You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
344 lines
9.2 KiB
HTML
344 lines
9.2 KiB
HTML
<TITLE>scrolledcanvas - Create and manipulate scrolled canvas widgets</TITLE>
|
|
<H1>scrolledcanvas - Create and manipulate scrolled canvas widgets</H1>
|
|
|
|
</pre><H2>SYNOPSIS</H2>
|
|
<B>scrolledcanvas<I> <I>pathName </I>?<I>options</I>?
|
|
</pre><H2>INHERITANCE</H2>
|
|
itk::Widget <- Labeledwidget <- Scrolledwidget <- Scrolledcanvas
|
|
</pre><H2>STANDARD OPTIONS</H2>
|
|
<P>
|
|
<table cellpadding=5>
|
|
<td valign=top>
|
|
<B>activeBackground</B><br>
|
|
<B>exportSelection</B><br>
|
|
<B>highlightThickness</B><br>
|
|
<B>insertWidth</B><br>
|
|
<B>selectForeground</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>background</B><br>
|
|
<B>font</B><br>
|
|
<B>insertBorderWidth</B><br>
|
|
<B>relief</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>borderWidth</B><br>
|
|
<B>foreground</B><br>
|
|
<B>insertOffTime</B><br>
|
|
<B>selectBackground</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>cursor</B><br>
|
|
<B>highlightColor</B><br>
|
|
<B>insertOnTime</B><br>
|
|
<B>selectBorderWidth</B><br>
|
|
</td>
|
|
</table>
|
|
<P>
|
|
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.
|
|
</pre><H2>ASSOCIATED OPTIONS</H2>
|
|
<P>
|
|
<table cellpadding=5>
|
|
<td valign=top>
|
|
<B>closeEnough</B><br>
|
|
<B>yScrollIncrement</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>confine</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>scrollRegion</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>xScrollIncrement</B><br>
|
|
</td>
|
|
</table>
|
|
<P>
|
|
See the <A HREF="http://www.sco.com/Technology/tcl/man/tk_man/canvas.n.html"> "canvas" </A> widget manual entry for details on the above
|
|
associated options.
|
|
<P>
|
|
<table cellpadding=5>
|
|
<td valign=top>
|
|
<B>activeRelief</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>elementBorderWidth</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>jump</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>troughColor</B><br>
|
|
</td>
|
|
</table>
|
|
<P>
|
|
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
|
|
associated options.
|
|
</pre><H2>INHERITED OPTIONS</H2>
|
|
<P>
|
|
<table cellpadding=5>
|
|
<td valign=top>
|
|
<B>disabledForeground</B><br>
|
|
<B>labelMargin</B><br>
|
|
<B>state</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>labelBitmap</B><br>
|
|
<B>labelPos</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>labelFont</B><br>
|
|
<B>labelText</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>labelImage</B><br>
|
|
<B>labelVariable</B><br>
|
|
</td>
|
|
</table>
|
|
<P>
|
|
See the <A HREF="labeledwidget.n.html"> "labeledwidget" </A> class manual entry for details on the inherited options.
|
|
</pre><H2>WIDGET-SPECIFIC OPTIONS</H2>
|
|
<P>
|
|
<pre>
|
|
Name: <B>autoMargin</B>
|
|
Class: <B>AutoMargin</B>
|
|
Command-Line Switch: <B>-automargin</B>
|
|
</pre>
|
|
<UL>
|
|
Specifies the autoresize extra margin to reserve. This option is only
|
|
effective with autoresize turned on. The default is 10.
|
|
</UL>
|
|
<P>
|
|
<pre>
|
|
Name: <B>autoResize</B>
|
|
Class: <B>AutoResize</B>
|
|
Command-Line Switch: <B>-autoresize</B>
|
|
</pre>
|
|
<UL>
|
|
Automatically adjusts the scrolled region to be the bounding
|
|
box covering all the items in the canvas following the execution
|
|
of any method which creates or destroys items. Thus, as new
|
|
items are added, the scrollbars adjust accordingly.
|
|
</UL>
|
|
<P>
|
|
<pre>
|
|
Name: <B>height</B>
|
|
Class: <B>Height</B>
|
|
Command-Line Switch: <B>-height</B>
|
|
</pre>
|
|
<UL>
|
|
Specifies the height of the scrolled canvas widget in any of the forms
|
|
acceptable to <B>Tk_GetPixels</B>. The default height is 30 pixels.
