- NAME
- ttk::combobox — text field with popdown selection list
- SYNOPSIS
- DESCRIPTION
- STANDARD OPTIONS
- -class, undefined, undefined
- -cursor, cursor, Cursor
- -placeholder, placeHolder, PlaceHolder
- -placeholderforeground, placeHolderForeground, PlaceHolderForeground
- -style, style, Style
- -takefocus, takeFocus, TakeFocus
- WIDGET-SPECIFIC OPTIONS
- -exportselection, exportSelection, ExportSelection
- -justify, justify, Justify
- -height, height, Height
- -postcommand, postCommand, PostCommand
- -state, state, State
- -textvariable, textVariable, TextVariable
- -values, values, Values
- -width, width, Width
- WIDGET COMMAND
- pathName current ?newIndex?
- pathName get
- pathName set value
- VIRTUAL EVENTS
- STYLING OPTIONS
- SEE ALSO
- KEYWORDS
ttk::combobox — text field with popdown selection list
ttk::combobox pathName ?
options?
A
ttk::combobox combines a text field with a pop-down list of values;
the user may select the value of the text field from among the
values in the list.
- -class, undefined, undefined
- -cursor, cursor, Cursor
- -placeholder, placeHolder, PlaceHolder
- -placeholderforeground, placeHolderForeground, PlaceHolderForeground
- -style, style, Style
- -takefocus, takeFocus, TakeFocus
- Command-Line Name: -exportselection
- Database Name: exportSelection
- Database Class: ExportSelection
- Boolean value.
If set, the widget selection is linked to the X selection.
- Command-Line Name: -justify
- Database Name: justify
- Database Class: Justify
- Specifies how the text is aligned within the widget.
Must be one of left, center, or right.
- Command-Line Name: -height
- Database Name: height
- Database Class: Height
- Specifies the height of the pop-down listbox, in rows.
- Command-Line Name: -postcommand
- Database Name: postCommand
- Database Class: PostCommand
- A Tcl script to evaluate immediately before displaying the listbox.
The -postcommand script may specify the -values to display.
- Command-Line Name: -state
- Database Name: state
- Database Class: State
- One of normal, readonly, or disabled.
In the readonly state,
the value may not be edited directly, and
the user can only select one of the -values from the
dropdown list.
In the normal state,
the text field is directly editable.
In the disabled state, no interaction is possible.
- Command-Line Name: -textvariable
- Database Name: textVariable
- Database Class: TextVariable
- Specifies the name of a global variable whose value is linked
to the widget value.
Whenever the variable changes value the widget value is updated,
and vice versa.
- Command-Line Name: -values
- Database Name: values
- Database Class: Values
- Specifies the list of values to display in the drop-down listbox.
- Command-Line Name: -width
- Database Name: width
- Database Class: Width
- Specifies an integer value indicating the desired width of the entry window,
in average-size characters of the widget's font.
In addition to the standard
cget,
configure,
identify element,
instate,
state and
style
commands (see
ttk::widget),
combobox widgets support the following additional commands:
- pathName current ?newIndex?
-
If newIndex is supplied, sets the combobox value
to the element at position newIndex in the list of -values
(in addition to integers, the end index is supported and indicates
the last element of the list, moreover the same simple interpretation as
for the command string index is supported, with simple integer index
arithmetic and indexing relative to end).
Otherwise, returns the index of the current value in the list of
-values or {} if the current value does not appear in the list.
- pathName get
-
Returns the current value of the combobox.
- pathName set value
-
Sets the value of the combobox to value.
The combobox widget also supports the following ttk::entry
widget commands:
bbox | delete | icursor |
index | insert | selection |
xview |
The combobox widget generates a
<<ComboboxSelected>> virtual event
when the user selects an element from the list of values.
If the selection action unposts the listbox,
this event is delivered after the listbox is unposted.
The class name for a
ttk::combobox is
TCombobox.
The
ttk::combobox uses the
entry and
listbox widgets internally.
The listbox frame has a class name of
ComboboxPopdownFrame.
Dynamic states: disabled, focus, pressed, readonly.
TCombobox styling options configurable with ttk::style
are:
-arrowcolor color
-arrowsize amount
-background color
-bordercolor color
-darkcolor color
-focusfill color
-foreground color
-fieldbackground color
-
Can only be changed when using non-native and non-graphical themes.
-insertcolor color
-insertwidth amount
-lightcolor color
-padding padding
-placeholderforeground color
-postoffset padding
-selectbackground color
-
Text entry select background.
-selectforeground color
-
Text entry select foreground.
The ttk::combobox popdown listbox cannot be configured using
ttk::style nor via the widget configure command. The listbox
can be configured using the option database.
option add *TCombobox*Listbox.background color
option add *TCombobox*Listbox.font font
option add *TCombobox*Listbox.foreground color
option add *TCombobox*Listbox.selectBackground color
option add *TCombobox*Listbox.selectForeground color
To configure a specific listbox (subject to future change):
set popdown [ttk::combobox::PopdownWindow .mycombobox]
$popdown.f.l configure -font font
ComboboxPopdownFrame
styling options configurable with ttk::style
are:
-borderwidth amount
-relief relief
Some options are only available for specific themes.
See the ttk::style manual page for information on how to configure
ttk styles.
ttk::widget,
ttk::entry
choice,
entry,
list box,
text box,
widget
Copyright © 2004 Joe English