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Eclipse Platform
Release 3.0

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org.eclipse.jface.action
Class ContributionItem

java.lang.Object
  org.eclipse.jface.action.ContributionItem

All Implemented Interfaces:

IContributionItem

Direct Known Subclasses:

AbstractGroupMarker, ActionContributionItem, ControlContribution, NewWizardMenu, OpenWithMenu, PerspectiveMenu, StatusLineContributionItem, ToolBarContributionItem

public abstract class ContributionItem

extends Object

implements IContributionItem

An abstract base implementation for contribution items.

Constructor Summary

protected	ContributionItem() Creates a contribution item with a null id.
protected	ContributionItem(String id) Creates a contribution item with the given (optional) id.

Method Summary

void	dispose() The default implementation of this IContributionItem method does nothing.
void	fill(Composite parent) The default implementation of this IContributionItem method does nothing.
void	fill(CoolBar parent, int index) The default implementation of this IContributionItem method does nothing.
void	fill(Menu menu, int index) The default implementation of this IContributionItem method does nothing.
void	fill(ToolBar parent, int index) The default implementation of this IContributionItem method does nothing.
String	getId() Returns the identifier of this contribution item.
IContributionManager	getParent() Returns the parent contribution manager.
boolean	isDirty() The default implementation of this IContributionItem method returns false.
boolean	isDynamic() The default implementation of this IContributionItem method returns false.
boolean	isEnabled() The default implementation of this IContributionItem method returns true.
boolean	isGroupMarker() The default implementation of this IContributionItem method returns false.
boolean	isSeparator() The default implementation of this IContributionItem method returns false.
boolean	isVisible() The default implementation of this IContributionItem method returns the value recorded in an internal state variable, which is true by default.
void	saveWidgetState() The default implementation of this IContributionItem method does nothing.
void	setParent(IContributionManager parent) Sets the parent manager of this item
void	setVisible(boolean visible) The default implementation of this IContributionItem method stores the value in an internal state variable, which is true by default.
String	toString() Returns a string representation of this contribution item suitable only for debugging.
void	update() The default implementation of this IContributionItem method does nothing.
void	update(String id) The ContributionItem implementation of this method declared on IContributionItem does nothing.

Methods inherited from class java.lang.Object

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

Constructor Detail

ContributionItem

protected ContributionItem()

Creates a contribution item with a null id. Calls this(String) with null.

ContributionItem

protected ContributionItem(String id)

Creates a contribution item with the given (optional) id. The given id is used to find items in a contribution manager, and for positioning items relative to other items.

Parameters:

id - the contribution item identifier, or null

Method Detail

dispose

public void dispose()

The default implementation of this IContributionItem method does nothing. Subclasses may override.

Specified by:

dispose in interface IContributionItem

fill

public void fill(Composite parent)

The default implementation of this IContributionItem method does nothing. Subclasses may override.

Specified by:

fill in interface IContributionItem

Parameters:

parent - the parent control

fill

public void fill(Menu menu,
                 int index)

The default implementation of this IContributionItem method does nothing. Subclasses may override.

Specified by:

fill in interface IContributionItem

Parameters:

menu - the parent menu

index - the index where the controls are inserted, or -1 to insert at the end

fill

public void fill(ToolBar parent,
                 int index)

The default implementation of this IContributionItem method does nothing. Subclasses may override.

Specified by:

fill in interface IContributionItem

Parameters:

parent - the parent tool bar

index - the index where the controls are inserted, or -1 to insert at the end

fill

public void fill(CoolBar parent,
                 int index)

The default implementation of this IContributionItem method does nothing. Subclasses may override.

Specified by:

fill in interface IContributionItem

Parameters:

parent - the parent cool bar

index - the index where the controls are inserted, or -1 to insert at the end

Since:

3.0

saveWidgetState

public void saveWidgetState()

The default implementation of this IContributionItem method does nothing. Subclasses may override.

Specified by:

saveWidgetState in interface IContributionItem

Since:

3.0

getId

public String getId()

Description copied from interface: IContributionItem

Returns the identifier of this contribution item. The id is used for retrieving an item from its manager.

Specified by:

getId in interface IContributionItem

Returns:

the contribution item identifier, or null if none

getParent

public IContributionManager getParent()

Returns the parent contribution manager.

Returns:

the parent contribution manager

Since:

2.0

isDirty

public boolean isDirty()

The default implementation of this IContributionItem method returns false. Subclasses may override.

Specified by:

isDirty in interface IContributionItem

Returns:

true if this item is dirty

isEnabled

public boolean isEnabled()

The default implementation of this IContributionItem method returns true. Subclasses may override.

Specified by:

isEnabled in interface IContributionItem

Returns:

true if this item is enabled

isDynamic

public boolean isDynamic()

The default implementation of this IContributionItem method returns false. Subclasses may override.

Specified by:

isDynamic in interface IContributionItem

Returns:

true if this item is dynamic, and false for normal items

isGroupMarker

public boolean isGroupMarker()

The default implementation of this IContributionItem method returns false. Subclasses may override.

Specified by:

isGroupMarker in interface IContributionItem

Returns:

true if this item is a group marker, and false for normal items

See Also:

GroupMarker, IContributionManager.appendToGroup(java.lang.String, org.eclipse.jface.action.IAction), IContributionManager.prependToGroup(java.lang.String, org.eclipse.jface.action.IAction)

isSeparator

public boolean isSeparator()

The default implementation of this IContributionItem method returns false. Subclasses may override.

Specified by:

isSeparator in interface IContributionItem

Returns:

true if this item is a separator, and false for normal items

See Also:

Separator

isVisible

public boolean isVisible()

The default implementation of this IContributionItem method returns the value recorded in an internal state variable, which is true by default. setVisible should be used to change this setting.

Specified by:

isVisible in interface IContributionItem

Returns:

true if this item is visible, and false otherwise

setVisible

public void setVisible(boolean visible)

The default implementation of this IContributionItem method stores the value in an internal state variable, which is true by default.

Specified by:

setVisible in interface IContributionItem

Parameters:

visible - true if this item should be visible, and false otherwise

toString

public String toString()

Returns a string representation of this contribution item suitable only for debugging.

update

public void update()

The default implementation of this IContributionItem method does nothing. Subclasses may override.

Specified by:

update in interface IContributionItem

setParent

public void setParent(IContributionManager parent)

Description copied from interface: IContributionItem

Sets the parent manager of this item

Specified by:

setParent in interface IContributionItem

Parameters:

parent - the parent contribution manager

update

public void update(String id)

The ContributionItem implementation of this method declared on IContributionItem does nothing. Subclasses should override to update their state.

Specified by:

update in interface IContributionItem

Parameters:

id - the id of the changed property