public class MapOverviewListener extends Object implements PointListener
Listener for changes of the zoom caused by selecting a point on the associated MapOverview
object
by a single click of the button 1 of the mouse.
Updates the extent of its ViewPort
with a zoom out operation, and enables/disables controls for
managing the data.
ViewPort
Modifier and Type | Field and Description |
---|---|
protected MapOverview |
mapControl
Reference to the
MapControl object that uses. |
Constructor and Description |
---|
MapOverviewListener(MapOverview mapControl)
Creates a new listener for zooming out the extent of the associated
MapOverview object. |
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 |
point(PointEvent event)
Called when one click is pressed on the associated
MapControl , or the location of the cursor
of the mouse has changed on it. |
void |
pointDoubleClick(PointEvent event)
Called when a double click is pressed on the associated
MapControl . |
protected MapOverview mapControl
MapControl
object that uses.public MapOverviewListener(MapOverview mapControl)
Creates a new listener for zooming out the extent of the associated MapOverview
object.
mapControl
- the MapControl
object which represents the MapOverview
public void point(PointEvent event)
PointListener
Called when one click is pressed on the associated MapControl
, or the location of the cursor
of the mouse has changed on it.
point
in interface PointListener
event
- mouse event with the coordinates of the point selected on the associated MapControl
public Image getImageCursor()
ToolListener
Gets the Cursor
associated to this tool.
getImageCursor
in interface ToolListener
public 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 pointDoubleClick(PointEvent event) throws BehaviorException
PointListener
Called when a double click is pressed on the associated MapControl
.
pointDoubleClick
in interface PointListener
event
- mouse event and the coordinates of the point selected on the associated MapControl
BehaviorException
- will be thrown when fails the process of this tool