86 lines
2.4 KiB
Kotlin
86 lines
2.4 KiB
Kotlin
/*
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* Copyright (C) 2019 Electric Coin Company
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*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* This file has been modified by Electric Coin Company to translate it into Kotlin and add support for Firebase vision.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cash.z.android.cameraview.base
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import androidx.collection.ArrayMap
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import java.util.SortedSet
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import java.util.TreeSet
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/**
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* A collection class that automatically groups [Size]s by their [AspectRatio]s.
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*/
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internal class SizeMap {
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private val mRatios = ArrayMap<AspectRatio, SortedSet<Size>>()
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val isEmpty: Boolean
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get() = mRatios.isEmpty()
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/**
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* Add a new [Size] to this collection.
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*
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* @param size The size to add.
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* @return `true` if it is added, `false` if it already exists and is not added.
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*/
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fun add(size: Size): Boolean {
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for (ratio in mRatios.keys) {
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if (ratio.matches(size)) {
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val sizes = mRatios[ratio]
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if (sizes?.contains(size) == true) {
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return false
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} else {
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if(sizes == null) mRatios[ratio] = TreeSet<Size>().let { it.add(size); it }
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else sizes.add(size)
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return true
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}
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}
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}
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// None of the existing ratio matches the provided size; add a new key
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val sizes = TreeSet<Size>()
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sizes.add(size)
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mRatios.put(AspectRatio.of(size.width, size.height), sizes)
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return true
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}
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/**
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* Removes the specified aspect ratio and all sizes associated with it.
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*
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* @param ratio The aspect ratio to be removed.
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*/
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fun remove(ratio: AspectRatio) {
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mRatios.remove(ratio)
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}
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fun ratios(): Set<AspectRatio> {
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return mRatios.keys
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}
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fun sizes(ratio: AspectRatio): SortedSet<Size> {
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return mRatios[ratio]!!
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}
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fun clear() {
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mRatios.clear()
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}
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}
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