zcash-android-wallet-zcon1/zcash-android-wallet-app/qrecycler/src/main/java/cash/z/android/cameraview/base/PreviewImpl.kt

77 lines
1.9 KiB
Kotlin

/*
* Copyright (C) 2019 Electric Coin Company
*
* Copyright (C) 2016 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
*
* This file has been modified by Electric Coin Company to translate it into Kotlin and add support for Firebase vision.
*
* 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 cash.z.android.cameraview.base
import android.view.Surface
import android.view.SurfaceHolder
import android.view.View
/**
* Encapsulates all the operations related to camera preview in a backward-compatible manner.
*/
internal abstract class PreviewImpl {
private var mCallback: Callback? = null
var width: Int = 0
private set
var height: Int = 0
private set
internal abstract val surface: Surface
internal abstract val view: View
internal abstract val outputClass: Class<*>
internal abstract val isReady: Boolean
val surfaceHolder: SurfaceHolder?
get() = null
open val surfaceTexture: Any?
get() = null
internal interface Callback {
fun onSurfaceChanged()
}
fun setCallback(callback: Callback) {
mCallback = callback
}
internal abstract fun setDisplayOrientation(displayOrientation: Int)
protected fun dispatchSurfaceChanged() {
mCallback!!.onSurfaceChanged()
}
open fun setBufferSize(width: Int, height: Int) {}
fun setSize(width: Int, height: Int) {
this.width = width
this.height = height
}
}