Package org.insa.graphs.gui.drawing.components

Class MapZoomControls

java.lang.Object

org.insa.graphs.gui.drawing.components.MapZoomControls

public class MapZoomControls
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
private static java.awt.Color	CURRENT_ZOOM_TICK_COLOR
private static double	CURRENT_ZOOM_TICK_HEIGHT_RATIO
private int	currentLevel
private static int	DEFAULT_HEIGHT
private static int	DEFAULT_SPACING
private boolean	halfMark
private int	maxLevel
private int	minLevel
private static int	ZOOM_IN_ACTION_ID
private static java.lang.String	ZOOM_IN_ACTION_NAME
private static int	ZOOM_OUT_ACTION_ID
private static java.lang.String	ZOOM_OUT_ACTION_NAME
private static java.awt.Color	ZOOM_TICK_COLOR
private static double	ZOOM_TICK_HEIGHT_RATIO
private java.awt.Image	zoomIn
private java.util.List<java.awt.event.ActionListener>	zoomInListeners
private java.awt.Rectangle	zoomInRect
private java.awt.Image	zoomOut
private java.util.List<java.awt.event.ActionListener>	zoomOutListeners
private java.awt.Rectangle	zoomOutRect

Constructor Summary

Constructors

Constructor	Description
MapZoomControls(java.awt.Component component, int defaultZoom, int minZoom, int maxZoom)

Method Summary

Modifier and Type	Method	Description
void	addZoomInListener(java.awt.event.ActionListener listener)	Add a zoom-in listener.
void	addZoomOutListener(java.awt.event.ActionListener listener)	Add a zoom-out listener.
boolean	contains(java.awt.Point point)	Check if a point is contained inside an element of this zoom controls, useful to avoid spurious click listeners.
protected void	draw(java.awt.Graphics2D g, int xoffset, int yoffset, java.awt.image.ImageObserver observer)
int	getHeight()
int	getWidth()
int	getZoomLevel()
void	setZoomLevel(int level)	Set the current zoom level without requesting a redraw.

Methods inherited from class java.lang.Object

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

Field Detail

ZOOM_IN_ACTION_ID

private static final int ZOOM_IN_ACTION_ID

See Also:

Constant Field Values

ZOOM_IN_ACTION_NAME

private static final java.lang.String ZOOM_IN_ACTION_NAME

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Constant Field Values

ZOOM_OUT_ACTION_ID

private static final int ZOOM_OUT_ACTION_ID

See Also:

Constant Field Values

ZOOM_OUT_ACTION_NAME

private static final java.lang.String ZOOM_OUT_ACTION_NAME

See Also:

Constant Field Values

DEFAULT_HEIGHT

private static final int DEFAULT_HEIGHT

See Also:

Constant Field Values

DEFAULT_SPACING

private static final int DEFAULT_SPACING

See Also:

Constant Field Values

ZOOM_TICK_HEIGHT_RATIO

private static final double ZOOM_TICK_HEIGHT_RATIO

See Also:

Constant Field Values

ZOOM_TICK_COLOR

private static final java.awt.Color ZOOM_TICK_COLOR

CURRENT_ZOOM_TICK_HEIGHT_RATIO

private static final double CURRENT_ZOOM_TICK_HEIGHT_RATIO

See Also:

Constant Field Values

CURRENT_ZOOM_TICK_COLOR

private static final java.awt.Color CURRENT_ZOOM_TICK_COLOR

halfMark

private boolean halfMark

currentLevel

private int currentLevel

minLevel

private final int minLevel

maxLevel

private final int maxLevel

zoomIn

private final java.awt.Image zoomIn

zoomOut

private final java.awt.Image zoomOut

zoomInRect

private final java.awt.Rectangle zoomInRect

zoomOutRect

private final java.awt.Rectangle zoomOutRect

zoomInListeners

private final java.util.List<java.awt.event.ActionListener> zoomInListeners

zoomOutListeners

private final java.util.List<java.awt.event.ActionListener> zoomOutListeners

Constructor Detail

MapZoomControls

public MapZoomControls(java.awt.Component component,
                       int defaultZoom,
                       int minZoom,
                       int maxZoom)
                throws java.io.IOException

Throws:

java.io.IOException

Method Detail

addZoomInListener

public void addZoomInListener(java.awt.event.ActionListener listener)

Add a zoom-in listener.

Parameters:

listener - Zoom-in listener to add to this MapZoomControls instance.

addZoomOutListener

public void addZoomOutListener(java.awt.event.ActionListener listener)

Add a zoom-out listener.

Parameters:

listener - Zoom-out listener to add to this MapZoomControls instance.

getZoomLevel

public int getZoomLevel()

Returns:

the current zoom level.

setZoomLevel

public void setZoomLevel(int level)

Set the current zoom level without requesting a redraw.

Parameters:

level - Zoom level to set.

getHeight

public int getHeight()

Returns:

Height of this "component" when drawn.

getWidth

public int getWidth()

Returns:

Width of this "component" when drawn.

contains

public boolean contains(java.awt.Point point)

Check if a point is contained inside an element of this zoom controls, useful to avoid spurious click listeners.

Parameters:

point - Point to check.

Returns:

true if the given point correspond to an element of this zoom controls.

draw

protected void draw(java.awt.Graphics2D g,
                    int xoffset,
                    int yoffset,
                    java.awt.image.ImageObserver observer)