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<TITLE>tabset - create and manipulate tabs as as set</TITLE>
<H1>tabset - create and manipulate tabs as as set</H1>
</pre><H2>SYNOPSIS</H2>
<B>tabset</B> <I>pathName</I> ?<I>options</I>?
</pre><H2>INHERITANCE</H2>
itk::Widget &lt;- tabset
</pre><H2>STANDARD OPTIONS</H2>
<P>
<table cellpadding=5>
<td valign=top>
<B>background</B><br>
<B>foreground</B><br>
<B>width</B><br>
</td>
<td valign=top>
<B>font</B><br>
<B>selectForeground</B><br>
</td>
<td valign=top>
<B>selectBackground</B><br>
<B>disabledForeground</B><br>
</td>
<td valign=top>
<B>cursor</B><br>
<B>height</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>WIDGET-SPECIFIC OPTIONS</H2>
<P>
<pre>
Name: <B>angle</B>
Class: <B>Angle</B>
Command-Line Switch: <B>-angle</B>
</pre>
<UL>
Specifes the angle of slope from the inner edge to the outer edge of the
tab. An angle of 0 specifies square tabs. Valid ranges are 0 to 45 degrees
inclusive. Default is 15 degrees. If tabPos is e or w, this option is ignored.
</UL>
<P>
<pre>
Name: <B>backdrop</B>
Class: <B>Backdrop</B>
Command-Line Switch: <B>-backdrop</B>
</pre>
<UL>
Specifies a background color to use when filling in the area behind the tabs.
</UL>
<P>
<pre>
Name: <B>bevelAmount</B>
Class: <B>BevelAmount</B>
Command-Line Switch: <B>-bevelamount</B>
</pre>
<UL>
Specifes the size of tab corners. A value of 0 with angle set to 0 results
in square tabs. A <B>bevelAmount</B> of 4, means that the tab will be
drawn with angled corners that cut in 4 pixels from the edge of the
tab. The default is 0.
</UL>
<P>
<pre>
Name: <B>command</B>
Class: <B>Command</B>
Command-Line Switch: <B>-command</B>
Specifes the prefix of a Tcl command to invoke to change the view in the
widget associated with the tabset. When a user selects a tab, a Tcl command
is invoked. The actual command consists of this option followed by a space
and a number. The number is the numerical index of the tab that has been
selected.
<P>
<table>
Name: <B>equalTabs</B>
Class: <B>EqualTabs</B>
Command-Line Switch: <B>-equaltabs</B>
</pre>
<UL>
Specifies whether to force tabs to be equal sized or not. A value
of <B>true</B> means constrain tabs to be equal sized. A value
of <B>false</B> allows each tab to size based on the text label size. The
value may have any of the forms accepted by the <B>Tcl_GetBoolean</B>, such
as <B>true</B>, <B>false</B>, <B>0</B>, <B>1</B>, <B>yes</B>, or <B>no</B>.
</UL>
<UL>
For horizontally positioned tabs (<B>tabPos</B> is either <B>s</B>
or <B>n</B>), <B>true</B> forces all tabs to be equal width (the width being
equal to the longest label plus any padX specified). Horizontal tabs are
always equal in height.
</UL>
<UL>
For vertically positioned tabs (<B>tabPos</B> is either <B>w</B> or <B>e</B>),
<B>true</B> forces all tabs to be equal height (the height being equal to
the height of the label with the largest font). Vertically oriented tabs are
always equal in width.
</UL>
<P>
<pre>
Name: <B>gap</B>
Class: <B>Gap</B>
Command-Line Switch: <B>-gap</B>
</pre>
<UL>
Specifies the amount of pixel space to place between each tab. Value may
be any pixel offset value. In addition, a special keyword <B>overlap</B>
can be used as the value to achieve a standard overlap of tabs. This value
may have any of the forms acceptable to <B>Tk_GetPixels</B>.
</UL>
<P>
<pre>
Name: <B>margin</B>
Class: <B>Margin</B>
Command-Line Switch: <B>-margin</B>
</pre>
<UL>
Specifies the amount of space to place between the outside edge of the
tabset and the outside edge of its tabs. If <B>tabPos</B> is <B>s</B>, this
is the amount of space between the bottom edge of the tabset and the
bottom edge of the set of tabs. If <B>tabPos</B> is <B>n</B>, this is the
amount of space between the top edge of the tabset and the top edge of the
set of tabs. If <B>tabPos</B> is <B>e</B>, this is the amount of space between
the right edge of the tabset and the right edge of the set of tabs.
If <B>tabPos</B> is <B>w</B>, this is the amount of space between the left
edge of the tabset and the left edge of the set of tabs. This value may
have any of the forms acceptable to <B>Tk_GetPixels</B>.
