Struct App 

pub struct App {

    pub core: MathypadCore,
    pub scroll_offset: usize,
    pub mode: Mode,
    pub result_animations: Vec<Option<ResultAnimation>>,
    pub file_path: Option<PathBuf>,
    pub has_unsaved_changes: bool,
    pub show_unsaved_dialog: bool,
    pub show_save_as_dialog: bool,
    pub save_as_input: String,
    pub save_as_and_quit: bool,
    pub separator_position: u16,
    pub is_dragging_separator: bool,
    pub is_hovering_separator: bool,
    pub copy_flash_animations: Vec<Option<ResultAnimation>>,
    pub copy_flash_is_result: Vec<bool>,
    pub last_click_time: Option<Instant>,
    pub last_click_position: Option<(u16, u16)>,
    pub show_welcome_dialog: bool,
    pub welcome_scroll_offset: usize,
    pub pending_normal_command: Option<char>,
    pub command_line: String,
    pub command_cursor: usize,
}

Main application state for the mathematical notepad

Fields

core: MathypadCore

Core calculation and text state (shared with web UI)

scroll_offset: usize

mode: Mode

result_animations: Vec<Option<ResultAnimation>>

file_path: Option<PathBuf>

has_unsaved_changes: bool

show_unsaved_dialog: bool

show_save_as_dialog: bool

save_as_input: String

save_as_and_quit: bool

separator_position: u16

is_dragging_separator: bool

is_hovering_separator: bool

copy_flash_animations: Vec<Option<ResultAnimation>>

copy_flash_is_result: Vec<bool>

last_click_time: Option<Instant>

last_click_position: Option<(u16, u16)>

show_welcome_dialog: bool

welcome_scroll_offset: usize

pending_normal_command: Option<char>

command_line: String

command_cursor: usize

Implementations

impl App

pub fn insert_char(&mut self, c: char)

Insert a character at the current cursor position

pub fn delete_char(&mut self)

Delete the character before the cursor

pub fn delete_word(&mut self)

Delete the word before the cursor (Ctrl+W behavior)

pub fn new_line(&mut self)

Insert a new line at the cursor position

pub fn move_cursor_up(&mut self)

Move cursor up one line

pub fn move_cursor_down(&mut self)

Move cursor down one line

pub fn move_cursor_left(&mut self)

Move cursor left one character

pub fn move_cursor_right(&mut self)

Move cursor right one character

pub fn delete_line(&mut self)

Delete the entire current line (vim ‘dd’ command)

pub fn delete_char_at_cursor(&mut self)

Delete character at cursor position (vim ‘x’ command)

pub fn move_word_forward(&mut self)

Move cursor forward by one word (vim ‘w’ command) A word is a sequence of alphanumeric characters or underscores

pub fn move_word_backward(&mut self)

Move cursor backward by one word (vim ‘b’ command)

pub fn move_word_forward_big(&mut self)

Move cursor forward by one WORD (vim ‘W’ command) A WORD is a sequence of non-whitespace characters

pub fn move_word_backward_big(&mut self)

Move cursor backward by one WORD (vim ‘B’ command)

pub fn delete_word_forward(&mut self)

Delete from cursor to the end of the current word (vim ‘dw’ command)

pub fn delete_word_backward(&mut self)

Delete from cursor to the beginning of the previous word (vim ‘db’ command)

pub fn delete_word_forward_big(&mut self)

Delete from cursor to the end of the current WORD (vim ‘dW’ command)

pub fn delete_word_backward_big(&mut self)

Delete from cursor to the beginning of the previous WORD (vim ‘dB’ command)

pub fn update_result(&mut self, line_index: usize)

Update the calculation result for a given line

pub fn recalculate_all(&mut self)

Recalculate all lines in the notebook

pub fn update_animations(&mut self)

Update all animations and remove completed ones

pub fn get_result_animation( &self, line_index: usize, ) -> Option<&ResultAnimation>

Get the animation for a specific line

pub fn save(&mut self) -> Result<(), Error>

Save the current content to the file

pub fn save_as(&mut self, path: PathBuf) -> Result<(), Error>

Save the current content to a new file

pub fn set_file_path(&mut self, path: Option<PathBuf>)

Set the file path (used when loading a file)

pub fn show_save_as_dialog(&mut self, quit_after_save: bool)

Show the save as dialog

pub fn save_as_from_dialog(&mut self) -> Result<bool, Error>

Try to save with the current save-as filename

pub fn update_separator_position(&mut self, mouse_x: u16, terminal_width: u16)

Update separator position based on mouse column position

pub fn is_mouse_over_separator(&self, mouse_x: u16, terminal_width: u16) -> bool

Check if mouse position is over the separator (within a few columns for easier dragging)

pub fn start_dragging_separator(&mut self)

Start dragging the separator

pub fn stop_dragging_separator(&mut self)

Stop dragging the separator

pub fn set_separator_hover(&mut self, hovering: bool)

Set hover state for the separator

pub fn copy_to_clipboard( &mut self, text: &str, line_index: usize, is_result: bool, ) -> Result<(), String>

Copy text to clipboard and start flash animation

pub fn is_double_click(&mut self, mouse_x: u16, mouse_y: u16) -> bool

Check if a click is a double-click

pub fn get_copy_flash_animation( &self, line_index: usize, ) -> Option<&ResultAnimation>

Get the copy flash animation for a specific line

Trait Implementations

impl Default for App

fn default() -> App

Returns the “default value” for a type.