org.vectomatic.common.model
Class DrawingModel

java.lang.Object
  org.vectomatic.common.model.DrawingModel

public class DrawingModel
extends Object

Class to represent a drawing. Contains the collection of shapes in the drawing stored in a linked list.

Nested Class Summary

protected class	DrawingModel.AscendingIterator
protected static class	DrawingModel.AscendingNodeComparator
protected class	DrawingModel.DescendingIterator
protected static class	DrawingModel.DescendingNodeComparator
protected class	DrawingModel.Node

Field Summary

protected DrawingModel.AscendingIterator	_ascIterator Linked list forward traversal (back to front)
protected DrawingModel.DescendingIterator	_descIterator Linked list reverse traversal (front to back)
protected List<IDrawingModelListener>	_drawingModelListeners
protected DrawingModel.Node	_head Shape linked list head node
protected Set<Shape>	_shapeSet Temporary set used for ordering computations
protected Map<Shape,DrawingModel.Node>	_shapeToNode A Map to retrieve the linked list node which contains a shape.
protected DrawingModel.Node	_tail Shape linked list tail node
protected static Comparator<DrawingModel.Node>	ORDER_ASCENDING To sort Node based on their depth in ascending order
protected static Comparator<DrawingModel.Node>	ORDER_DESCENDING To sort Node based on their depth in descending order

Constructor Summary

DrawingModel()

Method Summary

void	addDrawingModelListener(IDrawingModelListener listener)
void	addShape(Shape shape)
List<Float>	bringForward(List<Shape> shapes)
List<Float>	bringToFront(List<Shape> shapes)
boolean	canBringForward(List<Shape> shapes)
boolean	canBringToFront(List<Shape> shapes)
boolean	canSendBackward(List<Shape> shapes)
boolean	canSendToBack(List<Shape> shapes)
void	clear()
boolean	contains(Shape shape)
int	count()
void	fireModelHasChanged()
void	fromShapeArray(Shape[] shapeArray)
Iterator<Shape>	iterator()
void	removeDrawingModelListener(IDrawingModelListener listener)
void	removeShape(Shape shape)
void	reorder(List<Shape> shapes, List<Float> orders)
Iterator<Shape>	reverseIterator()
List<Float>	sendBackward(List<Shape> shapes)
List<Float>	sendToBack(List<Shape> shapes)
protected DrawingModel.Node[]	toNodeArray(List<Shape> shapes)
Shape[]	toShapeArray()

Methods inherited from class java.lang.Object

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

Field Detail

_drawingModelListeners

protected List<IDrawingModelListener> _drawingModelListeners

_head

protected DrawingModel.Node _head

Shape linked list head node

_tail

protected DrawingModel.Node _tail

Shape linked list tail node

_shapeToNode

protected Map<Shape,DrawingModel.Node> _shapeToNode

A Map to retrieve the linked list node which contains a shape.

_ascIterator

protected DrawingModel.AscendingIterator _ascIterator

Linked list forward traversal (back to front)

_descIterator

protected DrawingModel.DescendingIterator _descIterator

Linked list reverse traversal (front to back)

ORDER_ASCENDING

protected static final Comparator<DrawingModel.Node> ORDER_ASCENDING

To sort Node based on their depth in ascending order

ORDER_DESCENDING

protected static final Comparator<DrawingModel.Node> ORDER_DESCENDING

To sort Node based on their depth in descending order

_shapeSet

protected Set<Shape> _shapeSet

Temporary set used for ordering computations

Constructor Detail

DrawingModel

public DrawingModel()

Method Detail

addDrawingModelListener

public void addDrawingModelListener(IDrawingModelListener listener)

removeDrawingModelListener

public void removeDrawingModelListener(IDrawingModelListener listener)

fireModelHasChanged

public void fireModelHasChanged()

addShape

public void addShape(Shape shape)

removeShape

public void removeShape(Shape shape)

clear

public void clear()

reorder

public void reorder(List<Shape> shapes,
                    List<Float> orders)

count

public int count()

iterator

public Iterator<Shape> iterator()

reverseIterator

public Iterator<Shape> reverseIterator()

toNodeArray

protected DrawingModel.Node[] toNodeArray(List<Shape> shapes)

canBringToFront

public boolean canBringToFront(List<Shape> shapes)

canSendToBack

public boolean canSendToBack(List<Shape> shapes)

canBringForward

public boolean canBringForward(List<Shape> shapes)

canSendBackward

public boolean canSendBackward(List<Shape> shapes)

bringToFront

public List<Float> bringToFront(List<Shape> shapes)

sendToBack

public List<Float> sendToBack(List<Shape> shapes)

bringForward

public List<Float> bringForward(List<Shape> shapes)

sendBackward

public List<Float> sendBackward(List<Shape> shapes)

contains

public boolean contains(Shape shape)

toShapeArray

public Shape[] toShapeArray()

fromShapeArray

public void fromShapeArray(Shape[] shapeArray)