org.eclipse.swt.custom
Class PopupList

java.lang.Object
  |
  +--org.eclipse.swt.custom.PopupList

public class PopupList

extends Object

A PopupList is a list of selectable items that appears in its own shell positioned above its parent shell. It it used for selecting items when editing a Table cell (similar to the list that appears when you open a Combo box). The list will be positioned so that does not run off the screen and the largest number of items are visible. It may appear above the current cursor location or below it depending how close you are to the edge of the screen.

Constructor Summary

PopupList(Shell parent)
Creates a PopupList above the specified shell.

Method Summary

Font	getFont() Gets the widget font.
String[]	getItems() Gets the items.
int	getMinimumWidth() Gets the minimum width of the list.
String	open(Rectangle rect) Launches the Popup List, waits for an item to be selected and then closes PopupList.
void	select(String string) Selects an item with text that starts with specified String.
void	setFont(Font font) Sets the widget font.
void	setItems(String[] strings) Sets all items.
void	setMinimumWidth(int width) Sets the minimum width of the list.

Methods inherited from class java.lang.Object

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

Constructor Detail

PopupList

public PopupList(Shell parent)

Creates a PopupList above the specified shell.

Method Detail

getFont

public Font getFont()

Gets the widget font.

Returns:

the widget font

Throws:

SWTError -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

getItems

public String[] getItems()

Gets the items.

This operation will fail if the items cannot be queried from the OS.

Returns:

the items in the widget

Throws:

SWTError -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed
• ERROR_CANNOT_GET_ITEM when the operation fails

getMinimumWidth

public int getMinimumWidth()

Gets the minimum width of the list.

Returns:

the minimum width of the list

open

public String open(Rectangle rect)

Launches the Popup List, waits for an item to be selected and then closes PopupList.

Parameters:

rect - the initial size and location of the PopupList; the dialog will be positioned so that it does not run off the screen and the largest number of items are visible

Returns:

the text of the selected item or null if no item is selected

select

public void select(String string)

Selects an item with text that starts with specified String.

If the item is not currently selected, it is selected. If the item at an index is selected, it remains selected. If the string is not matched, it is ignored.

Parameters:

string - the text of the item

Throws:

SWTError -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

setFont

public void setFont(Font font)

Sets the widget font.

When new font is null, the font reverts to the default system font for the widget.

Parameters:

font - the new font (or null)

Throws:

SWTError -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

setItems

public void setItems(String[] strings)

Sets all items.

The previous selection is cleared. The previous items are deleted. The new items are added. The top index is set to 0.

Throws:

SWTError -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed
• ERROR_NULL_ARGUMENT when items is null
• ERROR_ITEM_NOT_ADDED when the operation fails

setMinimumWidth

public void setMinimumWidth(int width)

Sets the minimum width of the list.

Parameters:

width - the minimum width of the list