org.gvsig.fmap.mapcontrol.tools

Class MeasureListenerImpl

java.lang.Object

org.gvsig.fmap.mapcontrol.tools.MeasureListenerImpl

All Implemented Interfaces:

PolylineListener, ToolListener

Direct Known Subclasses:

DistanceListener, MeasureListener

public class MeasureListenerImpl
extends java.lang.Object
implements PolylineListener

Listener for calculating the length of the segments of a polyline, defined in the associated MapControl object.

Field Summary

Fields

Modifier and Type	Field and Description
protected MapControl	mapCtrl Reference to the MapControl object that uses.

Constructor Summary

Constructors

Constructor and Description
MeasureListenerImpl(MapControl mc) Creates a new listener for calculating the length of a polyline.

Method Summary

Modifier and Type	Method and Description
boolean	cancelDrawing() Determines if the drawing process that this tool executes on the MapControl instance could be canceled or not.
java.awt.Image	getImageCursor() Gets the Cursor associated to this tool.
void	pointFixed(MeasureEvent event) Called when user executes a mouse click and selects a vertex of the polyline.
void	points(MeasureEvent event) Called when user moves the mouse after selecting a vertex of the polyline.
void	polylineFinished(MeasureEvent event) Called when user executes a double click with the mouse, finishing the drawn of the polyline.

Methods inherited from class java.lang.Object

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

Field Detail

mapCtrl

protected MapControl mapCtrl

Reference to the MapControl object that uses.

Constructor Detail

MeasureListenerImpl

public MeasureListenerImpl(MapControl mc)

Creates a new listener for calculating the length of a polyline.

Parameters:

mc - the MapControl where is calculated the length

Method Detail

points

public void points(MeasureEvent event)

Description copied from interface: PolylineListener

Called when user moves the mouse after selecting a vertex of the polyline.

Each kind of polyline listener calculates different information with the data of the MeasureEvent, according its nature.

Specified by:

points in interface PolylineListener

Parameters:

event - information about the mouse event, and geometry data of the polyline

getImageCursor

public java.awt.Image getImageCursor()

Description copied from interface: ToolListener

Gets the Cursor associated to this tool.

Specified by:

getImageCursor in interface ToolListener

Returns:

component with the bitmap associated to this tool

pointFixed

public void pointFixed(MeasureEvent event)

Description copied from interface: PolylineListener

Called when user executes a mouse click and selects a vertex of the polyline.

Specified by:

pointFixed in interface PolylineListener

Parameters:

event - information about the mouse event, and geometry data of the polyline

cancelDrawing

public boolean cancelDrawing()

Description copied from interface: ToolListener

Determines if the drawing process that this tool executes on the MapControl instance could be canceled or not.

Specified by:

cancelDrawing in interface ToolListener

Returns:

true if is cancellable; otherwise returns false

polylineFinished

public void polylineFinished(MeasureEvent event)

Description copied from interface: PolylineListener

Called when user executes a double click with the mouse, finishing the drawn of the polyline.

All features of the active and vector layers of the associated MapControl object that their area intersect with the polygonal area defined in the event, will be selected.

Specified by:

polylineFinished in interface PolylineListener

Parameters:

event - information about the mouse event, and geometry data of the polyline