Package org.gvsig.app.project.documents.view.toolListeners

Class MapOverviewChangeZoomListener

java.lang.Object

org.gvsig.app.project.documents.view.toolListeners.MapOverviewChangeZoomListener

All Implemented Interfaces:

org.gvsig.fmap.mapcontrol.tools.Listeners.PanListener, org.gvsig.fmap.mapcontrol.tools.Listeners.RectangleListener, org.gvsig.fmap.mapcontrol.tools.Listeners.ToolListener

public class MapOverviewChangeZoomListener
extends Object
implements org.gvsig.fmap.mapcontrol.tools.Listeners.RectangleListener, org.gvsig.fmap.mapcontrol.tools.Listeners.PanListener

Listener for changes of the zoom caused by selecting a rectangular area on the associated MapOverview object with the first button of the mouse.

If the kind of action was a movement on the associated object, updates the extent of its rectangular area.

If the kind of action is the selection of a rectangular area, and is bigger than 3x3 pixels, applies a zoom in operation centering its ViewPort according the equivalent extent in map coordinates.

Author:

jmvivo

See Also:

• ViewPort

Field Summary

Fields

Modifier and Type	Field	Description
protected org.gvsig.fmap.mapcontrol.MapControl	mapControl	Reference to the MapControl object that uses.

Constructor Summary

Constructors

Constructor	Description
MapOverviewChangeZoomListener(org.gvsig.fmap.mapcontrol.MapControl mapControl)	Creates a new listener for changes of zoom at the associated MapOverview object.

Method Summary

Modifier and Type	Method	Description
boolean	cancelDrawing()
Image	getImageCursor()
void	move(org.gvsig.fmap.mapcontrol.tools.Events.MoveEvent event)
void	rectangle(org.gvsig.fmap.mapcontrol.tools.Events.EnvelopeEvent event)

Methods inherited from class java.lang.Object

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

Field Details

mapControl

protected org.gvsig.fmap.mapcontrol.MapControl mapControl

Reference to the MapControl object that uses.

Constructor Details

MapOverviewChangeZoomListener

public MapOverviewChangeZoomListener(org.gvsig.fmap.mapcontrol.MapControl mapControl)

Creates a new listener for changes of zoom at the associated MapOverview object.

Parameters:

mapControl - the MapControl object which represents the MapOverview

Method Details

rectangle

public void rectangle(org.gvsig.fmap.mapcontrol.tools.Events.EnvelopeEvent event)
               throws org.gvsig.fmap.mapcontrol.tools.BehaviorException

Specified by:

rectangle in interface org.gvsig.fmap.mapcontrol.tools.Listeners.RectangleListener

Throws:

org.gvsig.fmap.mapcontrol.tools.BehaviorException

getImageCursor

public Image getImageCursor()

Specified by:

getImageCursor in interface org.gvsig.fmap.mapcontrol.tools.Listeners.ToolListener

cancelDrawing

public boolean cancelDrawing()

Specified by:

cancelDrawing in interface org.gvsig.fmap.mapcontrol.tools.Listeners.ToolListener

move

public void move(org.gvsig.fmap.mapcontrol.tools.Events.MoveEvent event)
          throws org.gvsig.fmap.mapcontrol.tools.BehaviorException

Specified by:

move in interface org.gvsig.fmap.mapcontrol.tools.Listeners.PanListener

Throws:

org.gvsig.fmap.mapcontrol.tools.BehaviorException