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iwidgets::tabnotebook(1) [incr Widgets] iwidgets::tabnotebook(1)
____________________________________________________________________________________________________________
NAME
iwidgets::tabnotebook - create and manipulate tabnotebook widgets
SYNOPSIS
iwidgets::tabnotebook pathName? options?
INHERITANCE
itk::Widget <- iwidgets::Tabnotebook
STANDARD OPTIONS
background disabledForeground foreground scrollCommand
cursor font 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: auto
Class: Auto
Command-Line Switch: -auto
Specifies whether to use the automatic packing/unpacking algorithm of the notebook. A value of
true indicates that page frames will be unpacked and packed acoording to the algorithm
described in the select command. A value of false leaves the current page packed and subse-
quent selects, next, or previous commands do not switch pages automatically. In either case
the page's associated command (see the add command's description of the command option) is
invoked. The value may have any of the forms accepted by the Tcl_GetBoolean, such as true,
false, 0, 1, yes, or no.
Name: backdrop
Class: Backdrop
Command-Line Switch: -backdrop
Specifies a background color to use when filling in the backdrop area behind the tabs.
Name: background
Class: Background
Command-Line Switch: -background
Specifies a background color to use for displaying a page and its associated tab. This can be
thought of as the selected tab background color, since the tab associated with the selected
page is the selected tab.
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: borderWidth
Class: BorderWidth
Command-Line Switch: -borderwidth
Specifies the width of shadowed border to place around the notebook area of the tabnotebook.
The default value is 2.
Name: disabledForeground
Class: DisabledForeground
Command-Line Switch: -disabledforeground
Specifies a foreground color to use for displaying a tab's label when its state is disabled.
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
oriented tabs are always equal in width.
Name: foreground
Class: Foreground
Command-Line Switch: -foreground
Specifies a foreground color to use for displaying a page and its associated tab label. This
can be thought of as the selected tab background color, since the tab associated with the
selected page is the selected tab.
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 keyword 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: -Bmargin
Specifies the amount of space to place between the outside edge of the tabnotebook and the
outside edge of its tabs. If tabPos is s, this is the amount of space between the bottom edge
of the tabnotebook 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 tabnotebook and the top edge of the set of tabs. If tab-Pos tabPos
Pos is e, this is the amount of space between the right edge of the tabnotebook 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 tabnotebook 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 of the tabnotebook than the unselected tabs. A
value of true says to raise selected tabs, a value of false turns this feature 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 tabnotebook and the
starting edge of its tabs. For horizontally positioned tabs, this is the amount of space
between the left edge of the notebook and the left edge of the first tab. For vertically posi-tioned positioned
tioned tabs, this is the amount of space between the top of the notebook 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_GetPixels.
Name: state
Class: State
Command-Line Switch: -state
Sets the active state of the tabnotebook. Specifying normal allows all pages to be selectable.
Specifying disabled disables the notebook causing all page tabs to be drawn in the disabled-Foreground disabledForeground
Foreground color.
Name: tabBackground
Class: TabBackground
Command-Line Switch: -tabbackground
Specifies a background color to use for displaying tab backgrounds when they are in their uns-elected unselected
elected state. This is the background associated with tabs on all pages other than the
selected page.
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_GetBoolean, such as true, false, 0, 1,
yes, or no.
Name: tabForeground
Class: TabForeground
Command-Line Switch: -tabforeground
Specifies a foreground color to use for displaying tab labels when they are in their unse-lected unselected
lected state. This is the foreground associated with tabs on all pages other than the selected
page.
Name: tabPos
Class: TabPos
Command-Line Switch: -tabpos
Specifies the location of the set of tabs in relation to the notebook area. Must be n, s, e,
or w. Defaults to s.
____________________________________________________________________________________________________________
DESCRIPTION
The iwidgets::tabnotebook command creates a new window (given by the pathName argument) and makes it
into a tabnotebook widget. Additional options, described above may be specified on the command line
or in the option database to configure aspects of the tabnotebook such as its colors, font, and text.
The iwidgets::tabnotebook 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 tabnotebook is a widget that contains a set of tabbed pages. It displays one page from the set as
the selected page. A Tab displays the label for the page to which it is attached and serves as a page
selector. When a page's tab is selected, the page's contents are displayed in the page area. The
selected tab has a three-dimensional effect to make it appear to float above the other tabs. The tabs
are displayed as a group along either the left, top, right, or bottom edge. When first created a tab-notebook tabnotebook
notebook has no pages. Pages may be added or deleted using widget commands described below.
A special option may be provided to the tabnotebook. The -auto option specifies whether the tabnote-book tabnotebook
book will automatically handle the unpacking and packing of pages when pages are selected. A value of
true signifies that the notebook will automatically manage it. This is the default value. A value of
false signifies the notebook will not perform automatic switching of pages.
