com.nwoods.jgo
Class JGoDrawable

java.lang.Object
  extended bycom.nwoods.jgo.JGoObject
      extended bycom.nwoods.jgo.JGoDrawable
All Implemented Interfaces:
JGoXMLSaveRestore, java.io.Serializable
Direct Known Subclasses:
JGoEllipse, JGoPort, JGoRectangle, JGoRoundRect, JGoStroke

public abstract class JGoDrawable
extends JGoObject

The parent of any class that is drawn by lines and fills. This class takes care of managing Pens and Brushes for a drawable object.

Pens define the line style used -- their color, their width, and their pattern. Brushes define the fill style used -- their color and pattern.

Users of a JGoDrawable class use these functions to change fill color and line style, etc.

See Also:
JGoPen, JGoBrush, Serialized Form

Field Summary
 
Fields inherited from class com.nwoods.jgo.JGoObject
Bottom, BottomCenter, BottomLeft, BottomMiddle, BottomRight, Center, CenterLeft, CenterRight, Changed4ResizeHandles, ChangedAutoRescale, ChangedBrush, ChangedDraggable, ChangedDragsNode, ChangedGeometry, ChangedGrabChildSelection, ChangedInitializing, ChangedPen, ChangedResizable, ChangedSelectable, ChangedUpdatePartner, ChangedVisible, ChangedZOrder, LastChangedHint, Left, LeftCenter, NoHandle, NoSpot, NumReservedHandles, RepaintAll, Right, RightCenter, SideLeft, SideRight, Top, TopCenter, TopLeft, TopMiddle, TopRight
 
Constructor Summary
JGoDrawable()
          Create a new drawable object with no dimensions.
JGoDrawable(org.eclipse.swt.graphics.Point location, Dimension size)
          Create a new drawable object with the given location and size.
JGoDrawable(org.eclipse.swt.graphics.Rectangle rect)
          Create a new drawable object with the given bounding rectangle.
 
Method Summary
 void changeValue(JGoDocumentChangedEdit e, boolean undo)
          This method is called by the JGoDocumentChangedEdit.undo and redo methods to actually perform the property value change for a JGoObject.
 void copyNewValueForRedo(JGoDocumentChangedEdit e)
          This method is called when a JGoDocumentChangedEdit is created for a JGoDocumentEvent.CHANGED event, when a JGoObject has been changed.
 JGoObject copyObject(JGoCopyEnvironment env)
          Create a new instance of this object with the same field values.
 void draw3DRect(Graphics2D g, int x, int y, int width, int height, boolean raised)
          Draw a 3D rectangle using the current pen and brush.
static void draw3DRect(Graphics2D g, JGoPen pen, JGoBrush brush, int x, int y, int width, int height, boolean raised)
          Draw a rectangle with a 3D appearance, using a specified pen and brush.
 void drawEllipse(Graphics2D g, int x, int y, int width, int height)
          Draw an ellipse, using the current pen and brush.
static void drawEllipse(Graphics2D g, JGoPen pen, JGoBrush brush, int x, int y, int width, int height)
          Draw an ellipse, using a specified pen and brush.
 void drawEllipse(Graphics2D g, org.eclipse.swt.graphics.Rectangle rect)
          Draw an ellipse, using the current pen and brush, given a rectangle.
 void drawLine(Graphics2D g, int x1, int y1, int x2, int y2)
          Draw a straight line, using the current pen (and no brush).
static void drawLine(Graphics2D g, JGoPen pen, int x1, int y1, int x2, int y2)
          Draw a straight line, using a specified pen.
static void drawPath(Graphics2D g, JGoPen pen, JGoBrush brush, GeneralPath path)
          Draw a GeneralPath using a specified pen and brush.
 void drawPolygon(Graphics2D g, int[] xpoints, int[] ypoints, int npoints)
          Draw a polygon using the current pen and brush.
static void drawPolygon(Graphics2D g, JGoPen pen, JGoBrush brush, int[] xpoints, int[] ypoints, int npoints)
          Draw a polygon using a specified pen and brush.
 void drawRect(Graphics2D g, int x, int y, int width, int height)
          Draw a rectangle, using the current pen and brush.
static void drawRect(Graphics2D g, JGoPen pen, JGoBrush brush, int x, int y, int width, int height)
          Draw a rectangle, using a specified pen and brush.
 void drawRect(Graphics2D g, org.eclipse.swt.graphics.Rectangle rect)
          Draw a rectangle using the current pen and brush, given a Rectangle.
 void drawRoundRect(Graphics2D g, int x, int y, int width, int height, int arcWidth, int arcHeight)
          Draw a rectangle with rounded corners, using the current pen and brush.
static void drawRoundRect(Graphics2D g, JGoPen pen, JGoBrush brush, int x, int y, int width, int height, int arcWidth, int arcHeight)
          Draw a rectangle with rounded corners, using a specified pen and brush.
 void expandRectByPenWidth(org.eclipse.swt.graphics.Rectangle rect)
          Modify the given rectangle representing an object's bounding rectangle to account for any additional drawing region caused by the thickness of the pen.
 JGoBrush getBrush()
          Returns the current "paint brush" for this object.
 boolean getNearestIntersectionPoint(int px, int py, int cx, int cy, org.eclipse.swt.graphics.Point result)
          Consider the pen width in determining the nearest intersection point.
 JGoPen getPen()
          Returns the current "pen stroke" for this object.
 void setBrush(JGoBrush b)
          Sets the current "paint brush" to use when filling this drawable object.
 void setPen(JGoPen pen)
          Sets the current "pen stroke" to use when drawing this drawable object.
static void SVGAddPathArgs(DomElement svgElement, GeneralPath path)
           
