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java.lang.Objectjavax.swing.AbstractAction
org.jhotdraw.app.action.AbstractProjectAction
public abstract class AbstractProjectAction
An Action that acts on on the current Project
of an
Application
.
If the current Project object is disabled or is null, the
AbstractProjectAction is disabled as well.
A property name can be specified. When the specified property changes or when the current project changes, method updateProperty is invoked.
Project
,
Application
,
Serialized FormField Summary |
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Fields inherited from class javax.swing.AbstractAction |
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changeSupport, enabled |
Fields inherited from interface javax.swing.Action |
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ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SHORT_DESCRIPTION, SMALL_ICON |
Constructor Summary | |
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AbstractProjectAction(Application app)
Creates a new instance. |
Method Summary | |
---|---|
Application |
getApplication()
|
Project |
getCurrentProject()
|
protected java.lang.String |
getPropertyName()
Gets the property name. |
protected void |
installProjectListeners(Project p)
Installs listeners on the project object. |
boolean |
isEnabled()
Returns true if the action is enabled. |
void |
setEnabled(boolean newValue)
Enables or disables the action. |
protected void |
setPropertyName(java.lang.String name)
Sets the property name. |
protected void |
uninstallProjectListeners(Project p)
Installs listeners on the project object. |
protected void |
updateEnabled(boolean oldValue,
boolean newValue)
Updates the enabled state of this action depending on the new enabled state of the project. |
protected void |
updateProject(Project oldValue,
Project newValue)
Updates the listeners of this action depending on the current project of the application. |
protected void |
updateProperty()
This method is invoked, when the property changed and when the project changed. |
Methods inherited from class javax.swing.AbstractAction |
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addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, putValue, removePropertyChangeListener |
Methods inherited from class java.lang.Object |
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equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface java.awt.event.ActionListener |
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actionPerformed |
Constructor Detail |
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public AbstractProjectAction(Application app)
Method Detail |
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protected void updateProject(Project oldValue, Project newValue)
protected void setPropertyName(java.lang.String name)
protected java.lang.String getPropertyName()
protected void updateProperty()
protected void installProjectListeners(Project p)
protected void uninstallProjectListeners(Project p)
protected void updateEnabled(boolean oldValue, boolean newValue)
public Application getApplication()
public Project getCurrentProject()
public boolean isEnabled()
isEnabled
in interface javax.swing.Action
isEnabled
in class javax.swing.AbstractAction
Action.isEnabled()
public void setEnabled(boolean newValue)
setEnabled
in interface javax.swing.Action
setEnabled
in class javax.swing.AbstractAction
newValue
- true to enable the action, false to
disable itAction.setEnabled(boolean)
|
Copyright 1996-2007 (c) JHotDraw.org. Some rights reserved. |
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