ttk::notebook(n)

✨ ttk::notebook(n) — Multi-Paned Container Widget ✨

okay so bestie, this is the manual page for ttk::notebook(n), aka the multi-paned container widget. It's giving very "tabs but make it Tk" energy 💅.

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🌸 NAME 🌸

ttk::notebook — multi-paned container widget 🫶

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🎀 SYNOPSIS 🎀

ttk::notebook pathname ?options...?
pathname add window ?options...?
pathname insert index window ?options...?

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🦋 DESCRIPTION 🦋

so a ttk::notebook widget manages a whole collection of windows and shows exactly one at a time, bestie. Each content window is associated with a tab, and the user can select that tab to change which window is currently displayed. iconic behavior honestly ✨.

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💖 STANDARD OPTIONS 💖

• -class
• -cursor
• -takefocus
• -style

see the ttk_widget manual entry for all the details on these standard options 👑.

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🌈 WIDGET-SPECIFIC OPTIONS 🌈

• -height — command-line name: -height; database name: height; database class: Height. If present and greater than zero, it specifies the desired height of the pane area (not including internal padding or tabs). Otherwise, the maximum height of all panes is used.
• -padding — command-line name: -padding; database name: padding; database class: Padding. Specifies the amount of extra space to add around the outside of the notebook. The padding is a list of up to four length specifications left top right bottom. If fewer than four elements are specified, bottom defaults to top, right defaults to left, and top defaults to left. In other words: a list of three numbers specifies the left, vertical, and right padding; a list of two numbers specifies the horizontal and the vertical padding; a single number specifies the same padding all the way around the widget. periodt 🎀.
• -width — command-line name: -width; database name: width; database class: Width. If present and greater than zero, it specifies the desired width of the pane area (not including internal padding). Otherwise, the maximum width of all panes is used.

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🍓 TAB OPTIONS 🍓

The following options may be specified for individual notebook panes:

• -state — command-line name: -state; database name: state; database class: State. Either normal, disabled or hidden. If disabled, then the tab is not selectable. If hidden, then the tab is not shown.
• -sticky — command-line name: -sticky; database name: sticky; database class: Sticky. Specifies how the content window is positioned within the pane area. Value is a string containing zero or more of the characters n, s, e, or w. Each letter refers to a side (north, south, east, or west) that the content window will “stick” to, as per the grid geometry manager.
• -padding — command-line name: -padding; database name: padding; database class: Padding. Specifies the amount of extra space to add between the notebook and this pane. Syntax is the same as for the widget -padding option.
• -text — command-line name: -text; database name: text; database class: Text. Specifies a string to be displayed in the tab.
• -image — command-line name: -image; database name: image; database class: Image. Specifies an image to display in the tab. See ttk_widget(n) for details.
• -compound — command-line name: -compound; database name: compound; database class: Compound. Specifies how to display the image relative to the text, in the case both -text and -image are present. See label(n) for legal values.
• -underline — command-line name: -underline; database name: underline; database class: Underline. Specifies the integer index (0-based) of a character to underline in the text string. The underlined character is used for mnemonic activation if ttk::notebook::enableTraversal is called.

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🧚 TAB IDENTIFIERS 🧚

The tabid argument to the following commands may take any of the following forms:

• An integer between zero and the number of tabs;
• The name of a content window;
• A positional specification of the form @x,y, which identifies the tab
• The literal string current, which identifies the currently-selected tab; or:
• The literal string end, which returns the number of tabs (only valid for pathname index).

Indexes support the same simple interpretation as for the command string index, with simple integer index arithmetic and indexing relative to end. no cap ✨.

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👑 WIDGET COMMAND 👑

In addition to the standard cget, configure, instate, state and style commands (see ttk::widget), notebook widgets support the following additional commands:

• pathname add window ?options...? — Adds a new tab to the notebook. See TAB OPTIONS for the list of available options. If window is currently managed by the notebook but hidden, it is restored to its previous position.
• pathname forget tabid — Removes the tab specified by tabid, unmaps and unmanages the associated window.
• pathname hide tabid — Hides the tab specified by tabid. The tab will not be displayed, but the associated window remains managed by the notebook and its configuration remembered. Hidden tabs may be restored with the add command.
• pathname identify component x y — Returns the name of the element under the point given by x and y, or the empty string if no component is present at that location. The following subcommands are supported:
  • pathname identify element x y — Returns the name of the element at the specified location.
  • pathname identify tab x y — Returns the index of the tab at the specified location.
• pathname index tabid — Returns the numeric index of the tab specified by tabid, or the total number of tabs if tabid is the string end.
• pathname insert pos subwindow options... — Inserts a pane at the specified position. pos is either the string end, an integer index, or the name of a managed subwindow. If subwindow is already managed by the notebook, moves it to the specified position. See TAB OPTIONS for the list of available options.
• pathname select ?tabid? — Selects the specified tab. The associated content window will be displayed, and the previously-selected window (if different) is unmapped. If tabid is omitted, returns the widget name of the currently selected pane.
• pathname tab tabid ?-option ?value ... — Query or modify the options of the specific tab. If no -option is specified, returns a dictionary of the tab option values. If one -option is specified, returns the value of that option. Otherwise, sets the -options to the corresponding values. See TAB OPTIONS for the available options.
• pathname tabs — Returns the list of windows managed by the notebook, in the index order of their associated tabs.

