Module menu 

The NeXTSTEP application menu (spec §4.1): a vertical floating panel with a black title bar and beveled items, whose submenus cascade to the right.

The menu knows nothing about the app. show draws it and returns the Command the user picked, and the caller runs it. key_command maps the key equivalents (Ctrl on Linux and Windows, Cmd on macOS) to the same commands. Everything is painted with painter shapes and text.

Structs

MenuState

Where the menu sits and which submenu is open. Lives on the app.

Row 🔒

One row of a menu panel, as drawn.

Enums

Command

Something the user can ask for from the menu or a key equivalent.

Top 🔒

What a top-level item does.

Constants

BORDER 🔒

FONT_SIZE 🔒

ITEM_HEIGHT 🔒

MENU 🔒

The menu tree. Top level per spec §4.1; submenus hold the commands the app can already run, plus disabled placeholders for File.

MENU_W 🔒

Room the main menu takes from the workspace’s left edge: its ~110 px panel plus its margin. A fresh worksheet window opens clear of it.

MIN_WIDTH 🔒

MODEL_BROWSER 🔒

NO_VIEWS 🔒

PAD 🔒

RIGHT_SLOT 🔒

Room between a label and the right-hand marker, plus the marker itself.

TITLE 🔒

TITLE_HEIGHT 🔒

Functions

bold 🔒

font 🔒

key_command

Map a key equivalent (pressed with Ctrl/Cmd) to its command, read off the MENU tree so the two can’t disagree: a lowercase letter is the plain chord, an uppercase one the chord with Shift. Y is a Redo alias.

keyed_items 🔒

Every menu item with a key equivalent, top level and submenus.

menu_id

The menu panel’s area id.

paint_row 🔒

Paint one beveled item: face, 1 px white top-left, 1 px black bottom-right, label left and its marker right-aligned.

panel 🔒

Draw one menu panel (title bar plus rows) in its own foreground [Area] at pos. Returns the panel’s outer rect and each row’s response.

panel_size 🔒

Outer size of a menu panel titled title holding rows.

show

Draw the menu and return the command picked this frame, if any. views fills the View submenu as (name, is_current); picking the n-th returns Command::OpenView(n). enabled greys out commands that can’t run now. The menu’s top-left starts at home; after that it stays where it’s dragged.

sub_id 🔒

Type Aliases

Leaf 🔒

A submenu row: label, key equivalent, command. None is not built yet and draws disabled.