flatscape.tool
Class RotateCanvasTool.RotateManipulator

java.lang.Object
  |
  +--manifold.base.ManipulatorAdaptor
        |
        +--flatscape.tool.RotateCanvasTool.RotateManipulator

All Implemented Interfaces:

Manipulator

Enclosing class:

RotateCanvasTool

public class RotateCanvasTool.RotateManipulator

extends ManipulatorAdaptor

Implementation of Manipulator interface for the Rotate Canvas Tool.

Constructor Summary

RotateCanvasTool.RotateManipulator()

Method Summary

Command	grasp(java.lang.Object event) Saves the original canvas transformation, starting point and center of canvas
Command	manipulate(java.lang.Object event) Finds angle of rotation around saved center, and modifies canvas rotation

Methods inherited from class manifold.base.ManipulatorAdaptor

click, effect

Methods inherited from class java.lang.Object

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

Constructor Detail

RotateCanvasTool.RotateManipulator

public RotateCanvasTool.RotateManipulator()

Method Detail

grasp

public Command grasp(java.lang.Object event)

Saves the original canvas transformation, starting point and center of canvas

Specified by:

grasp in interface Manipulator

Overrides:

grasp in class ManipulatorAdaptor

Parameters:

event - event object encapsulation the information received from the input device

Returns:

null

manipulate

public Command manipulate(java.lang.Object event)

Finds angle of rotation around saved center, and modifies canvas rotation

Specified by:

manipulate in interface Manipulator

Overrides:

manipulate in class ManipulatorAdaptor

Parameters:

event - event object encapsulation the information received from the input device

Returns:

null