litesoft
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// This Source Code is in the Public Domain per: http://litesoft.org/License.txt package org.litesoft.core.util; import org.litesoft.commonfoundation.typeutils.*; import org.litesoft.core.simpletypes.*; public abstract class RectangleContainmentStrategy { private String mStrategyName; protected RectangleContainmentStrategy( String pStrategyName ) { mStrategyName = pStrategyName; } /** * Adjust pRect so that it fits within pContainer. * * @param pRect !null * @param pContainer !null */ public Rect adjustToFitIn( Rect pRect, Rect pContainer ) { Objects.assertNotNull( "Rect", pRect ); Objects.assertNotNull( "Container", pContainer ); return pContainer.obscures( pRect ) ? // pRect : // pRect.moveTo( moveToFitIn( pRect, pContainer ) ).adjustToBeObscuredBy( pContainer ); } /** * @return !null means to move to */ public abstract PointXY moveToFitIn( Rect pRect, Rect pContainer ); protected Integer adjust( int pLineOffset, int pLineLength, int pContainerOffset, int pContainerLength ) { int zLineOffset = pLineOffset; // Check to far Right/Bottom int zLineEnd = zLineOffset + pLineLength; int zContainerEnd = pContainerOffset + pContainerLength; if ( zLineEnd > zContainerEnd ) { zLineOffset -= zLineEnd - zContainerEnd; } // Check to far Left/Top if ( zLineOffset < pContainerOffset ) { zLineOffset = pContainerOffset; } return (zLineOffset != pLineOffset) ? zLineOffset : null; } public String toString() { return mStrategyName + "AdjustStrategy"; } } |