o
    ˷eK                     @   s   d dl mZmZmZ d dlmZ d dlmZmZ d dl	m
Z
 d dlmZ ddlmZmZ ddlmZmZmZmZ dd	lmZmZ dd
lmZmZmZ dgZdZG dd deZdS )    )DictListOptional)Point)FilterOrBool	to_filter)KeyBindingsBase
MouseEvent   )	ContainerScrollOffsets)AnyDimension	Dimensionsum_layout_dimensionsto_dimension)MouseHandlerMouseHandlers)CharScreenWritePositionScrollablePanei'  c                   @   s  e Zd ZdZdddeddddddf
dedee ded	ed
e	de
de
dededededdfddZdefddZdAddZde	defddZde	d
e	defddZdededed ed!ed"ee	 ddfd#d$Zd%ededefd&d'Zded(eded)e	ddf
d*d+Zded,eded)e	ddf
d-d.Zded(ededdfd/d0Zdefd1d2Zdee fd3d4Zded5 fd6d7Z d8e	d9e	d:ed;ee ddf
d<d=Z!ded>e	deddfd?d@Z"dS )Br   aK  
    Container widget that exposes a larger virtual screen to its content and
    displays it in a vertical scrollbale region.

    Typically this is wrapped in a large `HSplit` container. Make sure in that
    case to not specify a `height` dimension of the `HSplit`, so that it will
    scale according to the content.

    .. note::

        If you want to display a completion menu for widgets in this
        `ScrollablePane`, then it's still a good practice to use a
        `FloatContainer` with a `CompletionsMenu` in a `Float` at the top-level
        of the layout hierarchy, rather then nesting a `FloatContainer` in this
        `ScrollablePane`. (Otherwise, it's possible that the completion menu
        is clipped.)

    :param content: The content container.
    :param scrolloffset: Try to keep the cursor within this distance from the
        top/bottom (left/right offset is not used).
    :param keep_cursor_visible: When `True`, automatically scroll the pane so
        that the cursor (of the focused window) is always visible.
    :param keep_focused_window_visible: When `True`, automatically scroll th e
        pane so that the focused window is visible, or as much visible as
        possible if it doen't completely fit the screen.
    :param max_available_height: Always constraint the height to this amount
        for performance reasons.
    :param width: When given, use this width instead of looking at the children.
    :param height: When given, use this height instead of looking at the children.
    :param show_scrollbar: When `True` display a scrollbar on the right.
    NT^vcontentscroll_offsetskeep_cursor_visiblekeep_focused_window_visiblemax_available_heightwidthheightshow_scrollbardisplay_arrowsup_arrow_symboldown_arrow_symbolreturnc                 C   sh   || _ |p
tddd| _t|| _t|| _|| _|| _|| _t|| _	t|	| _
|
| _|| _d| _d S )Nr   )topbottomr   )r   r   r   r   r   r   r   r   r    r!   r"   r#   r$   vertical_scroll)selfr   r   r   r   r   r   r    r!   r"   r#   r$    r*   \/var/www/ideatree/venv/lib/python3.10/site-packages/prompt_toolkit/layout/scrollable_pane.py__init__4   s   




zScrollablePane.__init__c                 C   s   d| j dS )NzScrollablePane()r   r)   r*   r*   r+   __repr__P      zScrollablePane.__repr__c                 C   s   | j   d S N)r   resetr/   r*   r*   r+   r3   S   r1   zScrollablePane.resetmax_available_widthc                 C   s>   | j d ur
t| j S | j|}|  rttd|gS |S )Nr   )r   r   r   preferred_widthr!   r   r   exact)r)   r4   content_widthr*   r*   r+   r5   V   s   

zScrollablePane.preferred_widthc                 C   sB   | j d ur
t| j S |  r|d8 }| j|| j}td|jdS )Nr   r   )min	preferred)r    r   r!   r   preferred_heightr   r   r9   )r)   r   r   	dimensionr*   r*   r+   r:   d   s   