 void SVGReadAttributes(DomElement svgElement)
          This method will read attributes from standard SVG elements.
 DomNode SVGReadObject(DomDoc svgDoc, JGoDocument jGoDoc, DomElement svgElement, DomElement jGoChildElement)
          Read this object in from a DomDoc representing a Scalable Vector Graphics (SVG) XML document.
 void SVGUpdateReference(java.lang.String attr, java.lang.Object referencedObject)
          This method will be called to fill in object references.
 void SVGWriteAttributes(DomElement svgElement)
          This method will add attributes to standard SVG elements.
 void SVGWriteObject(DomDoc svgDoc, DomElement jGoElementGroup)
          Write this object out to a DomDoc representing a Scalable Vector Graphics (SVG) XML document.
 
Methods inherited from class com.nwoods.jgo.JGoObject
canView, computeBoundingRect, computeMove, computeResize, copy, copyObjectDelayed, copyOldValueForUndo, copyRect, doMouseClick, doMouseDblClick, doUncapturedMouseMove, findCommonParent, foredate, gainedSelection, geometryChange, geometryChangeChild, getBoundingRect, getDocument, getDraggingObject, getFlags, getHeight, getLayer, getLeft, getLocation, getLocation, getParent, getParentJGoNode, getParentNode, getPartner, getRectangleSpotLocation, getSize, getSize, getSpotLocation, getSpotLocation, getToolTipText, getTop, getTopLeft, getTopLeft, getTopLevelObject, getView, getWidth, growRect, handleMove, handleResize, hideSelectionHandles, is4ResizeHandles, isAutoRescale, isBoundingRectInvalid, isChildOf, isDraggable, isDragsNode, isInitializing, isPointInObj, isResizable, isSelectable, isSkipsUndoManager, isSuspendUpdates, isTopLevel, isUpdatePartner, isVisible, lostSelection, ownerChange, paint, partnerUpdate, pick, redirectSelection, remove, set4ResizeHandles, setAutoRescale, setBoundingRect, setBoundingRect, setBoundingRect, setBoundingRectInvalid, setBoundsRect, setDraggable, setDragsNode, setFlags, setHeight, setInitializing, setLeft, setLocation, setLocation, setLocationOffset, setLocationOffset, setParent, setPartner, setRectangleSpotLocation, setResizable, setSelectable, setSize, setSize, setSizeKeepingLocation, setSkipsUndoManager, setSpotLocation, setSpotLocation, setSpotLocation, setSpotLocationOffset, setSuspendUpdates, setTop, setTopLeft, setTopLeft, setUpdatePartner, setVisible, setWidth, showSelectionHandles, spotOpposite, update, update
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

JGoDrawable

public JGoDrawable()
Create a new drawable object with no dimensions.

