Package org.eclipse.nebula.widgets.opal.columnbrowser

Class ColumnItem

java.lang.Object

org.eclipse.nebula.widgets.opal.commons.OpalItem

org.eclipse.nebula.widgets.opal.columnbrowser.ColumnItem

public class ColumnItem
extends OpalItem

Instances of this object are items manipulated by the ColumnBrowser widget. ColumnItems are part of a tree structure .

See Also:

OpalItem

Constructor Summary

Constructors

Constructor	Description
ColumnItem(ColumnBrowserWidget widget)	Constructs a new instance of this class given its parent.
ColumnItem(ColumnBrowserWidget widget, int index)	Constructs a new instance of this class given its parent.
ColumnItem(ColumnItem parent)	Constructs a new instance of this class given its parent.
ColumnItem(ColumnItem parent, int index)	Constructs a new instance of this class given its parent.

Method Summary

Modifier and Type	Method	Description
boolean	equals(java.lang.Object obj)
ColumnItem	getItem(int index)	Returns an item located at a given position
int	getItemCount()
ColumnItem[]	getItems()
ColumnBrowserWidget	getParent()
ColumnItem	getParentItem()
int	hashCode()
int	indexOf(ColumnItem item)	Return the position of a given item in children's list
void	remove(int index)	Remove a children in a given position of this object
void	remove(ColumnItem item)	Remove a given children of this object
void	removeAll()	Remove all children of this object

Methods inherited from class org.eclipse.nebula.widgets.opal.commons.OpalItem

getBackground, getData, getData, getFont, getForeground, getHeight, getImage, getText, setBackground, setData, setData, setFont, setForeground, setHeight, setImage, setText

Methods inherited from class java.lang.Object

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

Constructor Details

ColumnItem

public ColumnItem(ColumnBrowserWidget widget)

Constructs a new instance of this class given its parent. The item is added to the end of the items maintained by its parent.

Parameters:

widget - the widget that will contain this item (can not be null)

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

ColumnItem

public ColumnItem(ColumnBrowserWidget widget, int index)

Constructs a new instance of this class given its parent. The item is added at a given position in the items'list maintained by its parent.

Parameters:

widget - the widget that will contain this item (can not be null)

index - the position

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

ColumnItem

public ColumnItem(ColumnItem parent)

Constructs a new instance of this class given its parent. The item is added to the end of the items maintained by its parent.

Parameters:

widget - the widget that will contain this item (can not be null)

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

ColumnItem

public ColumnItem(ColumnItem parent, int index)

Constructs a new instance of this class given its parent. The item is added at a given position in the items'list maintained by its parent.

Parameters:

widget - the widget that will contain this item (can not be null)

index - the position

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

Method Details

remove

public void remove(ColumnItem item)

Remove a given children of this object

Parameters:

item - the item to remove (can not be null)

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

remove

public void remove(int index)

Remove a children in a given position of this object

Parameters:

index - position of the children in the items'list

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

removeAll

public void removeAll()

Remove all children of this object

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

getItem

public ColumnItem getItem(int index)

Returns an item located at a given position

Parameters:

index - position

Returns:

the item located at the index position

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

getItemCount

public int getItemCount()

Returns:

the number of children

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

getItems

public ColumnItem[] getItems()

Returns:

all children of this item

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

getParent

public ColumnBrowserWidget getParent()

Returns:

the widget that holds this item

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

getParentItem

public ColumnItem getParentItem()

Returns:

the parent item, of null if this item is the root node

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

indexOf

public int indexOf(ColumnItem item)

Return the position of a given item in children's list

Parameters:

item - item to find

Returns:

the position of the children, or -1 if item is a not a children of this object

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

See Also:

Object.hashCode()

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

See Also:

Object.equals(java.lang.Object)