NOTEBOOK PAGES
A tabnotebook's pages area contains a single child site frame. When a new page is created it is a
child of this frame. The page's child site frame serves as a geometry container for applications to
pack widgets into. It is this frame that is automatically unpacked or packed when the auto option is
true. This creates the effect of one page being visible at a time. When a new page is selected, the
previously selected page's child site frame is automatically unpacked from the tabnotebook's child
site frame and the newly selected page's child site is packed into the tabnotebook's child site
frame.
However, sometimes it is desirable to handle page changes in a different manner. By specifying the
auto option as false, child site packing can be disabled and done differently. For example, all wid-gets widgets
gets might be packed into the first page's child site frame. Then when a new page is selected, the
application can reconfigure the widgets and give the appearance that the page was flipped.
In both cases the command option for a page specifies a Tcl Command to execute when the page is
selected. In the case of auto being true, it is between the unpacking of the previously selected page
and the packing of the newly selected page.
Notebook pages can also be controlled with scroll bars or other widgets that obey the scrollcommand
protocol. By giving a scrollbar a -command to call the tabnotebook's select method, the tabnotebook
can be controlled with a scrollbar.
The notebook area is implemented with the notebook mega widget.
TABS
Tabs appear along the edge of the notebook area. Tabs are drawn to appear attached to their associ-ated associated
ated page. When a tab is clicked on, the associated page is selected and the tab is drawn as raised
above all other tabs and as a seamless part of its notebook page. Tabs can be controlled in their
location along the edges, the angle tab sides are drawn with, gap between tabs, starting margin of
tabs, internal padding around text labels in a tab, the font, and its label.
The Tab area is implemented with the tabset mega widget. See tabset(1). Tabs may be oriented along
either the north, south, east, or west sides with the tabPos option. North and south tabs may appear
as angled, square, or bevelled. West and east tabs may appear as square or bevelled. By changing tab
gaps, tab angles, bevelling, orientations, colors, fonts, start locations, and margins; tabs may
appear in a wide variety of styles. For example, it is possible to implement Microsoft-style tabs,
Borland property tab styles, or Borland Delphi style tabs all with the same tabnotebook.
WIDGET-SPECIFIC METHODS
The iwidgets::tabnotebook 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 notebook take as one argument an indicator of which page of the
notebook to operate on. These indicators are called indexes and may be specified in any of the fol-lowing following
lowing forms:
number Specifies the page numerically, where 0 corresponds to the first page in the notebook, 1 to
the second, and so on.
select Specifies the currently selected page's index. If no page is currently selected, the value -1
is returned.
end Specifes the last page in the tabnotebook's index. If the notebook 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 pat-tern-matched pattern-matched
tern-matched against the label of each page in the notebook, in order from the first to the
last page, until a matching entry is found. The rules of Tcl_StringMatch are used. The fol-lowing following
lowing commands are possible for tabnotebook widgets:
pathName add ?option value option value ...?
Add a new page at the end of the tabnotebook. A new child site frame is created. 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 tabnotebook is used. This is generally only set at the tabnote-book tabnotebook
book level. Tabs normally will want to share the same angle value.
-background value
Specifies a background color to use for displaying tabs when they are selected and for
displaying the current page. If this option is specified as an empty string (the
default), then the background option for the overall tabnotebook 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 generally only set at
the tabnotebook level. Tabs normally will want to share the same bevelAmount.
-bitmap value
If label is a non-empty string, specifies a bitmap to display in this page's tab. Bit-map Bitmap
map may be of any of the forms accepted by Tk_GetPixmap.
-command value
Specifies a Tcl command to be executed when this page is selected. This allows the pro-grammer programmer
grammer a hook to reconfigure this page's widgets or any other page's widgets.
If the tabnotebook has the auto option set to true, when a page is selected this com-mand command
mand will be called immediately after the previously selected page is unpacked and
immediately before this page is selected. The index value select is valid during this
Tcl command. `index select' will return this page's page number.
If the auto option is set to false, when a page is selected the unpack and pack calls
are bypassed. This Tcl command is still called.
-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 tabnotebook is used.
-font value
Specifies the font to use when drawing a text label on a page tab. If this option is
specified as an empty string then the font option for the overall tabnotebook is used..
-foreground value
Specifies a foreground color to use for displaying tab labels when they are selected.
If this option is specified as an empty string (the default), then the foreground
option for the overall tabnotebook is used.
-label value
Specifies a string to display as an identifying label for a notebook page. This label
serves as an additional identifier used to reference the page. This label may be used
for the index value in widget commands.
-tabbackground value
Specifies a background color to use for displaying a tab when it is not elected. If
this option is specified as an empty string (the default), then the tabBackground
option for the overall tabnotebook is used.
