jpicedt.graphic.toolkit
Class EditElementMouseTransformFactory._MoveControlPointTransform

java.lang.Object
  jpicedt.graphic.toolkit.AbstractMouseTransform
      jpicedt.graphic.toolkit.EditElementMouseTransformFactory._MoveControlPointTransform

All Implemented Interfaces:

MouseTransform

Enclosing class:

EditElementMouseTransformFactory

protected class EditElementMouseTransformFactory._MoveControlPointTransform
extends AbstractMouseTransform

a mouse-transform that moves element's end-points, ie aka scales elements

Constructor Summary

EditElementMouseTransformFactory._MoveControlPointTransform(Element target, int pointIndex, EditPointConstraint constraint, String helpMessage, Grid grid)

Method Summary

Cursor	getCursor() Return the cursor for this MouseTransform
String	getHelpMessage() Return a help-message for the UI, that makes sense with this transform.
boolean	next(PEMouseEvent e) Called when the mouse is released.
void	process(PEMouseEvent e) Called when the mouse is dragged.
String	toString()

Methods inherited from class jpicedt.graphic.toolkit.AbstractMouseTransform

getClone, getTarget, paint, start

Methods inherited from class java.lang.Object

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

Constructor Detail

EditElementMouseTransformFactory._MoveControlPointTransform

public EditElementMouseTransformFactory._MoveControlPointTransform(Element target,
                                                                   int pointIndex,
                                                                   EditPointConstraint constraint,
                                                                   String helpMessage,
                                                                   Grid grid)

Parameters:

target - the element upon which is transform will act

pointIndex - index of the Element's point that will be moved

grid - the Grid instance used for alignment (if it's snap-on)

constraint - the geometrical constraint to be used when moving control-points ; may be null

helpMessage - if non-null, this will be displayed on mouse-move events instead of the default help-message for this mouse-transform.

See Also:

Element.setCtrlPt(int, jpicedt.graphic.PicPoint)

Method Detail

process

public void process(PEMouseEvent e)

Called when the mouse is dragged. If !isCompleted, sets the clone's point (with the index given as parameter in the constructor) to the current mouse position, or its nearet-neighbour on the grid if grid-snap is on.

next

public boolean next(PEMouseEvent e)

Called when the mouse is released. Updates the original element, then call superclass.

Specified by:

next in interface MouseTransform

Overrides:

next in class AbstractMouseTransform

Returns:

true if there's another task in the sequence, false if mouse-transform has completed with this mouse-event.

getHelpMessage

public String getHelpMessage()

Description copied from interface: MouseTransform

Return a help-message for the UI, that makes sense with this transform.

Returns:

a help-message for the UI, that makes sense with this transform.

toString

public String toString()

Overrides:

toString in class Object

Returns:

a textual representation of this transform for debugging purpose

getCursor

public Cursor getCursor()

Description copied from interface: MouseTransform

Return the cursor for this MouseTransform

Returns:

a cursor adequate with this mouse-transform, delegating to CursorFactory. If the target-element of PicGroup, returns a cursor according to pointIndex.