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package org.eclipse.swt.examples.paint;
/*
* (c) Copyright IBM Corp. 2000, 2002.
* This file is made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*/
import org.eclipse.swt.graphics.*;
/**
* Superinterface for all drawing objects.
* All drawing objects know how to render themselved to the screen and can draw a
* temporary version of themselves for previewing the general appearance of the
* object onscreen before it gets committed.
*/
public abstract class Figure {
/**
* Draws this object.
*
* @param fdc a parameter block specifying drawing-related information
*/
public abstract void draw(FigureDrawContext fdc);
/**
* Computes the damaged screen region caused by drawing this object (imprecise), then
* appends it to the supplied region.
*
* @param fdc a parameter block specifying drawing-related information
* @param region a region to which additional damage areas will be added
*/
public abstract void addDamagedRegion(FigureDrawContext fdc, Region region);
}
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