Android Open Source - elementary Aspect Quotient

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License

The source code is released under:

MIT License

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Java Source Code

/*
 * The MIT License (MIT)//  www .ja  va 2s.  c om
 * Copyright  2012 Steve Guidetti
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the Software??), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED AS IS??, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.ultramegatech.widget;

import java.util.Observable;

/**
 * Stores the quotient between the aspect ratios of the container and a view.
 * 
 * @author Steve Guidetti
 */
public class AspectQuotient extends Observable {
    /* Current aspect quotient */
    private double mAspectQuotient;
    
    /**
     * Get the aspect quotient.
     * 
     * @return 
     */
    public double get() {
        return mAspectQuotient;
    }
    
    /**
     * Calculate aspect quotient based on supplied view and content dimensions.
     * 
     * @param viewWidth Width of container
     * @param viewHeight Height of container
     * @param contentWidth Width of content
     * @param contentHeight Height of content
     */
    public void updateAspectQuotient(double viewWidth, double viewHeight, double contentWidth,
            double contentHeight) {
        final double aspectQuotient = (contentWidth / contentHeight) / (viewWidth / viewHeight);
        if(aspectQuotient != mAspectQuotient) {
            mAspectQuotient = aspectQuotient;
            setChanged();
        }
    }
}

Java Source Code List