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e ƒ ƒ n d S)z:Simple textbox editing widget with Emacs-like keybindings.é Nc C sð | j | d | t j | | d ƒ | j | | d t j | | d ƒ | j | | d t j | | d ƒ | j | d | t j | | d ƒ | j | | t j ƒ | j | | t j ƒ | j | | t j ƒ | j | | t j ƒ d S)z^Draw a rectangle with corners at the provided upper-left
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S)ÚTextboxad Editing widget using the interior of a window object.
Supports the following Emacs-like key bindings:
Ctrl-A Go to left edge of window.
Ctrl-B Cursor left, wrapping to previous line if appropriate.
Ctrl-D Delete character under cursor.
Ctrl-E Go to right edge (stripspaces off) or end of line (stripspaces on).
Ctrl-F Cursor right, wrapping to next line when appropriate.
Ctrl-G Terminate, returning the window contents.
Ctrl-H Delete character backward.
Ctrl-J Terminate if the window is 1 line, otherwise insert newline.
Ctrl-K If line is blank, delete it, otherwise clear to end of line.
Ctrl-L Refresh screen.
Ctrl-N Cursor down; move down one line.
Ctrl-O Insert a blank line at cursor location.
Ctrl-P Cursor up; move up one line.
Move operations do nothing if the cursor is at an edge where the movement
is not possible. The following synonyms are supported where possible:
KEY_LEFT = Ctrl-B, KEY_RIGHT = Ctrl-F, KEY_UP = Ctrl-P, KEY_DOWN = Ctrl-N
KEY_BACKSPACE = Ctrl-h
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| d | j | d ƒ ƒ q^qan d S)z!Process a single editing command.r r )#r r r r r r r
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r r r r r Úchrr r r )r Úresultr Ústopr r r r Úgather” s /zTextbox.gatherNc C sa xT | j j ƒ } | r' | | ƒ } n | s3 q n | j | ƒ sF Pn | j j ƒ q W| j ƒ S)z2Edit in the widget window and collect the results.)r Zgetchr# r! r* )r Zvalidater r r r Úedit¤ s zTextbox.edit)
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