tixControl - Create and manipulate tixControl widgets
SYNOPSIS
tixControl pathName ?options?
SUPER-CLASS
The TixControl class is derived from the TixLabelWidget
class and inherits all the commands, options and subwidgets of its
super-class.
STANDARD OPTIONS
The Control widget supports all the standard options of a frame
widget. See the options(n) manual entry for details on the
standard options.
WIDGET-SPECIFIC OPTIONS
[ -allowempty allowEmpty AllowEmpty ]
Specifies whether the Control widget should allow the empty string
as a valid input.
[ -autorepeat autorepeat AutoRepeat ]
Specifies whether the Control widget should have autorepeat behavior.
If set to be "true", the value of the Control widget will be
automatically incremented or decremented when the user holds down the
mouse button over the arrow buttons. Only values "true" and
"false" will be recognized.
[ -command command Command ]
Specifies the command to be called when the -value option of
the Control widget is changed. The command will be called with one
arguments -- the new value of the Control widget.
[ -decrcmd decrCmd DecrCmd ]
Specifies a TCL command to be called when the the user presses the
down-arrow button subwidget. This command is called with one parameter
-- the current -value of this Control widget. This
command is to decrement this value by one step, according to its own
definition of "decrement", and return the decremented value, which
will be stored in the -value of this Control widget.
[ -disablecallback disableCallback DisableCallback ]
A boolean value indicating whether callbacks should be disabled. When
set to true, the TCL command specified by the -command option
is not executed when the -value of the Control widget
changes.
[ -disableforeground disableForeground DisableForeground ]
The foreground color to use for of the entry subwidget when the
Control widget is disabled.
[ -incrcmd incrCmd IncrCmd ]
Specifies a TCL command to be called when the the user presses the
up-arrow button subwidget. This command is called with one parameter
-- the current -value of this Control widget. This
command is to increment this value by one step, according to its own
definition of "increment", and return the incremented value, which
will be stored in the -value of this Control widget.
[ -initwait initwait Initwait ]
Specifies how long the Control widget should wait initially before
it starts to automatically increment or decrement its value in the
autorepeat mode. In milliseconds.
[ -integer integer Integer ]
A Boolean value specifying whether only integer numbers are accepted.
[ -label label Label ]
Specifies the string to display as the label of this Control widget.
[ -labelside labelSide LabelSide ]
Specifies where the label should be displayed relative to the entry
subwidget. Valid options are: top, left, right,
bottom, none or acrosstop.
Name: max
Class: Max
Switch: -max
Alias: -ulimit
Specifies the upper limit of the value of the Control widget. When set
to empty string, the Control widget has no upper limit.
Name: min
Class: Min
Switch: -min
Alias: -llimit
Specifies the lower limit of the value of the Control widget.When set
to empty string, the Control widget has no lower limit.
[ -repeatrate repeatRate RepeatRate ]
Specifies how often the value of the Control widget should be
incremented or decremented when it is in the autorepeat mode. In
milliseconds.
[ -selectmode selectMode SelectMode ]
Specifies how the Control widget should react to <KeyPress>
events. When set to "immediate", any user keyboard inputs will
immediately change the -value option. When set to "normal", the
user keyboard inputs will be copied to the -value option only
if the <Return> key is pressed or the keyboard focus is
changed. The use of the immediate mode is discouraged. For effective
use of the Control widget, one should use the normal mode together
with the update widget command (see below).
[ -state state State ]
Specifies the whether the Control widget is normal or
disabled. Only the values "normal" and "disabled" are recognized.
[ -step step Step ]
Specifies by how much the value of the Control widget should be
incremented or decrmented when the user press the arrow buttons.
[ -validatecmd validateCmd ValidateCmd ]
Specifies a TCL command to be called when the -value of the
Control widget is about to change. This command is called
with one parameter -- the new -value entered by the user. This
command is to validate this new value by returning a value it deems
valid.
[ -value value Value ]
Specifies the value of the Control widget.
[ -variable variable Variable ]
Specifies the global variable in which the value of the
Control widget should be stored. The value of the Control widget
will be automatically updated when this variable is changed.
SUBWIDGETS
Name: decr
Class: Button
The down arrow button.
Name: entry
Class: Entry
The entry that shows the value of this Control widget.
Name: incr
Class: Button
The up arrow button.
Name: label
Class: Label
The label subwidget.
DESCRIPTION
The tixControl command creates a new window (given by the
pathName argument) and makes it into a Control widget.
Additional options, described above, may be specified on the command
line or in the option database to configure aspects of the
Control widget such as its cursor and relief.
The Control widget is also known as the SpinBox widget.
It is generally used to control a value. The user can adjust the value
by pressing the two arrow buttons or by entering the value directly
into the entry. The new value will be checked against the user-defined
upper and lower limits.
WIDGET COMMANDS
The tixControl command creates a new Tcl command whose name is
the same as the path name of the Control widget's window. This
command may be used to invoke various operations on the widget. It has
the following general form:
pathName option ?arg arg ...?
PathName is the name of the command, which is the same as the
Control widget's path name. Option and the args
determine the exact behavior of the command. The following commands
are possible for Control widgets:
pathName cgetoption
Returns the current value of the configuration option given by
option. Option may have any of the values accepted by the
tixControl command.
pathName configure ?option? ?value option value ...?
Query or modify the configuration options of the widget. If no
option is specified, returns a list describing all of the
available options for pathName (see Tk_ConfigureInfo for
information on the format of this list). If option is specified
with no value, then the command returns a list describing the
one named option (this list will be identical to the corresponding
sublist of the value returned if no option is specified). 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. Option may have
any of the values accepted by the tixControl command.
pathName decr
Decrements the value of the Control widget by the step specified
by the -step option.
pathName incr
Increments the value of the Control widget by the step
specified by the -step option.
pathName invoke
Causes the command specified by the -command option to be
invoked.
pathName update
If the user has modified the entry using keyboard inputs, the update
command will update the -value of this Control
widget. When the Control widget's -selectmode option is set to
"normal", one should call the update command on this widget
before examining its -value option. This command has no effect
in if the -selectmode option is set to "immediate".
pathName subwidget name ?args?
When no options are given, this command returns the pathname of the
subwidget of the specified name.
When options are given, the widget command of the specified subwidget
will be called with these options.
BINDINGS
When the user presses the up/down arrow buttons (or press the <Up> and
<Down> arrow keys on the keyboard), the value of the tixControl widget
is adjusted according to the -validatecmd, -incrcmd,
-decrcmd, -step, -max and -min options.