fdda.graphics.java2d
Class ComponentSelection

java.lang.Object
  |
  +--fdda.graphics.java2d.Component
        |
        +--fdda.graphics.java2d.Container
              |
              +--fdda.graphics.java2d.ComponentSelection

All Implemented Interfaces:

Cloneable, Component, Container, Selection

public class ComponentSelection

extends Container

implements Selection

Implementation of the selection interface as a Container subclass.

Author:

Jörg Rüdenauer

Nested Class Summary

(package private) class

ComponentSelection.SelectionIterator An iterator on the selection, not allowing any modifications.

Field Summary

Fields inherited from class fdda.graphics.java2d.Container

elements

Fields inherited from class fdda.graphics.java2d.Component

COLOR_NORMAL, COLOR_SELECTED, dirtyShape, selected, shape, x, y

Fields inherited from interface fdda.graphics.Component

SEL_ALL, SEL_EQUALS, SEL_MOVABLES, SEL_NOTHING

Constructor Summary

ComponentSelection()
Constructor.

Method Summary

void	add(SelectionListener l) Adds a listener
void	addElement(Component element, SelectionModifier sm) Adds a component to the selection
void	clear(SelectionModifier sm) Removes all components from the selection.
protected void	fireSelectionChanged() Informs the listeners that the selection has changed
Component	getSelectedComponent() If exactly one component is selected, this component is returned, else null.
Iterator	getSelectionIterator() Returns an iterator over the components in the selection.
void	remove(SelectionListener l) Removes a listener
void	removeElement(Component element, SelectionModifier sm) Removes a component from the selection
void	replaceWith(Component element, SelectionModifier sm) Replaces the current selection with another component

Methods inherited from class fdda.graphics.java2d.Container

addElement, calcShape, clear, clone, deselect, draw, flatten, getIterator, getSize, getX, getY, hasElement, isFlatteningAllowed, isMovable, move, removeElement, select, selectableWith, setGraphicalSystem, visit

Methods inherited from class fdda.graphics.java2d.Component

getGraphicalSystem, getShape, isSelected, recalculateShape, setGraphicalSystem, setXY

Methods inherited from class java.lang.Object

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

Methods inherited from interface fdda.graphics.Selection

getShape, hasElement

Methods inherited from interface fdda.graphics.Component

getGraphicalSystem, getShape, isSelected, recalculateShape, setGraphicalSystem, setXY

Constructor Detail

ComponentSelection

public ComponentSelection()

Constructor. The selection is initially empty.

Method Detail

add

public void add(SelectionListener l)

Description copied from interface: Selection

Adds a listener

Specified by:

add in interface Selection

Parameters:

l - the listener

remove

public void remove(SelectionListener l)

Description copied from interface: Selection

Removes a listener

Specified by:

remove in interface Selection

Parameters:

l - the listener

fireSelectionChanged

protected final void fireSelectionChanged()

Informs the listeners that the selection has changed

getSelectionIterator

public Iterator getSelectionIterator()

Description copied from interface: Selection

Returns an iterator over the components in the selection. The iterator is a constant iterator, i.e., you can't modify the selection through it.

Specified by:

getSelectionIterator in interface Selection

Returns:

an iterator

getSelectedComponent

public Component getSelectedComponent()

Description copied from interface: Selection

If exactly one component is selected, this component is returned, else null.

Specified by:

getSelectedComponent in interface Selection

Returns:

the selected component or null

addElement

public void addElement(Component element,
                       SelectionModifier sm)

Description copied from interface: Selection

Adds a component to the selection

Specified by:

addElement in interface Selection

Parameters:

element - the component

sm - the object that wants to modify the selection (a small 'proof')

removeElement

public void removeElement(Component element,
                          SelectionModifier sm)

Description copied from interface: Selection

Removes a component from the selection

Specified by:

removeElement in interface Selection

Parameters:

element - the component

sm - the object that wants to modify the selection (a small 'proof')

clear

public void clear(SelectionModifier sm)

Description copied from interface: Selection

Removes all components from the selection.

Specified by:

clear in interface Selection

Parameters:

sm - the object that wants to modify the selection (a small 'proof')

replaceWith

public void replaceWith(Component element,
                        SelectionModifier sm)

Description copied from interface: Selection

Replaces the current selection with another component

Specified by:

replaceWith in interface Selection

Parameters:

element - the component

sm - the object that wants to modify the selection (a small 'proof')