Package edu.cnu.mdi.item

Class PointItem

java.lang.Object

edu.cnu.mdi.item.AItem

edu.cnu.mdi.item.PointItem

All Implemented Interfaces:

IFeedbackProvider, IDrawable, EventListener

Direct Known Subclasses:

DeviceItem

public class PointItem
extends AItem

Basic point item

Author:

heddle

Field Summary

Fields

Modifier and Type	Field	Description
protected ImageIcon	icon

Fields inherited from class edu.cnu.mdi.item.AItem

_connectable, _deletable, _dirty, _displayName, _doubleClickable, _draggable, _enabled, _focus, _FOCUSFILL, _lastDrawnPolygon, _layer, _line, _locked, _modification, _path, _popupMenu, _resizable, _resizePolicy, _rightClickable, _rotatable, _selectable, _selected, _style, _styleEditable, _visible, rotateIcon, RPSIZE, RPSIZE2, SPSIZE, SPSIZE2

Constructor Summary

Constructors

Constructor	Description
PointItem(Layer layer)	Constructor for a basic point item.
PointItem(Layer layer, Point2D.Double location)	Constructor for a basic point item.
PointItem(Layer layer, Point2D.Double location, Object... keyVals)	Constructor for a basic point item.
PointItem(Layer layer, ImageIcon icon)	Constructor for a basic point item.

Method Summary

Modifier and Type	Method	Description
void	drawItem(Graphics2D g2, IContainer container)	Custom drawer for the item.
int	getAlignmentH()	Get the horizontal alignment for the image icon
int	getAlignmentV()	Get the vertical alignment for the image icon
Rectangle	getBounds(IContainer container)	get the bounding rect in pixels.
Rectangle2D.Double	getWorldBounds()	Get the world bounding rectangle of the item.
void	modify()	A modification such as a drag, resize or rotate is continuing.
void	setAlignmentH(int xAlignment)	Set the horizontal alignment for the image icon
void	setAlignmentV(int yAlignment)	Set the vertical alignment for the image icon
void	setFocus(Point2D.Double currentLocation)	Set the current location.
boolean	shouldDraw(Graphics2D g2, IContainer container)	Checks whether the item should be drawn.
void	startModification()	A modification (can only be a drag for a point item) has occurred.
void	translateWorld(double dx, double dy)	Translate this item by (dx, dy) in world coordinates.

Methods inherited from class edu.cnu.mdi.item.AItem

acceptModification, applyGeometryProperties, applyProperties, applyStyleProperties, contains, createPopupMenu, doubleClicked, draw, drawSelections, enclosed, equals, focusFill, geometryChanged, getAzimuth, getContainer, getDisplayName, getFeedbackStrings, getFocus, getFocusPoint, getItemModification, getLastDrawnPolygon, getLayer, getLine, getPath, getPopupMenu, getResizePolicy, getRotatePoint, getSelectionPoints, getStyle, getStyleSafe, getView, hashCode, inASelectRect, inRotatePoint, inSelectPoint, isConnectable, isDeletable, isDirty, isDoubleClickable, isDraggable, isEnabled, isLocked, isResizable, isRightClickable, isRotatable, isSelectable, isSelected, isStyleEditable, isTrackable, isVisible, modificationRejected, prepareForPopup, prepareForRemoval, setAzimuth, setConnectable, setDeletable, setDirty, setDisplayName, setDoubleClickable, setDraggable, setEnabled, setFillFocus, setLocked, setModification, setResizable, setResizePolicy, setRightClickable, setRotatable, setSelectable, setSelected, setStyle, setStyleEditable, setVisible, stopModification, translateLocal, updateFocus

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.cnu.mdi.graphics.drawable.IDrawable

getName

Field Details

icon

protected ImageIcon icon

Constructor Details

PointItem

public PointItem(Layer layer)

Constructor for a basic point item.

Parameters:

layer - the layer this item is on.

PointItem

public PointItem(Layer layer,
 ImageIcon icon)

Constructor for a basic point item.

Parameters:

layer - the layer this item is on.

icon - an icon to draw at the point

PointItem

public PointItem(Layer layer,
 Point2D.Double location)

Constructor for a basic point item.

Parameters:

layer - the layer this item is on.

location - the location for the point.

PointItem

public PointItem(Layer layer,
 Point2D.Double location,
 Object... keyVals)

Constructor for a basic point item.

Parameters:

layer - the layer this item is on.

location - the location for the point.

keyVals - optional key-value pairs to set on the item. For example, you could use this to set the display name, style, or other properties at construction time. The keys should be from the set of standard keys defined in PropertyUtils, or any custom keys recognized by this item or its style.

Method Details

drawItem

public void drawItem(Graphics2D g2,
 IContainer container)

Custom drawer for the item.

Specified by:

drawItem in class AItem

Parameters:

g2 - the graphics context.

container - the graphical container being rendered.

shouldDraw

public boolean shouldDraw(Graphics2D g2,
 IContainer container)

Checks whether the item should be drawn. This is an additional check, beyond the simple visibility flag check. For example, it might check whether the item intersects the area being drawn.

Specified by:

shouldDraw in class AItem

Parameters:

g2 - the graphics context.

container - the graphical container being rendered.

Returns:

true if the item passes any and all tests, and should be drwan.

getBounds

public Rectangle getBounds(IContainer container)

get the bounding rect in pixels.

Overrides:

getBounds in class AItem

Parameters:

container - the container being rendered

Returns:

the box around the active part of the image.

startModification

public void startModification()

A modification (can only be a drag for a point item) has occurred.

Preserves AItem.startModification()'s no-op-if-null contract, even though this override doesn't need the rotate/resize handle classification it performs.

Overrides:

startModification in class AItem

modify

public void modify()

A modification such as a drag, resize or rotate is continuing.

Specified by:

modify in class AItem

setFocus

public void setFocus(Point2D.Double currentLocation)

Set the current location.

Overrides:

setFocus in class AItem

Parameters:

currentLocation - the new location to set

getWorldBounds

public Rectangle2D.Double getWorldBounds()

Get the world bounding rectangle of the item.

Specified by:

getWorldBounds in class AItem

Returns:

the world box containing the item. For a point item, which has no extent, this is null.

getAlignmentH

public int getAlignmentH()

Get the horizontal alignment for the image icon

Returns:

the horizontal alignment for the image icon

setAlignmentH

public void setAlignmentH(int xAlignment)

Set the horizontal alignment for the image icon

Parameters:

xAlignment - the xAlignment to set

getAlignmentV

public int getAlignmentV()

Get the vertical alignment for the image icon

Returns:

the vertical alignment for the image icon

setAlignmentV

public void setAlignmentV(int yAlignment)

Set the vertical alignment for the image icon

Parameters:

yAlignment - the yAlignment to set

translateWorld

public void translateWorld(double dx,
 double dy)

Description copied from class: AItem

Translate this item by (dx, dy) in world coordinates.

Specified by:

translateWorld in class AItem

Parameters:

dx - the world-coordinate offset along the X axis

dy - the world-coordinate offset along the Y axis