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Code Editor : sane.cpython-310.pyc
o �/�aR � @ s d dl Z d dlZd dlZd dlT d dlmZ d dlmZ d dlm Z e� d�Z dZ e j de jd e jd e jd e jd e jd iZe jde jde jde jde jde jde jdiZdZ G dd� d�Z G dd� d�Z G dd� de j �Z d d � Z!d d � Z"d d!� Z#d&d"d#�Z$d$d%� Z%dS )'� N)�*)�utils�� to_bytes_utf8)�queue�scanext� � TYPE_BOOL�TYPE_INT� TYPE_FIXED� TYPE_STRING� TYPE_BUTTON� TYPE_GROUP� UNIT_NONE� UNIT_PIXEL�UNIT_BIT�UNIT_MM�UNIT_DPI� UNIT_PERCENT�UNIT_MICROSECONDi c @ s8 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd S ) �OptionaN Class representing a SANE option. Attributes: index -- number from 0 to n, giving the option number name -- a string uniquely identifying the option title -- single-line string containing a title for the option desc -- a long string describing the option; useful as a help message type -- type of this option. Possible values: TYPE_BOOL, TYPE_INT, TYPE_STRING, and so forth. unit -- units of this option. Possible values: UNIT_NONE, UNIT_PIXEL, etc. size -- size of the value in bytes cap -- capabilities available; CAP_EMULATED, CAP_SOFT_SELECT, etc. constraint -- constraint on values. Possible values: None : No constraint (min,max,step) Integer values, from min to max, stepping by list of integers or strings: only the listed values are allowed c C s\ dd l }|| _|\ | _| _| _| _| _| _| _| _ | _ t| j�td�kr,t | j�| _d S d S )Nr � ) �string� cur_device�index�name�title�desc�type�unit�size�cap� constraint�str)�self�argsr r � r& � /usr/share/hplip/scan/sane.py�__init__i s ��zOption.__init__c C � t �| j�S �N)r �isOptionActiver! �r$ r& r& r' �isActives � zOption.isActivec C r) r* )r �isOptionSettabler! r, r& r& r' � isSettablev r. zOption.isSettablec C sh | � � rd}nd}| �� rd}| j�| j�}nd}d}d| j|| j| j| jt| j t | j | j ||f S )N�yes�noz <not available, inactive option>z� Name: %s Cur value: %s Index: %d Title: %s Desc: %s Type: %s Unit: %s Constr: %s isActive: %s isSettable: %s )r0 r- r � getOptionr r r r �TYPE_STRr �UNIT_STRr r" �s)r$ �settable�active�curValuer& r& r' �__repr__y s ��zOption.__repr__c C s@ |d ur�| j d ur�t| j �td�krO|| j d k r,| j d }t�d| j| j||f � n|| j d krE| j d }t�d| j| j||f � | j�| j|� |S t| j �tg �kr�|| j vr�| j d }tj}| j D ]}t || �|k rzt || �}|}qht�d| j| j|d� | j �|f � | j�| j|� |S | j� | j�}|S )Nr& r z6Invalid value for %s (%s < min value of %d). Using %d.r z6Invalid value for %s (%s > max value of %d). Using %d.z?Invalid value for %s (%s not in constraint list: %s). Using %d.z, ) r" r �log�warnr r � setOption�sys�maxsize�abs�joinr3 )r$ �value�v�min_dist�xr& r& r' � limitAndSet� s< � �� ���zOption.limitAndSetN) �__name__� __module__� __qualname__�__doc__r( r- r0 r: rF r& r& r& r' r V s r c @ s� e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z d"dd�Z dd� Z dd� Z dd� Zdd� Zd d � Zd d � Zd d!� ZdS )#� ScanDevicea Class representing a SANE device. Methods: startScan() -- initiate a scan, using the current settings cancelScan() -- cancel an in-progress scanning operation Also available, but rather low-level: getParameters() -- get the current parameter settings of the device getOptions() -- return a list of tuples describing all the options. Attributes: optlist -- list of option names You can also access an option name to retrieve its value, and to set it. For example, if one option has a .name attribute of imagemode, and scanner is a ScanDevice object, you can do: print scanner.imagemode scanner.imagemode = 'Full frame' scanner.