|
|
</UL>
|
|
<P>
|
|
<pre>
|
|
Name: <B>hscrollMode</B>
|
|
Class: <B>ScrollMode</B>
|
|
Command-Line Switch: <B>-hscrollmode</B>
|
|
</pre>
|
|
<UL>
|
|
Specifies the the display mode to be used for the horizontal
|
|
scrollbar: <B>static, dynamic,</B> or <B>none</B>. In static mode, the
|
|
scroll bar is displayed at all times. Dynamic mode displays the
|
|
scroll bar as required, and none disables the scroll bar display. The
|
|
default is static.
|
|
</UL>
|
|
<P>
|
|
<pre>
|
|
Name: <B>sbWidth</B>
|
|
Class: <B>Width</B>
|
|
Command-Line Switch: <B>-sbwidth</B>
|
|
</pre>
|
|
<UL>
|
|
Specifies the width of the scrollbar in any of the forms acceptable
|
|
to <B>Tk_GetPixels</B>. The default width is 15 pixels..
|
|
</UL>
|
|
<P>
|
|
<pre>
|
|
Name: <B>scrollMargin</B>
|
|
Class: <B>ScrollMargin</B>
|
|
Command-Line Switch: <B>-scrollmargin</B>
|
|
</pre>
|
|
<UL>
|
|
Specifies the distance between the canvas and scrollbar in any of the
|
|
forms acceptable to <B>Tk_GetPixels</B>. The default is 3 pixels.
|
|
</UL>
|
|
<P>
|
|
<pre>
|
|
Name: <B>textBackground</B>
|
|
Class: <B>Background</B>
|
|
Command-Line Switch <B>-textbackground</B>
|
|
</pre>
|
|
<UL>
|
|
Specifies the background color for the canvas. This allows the background
|
|
within the canvas to be different from the normal background color.
|
|
</UL>
|
|
<P>
|
|
<pre>
|
|
Name: <B>vscrollMode</B>
|
|
Class: <B>ScrollMode</B>
|
|
Command-Line Switch: <B>-vscrollmode</B>
|
|
</pre>
|
|
<UL>
|
|
Specifies the the display mode to be used for the vertical
|
|
scrollbar: <B>static, dynamic,</B> or <B>none</B>. In static mode, the
|
|
scroll bar is displayed at all times. Dynamic mode displays the
|
|
scroll bar as required, and none disables the scroll bar display. The
|
|
default is static.
|
|
</UL>
|
|
<P>
|
|
<pre>
|
|
Name: <B>width</B>
|
|
Class: <B>Width</B>
|
|
Command-Line Switch: <B>-width</B>
|
|
</pre>
|
|
<UL>
|
|
Specifies the width of the scrolled canvas widget in any of the forms
|
|
acceptable to <B>Tk_GetPixels</B>. The default height is 30 pixels.
|
|
</UL>
|
|
</pre><HR>
|
|
|
|
</pre><H2>DESCRIPTION</H2>
|
|
<P>
|
|
The <B>scrolledcanvas</B> command creates
|
|
a scrolled canvas with additional options to manage
|
|
horizontal and vertical scrollbars. This includes options to control
|
|
which scrollbars are displayed and the method, i.e. statically or
|
|
dynamically.
|
|
|
|
</pre><H2>METHODS</H2>
|
|
<P>
|
|
The <B>scrolledcanvas</B> command creates a new Tcl command whose
|
|
name is <I>pathName</I>. This
|
|
command may be used to invoke various
|
|
operations on the widget. It has the following general form:
|
|
<pre>
|
|
<I>pathName option </I>?<I>arg arg ...</I>?