zScrollablePane.preferred_heightscreenmouse_handlerswrite_positionparent_styleerase_bgz_indexc                 C   s   |   }|r|jd }n|j}| j|| jj}	t|	|j}	t|	| j}	t	t
d|dd}
tdd||	d}t }| j|
||||| |
  ddlm} | jj}z|
j| }W n	 tyb   Y nw | |j|	||
j| | ||
|| | |||| |j}|j}t|j|| |_t|j||j |_| ||
| |
jrd|_|
j D ]6\}}d|j  kr|jk rn q| j |j!  kr|j| j  k rn qt"|j| |j!| | j  d	|j|< q|
j# D ]\}}| $t"|j| |j!| | j  d	||j#|< q|r| %||	| d
S d
S )z
        Render scrollable pane content.

        This works by rendering on an off-screen canvas, and copying over the
        visible region.
        r    )charstyle)default_charr   )xposyposr   r    )get_appTxyN)&r!   r   r   r:   r   r9   maxr    r8   r   r   r   r   write_to_screendraw_all_floatsprompt_toolkit.applicationrH   layoutcurrent_window"visible_windows_to_write_positionsKeyError_make_window_visiblecursor_positionsget_copy_over_screen_copy_over_mouse_handlersrG   rF   _copy_over_write_positionsshow_cursoritemsrJ   r(   rK   r   menu_positions_clip_point_to_visible_area_draw_scrollbar)r)   r<   r=   r>   r?   r@   rA   r!   virtual_widthvirtual_heighttemp_screentemp_write_positiontemp_mouse_handlersrH   focused_windowvisible_win_write_posrG   rF   windowpointr*   r*   r+   rM   s   s   



zScrollablePane.write_to_screenrg   c                 C   s   |j |jk r|j|jd}|j|jk r|j|jd}|j |j|j kr/|j|j|j d d}|j|j|j krD|j|j|j d d}|S )zV
        Ensure that the cursor and menu positions always are always reported
        )rJ   )rK   r   )rJ   rF   _replacerK   rG   r   r    )r)   rg   r>   r*   r*   r+   r]      s   z*ScrollablePane._clip_point_to_visible_areara   r_   c                 C   s   |j }|j}t|jD ];}|j|| j  }|j||  }	|j|| j  }
|j||  }t|D ]}|| |	|| < ||
v rE|
| ||| < q/qdS )zU
        Copy over visible screen content and "zero width escape sequences".
        N)rG   rF   ranger    data_bufferr(   zero_width_escapes)r)   r<   ra   r>   r_   rG   rF   rK   temp_rowrowtemp_zero_width_escapesrk   rJ   r*   r*   r+   rW      s    
z ScrollablePane._copy_over_screenrc   c                    s   |j |ji  dtdtf fdd}|j}|j}t|jD ](}||v rI||j  }	||  }
t|D ]}||	v rH||	| |
| < q8q!dS )z
        Copy over mouse handlers from virtual screen to real screen.

