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generictreemodel.pyc
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� � Zc @ s� d d l Z d d l Z d d l Z d d l Z d d l m Z d d l m Z d e j f d � � YZ d � Z d � Z d e j e j f d � � YZ d S( i����N( t GObject( t Gtkt _CTreeIterc B sM e Z d e j f d e j f d e j f d e j f g Z e d � � Z RS( t stampt user_datat user_data2t user_data3c C s2 t j t � � } t j | � j t | � | � S( N( t syst getsizeoft objectt ctypest POINTERt from_addresst id( t clst itert offset( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt from_iter& s ( t __name__t __module__R t c_intt c_void_pt _fields_t classmethodR ( ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyR s c C s+ t j | � } t j | j j t j � j S( N( R R R t castt contentsR t py_objectt value( R t citer( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt _get_user_data_as_pyobject, s c s � f d � } | S( s] Returns a function which can act as a decorator for wrapping exceptions and returning "default_return" upon an exception being thrown. This is used to wrap Gtk.TreeModel "do_" method implementations so we can return a proper value from the override upon an exception occurring with client code implemented by the "on_" methods. c s � � f d � } | S( Nc s2 y � | | � SWn t j t j � � n X� S( N( R t excepthookt exc_info( t argst kargs( t default_returnt func( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt wrapped_func: s ( ( R# R$ ( R" ( R# sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt decorator9 s ( ( R" R% ( ( R" sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt handle_exception1 s t GenericTreeModelc B sH e Z d Z e j d e d e d d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d, d � Z e d � d � � Z e d � d � � Z e e j � d � � Z e e d, f � d � � Z e e � d � � Z e d, � d � � Z e d, � d � � Z e e d, f � d � � Z e e � d � � Z e d � d � � Z e e d, f � d � � Z e e d, f � d � � Z! e d, � d � � Z" e d, � d � � Z# d � Z$ d � Z% d � Z& d! � Z' d" � Z( d# � Z) d$ � Z* d% � Z+ d& � Z, d' � Z- d( � Z. d) � Z/ d* � Z0 d+ � Z1 RS(- s A base implementation of a Gtk.TreeModel for python. The GenericTreeModel eases implementing the Gtk.TreeModel interface in Python. The class can be subclassed to provide a TreeModel implementation which works directly with Python objects instead of iterators. All of the on_* methods should be overridden by subclasses to provide the underlying implementation a way to access custom model data. For the purposes of this API, all custom model data supplied or handed back through the overridable API will use the argument names: node, parent, and child in regards to user data python objects. The create_tree_iter, set_user_data, invalidate_iters, iter_is_valid methods are available to help manage Gtk.TreeIter objects and their Python object references. GenericTreeModel manages a pool of user data nodes that have been used with iters. This pool stores a references to user data nodes as a dictionary value with the key being the integer id of the data. This id is what the Gtk.TreeIter objects use to reference data in the pool. References will be removed from the pool when the model is deleted or explicitly by using the optional "node" argument to the "row_deleted" method when notifying the model of row deletion. t defaultt typet blurbs� If True, strong references to user data attached to iters are stored in a dictionary pool (default). Otherwise the user data is stored as a raw pointer to a python object without a reference.c C s6 t t | � j � d | _ t � | _ | j � d S( sF Initialize. Make sure to call this from derived classes if overridden.i N( t superR' t __init__R t dictt _held_refst invalidate_iters( t self( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyR, g s c c s� t j d g � } xz | r� | j � } | d k rD | j | � Vn g t | j | � � D] } | j | | � ^ qZ } | j t | � � q Wd S( sH Depth-first iteration of the entire TreeModel yielding the python nodes.N( t collectionst dequet Nonet popleftt get_user_datat ranget iter_n_childrent iter_nth_childt extendleftt reversed( R0 t stackt itt it children( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt iter_depth_firstr s 4c C sD d | _ | j r@ | j | j k r4 | j | j =n d | _ n d S( s? Clear user data and its reference from the iter and this model.i N( R R R. R3 ( R0 R ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt invalidate_iter| s c C s& t j d d � | _ | j j � d S( s� This method invalidates all TreeIter objects associated with this custom tree model and frees their locally pooled references. i �i���N( t randomt randintR R. t clear( R0 ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyR/ � s c C s | j | j k S( sv :Returns: True if the gtk.TreeIter specified by iter is valid for the custom tree model. ( R ( R0 R ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt iter_is_valid� s c C s% | j r | j | j St | � Sd S( s� Get the user_data associated with the given TreeIter. GenericTreeModel stores arbitrary Python objects mapped to instances of Gtk.TreeIter. This method allows to retrieve the Python object held by the given iterator. N( t leak_referencesR. R R ( R0 R ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyR5 � s c C sW t | � | _ | d k r+ | j | � n( | j | _ | j rS | | j | j <n d S( s� Applies user_data and stamp to the given iter. If the models "leak_references" property is set, a reference to the user_data is stored with the model to ensure we don't run into bad memory problems with the TreeIter. N( R R R3 R@ R RE R. ( R0 R R ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt set_user_data� s c C s t j � } | j | | � | S( s Create a Gtk.TreeIter instance with the given user_data specific for this model. Use this method to create Gtk.TreeIter instance instead of directly calling Gtk.Treeiter(), this will ensure proper reference managment of wrapped used_data. ( R t TreeIterRF ( R0 R R ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt create_tree_iter� s c C s3 | d k r t d f S| j | � } t | f Sd S( sy Internal creation of a (bool, TreeIter) pair for returning directly back to the view interfacing with this model.N( R3 t FalseRH t True( R0 t dataR< ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt _create_tree_iter� s c C sB t t | � j | � t | � } | | j k r> | j | =n d S( s� Notify the model a row has been deleted. Use the node parameter to ensure the user_data reference associated with the path is properly freed by this model. :Parameters: path : Gtk.TreePath Path to the row that has been deleted. node : object Python object used as the node returned from "on_get_iter". This is optional but ensures the model will not leak references to this object. N( R+ R' t row_deletedR R. ( R0 t patht nodet node_id( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRM � s i c C s | j � S( s Internal method.