Any subclass that you write should call one of these constructors.


JGoDrawable

public JGoDrawable(org.eclipse.swt.graphics.Rectangle rect)
Create a new drawable object with the given bounding rectangle.

Any subclass that you write should call one of these constructors.


JGoDrawable

public JGoDrawable(org.eclipse.swt.graphics.Point location,
                   Dimension size)
Create a new drawable object with the given location and size.

Any subclass that you write should call one of these constructors.

Method Detail

copyObject

public JGoObject copyObject(JGoCopyEnvironment env)
Create a new instance of this object with the same field values.

Overrides:
copyObject in class JGoObject
Parameters:
env - the environment for the copy operation - keeps track of copied objects.
Returns:
a newly allocated copy of this object, or null

setPen

public void setPen(JGoPen pen)
Sets the current "pen stroke" to use when drawing this drawable object.

The CHANGED event fired by this routine will have a ChangedPen value as the flag/subhint.

Parameters:
pen - the JGoPen to use when drawing the lines.

getPen

public JGoPen getPen()
Returns the current "pen stroke" for this object.

Returns:
the current pen used to draw this object.

setBrush

public void setBrush(JGoBrush b)
Sets the current "paint brush" to use when filling this drawable object.

The CHANGED event fired by this routine will have a ChangedBrush value as the flag/subhint.

Parameters:
b - the brush to use when filling the object.

getBrush

public JGoBrush getBrush()
Returns the current "paint brush" for this object.

Returns:
the current brush used to fill inside this object.

copyNewValueForRedo

public void copyNewValueForRedo(JGoDocumentChangedEdit e)
Description copied from class: JGoObject
This method is called when a JGoDocumentChangedEdit is created for a JGoDocumentEvent.CHANGED event, when a JGoObject has been changed. In order for the JGoDocumentChangedEdit to be able to perform a redo, it needs to remember the new property value or state. However, the JGoObject.update method does not provide such a new value. The value must be taken from this object and copied into the JGoDocumentChangedEdit by calling setNewValue and/or setNewValueInt.

Just as the previous/old value/state information is stored as one or both of an integer and an Object, the new value/state information may be stored as either or both of an integer or an Object.

The responsibility for copying rests with the document event listener rather than the code calling JGoObject.update for efficiency when there is no undo/redo manager.

Overrides:
copyNewValueForRedo in class JGoObject
Parameters:
e - the UndoableEdit that also remembers the kind of change and any appropriate new state that should be copied in

changeValue

public void changeValue(JGoDocumentChangedEdit e,
                        boolean undo)
Description copied from class: JGoObject
This method is called by the JGoDocumentChangedEdit.undo and redo methods to actually perform the property value change for a JGoObject.

You will want to override this method to handle changing the additional state of your object subclasses.

Overrides:
changeValue in class JGoObject
Parameters:
e - the UndoableEdit that also remembers the kind of change and any appropriate old and new state for performing an undo or redo
undo - if true, this method should restore the old state/value, otherwise this method should restore the new state/value

expandRectByPenWidth

public void expandRectByPenWidth(org.eclipse.swt.graphics.Rectangle rect)
Modify the given rectangle representing an object's bounding rectangle to account for any additional drawing region caused by the thickness of the pen.

Overrides:
expandRectByPenWidth in class JGoObject
Parameters:
rect - the rectangle to be enlarged

getNearestIntersectionPoint

public boolean getNearestIntersectionPoint(int px,
                                           int py,
                                           int cx,
                                           int cy,
                                           org.eclipse.swt.graphics.Point result)
Consider the pen width in determining the nearest intersection point.

