y.view
Class ShapeNodeRealizer

java.lang.Object
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  +--y.view.NodeRealizer
        |
        +--y.view.ShapeNodeRealizer

All Implemented Interfaces:

NodeLayout

Direct Known Subclasses:

Graph2DNodeRealizer, GroupNodeRealizer, ProxyShapeNodeRealizer

public class ShapeNodeRealizer

extends NodeRealizer

A node realizer that displays a node as a geometric shape. Possible shapes are rectangle, ellipse, rounded rect, triangle, ocagon, hexagon, diamond and parallelogram.

Field Summary

static byte	DIAMOND Shape type constant.
static byte	ELLIPSE Shape type constant.
static byte	HEXAGON Shape type constant.
static byte	OCTAGON Shape type constant.
static byte	PARALLELOGRAM Shape type constant.
static byte	RECT Shape type constant.
static byte	RECT_3D Shape type constant.
static byte	ROUND_RECT Shape type constant.
protected Shape	shape The graphical shape representation that gets painted.
static byte	TRAPEZOID Shape type constant.
static byte	TRAPEZOID_2 Shape type constant.
static byte	TRIANGLE Shape type constant.

Fields inherited from class y.view.NodeRealizer

height, HOTSPOT_E, HOTSPOT_N, HOTSPOT_NE, HOTSPOT_NONE, HOTSPOT_NW, HOTSPOT_S, HOTSPOT_SE, HOTSPOT_SW, HOTSPOT_W, width, x, y

Constructor Summary

ShapeNodeRealizer()
Creates a new ShapeNodeRealizer with rectangular at position (0,0) and with empty label

ShapeNodeRealizer(byte type)
Creates a new ShapeNodeRealizer at position (x,y) with specific type and empty label.

ShapeNodeRealizer(byte type, double x, double y, String label)
Creates a new ShapeNodeRealizer

ShapeNodeRealizer(NodeRealizer argNodeRealizer)
Creates a new ShapeNodeRealizer as a copy of the given realizer.

Method Summary

boolean	contains(double x, double y) Evaluate hit test on the node realizer.
NodeRealizer	createCopy(NodeRealizer nr) Creates a copy of this realizer type that will be initialized with the values found in the given realizer.
boolean	findIntersection(double ix, double iy, double ox, double oy, Point2D result) Special Intersection handling for some types of shape.
byte	getShapeType() Returns shape type of this realizier
void	moveBy(double dx, double dy) Moves this realizer by the vector (dx,dy).
protected void	paintNode(Graphics2D gfx) Paints the node.
void	read(ObjectInputStream in) Reads in the serialized form of this realizer.
void	setCenter(double x, double y) Sets the center location of this realizer
void	setLocation(double x, double y) Sets the upper left corner location of this realizer.
void	setShapeType(byte type) Sets the shape type of this realizer.
void	setSize(double w, double h) Sets the size of the realizer.
static Map	shapeTypeToStringMap() Returns a map whose keys are the shape type specifiers wrapped in Byte objects.
void	write(ObjectOutputStream out) Writes this realizer in a serialized form to the given stream.

Methods inherited from class y.view.NodeRealizer

addLabel, calcUnionRect, calcUnionRect, createCopy, createNodeLabel, findBBIntersection, getBoundingBox, getCenterX, getCenterY, getFillColor, getFillColor2, getHeight, getHotSpotColor, getLabel, getLabel, getLabelText, getLayer, getLineColor, getLineType, getNode, getPortCandidates, getSloppySelectionColor, getWidth, getX, getY, hotSpotHit, intersects, isInBox, isSelected, isTransparent, isVisible, labelCount, paint, paintHotSpots, paintLayer, paintLayerSloppy, paintSloppy, paintText, removeLabel, setCenterX, setCenterY, setEdgesDirty, setFillColor, setFillColor2, setFrame, setFrame, setHeight, setHotSpotColor, setLabel, setLabelText, setLayer, setLayer, setLineColor, setLineType, setSelected, setSloppySelectionColor, setTransparent, setVisible, setWidth, setX, setY

Methods inherited from class java.lang.Object

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

Field Detail

RECT

public static final byte RECT

Shape type constant. Specifies a rectangular shape.

See Also:

Constant Field Values

ROUND_RECT

public static final byte ROUND_RECT

Shape type constant. Specifies a rectangular shape whose corners are rounded.

See Also:

Constant Field Values

ELLIPSE

public static final byte ELLIPSE

Shape type constant. Specifies an oval (ellipsoid) shape.

See Also:

Constant Field Values

PARALLELOGRAM

public static final byte PARALLELOGRAM

Shape type constant. Specifies a rhomboidal shape, whose upper right corner is further to the right than it's lower right corner.

See Also:

Constant Field Values

HEXAGON

public static final byte HEXAGON

Shape type constant. Specifies a hexagonal shape, i.e, a shape with six corners.

See Also:

Constant Field Values

TRIANGLE

public static final byte TRIANGLE

Shape type constant. Specifies a triangular shape, i.e, a shape with three corners.

See Also:

Constant Field Values

RECT_3D

public static final byte RECT_3D

Shape type constant. Specifies a rectangular shape with 3D-ish looks.

