RedBear-OS

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vasilito d4cb65fcff tlc: phase 19 — column (rectangular) block operations

Adds MC's column-block selection to the editor. Algorithm
cross-references MC WEdit::column_highlight + MarkColumn* key
bindings in misc/mc.default.keymap.

Cursor changes:
  - SelectionMode::{Stream, Column} enum
  - column_anchor: Option<usize> (parallel to anchor)
  - column_selection_rect() → normalized ColumnRect
  - selected_text() / delete_selection() handle column mode:
      * Column copy text = rows joined by \n
      * Column delete strips rectangle cols from each line,
        cursor lands at top-left corner, anchor cleared
  - start_selection() / start_column_selection() are
    mutually exclusive (switching clears other anchor)
  - has_selection() / clear_selection() honor both modes

Keybindings (editor/handlers.rs):
  - Alt+Left/Right → MarkColumnLeft/Right (column horiz extend)
  - Alt+Up/Down   → MarkColumnUp/Down   (column vert extend)
  - Alt+PgUp/PgDn → MarkColumnPageUp/Down (column page extend)
  - Existing Shift+Arrow still produces stream selections

Renderer (editor/render.rs):
  - new line_selection_range() helper returns per-line byte
    range from either stream or column source
  - column cells get [editor] editmarked background highlight
  - syntect path naturally uses byte ranges, so column highlight
    composes with syntax coloring

Tests: 1119 passed (was 1117, +2 handler tests; cursor +7 tests).

PLAN.md: §15d row 21 marked ✅ Done; Changelog entry added.

2026-06-20 18:41:10 +03:00

Assets/images

…

cache

config: add x11proto dependency for libxau and SDDM

2026-06-20 14:57:46 +03:00

config

chore: commit durable overlay state (configs, patches, recipe symlinks)

2026-05-01 03:11:21 +01:00

docs

docs: ratatui §14 cleanup — collapse duplicated §14 headers + add v1.8 bullet

2026-06-20 18:22:58 +03:00