</UL>
<P>
<pre>
Name: <B>padX</B>
Class: <B>PadX</B>
Command-Line Switch: <B>-padx</B>
</pre>
<UL>
Specifies a non-negative value indicating how much extra space to request for
a tab around its label in the X-direction. When computing how large a
window it needs, the tab will add this amount to the width it would normally
need The tab will end up with extra internal space to the left and right of
its text label. This value may have any of the forms acceptable
to <B>Tk_GetPixels</B>.
</UL>
<P>
<pre>
Name: <B>padY</B>
Class: <B>PadY</B>
Command-Line Switch: <B>-pady</B>
</pre>
<UL>
Specifies a non-negative value indicating how much extra space to request
for a tab around its label in the Y-direction. When computing how large a
window it needs, the tab will add this amount to the height it would
normally need The tab will end up with extra internal space to the top and
bottom of its text label. This value may have any of the forms acceptable
to <B>Tk_GetPixels</B>.
</UL>
<P>
<pre>
Name: <B>raiseSelect</B>
Class: <B>RaiseSelect</B>
Command-Line Switch: <B>-raiseselect</B>
</pre>
<UL>
Specifes whether to slightly raise the selected tab from the rest of the
tabs. The selected tab is drawn 2 pixels closer to the outside edge of the
tabset than the unselected tabs. A value of true says to raise selected
tabs, a value of false turns this off. The default is false. The value may
have any of the forms accepted by the <B>Tcl_GetBoolean</B>, such
as <B>true</B>, <B>false</B>, <B>0</B>, <B>1</B>, <B>yes</B>, or <B>no</B>.
</UL>
<P>
<pre>
Name: <B>start</B>
Class: <B>Start</B>
Command-Line Switch: <B>-start</B>
</pre>
<UL>
Specifies the amount of space to place between the left or top edge of the
tabset and the starting edge of its tabs. For horizontally positioned tabs,
this is the amount of space between the left edge of the tabset and the left
edge of the first tab. For vertically positioned tabs, this is the amount
of space between the top of the tabset and the top of the first tab. This
value may change if the user performs a MButton-2 scroll on the tabs. This
value may have any of the forms acceptable to <B>Tk_GetPixels</B>.
</UL>
<P>
<pre>
Name: <B>state</B>
Class: <B>State</B>
Command-Line Switch: <B>-state</B>
</pre>
<UL>
Sets the active state of the tabset. Specifying <B>normal</B> allows all
tabs to be selectable. Specifying <B>disabled</B> disables the tabset
causing all tabs to be drawn in the disabledForeground color.
</UL>
<P>
<pre>
Name: <B>tabBorders</B>
Class: <B>TabBorders</B>
Command-Line Switch: <B>-tabborders</B>
</pre>
<UL>
Specifies whether to draw the borders of tabs that are not selected.
Specifying true (the default) draws these borders, specifying false
draws only the border around the selected tab. The value may have any
of the forms accepted by the <B>Tcl_GetBoolean</B>, such
as <B>true</B>, <B>false,</B> <B>0</B>, <B>1</B>, <B>yes</B>, or <B>no</B>.
</UL>
<P>
<pre>
Name: <B>tabPos</B>
Class: <B>TabPos</B>
Command-Line Switch: <B>-tabpos</B>
</pre>
<UL>
Specifies the location of the set of tabs in relation to another widget. Must
be <B>n</B>, <B>s</B>, <B>e</B>, or <B>w</B>. Defaults to <B>s</B>. North tabs
open downward, South tabs open upward. West tabs open to the right, east
tabs open to the left.
</UL>
</pre><HR>
</pre><H2>DESCRIPTION</H2>
<P>
The <B>tabset</B> command creates a new window (given by the pathName
argument) and makes it into a <B>tabset</B> widget. Additional <I>options</I>,
described above may be specified on the command line or in the option
database to configure aspects of the tabset such as its colors, font, and
text. The <B>tabset</B> command returns its <I>pathName</I> argument. At the
time this command is invoked, there must not exist a window
named <I>pathName</I>, but pathName's parent must exist.
<P>
A <B>tabset</B> is a widget that contains a set of Tab buttons. It displays
these tabs in a row or column depending on it tabpos. When a tab is
clicked on, it becomes the only tab in the tab set that is selected. All
other tabs are deselected. The Tcl command prefix associated with this
tab (through the command tab configure option) is invoked with the tab
index number appended to its argument list. This allows the tabset to
control another widget such as a Notebook.
