/*
 * Copyright 2019 Hippo Seven
 *
 * 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.hippo.ehviewer.widget;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;

import com.hippo.ehviewer.R;
import com.hippo.widget.LoadImageView;

public class FixedThumb extends LoadImageView {

    private float minAspect;
    private float maxAspect;
    private boolean alwaysCutAndScale;

    public FixedThumb(Context context) {
        super(context);
        init(context, null, 0, 0);
    }

    public FixedThumb(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context, attrs, 0, 0);
    }

    public FixedThumb(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init(context, attrs, defStyle, 0);
    }

    private void init(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.FixedThumb, defStyleAttr, defStyleRes);
        minAspect = a.getFloat(R.styleable.FixedThumb_minAspect, 0.0f);
        maxAspect = a.getFloat(R.styleable.FixedThumb_maxAspect, 0.0f);
        alwaysCutAndScale = a.getBoolean(R.styleable.FixedThumb_alwaysCutAndScale, false);
        a.recycle();
    }

    public void setFix(float minAspect, float maxAspect) {
        this.minAspect = minAspect;
        this.maxAspect = maxAspect;
    }

    @Override
    public void onPreSetImageDrawable(Drawable drawable, boolean isTarget) {
        if (alwaysCutAndScale) {
            setScaleType(ScaleType.CENTER_CROP);
            return;
        }
        if (isTarget && drawable != null) {
            int width = drawable.getIntrinsicWidth();
            int height = drawable.getIntrinsicHeight();
            if (width > 0 && height > 0) {
                float aspect = (float) width / (float) height;
                if (aspect < maxAspect && aspect > minAspect) {
                    setScaleType(ScaleType.CENTER_CROP);
                    return;
                }
            }
        }

        setScaleType(ScaleType.FIT_CENTER);
    }

    @Override
    public void onPreSetImageResource(int resId, boolean isTarget) {
        setScaleType(ScaleType.FIT_CENTER);
    }
}