public class MeasureListenerImpl extends Object implements PolylineListener
Listener for calculating the length of the segments of a polyline, defined in the associated MapControl
object.
Modifier and Type | Field and Description |
---|---|
protected MapControl |
mapCtrl
Reference to the
MapControl object that uses. |
Constructor and Description |
---|
MeasureListenerImpl(MapControl mc)
Creates a new listener for calculating the length of a polyline.
|
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. |
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.
|
protected MapControl mapCtrl
MapControl
object that uses.public MeasureListenerImpl(MapControl mc)
Creates a new listener for calculating the length of a polyline.
mc
- the MapControl
where is calculated the lengthpublic void points(MeasureEvent event)
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.
points
in interface PolylineListener
event
- information about the mouse event, and geometry data of the polylinepublic Image getImageCursor()
ToolListener
Gets the Cursor
associated to this tool.
getImageCursor
in interface ToolListener
public void pointFixed(MeasureEvent event)
PolylineListener
Called when user executes a mouse click and selects a vertex of the polyline.
pointFixed
in interface PolylineListener
event
- information about the mouse event, and geometry data of the polylinepublic boolean cancelDrawing()
ToolListener
Determines if the drawing process that this tool executes on the MapControl
instance could be canceled or not.
cancelDrawing
in interface ToolListener
true
if is cancellable; otherwise returns false
public void polylineFinished(MeasureEvent event)
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.
polylineFinished
in interface PolylineListener
event
- information about the mouse event, and geometry data of the polyline