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     f                 @   sV   d Z ddlZddlZdd ZG dd dZedkrRdd	 ZeeZe	d
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e dS )z:Simple textbox editing widget with Emacs-like keybindings.    Nc             C   s   |  |d |tj|| d  | ||d tj|| d  | ||d tj|| d  |  |d |tj|| d  | ||tj | ||tj | ||tj | ||tj	 dS )z^Draw a rectangle with corners at the provided upper-left
    and lower-right coordinates.
       N)
ZvlinecursesZ	ACS_VLINEZhlineZ	ACS_HLINEaddchZACS_ULCORNERZACS_URCORNERZACS_LRCORNERZACS_LLCORNER)winulyulxZlryZlrx r   3/opt/alt/python37/lib64/python3.7/curses/textpad.py	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 )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.   || _ || _|   d| _d | _|d d S )Nr   )r   insert_mode_update_max_yxstripspaceslastcmdZkeypad)selfr   r   r   r   r	   __init__+   s    zTextbox.__init__c             C   s&   | j  \}}|d | _|d | _d S )Nr   )r   Zgetmaxyxmaxymaxx)r   r   r   r   r   r	   r   3   s    
zTextbox._update_max_yxc             C   s\   |    | j}xHtj| j||tjjkrBt| j|d }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   asciir   inchZSPmin)r   yZlastr   r   r	   _end_of_line8   s    zTextbox._end_of_linec             C   s   |    | j \}}d }x|| jk s0|| jk r| jr@| j }y| j| W n tj	k
rf   Y nX | jrztj
|s|P |}| j \}}|d kr||f}qW |d k	r| jj|  d S )N)r   r   getyxr   r   r   r   r   r   errorr   isprintmove)r   chr   xZbackyxZoldchr   r   r	   _insert_printable_charF   s$    
zTextbox._insert_printable_charc             C   sV  |    | j \}}|| _tj|rJ|| jk s<|| jk rF| 	| n|tjj
krh| j|d n|tjjtjtjjtjfkr|dkr| j||d  nB|dkrn8| jr| j|d | |d  n| j|d | j |tjjtjfkrR| j  nL|tjjkr"| j  n0|tjjkrb| jrN| j|| | n| j|| j n|tjjtjfkr|| jk r| j||d  n || jkrn| j|d d n|tjjkrdS |tjjkr| jdkrdS || jk rR| j|d d nF|tjjkrZ|dkr@| |dkr@| j  n| j|| | j  n|tjjkrt| j  n|tjjtjfkr|| jk rR| j|d | || |d krR| j|d | |d  nz|tjj kr| j!  n`|tjj"tj#fkrR|dkrR| j|d | || |d krR| j|d | |d  dS )z!Process a single editing command.r   r   )$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BELNLZVTZdeletelnZclrtoeolZFFrefreshZSOZKEY_DOWNZSIZinsertlnZDLEZKEY_UP)r   r   r   r   r   r   r	   
do_command_   sr    
zTextbox.do_commandc          
   C   s   d}|    xt| jd D ]}| j|d | |}|dkrH| jrHqxDt| jd D ]2}| jrl||krlP |tt	j

| j|| }qXW | jdkr|d }qW |S )z.Collect and return the contents of the window. r   r   
)r   ranger   r   r   r   r   r   chrr   r   r   )r   resultr   stopr   r   r   r	   gather   s    
"
zTextbox.gatherNc             C   s@   x6| j  }|r||}|sq| |s*P | j   qW |  S )z2Edit in the widget window and collect the results.)r   Zgetchr"   r!   r)   )r   Zvalidater   r   r   r	   edit   s    

zTextbox.edit)F)N)__name__
__module____qualname____doc__r   r   r   r   r"   r)   r*   r   r   r   r	   r      s   
Ar   __main__c             C   sf   d\}}d\}}|  |d |d t||||}t| |d |d || ||  |   t| S )N)	      )         zUse Ctrl-G to end editing.r   )Zaddstrr   Znewwinr
   r!   r   r*   )ZstdscrZncolsZnlinesr   r   r   r   r   r	   test_editbox   s     r5   zContents of text box:)r.   r   Zcurses.asciir
   r   r+   r5   wrapperstrprintreprr   r   r   r	   <module>   s    ,	