-tabforeground value
Specifies a foreground color to use for displaying the tab's text label when it is not
selected. If this option is specified as an empty string (the default), then the tab-Foreground tabForeground
Foreground option for the overall tabnotebook 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 tabnotebook 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 tabnotebook is used
-state value
Specifies one of two states for the page: normal or disabled. In normal state unse-lected unselected
lected tabs are displayed using the tabforeground and tabbackground option from the
tabnotebook or the page. Selected tabs and pages are displayed using the foreground and
background option from the tabnotebook or the page. The disabled state means that the
page and its tab is insensitive: it doesn't respond to mouse button presses or
releases. In this state the entry is displayed according to its disabledForeground
option for the tabnotebook and the background/tabbackground option from the page or the
tabnotebook.
pathName childSite ?index?
If passed no arguments, returns a list of pathNames for all the pages in the tabnotebook. If
the tab notebook is empty, an empty list is returned
If index is passed, it returns the pathName for the page's child site frame specified by
index. Widgets that are created with this pathName will be displayed when the associated page
is selected. If index is not a valid index, an empty string is returned.
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_ConfigureInfo for informa-tion information
tion 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 correspond-ing corresponding
ing 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. Option may have any of the values
accepted by the iwidgets::tabnotebook command.
pathName delete index1 ?index2?
Delete all of the pages between index1 and index2 inclusive. 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 page in the tabnotebook before the page specified by index. A new child site
frame is created. The additional arguments are the same as for the add command. Returns the
child site pathName.
pathName next
Advances the selected page to the next page (order is determined by insertion order). If the
currently selected page is the last page in the notebook, the selection wraps around to the
first page in the notebook. It behaves as if the user selected the new page.
For notebooks with auto set to true the current page's child site is unpacked from the note-book's notebook's
book's child site frame. Then the next page's child site is packed into the notebook's child
site frame. The Tcl command given with the command option will be invoked between these two
operations.
For notebooks with auto set to false the Tcl command given with the command option will be
invoked.
pathName pageconfigure index ?option? ?value option value ...?
This command is similar to the configure command, except that it applies to the options for an
individual page, whereas configure applies to the options for the tabnotebook as a whole.
Options may have any of the values accepted by the add widget command. If options are speci-fied, specified,
fied, 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 page
index (see Tk_ConfigureInfo for information on the format of this list).
pathName prev
Moves the selected page to the previous page (order is determined by insertion order). If the
currently selected page is the first page in the notebook, the selection wraps around to the
last page in the notebook. It behaves as if the user selected the new page.
For notebooks with auto set to true the current page's child site is unpacked from the note-book's notebook's
book's child site frame. Then the previous page's child site is packed into the notebook's
child site frame. The Tcl command given with the command option will be invoked between these
two operations.
For notebooks with auto set to false the Tcl command given with the command option will be
invoked.
pathName select index
Selects the page specified by index as the currently selected page. It behaves as if the user
selected the new page.
For notebooks with auto set to true the current page's child site is unpacked from the note-book's notebook's
book's child site frame. Then the index page's child site is packed into the notebook's child
site frame. The Tcl command given with the command option will be invoked between these two
operations.
For notebooks with auto set to false the Tcl command given with the command option will be
invoked.
pathName view
Returns the currently selected page. This command is for compatibility with the scrollbar wid-get. widget.
get.
pathName view index
Selects the page specified by index as the currently selected page. This command is for com-patibility compatibility
patibility with the scrollbar widget.
pathName view moveto fraction
Uses the fraction value to determine the corresponding page to move to. This command is for
compatibility with the scrollbar widget.
pathName view scroll num what
Uses the num value to determine how many pages to move forward or backward (num can be nega-tive negative
tive or positive). The what argument is ignored. This command is for compatibility with the
scrollbar widget.
COMPONENTS
Generally all behavior of the internal components, tabset and notebook are controlled via the page-configure pageconfigure
configure method. The following section documents these two components.
Name: tabset
Class: Tabset
This is the tabset component. It implements the tabs that are associated with the notebook
component.
See the "Tabset" widget manual entry for details on the tabset component item.
Name: notebook
Class: Notebook
This is the notebook component. It implements the notebook that contains the pages of the tab-notebook. tabnotebook.
notebook.
See the "Notebook" widget manual entry for details on the notebook component item.
EXAMPLE
Following is an example that creates a tabnotebook with two pages.
package require Iwidgets 4.0
# Create the tabnotebook widget and pack it.
iwidgets::tabnotebook .tn -width 100 -height 100
pack .tn \
-anchor nw \
-fill both \
-expand yes \
-side left \
-padx 10 \
-pady 10
# Add two pages to the tabnotebook,
# labelled "Page One" and "Page Two"
.tn add -label "Page One"
.tn add -label "Page Two"
# Get the child site frames of these two pages.
set page1CS [.tn childsite 0]
set page2CS [.tn childsite "Page Two"]
# Create buttons on each page of the tabnotebook.
button $page1CS.b -text "Button One"
pack $page1CS.b
button $page2CS.b -text "Button Two"
pack $page2CS.b
# Select the first page of the tabnotebook.
.tn select 0
AUTHOR
Bill W. Scott
KEYWORDS
tab tabset notebook tabnotebook page
Tk iwidgets::tabnotebook(1)
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