Module controller 

Controller module (MVC “C”).

Responsibilities:

• Accept Action values from the view.
• Validate and translate actions into Commands.
• Mutate PlotModel and data table state.
• Maintain undo/redo stacks.
• Handle import/export workflows.

Architecture notes:

• Actions are user intents; Controller validates and turns them into Commands.
• Commands are the single source of truth for mutations, enabling undo/redo.
• Export path aims to mirror on-screen layout to avoid visual drift.
• Axis titles are positioned relative to the plotting area, not the full canvas, to avoid vertical drift with font-size changes.

Re-exports

pub use action::*;

pub use command::*;

Modules

action

View-to-controller intents.

command

Undoable state transitions.

Structs

Notification

EN: Notification shown in the status block of the editor. RU: Soobshchenie v statuse redaktora.

PlotController

EN: Main MVC controller. Owns model, data table, command history and notifications. RU: Glavnyy MVC-kontroller. Hranit model, tablitsu dannyh, istoriyu komand i uvedomleniya.

Enums

ControllerError

EN: Controller-level error for validation and user-safe feedback. RU: Oshibka kontrollera dlya validatsii i bezopasnoy obratnoy svyazi.

NotificationLevel

EN: UI notification severity. RU: Uroven uvedomleniya dlya UI.