giny.view
Interface Bend

public interface Bend

A class that encapsulates the representation of the bend used for a particular EdgeView.

Author:

Mike Smoot (mes5k)

Method Summary

void	addHandle(int insertIndex, Point2D pt) Add a PHandle to the edge at the point and index specified.
void	addHandle(Point2D pt) Add a PHandle to the edge at the point specified.
void	drawSelected() Draws any handles previously added.
void	drawUnselected() Removes any handles from the display.
Point2D[]	getDrawPoints() Returns a list of points that define what gets drawn and hence what is visible to the user.
List	getHandles() Returns a (new) List of clones of the Point2Ds that locate the handles.
Point2D	getSourceHandlePoint() Returns the handle Point2D closest to the source node.
Point2D	getTargetHandlePoint() Returns the handle Point2D closest to the target node.
boolean	handleAlreadyExists(Point2D pt) Checks to see if a PHandle already exists for the given point.
void	moveHandle(int i, Point2D pt) Moves the handle specified at the given index to the given point.
void	removeAllHandles() Removes all handles
void	removeHandle(int i) Removes the PHandle at the given index.
void	removeHandle(Point2D pt) Removes the PHandle at the specified point.
void	setHandles(List bendPoints) Given a list of points removes all existing handles/handlePoints and adds new ones for those specified in the List.

Method Detail

setHandles

void setHandles(List bendPoints)

Given a list of points removes all existing handles/handlePoints and adds new ones for those specified in the List.

Parameters:

bendPoints - A list of Point2Ds to create new handles.

getHandles

List getHandles()

Returns a (new) List of clones of the Point2Ds that locate the handles.

moveHandle

void moveHandle(int i,
                Point2D pt)

Moves the handle specified at the given index to the given point.

Parameters:

i - Index of the handle to move.

pt - Point2D to which to move the specified handle.

getSourceHandlePoint

Point2D getSourceHandlePoint()

Returns the handle Point2D closest to the source node.

getTargetHandlePoint

Point2D getTargetHandlePoint()

Returns the handle Point2D closest to the target node.

addHandle

void addHandle(Point2D pt)

Add a PHandle to the edge at the point specified. Acts as an interface to actuallyAddHandle() which does the actual adding.

Parameters:

pt - The point at which to draw the PHandle and to which the PHandle will be attached via the locator.

addHandle

void addHandle(int insertIndex,
               Point2D pt)

Add a PHandle to the edge at the point and index specified. Acts as an interface to actuallyAddHandle() which does the actual adding.

Parameters:

insertIndex - The index at which to add the PHandle to the list of handles.

pt - The point at which to draw the PHandle and to which the PHandle will be attached via the locator.

removeHandle

void removeHandle(Point2D pt)

Removes the PHandle at the specified point.

Parameters:

pt - If this point intersects an existing PHandle, then remove that PHandle.

removeHandle

void removeHandle(int i)

Removes the PHandle at the given index.

Parameters:

i - The index of the PHandle to remove.

removeAllHandles

void removeAllHandles()

Removes all handles

handleAlreadyExists

boolean handleAlreadyExists(Point2D pt)

Checks to see if a PHandle already exists for the given point.

Parameters:

pt - If this point intersects a currently existing PHandle, then return true, else return false.

drawSelected

void drawSelected()

Draws any handles previously added.

drawUnselected

void drawUnselected()

Removes any handles from the display.

getDrawPoints

Point2D[] getDrawPoints()

Returns a list of points that define what gets drawn and hence what is visible to the user.