RegionAction.java 文件源码

/**
 * This constructor supports shape definition via a rectangle.
 * 
 * @param oSource
 *            StructureSource
 * @param bo
 *            Rectangle
 * @param ac
 *            Action
 * @param dTranslateX
 *            X translation to apply to rectangle
 * @param dTranslateY
 *            Y translation to apply to rectangle
 * @param dScale
 *            scale to apply to rectangle
 * @param clipping
 *            Clipping area, points outside it will be clipped
 */
RegionAction( StructureSource oSource, Bounds bo, Action ac,
        double dTranslateX, double dTranslateY, double dScale,
        Region clipping )
{
    _oSource = oSource;

    bo = goFactory.copyOf( bo );
    bo.translate( dTranslateX, dTranslateY );
    bo.scale( dScale );

    Rectangle rect = new Rectangle( (int) bo.getLeft( ),
            (int) bo.getTop( ),
            (int) bo.getWidth( ),
            (int) bo.getHeight( ) );

    Region sh = new Region( );
    sh.add( rect );
    if ( clipping != null )
    {
        sh.intersect( clipping );
    }
    _ac = ac;

    this.region = sh;
}