backend
Class MouseHandler

java.lang.Object
  java.util.Observable
      backend.MouseHandler

public class MouseHandler
extends java.util.Observable

MouseHandler handles mouse clicks by determining the appropriate action to take depending on how it is set It is really only meant to interact with a SphereWorld

Constructor Summary

MouseHandler(SphereWorldModel theWorldModel, com.sun.j3d.utils.behaviors.vp.OrbitBehavior theRotator, InformationModel theInformation, javax.swing.JPanel theController)
The MouseHandler constructor takes a initalized SphereWorld to play with

Method Summary

void	addCircle(SphereCircleModel addMe) addCircle will add a SphereCircleModel to the current state of the mouse handler.
void	addLine(SphereLineModel addMe) addLine will add a line to be processed by the mouse handler
void	addPoint(float x, float y, float z) addPoints behavior changes based on the current operation that is set for the mouse rotator
void	addPoint(SpherePointModel addMe) addPoint will add a point to be processed by the mouse handler depending on when mode it's set it
void	newMouseLoc(java.awt.event.MouseEvent newPt, javax.vecmath.Point3f worldLoc) newMouseLoc will update the current MouseHandlerState as to the position of the Mouse
void	reset() reset is used to reset the current state of the MouseHandler
boolean	sendMouseLoc() sendMouseLoc returns true if the current mouse location should be sent to the state
void	setOperationAngleMeasure() setOperationAngleMeasure will set the current operation to get return angle measures
void	setOperationDrawCircle() setOperationDrawCircle will switch the current state to draw circle
void	setOperationDrawPoint() setOperationDrawPoint will set the mouse handler to draw points when a point is passed to it
void	setOperationGreatCircle() setOperationGreatCircle will set the current state to draw great circles on the sphere
void	setOperationLineIntersection() setOperationLineIntersection will set the current state to find the intersection of two lines
void	setOperationLineMeasure() setOperationLineMeasure will set the current state to measure the distance of a line
void	setOperationLongLine() setOperationLongLine will set the current state to draw long lines on the sphere
void	setOperationMovePt() setOperationMovePt will set the current state to one where the moving of points is allowed
void	setOperationParaTrans() setOperationParaTrans will switch the current state to parallel transport
void	setOperationPointRename() setOperationPointRename will switch the current state to the state that lets points to be renamed
void	setOperationRemoveObject() setOperationRemoveObject will set the current state to one where objects can be removed
void	setOperationRotatePt() setOperationRotatePt will switch to point rotation mode
void	setOperationRotateSphere() setOperationRotateSphere will set the mouse handler to allow the sphere to be rotated when a user clicks and holds on the sphere
void	setOperationShortLine() setOperationShortLine will set the current state to draw short line on the sphere
void	setOperationTriangleAreaMeasure() setOperationTriangleAreaMeasure will set the current state to find the area of a triangle
void	setOperationZoom() setOperationZoomState will set the current state to one where the sphere will zoom.
boolean	shouldHighlight(SphereBasicObject myObj) shouldHighlight will let the current state decide whether this object should be highlighted or not
java.lang.String	stateName() stateName returns the name associated with the current state

Methods inherited from class java.util.Observable

addObserver, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers

Methods inherited from class java.lang.Object

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

Constructor Detail

MouseHandler

public MouseHandler(SphereWorldModel theWorldModel,
                    com.sun.j3d.utils.behaviors.vp.OrbitBehavior theRotator,
                    InformationModel theInformation,
                    javax.swing.JPanel theController)

The MouseHandler constructor takes a initalized SphereWorld to play with

Parameters:

theWorldModel - the SphereWorldModel for MouseHandler to pass on to different states

theWorld - the SphereWorld for MouseHandler to pass on to different states

theRotator - is the OrbitBehavior to have the MouseHandler control

theInformation - is the InformationModel for the MouseHandler to pass on to different states

theController - should be the main JFrame so errors can be displayed correctly

Method Detail

setOperationDrawPoint

public void setOperationDrawPoint()

setOperationDrawPoint will set the mouse handler to draw points when a point is passed to it

setOperationRotateSphere

public void setOperationRotateSphere()

setOperationRotateSphere will set the mouse handler to allow the sphere to be rotated when a user clicks and holds on the sphere

setOperationAngleMeasure

public void setOperationAngleMeasure()

setOperationAngleMeasure will set the current operation to get return angle measures

setOperationShortLine

public void setOperationShortLine()

setOperationShortLine will set the current state to draw short line on the sphere

setOperationGreatCircle

public void setOperationGreatCircle()

setOperationGreatCircle will set the current state to draw great circles on the sphere

setOperationLongLine

public void setOperationLongLine()

setOperationLongLine will set the current state to draw long lines on the sphere

setOperationLineMeasure

public void setOperationLineMeasure()

setOperationLineMeasure will set the current state to measure the distance of a line

setOperationLineIntersection

public void setOperationLineIntersection()

setOperationLineIntersection will set the current state to find the intersection of two lines

setOperationTriangleAreaMeasure

public void setOperationTriangleAreaMeasure()

setOperationTriangleAreaMeasure will set the current state to find the area of a triangle

setOperationRemoveObject

public void setOperationRemoveObject()

setOperationRemoveObject will set the current state to one where objects can be removed

setOperationZoom

public void setOperationZoom()

setOperationZoomState will set the current state to one where the sphere will zoom.

setOperationMovePt

public void setOperationMovePt()

setOperationMovePt will set the current state to one where the moving of points is allowed

setOperationRotatePt

public void setOperationRotatePt()

setOperationRotatePt will switch to point rotation mode

setOperationParaTrans

public void setOperationParaTrans()

setOperationParaTrans will switch the current state to parallel transport

setOperationDrawCircle

public void setOperationDrawCircle()

setOperationDrawCircle will switch the current state to draw circle

setOperationPointRename

public void setOperationPointRename()

setOperationPointRename will switch the current state to the state that lets points to be renamed

addPoint

public void addPoint(float x,
                     float y,
                     float z)

addPoints behavior changes based on the current operation that is set for the mouse rotator

Parameters:

x - is the x point to add to the world

y - is the y point to add to the world

z - is the z point to add to the world

addPoint

public void addPoint(SpherePointModel addMe)

addPoint will add a point to be processed by the mouse handler depending on when mode it's set it

Parameters:

addMe - the point to add in SpheriosityPoint form

addLine

public void addLine(SphereLineModel addMe)

addLine will add a line to be processed by the mouse handler

Parameters:

addMe - is sent to the current state for manipulation

addCircle

public void addCircle(SphereCircleModel addMe)

addCircle will add a SphereCircleModel to the current state of the mouse handler.

Parameters:

addMe - the SphereCircleModel to pass along to the current state

newMouseLoc

public void newMouseLoc(java.awt.event.MouseEvent newPt,
                        javax.vecmath.Point3f worldLoc)

newMouseLoc will update the current MouseHandlerState as to the position of the Mouse

Parameters:

newPt - The new location of the mouse

worldLoc - Should be the mouse point converted to world coordinates

shouldHighlight

public boolean shouldHighlight(SphereBasicObject myObj)

shouldHighlight will let the current state decide whether this object should be highlighted or not

Parameters:

myObj - the object to highlight

Returns:

true if it should get highlight or false if it should not.

reset

public void reset()

reset is used to reset the current state of the MouseHandler

stateName

public java.lang.String stateName()

stateName returns the name associated with the current state

Returns:

The name of this state.

sendMouseLoc

public boolean sendMouseLoc()

sendMouseLoc returns true if the current mouse location should be sent to the state

Returns:

true if the mouse location should be sent and false if it should not be sent