LineSelectionEventHandler

java.lang.Object
- edu.umd.cs.piccolo.event.PBasicInputEventHandler
- - edu.umd.cs.piccolo.event.PDragSequenceEventHandler
  - - edu.umd.cs.piccolox.event.PSelectionEventHandler
    - - at.tuwien.ifs.somtoolbox.apps.viewer.handlers.OrderedPSelectionEventHandler
      - at.tuwien.ifs.somtoolbox.apps.viewer.handlers.LineSelectionEventHandler

All Implemented Interfaces:

edu.umd.cs.piccolo.event.PInputEventListener, java.util.EventListener
```
public class LineSelectionEventHandler
extends OrderedPSelectionEventHandler
```
Implements the line selection model, everything below a drawn line is selected.

Version:

$Id: LineSelectionEventHandler.java 3888 2010-11-02 17:42:53Z frank $

Author:

Robert Neumayer

Nested Class Summary
- Nested classes/interfaces inherited from class edu.umd.cs.piccolox.event.PSelectionEventHandler
  edu.umd.cs.piccolox.event.PSelectionEventHandler.BoundsFilter

Field Summary

Fields
Modifier and Type	Field and Description
`private java.util.HashMap<java.lang.Object,java.lang.Boolean>`	`allItems`
`static float`	`BLUR_FACTOR`
`(package private) edu.umd.cs.piccolox.nodes.PLine`	`currentLine`
`(package private) static java.awt.geom.Point2D`	`endPoint`
`(package private) static java.awt.geom.Point2D`	`lastPoint`
`private java.util.Vector<edu.umd.cs.piccolo.PNode>`	`lineParts`
`private edu.umd.cs.piccolo.PNode`	`marqueeParent`
`(package private) static java.awt.geom.Point2D`	`nextPoint`
`private edu.umd.cs.piccolo.PNode`	`pressNode`
`private java.util.List<edu.umd.cs.piccolo.PNode>`	`selectableParents`
`static java.lang.String`	`SELECTION_CHANGED_NOTIFICATION`
`private java.lang.String`	`selectionStatusString`
`(package private) static java.awt.geom.Point2D`	`startPoint`

Fields inherited from class at.tuwien.ifs.somtoolbox.apps.viewer.handlers.OrderedPSelectionEventHandler
currentSelection

Constructor Summary

Constructors
Constructor and Description
`LineSelectionEventHandler(edu.umd.cs.piccolo.PNode marqueeParent, edu.umd.cs.piccolo.PNode selectableParent)` Creates a selection event handler.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`decorateSelectedNode(edu.umd.cs.piccolo.PNode node)`
`void`	`deleteOldLine()` delete the old selection / line
`protected void`	`drag(edu.umd.cs.piccolo.event.PInputEvent e)`
`protected void`	`endMarqueeSelection(edu.umd.cs.piccolo.event.PInputEvent e)`
`protected void`	`endStandardSelection(edu.umd.cs.piccolo.event.PInputEvent e)`
`void`	`init()`
`protected void`	`initializeMarquee(edu.umd.cs.piccolo.event.PInputEvent e)`
`protected boolean`	`isMarqueeSelection(edu.umd.cs.piccolo.event.PInputEvent pie)`
`protected boolean`	`onSelection(GeneralUnitPNode upn, java.awt.geom.Point2D selectedPoint)` check if the given Point lies on the given UnitPNode
`protected void`	`startDrag(edu.umd.cs.piccolo.event.PInputEvent e)`
`protected void`	`startMarqueeSelection(edu.umd.cs.piccolo.event.PInputEvent e)`
`void`	`undecorateSelectedNode(edu.umd.cs.piccolo.PNode node)`
`protected void`	`updateWhatever(edu.umd.cs.piccolo.event.PInputEvent e)` adds the node specified by the event e to the current selection (if it is not selected already)

Methods inherited from class at.tuwien.ifs.somtoolbox.apps.viewer.handlers.OrderedPSelectionEventHandler
alreadySelected, getSelection, select, select, select, unselect, unselect, unselectAll

Methods inherited from class edu.umd.cs.piccolox.event.PSelectionEventHandler
addSelectableParent, computeMarqueeSelection, computeOptionMarqueeSelection, createNodeFilter, dragActivityStep, dragStandardSelection, endDrag, getMarqueeBounds, getMarqueePaint, getMarqueePaintTransparency, getSelectableParents, getSelectionReference, getSupportDeleteKey, initializeSelection, isDeleteKeyActive, isOptionSelection, isSelectable, isSelected, keyPressed, removeSelectableParent, setDeleteKeyActive, setMarqueePaint, setMarqueePaintTransparency, setSelectableParent, setSelectableParents, startOptionMarqueeSelection, startStandardOptionSelection, startStandardSelection, updateMarquee

Methods inherited from class edu.umd.cs.piccolo.event.PDragSequenceEventHandler
dragActivityFinalStep, dragActivityFirstStep, getDragActivity, getMinDragStartDistance, getMousePressedCanvasPoint, isDragging, mouseDragged, mousePressed, mouseReleased, paramString, setIsDragging, setMinDragStartDistance, shouldStartDragInteraction, startDragActivity, stopDragActivity

Methods inherited from class edu.umd.cs.piccolo.event.PBasicInputEventHandler
acceptsEvent, getEventFilter, keyboardFocusGained, keyboardFocusLost, keyReleased, keyTyped, mouseClicked, mouseEntered, mouseExited, mouseMoved, mouseWheelRotated, mouseWheelRotatedByBlock, processEvent, setEventFilter, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - SELECTION_CHANGED_NOTIFICATION
```
public static final java.lang.String SELECTION_CHANGED_NOTIFICATION
```
    See Also:
    