( t on_get_flags( R0 ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_get_flags� s c C s | j � S( s Internal method.( t on_get_n_columns( R0 ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_get_n_columns� s c C s | j | � S( s Internal method.( t on_get_column_type( R0 t index( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_get_column_type� s c C s | j | j | � � S( s Internal method.( RL t on_get_iter( R0 RN ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_get_iter� s c C sP | d k r | j d � } n | j | j | � � } | j | | � | d k S( s Internal method.N( R3 t on_iter_nextR5 RF ( R0 R t next_data( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_iter_next� s c C s9 | j | j | � � } | d k r( d St j | � Sd S( s Internal method.N( t on_get_pathR5 R3 R t TreePath( R0 R RN ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_get_path� s c C s | j | j | � | � S( s Internal method.( t on_get_valueR5 ( R0 R t column( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_get_value� s c C s1 | r | j | � n d } | j | j | � � S( s Internal method.N( R5 R3 RL t on_iter_children( R0 t parentRK ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_iter_children s c C s | j | j | � � S( s Internal method.( t on_iter_has_childR5 ( R0 Rd ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_iter_has_child s c C s/ | d k r | j d � S| j | j | � � S( s Internal method.N( R3 t on_iter_n_childrenR5 ( R0 R ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_iter_n_children s c C sI | d k r! | j d | � } n | j | j | � | � } | j | � S( s Internal method.N( R3 t on_iter_nth_childR5 RL ( R0 Rd t nRK ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_iter_nth_child s c C s | j | j | j | � � � S( s Internal method.( RL t on_iter_parentR5 ( R0 t child( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_iter_parent s c C s | j | j | � � d S( N( t on_ref_nodeR5 ( R0 R ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_ref_node# s c C s | j | j | � � d S( N( t on_unref_nodeR5 ( R0 R ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt do_unref_node' s c C s t � d S( sy Overridable. :Returns Gtk.TreeModelFlags: The flags for this model. See: Gtk.TreeModelFlags N( t NotImplementedError( R0 ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRQ . s c C s t � d S( sZ Overridable. :Returns: The number of columns for this model. N( Rt ( R0 ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRS 6 s c C s t � d S( sY Overridable. :Returns: The column type for the given index. N( Rt ( R0 RV ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRU > s c C s t � d S( sc Overridable. :Returns: A python object (node) for the given TreePath. N( Rt ( R0 RN ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRX F s c C s t � d S( s� Overridable. :Parameters: node : object Node at current level. :Returns: A python object (node) following the given node at the current level. N( Rt ( R0 RO ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRZ N s c C s t � d S( sS Overridable. :Returns: A TreePath for the given node. N( Rt ( R0 RO ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyR] Z s c C s t � d S( s� Overridable. :Parameters: node : object column : int Column index to get the value from. :Returns: The value of the column for the given node.N( Rt ( R0 RO Ra ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyR` b s c C s t � d S( s� Overridable. :Returns: The first child of parent or None if parent has no children. If parent is None, return the first node of the model. N( Rt ( R0 Rd ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRc n s c C s t � d S( sY Overridable. :Returns: True if the given node has children. N( Rt ( R0 RO ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRf w s c C s t � d S( s� Overridable. :Returns: The number of children for the given node. If node is None, return the number of top level nodes. N( Rt ( R0 RO ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRh s c C s t � d S( sh Overridable. :Parameters: parent : object n : int Index of child within parent. :Returns: The child for the given parent index starting at 0. If parent None, return the top level node corresponding to "n". If "n" is larger then available nodes, return None. N( Rt ( R0 Rd Rk ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRj � s c C s t � d S( sj Overridable. :Returns: The parent node of child or None if child is a top level node.N( Rt ( R0 Rn ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRm � s c C s d S( N( ( R0 RO ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRp � s c C s d S( N( ( R0 RO ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyRr � s N(2 R R t __doc__R t PropertyRJ t boolRE R, R? R@ R/ RD R5 RF RH RL R3 RM R& RR RT t TYPE_INVALIDRW RI RY R\ R_ Rb Re Rg Ri Rl Ro Rq Rs RQ RS RU RX RZ R] R` Rc Rf Rh Rj Rm Rp Rr ( ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyR' F sR ( R RA R1 R t gi.repositoryR R t StructureR R R& t TreeModelR' ( ( ( sB /usr/lib64/python2.7/site-packages/pygtkcompat/generictreemodel.pyt <module> s