Overrides:
getNearestIntersectionPoint in class JGoObject
Parameters:
px - the X coordinate of a point that starts a line
py - the Y coordinate of a point that starts a line
cx - the X coordinate of a point that specifies the other end of the line
cy - the Y coordinate of a point that specifies the other end of the line
result - a Point that is modified (must not be null)
Returns:
whether the line from (px,py) to (cx,cy) intersects the bounding rectangle

SVGWriteObject

public void SVGWriteObject(DomDoc svgDoc,
                           DomElement jGoElementGroup)
Description copied from interface: JGoXMLSaveRestore
Write this object out to a DomDoc representing a Scalable Vector Graphics (SVG) XML document.

This method will be called by com.nwoods.jgo.svg.DefaultDocument.SVGWriteDoc() for every JGoObject contained within a JGoDocument. The following example uses a JGoRectangle to illustrate the format of a generated SVG JGoObject:

<g>
<JGoClass class="com.nwoods.jgo.JGoRectangle"\>
<rect height="75" style="stroke:black;stroke-width:1;fill:rgb(255,0,0);" width="75" x="65" y="71"/>
<JGoClass class="com.nwoods.jgo.JGoDrawable" drawablebrush="jgoid1" drawablepen="jgoid2" embeddedpenbrush="false"/>
<JGoClass class="com.nwoods.jgo.JGoObject" obj_flags="1054"/>
</g>

Note that the entire JGoObject is enclosed in a group (<g>). Each subclass of the JGoObject is described by a <JGoClass> element, starting with the most specific class and moving to the more general. Each <JGoClass> element has a "class" attribute which defines the class name. Each <JGoClass> element may also have several other attributes which uniquely describe that state of that class. Following the <JGoClass> element, each class may also genereate any other elements that are required, including representations of contained objects and standard SVG elements such as the <rect> element shown in the above example. The generation of SVG elements in the output makes it possible for the output to be read by SVG viewers and other SVG aware applications. The information contained in the <JGoClass> elements allows us to accurately save and restore all the information in a particular JGoObject subclass.

If this class contains a reference to another object, call DomDoc.registerReferencingNode() to register that reference. This will cause the element representing the referenced object to be identified with a unique id attribute, and cause the element representing the referring object to have a user defined attribute containing a reference to that id. See DomDoc.registerReferencingNode() for more information.

Typically, an implementation of this method will generate a <JGoClass> element using the DomDoc.createJGoClassElement() method, adding whatever attributes are necessary to describe the class. It will then call its superclass so that the superclass can add its own <JGoClass> element and other information to jGoElementGroup within the DomDoc.

Refer to com.nwoods.jgo.examples.flower.ActivityNode.SVGWriteObject() and com.nwoods.jgo.examples.SimpleNode.SVGWriteObject() for examples using this method.

Refer to the file com.nwoods.jgo.svg\xsvg.dtd for a formal description of JGo extensions to the SVG document type.

Specified by:
SVGWriteObject in interface JGoXMLSaveRestore
Overrides:
SVGWriteObject in class JGoObject

SVGReadObject

public DomNode SVGReadObject(DomDoc svgDoc,
                             JGoDocument jGoDoc,
                             DomElement svgElement,
                             DomElement jGoChildElement)
Description copied from interface: JGoXMLSaveRestore
Read this object in from a DomDoc representing a Scalable Vector Graphics (SVG) XML document.

This method will be called by com.nwoods.jgo.svg.DefaultDocument.SVGReadDoc() for every <JGoClass> element encountered in a DomDoc. First, an object of the type specified by the class attribute will be created and then the SVGReadObject() method will be called on that newly created object. Refer to SVGWriteObject() for a description of the expected format of the SVG document.

This method may also be called by com.nwoods.jgo.svg.DefaultDocument.SVGReadDoc() when reading any SVG document, including those not generated by JGo and therefore not containing any <JGoClass> elements. In such cases, the DefaultDocument.SVGReadElement() method may be subclassed to examine the SVG element and cause the appropriate JGoObject to be created to represent that element and call SVGReadObject() on that newly created object. By default, standard JGoObjects such as JGoRectangles, JGoStrokes, etc will be created to represent these objects.