</pre><H2>TABS</H2>
Tabs are drawn to appear attached to another widget. The tabset draws an
edge boundary along one of its edges. This edge is known as the attachment
edge. This edge location is dependent on the value of <B>tabPos</B>. For
example, if <B>tabPos</B> is <B>s</B>, the attachment edge wil be on the
top side of the tabset (in order to attach to the bottom or south side of
its attached widget). The selected tab is draw with a 3d relief to appear
above the other tabs. This selected tab "opens" toward attachment edge.
<P>
Tabs can be controlled in their location along the edges, the angle that
tab sides are drawn with, gap between tabs, starting margin of tabs,
internal padding around labels in a tab, the font, and its text or bitmap.
</pre><H2>WIDGET-SPECIFIC METHODS</H2>
<P>
The <B>tabset</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.
<P>
Many of the widget commands for a tabset take as one argument an indicator
of which tab of the tabset to operate on. These indicators are called indexes
and may be specified in any of the following forms:
<DL>
<DT> <I>number</I>
</I></B>
<DD> Specifies the tab numerically, where 0 corresponds to the first tab in
the tab set, 1 to the second, and so on.
</DL>
<DL>
<DT> <B>select</B>
</I></B>
<DD> Specifies the currently selected tab's index. If no tab is currently
selected, the value -1 is returned.
</DL>
<DL>
<DT> <B>end</B>
</I></B>
<DD> Specifes the last tab in the tabset's index. If the tabset is empty this
will return -1.
</DL>
<DL>
<DT> <I>pattern</I>
</I></B>
<DD> If the index doesn't satisfy any of the above forms, then this form is
used. Pattern is pattern-matched against the label of each tab in the
tabset, in order from the first to the last tab, until a matching entry is
found. The rules of Tcl_StringMatch are used.
</DL>
<P>
'.............................................................................
The following commands are possible for tabset widgets:
<UL>
<DL>
<DT> <I>pathName</I> <B>add</B> ?<I>option</I> <I>value</I> <I>option</I> <I>value</I> ...?
</I></B>
<DD> Add a new tab at the end of the tabset. Returns the child
site <I>pathName</I>. If additional arguments are present, they specify
any of the following options:
</DL>
<UL>
<DL>
<DT> <B>-angle</B> <I>value</I>
</I></B>
<DD> Specifes the angle of slope from the inner edge to the outer edge of
the tab. An angle of 0 specifies square tabs. Valid ranges are 0 to
45 degrees inclusive. Default is 15 degrees. If this option is specified as
an empty string (the default), then the angle option for the overall tabset
is used.
</DL>
<DL>
<DT> <B>-background</B> <I>value</I>
</I></B>
<DD> Specifies a background color to use for displaying tabs when they are in
their normal state (unselected). If this option is specified as an empty
string (the default), then the background option for the overall tabset is
used.
</DL>
<DL>
<DT> <B>-bevelamount</B> <I>value</I>
</I></B>
<DD> Specifes the size of tab corners. A value of 0 with angle set to 0 results
in square tabs. A bevelAmount of 4, means that the tab will be drawn with
angled corners that cut in 4 pixels from the edge of the tab. The default is
0. This is generally only set at the tabset configuration level. Tabs
normally will want to share the same bevelAmount.
</DL>
<DL>
<DT> <B>-bitmap</B> <I>value</I>
</I></B>
<DD> If label is a non-empty string, specifies a bitmap to display in the
tab. Bitmap may be of any of the forms accepted by Tk_GetBitmap.
</DL>
<DL>
<DT> <B>-disabledforeground</B> <I>value</I>
</I></B>
<DD> Specifies a foreground color to use for displaying tab labels when tabs are
in their disable state. If this option is specified as an empty
string (the default), then the disabledforeground option for the overall
tabset is used.
</DL>
<DL>
<DT> <B>-font</B> <I>value</I>
</I></B>
<DD> Specifies the font to use when drawing the label on a tab. If this option
is specified as an empty string then the font option for the overall
tabset is used.
</DL>
<DL>
<DT> <B>-foreground</B> <I>value</I>
</I></B>
<DD> Specifies a foreground color to use for displaying tab labels when tabs
are in their normal unselected state. If this option is specified as an
empty string (the default), then the foreground option for the overall
tabset is used.
</DL>
<DL>
<DT> <B>-image</B> <I>value</I>
</I></B>
<DD> If label is a non-empty string, specifies an image to display in the
tab. Image must have been created with the image create command. Typically,
if the image option is specified then it overrides other options that
specify a bitmap or textual value to display in the widget; the image
option may be reset to an empty string to re-enable a bitmap or text display.
</DL>
<DL>
<DT> <B>-label</B> <I>value</I>
</I></B>
<DD> Specifies a text string to be placed in the tabs label. If this value is
set, the bitmap option is overridden and this option is used instead. This
label serves as an additional identifier used to reference the tab. This
label may be used for the index value in widget commands.
