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# -*- coding: utf-8 -*-
#
# File: portato/gui/wrapper.py
# This file is part of the Portato-Project, a graphical portage-frontend.
#
# Copyright (C) 2006 René 'Necoro' Neumann
# This is free software. You may redistribute copies of it under the terms of
# the GNU General Public License version 2.
# There is NO WARRANTY, to the extent permitted by law.
#
# Written by René 'Necoro' Neumann <necoro@necoro.net>
class Tree:
"""This represents an abstract of a Tree-Widget. It should be used for all operations not in a specific frontend, where a Tree is needed.
Each frontend _MUST_ define its own subclass and implement ALL of the methods, otherwise a NotImplementedError will be thrown."""
def iter_has_parent (self, it):
"""Returns whether the actual iterator has a parent.
@param it: the iterator
@type it: Iterator
@returns: True if it has a parent it, else False.
@rtype: boolean"""
raise NotImplementedError
def parent_iter (self, it):
"""Returns the parent iter.
@param it: the iterator
@type it: Iterator
@returns: Parent iterator or None if the current it has no parent.
@rtype: Iterator; None"""
raise NotImplementedError
def first_child_iter (self, it):
"""Returns the first child iter.
@param it: the iterator
@type it: Iterator
@returns: First child iterator or None if the current it has no children.
@rtype: Iterator; None"""
raise NotImplementedError
def iter_has_children (self, it):
"""Returns whether the actual iterator has children.
@param it: the iterator
@type it: Iterator
@returns: True if it has children, else False.
@rtype: boolean"""
raise NotImplementedError
def next_iter (self, it):
"""Returns the next iter.
@param it: the iterator
@type it: Iterator
@returns: Next iterator or None if the current iter is the last one.
@rtype: Iterator; None"""
raise NotImplementedError
def get_value (self, it, column):
"""Returns the value of the specific column at the given iterator.
@param it: the iterator
@type it: Iterator
@param column: the column of the iterator from where to get the value
@type column: int
@returns: the value
@rtype: anything"""
raise NotImplementedError
def append (self, parent = None, values = None):
"""Appends some values right after the given parent. If parent is None, it is appended as the first element.
@param parent: the iterator to append the values right after; if None it symbolizes the top
@type parent: Iterator
@param values: a list of values which are going to be appended to the tree
@type values: list
@returns: Iterator pointing to the newly appended stuff
@rtype: Iterator"""
raise NotImplementedError
def remove(self, it):
"""Removes an iterator out of the tree.
@attention: The iterator can point to anything hereafter. Do not reuse!
@param it: iterator to remove
@type it: Iterator"""
raise NotImplementedError
def get_original(self):
"""Returns the original tree-object.
@returns: original tree-object
@rtype: tree-object"""
raise NotImplementedError
#
# the "design" part
#
def get_cpv_column (self):
"""Returns the number of the column where the cpv's are stored.
@returns: column with cpv's
@rtype: int"""
raise NotImplementedError
def is_in_emerge (self, it):
"""Checks whether an iterator is part of the "Emerge" section.
@param it: the iterator to check
@type it: Iterator
@returns: True if the iter is part; False otherwise
@rtype: boolean"""
raise NotImplementedError
def is_in_unmerge (self, it):
"""Checks whether an iterator is part of the "Unmerge" section.
@param it: the iterator to check
@type it: Iterator
@returns: True if the iter is part; False otherwise
@rtype: boolean"""
raise NotImplementedError
def get_emerge_it (self):
"""Returns an iterator signaling the top of the emerge section.
@returns: emerge-iterator
@rtype: Iterator"""
raise NotImplementedError
def get_unmerge_it (self):
"""Returns an iterator signaling the top of the unmerge section.
@returns: unmerge-iterator
@rtype: Iterator"""
raise NotImplementedError
def build_append_value (self, cpv, oneshot = False, update = False, version = None):
"""Builds the list, which is going to be passed to append.
@param cpv: the cpv
@type cpv: string (cpv)
@param oneshot: True if oneshot
@type oneshot: boolean
@param update: True if this is an update
@type update: boolean
@param version: the version we update from
@type version: string
@returns: the created list
@rtype: list"""
raise NotImplementedError
class Console:
"""This represents the abstract of a console. It should be used for all operations not in a specific frontend, where a console is needed.
Each frontend _MUST_ define its own subclass and implement ALL of the methods, otherwise a NotImplementedError will be thrown."""
def set_pty (self, pty):
"""This sets the pseudo-terminal where to print the incoming output to.
@param pty: the terminal to print to
@type pty: file-descriptor"""
raise NotImplementedError
def get_window_title (self):
"""This should return the current title of the console. If this is not possible, it must return None.
@returns: title of the console or None"""
raise NotImplementedError
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