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dd� Zdd� Zdd� ZdU� fdd� Zed�dd � �Zed�d d � �Zeej�d d � �Zed!�d"d#� �Zed$�d%d&� �Zed�d'd(� �Zed�d)d*� �Zed!�d+d,� �Zed$�d-d.� �Z ed�d/d0� �Z ed!�d1d2� �Z ed!�d3d4� �Z ed�d5d6� �Z ed�d7d8� �Z!d9d:� Z"d;d<� Z#d=d>� Z$d?d@� Z%dAdB� Z&dCdD� Z'dEdF� Z(dGdH� Z)dIdJ� Z*dKdL� Z+dMdN� Z,dOdP� Z-dQdR� Z.dSdT� Z/� Z0S )V�GenericTreeModela A base implementation of a Gtk.TreeModel for python.
The GenericTreeModel eases implementing the Gtk.TreeModel interface in Python.
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directly with Python objects instead of iterators.
All of the on_* methods should be overridden by subclasses to provide the
underlying implementation a way to access custom model data. For the purposes of
this API, all custom model data supplied or handed back through the overridable
API will use the argument names: node, parent, and child in regards to user data
python objects.
The create_tree_iter, set_user_data, invalidate_iters, iter_is_valid methods are
available to help manage Gtk.TreeIter objects and their Python object references.
GenericTreeModel manages a pool of user data nodes that have been used with iters.
This pool stores a references to user data nodes as a dictionary value with the
key being the integer id of the data. This id is what the Gtk.TreeIter objects
use to reference data in the pool.
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by using the optional "node" argument to the "row_deleted" method when notifying
the model of row deletion.
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iter_is_valid� s z GenericTreeModel.iter_is_validc C s | j r| j|j S t|�S dS )z�Get the user_data associated with the given TreeIter.
GenericTreeModel stores arbitrary Python objects mapped to instances of Gtk.TreeIter.
This method allows to retrieve the Python object held by the given iterator.
N)�leak_referencesr r r r& r r r r$ � s z GenericTreeModel.get_user_datac C s< t |�|_|du r | �|� n| j|_| jr8|| j|j< dS )z�Applies user_data and stamp to the given iter.
If the models "leak_references" property is set, a reference to the
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r r r �create_tree_iter� s z!GenericTreeModel.create_tree_iterc C s" |du r dS | � |�}d|fS dS )zyInternal creation of a (bool, TreeIter) pair for returning directly
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z"GenericTreeModel._create_tree_iterNc s. t t| ��|� t|�}|| jv r*| j|= dS )a� 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 � row_deletedr r )r �path�nodeZnode_idr r r r0 � s
z GenericTreeModel.row_deletedr c C s | � � S ��Internal method.)� on_get_flagsr r r r � do_get_flags� s z GenericTreeModel.do_get_flagsc C s | � � S r3 )�on_get_n_columnsr r r r �do_get_n_columns� s z!GenericTreeModel.do_get_n_columnsc C s
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r1 r r r � do_get_path� s z GenericTreeModel.do_get_pathc C s | � | �|�|�S r3 )� on_get_valuer$ )r r
�columnr r r � do_get_value s z GenericTreeModel.do_get_valuec C s" |r| � |�nd}| �| �|��S r? )r$ r/ �on_iter_children)r �parentr. r r r �do_iter_children s z!GenericTreeModel.do_iter_childrenc C s | � | �|��S r3 )�on_iter_has_childr$ �r rH r r r �do_iter_has_child s z"GenericTreeModel.do_iter_has_childc C s" |du r| � d�S | � | �|��S r? )�on_iter_n_childrenr$ r& r r r �do_iter_n_children s
z#GenericTreeModel.do_iter_n_childrenc C s2 |du r| � d|�}n| � | �|�|�}| �|�S r? )�on_iter_nth_childr$ r/ )r rH �nr. r r r �do_iter_nth_child s z"GenericTreeModel.do_iter_nth_childc C s | � | �| �|���S r3 )r/ �on_iter_parentr$ �r Zchildr r r �do_iter_parent# s z GenericTreeModel.do_iter_parentc C s | � | �|�� d S r )� on_ref_noder$ r& r r r � do_ref_node( s z GenericTreeModel.do_ref_nodec C s | � | �|�� d S r )�
on_unref_noder$ r& r r r �
do_unref_node, s z GenericTreeModel.do_unref_nodec C s t �dS )zyOverridable.
:Returns Gtk.TreeModelFlags:
The flags for this model. See: Gtk.TreeModelFlags
Nr r r r r r5 3 s z GenericTreeModel.on_get_flagsc C s t �dS )zZOverridable.
:Returns:
The number of columns for this model.
Nr r r r r r7 ; s z!GenericTreeModel.on_get_n_columnsc C s t �dS )zYOverridable.
:Returns:
The column type for the given index.
Nr r: r r r r9 C s z#GenericTreeModel.on_get_column_typec C s t �dS )zcOverridable.
:Returns:
A python object (node) for the given TreePath.
Nr r= r r r r< K s z GenericTreeModel.on_get_iterc C s t �dS )z�Overridable.
:Parameters:
node : object
Node at current level.
:Returns:
A python object (node) following the given node at the current level.
Nr �r r2 r r r r@ S s
z GenericTreeModel.on_iter_nextc C s t �dS )zSOverridable.
:Returns:
A TreePath for the given node.
Nr rY r r r rB _ s z GenericTreeModel.on_get_pathc C s t �dS )z�Overridable.
:Parameters:
node : object
column : int
Column index to get the value from.
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z GenericTreeModel.on_get_valuec C s t �dS )z�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.
Nr rK r r r rG s s z!GenericTreeModel.on_iter_childrenc C s t �dS )zYOverridable.
:Returns:
True if the given node has children.
Nr rY r r r rJ | s z"GenericTreeModel.on_iter_has_childc C s t �dS )z�Overridable.
:Returns:
The number of children for the given node. If node is None,
return the number of top level nodes.
Nr rY r r r rM � s z#GenericTreeModel.on_iter_n_childrenc C s t �dS )ah 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.
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z"GenericTreeModel.on_iter_nth_childc C s t �dS )zjOverridable.
:Returns:
The parent node of child or None if child is a top level node.Nr rS r r r rR � s z GenericTreeModel.on_iter_parentc C s d S r r rY r r r rU � s z GenericTreeModel.on_ref_nodec C s d S r r rY r r r rW � s z GenericTreeModel.on_unref_node)N)1r r r Z__doc__r ZPropertyZboolr* r r% r' r r) r$ r+ r, r/ r0 r r6 r8 Z TYPE_INVALIDr; r> rA rC rF rI rL rN rQ rT rV rX r5 r7 r9 r< r@ rB rD rG rJ rM rO rR rU rW Z
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