['imagemode'] returns the corresponding Option object. c C s$ d | _ t�|�| _i | _| �� d S r* )� scan_threadr � openDevice�dev�options� _ScanDevice__load_options_dict)r$ rN r& r& r' r( � s zScanDevice.__init__c C s> | j }| j�� }|D ]}t|| �}|jtjkr |||j< q d S r* )rO rN � getOptionsr r r r r )r$ �opts�opt_list�t�or& r& r' �__load_options_dict� s ��z ScanDevice.__load_options_dictc C s� | j }||vr |||< d S || }|jtjkr t�d| � t�|j�s+t�d| � t�|j�s8t�d| � t|�t krH|jtj krHt |�}z | j � |j|�| _W n tjyg t�d||f � Y d S w | jtj@ rt| �� d S d S )NzGroups can't be set: %s�Inactive option: %sz#Option can't be set by software: %sz#Unable to set option %s to value %s)rO r r r r; �errorr+ r! r/ �intr �floatrN r= r �last_opt�INFO_RELOAD_OPTIONSrP )r$ �keyrB rR �optr& r& r' r= � s, � �zScanDevice.setOptionc C s� | j }|dkr t|�� �S |dkr!|d |d f|d |d ffS ||vr+td| ��|| }|jtjkr;td| ��|jtjkrGtd | ��t�|j �sStd | ��| j � |j �S ) N�optlist�areaztl-xztl-yzbr-xzbr-yzNo such attribute: %sz Buttons don't have values: %sz Groups don't have values: %s rW ) rO �list�keys�AttributeErrorr r r r r+ r! rN r3 r )r$ r] rR r^ r& r& r' r3 s zScanDevice.getOptionc C s | j }||v r || S d S r* )rO )r$ r] rR r& r& r' � getOptionObj5 s �zScanDevice.getOptionObjc C � | j �� S )a? Return a 6-tuple holding all the current device settings: (format, format_name, last_frame, (pixels_per_line, lines), depth, bytes_per_line) - format is the SANE frame type - format is one of 'grey', 'color' (RGB), 'red', 'green', 'blue'. - last_frame [bool] indicates if this is the last frame of a multi frame image - (pixels_per_line, lines) specifies the size of the scanned image (x,y) - lines denotes the number of scanlines per frame - depth gives number of pixels per sample )rN � getParametersr, r& r& r' rf ; s zScanDevice.getParametersc C re )z<Return a list of tuples describing all the available options)rN rQ r, r& r& r' rQ I � zScanDevice.getOptions�BGRANc C sz | � � s7| j�� }| j�� \| _| _| _| _| _| _ | _ t | j|||�| _ d| j _ | j �� d| j| j |fS ddtjfS )z] Perform a scan with the current device. Calls sane_start(). TFr )� isScanActiverN � startScanrf �format� format_name� last_frame�pixels_per_line�lines�depth�bytes_per_line� ScanThreadrL � scan_active�startr �SANE_STATUS_DEVICE_BUSY)r$ � byte_format� update_queue� event_queue�statusr& r& r' rj N s � zScanDevice.startScanc C re )z)Cancel an in-progress scanning operation.)rN � cancelScanr, r& r& r' rz a rg zScanDevice.cancelScanc C s> | � � s | j}|j|j|j|j|j|j|j|j |j |j f S dS )z6Get the output buffer and info about a completed scan.N) ri rL �bufferrk rl rn ro rp rq � pad_bytes� total_read� total_write�r$ r6 r& r& r' �getScanf s ��zScanDevice.getScanc C sH | � � s"| j}z|j�� t�|j� W dS ttfy! Y dS w dS )z-Cleanup the scan file after a completed scan.N) ri rL r{ �close�os�remove� buffer_path�IOErrorrc r r& r& r' �freeScano s ��zScanDevice.freeScanc C s | j d ur| j �� o | j jS dS )NF)rL �is_alivers r, r& r& r' ri { s zScanDevice.isScanActivec C sN | j d ur!