Struct Buffer 

pub struct Buffer {

    pub id: usize,
    pub file_path: Option<PathBuf>,
    pub name: String,
    pub modified: bool,
    pub datatable: Option<Arc<DataTable>>,
    pub original_source: Option<Arc<DataTable>>,
    pub dataview: Option<DataView>,
    pub mode: AppMode,
    pub edit_mode: EditMode,
    pub input: Input,
    pub input_manager: Box<dyn InputManager>,
    pub table_state: TableState,
    pub last_results_row: Option<usize>,
    pub last_scroll_offset: (usize, usize),
    pub last_query: String,
    pub status_message: String,
    pub sort_state: SortState,
    pub filter_state: FilterState,
    pub fuzzy_filter_state: FuzzyFilterState,
    pub search_state: SearchState,
    pub column_stats: Option<ColumnStatistics>,
    pub view_state: ViewState,
    pub column_widths: Vec<u16>,
    pub compact_mode: bool,
    pub show_row_numbers: bool,
    pub case_insensitive: bool,
    pub undo_stack: Vec<(String, usize)>,
    pub redo_stack: Vec<(String, usize)>,
    pub kill_ring: String,
    pub last_visible_rows: usize,
    pub last_query_source: Option<String>,
    pub highlighted_text_cache: Option<Vec<(String, Color)>>,
    pub last_highlighted_text: String,
    pub saved_input_state: Option<(String, usize)>,
}

Represents a single buffer/tab with its own independent state

Fields

id: usize

Unique identifier for this buffer

file_path: Option<PathBuf>

File path if loaded from file

name: String

Display name (filename or “untitled”)

modified: bool

Whether this buffer has unsaved changes

datatable: Option<Arc<DataTable>>

original_source: Option<Arc<DataTable>>

Original unmodified DataTable (preserved for query operations)

dataview: Option<DataView>

DataView for applying filters like hidden columns without modifying the DataTable

mode: AppMode

edit_mode: EditMode

input: Input

input_manager: Box<dyn InputManager>

table_state: TableState

last_results_row: Option<usize>

last_scroll_offset: (usize, usize)

last_query: String

status_message: String

sort_state: SortState

filter_state: FilterState

fuzzy_filter_state: FuzzyFilterState

search_state: SearchState

column_stats: Option<ColumnStatistics>

view_state: ViewState

column_widths: Vec<u16>

compact_mode: bool

show_row_numbers: bool

case_insensitive: bool

undo_stack: Vec<(String, usize)>

redo_stack: Vec<(String, usize)>

kill_ring: String

last_visible_rows: usize

last_query_source: Option<String>

highlighted_text_cache: Option<Vec<(String, Color)>>

last_highlighted_text: String

saved_input_state: Option<(String, usize)>

Implementations

impl Buffer

pub fn new(id: usize) -> Self

Create a new empty buffer

pub fn from_csv( id: usize, path: PathBuf, _csv_client: CsvApiClient, _table_name: String, ) -> Self

Create a buffer from a CSV file

pub fn from_json( id: usize, path: PathBuf, _csv_client: CsvApiClient, _table_name: String, ) -> Self

Create a buffer from a JSON file

pub fn display_name(&self) -> String

Get display name for tab bar

pub fn short_name(&self, max_len: usize) -> String

Get short name for tab bar (truncated if needed)

pub fn has_file(&self, path: &PathBuf) -> bool

Check if buffer has a specific file open

pub fn move_cursor_word_backward(&mut self)

Move cursor to previous word boundary

pub fn move_cursor_word_forward(&mut self)

Move cursor to next word boundary

pub fn delete_word_backward(&mut self)

Delete word backward from cursor

pub fn delete_word_forward(&mut self)

Delete word forward from cursor

pub fn kill_line(&mut self)

Kill line from cursor to end

pub fn kill_line_backward(&mut self)

Kill line from start to cursor

pub fn jump_to_prev_token(&mut self)

Jump to previous SQL token

pub fn jump_to_next_token(&mut self)

Jump to next SQL token

pub fn yank(&mut self)

Yank (paste) from kill ring

pub fn expand_asterisk(&mut self, parser: &HybridParser) -> bool

Expand SELECT * to column names using schema information

pub fn expand_asterisk_visible(&mut self) -> bool

Expand SELECT * to only visible column names

Trait Implementations

impl BufferAPI for Buffer

fn get_id(&self) -> usize

fn get_query(&self) -> String

fn set_query(&mut self, query: String)

fn get_last_query(&self) -> String

fn set_last_query(&mut self, query: String)

fn get_datatable(&self) -> Option<&DataTable>

fn get_datatable_mut(&mut self) -> Option<&mut DataTable>

fn has_datatable(&self) -> bool

fn get_original_source(&self) -> Option<&DataTable>

fn set_datatable(&mut self, datatable: Option<Arc<DataTable>>)

fn set_results_as_datatable( &mut self, response: Option<QueryResponse>, ) -> Result<(), String>

