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Simple insults-based widget library
@author: Jp Calderone
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YieldFocusz,
Input focus manipulation exception
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�width�height�xoff�yoff�terminal�
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cursorHome' s z!BoundedTerminalWrapper.cursorHomec C s | j �|�S r )r �write)r �datar r r r# * � z BoundedTerminalWrapper.writeN)r r r r r r" r# r r r r r s
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Widget.filthyc C s | � � | �|||� d S r )r+ �draw�r r r r r r r �redraw= s z
Widget.redrawc C sB || j ks
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| jr || _ || _d| _| �|||� d S d S �NF)r r r( �renderr. r r r r- A s �z Widget.drawc C � d S r r r. r r r r1 H � z
Widget.renderc C r2 r r r! r r r �sizeHintK r3 zWidget.sizeHintc C sT |dkr | � |� d S |dkr| �� d S |tjv r"| �||� d S | �||� d S )N� � )� tabReceived�backspaceReceivedr �
FUNCTION_KEYS�functionKeyReceived�characterReceived�r �keyID�modifierr r r �keystrokeReceivedN s
zWidget.keystrokeReceivedc C � t � �r �r �r r> r r r r7 X � zWidget.tabReceivedc C s d| _ | �� dS )z�
Called when focus is being given to this widget.
May raise YieldFocus is this widget does not want focus.
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focusReceived\ s zWidget.focusReceivedc C s d| _ | �� d S r0 rD r! r r r � focusLoste � zWidget.focusLostc C r2 r r r! r r r r8 i r3 zWidget.backspaceReceivedc C s@ |}t |t�s |�d�}t| d| d �}|d ur ||� d S d S )N�utf-8�func_)�
isinstance�str�decode�getattr)r r= r> �name�funcr r r r: l s
�zWidget.functionKeyReceivedc C r2 r r r< r r r r; t r3 zWidget.characterReceived)r r r rE r) r( r r r* r+ r/ r- r1 r4 r? r7 rF rG r8 r: r; r r r r r& . s$
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@ivar focusedChild: The contained widget which currently has
focus, or None.
NFc C s t �| � g | _d S r )r& r �childrenr! r r r r � �
zContainerWidget.__init__c C sb |j d u sJ �| |_ | j�|� | jd u r+| jr+z|�� W n ty' Y nw || _| �� d S r )r) rR �append� focusedChildrE rF r r* �r �childr r r �addChild� s � zContainerWidget.addChildc C s, |j | u sJ �d |_ | j�|� | �� d S r )r) rR �remover* rV r r r �remChild� s zContainerWidget.remChildc C s" | j D ]}|�� qt�| � d S r )rR r+ r& )r �chr r r r+ � s
zContainerWidget.filthyc C s | j D ] }|�|||� qd S r )rR r- )r r r r r[ r r r r1 � s
�zContainerWidget.renderc C s� | � � | jd ur)| j�� | j}d | _z
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ValueErrorr �lenrF )r rU �curFocusr r r � changeFocus� s*
� � � zContainerWidget.changeFocusc C s | � � d| _d S r' )ra rE r! r r r rF � s
z ContainerWidget.focusReceivedc C sV | j d ur"z
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�z!ContainerWidget.keystrokeReceived)r r r r
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A top-level container object which provides focus wrap-around and paint
scheduling.
@ivar painter: A no-argument callable which will be invoked when this
widget needs to be redrawn.
@ivar scheduler: A one-argument callable which will be invoked with a
no-argument callable and should arrange for it to invoked at some point in
the near future. The no-argument callable will cause this widget and all
its children to be redrawn. It is typically beneficial for the no-argument
callable to be invoked at the end of handling for whatever event is
currently active; for example, it might make sense to call it at the end of
L{twisted.conch.insults.insults.ITerminalProtocol.keystrokeReceived}.
Note, however, that since calls to this may also be made in response to no
apparent event, arrangements should be made for the function to be called
even if an event handler such as C{keystrokeReceived} is not on the call
stack (eg, using
L{reactor.callLater<twisted.internet.interfaces.IReactorTime.callLater>}
with a short timeout).
Tc C � t �| � || _|| _d S r )rQ r �painter� scheduler)r rd re r r r r � �
zTopWindow.__init__Nc C s, | j d u rt� | _ | �| j� t�| � d S r )�
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t �| ||� W d S ty | �� Y d S w r )rQ r? r ra r< r r r r? � s
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S ) z�
Draw a rectangle
@type position: L{tuple}
@param position: A tuple of the (top, left) coordinates of the rectangle.
@type dimension: L{tuple}
@param dimension: A tuple of the (width, height) size of the rectangle.
