uk.ac.ic.doc.automed.p2p.gui.graph
Class CommonScreenHandler

java.lang.Object
  java.awt.event.MouseAdapter
      uk.ac.ic.doc.automed.p2p.gui.graph.CommonScreenHandler

All Implemented Interfaces:

java.awt.event.KeyListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.event.MouseWheelListener, java.util.EventListener

public class CommonScreenHandler
extends java.awt.event.MouseAdapter
implements java.awt.event.MouseMotionListener, java.awt.event.KeyListener

Nested Class Summary

(package private) class

CommonScreenHandler.InteractiveState represents the state transition of a mouse

Field Summary

private java.util.List	activeShapes
private GClipboard	clipboard
private boolean	ctrlDown
private java.awt.Point	currentPoint
private boolean	debug
private java.awt.Cursor	defaultCursor
private java.awt.Image	draggedCursor
private java.awt.Image	draggedCursorGUI
private GraphUI	gui
private GraphViz	gviz
private CommonScreenHandler.InteractiveState	istate
private GEventReceiver	mouseDragRcv
private java.util.List	onClickShapes
private boolean	shiftDown
private java.lang.Object	source
private java.awt.Toolkit	toolKit

Constructor Summary

CommonScreenHandler(GraphViz gviz, GraphUI gui, GClipboard clipboard)

Method Summary

protected void	addActiveShape(GShape s) Register a shape as an active shape.
protected void	addMouseOverShape(GShape s)
void	clear()
private void	debugPrint(java.lang.String msg)
GShape	getActiveShape() Find all the shapes that the user has clicke on and return them
java.util.Collection	getActiveShapes() Return all shapes that are currently selected by the user (i.e.
java.awt.Point	getPoint()
private void	handleDoubleClicked()
private void	handleDragStarted()
private void	handleDragStopped()
private void	handleInDragging()
private java.lang.Object	handleKeywordDrag(GraphUI gui, java.awt.Point p, java.lang.Object draggedObj)
private void	handleMoved()
private void	handleMultipleShapeSelected()
private void	handleOnClick() Handle the event when the user clicks on a shape
private void	handleOnShape()
private void	handleRightClicked()
private void	handleShapeDeselected()
private void	handleShapeDrag(GraphUI gui, java.awt.Point p, GShape draggedObj)
private void	handleShapeGroupDrag(GraphUI gui, java.awt.Point newPoint, GShape draggedObj, java.util.Collection shapeGrp)
private java.lang.Object	invokeShapeGroupOnClick(java.util.Collection activeShapes) invoke actions to be performed for a shape group
private java.lang.Object	invokeShapeGroupOnMouseOver(java.util.Collection activeShapes) invoke actions to be performed for a shape group
java.lang.Object	invokeShapeOnClick(GShape shape) invoke actions to be performed for a shape group
java.lang.Object	invokeShapeOnDoubleClick(GShape shape) invoke actions to be performed for a shape group
GShape	invokeShapeOnMouseOver(GShape shape) Perform the designated actions on an active shape
boolean	isCtrlDown()
boolean	isShiftDown()
void	keyPressed(java.awt.event.KeyEvent e) Invoked when a key has been pressed.
void	keyReleased(java.awt.event.KeyEvent e) Invoked when a key has been released.
void	keyTyped(java.awt.event.KeyEvent e) Invoked when a key has been typed.
void	mouseClicked(java.awt.event.MouseEvent e)
void	mouseDragged(java.awt.event.MouseEvent e)
void	mouseMoved(java.awt.event.MouseEvent e)
void	mouseReleased(java.awt.event.MouseEvent e)
void	toggleOnClick(GShape shape, boolean state, boolean repaint) Update the state of a shape.
private void	updateMouseKeyState(java.awt.event.MouseEvent e)

Methods inherited from class java.awt.event.MouseAdapter

mouseEntered, mouseExited, mousePressed, mouseWheelMoved

Methods inherited from class java.lang.Object

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

Field Detail

debug

private boolean debug

gviz

private GraphViz gviz

gui

private GraphUI gui

mouseDragRcv

private GEventReceiver mouseDragRcv

clipboard

private transient GClipboard clipboard

draggedCursor

private java.awt.Image draggedCursor

draggedCursorGUI

private java.awt.Image draggedCursorGUI

defaultCursor

private java.awt.Cursor defaultCursor

toolKit

private java.awt.Toolkit toolKit

istate

private CommonScreenHandler.InteractiveState istate

activeShapes

private java.util.List activeShapes

onClickShapes

private java.util.List onClickShapes

ctrlDown

private boolean ctrlDown

shiftDown

private boolean shiftDown

source

private java.lang.Object source

currentPoint

private java.awt.Point currentPoint

Constructor Detail

CommonScreenHandler

public CommonScreenHandler(GraphViz gviz,
                           GraphUI gui,
                           GClipboard clipboard)

