskViewAnimation taskAnimation, boolean allowShadows) { |
| // Return early if not visible |
| if (!visible) { |
| return; |
| } |
| |
| if (taskAnimation.isImmediate()) { |
| if (allowShadows && hasTranslationZChangedFrom(v.getTranslationZ())) { |
| v.setTranslationZ(translationZ); |
| } |
| if (hasScaleChangedFrom(v.getScaleX())) { |
| v.setScaleX(scale); |
| v.setScaleY(scale); |
| } |
| if (hasAlphaChangedFrom(v.getAlpha())) { |
| v.setAlpha(alpha); |
| } |
| if (hasRectChangedFrom(v)) { |
| v.setLeftTopRightBottom((int) rect.left, (int) rect.top, (int) rect.right, |
| (int) rect.bottom); |
| } |
| } else { |
| if (allowShadows && hasTranslationZChangedFrom(v.getTranslationZ())) { |
| animators.add(ObjectAnimator.ofFloat(v, View.TRANSLATION_Z, v.getTranslationZ(), |
| translationZ)); |
| } |
| if (hasScaleChangedFrom(v.getScaleX())) { |
| animators.add(ObjectAnimator.ofPropertyValuesHolder(v, |
| PropertyValuesHolder.ofFloat(View.SCALE_X, v.getScaleX(), scale), |
| PropertyValuesHolder.ofFloat(View.SCALE_Y, v.getScaleX(), scale))); |
| } |
| if (hasAlphaChangedFrom(v.getAlpha())) { |
| animators.add(ObjectAnimator.ofFloat(v, View.ALPHA, v.getAlpha(), alpha)); |
| } |
| if (hasRectChangedFrom(v)) { |
| animators.add(ObjectAnimator.ofPropertyValuesHolder(v, |
| PropertyValuesHolder.ofInt(LEFT, v.getLeft(), (int) rect.left), |
| PropertyValuesHolder.ofInt(TOP, v.getTop(), (int) rect.top), |
| PropertyValuesHolder.ofInt(RIGHT, v.getRight(), (int) rect.right), |
| PropertyValuesHolder.ofInt(BOTTOM, v.getBottom(), (int) rect.bottom))); |
| } |
| } |
| } |
| |
| /** Reset the transform on a view. */ |
| public static void reset(TaskView v) { |
| v.setTranslationX(0f); |
| v.setTranslationY(0f); |
| v.setTranslationZ(0f); |
| v.setScaleX(1f); |
| v.setScaleY(1f); |
| v.setAlpha(1f); |
| v.getViewBounds().setClipBottom(0); |
| v.setLeftTopRightBottom(0, 0, 0, 0); |
| } |
| } |