        Note: we take `virtual_width` because we don't want to copy over mouse
              handlers that we possibly have behind the scrollbar.
        handlerr%   c                    s4    vrdt ddf fdd}| <   S )z:Wrap mouse handler. Translate coordinates in `MouseEvent`.eventr%   Nc                    s@   t t| jj | jjj  d| j| j| jd} | d S )NrI   )position
event_typebutton	modifiers)	r
   r   rq   rJ   rK   r(   rr   rs   rt   )rp   	new_event)ro   r)   rF   rG   r*   r+   new_handler-  s   
	zYScrollablePane._copy_over_mouse_handlers.<locals>.wrap_mouse_handler.<locals>.new_handlerr	   )ro   rv   mouse_handler_wrappersr)   rF   rG   )ro   r+   wrap_mouse_handler)  s   zDScrollablePane._copy_over_mouse_handlers.<locals>.wrap_mouse_handlerN)rG   rF   r   r=   ri   r    r(   )r)   r=   rc   r>   r_   ry   mouse_handlers_dicttemp_mouse_handlers_dictrK   temp_mouse_row	mouse_rowrJ   r*   rw   r+   rX     s   z(ScrollablePane._copy_over_mouse_handlersc                 C   sP   |j }|j}|j D ]\}}t|j| |j | | j |j|jd|j|< qdS )z3
        Copy over window write positions.
        )rF   rG   r    r   N)rG   rF   rR   r[   r   r(   r    r   )r)   r<   ra   r>   rG   rF   win	write_posr*   r*   r+   rY   H  s   z)ScrollablePane._copy_over_write_positionsc                 C   
   | j  S r2   )r   is_modalr/   r*   r*   r+   r   [     
zScrollablePane.is_modalc                 C   r   r2   )r   get_key_bindingsr/   r*   r*   r+   r   ^  r   zScrollablePane.get_key_bindingsr   c                 C   s   | j gS r2   r.   r/   r*   r*   r+   get_childrena  s   zScrollablePane.get_childrenvisible_heightr`   re   cursor_positionc                 C   s   d}|| }|   r.|dur.| j}|j| d |j }|j|j }	t||}tdt||	}|  rX|j|krC|j	|j | }
|j	}n|j	}
|j	|j | }t||
}t||}||kr^|}| j
|krf|| _
| j
|k rp|| _
dS dS )a  
        Scroll the scrollable pane, so that this window becomes visible.

        :param visible_height: Height of this `ScrollablePane` that is rendered.
        :param virtual_height: Height of the virtual, temp screen.
        :param visible_win_write_pos: `WritePosition` of the nested window on the
            temp screen.
        :param cursor_position: The location of the cursor position of this
            window on the temp screen.
        r   Nr   )r   r   rK   r'   r&   rL   r8   r   r    rG   r(   )r)   r   r`   re   r   
min_scroll
max_scrolloffsetscpos_min_scrollcpos_max_scrollwindow_min_scrollwindow_max_scrollr*   r*   r+   rT   d  sF   






z#ScrollablePane._make_window_visiblecontent_heightc                    sZ  |j }|  }|r|d8 }z"|j t| }| jt| }tt|td||  t|| W n
 ty9   Y dS w dtdtf fdd}|j	|j
 d }	|j}
|j}|rdt| jd||
 |	< |
d7 }
d	}d
}d}d}t|D ],}d}||r||d s|}n|}n||d r|}n|}td|||
 |	< |
d7 }
qp|rt| jd||
 |	< dS dS )z
        Draw the scrollbar on the screen.

        Note: There is some code duplication with the `ScrollbarMargin`
              implementation.
           r   Nrm   r%   c                    s   |   ko  kS   S )z/True if we should display a button on this row.r*   )rm   scrollbar_heightscrollbar_topr*   r+   is_scroll_button  s   z8ScrollablePane._draw_scrollbar.<locals>.is_scroll_buttonzclass:scrollbar.arrowzclass:scrollbar.backgroundz*class:scrollbar.background,scrollbar.startzclass:scrollbar.buttonz$class:scrollbar.button,scrollbar.end rB   )r    r"   floatr(   intr8   rL   ZeroDivisionErrorboolrF   r   rG   rj   r   r#   ri   r$   )r)   r>   r   r<   window_heightr"   fraction_visiblefraction_abover   rF   rG   rj   scrollbar_backgroundscrollbar_background_startscrollbar_buttonscrollbar_button_endirD   r*   r   r+   r^     sV   

zScrollablePane._draw_scrollbar)r%   N)#__name__
__module____qualname____doc__MAX_AVAILABLE_HEIGHTr   r   r   r   r   r   strr,   r0   r3   r   r5   r:   r   r   r   r   rM   r   r]   rW   rX   rY   r   r   r   r   r   rT   r^   r*   r*   r*   r+   r      s    #	



v


3

BN)typingr   r   r   prompt_toolkit.data_structuresr   prompt_toolkit.filtersr   r   prompt_toolkit.key_bindingr   prompt_toolkit.mouse_eventsr
   
containersr   r   r;   r   r   r   r   r=   r   r   r<   r   r   r   __all__r   r   r*   r*   r*   r+   <module>   s    