draw.controller.handler

Class CreateHandler

java.lang.Object

draw.controller.handler.Handler

draw.controller.handler.CreateHandler

All Implemented Interfaces:

IActionInterface

public class CreateHandler
extends Handler

Field Summary

Fields inherited from interface draw.controller.IActionInterface

NoAnchor, NorthEastAnchor, NorthWestAnchor, SouthEastAnchor, SouthWestAnchor

Constructor Summary

Constructors

Constructor and Description
CreateHandler(Model model, DrawingPalette view)

Method Summary

Modifier and Type	Method and Description
boolean	complete(java.awt.Point pt, int modifiers, java.util.Optional<Element> elt) Add the given object to the actual model.
boolean	drag(java.awt.Point starting, int modifiers, java.util.Optional<Element> elt, java.awt.Point current) Act on the mouse drag.
void	paint(java.awt.Graphics g) Each handler gets the chance to override and provide specific paint capabilities after elements are drawn.
boolean	start(java.awt.Point start, int modifiers, java.util.Optional<Element> elt) Initiate the beginning of a drag action.

Methods inherited from class draw.controller.handler.Handler

completeAnchor, dragAnchor, getNext, isInterested, move, setNext, startAnchor

Methods inherited from class java.lang.Object

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

Constructor Detail

CreateHandler

public CreateHandler(Model model,
                     DrawingPalette view)

Method Detail

start

public boolean start(java.awt.Point start,
                     int modifiers,
                     java.util.Optional<Element> elt)

Initiate the beginning of a drag action. Since draw.3 creates element with applied style from view. Might be over an existing element -- might be over empty space.

Specified by:

start in interface IActionInterface

Overrides:

start in class Handler

Parameters:

start - starting an element action at this mouse location

modifiers - keyboard modifiers in effect

elt - optional element in play

Returns:

whether mouse action was processed

complete

public boolean complete(java.awt.Point pt,
                        int modifiers,
                        java.util.Optional<Element> elt)

Add the given object to the actual model.

Specified by:

complete in interface IActionInterface

Overrides:

complete in class Handler

Parameters:

pt - ending mouse location of this mouse action

modifiers - keyboard modifiers in effect

elt - optional element in play

Returns:

whether mouse action was processed

drag

public boolean drag(java.awt.Point starting,
                    int modifiers,
                    java.util.Optional<Element> elt,
                    java.awt.Point current)

Description copied from interface: IActionInterface

Act on the mouse drag. Pass along modifiers (SHIFT, CONTROL, etc...).

Specified by:

drag in interface IActionInterface

Overrides:

drag in class Handler

Parameters:

starting - original starting mouse location of this drag action

modifiers - keyboard modifiers in effect

elt - optional element in play

current - current mouse location

Returns:

whether mouse action was processed

paint

public void paint(java.awt.Graphics g)

Description copied from class: Handler

Each handler gets the chance to override and provide specific paint capabilities after elements are drawn.

Specified by:

paint in interface IActionInterface

Overrides:

paint in class Handler

Parameters:

g - Graphics context into which to draw whatever is necessary based on the tool