V50: Helper to convert QueryResponse to DataTable and store it

fn get_dataview(&self) -> Option<&DataView>

fn get_dataview_mut(&mut self) -> Option<&mut DataView>

fn set_dataview(&mut self, dataview: Option<DataView>)

fn has_dataview(&self) -> bool

fn get_mode(&self) -> AppMode

fn set_mode(&mut self, mode: AppMode)

fn get_edit_mode(&self) -> EditMode

fn set_edit_mode(&mut self, mode: EditMode)

fn get_status_message(&self) -> String

fn set_status_message(&mut self, message: String)

fn get_selected_row(&self) -> Option<usize>

fn set_selected_row(&mut self, row: Option<usize>)

fn get_current_column(&self) -> usize

fn set_current_column(&mut self, col: usize)

fn get_scroll_offset(&self) -> (usize, usize)

fn set_scroll_offset(&mut self, offset: (usize, usize))

fn get_last_results_row(&self) -> Option<usize>

fn set_last_results_row(&mut self, row: Option<usize>)

fn get_last_scroll_offset(&self) -> (usize, usize)

fn set_last_scroll_offset(&mut self, offset: (usize, usize))

fn get_filter_pattern(&self) -> String

fn set_filter_pattern(&mut self, pattern: String)

fn is_filter_active(&self) -> bool

fn set_filter_active(&mut self, active: bool)

fn get_fuzzy_filter_pattern(&self) -> String

fn set_fuzzy_filter_pattern(&mut self, pattern: String)

fn is_fuzzy_filter_active(&self) -> bool

fn set_fuzzy_filter_active(&mut self, active: bool)

fn get_fuzzy_filter_indices(&self) -> &Vec<usize>

fn set_fuzzy_filter_indices(&mut self, indices: Vec<usize>)

fn clear_fuzzy_filter(&mut self)

fn get_search_pattern(&self) -> String

fn set_search_pattern(&mut self, pattern: String)

fn get_search_matches(&self) -> Vec<(usize, usize)>

fn set_search_matches(&mut self, matches: Vec<(usize, usize)>)

fn get_current_match(&self) -> Option<(usize, usize)>

fn set_current_match(&mut self, match_pos: Option<(usize, usize)>)

fn get_search_match_index(&self) -> usize

fn set_search_match_index(&mut self, index: usize)

fn clear_search_state(&mut self)

fn get_column_stats(&self) -> Option<&ColumnStatistics>

fn set_column_stats(&mut self, stats: Option<ColumnStatistics>)

fn get_sort_column(&self) -> Option<usize>

fn set_sort_column(&mut self, column: Option<usize>)

fn get_sort_order(&self) -> SortOrder

fn set_sort_order(&mut self, order: SortOrder)

fn is_compact_mode(&self) -> bool

fn set_compact_mode(&mut self, compact: bool)

fn is_show_row_numbers(&self) -> bool

fn set_show_row_numbers(&mut self, show: bool)

fn is_viewport_lock(&self) -> bool

fn set_viewport_lock(&mut self, locked: bool)

fn get_viewport_lock_row(&self) -> Option<usize>

fn set_viewport_lock_row(&mut self, row: Option<usize>)

fn get_column_widths(&self) -> &Vec<u16>

fn set_column_widths(&mut self, widths: Vec<u16>)

fn is_case_insensitive(&self) -> bool

fn set_case_insensitive(&mut self, case_insensitive: bool)

fn get_name(&self) -> String

fn set_name(&mut self, name: String)

fn get_file_path(&self) -> Option<&PathBuf>

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

fn is_modified(&self) -> bool

fn set_modified(&mut self, modified: bool)

fn get_last_query_source(&self) -> Option<String>

fn set_last_query_source(&mut self, source: Option<String>)

fn get_input_value(&self) -> String

fn set_input_value(&mut self, value: String)

fn get_input_cursor(&self) -> usize

fn set_input_cursor(&mut self, pos: usize)

fn apply_filter(&mut self) -> Result<()>

fn apply_sort(&mut self) -> Result<()>

fn search(&mut self) -> Result<()>

fn clear_filters(&mut self)

fn get_row_count(&self) -> usize

fn get_column_count(&self) -> usize

fn get_column_names(&self) -> Vec<String>

fn get_undo_stack(&self) -> &Vec<(String, usize)>

fn push_undo(&mut self, state: (String, usize))

fn pop_undo(&mut self) -> Option<(String, usize)>

fn get_redo_stack(&self) -> &Vec<(String, usize)>

fn push_redo(&mut self, state: (String, usize))

fn pop_redo(&mut self) -> Option<(String, usize)>

fn clear_redo(&mut self)

fn perform_undo(&mut self) -> bool

fn perform_redo(&mut self) -> bool

fn save_state_for_undo(&mut self)

fn get_kill_ring(&self) -> String

fn set_kill_ring(&mut self, text: String)

fn is_kill_ring_empty(&self) -> bool

fn get_last_visible_rows(&self) -> usize

fn set_last_visible_rows(&mut self, rows: usize)

fn debug_dump(&self) -> String

fn get_input_text(&self) -> String

fn set_input_text(&mut self, text: String)

fn handle_input_key(&mut self, event: KeyEvent) -> bool

fn switch_input_mode(&mut self, _multiline: bool)

fn get_input_cursor_position(&self) -> usize

fn set_input_cursor_position(&mut self, position: usize)

fn is_input_multiline(&self) -> bool

fn navigate_history_up(&mut self, history: &[String]) -> bool

fn navigate_history_down(&mut self, history: &[String]) -> bool

fn reset_history_navigation(&mut self)

fn clear_results(&mut self)

impl Clone for Buffer

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl StateCoordinator for Buffer

fn process_event(&self, event: &StateEvent) -> StateChange

Process a state event and return changes to apply

fn apply_change(&mut self, change: StateChange)

Apply a state change to the buffer

fn emit_event(&self, event: StateEvent)

Emit an event (for notification)