|
|
</pre>
|
|
<I>Option</I> and the <I>arg</I>s
|
|
determine the exact behavior of the command. The following
|
|
commands are possible for scrolledcanvas widgets:
|
|
</pre><H2>ASSOCIATED METHODS</H2>
|
|
<P>
|
|
<table cellpadding=5>
|
|
<td valign=top>
|
|
<B>addtag</B><br>
|
|
<B>canvasy<B><br>
|
|
<B>delete</B><br>
|
|
<B>gettags</B><br>
|
|
<B>itemconfigure</B><br>
|
|
<B>raise</B><br>
|
|
<B>type</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>bbox</B><br>
|
|
<B>coords</B><br>
|
|
<B>dtag</B><br>
|
|
<B>icursor</B><br>
|
|
<B>lower</B><br>
|
|
<B>scale</B><br>
|
|
<B>xview</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>bind</B><br>
|
|
<B>create</B><br>
|
|
<B>find</B><br>
|
|
<B>index</B><br>
|
|
<B>move</B><br>
|
|
<B>scan</B><br>
|
|
<B>yview</B><br>
|
|
</td>
|
|
<td valign=top>
|
|
<B>canvasx</B><br>
|
|
<B>dchars</B><br>
|
|
<B>focus</B><br>
|
|
<B>insert</B><br>
|
|
<B>postscript</B><br>
|
|
<B>select</B><br>
|
|
</td>
|
|
</table>
|
|
<P>
|
|
See the <A HREF="http://www.sco.com/Technology/tcl/man/tk_man/canvas.n.html"> "canvas" </A> manual entry for details on the associated methods.
|
|
|
|
</pre><H2>WIDGET-SPECIFIC METHODS</H2>
|
|
<DL>
|
|
<DT> <I>pathName <B>cget</B> <I>option</I>
|
|
</I></B>
|
|
<DD> Returns the current value of the configuration option given
|
|
by <I>option</I>.
|
|
<I>Option</I> may have any of the values accepted by the <B>scrolledcanvas</B>
|
|
command.
|
|
</DL>
|
|
<DL>
|
|
<DT> <I>pathName <B>childsite</B>
|
|
</I></B>
|
|
<DD> Returns the child site widget path name.
|
|
</DL>
|
|
<DL>
|
|
<DT> <I>pathName</I> <B>configure</B> ?<I>option</I>? ?<I>value option value ...</I>?
|
|
</I></B>
|
|
<DD> Query or modify the configuration options of the widget.
|
|
If no <I>option</I> is specified, returns a list describing all of
|
|
the available options for <I>pathName</I> (see <B>Tk_ConfigureInfo</B> for
|
|
information on the format of this list). If <I>option</I> is specified
|
|
with no <I>value</I>, 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 <I>option</I> is specified). If
|
|
one or more <I>option-value</I> 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.
|
|
<I>Option</I> may have any of the values accepted by the <B>scrolledcanvas</B>
|
|
command.
|
|
</DL>
|
|
<DL>
|
|
<DT> <I>pathName <B>justify <I>direction</I>
|
|
</I></B>
|
|
<DD> Justifies the canvas contents via the scroll bars in one of four directions:
|
|
<B>left</B>, <B>right</B>, <B>top</B>, or <B>bottom</B>.
|
|
|
|
</DL>
|
|
</pre><H2>COMPONENTS</H2>
|
|
<P>
|
|
<pre>
|
|
Name: <B>canvas</B>
|
|
Class: <B>Canvas</B>
|
|
</pre>
|
|
<UL>
|
|
The canvas component is the canvas widget. See the "canvas" widget
|
|
manual entry for details on the canvas component item.
|
|
</UL>
|
|
<P>
|
|
<pre>
|
|
Name: <B>horizsb</B>
|
|
Class: <B>Scrollbar</B>
|
|
</pre>
|
|
<UL>
|
|
The horizsb component is the horizontal scroll bar. See the "ScrollBar"
|
|
widget manual entry for details on the horizsb component item.
|
|
</UL>
|
|
<P>
|
|
<pre>
|
|
Name: <B>vertsb</B>
|
|
Class: <B>Scrollbar</B>
|
|
</pre>
|
|
<UL>
|
|
The vertsb component is the vertical scroll bar. See the "ScrollBar" widget
|
|
manual entry for details on the vertsb component item.
|
|
</UL>
|
|
</table>
|
|
|
|
</pre><H2>EXAMPLE</H2>
|
|
<pre>
|
|
scrolledcanvas .sc
|
|
|
|
.sc create rectangle 100 100 400 400 -fill red
|
|
.sc create rectangle 300 300 600 600 -fill green
|
|
.sc create rectangle 200 200 500 500 -fill blue
|
|
|
|
pack .sc -padx 10 -pady 10 -fill both -expand yes
|
|
</pre>
|
|
</pre><H2>AUTHOR</H2>
|
|
Mark L. Ulferts
|
|
</pre><H2>KEYWORDS</H2>
|
|
scrolledcanvas, canvas, widget
|