Package org.eclipse.m2m.atl.adt.ui.preferences

Class ModifyDialogTabPage.Preference

java.lang.Object

java.util.Observable

org.eclipse.m2m.atl.adt.ui.preferences.ModifyDialogTabPage.Preference

Direct Known Subclasses:

ModifyDialogTabPage.ButtonPreference, ModifyDialogTabPage.ComboPreference, ModifyDialogTabPage.NumberPreference, ModifyDialogTabPage.StringPreference

Enclosing class:

ModifyDialogTabPage

protected abstract class ModifyDialogTabPage.Preference
extends Observable

The base class of all Preference classes. A preference class provides a wrapper around one or more SWT widgets and handles the input of values for some key. On each change, the new value is written to the map and the listeners are notified.

Constructor Summary

Constructors

Constructor	Description
Preference(Map<String,String> preferences, String key)	Create a new Preference.

Method Summary

Modifier and Type	Method	Description
abstract org.eclipse.swt.widgets.Control	getControl()	Returns the main control of a preference, which is mainly used to manage the focus.
final boolean	getEnabled()
final String	getKey()
protected final Map<String,String>	getPreferences()
final void	setEnabled(boolean enabled)	Set the enabled state of all SWT widgets of this preference.
final void	setKey(String key)	Set the key which is used to store the value.
protected abstract void	updateWidget()	To be implemented in subclasses.

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Constructor Details

Preference

public Preference(Map<String,String> preferences,
 String key)

Create a new Preference.

Parameters:

preferences - The map where the value is written.

key - The key for which a value is managed.

Method Details

getPreferences

protected final Map<String,String> getPreferences()

Returns:

Gets the map of this Preference.

setEnabled

public final void setEnabled(boolean enabled)

Set the enabled state of all SWT widgets of this preference.

Parameters:

enabled - new value

getEnabled

public final boolean getEnabled()

Returns:

Gets the enabled state of all SWT widgets of this Preference.

setKey

public final void setKey(String key)

Set the key which is used to store the value.

Parameters:

key - New value

getKey

public final String getKey()

Returns:

Gets the currently used key which is used to store the value.

getControl

public abstract org.eclipse.swt.widgets.Control getControl()

Returns the main control of a preference, which is mainly used to manage the focus. This may be null if the preference doesn't have a control which is able to have the focus.

Returns:

The main control

updateWidget

protected abstract void updateWidget()

To be implemented in subclasses. Update the SWT widgets when the state of this object has changed (enabled, key, ...).