org.jdrawing
Class DefaultDrawingModelCache

java.lang.Object
  org.jdrawing.AbstractDrawingModelCache
      org.jdrawing.DefaultDrawingModelCache

All Implemented Interfaces:

DrawingModelCache, DrawingModelListener, java.util.EventListener

public class DefaultDrawingModelCache

extends AbstractDrawingModelCache

Default implementation of DrawingModelCache interface. This implementation does not do any optimizations, except for optimizations supported by IndexedDrawingModel interface.

Constructor Summary

DefaultDrawingModelCache()

Method Summary

void	elementsAdded(DrawingModelEvent event) Invoked after elements have been inserted into the model.
void	elementsChanged(DrawingModelEvent event) Invoked after elements have been changed in some way.
void	elementsRemoved(DrawingModelEvent event) Invoked after elements have been removed from the model.
java.lang.Object[]	getElementsForPoint(java.awt.geom.Point2D point) Returns elements which contains a given point.
java.lang.Object[]	getElementsForRectangle(java.awt.geom.Rectangle2D rectangle) Returns elements neccessary for repainting given area.
java.awt.geom.Rectangle2D	getModelBounds2D() Returns the high precision bounding box of all elements of the model.
void	modelChanged(DrawingModelEvent event) Invoked after the model has drastically changed in some way.
void	setElementRenderer(DrawingElementRenderer renderer) Sets the DrawingElementRenderer that will be used this cache.
void	setModel(DrawingModel model) Sets the DrawingModel that will be cached by this cache.

Methods inherited from class org.jdrawing.AbstractDrawingModelCache

addDrawingModelCacheListener, fireAreaChanged, fireDrawingChanged, getDrawingModelCacheListeners, getElementRenderer, getModel, getModelBounds, removeDrawingModelCacheListener

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultDrawingModelCache

public DefaultDrawingModelCache()

Method Detail

setModel

public void setModel(DrawingModel model)

Sets the DrawingModel that will be cached by this cache.

Specified by:

setModel in interface DrawingModelCache

Overrides:

setModel in class AbstractDrawingModelCache

Parameters:

model - the DrawingModel that is to be cached

setElementRenderer

public void setElementRenderer(DrawingElementRenderer renderer)

Sets the DrawingElementRenderer that will be used this cache. Renderer is user to obtain bounds of element of the model.

Specified by:

setElementRenderer in interface DrawingModelCache

Overrides:

setElementRenderer in class AbstractDrawingModelCache

Parameters:

renderer - the DrawingElementRenderer that is to be used

getModelBounds2D

public java.awt.geom.Rectangle2D getModelBounds2D()

Returns the high precision bounding box of all elements of the model.

Returns:

the high precision bounding box of all elements of the model

getElementsForRectangle

public java.lang.Object[] getElementsForRectangle(java.awt.geom.Rectangle2D rectangle)

Returns elements neccessary for repainting given area. Elements are returned in order suitable for painting.

Parameters:

rectangle - area that will be repainted

Returns:

elements neccessary for repainting

getElementsForPoint

public java.lang.Object[] getElementsForPoint(java.awt.geom.Point2D point)

Returns elements which contains a given point. Elements are returned in order, suitable for painting.

Parameters:

point - the Point2D

Returns:

elements containing given point

elementsAdded

public void elementsAdded(DrawingModelEvent event)

Invoked after elements have been inserted into the model. Notifies all listeners that the area occupied by the inserted element have been changed.

Specified by:

elementsAdded in interface DrawingModelListener

Overrides:

elementsAdded in class AbstractDrawingModelCache

Parameters:

event - DrawingModelEvent object encapsulating event information

elementsRemoved

public void elementsRemoved(DrawingModelEvent event)

Invoked after elements have been removed from the model. Notifies all listeners that the area occupied by the removed element have been changed.

Specified by:

elementsRemoved in interface DrawingModelListener

Overrides:

elementsRemoved in class AbstractDrawingModelCache

Parameters:

event - DrawingModelEvent object encapsulating event information

elementsChanged

public void elementsChanged(DrawingModelEvent event)

Invoked after elements have been changed in some way. Notifies all listeners that drawing has changed.

Specified by:

elementsChanged in interface DrawingModelListener

Overrides:

elementsChanged in class AbstractDrawingModelCache

Parameters:

event - DrawingModelEvent object encapsulating event information

modelChanged

public void modelChanged(DrawingModelEvent event)

Invoked after the model has drastically changed in some way. Notifies all listeners that drawing has changed.

Specified by:

modelChanged in interface DrawingModelListener

Overrides:

modelChanged in class AbstractDrawingModelCache

Parameters:

event - DrawingModelEvent object encapsulating event information