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368 lines
10 KiB
HTML
<TITLE>scrolledtext - Create and manipulate a scrolled text widget</TITLE>
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<H1>scrolledtext - Create and manipulate a scrolled text widget</H1>
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</pre><H2>SYNOPSIS</H2>
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<B>scrolledtext<I> <I>pathName </I>?<I>options</I>?
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</pre><H2>INHERITANCE</H2>
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itk::Widget <- Labeledwidget <- Scrolledwidget <- Scrolledtext
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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>activeBackground</B><br>
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<B>exportSelection</B><br>
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<B>insertBackground</B><br>
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<B>insertWidth</B><br>
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<B>selectBackground</B><br>
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</td>
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<td valign=top>
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<B>background</B><br>
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<B>foreground</B><br>
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<B>insertBorderWidth</B><br>
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<B>padX</B><br>
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<B>selectBorderWidth</B><br>
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</td>
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<td valign=top>
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<B>borderWidth</B><br>
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<B>highlightColor</B><br>
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<B>insertOffTime</B><br>
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<B>padY</B><br>
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<B>selectForeground</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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<B>highlightThickness</B><br>
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<B>insertOnTime</B><br>
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<B>relief</B><br>
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<B>setGrid</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>ASSOCIATED 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>activeRelief</B><br>
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</td>
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<td valign=top>
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<B>elementBorderWidth</B><br>
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</td>
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<td valign=top>
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<B>jump</B><br>
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</td>
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<td valign=top>
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<B>troughColor</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/scrollbar.n.html"> "scrollbar" </A> widget manual entry for details on the above
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associated options.
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<P>
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<table cellpadding=5>
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<td valign=top>
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<B>spacing1</B><br>
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<B>tabs</B><br>
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</td>
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<td valign=top>
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<B>spacing2</B><br>
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<B>wrap</B><br>
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</td>
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<td valign=top>
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<B>spacing3</B><br>
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</td>
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<td valign=top>
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<B>state</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/text.n.html"> "text" </A> widget manual entry for details on the above
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associated 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>disabledForeground</B><br>
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<B>labelMargin</B><br>
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<B>state</B><br>
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</td>
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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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</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>height</B>
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Class: <B>Height</B>
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Command-Line Switch: <B>-height</B>
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</pre>
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<UL>
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Specifies the height of the scrolled text as an entire unit.
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The value may be specified in any of the forms acceptable to
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<B>Tk_GetPixels</B>. Any additional space needed to display the other
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components such as labels, margins, and scrollbars force the text
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to be compressed. A value of zero along with the same value for
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the width causes the value given for the visibleitems option
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to be applied which administers geometry constraints in a different
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manner. The default height is zero.
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</UL>
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<P>
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<pre>
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Name: <B>hscrollMode</B>
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Class: <B>ScrollMode</B>
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Command-Line Switch: <B>-hscrollmode</B>
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</pre>
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<UL>
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Specifies the the display mode to be used for the horizontal
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scrollbar: <B>static, dynamic,</B> or <B>none</B>. In static mode, the
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scroll bar is displayed at all times. Dynamic mode displays the
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scroll bar as required, and none disables the scroll bar display. The
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default is static.
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</UL>
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<P>
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<pre>
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Name: <B>sbWidth</B>
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Class: <B>Width</B>
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Command-Line Switch: <B>-sbwidth</B>
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</pre>
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<UL>
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Specifies the width of the scrollbar in any of the forms
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acceptable to <B>Tk_GetPixels</B>.
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</UL>
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<P>
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<pre>
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Name: <B>scrollMargin</B>
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Class: <B>Margin</B>
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Command-Line Switch: <B>-scrollmargin</B>
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</pre>
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<UL>
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Specifies the distance between the text area and scrollbar in any of the forms
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acceptable to <B>Tk_GetPixels</B>. The default is 3 pixels.
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</UL>
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<P>
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<pre>
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Name: <B>textBackground</B>
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Class: <B>Background</B>
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Command-Line Switch: <B>-textbackground</B>
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</pre>
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<UL>
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Specifies the background color for the text area in any of the forms
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acceptable to <B>Tk_GetColor</B>.
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</UL>
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<P>
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<pre>
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Name: <B>textFont</B>
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Class: <B>Font</B>
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Command-Line Switch: <B>-textfont</B>
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</pre>
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<UL>
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Specifies the font to be used in the scrolled text area.
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</UL>
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<P>
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<pre>
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Name: <B>visibleitems</B>
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Class: <B>VisibleItems</B>
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Command-Line Switch: <B>-visibleitems</B>
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</pre>
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<UL>
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Specifies the widthxheight in characters and lines for the text.
