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## weka.gui
Class CostMatrixEditor

    java.lang.Object
      weka.gui.CostMatrixEditor

All Implemented Interfaces:
  java.beans.PropertyEditor

    public class CostMatrixEditor

extends java.lang.Object
implements java.beans.PropertyEditor

Class for editing CostMatrix objects. Brings up a custom editing panel with which the user can edit the matrix interactively, as well as save load cost matrices from files.

Version:
  $Revision: 1.7 $
Author:
  Richard Kirkby (rkirkby@cs.waikato.ac.nz)

Constructor Summary
`CostMatrixEditor()` Constructs a new CostMatrixEditor.

Method Summary
`void` | `addPropertyChangeListener(java.beans.PropertyChangeListener listener)` Adds an object to the list of those that wish to be informed when the cost matrix changes.
`java.lang.String` | `getAsText()` Some objects can be represented as text, but a cost matrix cannot.
`java.awt.Component` | `getCustomEditor()` Gets a GUI component with which the user can edit the cost matrix.
`java.lang.String` | `getJavaInitializationString()` Returns the Java code that generates an object the same as the one being edited.
`java.lang.String[]` | `getTags()` Some objects can return tags, but a cost matrix cannot.
`java.lang.Object` | `getValue()` Gets the cost matrix that is being edited.
`boolean` | `isPaintable()` Indicates whether the object can be represented graphically.
`void` | `paintValue(java.awt.Graphics gfx, java.awt.Rectangle box)` Paints a graphical representation of the object.
`void` | `removePropertyChangeListener(java.beans.PropertyChangeListener listener)` Removes an object from the list of those that wish to be informed when the cost matrix changes.
`void` | `setAsText(java.lang.String text)` Some objects can be represented as text, but a cost matrix cannot.
`void` | `setValue(java.lang.Object value)` Sets the value of the CostMatrix to be edited.
`boolean` | `supportsCustomEditor()` Indicates whether the cost matrix can be edited in a GUI, which it can.

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### CostMatrixEditor

    public CostMatrixEditor()

  Constructs a new CostMatrixEditor.

Method Detail

### setValue

    public void setValue(java.lang.Object value)

  Sets the value of the CostMatrix to be edited.

  Specified by:
    `setValue` in interface `java.beans.PropertyEditor`
  Parameters:
    `value` - a CostMatrix object to be edited

### getValue

    public java.lang.Object getValue()

  Gets the cost matrix that is being edited.

  Specified by:
    `getValue` in interface `java.beans.PropertyEditor`
  Returns:
    the edited CostMatrix object

### isPaintable

    public boolean isPaintable()

  Indicates whether the object can be represented graphically. In this case it can.

  Specified by:
    `isPaintable` in interface `java.beans.PropertyEditor`
  Returns:
    true

### paintValue

    public void paintValue(java.awt.Graphics gfx,
                           java.awt.Rectangle box)

  Paints a graphical representation of the object. For the cost matrix it prints out the text "X x X matrix", where X is the size of the matrix.

  Specified by:
    `paintValue` in interface `java.beans.PropertyEditor`
  Parameters:
    `gfx` - the graphics context to draw the representation to
    `box` - the bounds within which the representation should fit.

### getJavaInitializationString

    public java.lang.String getJavaInitializationString()

  Returns the Java code that generates an object the same as the one being edited. Unfortunately this can't be done in a single line of code, so the code returned will only build a default cost matrix of the same size.

  Specified by:
    `getJavaInitializationString` in interface `java.beans.PropertyEditor`
  Returns:
    the initialization string

### getAsText

    public java.lang.String getAsText()

  Some objects can be represented as text, but a cost matrix cannot.

  Specified by:
    `getAsText` in interface `java.beans.PropertyEditor`
  Returns:
    null

### setAsText

    public void setAsText(java.lang.String text)

  Some objects can be represented as text, but a cost matrix cannot.

  Specified by:
    `setAsText` in interface `java.beans.PropertyEditor`
  Parameters:
    `text` - ignored
  Throws:
    `always` - throws an IllegalArgumentException

### getTags

    public java.lang.String[] getTags()

  Some objects can return tags, but a cost matrix cannot.

  Specified by:
    `getTags` in interface `java.beans.PropertyEditor`
  Returns:
    null

### getCustomEditor

    public java.awt.Component getCustomEditor()

  Gets a GUI component with which the user can edit the cost matrix.

  Specified by:
    `getCustomEditor` in interface `java.beans.PropertyEditor`
  Returns:
    an editor GUI component

### supportsCustomEditor

    public boolean supportsCustomEditor()

  Indicates whether the cost matrix can be edited in a GUI, which it can.

  Specified by:
    `supportsCustomEditor` in interface `java.beans.PropertyEditor`
  Returns:
    true

### addPropertyChangeListener

    public void addPropertyChangeListener(java.beans.PropertyChangeListener listener)

  Adds an object to the list of those that wish to be informed when the cost matrix changes.

  Specified by:
    `addPropertyChangeListener` in interface `java.beans.PropertyEditor`
  Parameters:
    `listener` - a new listener to add to the list

### removePropertyChangeListener

    public void removePropertyChangeListener(java.beans.PropertyChangeListener listener)

  Removes an object from the list of those that wish to be informed when the cost matrix changes.

  Specified by:
    `removePropertyChangeListener` in interface `java.beans.PropertyEditor`
  Parameters:
    `listener` - the listener to remove from the list

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