</DL>
<DL>
<DT> <B>-selectbackground</B> <I>value</I>
</I></B>
<DD> Specifies a background color to use for displaying the selected tab. If
this option is specified as an empty string (the default), then the
selectBackground option for the overall tabset is used.
</DL>
<DL>
<DT> <B>-selectforeground</B> <I>value</I>
</I></B>
<DD> Specifies a foreground color to use for displaying the selected tab. If
this option is specified as an empty string (the default), then the
selectForeground option for the overall tabset is used.
</DL>
<DL>
<DT> <B>-padx</B> <I>value</I>
</I></B>
<DD> Specifies a non-negative value indicating how much extra space to request
for a tab around its label in the X-direction. When computing how large
a window it needs, the tab will add this amount to the width it would
normally need The tab will end up with extra internal space to the left
and right of its text label. This value may have any of the forms acceptable
to Tk_GetPixels. If this option is specified as an empty string (the
default), then the padX option for the overall tabset is used
</DL>
<DL>
<DT> <B>-pady</B> <I>value</I>
</I></B>
<DD> Specifies a non-negative value indicating how much extra space to request
for a tab around its label in the Y-direction. When computing how large
a window it needs, the tab will add this amount to the height it would
normally need The tab will end up with extra internal space to the top
and bottom of its text label. This value may have any of the forms
acceptable to Tk_GetPixels. If this option is specified as an empty
string (the default), then the padY option for the overall tabset is used
</DL>
<DL>
<DT> <B>-state</B> <I>value</I>
</I></B>
<DD> Sets the state of the tab. Specifying normal allows this tab to be
selectable. Specifying disabled disables the this tab causing its tab label
to be drawn in the disabledForeground color. The tab will not respond to
events until the state is set back to normal.
</DL>
</UL>
<DL>
<DT> <I>pathName</I> <B>configure</B> ?<I>option</I>? ?<I>value</I> <I>option</I> <I>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 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. <I>Option</I> may have any
of the values accepted by the tabset command.
</DL>
<DL>
<DT> <I>pathName</I> <B>delete</B> <I>index1</I> ?<I>index2</I>?
</I></B>
<DD> Delete all of the tabs between <I>index1</I> and <I>index2</I> inclusive.
If <I>index2</I> is omitted then it defaults to <I>index1</I>. Returns an
empty string.
</DL>
<DL>
<DT> <I>pathName</I> <B>index</B> <I>index</I>
</I></B>
<DD> Returns the numerical index corresponding to <I>index</I>.
</DL>
<DL>
<DT> <I>pathName</I> <B>insert</B> <I>index</I> ?<I>option</I> <I>value</I> <I>option</I> <I>value</I> ...?
</I></B>
<DD> Insert a new tab in the tabset before the tab specified by <I>index</I>. The
additional arguments are the same as for the <B>add</B> command. Returns
the tab's <I>pathName</I>.
</DL>
<DL>
<DT> <I>pathName</I> <B>next</B>
</I></B>
<DD> Advances the selected tab to the next tab (order is determined by insertion
order). If the currently selected tab is the last tab in the tabset, the
selection wraps around to the first tab. It behaves as if the user
selected the next tab.
</DL>
<DL>
<DT> <I>pathName</I> <B>tabconfigure</B> <I>index</I> ?<I>option</I>? ?<I>value</I>?
</I></B>
<DD> This command is similar to the <B>configure</B> command, except that it
applies to the options for an individual tab, whereas configure applies to
the options for the tabset as a whole. Options may have any of the values
accepted by the <B>add</B> widget command. If options are specified, options
are modified as indicated in the command and the command returns an empty
string. If no options are specified, returns a list describing the current
options for tab index (see <B>Tk_ConfigureInfo</B> for information on
the format of this list).
</DL>
<DL>
<DT> <I>pathName</I> <B>prev</B>
</I></B>
<DD> Moves the selected tab to the previous tab (order is determined by insertion
order). If the currently selected tab is the first tab in the tabset, the
selection wraps around to the last tab in the tabset. It behaves as if
the user selected the previous tab.
</DL>
<DL>
<DT> <I>pathName</I> <B>select</B> <I>index</I>
</I></B>
<DD> Selects the tab specified by <I>index</I> as the currently selected tab. It
behaves as if the user selected the new tab.
</DL>
</pre><H2>EXAMPLE </H2>
<P>
Following is an example that creates a tabset with two tabs and a list box
that the tabset controls. In addition selecting an item from the list
also selects the corresponding tab.
<P>
<table cellpadding=5>
<td valign=top>
<UL><br>
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</table>
</pre><H2>AUTHOR</H2>
Bill W. Scott
</pre><H2>KEYWORDS</H2>
tab tabset notebook tabnotebook