If this class contains a reference to another object, call DomDoc.registerReferencingObject() to register that reference. This will cause the JGoObject.SVGUpdateReference() to be called on the referencing object after all the objects have been created, passing in the object befing referenced. See DomDoc.registerReferencingObject() for more information.

Typically, an implementation of this method starts by verifying that the element being read is a <JGoClass> element (which will be true if jGoChildElement is not null). This will always be true unless you have subclassed the DefaultDocument.SVGReadElement() method as described above. It will then read the expected attributes of the <JGoClass> element (as written by SVGReadObject()), call SVGReadObject() on its superclass, and finally return the next element by calling svgElement.getNextSibling().

Refer to com.nwoods.jgo.examples.flower.ActivityNode.SVGReadObject() and com.nwoods.jgo.examples.SimpleNode.SVGReadObject() for examples using this method.

Specified by:
SVGReadObject in interface JGoXMLSaveRestore
Overrides:
SVGReadObject in class JGoObject

SVGWriteAttributes

public void SVGWriteAttributes(DomElement svgElement)
Description copied from class: JGoObject
This method will add attributes to standard SVG elements.

Call this method from SVGWriteObject() if standard SVG elements are generated by this class or if this class may be subclassed and it should contribute arguments to SVG elements. For example, the JGoDrawable class implements this method to add standard SVG attributes for stroke, fill, and width. The JGoRectangle class calls this method to add all appropriate attributes to the <rect> element it generates. It is not necessary to implement this method if this class does not contribute any attributes to standard SVG elements. It is not necessary to call this method from SVGWriteObject() if this class does not generate any standard SVG elements.

Typically, an implementation of this method will first call the superclass and then call DomElement.setAttribute() to add attributes for this class.

Overrides:
SVGWriteAttributes in class JGoObject
Parameters:
svgElement - the DomElement to which to add attributes
See Also:
JGoObject.SVGWriteObject(com.nwoods.jgo.DomDoc, com.nwoods.jgo.DomElement), JGoObject.SVGReadObject(com.nwoods.jgo.DomDoc, com.nwoods.jgo.JGoDocument, com.nwoods.jgo.DomElement, com.nwoods.jgo.DomElement), JGoObject.SVGWriteAttributes(com.nwoods.jgo.DomElement), JGoObject.SVGReadAttributes(com.nwoods.jgo.DomElement), JGoObject.SVGUpdateReference(java.lang.String, java.lang.Object), DomDoc, DomNode, DomElement, DomText

SVGReadAttributes

public void SVGReadAttributes(DomElement svgElement)
Description copied from class: JGoObject
This method will read attributes from standard SVG elements.

Call this method from SVGReadObject() if standard SVG elements are being read by this class or if this class may be subclassed and it should read arguments from SVG elements. For example, the JGoDrawable class implements this method to read standard SVG attributes for stroke, fill, and width. The JGoRectangle class calls this method to read all appropriate attributes from the <rect> element it is reading. It is not necessary to implement this method if this class does not read any attributes from standard SVG elements. It is not necessary to call this method from SVGReadObject() if this class does not read any standard SVG elements.

Typically, an implementation of this method will first call the superclass and then call DomElement.getAttribute() to read the attributes for this class.

Overrides:
SVGReadAttributes in class JGoObject
Parameters:
svgElement - the DomElement from which to read attributes
See Also:
JGoObject.SVGWriteObject(com.nwoods.jgo.DomDoc, com.nwoods.jgo.DomElement), JGoObject.SVGReadObject(com.nwoods.jgo.DomDoc, com.nwoods.jgo.JGoDocument, com.nwoods.jgo.DomElement, com.nwoods.jgo.DomElement), JGoObject.SVGWriteAttributes(com.nwoods.jgo.DomElement), JGoObject.SVGReadAttributes(com.nwoods.jgo.DomElement), JGoObject.SVGUpdateReference(java.lang.String, java.lang.Object), DomDoc, DomNode, DomElement, DomText

SVGUpdateReference

public void SVGUpdateReference(java.lang.String attr,
                               java.lang.Object referencedObject)
Description copied from class: JGoObject
This method will be called to fill in object references.

