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complete = 1
reviewdate = "1 November 1998"
name = """
dropdown or simple combination box
"""
description = """
A combobox contains an entry field and an associated scrolled
listbox. When an item in the listbox is selected, it is displayed
in the entry field. Optionally, the user may also edit the entry
field directly.
For a simple combobox, the scrolled listbox is displayed beneath
the entry field. For a dropdown combobox (the default), the
scrolled listbox is displayed in a window which pops up beneath
the entry field when the user clicks on an arrow button on the
right of the entry field. Either style allows an optional label.
"""
text = {}
text['options'] = {}
text['options']['autoclear'] = """
If both *autoclear* and *history* are true, clear the entry field
whenever *<Return>* is pressed, after adding the value to the
history list.
"""
text['options']['buttonaspect'] = """
The width of the arrow button as a proportion of the height. The
height of the arrow button is set to the height of the entry
widget.
"""
text['options']['dropdown'] = """
Specifies whether the combobox should be dropdown or simple.
"""
text['options']['fliparrow'] = """
If true, the arrow button is draw upside down when the listbox is
being displayed. Used only in dropdown megawidgets.
"""
text['options']['history'] = """
When *<Return>* is pressed in the entry field, the current value
of the entry field is appended to the listbox if *history* is
true.
"""
text['options']['listheight'] = """
The height, in pixels, of the dropdown listbox.
"""
text['options']['selectioncommand'] = """
The function to call when an item is selected.
If this function takes a long time to run, and you want the entry
field to be updated quickly, call /update_idletasks()/ at the
beginning of the function. Alternatively, wrap the function using
/Pmw.busycallback()/.
"""
text['options']['sticky'] = """
A combination of *'n'*, *'s'*, *'e'* and *'w'* which is used to
position the *entryfield* and *arrowbutton* components within the
*hull* component. This also applies to the *scrolledlist*
component if this is not a dropdown combobox.
"""
text['options']['unique'] = """
If both *unique* and *history* are true, the current value of the
entry field is not added to the listbox if it is already in the
list.
"""
text['components'] = {}
text['components']['arrowbutton'] = """
In a dropdown combobox, the button to popup the listbox.
"""
text['components']['entryfield'] = """
The entry field where the current selection is displayed.
"""
text['components']['popup'] = """
In a dropdown combobox, the dropdown window.
"""
text['components']['scrolledlist'] = """
The scrolled listbox which displays the items to select.
"""
text['methods'] = {}
text['methods']['get'] = """
This is the same as the /get()/ method of the *scrolledlist*
component, except that if 'first' is *None* then
the value of the entry field is returned.
"""
text['methods']['invoke'] = """
If a dropdown combobox, display the dropdown listbox. In a simple
combobox, select the currently selected item in the listbox,
call the *selectioncommand* and return the result.
"""
text['methods']['selectitem'] = """
Select the item in the listbox specified by 'index' which may be
either one of the items in the listbox or the integer index of one
of the items in the listbox.
If 'setentry' is true, also set the entry field to the selected
item.
"""
text['methods']['clear'] = """
Delete all items from the scrolled listbox and delete all text
from the entry widget.
"""
text['methods']['size'] = """
This method is explicitly forwarded to the *scrolledlist*
component's /size()/ method. Without this explicit forwarding,
the /size()/ method (aliased to /grid_size()/) of the *hull* would
be invoked, which is probably not what the programmer intended.
"""
text['methods']['bbox'] = """
This method is explicitly forwarded to the *scrolledlist*
component's /bbox()/ method. Without this explicit forwarding,
the /bbox()/ method (aliased to /grid_bbox()/) of the *hull* would
be invoked, which is probably not what the programmer intended.
"""
|
