net.sf.sdedit.drawable
Class LoopArrow

java.lang.Object
  net.sf.sdedit.drawable.Drawable
      net.sf.sdedit.drawable.SequenceElement
          net.sf.sdedit.drawable.Arrow
              net.sf.sdedit.drawable.LoopArrow

All Implemented Interfaces:

Constants

public class LoopArrow
extends Arrow

Field Summary

Fields inherited from class net.sf.sdedit.drawable.SequenceElement

configuration, diagram

Fields inherited from interface net.sf.sdedit.Constants

ACTIVE_LIFELINE_COLOR, ANTI_ALIAS, dashed, DEFAULT_CODE_FONT, DEFAULT_CURSOR, DEFAULT_ENCODING_SCHEME, dotted, emptyStroke, GLOBAL_CONF_FILE, HAND_CURSOR, MOVE_CURSOR, SAVE_AS_FILE_PROPERTY, SAVE_AS_TYPE_PROPERTY, solid, TEST_FREEHEP_CLASSNAME, thick, thick_dashed, THREAD_COLORS

Constructor Summary

LoopArrow(Message msg, ArrowStroke stroke, Direction align, int y)
Creates a new LoopArrow.

Method Summary

void	computeLayoutInformation() This method is called when and if the left and top positions of the drawable components of a sequence diagram are fixed.
void	draw(Graphics2D g) Draws the sequence diagram element into the given Graphics2D context, using the rectangle starting at Drawable.getTop(), Drawable.getLeft(), sized Drawable.getHeight(), Drawable.getWidth().
Point	getAnchor() Returns the point in the middle of this arrow, the one that serves as an anchor when a connection to a Note is made.
int	getInnerHeight() Returns the sum of the height of the text and the space between the text and the arrow.
Point[]	getLinePoints() Returns an array of four points, representing the positions of the points that are connected by the lines of which the loop arrow is made up.
Point	getTextPosition() Returns the position of the left bottom of the label of the loop arrow.

Methods inherited from class net.sf.sdedit.drawable.Arrow

drawArrowHead, drawText, getInnerHeight, getMessage, getPoints, getSpace, getStroke, overrideColor, setSpace

Methods inherited from class net.sf.sdedit.drawable.SequenceElement

configuration, diagram, drawMultilineString, getAlign, getLeftEndpoint, getLeftLimit, getRightEndpoint, getRightLimit, leftPadding, rightPadding, setLeftEndpoint, setLeftLimit, setRightEndpoint, setRightLimit, textHeight, textWidth

Methods inherited from class net.sf.sdedit.drawable.Drawable

contains, drawMultilineString, getBottom, getHeight, getLeft, getRight, getTop, getWidth, intersects, isVisible, setBottom, setHeight, setLeft, setRight, setTop, setVisible, setWidth

Methods inherited from class java.lang.Object

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

Constructor Detail

LoopArrow

public LoopArrow(Message msg,
                 ArrowStroke stroke,
                 Direction align,
                 int y)

Creates a new LoopArrow.

Parameters:

msg - a self-message or answer to self

stroke - the stroke to be used for drawing the arrow

align - Align.LEFT if the message is to be drawn on the left of a lifeline, otherwise Align.RIGHT

y - the vertical position where to start drawing

Method Detail

draw

public void draw(Graphics2D g)

Description copied from class: Drawable

Draws the sequence diagram element into the given Graphics2D context, using the rectangle starting at Drawable.getTop(), Drawable.getLeft(), sized Drawable.getHeight(), Drawable.getWidth().

Overrides:

draw in class Arrow

Parameters:

g - the Graphics2D context to draw this drawable sequence diagram element into

See Also:

Drawable.draw(java.awt.Graphics2D)

getInnerHeight

public int getInnerHeight()

Description copied from class: Arrow

Returns the sum of the height of the text and the space between the text and the arrow. In other words, this is the height minus the half height of the arrow head.

Overrides:

getInnerHeight in class Arrow

Returns:

the sum of the height of the text and the space between the text and the arrow

getLinePoints

public Point[] getLinePoints()

Returns an array of four points, representing the positions of the points that are connected by the lines of which the loop arrow is made up.

Returns:

an array of four points, representing the positions of the points that are connected by the lines of which the loop arrow is made up

getAnchor

public Point getAnchor()

Description copied from class: Arrow

Returns the point in the middle of this arrow, the one that serves as an anchor when a connection to a Note is made.

Overrides:

getAnchor in class Arrow

Returns:

the point in the middle of this arrow

getTextPosition

public Point getTextPosition()

Returns the position of the left bottom of the label of the loop arrow.

Overrides:

getTextPosition in class Arrow

Returns:

the position of the left bottom of the label of the loop arrow

computeLayoutInformation

public void computeLayoutInformation()

Description copied from class: Drawable

This method is called when and if the left and top positions of the drawable components of a sequence diagram are fixed. Its purpose is to use this information to compute even finer layout information, such as the width of the component.

Overrides:

computeLayoutInformation in class Arrow

See Also:

Drawable.computeLayoutInformation()