| j �� r#| j jr%z| j �� W d S ty Y d S w d S d S d S r* )rL r� rs rA �KeyboardInterruptr, r& r& r' �waitForScanDone� s �� � �zScanDevice.waitForScanDonec C s2 | j d ur | j �� r| j jrd S t�d� qd S )NT皙�����?)rL r� rs �time�sleepr, r& r& r' �waitForScanActive� s � ��z ScanDevice.waitForScanActivec C s | j �� dS )z#Close the SANE device after a scan.N)rN � closeScanr, r& r& r' r� � s zScanDevice.closeScan�rh NN)rG rH rI rJ r( rP r= r3 rd rf rQ rj rz r� r� ri r� r� r� r& r& r& r' rK � s" ! rK c @ s. e Zd Zd dd�Zdd� Zdd� Zd d � ZdS ) rr rh Nc C s� t j�| � d| _|| _|| _|| _tjdd�\| _ | _ t � | j d�| _ d| _d| _d| _d| _d| _d| _d| _d| _d| _|| _d| _d S )NT�hpscan)�prefixzw+b���r r )� threading�Threadr( rs rN rw rx r �make_temp_file� buffer_fdr� r� �fdopenr{ rk rl rm rn ro rp rq r| r} rv r~ )r$ �devicerv rw rx r& r& r' r( � s$ zScanThread.__init__c C sJ | j d ur#zt|�}W n ttfy d}Y nw | j �||f� d S d S )Nr� )rw rY � ValueError� TypeError�put)r$ ry � bytes_readr& r& r' � updateQueue� s ��zScanThread.updateQueuec s� ddl m} | j�� \| _| _| _| _| _| _ | _ t � d| j � t � d| j � t � d| j � t � d| j � t � d| j � t � d| j � t � d | j � t � d | j � | jj}| j }| jtjk�r4| j d k�r2| j d | j | _t � d | j � d� | j dkr�d� z | j�|�\}�W n tjy� } z|jd }| �|d� W Y d }~nd }~ww |tjk�r2�r�t��}|d�� �fdd�td|| j d �D ��� | j|7 _| j ||| j d 7 _ | �|| j� t � d| j � nt � d� z | j�|�\}�W n tj�y& } z|jd }| �|| j� W Y d }~nd }~ww | � � �r-n|tjks��n�| jtj k�r�| j dk�r�| j | jd d | _t � d | j � z | j�|�\}�W n tj�y} } z|jd }| �|d� W Y d }~nd }~ww |tjk�r���r�t��}|d��fdd�td|| j �D ��� | j|7 _| j || j d 7 _ | �|| j� t � d| j � nt � d� z | j�|�\}�W n tj�y� } z|jd }| �|| j� W Y d }~nd }~ww | � � �r�n|tjk�s�n�| j d k�r�| j | j | _t � d | j � z | j�|�\}�W n tj�y= } z|jd }| �|d� W Y d }~nd }~ww |tjk�r���r�t��}|d��fdd�td|| j �D ��� | j|7 _| j || j d 7 _ | �|| j� t � d | j � nt � d� z | j�|�\}�W n tj�y� } z|jd }| �|| j� W Y d }~nd }~ww | � � �r�n|tjk�sD| j�!d� d | _"t � d � d S ) Nr r z format=%dzformat_name=%sz last_frame=%dzppl=%dzlines=%dzdepth=%dzbpl=%dzbyte_format=%s� � z pad_bytes=%dr� �RGBAr � c s" g | ] }�||d � � d �qS )r� � �r& ��.0r ��dirrT r& r' � <listcomp>� s " z"ScanThread.run.<locals>.<listcomp>zColor Read %d bytesr� � c s& g | ]� d � � �fdd�dD ���qS )r� c s, g | ]}|t �� � d � �@ rdnd�qS )r s �s ����)�ord)r� �k)r rT r& r' r� s , z-ScanThread.run.<locals>.<listcomp>.<listcomp>)� �@ � � r� � � r )rA )r� �rT )r r' r� s & r� zLineart Read %d bytesc s$ g | ]}d � ||d � d �qS )r� r r� r& r� r� r& r' r� + s $ r� zGray Read %d bytesFzScan thread exiting...)#� base.sixextr rN rf rk rl rm rn ro rp rq r; �debugrv r{ �writer � FRAME_RGBr| �readScanrX r% r� �SANE_STATUS_GOOD�lenrA �ranger} r~ r� r� � checkCancel� FRAME_GRAY�seekrs )r$ r �w� readbuffer�st�stObj�len_tr& r� r' �run� s� � �� , �� �� �� ( �� �� �� ( �� � zScanThread.runc C sd d}| j �� r0z| j �d�}|tkr d}t�d� | j�� W n tj y* Y |S w | j �� s|S )NFr TzCancel pressed!) rx �qsize�get�EVENT_SCAN_CANCELEDr; r� rN � canclScanr �Empty)r$ �canceled�eventr& r& r' r� D s �� � zScanThread.checkCancelr� )rG rH rI r( r� r� r� r& r& r& r' rr � s ~rr c C � t �� S r* )r �initr& r& r& r' r� V � r� c C r� r* )r �deInitr& r& r& r' r� Z r� r� c C s t | �S )zOpen a device for scanning)rK )rN r& r& r' rM ^ s rM c C s t �| �S r* )r � getDevices)� local_onlyr& r& r' r� c s r� c C s t �dt�| �| f � d S )NzSANE: %s (code=%d))r; rX r �getErrorMessage)�coder& r& r' � reportErrorg s r� )r )&r� r� r� �base.g�baser r� r �base.sixext.movesr � import_extr r� r r r r r r r4 r r r r r r r r5 � MAX_READSIZEr rK r� rr r� r� rM r� r� r& r& r& r' �<module> s@ 8 �� } S 2
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