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feedback - Create and manipulate a feedback widget to
display feedback on the current status of an ongoing operation
to the user.
feedback pathName ?options?
itk::Widget <- Labeledwidget <- Feedback
background cursor foreground highlightColor
highlightThickness
See the "options" manual entry for details on the standard
options.
labelBitmap labelFont labelImage labelMargin
- labelPos
- labelText labelVariable
See the "labeledwidget" class manual entry for details on
the inherited options.
- Name:
- barcolor
- Class:
- BarColor
- Command-Line Switch:
- -barcolor
Specifies the color of the status bar, in any of the
forms acceptable to Tk_GetColor. The default is
DodgerBlue.
- Name:
- barheight
- Class:
- BarHeight
- Command-Line Switch:
- -barheight
Specifies the height of the status bar, in any of the
forms acceptable to Tk_GetPixels. The default is 20.
- Name:
- troughColor
- Class:
- TroughColor
- Command-Line Switch:
- -troughcolor
Specifies the color of the frame in which the status
bar sits, in any of the forms acceptable to
Tk_GetColor. The default is white.
- Name:
- steps
- Class:
- Steps
- Command-Line Switch:
- -steps
Specifies the total number of steps for the status bar.
The default is 10.
The feedback command creates a widget to display feedback on
the current status of an ongoing operation to the user.
Display is given as a percentage and as a thermometer type
bar. Options exist for adding a label and controlling its
position.
The feedback command creates a new Tcl command whose name is
pathName. This command may be used to invoke various operations
on the widget. It has the following general form:
pathName option ?arg arg ...?
Option and the args determine the exact behavior of the command.
The following commands are possible for scrolledtext
widgets:
pathName cget option
Returns the current value of the configuration option
given by option. Option may have any of the values
accepted by the scrolledhtml 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 feedback command.
pathName reset
Reset the current number of steps completed to 0, and
configures the percentage complete label text to 0%
pathName step ?inc?
Increase the current number of steps completed by the
amount specified by inc. Inc defaults to 1.
feedback .fb -labeltext "Status" -steps 20
pack .fb -padx 10 -pady 10 -fill both -expand yes
for {set i 0} {$i < 20} {incr i} {
.fb step
after 500
}
Sam Shen
This code is based largely on his feedback.tcl code
from tk inspect. The original feedback code is copyright
1995 Lawrence Berkeley Laboratory.
Kris Raney
feedback, widget
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