/*
 * Copyright (c) 2012 Google Inc.  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 uk.org.ngo.squeezer.widgets;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.ImageView;

/**
 * Sets both height and width to the height that the parent has determined. This
 * assumes that layout_height="fill_parent" in the layout definition.
 * <p>
 * TODO: This could inspect the mode of each measure spec to determine if it's
 * the width or the height that are set to fill_parent, and use whichever one is
 * as the primary measurement, at which point this class would live up to its
 * name.
 */
public class SquareImageView extends ImageView {
    public SquareImageView(Context context) {
        super(context);
    }

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

    public SquareImageView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int height;

        height = MeasureSpec.getSize(heightMeasureSpec);

        setMeasuredDimension(height, height);
    }
}

/*
 * Copyright (c) 2012 Google Inc.  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 uk.org.ngo.squeezer.widgets;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

/**
 * Sets both height and width to the height that the parent has determined. This
 * assumes that layout_height="fill_parent" in the layout definition.
 * <p>
 * TODO: This could inspect the mode of each measure spec to determine if it's
 * the width or the height that are set to fill_parent, and use whichever one is
 * as the primary measurement, at which point this class would live up to its
 * name.
 */
public class SquareImageView extends ImageView {
    private boolean mBlockLayout;

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

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

    public SquareImageView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int height;

        height = MeasureSpec.getSize(heightMeasureSpec);

        setMeasuredDimension(height, height);
    }

    @Override
    public void setImageDrawable(Drawable drawable) {
        mBlockLayout = true;
        super.setImageDrawable(drawable);
        mBlockLayout = false;
    }

    @Override
    public void requestLayout() {
        if (!mBlockLayout) {
            super.requestLayout();
        }
    }
}

Optimise SquareImageView layout.