This is called by com.nwoods.jgo.svg.DefaultDocument.SVGReadDoc() after all the objects have been created and if DomDoc.registerReferencingObject() has been previously called by SVGReadObject().

Typically, an implementation of this method will first call the superclass and then fill in the appropriate object reference based on the attr argument.

Refer to com.nwoods.jgo.examples.SimpleNode.SVGWriteObject() for an example using this method.

Overrides:
SVGUpdateReference in class JGoObject
Parameters:
attr - the attribute name specified by SVGReadDoc() in DomDoc.registerReferencingObject()
referencedObject - the object being referenced
See Also:
JGoObject.SVGWriteObject(com.nwoods.jgo.DomDoc, com.nwoods.jgo.DomElement), JGoObject.SVGReadObject(com.nwoods.jgo.DomDoc, com.nwoods.jgo.JGoDocument, com.nwoods.jgo.DomElement, com.nwoods.jgo.DomElement), JGoObject.SVGWriteAttributes(com.nwoods.jgo.DomElement), JGoObject.SVGReadAttributes(com.nwoods.jgo.DomElement), JGoObject.SVGUpdateReference(java.lang.String, java.lang.Object), DomDoc, DomNode, DomElement, DomText

drawLine

public static void drawLine(Graphics2D g,
                            JGoPen pen,
                            int x1,
                            int y1,
                            int x2,
                            int y2)
Draw a straight line, using a specified pen.

This is a static method, so that JGoView and JGoObjects other than JGoDrawable are able to use it.

Parameters:
g - the graphics object to actually draw on
pen - the pen to draw with
x1 - the start point X coordinate
y1 - the start point Y coordinate
x2 - the end point X coordinate
y2 - the end point Y coordinate

drawLine

public void drawLine(Graphics2D g,
                     int x1,
                     int y1,
                     int x2,
                     int y2)
Draw a straight line, using the current pen (and no brush).

Parameters:
g - the graphics object to actually draw on
x1 - the start point X coordinate
y1 - the start point Y coordinate
x2 - the end point X coordinate
y2 - the end point Y coordinate

drawEllipse

public static void drawEllipse(Graphics2D g,
                               JGoPen pen,
                               JGoBrush brush,
                               int x,
                               int y,
                               int width,
                               int height)
Draw an ellipse, using a specified pen and brush.

This is a static method, so that JGoView and JGoObjects other than JGoDrawable are able to use it.

Parameters:
g - the graphics object to actually draw on
pen - the pen to draw with
brush - the brush to fill with
x - the left side of the bounding box
y - the top side of the bounding box
width - the width of the bounding box
height - the height of the bounding box

drawEllipse

public void drawEllipse(Graphics2D g,
                        int x,
                        int y,
                        int width,
                        int height)
Draw an ellipse, using the current pen and brush.

Parameters:
g - the graphics object to actually draw on
x - the left side of the bounding box
y - the top side of the bounding box
width - the width of the bounding box
height - the height of the bounding box

drawEllipse

public void drawEllipse(Graphics2D g,
                        org.eclipse.swt.graphics.Rectangle rect)
Draw an ellipse, using the current pen and brush, given a rectangle.

Parameters:
g - the graphics object to actually draw on
rect - the bounding rectangle of the ellipse

drawRect

public static void drawRect(Graphics2D g,
                            JGoPen pen,
                            JGoBrush brush,
                            int x,
                            int y,
                            int width,
                            int height)
Draw a rectangle, using a specified pen and brush.

This is a static method, so that JGoView and JGoObjects other than JGoDrawable are able to use it.

Parameters:
g - the graphics object to actually draw on
pen - the pen to draw with
brush - the brush to fill with
x - the left side of the rectangle
y - the top side of the rectangle
width - the width of the rectangle
height - the height of the rectangle

drawRect

public void drawRect(Graphics2D g,
                     int x,
                     int y,
                     int width,
                     int height)
Draw a rectangle, using the current pen and brush.

