Edit File: _propertyhelper.cpython-36.pyc
3 ��<_�: � @ s� d dl Z d dlZddlmZ ddlmZmZmZmZm Z m Z m Z m Z m Z mZmZmZmZmZmZmZmZmZmZmZmZmZmZm Z ej Z ej Z ej Z ej Z ej!Z!ej"Z"ej#Z#ej$Z$e j%d kr�e&Z'e(Z)ne*Z'e+Z)G dd� de,�Z-dd � Z.dS ) � N� )�_gi)� TYPE_NONE�TYPE_INTERFACE� TYPE_CHAR� TYPE_UCHAR� TYPE_BOOLEAN�TYPE_INT� TYPE_UINT� TYPE_LONG� TYPE_ULONG� TYPE_INT64� TYPE_UINT64� TYPE_ENUM� TYPE_FLAGS� TYPE_FLOAT� TYPE_DOUBLE� TYPE_STRING� TYPE_POINTER� TYPE_BOXED� TYPE_PARAM� TYPE_OBJECT� TYPE_PYOBJECT� TYPE_GTYPE� TYPE_STRV� TYPE_VARIANT� c @ sN e Zd ZdZeeeeee e e e e eeiZedededee e e eeeeed/iZeeee ed1ed3eee eee ee iZ edededededede dede di Z G d d � d e!�Z"d d d d dde#j$d d f d d �Z%dd� Z&dd� Z'dd� Z(dd� Z)dd� Z*dd� Z+dd� Z,d d � Z-d d � Z.d d!� Z/d"d#� Z0d$d%� Z1d&d'� Z2d(d)� Z3d*d+� Z4d,d-� Z5d S )4�Propertya� Creates a new Property which when used in conjunction with GObject subclass will create a Python property accessor for the GObject ParamSpec. :param callable getter: getter to get the value of the property :param callable setter: setter to set the value of the property :param type type: type of property :param default: default value, must match the property type. :param str nick: short description :param str blurb: long description :param GObject.ParamFlags flags: parameter flags :keyword minimum: minimum allowed value (int, float, long only) :keyword maximum: maximum allowed value (int, float, long only) .. code-block:: python class MyObject(GObject.Object): prop = GObject.Property(type=str) obj = MyObject() obj.prop = 'value' obj.prop # now is 'value' The API is similar to the builtin :py:func:`property`: .. code-block:: python class AnotherObject(GObject.Object): value = 0 @GObject.Property def prop(self): 'Read only property.' return 1 @GObject.Property(type=int) def propInt(self): 'Read-write integer property.' return self.value @propInt.setter def propInt(self, value): self.value = value r � �? r �@ � g c @ s e Zd Zdd� ZdS )zProperty.__metaclass__c C s dS )Nz<class 'GObject.Property'>� )�selfr" r" �'/usr/lib64/python3.6/_propertyhelper.py�__repr__� s z Property.__metaclass__.__repr__N)�__name__� __module__� __qualname__r% r" r" r" r$ � __metaclass__� s r) Nc C s< d | _ |d krt}| j|�| _| j|�| _| j� t|t�sDt d��|| _ t|t�s\t d��|| _ || _ || _ |r�| r�| j}n*|r�| r�| j}n| r�| r�| j}| j}| j|� || _|d k r�|| j� k r�t d| j| j� f ��n| j� }|| _| d k �r$| | j� k�r,t d| j| j� f ��n| j� } | | _d | _d S )Nznick must be a stringzblurb must be a stringz+Minimum for type %s cannot be lower than %dz,Maximum for type %s cannot be higher than %d)�name�object�_type_from_python�type� _get_default�default�_check_default� isinstance� _basestring� TypeError�nick�blurb�__doc__�flags�_readonly_setter�_writeonly_getter�_default_getter�_default_setter�getter�fset� _get_minimum�minimum� _get_maximum�maximum�_exc) r# r< �setterr- r/ r4 r5 r7 r? rA r" r" r$ �__init__� sL zProperty.__init__c C s d| j p dtj| j�f S )Nz<GObject Property %s (%s)>z(uninitialized))r* r Z type_namer- )r# r" r" r$ r% � s zProperty.__repr__c C s\ |d kr | S d | _ y| j|�}W n tk r@ tj� d }Y nX | j rX| j }d | _ |�|S )N)rB �fget� Exception� traceback� print_exc)r# �instance�klass�value�excr" r" r$ �__get__� s zProperty.__get__c C s: |d kr t �d | _|j| j|� | jr6| j}d | _|�d S )N)r3 rB Z set_propertyr* )r# rI rK rL r" r" r$ �__set__� s zProperty.__set__c C s | j |�S )z;Allows application of the getter along with init arguments.)r< )r# rE r" r" r$ �__call__� s zProperty.