Fixed Layout API

class threepanewindows.fixed.FixedThreePaneLayout(master, side_width=150, sash_width=2, left_width=None, right_width=None, left_fixed_width=None, right_fixed_width=None, min_pane_size=50, menu_bar=None, **kwargs)

Bases: Frame

A fixed three-pane window layout with left, center, and right panes.

This class provides a simple three-pane layout where the side panes can have fixed or resizable widths, and the center pane fills the remaining space. It supports menu bars and customizable pane sizing.

Parameters:

• master (tk.Widget) – The parent widget.

• side_width (int) – Default width for side panes (default: 150).

• sash_width (int) – Width of the sash/separator between panes (default: 2).

• left_width (Optional[int]) – Specific width for left pane (overrides side_width).

• right_width (Optional[int]) – Specific width for right pane (overrides side_width).

• left_fixed_width (Optional[int]) – Fixed width for left pane (non-resizable).

• right_fixed_width (Optional[int]) – Fixed width for right pane (non-resizable).

• min_pane_size (int) – Minimum size for resizable panes (default: 50).

• menu_bar (Optional[tk.Menu]) – Menu bar to attach to the parent window.

• **kwargs – Additional keyword arguments passed to tk.Frame.

Construct a frame widget with the parent MASTER.

Valid resource names: background, bd, bg, borderwidth, class, colormap, container, cursor, height, highlightbackground, highlightcolor, highlightthickness, relief, takefocus, visual, width.

add_to_center(widget)

Parameters:

widget (Widget)

Return type:

None

add_to_left(widget)

Parameters:

widget (Widget)

Return type:

None

add_to_right(widget)

Parameters:

widget (Widget)

Return type:

None

property center_pane: Frame

Access to center pane for adding widgets.

clear_center()

Clear all widgets from the center pane except the default label.

Return type:

None

clear_left()

Clear all widgets from the left pane except the default label.

Return type:

None

clear_right()

Clear all widgets from the right pane except the default label.

Return type:

None

property frame_center: Frame

Get the center frame container (legacy property name).

property frame_left: Frame

Get the left frame container (legacy property name).

property frame_right: Frame

Get the right frame container (legacy property name).

get_left_width()

Get the current left pane width.

Return type:

int

get_right_width()

Get the current right pane width.

Return type:

int

is_left_fixed()

Check if left pane has fixed width.

Return type:

bool

is_right_fixed()

Check if right pane has fixed width.

Return type:

bool

property left_pane: Frame

Access to left pane for adding widgets.

property right_pane: Frame

Access to right pane for adding widgets.

set_label_texts(left=None, center=None, right=None)

Parameters:

• left (str | None)

• center (str | None)

• right (str | None)

Return type:

None

set_left_width(width)

Set the left pane width.

Parameters:

width (int)

Return type:

None

set_right_width(width)

Set the right pane width.

Parameters:

width (int)

Return type:

None

threepanewindows.fixed.FixedThreePaneWindow

alias of FixedThreePaneLayout

FixedThreePaneWindow

threepanewindows.FixedThreePaneWindow

alias of FixedThreePaneLayout