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This option is only administered if the width and height options
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are both set to zero, otherwise they take precedence. The default value
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is 80x24. With the visibleitems option engaged, geometry constraints
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are maintained only on the text. The size of the other components such as
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labels, margins, and scroll bars, are additive and independent,
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effecting the overall size of the scrolled text. In contrast,
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should the width and height options have non zero values, they
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are applied to the scrolled text as a whole. The text
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is compressed or expanded to maintain the geometry constraints.
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</UL>
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<P>
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<pre>
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Name: <B>vscrollMode</B>
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Class: <B>ScrollMode</B>
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Command-Line Switch: <B>-vscrollmode</B>
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</pre>
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<UL>
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Specifies the the display mode to be used for the vertical
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scrollbar: <B>static, dynamic,</B> or <B>none</B>. In static mode, the
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scroll bar is displayed at all times. Dynamic mode displays the
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scroll bar as required, and none disables the scroll bar display. The
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default is static.
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</UL>
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<P>
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<pre>
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Name: <B>width</B>
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Class: <B>Width</B>
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Command-Line Switch: <B>-width</B>
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</pre>
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<UL>
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Specifies the width of the scrolled text as an entire unit.
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The value may be specified in any of the forms acceptable to
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<B>Tk_GetPixels</B>. Any additional space needed to display the other
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components such as labels, margins, and scrollbars force the text
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to be compressed. A value of zero along with the same value for
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the height causes the value given for the visibleitems option
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to be applied which administers geometry constraints in a different
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manner. The default width is zero.
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</UL>
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<P>
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</pre><HR>
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</pre><H2>DESCRIPTION</H2>
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<P>
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The <B>scrolledtext</B> command creates
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a scrolled text widget with additional options to manage
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the scrollbars. This includes options to control the method
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in which the scrollbars are displayed, i.e. statically or dynamically.
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Options also exist for adding a label to the scrolled text area and
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controlling its position. Import/export of methods are provided for
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file I/O.
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</pre><H2>METHODS</H2>
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<P>
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The <B>scrolledtext</B> command creates a new Tcl command whose
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name is <I>pathName</I>. This
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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>ASSOCIATED METHODS</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>bbox</B><br>
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<B>dlineinfo</B><br>
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<B>mark</B><br>
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<B>tag</B><br>
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</td>
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<td valign=top>
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<B>compare</B><br>
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<B>get</B><br>
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<B>scan</B><br>
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<B>window</B><br>
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</td>
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<td valign=top>
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<B>debug</B><br>
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<B>index</B><br>
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<B>search</B><br>
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<B>xview</B><br>
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</td>
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<td valign=top>
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<B>delete</B><br>
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<B>insert</B><br>
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<B>see</B><br>
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<B>yview</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/text.n.html"> "text" </A> manual entry for details on the standard methods.
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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>scrolledtext</B>
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command.
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</DL>
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<DL>
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<DT> <I>pathName <B>childsite</B>
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</I></B>
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<DD> Returns the child site widget path name.
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</DL>
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<DL>
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<DT> <I>pathName <B>clear</B>
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</I></B>
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<DD> Clear the text area of all characters.
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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>scrolledtext</B>
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command.
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</DL>
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<DL>
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<DT> <I>pathName <B>import</B> <I>filename</I> ?<I>index</I>?
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</I></B>
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<DD> Load the text from a file into the text area at the <I>index</I>. The
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<I>filename</I> must exist.
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</DL>
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<DL>
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<DT> <I>pathName <B>export</B> <I>filename</I>
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</I></B>
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<DD> Write text to a file. If <I>filename</I> exists then contents are
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replaced with text widget contents.
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</DL>
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</pre><H2>COMPONENTS</H2>
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<P>
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<pre>
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Name: <B>text</B>
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Class: <B>Text</B>
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</pre>
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<UL>
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The text component is the text widget. See the "text" widget
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manual entry for details on the text component item.
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</UL>
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<P>
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<pre>
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Name: <B>horizsb</B>
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Class: <B>Scrollbar</B>
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</pre>
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<UL>
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The horizsb component is the horizontal scroll bar. See the "scrollbar"
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widget manual entry for details on the horizsb component item.
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</UL>
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<P>
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<pre>
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Name: <B>vertsb</B>
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Class: <B>Scrollbar</B>
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</pre>
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<UL>
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The vertsb component is the vertical scroll bar. See the "scrollbar" widget
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manual entry for details on the vertsb component item.
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</UL>
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</table>
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</pre><H2>EXAMPLE</H2>
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<pre>
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option add *textBackground white
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scrolledtext .st -scrollmode dynamic -labeltext "Password File"
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pack .st -padx 10 -pady 10 -fill both -expand yes
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.st import /etc/passwd
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</pre>
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</pre><H2>AUTHOR</H2>
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Mark L. Ulferts
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</pre><H2>KEYWORDS</H2>
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scrolledtext, text, widget
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