    Constant Field Values
  - BLUR_FACTOR
```
public static final float BLUR_FACTOR
```
    See Also:
    
    Constant Field Values
  - selectionStatusString
```
private java.lang.String selectionStatusString
```
  - lineParts
```
private java.util.Vector<edu.umd.cs.piccolo.PNode> lineParts
```
  - selectableParents
```
private java.util.List<edu.umd.cs.piccolo.PNode> selectableParents
```
  - marqueeParent
```
private edu.umd.cs.piccolo.PNode marqueeParent
```
  - allItems
```
private java.util.HashMap<java.lang.Object,java.lang.Boolean> allItems
```
  - pressNode
```
private edu.umd.cs.piccolo.PNode pressNode
```
  - startPoint
```
static java.awt.geom.Point2D startPoint
```
  - lastPoint
```
static java.awt.geom.Point2D lastPoint
```
  - nextPoint
```
static java.awt.geom.Point2D nextPoint
```
  - endPoint
```
static java.awt.geom.Point2D endPoint
```
  - currentLine
```
edu.umd.cs.piccolox.nodes.PLine currentLine
```
- Constructor Detail
  - LineSelectionEventHandler
```
public LineSelectionEventHandler(edu.umd.cs.piccolo.PNode marqueeParent,
                                 edu.umd.cs.piccolo.PNode selectableParent)
```
    Creates a selection event handler.
    
    Parameters:
    
    marqueeParent - The node to which the event handler dynamically adds a marquee (temporarily) to represent the area being selected.
    
    selectableParent - The node whose children will be selected by this event handler.
- Method Detail
  - decorateSelectedNode
```
public void decorateSelectedNode(edu.umd.cs.piccolo.PNode node)
```
    Overrides:
    
    decorateSelectedNode in class edu.umd.cs.piccolox.event.PSelectionEventHandler
  - undecorateSelectedNode
```
public void undecorateSelectedNode(edu.umd.cs.piccolo.PNode node)
```
    Overrides:
    
    undecorateSelectedNode in class edu.umd.cs.piccolox.event.PSelectionEventHandler
  - init
```
public void init()
```
    Overrides:
    
    init in class OrderedPSelectionEventHandler
  - deleteOldLine
```
public void deleteOldLine()
```
    delete the old selection / line
  - startDrag
```
protected void startDrag(edu.umd.cs.piccolo.event.PInputEvent e)
```
    Overrides:
    
    startDrag in class OrderedPSelectionEventHandler
  - drag
```
protected void drag(edu.umd.cs.piccolo.event.PInputEvent e)
```
    Overrides:
    
    drag in class edu.umd.cs.piccolox.event.PSelectionEventHandler
  - isMarqueeSelection
```
protected boolean isMarqueeSelection(edu.umd.cs.piccolo.event.PInputEvent pie)
```
    Overrides:
    
    isMarqueeSelection in class edu.umd.cs.piccolox.event.PSelectionEventHandler
  - initializeMarquee
```
protected void initializeMarquee(edu.umd.cs.piccolo.event.PInputEvent e)
```
    Overrides:
    
    initializeMarquee in class edu.umd.cs.piccolox.event.PSelectionEventHandler
  - startMarqueeSelection
```
protected void startMarqueeSelection(edu.umd.cs.piccolo.event.PInputEvent e)
```
    Overrides:
    
    startMarqueeSelection in class edu.umd.cs.piccolox.event.PSelectionEventHandler
  - updateWhatever
```
protected void updateWhatever(edu.umd.cs.piccolo.event.PInputEvent e)
```
    adds the node specified by the event e to the current selection (if it is not selected already)
  - onSelection
```
protected boolean onSelection(GeneralUnitPNode upn,
                              java.awt.geom.Point2D selectedPoint)
```
    check if the given Point lies on the given UnitPNode
    
    Returns:
    
    - true if coordinates match, false if not
  - endMarqueeSelection
```
protected void endMarqueeSelection(edu.umd.cs.piccolo.event.PInputEvent e)
```
    Overrides:
    
    endMarqueeSelection in class edu.umd.cs.piccolox.event.PSelectionEventHandler
  - endStandardSelection
```
protected void endStandardSelection(edu.umd.cs.piccolo.event.PInputEvent e)
```
    Overrides:
    
    endStandardSelection in class edu.umd.cs.piccolox.event.PSelectionEventHandler

Class LineSelectionEventHandler

Nested Class Summary

Nested classes/interfaces inherited from class edu.umd.cs.piccolox.event.PSelectionEventHandler

Field Summary

Fields inherited from class at.tuwien.ifs.somtoolbox.apps.viewer.handlers.OrderedPSelectionEventHandler

Constructor Summary

Method Summary

Methods inherited from class at.tuwien.ifs.somtoolbox.apps.viewer.handlers.OrderedPSelectionEventHandler

Methods inherited from class edu.umd.cs.piccolox.event.PSelectionEventHandler

Methods inherited from class edu.umd.cs.piccolo.event.PDragSequenceEventHandler

Methods inherited from class edu.umd.cs.piccolo.event.PBasicInputEventHandler

Methods inherited from class java.lang.Object

Field Detail

SELECTION_CHANGED_NOTIFICATION

BLUR_FACTOR

selectionStatusString

lineParts

selectableParents

marqueeParent

allItems

pressNode

startPoint

lastPoint

nextPoint

endPoint

currentLine

Constructor Detail

LineSelectionEventHandler

Method Detail

decorateSelectedNode

undecorateSelectedNode

init

deleteOldLine

startDrag

drag

isMarqueeSelection

initializeMarquee

startMarqueeSelection

updateWhatever

onSelection

endMarqueeSelection

endStandardSelection