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A drawing program for the terminal

╭──────────────╮
│ Dependencies │
╰──────────────╯

  • Perl 5.18 or later
  • A terminal with colors, UTF-8 character encoding and a font supporting
    the box-drawing characters
  • Optional: xclip, for integration with the X clipboard

╭──────────────╮
│ Installation │
╰──────────────╯

Copy it to e.g. /usr/local/bin/

╭──────────╮
│ Features │
╰──────────╯

  • Drawing using all of the Unicode box-drawing characters, i.e. the
    characters in the range between U+2500 and U+257F (thin/heavy/double,
    square/rounded corners, solid/dotted/dashed/long-dashed,
    ortogonal/diagonal stroke).
  • Navigation using the Arrow keys
  • Drawing pen using Ctrl + Arrows
  • Toggle visual stroke selector using the Tab key
  • Selection using Shift + Arrow keys
  • Sticky selection using Ctrl + Space
  • Border around selection using Return
  • Clear selection using Backspace, Delete or 0
  • Keys '-', 'o', '=' and 'b' to select the most common strokes
    ╶────╴, ═════ and ╺━━━━━╸
    where 'o' selects the single stroke with rounded corners.
  • Diagonals and cross using the keys '\', '/' and 'x'
  • Block characters, semigraphics (originally from the Sinclair ZX80
    computer, released in 1980) using the numeric keys (numpad 1-9)
  • Full block of different shades of gray using key '5' repeatedly
      ██ ▓▓ ▒▒ ░░
  • Automatically truncates trailing whitespace
  • Help popup on 'h' key
  • Keyboard hints in status bar
  • Cursor coordinates in status bar
  • Selection size in status bar
  • Copy, cut and paste using the X clipboard (^C, ^X, ^V)
  • Rectangular paste (using bracketed paste mode)
  • Insert arrow head using '^', 'v', '>', '<'; press again for variations
  • Bullets, squares and stars using the ',', '.' and '*' keys; repeat for
    variations
  • Multi-line brackets '()[]{}' from the Misc. Technical Unicode block
  • Multi-line integral sign using 'S'
  • Text input mode (INSERT)

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│ TODO │
╰──────╯

  • Fixed menu in status bar
  • Add text mode to help boxes
  • Add multi-line brackets to help boxes
  • Add arrow heads and bullets/stars to help boxes
  • Improvements to cut and paste regarding the border connections
  • Undo (^Z) and redo (^Y) (Shift+Ctrl+z isn't detectable)
  • Load file from command line
  • Save file (^S)
  • Open file (^O)
  • Scroll at window edges
  • Scroll using pgup/pgdn
  • Internal cut/copy/paste buffer when xclip isn't installed
  • Paste as floating selection (different color; drop with RETURN or SPACE)
  • Insert/delete line or column
  • Erase line without erasing crossing lines (ALT + ARROW keys)
  • Move selected: m = copy & paste floating; then ARROWS to move, SPACE to
    drop
  • Multi-area selection, non-rectangular selections (vague idea)
  • Proper man page

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│ License │
╰─────────╯

GNU GPL 3+

╭────────╮
│ Author │
╰────────╯

Written by Viktor Söderqvist, 2019