__call__c C s |j r|j | _|j | _ || _| S )z8Set the getter function to fget. For use as a decorator.)r6 r5 rE )r# rE r" r" r$ r< � s zProperty.getterc C s || _ | js| jj| _| S )z8Set the setter function to fset. For use as a decorator.)r= r* rE r& )r# r= r" r" r$ rC s zProperty.setterc C s� || j kr| j | S t|t�rBt|tjtjtjtjtj f�rB|j S |t t t ttttttttttttttt t t t t fkrz|S t!d|f ��d S )NzUnsupported type: %r)"�_type_from_pytype_lookupr1 r- � issubclassr ZGObjectZGEnumZGFlagsZGBoxedZ GInterface� __gtype__r r r r r r r r r r r r r r r r r r r r r r r3 )r# Ztype_r" r" r$ r, s" zProperty._type_from_pythonc C s |d k r |S | j j| jd �S )N)�_default_lookup�getr- )r# r/ r" r" r$ r. & s zProperty._get_defaultc C s| | j }| j}|tkr.|d kr.td|f ���nJ|tkrJ|d k rFtd���n.|tkrf|d k rbtd���ntj|t�r�|d kr�td��n tj||�s�td||f ��n�tj|t �r�tj||�s�td||f ��n�tj|t �o�|d k �r2t |t �� s�td t |� ��xx|D ](}t |�ttfk�rtd t|� ���qW nFtj|t��rx|d k �rxt|d � �shtj|t� �rxtd ||f ��d S )NTFz%default must be True or False, not %rz)object types does not have default valuesz(GType types does not have default valuesz%enum properties needs a default valuez'enum value %s must be an instance of %rz(flags value %s must be an instance of %rz Strv value %s must be a listz'Strv value %s must contain only stringsrR z*variant value %s must be an instance of %r)TF)r- r/ r r3 r r r Z type_is_ar r r r1 �list�repr�str�bytesr �hasattr)r# �ptyper/ �valr" r" r$ r0 + s> zProperty._check_defaultc C s | j j| jd �S )N)�_min_value_lookuprT r- )r# r" r" r$ r> L s zProperty._get_minimumc C s | j j| jd �S )N)�_max_value_lookuprT r- )r# r" r" r$ r@ O s zProperty._get_maximumc C s t |d| j |� d S )N�_property_helper_)�setattrr* )r# rI rK r" r" r$ r; V s zProperty._default_setterc C s t |d| j | j�S )Nr^ )�getattrr* r/ )r# rI r" r" r$ r: Y s zProperty._default_getterc C s t d| jt|�jf �| _d S )Nz %s property of %s is read-only)r3 r* r- r& rB )r# rI rK r" r" r$ r8 \ s zProperty._readonly_setterc C s t d| jt|�jf �| _d S )Nz %s property of %s is write-only)r3 r* r- r& rB )r# rI r" r" r$ r9 ` s zProperty._writeonly_getterc C s� | j }|ttttttttfkr0| j | j | j f}nl|t ks^|t ks^|jt�s^|jt�s^|jt�rh| j f}n4|ttfkrzf }n"|jt�s�|jt�r�f }nt|��| j | j| jf| | jf S )N)r- r r r r r r r r r? rA r/ r r Zis_ar r r r r r r �NotImplementedErrorr4 r5 r7 )r# rZ �argsr" r" r$ �get_pspec_argsh s zProperty.get_pspec_argsl l���� l l ���� l l ���� )6r& r' r( r6 �_longr �intr �boolr �floatr rW r r+ r rP r r r r � G_MAXFLOAT� G_MAXDOUBLE�G_MININT� G_MINLONGr r\ � G_MAXUINT� G_MAXULONG�G_MAXINT� G_MAXLONGr] rS r- r) r ZPARAM_READWRITErD r% rM rN rO r< rC r, r. r0 r> r@ r; r: r8 r9 rc r" r" r" r$ r 2 sh 66 !r c s � j jdi �}g }xp� j j� D ]b\}}t|t�r |js<||_|j|krh||j |j� krZq td|j ��|j� ||j< |j|� q W |s�dS |� _ d� j ks�d� j kr�x4|D ],}|j |j ks�|j |j kr�td� jf ��q�W dd� }|� _� fd d �}|� _dS ) z� Scans the given class for instances of Property and merges them into the classes __gproperties__ dict if it exists or adds it if not. �__gproperties__z0Property %s was already found in __gproperties__N�do_get_property�do_set_propertyzGObject subclass %r defines do_get/set_property and it also uses a property with a custom setter or getter. This is not allowedc S s |j jdd�}t| |d �S )N�-�_)r* �replacer` )r# �pspecr* r" r" r$ �obj_get_property� s z,install_properties.<locals>.obj_get_propertyc s. |j jdd�}t� |d �}|r*|j| |� d S )Nrs rt )r* ru r` r= )r# rv rK r* �prop)�clsr" r$ �obj_set_property� s z,install_properties.<locals>.obj_set_property)�__dict__rT �itemsr1 r r* rc � ValueError�appendrp rE r: r= r; r3 r& rq rr )ry Z gpropertiesZpropsr* rx rw rz r" )ry r$ �install_properties{ s2 r )r r )/�sysrG r! r Z _constantsr r r r r r r r r r r r r r r r r r r r r r r r rh ri rj rn rl rk ro rm � version_inforW r2 re rd Z basestringZlongr+ r r r" r" r" r$ �<module> s( h K
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