ttk::widget - phpMan

ttk::widget(n) Tk Themed Widget ttk::widget(n)

_________________________________________________________________________________________________

NAME
ttk::widget - Standard options and commands supported by Tk themed widgets
_________________________________________________________________

DESCRIPTION
This manual describes common widget options and commands.

STANDARD OPTIONS
The following options are supported by all Tk themed widgets: [-class undefined] Specifies
the window class. The class is used when querying the option database for the window's
other options, to determine the default bindtags for the window, and to select the wid-
get's default layout and style. This is a read-only option: it may only be specified when
the window is created, and may not be changed with the configure widget command. [-cur-
sor cursor] Specifies the mouse cursor to be used for the widget. See Tk_GetCursor and
cursors(n) in the Tk reference manual for the legal values. If set to the empty string
(the default), the cursor is inherited from the parent widget. [-takefocus takeFocus]
Determines whether the window accepts the focus during keyboard traversal. Either 0, 1, a
command prefix (to which the widget path is appended, and which should return 0 or 1), or
the empty string. See options(n) in the Tk reference manual for the full description.
[-style style] May be used to specify a custom widget style.

SCROLLABLE WIDGET OPTIONS
The following options are supported by widgets that are controllable by a scrollbar. See
scrollbar(n) for more information [-xscrollcommand xScrollCommand] A command prefix, used
to communicate with horizontal scrollbars.
When the view in the widget's window changes, the widget will generate a Tcl com-
mand by concatenating the scroll command and two numbers. Each of the numbers is a
fraction between 0 and 1 indicating a position in the document; 0 indicates the
beginning, and 1 indicates the end. The first fraction indicates the first infor-
mation in the widget that is visible in the window, and the second fraction indi-
cates the information just after the last portion that is visible.

Typically the xScrollCommand option consists of the path name of a scrollbar widget
followed by "set", e.g. ".x.scrollbar set". This will cause the scrollbar to be
updated whenever the view in the window changes.

If this option is set to the empty string (the default), then no command will be
executed.
[-yscrollcommand yScrollCommand] A command prefix, used to communicate with vertical
scrollbars. See the description of -xscrollcommand above for details.

LABEL OPTIONS
The following options are supported by labels, buttons, and other button-like widgets:
[-text text] Specifies a text string to be displayed inside the widget (unless overridden
by -textvariable). [-textvariable textVariable] Specifies the name of a global variable
whose value will be used in place of the -text resource. [-underline underline] If set,
specifies the integer index (0-based) of a character to underline in the text string. The
underlined character is used for mnemonic activation. [-image image] Specifies an image
to display. This is a list of 1 or more elements. The first element is the default image
name. The rest of the list is a sequence of statespec / value pairs as per style map,
specifying different images to use when the widget is in a particular state or combination
of states. All images in the list should have the same size. [-compound compound] Speci-
fies how to display the image relative to the text, in the case both -text and -image are
present. Valid values are:

text Display text only.

image Display image only.

center Display text centered on top of image.

top

bottom

left

right Display image above, below, left of, or right of the text, respectively.

none The default; display the image if present, otherwise the text.
[-width width] If greater than zero, specifies how much space, in character widths, to
allocate for the text label. If less than zero, specifies a minimum width. If zero or
unspecified, the natural width of the text label is used.

COMPATIBILITY OPTIONS
[-state state] May be set to normal or disabled to control the disabled state bit. This
is a write-only option: setting it changes the widget state, but the state widget command
does not affect the -state option.

COMMANDS
pathName cget option
Returns the current value of the configuration option given by option.

pathName configure ?option? ?value option value ...?
Query or modify the configuration options of the widget. If one or more
option-value pairs are specified, then the command modifies the given widget
option(s) to have the given value(s); in this case the command returns an empty
string. If option is specified with no value, then the command returns a list
describing the named option: the elements of the list are the option name, database
name, database class, default value, and current value. If no option is specified,
returns a list describing all of the available options for pathName.

pathName identify element x y
Returns the name of the element under the point given by x and y, or an empty
string if the point does not lie within any element. x and y are pixel coordinates
relative to the widget. Some widgets accept other identify subcommands.

pathName instate statespec ?script?
Test the widget's state. If script is not specified, returns 1 if the widget state
matches statespec and 0 otherwise. If script is specified, equivalent to
if {[pathName instate stateSpec]} script

pathName state ?stateSpec?
Modify or inquire widget state. If stateSpec is present, sets the widget state:
for each flag in stateSpec, sets the corresponding flag or clears it if prefixed by
an exclamation point.
Returns a new state spec indicating which flags were changed:
set changes [pathName state spec]
pathName state $changes
will restore pathName to the original state. If stateSpec is not specified,
returns a list of the currently-enabled state flags.

WIDGET STATES
The widget state is a bitmap of independent state flags. Widget state flags include:

active The mouse cursor is over the widget and pressing a mouse button will cause some
action to occur. (aka "prelight" (Gnome), "hot" (Windows), "hover").

disabled
Widget is disabled under program control (aka "unavailable", "inactive")

focus Widget has keyboard focus

pressed
Widget is being pressed (aka "armed" in Motif).

selected
"On", "true", or "current" for things like checkbuttons and radiobuttons.

background
Windows and the Mac have a notion of an "active" or foreground window. The back-
ground state is set for widgets in a background window, and cleared for those in
the foreground window.

readonly
Widget should not allow user modification.

alternate
A widget-specific alternate display format. For example, used for checkbuttons and
radiobuttons in the "tristate" or "mixed" state, and for buttons with -default
active.

invalid
The widget's value is invalid. (Potential uses: scale widget value out of bounds,
entry widget value failed validation.)

hover The mouse cursor is within the widget. This is similar to the active state; it is
used in some themes for widgets that provide distinct visual feedback for the
active widget in addition to the active element within the widget.

A state specification or stateSpec is a list of state names, optionally prefixed with an
exclamation point (!) indicating that the bit is off.

EXAMPLES
set b [ttk::button .b]

# Disable the widget:
$b state disabled

# Invoke the widget only if it is currently pressed and enabled:
$b instate {pressed !disabled} { .b invoke }

# Reenable widget:
$b state !disabled