org.geotools.swing.tool

Class AbstractZoomTool

Object

MapMouseAdapter

CursorTool

AbstractZoomTool

All Implemented Interfaces:

MapMouseListener

Direct Known Subclasses:

ScrollWheelTool, ZoomInTool, ZoomOutTool

public abstract class AbstractZoomTool
extends CursorTool

Abstract base class for the zoom-in and zoom-out tools. Provides getter / setter methods for the zoom increment.

Since:

2.6

Author:

Michael Bedward

Field Summary

Fields

Modifier and Type	Field and Description
static double	DEFAULT_ZOOM_FACTOR The default zoom increment
protected double	zoom The working zoom increment

Constructor Summary

Constructors

Constructor and Description
AbstractZoomTool() Constructor

Method Summary

Modifier and Type	Method and Description
double	getZoom() Get the current areal zoom increment.
double	setZoom(double newZoom) Set the zoom increment

Methods inherited from class CursorTool

drawDragBox, getCursor, getMapPane, setMapPane

Methods inherited from class MapMouseAdapter

onMouseClicked, onMouseDragged, onMouseEntered, onMouseExited, onMouseMoved, onMousePressed, onMouseReleased, onMouseWheelMoved

Methods inherited from class Object

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

Field Detail

DEFAULT_ZOOM_FACTOR

public static final double DEFAULT_ZOOM_FACTOR

The default zoom increment

See Also:

Constant Field Values

zoom

protected double zoom

The working zoom increment

Constructor Detail

AbstractZoomTool

public AbstractZoomTool()

Constructor

Method Detail

getZoom

public double getZoom()

Get the current areal zoom increment.

Returns:

the current zoom increment as a double

setZoom

public double setZoom(double newZoom)

Set the zoom increment

Parameters:

newZoom - the new zoom increment; values <= 1.0 will be ignored

Returns:

the previous zoom increment