Method Detail

handleMoved

private void handleMoved()

handleOnShape

private void handleOnShape()

handleOnClick

private void handleOnClick()

Handle the event when the user clicks on a shape

handleMultipleShapeSelected

private void handleMultipleShapeSelected()

handleShapeDeselected

private void handleShapeDeselected()

handleDragStarted

private void handleDragStarted()

handleInDragging

private void handleInDragging()

handleDragStopped

private void handleDragStopped()

handleRightClicked

private void handleRightClicked()

handleDoubleClicked

private void handleDoubleClicked()

mouseClicked

public void mouseClicked(java.awt.event.MouseEvent e)

Specified by:

mouseClicked in interface java.awt.event.MouseListener

Overrides:

mouseClicked in class java.awt.event.MouseAdapter

updateMouseKeyState

private void updateMouseKeyState(java.awt.event.MouseEvent e)

mouseReleased

public void mouseReleased(java.awt.event.MouseEvent e)

Specified by:

mouseReleased in interface java.awt.event.MouseListener

Overrides:

mouseReleased in class java.awt.event.MouseAdapter

mouseDragged

public void mouseDragged(java.awt.event.MouseEvent e)

Specified by:

mouseDragged in interface java.awt.event.MouseMotionListener

Overrides:

mouseDragged in class java.awt.event.MouseAdapter

mouseMoved

public void mouseMoved(java.awt.event.MouseEvent e)

Specified by:

mouseMoved in interface java.awt.event.MouseMotionListener

Overrides:

mouseMoved in class java.awt.event.MouseAdapter

keyTyped

public void keyTyped(java.awt.event.KeyEvent e)

Invoked when a key has been typed. See the class description for KeyEvent for a definition of a key typed event.

Specified by:

keyTyped in interface java.awt.event.KeyListener

keyPressed

public void keyPressed(java.awt.event.KeyEvent e)

Invoked when a key has been pressed. See the class description for KeyEvent for a definition of a key pressed event.

Specified by:

keyPressed in interface java.awt.event.KeyListener

keyReleased

public void keyReleased(java.awt.event.KeyEvent e)

Invoked when a key has been released. See the class description for KeyEvent for a definition of a key released event.

Specified by:

keyReleased in interface java.awt.event.KeyListener

invokeShapeOnMouseOver

public GShape invokeShapeOnMouseOver(GShape shape)

Perform the designated actions on an active shape

invokeShapeGroupOnMouseOver

private java.lang.Object invokeShapeGroupOnMouseOver(java.util.Collection activeShapes)

invoke actions to be performed for a shape group

invokeShapeOnClick

public java.lang.Object invokeShapeOnClick(GShape shape)

invoke actions to be performed for a shape group

invokeShapeOnDoubleClick

public java.lang.Object invokeShapeOnDoubleClick(GShape shape)

invoke actions to be performed for a shape group

invokeShapeGroupOnClick

private java.lang.Object invokeShapeGroupOnClick(java.util.Collection activeShapes)

invoke actions to be performed for a shape group

handleKeywordDrag

private java.lang.Object handleKeywordDrag(GraphUI gui,
                                           java.awt.Point p,
                                           java.lang.Object draggedObj)

handleShapeDrag

private void handleShapeDrag(GraphUI gui,
                             java.awt.Point p,
                             GShape draggedObj)

handleShapeGroupDrag

private void handleShapeGroupDrag(GraphUI gui,
                                  java.awt.Point newPoint,
                                  GShape draggedObj,
                                  java.util.Collection shapeGrp)

getActiveShape

public GShape getActiveShape()

Find all the shapes that the user has clicke on and return them

getPoint

public java.awt.Point getPoint()

getActiveShapes

public java.util.Collection getActiveShapes()

Return all shapes that are currently selected by the user (i.e. the user has actually clicked on them)

addActiveShape

protected void addActiveShape(GShape s)

Register a shape as an active shape. This is invoked by methods that needed to manually activate one or more shapes as active

Parameters:

s -

addMouseOverShape

protected void addMouseOverShape(GShape s)

toggleOnClick

public void toggleOnClick(GShape shape,
                          boolean state,
                          boolean repaint)

Update the state of a shape.

Parameters:

shape -

state -

repaint -

isShiftDown

public boolean isShiftDown()

isCtrlDown

public boolean isCtrlDown()

clear

public void clear()

debugPrint

private void debugPrint(java.lang.String msg)