org.jgraph.graph

Interface CellHandle

All Known Implementing Classes:

BasicGraphUI.RootHandle, EdgeView.EdgeHandle, VertexView.SizeHandle

public interface CellHandle

Defines the requirements for objects that may be used as handles. Handles are used to interactively manipulate a cell's appearance.

Method Summary

Modifier and Type	Method and Description
void	mouseDragged(java.awt.event.MouseEvent event) Messaged when the user drags the selection.
void	mouseMoved(java.awt.event.MouseEvent event) Messaged when the mouse is moved.
void	mousePressed(java.awt.event.MouseEvent event) Messaged when a mouse button is pressed.
void	mouseReleased(java.awt.event.MouseEvent event) Messaged when the drag operation has terminated with a drop.
void	overlay(java.awt.Graphics g) Paint the handle on the given graphics object during mouse operations.
void	paint(java.awt.Graphics g) Paint the handle on the given graphics object once.

Method Detail

paint

void paint(java.awt.Graphics g)

Paint the handle on the given graphics object once.

Parameters:

g - the graphics object to paint the handle on

overlay

void overlay(java.awt.Graphics g)

Paint the handle on the given graphics object during mouse operations.

Parameters:

g - the graphics object to paint the handle on

mouseMoved

void mouseMoved(java.awt.event.MouseEvent event)

Messaged when the mouse is moved.

Parameters:

event - the mouse event to be processed

mousePressed

void mousePressed(java.awt.event.MouseEvent event)

Messaged when a mouse button is pressed.

Parameters:

event - the mouse event to be processed

mouseDragged

void mouseDragged(java.awt.event.MouseEvent event)

Messaged when the user drags the selection. The Controller is responsible to determine whether the mouse is inside the parent graph or not.

Parameters:

event - the drag event to be processed

mouseReleased

void mouseReleased(java.awt.event.MouseEvent event)

Messaged when the drag operation has terminated with a drop.

Parameters:

event - the drop event to be processed