kaapo.project
Class DiagramComponent

java.lang.Object
  kaapo.Observable
      kaapo.project.ProjectComponent
          kaapo.project.DiagramComponent

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

Connection, Element

public abstract class DiagramComponent
extends ProjectComponent

Base class for elements and connections. Concrete elements and connections don't inherit from this class, but the subclasses of this class.

See Also:

Serialized Form

Nested Class Summary

static class

DiagramComponent.ComponentType

Nested classes/interfaces inherited from class kaapo.project.ProjectComponent

ProjectComponent.ObservableMessage

Field Summary

Fields inherited from class kaapo.project.ProjectComponent

attributeMap, attributePanel

Constructor Summary

DiagramComponent()

Method Summary

protected abstract DCGraphics	buildDCGraphics(DiagramComponentWrapper wrapper, ProjectManager pm) Build a new graphical representation of the element as DCGraphics.
abstract boolean	canMove(DiagramComponentWrapper wrapper) Tell whether the element can be moved by user.
abstract boolean	canResize(DiagramComponentWrapper wrapper) Tell whether the element can be resized by user.
abstract DiagramComponent.ComponentType	getComponentType() Get the basic type of the diagram component (element or connection).
abstract ImageIcon	getLargeIcon() Returns a 24*24 pixel icon of the diagram component type.
abstract boolean	isElement() Tell whether the diagram component is an element or a connection.

Methods inherited from class kaapo.project.ProjectComponent

addAttribute, addAttribute, buildAttributePanel, getAttribute, getAttributeMap, getAttributePanel, getSmallIcon, getTypeName, hasAttribute, removeAttribute, setAttribute

Methods inherited from class kaapo.Observable

addObserver, notifyObservers, notifyObservers, removeAllObservers, removeObserver, setChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

DiagramComponent

public DiagramComponent()

Method Detail

getLargeIcon

public abstract ImageIcon getLargeIcon()

Returns a 24*24 pixel icon of the diagram component type. The icon is used in element palette by the GUI.

Returns:

Icon

canResize

public abstract boolean canResize(DiagramComponentWrapper wrapper)

Tell whether the element can be resized by user.

Parameters:

wrapper - The wrapper in question. The wrapper is given as parameter because it may depend on the wrapper whether the component can be resized.

Returns:

True if element can be resized.

canMove

public abstract boolean canMove(DiagramComponentWrapper wrapper)

Tell whether the element can be moved by user.

Parameters:

wrapper - The wrapper in question. The wrapper is given as parameter because it may depend on the wrapper whether the component can be moved.

Returns:

True if element can be moved.

isElement

public abstract boolean isElement()

Tell whether the diagram component is an element or a connection.

Returns:

True if element, false if connection.

getComponentType

public abstract DiagramComponent.ComponentType getComponentType()

Get the basic type of the diagram component (element or connection).

Returns:

Basic type

buildDCGraphics

protected abstract DCGraphics buildDCGraphics(DiagramComponentWrapper wrapper,
                                              ProjectManager pm)

Build a new graphical representation of the element as DCGraphics. This method must always build a new instance.

Parameters:

wrapper - The wrapper containing the attributes of the element the differ between diagrams.

pm - Project manager

Returns:

New DCGraphics instance