uci.gef
Class ModeCreateEdge

java.lang.Object
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  +--uci.gef.Mode
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        +--uci.gef.ModeCreate
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              +--uci.gef.ModeCreateEdge

public class ModeCreateEdge

extends ModeCreate

A Mode to interpret user input while creating an edge. Basically mouse down starts creating an edge from a source port Fig, mouse motion paints a rubberband line, mouse up finds the destination port and finishes creating the edge and makes an FigEdge and sends it to the back of the Layer. The argument "edgeClass" determines the type if edge to suggest that the Editor's GraphModel construct. The GraphModel is responsible for acutally making an edge in the underlying model and connecting it to other model elements.

See Also:

Serialized Form

Fields inherited from class uci.gef.ModeCreate

_defaultHeight, _defaultWidth, _newItem, anchorX, anchorY

Fields inherited from class uci.gef.Mode

_args, _editor

Constructor Summary

ModeCreateEdge()

ModeCreateEdge(Editor par)

Method Summary

Fig	createNewItem(MouseEvent me, int snapX, int snapY) Create the new item that will be drawn.
String	instructions()
void	mousePressed(MouseEvent me) On mousePressed determine what port the user is dragging from.
void	mouseReleased(MouseEvent me) On mouseReleased, find the destination port, ask the GraphModel to connect the two ports.

Methods inherited from class uci.gef.ModeCreate

creationDrag, getInitialCursor, mouseDragged, paint

Methods inherited from class uci.gef.Mode

canExit, done, getArg, getArgs, getEditor, keyPressed, keyReleased, keyTyped, mouseClicked, mouseEntered, mouseExited, mouseMoved, print, setArg, setArgs, setCursor, setEditor, start

Methods inherited from class java.lang.Object

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

Constructor Detail

ModeCreateEdge

public ModeCreateEdge()

ModeCreateEdge

public ModeCreateEdge(Editor par)

Method Detail

instructions

public String instructions()

Overrides:

instructions in class Mode

createNewItem

public Fig createNewItem(MouseEvent me,
                         int snapX,
                         int snapY)

Create the new item that will be drawn. In this case I would rather create the FigEdge when I am done. Here I just create a rubberband FigLine to show during dragging.

Overrides:

createNewItem in class ModeCreate

mousePressed

public void mousePressed(MouseEvent me)

On mousePressed determine what port the user is dragging from. The mousePressed event is sent via ModeSelect.

Overrides:

mousePressed in class ModeCreate

mouseReleased

public void mouseReleased(MouseEvent me)

On mouseReleased, find the destination port, ask the GraphModel to connect the two ports. If that connection is allowed, then construct a new FigEdge and add it to the Layer and send it to the back.

Overrides:

mouseReleased in class ModeCreate