iwidgets::tabset(1) [incr Widgets] iwidgets::tabset(1)______________________________________________________________________________NAME
iwidgets::tabset - create and manipulate tabs as as set
SYNOPSIS
iwidgets::tabset pathName ?options?
INHERITANCE
itk::Widget <- iwidgets::Tabset
STANDARD OPTIONS
background font selectBackground cursor
foreground selectForeground disabledForeground height
width
See the "options" manual entry for details on the standard options.
WIDGET-SPECIFIC OPTIONS
Name: angle
Class: Angle
Command-Line Switch: -angle
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.
Name: backdrop
Class: Backdrop
Command-Line Switch: -backdrop
Specifies a background color to use when filling in the area
behind the tabs.
Name: bevelAmount
Class: BevelAmount
Command-Line Switch: -bevelamount
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.
Name: command
Class: Command
Command-Line Switch: -command
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.
Name: equalTabs
Class: EqualTabs
Command-Line Switch: -equaltabs
Specifies whether to force tabs to be equal sized or not. A
value of true means constrain tabs to be equal sized. A value of
false allows each tab to size based on the text label size. The
value may have any of the forms accepted by the Tcl_GetBoolean,
such as true, false, 0, 1, yes, or no.
For horizontally positioned tabs (tabPos is either s or n), true
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.
For vertically positioned tabs (tabPos is either w or e), true
forces all tabs to be equal height (the height being equal to
the height of the label with the largest font). Vertically ori‐
ented tabs are always equal in width.
Name: gap
Class: Gap
Command-Line Switch: -gap
Specifies the amount of pixel space to place between each tab.
Value may be any pixel offset value. In addition, a special key‐
word overlap can be used as the value to achieve a standard
overlap of tabs. This value may have any of the forms acceptable
to Tk_GetPixels.
Name: margin
Class: Margin
Command-Line Switch: -margin
Specifies the amount of space to place between the outside edge
of the tabset and the outside edge of its tabs. If tabPos is s,
this is the amount of space between the bottom edge of the tab‐
set and the bottom edge of the set of tabs. If tabPos is n, this
is the amount of space between the top edge of the tabset and
the top edge of the set of tabs. If tabPos is e, this is the
amount of space between the right edge of the tabset and the
right edge of the set of tabs. If tabPos is w, 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 Tk_GetPixels.
Name: padX
Class: PadX
Command-Line Switch: -padx
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.
Name: padY
Class: PadY
Command-Line Switch: -pady
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.
Name: raiseSelect
Class: RaiseSelect
Command-Line Switch: -raiseselect
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 Tcl_GetBoolean, such as true, false, 0, 1, yes,
or no.
Name: start
Class: Start
Command-Line Switch: -start
Specifies the amount of space to place between the left or top
edge of the tabset and the starting edge of its tabs. For hori‐
zontally 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 Tk_Get‐
Pixels.
Name: state
Class: State
Command-Line Switch: -state
Sets the active state of the tabset. Specifying normal allows
all tabs to be selectable. Specifying disabled disables the tab‐
set causing all tabs to be drawn in the disabledForeground
color.
Name: tabBorders
Class: TabBorders
Command-Line Switch: -tabborders
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 Tcl_Get‐
Boolean, such as true, false, 0, 1, yes, or no.
Name: tabPos
Class: TabPos
Command-Line Switch: -tabpos
Specifies the location of the set of tabs in relation to another
widget. Must be n, s, e, or w. Defaults to s. North tabs open
downward, South tabs open upward. West tabs open to the right,
east tabs open to the left.
______________________________________________________________________________DESCRIPTION
The iwidgets::tabset command creates a new window (given by the path‐
Name argument) and makes it into a tabset widget. Additional options,
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 iwidgets::tabset command returns its pathName argument.
At the time this command is invoked, there must not exist a window
named pathName, but pathName's parent must exist.
A tabset 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.
TABS
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 tab‐
Pos. For example, if tabPos is s, 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 attach‐
ment edge.
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.
WIDGET-SPECIFIC METHODS
The iwidgets::tabset command creates a new Tcl command whose name is
pathName. This command may be used to invoke various operations on the
widget. It has the following general form: pathName option ?arg arg
...? option and the args determine the exact behavior of the command.
