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[/] [or1k_old/] [trunk/] [insight/] [itcl/] [iwidgets3.0.0/] [demos/] [html/] [feedback.n.html] - Rev 578
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<H1>iwidgets2.2.0 User Commands - feedback</H1>
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<PRE>
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<H2><HR ALIGN=LEFT WIDTH=70% SIZE=3></H2><PRE>
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<H2>NAME</H2><PRE>
feedback - Create and manipulate a feedback widget to
display feedback on the current status of an ongoing opera-
tion to the user.
</PRE>
<H2>SYNOPSIS</H2><PRE>
<STRONG>feedback</STRONG> <EM>pathName</EM> ?<EM>options</EM>?
</PRE>
<H2>INHERITANCE</H2><PRE>
itk::Widget <- Labeledwidget <- Feedback
</PRE>
<H2>STANDARD OPTIONS</H2><PRE>
<STRONG>background</STRONG> <STRONG>borderWidth</STRONG> <STRONG>cursor</STRONG> <STRONG>foreground</STRONG>
<STRONG>highlightColor</STRONG> <STRONG>highlightThickness</STRONG> <STRONG>relief</STRONG>
See the "options" manual entry for details on the standard
options.
</PRE>
<H2>INHERITED OPTIONS</H2><PRE>
<STRONG>labelBitmap</STRONG> <STRONG>labelFont</STRONG> <STRONG>labelImage</STRONG> <STRONG>labelMargin</STRONG>
<STRONG>labelPos</STRONG> <STRONG>labelText</STRONG> <STRONG>labelVariable</STRONG>
See the "labeledwidget" class manual entry for details on
the inherited options.
</PRE>
<H2>WIDGET-SPECIFIC OPTIONS</H2><PRE>
Name: <STRONG>barColor</STRONG>
Class: <STRONG>BarColor</STRONG>
Command-Line Switch: <STRONG>-barcolor</STRONG>
Specifies the color of the status bar, in any of the
forms acceptable to <STRONG>Tk_GetColor</STRONG>.
Name: <STRONG>barHeight</STRONG>
Class: <STRONG>BarHeight</STRONG>
Command-Line Switch: <STRONG>-barheight</STRONG>
Specifies the height of the status bar, in any of the
forms acceptable to <STRONG>Tk_GetPixels</STRONG>.
Name: <STRONG>barWidth</STRONG>
Class: <STRONG>BarWidth</STRONG>
Command-Line Switch: <STRONG>-barwidth</STRONG>
Specifies the total width of the status bar (when
full,) in any of the forms acceptable to <STRONG>Tk_GetPixels</STRONG>.
Name: <STRONG>elementBorderWidth</STRONG>
Class: <STRONG>BorderWidth</STRONG>
Command-Line Switch: <STRONG>-elementborderwidth</STRONG>
Sets the width of the border around the status bar, in
any of the forms acceptable to <STRONG>Tk_GetPixels</STRONG>. If it is
set to zero, the status bar has no border.
Name: <STRONG>steps</STRONG>
Class: <STRONG>Steps</STRONG>
Command-Line Switch: <STRONG>-steps</STRONG>
Specifies the total number of steps for the status bar.
The default is 10.
</PRE>
<H2>DESCRIPTION</H2><PRE>
The <STRONG>feedback</STRONG> command creates a feedback widget to display
feedback on the current status of an ongoing operation to
the user. Display is given as a percentage and as a thermom-
eter type bar. Options exist for adding a label and control-
ling its position.
</PRE>
<H2>METHODS</H2><PRE>
The <STRONG>feedback</STRONG> command creates a new Tcl command whose name is
<EM>pathName</EM>. This command may be used to invoke various opera-
tions on the widget. It has the following general form:
<EM>pathName</EM> <EM>option</EM> ?<EM>arg</EM> <EM>arg</EM> ...?
<EM>Option</EM> and the <EM>arg</EM>s determine the exact behavior of the com-
mand. The following commands are possible for scrolledtext
widgets:
</PRE>
<H2>WIDGET-SPECIFIC METHODS</H2><PRE>
<EM>pathName</EM> <STRONG>cget</STRONG> <EM>option</EM>
Returns the current value of the configuration option
given by <EM>option</EM>. <EM>Option</EM> may have any of the values
accepted by the <STRONG>scrolledhtml</STRONG> command.
<EM>pathName</EM> <STRONG>configure</STRONG> ?<EM>option</EM>? ?<EM>value</EM> <EM>option</EM> <EM>value</EM> ...?
Query or modify the configuration options of the
widget. If no <EM>option</EM> is specified, returns a list
describing all of the available options for <EM>pathName</EM>
(see <STRONG>Tk_ConfigureInfo</STRONG> for information on the format of
this list). If <EM>option</EM> is specified with no <EM>value</EM>, then
the command returns a list describing the one named
option (this list will be identical to the correspond-
ing sublist of the value returned if no <EM>option</EM> is
specified). If one or more <EM>option</EM> - <EM>value</EM> 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. <EM>Option</EM> may have any
of the values accepted by the <STRONG>feedback</STRONG> command.
<EM>pathName</EM> <STRONG>reset</STRONG>
Reset status to 0%
<EM>pathName</EM> <STRONG>step</STRONG> ?<EM>inc</EM>?
Increase the current number of steps completed by <EM>inc</EM>.
<EM>Inc</EM> defaults to 1.
</PRE>
<H2>EXAMPLE</H2><PRE>
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
}
</PRE>
<H2>ACKNOWLEDGEMENTS</H2><PRE>
Sam Shen
This code is based largely on his feedback.tcl code
from tk inspect. The original feedback code is copy-
right 1995 Lawrence Berkeley Laboratory.
</PRE>
<H2>AUTHOR</H2><PRE>
Kris Raney
</PRE>
<H2>KEYWORDS</H2><PRE>
feedback, widget
</PRE>
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