jplot

Class GraphGeneral.GraphMouseListener

java.lang.Object

jplot.GraphGeneral.GraphMouseListener

All Implemented Interfaces:

MouseListener, EventListener

Enclosing class:

GraphGeneral

public class GraphGeneral.GraphMouseListener
extends Object
implements MouseListener

GraphMouseListener, allows to drag'n drop with the mouse. Currently, this listener locates the coordinates of the mouse pointer and then checks what is beneath it: legends, labels, curves, points... Double-clicking then opens a context-sensitive dialog (to change the label-settings, for example).

Constructor Summary

Constructors

Constructor and Description
GraphMouseListener()

Method Summary

Modifier and Type	Method and Description
void	mouseClicked(MouseEvent e) Picks up a mouse-click.
void	mouseEntered(MouseEvent e) Picks up a mouse-Entered event.
void	mouseExited(MouseEvent e) Picks up a mouse-Exited event.
void	mousePressed(MouseEvent e) Picks up a mouse-pressed event.
void	mouseReleased(MouseEvent e) Stops dragging if we are actually dragging, does nothing otherwise.
boolean	startDrag(boolean active, int x, int y, int w, int h) Picks up a mouse-drag event.

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphMouseListener

public GraphMouseListener()

Method Detail

mouseClicked

public void mouseClicked(MouseEvent e)

Picks up a mouse-click.

Specified by:

mouseClicked in interface MouseListener

Parameters:

e - mouse-click event

mouseEntered

public void mouseEntered(MouseEvent e)

Picks up a mouse-Entered event. Does nothing.

Specified by:

mouseEntered in interface MouseListener

Parameters:

e - mouse event

mouseExited

public void mouseExited(MouseEvent e)

Picks up a mouse-Exited event. Does nothing.

Specified by:

mouseExited in interface MouseListener

Parameters:

e - mouse event

startDrag

public boolean startDrag(boolean active,
                         int x,
                         int y,
                         int w,
                         int h)

Picks up a mouse-drag event. Legends and labels can be dragged and dropped.

Parameters:

active - true if we activated an item, e.g. a label.

x - x-position

y - y-position

w - width of the object which will be dragged

h - height of the object which will be dragged

mousePressed

public void mousePressed(MouseEvent e)

Picks up a mouse-pressed event. Starts the dragging event, if there's something interesting below the mouse.

Specified by:

mousePressed in interface MouseListener

Parameters:

e - mouse event

mouseReleased

public void mouseReleased(MouseEvent e)

Stops dragging if we are actually dragging, does nothing otherwise.

Specified by:

mouseReleased in interface MouseListener

Parameters:

e - mouse event