Many of the widget commands for a tabset take as one argument an indi‐
cator of which tab of the tabset to operate on. These indicators are
called indexes and may be specified in any of the following forms:
number Specifies the tab numerically, where 0 corresponds to the first
tab in the tab set, 1 to the second, and so on.
select Specifies the currently selected tab's index. If no tab is cur‐
rently selected, the value -1 is returned.
end Specifes the last tab in the tabset's index. If the tabset is
empty this will return -1.
pattern
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.
The following commands are possible for tabset widgets:
pathName add ?option value option value ...?
Add a new tab at the end of the tabset. Returns the child
site pathName. If additional arguments are present, they
specify any of the following options:
-angle value
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.
-background value
Specifies a background color to use for displaying
tabs when they are in their normal state (unse‐
lected). If this option is specified as an empty
string (the default), then the background option
for the overall tabset is used.
-bevelamount value
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 gener‐
ally only set at the tabset configuration level.
Tabs normally will want to share the same bevelAm‐
ount.
-bitmap value
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.
-disabledforeground value
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.
-font value
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.
-foreground value
Specifies a foreground color to use for displaying
tab labels when tabs are in their normal unse‐
lected state. If this option is specified as an
empty string (the default), then the foreground
option for the overall tabset is used.
-image value
If label is a non-empty string, specifies an image
to display in the tab. Image must have been cre‐
ated 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.
-label value
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.
-selectbackground value
Specifies a background color to use for displaying
the selected tab. If this option is specified as
an empty string (the default), then the select‐
Background option for the overall tabset is used.
-selectforeground value
Specifies a foreground color to use for displaying
the selected tab. If this option is specified as
an empty string (the default), then the select‐
Foreground option for the overall tabset is used.
-padx value
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
-pady value
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
-state value
Sets the state of the tab. Specifying normal
allows this tab to be selectable. Specifying dis‐
abled 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.
pathName configure ?option? ?value option value ...?
Query or modify the configuration options of the widget.
If no option is specified, returns a list describing all
of the available options for pathName (see Tk_Configure‐
Info 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 modi‐
fies the given widget option(s) to have the given
value(s); in this case the command returns an empty
string. Option may have any of the values accepted by the
iwidgets::tabset command.
pathName delete index1 ?index2?
Delete all of the tabs between index1 and index2 inclu‐
sive. If index2 is omitted then it defaults to index1.
Returns an empty string.
pathName index index
Returns the numerical index corresponding to index.
pathName insert index ?option value option value ...?
Insert a new tab in the tabset before the tab specified
by index. The additional arguments are the same as for
the add command. Returns the tab's pathName.
pathName next
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.
pathName tabconfigure index ?option? ?value?
This command is similar to the configure 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 add 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 speci‐
fied, returns a list describing the current options for
tab index (see Tk_ConfigureInfo for information on the
format of this list).
pathName prev
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.
pathName select index
Selects the tab specified by index as the currently
selected tab. It behaves as if the user selected the new
tab.
EXAMPLE
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.
package require Iwidgets 4.0
# Define a proc that knows how to select an item
# from a list given an index from the tabset -command callback.
proc selectItem { item } {
.l selection clear [.l curselection]
.l selection set $item
.l see $item
}
# Define a proc that knows how to select a tab
# given a y pixel coordinate from the list..
proc selectTab { y } {
set whichItem [.l nearest $y]
.ts select $whichItem
}
# Create a listbox with two items (one and two)
# and bind button 1 press to the selectTab procedure.
listbox .l -selectmode single -exportselection false
.l insert end one
.l insert end two
.l selection set 0
pack .l
bind .l <ButtonPress-1> { selectTab %y }
# Create a tabset, set its -command to call selectItem
# Add two labels to the tabset (one and two).
iwidgets::tabset .ts -command selectItem
.ts add -label 1
.ts add -label 2
.ts select 0
pack .ts -fill x -expand no
AUTHOR
Bill W. Scott
KEYWORDS
tab tabset notebook tabnotebook
Tkiwidgets::tabset(1)
