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169 lines
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169 lines
4.8 KiB
HTML
<TITLE>feedback - Create and manipulate a feedback widget to display feedback on</TITLE>
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<H1>feedback - Create and manipulate a feedback widget to display feedback on</H1>
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the current status of an ongoing operation to the user.
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</pre><H2>SYNOPSIS</H2>
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<B>feedback<I> <I>pathName </I>?<I>options</I>?
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</pre><H2>INHERITANCE</H2>
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itk::Widget <- Labeledwidget <- Feedback
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</pre><H2>STANDARD OPTIONS</H2>
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<P>
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<table cellpadding=5>
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<td valign=top>
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<B>background</B><br>
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<B>highlightThickness</B><br>
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</td>
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<td valign=top>
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<B>cursor</B><br>
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</td>
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<td valign=top>
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<B>foreground</B><br>
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</td>
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<td valign=top>
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<B>highlightColor</B><br>
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</td>
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</table>
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<P>
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See the <A HREF="http://www.sco.com/Technology/tcl/man/tk_man/options.n.html"> "options" </A> manual entry for details on the standard options.
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</pre><H2>INHERITED OPTIONS</H2>
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<P>
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<table cellpadding=5>
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<td valign=top>
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<B>labelBitmap</B><br>
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<B>labelPos</B><br>
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</td>
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<td valign=top>
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<B>labelFont</B><br>
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<B>labelText</B><br>
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</td>
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<td valign=top>
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<B>labelImage</B><br>
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<B>labelVariable</B><br>
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</td>
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<td valign=top>
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<B>labelMargin</B><br>
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</td>
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</table>
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<P>
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See the <A HREF="labeledwidget.n.html"> "labeledwidget" </A> class manual entry for details on the inherited options.
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</pre><H2>WIDGET-SPECIFIC OPTIONS</H2>
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<P>
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<pre>
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Name: <B>barcolor</B>
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Class: <B>BarColor</B>
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Command-Line Switch: <B>-barcolor</B>
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</pre>
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<UL>
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Specifies the color of the status bar, in any of the forms
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acceptable to <B>Tk_GetColor</B>. The default is DodgerBlue.
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</UL>
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<P>
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<pre>
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Name: <B>barheight</B>
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Class: <B>BarHeight</B>
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Command-Line Switch: <B>-barheight</B>
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</pre>
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<UL>
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Specifies the height of the status bar, in any of the forms
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acceptable to <B>Tk_GetPixels</B>. The default is 20.
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</UL>
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<P>
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<pre>
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Name: <B>troughColor</B>
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Class: <B>TroughColor</B>
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Command-Line Switch: <B>-troughcolor</B>
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</pre>
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<UL>
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Specifies the color of the frame in which the status bar sits,
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in any of the forms acceptable to <B>Tk_GetColor</B>. The default is white.
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</UL>
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<P>
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<pre>
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Name: <B>steps</B>
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Class: <B>Steps</B>
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Command-Line Switch: <B>-steps</B>
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</pre>
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<UL>
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Specifies the total number of steps for the status bar. The default is 10.
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</UL>
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<P>
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</pre><H2>DESCRIPTION</H2>
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<P>
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The <B>feedback</B> command creates a widget to display feedback on
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the current status of an ongoing operation to the user. Display is given as
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a percentage and as a thermometer type bar. Options exist for adding a label
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and controlling its position.
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</pre><H2>METHODS</H2>
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<P>
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The <B>feedback</B> command creates a new Tcl command whose
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name is <I>pathName</I>. This command may be used to invoke various
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operations on the widget. It has the following general form:
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<pre>
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<I>pathName option </I>?<I>arg arg ...</I>?
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</pre>
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<I>Option</I> and the <I>arg</I>s
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determine the exact behavior of the command. The following
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commands are possible for scrolledtext widgets:
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</pre><H2>WIDGET-SPECIFIC METHODS</H2>
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<DL>
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<DT> <I>pathName <B>cget</B> <I>option</I>
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</I></B>
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<DD> Returns the current value of the configuration option given
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by <I>option</I>.
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<I>Option</I> may have any of the values accepted by the <B>scrolledhtml</B>
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command.
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</DL>
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<DL>
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<DT> <I>pathName</I> <B>configure</B> ?<I>option</I>? ?<I>value option value ...</I>?
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</I></B>
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<DD> Query or modify the configuration options of the widget.
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If no <I>option</I> is specified, returns a list describing all of
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the available options for <I>pathName</I> (see <B>Tk_ConfigureInfo</B> for
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information on the format of this list). If <I>option</I> is specified
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with no <I>value</I>, then the command returns a list describing the
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one named option (this list will be identical to the corresponding
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sublist of the value returned if no <I>option</I> is specified). If
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one or more <I>option-value</I> pairs are specified, then the command
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modifies the given widget option(s) to have the given value(s); in
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this case the command returns an empty string.
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<I>Option</I> may have any of the values accepted by the <B>feedback</B>
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command.
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</DL>
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<DL>
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<DT> <I>pathName</I> <B>reset</B>
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</I></B>
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<DD> Reset the current number of steps completed to 0, and configures the
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percentage complete label text to 0%
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</DL>
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<DL>
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<DT> <I>pathName</I> <B>step</B> ?<I>inc</I>?
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</I></B>
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<DD> Increase the current number of steps completed by the amount specified
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by <I>inc</I>. <I>Inc</I> defaults to 1.
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</DL>
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</pre><H2>EXAMPLE</H2>
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<pre>
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feedback .fb -labeltext "Status" -steps 20
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pack .fb -padx 10 -pady 10 -fill both -expand yes
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for {set i 0} {$i < 20} {incr i} {
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.fb step
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after 500
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}
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</pre>
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</pre><H2>ACKNOWLEDGEMENTS</H2>
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Sam Shen
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<UL>
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This code is based largely on his feedback.tcl code from tk inspect. The
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original feedback code is copyright 1995 Lawrence Berkeley Laboratory.
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</UL>
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<P>
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</pre><H2>AUTHOR</H2>
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Kris Raney
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</pre><H2>KEYWORDS</H2>
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feedback, widget
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