// Copyright 2018 The MACE Authors. All Rights Reserved.
//
// 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.xiaomi.mace.demo.camera;

import android.content.Context;
import android.util.AttributeSet;
import android.view.TextureView;

public class CameraTextureView extends TextureView {

    private int ratioWidth;
    private int ratioHeight;

    public CameraTextureView(Context context) {
        super(context);
    }

    public CameraTextureView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CameraTextureView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    public void setRatio(int width, int height) {
        this.ratioWidth = width;
        this.ratioHeight = height;
        requestLayout();
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        int width = MeasureSpec.getSize(widthMeasureSpec);
        int height = MeasureSpec.getSize(heightMeasureSpec);
        if (ratioWidth <= 0 || ratioHeight <= 0) {
            setMeasuredDimension(width, height);
        } else {
            setMeasuredDimension(width, width * ratioHeight / ratioWidth);
        }
    }
}