Parameters:
g - the graphics object to actually draw on
x - the left side of the rectangle
y - the top side of the rectangle
width - the width of the rectangle
height - the height of the rectangle

drawRect

public void drawRect(Graphics2D g,
                     org.eclipse.swt.graphics.Rectangle rect)
Draw a rectangle using the current pen and brush, given a Rectangle.

Parameters:
g - the graphics object to actually draw on
rect - the bounding rectangle

drawRoundRect

public static void drawRoundRect(Graphics2D g,
                                 JGoPen pen,
                                 JGoBrush brush,
                                 int x,
                                 int y,
                                 int width,
                                 int height,
                                 int arcWidth,
                                 int arcHeight)
Draw a rectangle with rounded corners, using a specified pen and brush.

This is a static method, so that JGoView and JGoObjects other than JGoDrawable are able to use it.

Parameters:
g - the graphics object to actually draw on
pen - the pen to draw with
brush - the brush to fill with
x - the left side of the rectangle
y - the top side of the rectangle
width - the width of the rectangle
height - the height of the rectangle
arcWidth - the width of the rounded corner arc
arcHeight - the height of the rounded corner arc

drawRoundRect

public void drawRoundRect(Graphics2D g,
                          int x,
                          int y,
                          int width,
                          int height,
                          int arcWidth,
                          int arcHeight)
Draw a rectangle with rounded corners, using the current pen and brush.

Parameters:
g - the graphics object to actually draw on
x - the left side of the bounding box
y - the top side of the bounding box
width - the width of the bounding box
height - the height of the bounding box
arcWidth - the width of the arc
arcHeight - the height of the arc

draw3DRect

public static void draw3DRect(Graphics2D g,
                              JGoPen pen,
                              JGoBrush brush,
                              int x,
                              int y,
                              int width,
                              int height,
                              boolean raised)
Draw a rectangle with a 3D appearance, using a specified pen and brush.

This is a static method, so that JGoView and JGoObjects other than JGoDrawable are able to use it.

Parameters:
g - the graphics object to actually draw on
pen - the pen to draw with
brush - the brush to fill with
x - the left side of the rectangle
y - the top side of the rectangle
width - the width of the rectangle
height - the height of the rectangle
raised - the 3D state of the rectangle

draw3DRect

public void draw3DRect(Graphics2D g,
                       int x,
                       int y,
                       int width,
                       int height,
                       boolean raised)
Draw a 3D rectangle using the current pen and brush.

Parameters:
g - the graphics object to actually draw on
x - the left side of the bounding box
y - the top side of the bounding box
width - the width of the bounding box
height - the height of the bounding box
raised - the 3D state of the rectangle.

drawPolygon

public static void drawPolygon(Graphics2D g,
                               JGoPen pen,
                               JGoBrush brush,
                               int[] xpoints,
                               int[] ypoints,
                               int npoints)
Draw a polygon using a specified pen and brush.

This is a static method, so that JGoView and JGoObjects other than JGoDrawable are able to use it.

Parameters:
g - the graphics object to actually draw on
pen - the pen to draw with
brush - the brush to fill with
xpoints - the x-coordinates of all the points
ypoints - the y-coordinates of all the points
npoints - the number of points

drawPolygon

public void drawPolygon(Graphics2D g,
                        int[] xpoints,
                        int[] ypoints,
                        int npoints)
Draw a polygon using the current pen and brush.

Parameters:
g - the graphics object to actually draw on
xpoints - the x-coordinates of all the points
ypoints - the y-coordinates of all the points
npoints - the number of points

drawPath

public static void drawPath(Graphics2D g,
                            JGoPen pen,
                            JGoBrush brush,
                            GeneralPath path)
Draw a GeneralPath using a specified pen and brush.

This is a static method, so that JGoView and JGoObjects other than JGoDrawable are able to use it.

Parameters:
g - the graphics object to actually draw on
pen - the pen to draw with
brush - the brush to fill with
path - a GeneralPath

SVGAddPathArgs

public static void SVGAddPathArgs(DomElement svgElement,
                                  GeneralPath path)