org.jhotdraw.draw
Class TextAreaCreationTool

java.lang.Object
  org.jhotdraw.beans.AbstractBean
      org.jhotdraw.draw.AbstractTool
          org.jhotdraw.draw.CreationTool
              org.jhotdraw.draw.TextAreaCreationTool

All Implemented Interfaces:

java.awt.event.ActionListener, java.awt.event.KeyListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, Tool

public class TextAreaCreationTool
extends CreationTool
implements java.awt.event.ActionListener

A tool to create new or edit existing figures that implement the TextHolderFigure interface, such as TextAreaFigure. The figure to be created is specified by a prototype.

To create a figure using the TextAreaCreationTool, the user does the following mouse gestures on a DrawingView:

1. Press the mouse button over the DrawingView. This defines the start point of the Figure bounds.
2. Drag the mouse while keeping the mouse button pressed, and then release the mouse button. This defines the end point of the Figure bounds.

When the user has performed these mouse gesture, the TextAreaCreationTool overlays a text area over the drawing where the user can enter the text for the Figure.

To edit an existing text figure using the TextAreaCreationTool, the user does the following mouse gesture on a DrawingView:

1. Press the mouse button over a Figure on the DrawingView.

The TextAreaCreationTool then uses Figure.findFigureInside to find a Figure that implements the TextHolderFigure interface and that is editable. Then it overlays a text area over the drawing where the user can enter the text for the Figure.

XXX - Maybe this class should be split up into a CreateTextAreaTool and a EditTextAreaTool.

Design Patterns

Framework
The text creation and editing tools and the TextHolderFigure interface define together the contracts of a smaller framework inside of the JHotDraw framework for structured drawing editors.
Contract: TextHolderFigure, TextCreationTool, TextAreaCreationTool, TextEditingTool, TextAreaEditingTool, FloatingTextField, FloatingTextArea.

Prototype
The text creation tools create new figures by cloning a prototype TextHolderFigure object.
Prototype: TextHolderFigure; Client: TextCreationTool, TextAreaCreationTool.

Version:

$Id: TextAreaCreationTool.java 527 2009-06-07 14:28:19Z rawcoder $

Author:

Werner Randelshofer

See Also:

Serialized Form

Field Summary

private java.awt.Color	rubberbandColor Rubberband color of the tool.
private FloatingTextArea	textArea
private TextHolderFigure	typingTarget

Fields inherited from class org.jhotdraw.draw.CreationTool

createdFigure, minimalSize, minimalSizeTreshold, presentationName, prototype, prototypeAttributes

Fields inherited from class org.jhotdraw.draw.AbstractTool

anchor, editor, isWorking, listenerList

Fields inherited from class org.jhotdraw.beans.AbstractBean

propertySupport

Constructor Summary

TextAreaCreationTool(TextHolderFigure prototype)
Creates a new instance.

TextAreaCreationTool(TextHolderFigure prototype, java.util.Map<AttributeKey,java.lang.Object> attributes)

Method Summary

void	actionPerformed(java.awt.event.ActionEvent event)
protected void	beginEdit(TextHolderFigure textHolder)
protected void	creationFinished(Figure createdFigure) This method allows subclasses to do perform additonal user interactions after the new figure has been created.
void	deactivate(DrawingEditor editor) Deactivates the tool.
void	draw(java.awt.Graphics2D g) Draws the tool.
protected void	endEdit()
private java.awt.geom.Rectangle2D.Double	getFieldBounds(TextHolderFigure figure)
void	mousePressed(java.awt.event.MouseEvent e) Creates a new figure at the mouse location.
void	setRubberbandColor(java.awt.Color c) Sets the rubberband color for the tool.

Methods inherited from class org.jhotdraw.draw.CreationTool

activate, createFigure, getAddedFigure, getCreatedFigure, getPrototype, isToolDoneAfterCreation, mouseDragged, mouseReleased, setToolDoneAfterCreation, updateCursor

Methods inherited from class org.jhotdraw.draw.AbstractTool

addToolListener, addUndoableEditListener, constrainPoint, constrainPoint, createActionMap, createInputMap, editCopy, editCut, editDelete, editDuplicate, editPaste, fireAreaInvalidated, fireAreaInvalidated, fireToolDone, fireToolStarted, getActionMap, getDrawing, getEditor, getInputMap, getToolTipText, getView, isActive, keyPressed, keyReleased, keyTyped, mouseClicked, mouseEntered, mouseExited, mouseMoved, removeToolListener, removeUndoableEditListener, setActionMap, setInputMap, supportsHandleInteraction, viewToDrawing

Methods inherited from class org.jhotdraw.beans.AbstractBean

addPropertyChangeListener, addPropertyChangeListener, clone, firePropertyChange, firePropertyChange, firePropertyChange, getPropertyChangeListeners, removePropertyChangeListener, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Field Detail

textArea

private FloatingTextArea textArea

typingTarget

private TextHolderFigure typingTarget

rubberbandColor

private java.awt.Color rubberbandColor

Rubberband color of the tool. When this is null, the tool does not draw a rubberband.

Constructor Detail

TextAreaCreationTool

public TextAreaCreationTool(TextHolderFigure prototype)

Creates a new instance.

TextAreaCreationTool

public TextAreaCreationTool(TextHolderFigure prototype,
                            java.util.Map<AttributeKey,java.lang.Object> attributes)

Method Detail

setRubberbandColor

public void setRubberbandColor(java.awt.Color c)

Sets the rubberband color for the tool. Setting this to null, disables the rubberband.

Parameters:

c - Rubberband color or null.

deactivate

public void deactivate(DrawingEditor editor)

Description copied from interface: Tool

Deactivates the tool. This method is called whenever the user switches to another tool.

Specified by:

deactivate in interface Tool

Overrides:

deactivate in class CreationTool

mousePressed

public void mousePressed(java.awt.event.MouseEvent e)

Creates a new figure at the mouse location. If editing is in progress, this finishes editing.

Specified by:

mousePressed in interface java.awt.event.MouseListener

Overrides:

mousePressed in class CreationTool

creationFinished

protected void creationFinished(Figure createdFigure)

This method allows subclasses to do perform additonal user interactions after the new figure has been created. The implementation of this class just invokes fireToolDone.

Overrides:

creationFinished in class CreationTool

draw

public void draw(java.awt.Graphics2D g)

Description copied from interface: Tool

Draws the tool.

Specified by:

draw in interface Tool

Overrides:

draw in class AbstractTool

beginEdit

protected void beginEdit(TextHolderFigure textHolder)

getFieldBounds

private java.awt.geom.Rectangle2D.Double getFieldBounds(TextHolderFigure figure)

endEdit

protected void endEdit()

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent event)

Specified by:

actionPerformed in interface java.awt.event.ActionListener