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123123123123
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  \é  ã               @   sV   d Z ddlZddlZdd„ ZG dd„ dƒZedkrRdd	„ ZejeƒZe	d
e
eƒƒ dS )z:Simple textbox editing widget with Emacs-like keybindings.é    Nc             C   s¼   | 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
    and lower-right coordinates.
    é   N)
ZvlineÚcursesZ	ACS_VLINEZhlineZ	ACS_HLINEÚaddchZACS_ULCORNERZACS_URCORNERZACS_LRCORNERZACS_LLCORNER)ÚwinÚulyÚulxZlryZlrx© r   ú&/usr/lib64/python3.6/curses/textpad.pyÚ	rectangle   s    r
   c               @   sL   e Zd ZdZddd„Zdd„ Zdd„ Zd	d
„ Zdd„ Zdd„ Z	ddd„Z
dS )ÚTextboxad  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
    Fc             C   s.   || _ || _| jƒ  d| _d | _|jdƒ d S )Nr   )r   Úinsert_modeÚ_update_max_yxÚstripspacesÚlastcmdZkeypad)Úselfr   r   r   r   r	   Ú__init__+   s    zTextbox.__init__c             C   s&   | j jƒ \}}|d | _|d | _d S )Nr   )r   ZgetmaxyxÚmaxyÚmaxx)r   r   r   r   r   r	   r   3   s    
zTextbox._update_max_yxc             C   s\   | j ƒ  | j}xHtjj| jj||ƒƒtjjkrBt| j|d ƒ}P n
|dkrLP |d }qW |S )zuGo to the location of the first blank on the given line,
        returning the index of the last non-blank character.r   r   )r   r   r   Úasciir   ÚinchZSPÚmin)r   ÚyZlastr   r   r	   Ú_end_of_line8   s    zTextbox._end_of_linec             C   s¾   | j ƒ  | jjƒ \}}d }xŠ|| jk s0|| jk r¤| jr@| jjƒ }y| jj|ƒ W n tj	k
rf   Y nX | j s~tj
j|ƒ r€P |}| jjƒ \}}|d kr||f}qW |d k	rº| jj|Ž  d S )N)r   r   Úgetyxr   r   r   r   r   r   Úerrorr   ÚisprintÚmove)r   Úchr   ÚxZbackyxZoldchr   r   r	   Ú_insert_printable_charF   s$    
zTextbox._insert_printable_charc             C   sV  | j ƒ  | jjƒ \}}|| _tjj|ƒrJ|| jk s<|| jk rF| j	|ƒ n|tjj
krh| jj|dƒ nê|tjjtjtjjtjfkr|dkr¢| jj||d ƒ nB|dkr¬n8| jrÐ| jj|d | j|d ƒƒ n| jj|d | jƒ |tjjtjfkrR| jjƒ  nL|tjjkr"| jjƒ  n0|tjjkrb| jrN| jj|| j|ƒƒ n| jj|| jƒ nð|tjjtjfkrº|| jk r–| jj||d ƒ n || jkr¤n| jj|d dƒ n˜|tjjkrÌdS |tjjkr| jdkrêdS || jk rR| jj|d dƒ nF|tjjkrZ|dkr@| j|ƒdkr@| jjƒ  n| jj||ƒ | jjƒ  nø|tjjkrt| jjƒ  nÞ|tjjtjfkrØ|| jk rR| jj|d |ƒ || j|d ƒkrR| jj|d | j|d ƒƒ nz|tjj krò| jj!ƒ  n`|tjj"tj#fkrR|dkrR| jj|d |ƒ || j|d ƒkrR| jj|d | j|d ƒƒ dS )z!Process a single editing command.r   r   )$r   r   r   r   r   r   r   r   r   r   ZSOHr   ZSTXZKEY_LEFTZBSZKEY_BACKSPACEr   r   ZdelchZEOTZENQZACKZ	KEY_RIGHTZBELÚNLZVTZdeletelnZclrtoeolZFFÚrefreshÚSOZKEY_DOWNZSIZinsertlnZDLEZKEY_UP)r   r   r   r   r   r   r	   Ú
do_command_   sr    
zTextbox.do_commandc             C   s¨   d}| j ƒ  x–t| jd ƒD ]„}| jj|dƒ | j|ƒ}|dkrH| jrHqxDt| jd ƒD ]2}| jrl||krlP |tt	j
j
| jj||ƒƒƒ }qXW | jdkr|d }qW |S )z.Collect and return the contents of the window.Ú r   r   Ú
)r   Úranger   r   r   r   r   r   Úchrr   r   r   )r   Úresultr   Ústopr   r   r   r	   Úgather    s    
"
zTextbox.gatherNc             C   s@   x6| j jƒ }|r||ƒ}|sq| j|ƒs*P | j jƒ  qW | jƒ S )z2Edit in the widget window and collect the results.)r   Zgetchr#   r!   r*   )r   Zvalidater   r   r   r	   Úedit±   s    

zTextbox.edit)F)N)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r   r   r   r   r#   r*   r+   r   r   r   r	   r      s   
Ar   Ú__main__c             C   sf   d\}}d	\}}| j |d |dƒ tj||||ƒ}t| |d |d || || ƒ | jƒ  t|ƒjƒ S )
Né	   é   é   é   é   zUse Ctrl-G to end editing.r   )r1   r2   )r3   r4   )Zaddstrr   Znewwinr
   r!   r   r+   )ZstdscrZncolsZnlinesr   r   r   r   r   r	   Útest_editbox¿   s     r6   zContents of text box:)r/   r   Zcurses.asciir
   r   r,   r6   ÚwrapperÚstrÚprintÚreprr   r   r   r	   Ú<module>   s    ,	
