y25.view
Class ViewMode25D

java.lang.Object
  y25.view.ViewMode25D

All Implemented Interfaces:

EventListener, MouseInputListener, MouseListener, MouseMotionListener, MouseWheelListener

Direct Known Subclasses:

NavigationMode25D

public class ViewMode25D

extends Object

implements MouseInputListener, MouseWheelListener

Handles mouse events coming from a Graph25DView.

A view mode has to be bound to a Graph25DView by calling setActiveView before it receives any mouse input events. When a view mode is added to a Graph25DView via a call to Graph25DView#addViewMode25D, this happens automatically.

As a convenience, this class stores the mouse position of an event relative to the mouse position of the last event inside deltaDrag, which can be read inside the event handling methods.

When deriving from this class, make sure that all overriden methods you implement first call the respective super method first.

Field Summary

protected Point	deltaDrag The mouse position relative to the last drag event.
protected MouseEvent	lastClickEvent The last mouse click event.
protected MouseEvent	lastDragEvent The last mouse drag event.
protected MouseEvent	lastPressEvent The last mouse press event.
protected MouseEvent	lastReleaseEvent The last mouse release event.
protected Graph25DView	view The view this mode gets mouse events from.

Constructor Summary

ViewMode25D()

Method Summary

protected Point	delta(MouseEvent from, MouseEvent to) Returns the difference vector from from to to.
void	mouseClicked(MouseEvent e)
void	mouseDragged(MouseEvent e)
void	mouseDraggedLeft(MouseEvent e)
void	mouseDraggedMiddle(MouseEvent e)
void	mouseDraggedRight(MouseEvent e)
void	mouseEntered(MouseEvent e)
void	mouseExited(MouseEvent e)
void	mouseMoved(MouseEvent e)
void	mousePressed(MouseEvent e)
void	mouseReleased(MouseEvent e)
void	mouseShiftDraggedLeft(MouseEvent e)
void	mouseShiftDraggedMiddle(MouseEvent e)
void	mouseShiftDraggedRight(MouseEvent e)
void	mouseWheelMoved(MouseWheelEvent e)
void	setActiveView(Graph25DView v) Sets the view this mode receives mouse events from.
protected boolean	shiftPressed(MouseEvent e) Determines if the SHIFT modifier key has been pressed.

Methods inherited from class java.lang.Object

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

Field Detail

view

protected Graph25DView view

The view this mode gets mouse events from.

lastClickEvent

protected MouseEvent lastClickEvent

The last mouse click event.

lastPressEvent

protected MouseEvent lastPressEvent

The last mouse press event.

lastReleaseEvent

protected MouseEvent lastReleaseEvent

The last mouse release event.

lastDragEvent

protected MouseEvent lastDragEvent

The last mouse drag event.

deltaDrag

protected Point deltaDrag

The mouse position relative to the last drag event.

Constructor Detail

ViewMode25D

public ViewMode25D()

Method Detail

delta

protected Point delta(MouseEvent from,
                      MouseEvent to)

Returns the difference vector from from to to.

setActiveView

public void setActiveView(Graph25DView v)

Sets the view this mode receives mouse events from. This method has to be called before any events are passed to this view mode.

mouseClicked

public void mouseClicked(MouseEvent e)

Specified by:

mouseClicked in interface MouseListener

mousePressed

public void mousePressed(MouseEvent e)

Specified by:

mousePressed in interface MouseListener

mouseReleased

public void mouseReleased(MouseEvent e)

Specified by:

mouseReleased in interface MouseListener

mouseEntered

public void mouseEntered(MouseEvent e)

Specified by:

mouseEntered in interface MouseListener

mouseExited

public void mouseExited(MouseEvent e)

Specified by:

mouseExited in interface MouseListener

mouseDragged

public void mouseDragged(MouseEvent e)

Specified by:

mouseDragged in interface MouseMotionListener

mouseMoved

public void mouseMoved(MouseEvent e)

Specified by:

mouseMoved in interface MouseMotionListener

mouseWheelMoved

public void mouseWheelMoved(MouseWheelEvent e)

Specified by:

mouseWheelMoved in interface MouseWheelListener

mouseDraggedLeft

public void mouseDraggedLeft(MouseEvent e)

mouseDraggedMiddle

public void mouseDraggedMiddle(MouseEvent e)

mouseDraggedRight

public void mouseDraggedRight(MouseEvent e)

mouseShiftDraggedLeft

public void mouseShiftDraggedLeft(MouseEvent e)

mouseShiftDraggedMiddle

public void mouseShiftDraggedMiddle(MouseEvent e)

mouseShiftDraggedRight

public void mouseShiftDraggedRight(MouseEvent e)

shiftPressed

protected boolean shiftPressed(MouseEvent e)

Determines if the SHIFT modifier key has been pressed.