� lr� � � kr\ r� r � m� jN) r r r� r� r r# rk r r� )r �position� dimensionr� r� r r rl r r r � rectangle� s"
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d� Z dS )�Borderc C s t �| � || _| | j_d S r )r& r � containeer) �r r� r r r r � s
zBorder.__init__c C �
| j �� S r )r� rF r! r r r rF � r, zBorder.focusReceivedc C r� r )r� rG r! r r r rG � r, zBorder.focusLostc C s | j �||�S r )r� r? r< r r r r? � � zBorder.keystrokeReceivedc C s` | j �� }|d u r d}|d d u rd }n|d d }|d d u r&d }||fS |d d }||fS )Nrs r r� r\ )r� r4 )r rv r r r r r r4 � s
�zBorder.sizeHintc C � | j �� t�| � d S r �r� r+ r& r! r r r r+ � �
z
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r r r r rF rG r? r4 r+ r1 r r r r r� � s r� c @ r )
�Buttonc C rc r )r& r �label�onPress)r r� r� r r r r rf zButton.__init__c C s t | j�dfS r� )r_ r� r! r r r r4 r� zButton.sizeHintc C s |dkr
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dd� Z dS )� TextInputc C s& t �| � || _|| _d| _d| _d S )N� r )r& r �onSubmit�maxwidth�buffer�cursor)r r� r� r r r r s
zTextInput.__init__c C s( |d | j � | _t| j�| _| �� d S r )r� r� r_ r� r* �r r r r r �setText s zTextInput.setTextc C s( | j dkr| j d8 _ | �� d S d S �Nr r\ )r� r* rB r r r �func_LEFT_ARROW" s
�zTextInput.func_LEFT_ARROWc C s. | j t| j�k r| j d7 _ | �� d S d S r� )r� r_ r� r* rB r r r �func_RIGHT_ARROW' s �zTextInput.func_RIGHT_ARROWc C sN | j dkr%| jd | j d � | j| j d � | _| j d8 _ | �� d S d S r� )r� r� r* r! r r r r8 , s
& �zTextInput.backspaceReceivedc C sl |dkr | � | j� d S t| j�| jk r4| jd | j� | | j| jd � | _| jd7 _| �� d S d S )Nr� r\ )r� r� r_ r� r� r* r< r r r r; 2 s "� �zTextInput.characterReceivedc C s | j d dfS r� )r� r! r r r r4 = r� zTextInput.sizeHintc C s� | � � }|�dd� | jrB|�|d | j� � t||| j| jd � p$d� |�|| jd d � � |�d| jt|� d � d S | jt|� }|�|d| � d S )Nr r\ r� � _)� _renderTextr rE r# r� r� r_ )r r r r � currentText�morer r r r1 @ s zTextInput.renderc C � | j S r )r� r! r r r r� L � zTextInput._renderTextN) r r r r r� r� r� r8 r; r4 r1 r� r r r r r� s r� c @ r� )�
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TextOutputr� Nc C rq r )r& r �size)r r� r r r r X rS zTextOutput.__init__c C r� r )r� r! r r r r4 \ r� zTextOutput.sizeHintc C s8 |� dd� | jd |� }|�|d|t|� � d S �Nr r� )r r r# r_ )r r r r r r r r r1 _ s zTextOutput.renderc C s || _ | �� d S r )r r* r� r r r r� d rH zTextOutput.setTextc C r@ r rA r! r r r rF h r� zTextOutput.focusReceivedr ) r r r r r r4 r1 r� rF r r r r r� U s
r� c @ s. e Zd Zed�\ZZdefdd�Zdd� ZdS )�TextOutputArear� Nc C s t �| |� || _d S r )r� r � longLines)r r� r� r r r r o s
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greedyWrap�bytes�encoderT �extendr_ r� r r# ) r r r r rl �
inputLines� outputLines�line� wrappedLines� wrappedLine�Lr r r r1 s s,
� �zTextOutputArea.render)r r r rk r� �TRUNCATEr r1 r r r r r� l s r� c @ sh e Zd ZdZdZedd� �Zejdd� �Zedd� �Zejdd� �ZdZ d Z
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zViewport.__init__c C r� r r� r! r r r r+ � r� zViewport.filthyc C s� | j �| j| j| j� t| jj| j| j| � �D ];\}}|�d|� d}t|| j | j | � �D ]\}\}}|| jj
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rB r r r r� � r% z#HorizontalScrollbar.func_LEFT_ARROWc C r r �r rB r r r r� � r% z$HorizontalScrollbar.func_RIGHT_ARROWu ◀u ▶� ░� ▓c C sd |� dd� |d }t|| j �}|| }| j| j| | j | j| | j }|�|�d�� d S )Nr rp rI ) r r{ r �_left�_bar�_slider�_rightr# r� )r r r r rl �before�after�mer r r r1 � s �����zHorizontalScrollbar.renderN) r r r r4 r� r� r r r r r1 r r r r r � � r c @ r
)�VerticalScrollbarc C r )N)r\ Nr r! r r r r4 � r3 zVerticalScrollbar.sizeHintc C r r r rB r r r �
func_UP_ARROW� r% z VerticalScrollbar.func_UP_ARROWc C r r r rB r r r �func_DOWN_ARROW� r% z!VerticalScrollbar.func_DOWN_ARROWu ▲u ▼r r c C s� |� dd� t| j|d �}|�| j�d�� td|d �D ]!}|� d|� ||d kr7|�| j�d�� q |�| j�d�� q |� d|d � |�| j �d�� d S )Nr r� rI r\ )
r r{ r r# �_upr� rk r r �_down)r r r r �knobr� r r r r1 s zVerticalScrollbar.renderN) r r r r4 r r r r! r r r1 r r r r r � r r c @ sX e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
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dd� Z dd� Z dS )� ScrolledAreaz�
A L{ScrolledArea} contains another widget wrapped in a viewport and
vertical and horizontal scrollbars for moving the viewport around.
c C sL t �| � t|�| _t| j�| _t| j�| _ | j| j| j fD ]}| |_
q d S r ) r& r r� � _viewportr � _horizScroll�_horizr � _vertScroll�_vertr) )r r� rx r r r r s
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