Package gov.nih.mipav.model.algorithms

Class ContourPlot.CoordSysScrollZoom

java.lang.Object

gov.nih.mipav.model.algorithms.ContourPlot.CoordSysScrollZoom

All Implemented Interfaces:

ContourPlot.InteractionConstants, java.awt.event.MouseWheelListener, java.util.EventListener

Enclosing class:

ContourPlot

public class ContourPlot.CoordSysScrollZoom
extends java.lang.Object
implements java.awt.event.MouseWheelListener, ContourPlot.InteractionConstants

The CoordSysScrollZoom class implements a MouseWheelListener that realize zooming functionality for the coordinate view of the ContourPlot.CoordSysRenderer. When registering this with an ContourPlot.JPlotterCanvas and corresponding ContourPlot.CoordSysRenderer turning the scroll wheel zooms into or out of the current coordinate system view. The zoom factor can be set and is by default 2.0.

Intended use: CoordSysScrollZoom zoom = new CoordSysScrollZoom(canvas, coordsys).register();

Author:

hageldave

Field Summary

Fields

Modifier and Type	Field	Description
protected int	axes
protected java.awt.Component	canvas
protected ContourPlot.CoordSysRenderer	coordsys
protected double	zoomFactor

Fields inherited from interface gov.nih.mipav.model.algorithms.ContourPlot.InteractionConstants

X_AXIS, Y_AXIS

Constructor Summary

Constructors

Constructor	Description
CoordSysScrollZoom(ContourPlot.JPlotterCanvas canvas, ContourPlot.CoordSysRenderer coordsys)

Method Summary

Modifier and Type	Method	Description
ContourPlot.CoordSysScrollZoom	deRegister()	Removes this ContourPlot.CoordSysScrollZoom from the associated canvas' mouse wheel listeners.
int	getZoomedAxes()
double	getZoomFactor()
void	mouseWheelMoved(java.awt.event.MouseWheelEvent e)
ContourPlot.CoordSysScrollZoom	register()	Adds this ContourPlot.CoordSysScrollZoom as MouseWheelListener to the associated canvas.
ContourPlot.CoordSysScrollZoom	setZoomedAxes(int axes)	Sets the axes to which this scroll zoom is applied.
ContourPlot.CoordSysScrollZoom	setZoomFactor(double zoomFactor)	Sets the zoom factor of this ContourPlot.CoordSysScrollZoom.

Methods inherited from class java.lang.Object

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

Field Detail

canvas

protected java.awt.Component canvas

coordsys

protected ContourPlot.CoordSysRenderer coordsys

zoomFactor

protected double zoomFactor

axes

protected int axes

Constructor Detail

CoordSysScrollZoom

public CoordSysScrollZoom(ContourPlot.JPlotterCanvas canvas,
                          ContourPlot.CoordSysRenderer coordsys)

Method Detail

mouseWheelMoved

public void mouseWheelMoved(java.awt.event.MouseWheelEvent e)

Specified by:

mouseWheelMoved in interface java.awt.event.MouseWheelListener

setZoomFactor

public ContourPlot.CoordSysScrollZoom setZoomFactor(double zoomFactor)

Sets the zoom factor of this ContourPlot.CoordSysScrollZoom. The default value is 2.0. Using a value in ]0,1[ will reverse the zoom direction.

Parameters:

zoomFactor - to be set

Returns:

this for chaining

getZoomFactor

public double getZoomFactor()

register

public ContourPlot.CoordSysScrollZoom register()

Adds this ContourPlot.CoordSysScrollZoom as MouseWheelListener to the associated canvas.

Returns:

this for chaining

setZoomedAxes

public ContourPlot.CoordSysScrollZoom setZoomedAxes(int axes)

Sets the axes to which this scroll zoom is applied. Default are both x and y axis.

Parameters:

axes - ContourPlot.InteractionConstants.X_AXIS, ContourPlot.InteractionConstants.Y_AXIS or X_AXIS|Y_AXIS

Returns:

this for chaining

getZoomedAxes

public int getZoomedAxes()

Returns:

the axes this scroll zoom applies to, i.e. ContourPlot.InteractionConstants.X_AXIS, ContourPlot.InteractionConstants.Y_AXIS or X_AXIS|Y_AXIS

deRegister

public ContourPlot.CoordSysScrollZoom deRegister()

Removes this ContourPlot.CoordSysScrollZoom from the associated canvas' mouse wheel listeners.

Returns:

this for chaining