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💜 KEYBOARD TRAVERSAL 💜

To enable keyboard traversal for a toplevel window containing a notebook widget $nb, call:

ttk::notebook::enableTraversal $nb

This will extend the bindings for the toplevel window containing the notebook as follows:

• Control-Tab selects the tab following the currently selected one.
• Control-Shift-Tab selects the tab preceding the currently selected one.
• Alt-K, where K is the mnemonic (underlined) character of any tab, will select that tab.

Multiple notebooks in a single toplevel may be enabled for traversal, including nested notebooks. However, notebook traversal only works properly if all panes are direct children of the notebook. iykyk 🫶.

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⭐ VIRTUAL EVENTS ⭐

The notebook widget generates a <<NotebookTabChanged>> virtual event after a new tab is selected. main character event energy fr fr 💫.

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🌸 EXAMPLE 🌸

pack [ttk::notebook .nb]
.nb add [frame .nb.f1] -text "First tab"
.nb add [frame .nb.f2] -text "Second tab"
.nb select .nb.f2
ttk::notebook::enableTraversal .nb

✨ STYLING OPTIONS ✨

okay so this is the glow-up section, bestie 💅 styling is where the notebook gets its whole look together.

The class name for a ttk::notebook is TNotebook. The tab has a class name of TNotebook.Tab.

Dynamic states: active, disabled, selected.

TNotebook styling options configurable with ttk::style are:

• -background color
• -bordercolor color
• -darkcolor color
• -foreground color
• -lightcolor color
• -padding padding
• -tabmargins padding
• -tabposition position — Specifies the position of the tab row or column as a string of length 1 or 2. The first character indicates the side as n, s, w, or e, while the second character (if present) is the sticky bit (specified as w, e, n, or s) within the tab position. The default position is n for the aqua theme and nw for all the other built-in themes.

TNotebook.Tab styling options configurable with ttk::style are:

• -background color
• -bordercolor color
• -compound compound
• -expand padding — Defines how much the tab grows in size. Usually used with the selected dynamic state. -tabmargins should be set appropriately so that there is room for the tab growth.

For example, the Ttk library file vistaTheme.tcl contains the lines

ttk::style configure TNotebook -tabmargins {2 2 2 0}
ttk::style map TNotebook.Tab -expand {selected {2 2 2 2}}

which are valid for the default value nw of the -tabposition style option. For a ttk::notebook style nbStyle defined by

set nbStyle SW.TNotebook
ttk::style configure $nbStyle -tabposition sw

you will have to adapt the above settings as follows:

ttk::style configure $nbStyle -tabmargins {2 0 2 2}
ttk::style map $nbStyle.Tab -expand {selected {2 2 2 2}}

The easiest way to do this is to invoke the library procedure ttk::configureNotebookStyle with $nbStyle as argument, after setting the style's -tabposition option.

• -font font
• -foreground color
• -padding padding — Some themes use a different padding for the selected tab.

For example, the Ttk library file clamTheme.tcl contains the lines

ttk::style configure TNotebook.Tab \
    -padding {4.5p 1.5p 4.5p 1.5p}
ttk::style map TNotebook.Tab \
    -padding {selected {4.5p 3p 4.5p 1.5p}}

which are valid for the default value nw of the -tabposition style option. For a ttk::notebook style having a different tab position you will have to adapt the above settings accordingly. Again, the easiest way to do this is to invoke the library procedure ttk::configureNotebookStyle with the style name as argument, after setting the style's -tabposition option.

Some options are only available for specific themes.

See the ttk::style manual page for information on how to configure ttk styles.

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👀 SEE ALSO

ttk::widget(n), grid(n)

🏷️ KEYWORDS

pane, tab

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and that's the whole page, bestie 🫶 footer says Tk 8.5, and the date slot is just blank, so we're living in mystery 🙈💜