Class Handle

Defined in: handles.js.

Class Summary
Constructor Attributes	Constructor Name and Description
	Handle(type) Handles are created on-the-fly for a figure.

Field Summary
Field Attributes	Field Name and Description
<static>	Handle.connectorTypes It's a (static) vector of connector types
<static>	Handle.RADIUS Default handle radius
	type Type of Handle
<static>	Handle.types It's a (static) vector of handle types Note: R - stand for rotation Note: More handles might be added in the future : like handles to increase the number of edges for a hexagone Those handles will be specific for a figure
	visible Used by Connector handles, to not display redundant handles (i.e.
	x The center of the circle (x coordinates)
	y The center of the circle (y coordinates)

Method Summary
Method Attributes	Method Name and Description
	action(lastMove, newX, newY) Handle an action.
	actionConnector(lastMove, newX, newY) Handle actions for Connector
	actionFigure(lastMove, newX, newY) Handle actions for Figure
	contains(x, y) See if the handle contains a point
	equals(group) Compares to another Handle
	getBounds() Get a handle bounds
	getCursor() Get the specific cursor for this handle.
<static>	Handle.load(o) Creates a {Handle} out of JSON parsed object
<static>	Handle.loadArray(v) Creates an array of handles from an array of {JSONObject}s
	paint(context) This is the method you have to call to paint a handler All handles will be circles.
	transform(matrix) Transform the Handle through a matrix

Class Detail

Handle(type)

Handles are created on-the-fly for a figure. They are completelly managed by the HandleManager Each handle is responsable for an action. The {Handle} does not need to keep a reference to the parent shape as the HandleManager will do that.

Parameters:
{String} type: - the type of handle

Field Detail

<static> Handle.connectorTypes

It's a (static) vector of connector types

<static> Handle.RADIUS

Default handle radius

type

Type of Handle

<static> Handle.types

It's a (static) vector of handle types Note: R - stand for rotation Note: More handles might be added in the future : like handles to increase the number of edges for a hexagone Those handles will be specific for a figure

visible

Used by Connector handles, to not display redundant handles (i.e. when they are on the same line)

The center of the circle (x coordinates)

The center of the circle (y coordinates)

Method Detail

action(lastMove, newX, newY)

Handle an action. Simply dispatch to the correct handler

Parameters:
{Array} lastMove: - an array that will hold [x,y] of last x & y coordinates
{Number} newX: - new X coordinate
{Number} newY: - new Y coordinate

actionConnector(lastMove, newX, newY)

Handle actions for Connector

Parameters:
{Array} lastMove: - an array that will hold [x,y] of last x & y coordinates
{Number} newX: - new X coordinate
{Number} newY: - new Y coordinate

actionFigure(lastMove, newX, newY)

Handle actions for Figure

Parameters:
{Array} lastMove: - an array that will hold [x,y] of last x & y coordinates
{Number} newX: - new X coordinate
{Number} newY: - new Y coordinate

contains(x, y)

See if the handle contains a point

Parameters:
{Number} x: - the x coordinate of the point
{Number} y: - the y coordinate of the point

{Boolean} equals(group)

Compares to another Handle

Parameters:
{Handle} group: - - the other glue

Returns:: {Boolean} - true if equals, false otherwise

getBounds()

Get a handle bounds

getCursor()

Get the specific cursor for this handle. Cursor is ONLY a visual clue for the user to know how to move his mouse. Behaviour: If North handle is in the North we have 'Up/Down arrow" cursor If North handle is in the West (so it has "Left/Right arrow") (or anything different that North) we have 'Left/Right arrow' cursor but the figure will expand as follows: - rotate back to initial position - expand North - rotate back to current position - repaint
Author: Zack Newsham , Alex Gheorghiu .

See:: http://www.w3schools.com/css/pr_class_cursor.asp for cusor values

<static> {Handle} Handle.load(o)

Creates a {Handle} out of JSON parsed object
Author: Alex Gheorghiu .

Parameters:
{JSONObject} o: - the JSON parsed object

Returns:: {Handle} a newly constructed Handle

<static> Handle.loadArray(v)

Creates an array of handles from an array of {JSONObject}s
Author: Alex Gheorghiu .

Parameters:
{Array} v: - the array of JSONObjects

Returns:: an {Array} of {Handle}s

paint(context)

This is the method you have to call to paint a handler All handles will be circles...so we avoid to much of the computing for rectangle handles They will have a filling color (green) and a stoke (black)

Parameters:
{Context} context: - the 2D context

transform(matrix)

Transform the Handle through a matrix

Parameters:
{Matrix} matrix: - the matrix that will perform the transformation

Classes

Class Handle