See Also:

Constant Field Values

OCTAGON

public static final byte OCTAGON

Shape type constant. Specifies an octagonal shape, i.e, a shape with eight corners.

See Also:

Constant Field Values

DIAMOND

public static final byte DIAMOND

Shape type constant. Specifies a diamond shape, i.e, a shape with four corners and diagonally sloped sides.

See Also:

Constant Field Values

TRAPEZOID

public static final byte TRAPEZOID

Shape type constant. Specifies a trapezoidal shape, whose upper line is half as long as it's lower line.

See Also:

Constant Field Values

TRAPEZOID_2

public static final byte TRAPEZOID_2

Shape type constant. Specifies a trapezoidal shape, whose lower line is half as long as it's upper line.

See Also:

Constant Field Values

shape

protected Shape shape

The graphical shape representation that gets painted.

Constructor Detail

ShapeNodeRealizer

public ShapeNodeRealizer()

Creates a new ShapeNodeRealizer with rectangular at position (0,0) and with empty label

ShapeNodeRealizer

public ShapeNodeRealizer(byte type)

Creates a new ShapeNodeRealizer at position (x,y) with specific type and empty label.

Parameters:

type - A shape type specifier.

ShapeNodeRealizer

public ShapeNodeRealizer(byte type,
                         double x,
                         double y,
                         String label)

Creates a new ShapeNodeRealizer

Parameters:

type - A shape type specifier. ShapeNodeRealizer.ELLIPSE or ShapeNodeRealizer.RECT

x - x-Coordinate of the node

y - y-Coordinate of the node

label - The label of the node

ShapeNodeRealizer

public ShapeNodeRealizer(NodeRealizer argNodeRealizer)

Creates a new ShapeNodeRealizer as a copy of the given realizer. If the given realizer is not of type ShapeNodeRealizer then a rectangular shape will be used as default.

Method Detail

createCopy

public NodeRealizer createCopy(NodeRealizer nr)

Creates a copy of this realizer type that will be initialized with the values found in the given realizer.

Specified by:

createCopy in class NodeRealizer

setCenter

public void setCenter(double x,
                      double y)

Sets the center location of this realizer

Overrides:

setCenter in class NodeRealizer

setLocation

public void setLocation(double x,
                        double y)

Sets the upper left corner location of this realizer.

Specified by:

setLocation in interface NodeLayout

Overrides:

setLocation in class NodeRealizer

Parameters:

x - the x-coordinates of the upper left corner.

y - the y-coordinates of the upper left corner.

moveBy

public void moveBy(double dx,
                   double dy)

Moves this realizer by the vector (dx,dy).

Overrides:

moveBy in class NodeRealizer

setSize

public void setSize(double w,
                    double h)

Sets the size of the realizer. Note that this method resizes the node in a way that the center location of this realizer won't change. The upper left corner of this realizer *will* change though.

Specified by:

setSize in interface NodeLayout

Overrides:

setSize in class NodeRealizer

Parameters:

w - the width of the node.

h - the heigth of the node.

setShapeType

public void setShapeType(byte type)

Sets the shape type of this realizer. The shape type specifier can be one of the following:

ShapeNodeRealizer.RECT, ShapeNodeRealizer.ROUND_RECT, ShapeNodeRealizer.ELLIPSE, ShapeNodeRealizer.PARALLELOGRAM, ShapeNodeRealizer.HEXAGON, ShapeNodeRealizer.TRIANGLE, ShapeNodeRealizer.RECT_3D, ShapeNodeRealizer.OCTAGON, ShapeNodeRealizer.DIAMOND, ShapeNodeRealizer.TRAPEZOID, ShapeNodeRealizer.TRAPEZOID_2.

getShapeType

public byte getShapeType()

Returns shape type of this realizier

See Also:

ShapeNodeRealizer.setShapeType(byte)

paintNode

protected void paintNode(Graphics2D gfx)

Paints the node.

Specified by:

paintNode in class NodeRealizer

contains

public boolean contains(double x,
                        double y)

Evaluate hit test on the node realizer. When a node is transparent, only its boundary is evaluated for the hit test.

Overrides:

contains in class NodeRealizer

Returns:

true if the position (x,y) is part of the node false otherwise.

findIntersection

public boolean findIntersection(double ix,
                                double iy,
                                double ox,
                                double oy,
                                Point2D result)

Special Intersection handling for some types of shape. When shape is an ellipse or an rectangle, the intersectin point is calculated, not iteratively determined.

Overrides:

findIntersection in class NodeRealizer

write

public void write(ObjectOutputStream out)
           throws IOException

Writes this realizer in a serialized form to the given stream.

Overrides:

write in class NodeRealizer

IOException

read

public void read(ObjectInputStream in)
          throws IOException,
                 ClassNotFoundException

Reads in the serialized form of this realizer. The realizer must have been written out before by it's ShapeNodeRealizer.write(ObjectOutputStream) method.

Overrides:

read in class NodeRealizer

IOException

ClassNotFoundException

shapeTypeToStringMap

public static Map shapeTypeToStringMap()

Returns a map whose keys are the shape type specifiers wrapped in Byte objects. The value for each key is a String that describes the shape type.