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a d�h@K � @ s� d dl mZ d dlmZ d dlmZmZ d dlmZ d dl m Z ddl m Z m Z ddlmZmZmZmZ dd lmZmZ dd lmZmZmZ d gZd ZG d d � d e �Z dS )� )� annotations)�Point)� FilterOrBool� to_filter)�KeyBindingsBase)� MouseEvent� )� Container� ScrollOffsets)� AnyDimension� Dimension�sum_layout_dimensions� to_dimension)� MouseHandler� MouseHandlers)�Char�Screen� WritePosition�ScrollablePanei' c @ sH e Zd ZdZdddeddddddf ddddd d d ddd d d d � dd�Zd d�dd�Zd d�dd�Zd dd�dd�Zd d dd�dd�Z d d d d d d d d!�d"d#�Z d$d d$d%�d&d'�Z d d d d d d(�d)d*�Z d d d d d d+�d,d-�Z d d d d d.�d/d0�Zd d�d1d2�Zd3d�d4d5�Zd6d�d7d8�Zd d d d9d d:�d;d<�Zd d d d d=�d>d?�ZdS )@r 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 the pane so that the focused window is visible, or as much visible as possible if it doesn'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�^�vr zScrollOffsets | Noner �intr �str�None) �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 || _ |ptddd�| _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* ��/root/rpmbuild/BUILDROOT/imh-python39-modules-3.9.7-92.el8.x86_64/opt/imh-python/lib/python3.9/site-packages/prompt_toolkit/layout/scrollable_pane.py�__init__4 s zScrollablePane.__init__)r% c C s d| j �d�S )NzScrollablePane(�)�r �r) r* r* r+ �__repr__P s zScrollablePane.__repr__c C s | j �� d S �N)r �resetr/ r* r* r+ r2 S s zScrollablePane.resetr )�max_available_widthr% c C s> | j d urt| j �S | j�|�}| �� r:tt�d�|g�S |S )Nr )r r r �preferred_widthr! r r �exact)r) r3 Z content_widthr* r* r+ r4 V s z ScrollablePane.preferred_width)r r r% c C sB | j d urt| j �S | �� r$|d8 }| j�|| j�}td|jd�S )Nr r )�min� preferred)r r r! r �preferred_heightr r r7 )r) r r � dimensionr* r* r+ r8 d s z ScrollablePane.preferred_heightr r r �boolz int | None)�screen�mouse_handlers�write_position� parent_style�erase_bg�z_indexr% c C s2 | � � }|r|jd }n|j}| j�|| j�j} t| |j�} t| | j�} t t d|d�d�} |j | _ t dd|| d�} t � } | j�| | | |||� | �� ddlm} | � jj}z| j| }W n ty� Y n 0 | �|j| || j�|�� | �|| ||� | �|| ||� |j}|j }t|j|| �|_t|j||j �|_| � || |� | j �rVd|_ | j� � D ]v\}}d|j k�r�|jk �r`n nL| j |j! k�r�|j| j k �r`n n$t"|j | |j!| | j d �|j|< �q`| j#� � D ]6\}}| �$t"|j | |j!| | j d �|�|j#|< �q�|�r.| �%|| |� 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)Z default_charr )�xpos�yposr r )�get_appT��x�yN)&r! r r r8 r r7 �maxr r6 r r � show_cursorr r �write_to_screenZdraw_all_floatsZprompt_toolkit.applicationrF ZlayoutZcurrent_window�"visible_windows_to_write_positions�KeyError�_make_window_visibleZcursor_positions�get�_copy_over_screen�_copy_over_mouse_handlersrE rD �_copy_over_write_positions�itemsrH r( rI r Zmenu_positions�_clip_point_to_visible_area�_draw_scrollbar)r) r; r< r= r> r? r@ r! � virtual_width�virtual_height� temp_screenZtemp_write_position�temp_mouse_handlersrF Zfocused_window�visible_win_write_posrE rD Zwindow�pointr* r* r+ rL s s� � �� � ��� � � � � ��z ScrollablePane.write_to_screenr )r\ r= r% c C s� |j |jk r|j|jd�}|j|jk r4|j|jd�}|j |j|j kr^|j|j|j d d�}|j|j|j kr�|j|j|j d d�}|S )zV Ensure that the cursor and menu positions always are always reported )rH )rI r )rH rD �_replacerI rE r r )r) r\ r= r* r* r+ rU � s z*ScrollablePane._clip_point_to_visible_area)r; rY r= rW r% c C s� |j }|j}t|j�D ]v}|j|| j }|j|| } |j|| j } |j|| } t|�D ],} || | | | < | | v r^| | | | | < q^qdS )zU Copy over visible screen content and "zero width escape sequences". N)rE rD �ranger � data_bufferr( �zero_width_escapes) r) r; rY r= rW rE rD rI Ztemp_row�rowZtemp_zero_width_escapesr` rH r* r* r+ rQ � s � z ScrollablePane._copy_over_screen)r< rZ r= rW r% c s� |j �|j�i � ddd�� ���fdd� }|j}|j}t|j�D ]P}||v r@||�j } ||� } t|�D ] } | | v rn|| | �| | � < qnq@dS )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. r )�handlerr% c s2 � �vr*ddd�� ���fdd� }|�� < �� S )z:Wrap mouse handler. Translate coordinates in `MouseEvent`.r r )�eventr% c s@ t t| jj� | jj�j � d�| j| j| jd�}� |� d S )NrG )�position� event_type�button� modifiers) r r rd rH rI r( re rf rg )rc Z new_event)rb r) rD rE r* r+ � new_handler. s �� zYScrollablePane._copy_over_mouse_handlers.<locals>.wrap_mouse_handler.<locals>.new_handlerr* )rb rh �Zmouse_handler_wrappersr) rD rE )rb r+ �wrap_mouse_handler* s zDScrollablePane._copy_over_mouse_handlers.<locals>.wrap_mouse_handlerN)rE rD r< r^ r r( ) r) r< rZ r= rW rj Zmouse_handlers_dictZtemp_mouse_handlers_dictrI Ztemp_mouse_rowZ mouse_rowrH r* ri r+ rR s z(ScrollablePane._copy_over_mouse_handlers)r; rY r= r% c C sP |j }|j}|j�� D ]4\}}t|j| |j | | j |j|jd�|j|< qdS )z3 Copy over window write positions. )rD rE r r N)rE rD rM rT r r( r r )r) r; rY r= rE rD �winZ write_posr* r* r+ rS I s �z)ScrollablePane._copy_over_write_positionsc C s | j �� S r1 )r �is_modalr/ r* r* r+ rl \ s zScrollablePane.is_modalzKeyBindingsBase | Nonec C s | j �� S r1 )r �get_key_bindingsr/ r* r* r+ rm _ s z ScrollablePane.get_key_bindingszlist[Container]c C s | j gS r1 r. r/ r* r* r+ � get_childrenb s zScrollablePane.get_childrenz Point | None)�visible_heightrX r[ �cursor_positionr% c C s� d}|| }| � � r\|dur\| j}|j| d |j }|j|j } t||�}tdt|| ��}| �� r�|j|kr�|j |j | } |j } n|j } |j |j | } t|| �}t|| �}||kr�|}| j |kr�|| _ | j |k r�|| _ dS )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 rI r' r& rJ r6 r r rE r( ) r) ro rX r[ rp Z min_scrollZ max_scroll�offsetsZcpos_min_scrollZcpos_max_scrollZwindow_min_scrollZwindow_max_scrollr* r* r+ rO e sD � ������ z#ScrollablePane._make_window_visible)r= �content_heightr; r% c s\ |j }| �� }|r|d8 }zD|j t|� }| jt|� }tt|td|| ���� t|| ��W n tyr Y dS 0 ddd�� �fdd� }|j|j d } |j } |j } |r�t | j d �| | | < | d7 } d } d } d }d }t|�D ]^}d}||��r ||d ��s|}n|}n||d ��r | }n| }t d|�| | | < | d7 } q�|�rXt | jd �| | | < dS )z� Draw the scrollbar on the screen. Note: There is some code duplication with the `ScrollbarMargin` implementation. � r Nr r: )ra r% c s �| ko�� kS S )z/True if we should display a button on this row.r* )ra �Zscrollbar_heightZ scrollbar_topr* r+ �is_scroll_button� s z8ScrollablePane._draw_scrollbar.<locals>.is_scroll_buttonzclass:scrollbar.arrowzclass:scrollbar.backgroundz*class:scrollbar.background,scrollbar.startzclass:scrollbar.buttonz$class:scrollbar.button,scrollbar.end� rA )r r" �floatr( r r6 rJ �ZeroDivisionErrorrD r rE r_ r r# r^ r$ )r) r= rr r; Z window_heightr" Zfraction_visibleZfraction_aboveru rD rE r_ Zscrollbar_backgroundZscrollbar_background_startZscrollbar_buttonZscrollbar_button_end�irC r* rt r+ rV � sR � � �z ScrollablePane._draw_scrollbar)�__name__� __module__� __qualname__�__doc__�MAX_AVAILABLE_HEIGHTr, r0 r2 r4 r8 rL rU rQ rR rS rl rm rn rO rV r* r* r* r+ r s4 #�& w3BN) � __future__r Z prompt_toolkit.data_structuresr Zprompt_toolkit.filtersr r Zprompt_toolkit.key_bindingr Zprompt_toolkit.mouse_eventsr � containersr r r9 r r r r r< r r r; r r r �__all__r~ r r* r* r* r+ �<module> s
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