class TagsTreeWdgt(Component, QtWidgets.QWidget):
"""Displays all the tags in a tree together with check boxes. """
tags_changed_signal = QtCore.pyqtSignal()
def __init__(self, acquire_database=None, **kwds):
super().__init__(**kwds)
self.layout = QtWidgets.QVBoxLayout(self)
self.tree_wdgt = QtWidgets.QTreeWidget(self)
self.tree_wdgt.setColumnCount(2)
self.tree_wdgt.setColumnHidden(1, True)
self.tree_wdgt.setColumnHidden(NODE, True)
self.tree_wdgt.setHeaderHidden(True)
self.tree_wdgt.setSelectionMode(\
QtWidgets.QAbstractItemView.ExtendedSelection)
self.delegate = TagDelegate(\
component_manager=kwds["component_manager"], parent=self)
self.tree_wdgt.setItemDelegate(self.delegate)
self.delegate.rename_node.connect(self.rename_node)
self.delegate.redraw_node.connect(self.redraw_node)
self.layout.addWidget(self.tree_wdgt)
self.tree_wdgt.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.tree_wdgt.customContextMenuRequested.connect(\
self.context_menu)
self.acquire_database = acquire_database
def selected_nodes_which_can_be_renamed(self):
nodes = []
for index in self.tree_wdgt.selectedIndexes():
node_index = \
index.model().index(index.row(), NODE, index.parent())
node = index.model().data(node_index)
if node in self.nodes_which_can_be_renamed:
nodes.append(node)
return nodes
def selected_nodes_which_can_be_deleted(self):
nodes = []
for index in self.tree_wdgt.selectedIndexes():
node_index = \
index.model().index(index.row(), NODE, index.parent())
node = index.model().data(node_index)
if node in self.nodes_which_can_be_deleted:
nodes.append(node)
return nodes
def context_menu(self, point):
menu = QtWidgets.QMenu(self)
to_rename = self.selected_nodes_which_can_be_renamed()
if len(to_rename) >= 1:
rename_action = QtWidgets.QAction(_("&Rename"), menu)
rename_action.triggered.connect(self.menu_rename)
rename_action.setShortcut(QtCore.Qt.Key_Enter)
menu.addAction(rename_action)
if len(to_rename) > 1:
rename_action.setEnabled(False)
to_delete = self.selected_nodes_which_can_be_deleted()
if len(to_delete) >= 1:
delete_action = QtWidgets.QAction(_("&Delete"), menu)
delete_action.triggered.connect(self.menu_delete)
delete_action.setShortcut(QtGui.QKeySequence.Delete)
menu.addAction(delete_action)
if len(to_delete) + len(to_rename) >= 1:
menu.exec_(self.tree_wdgt.mapToGlobal(point))
def keyPressEvent(self, event):
if event.key() in [QtCore.Qt.Key_Enter, QtCore.Qt.Key_Return]:
self.menu_rename()
elif event.key() in [QtCore.Qt.Key_Delete, QtCore.Qt.Key_Backspace]:
self.menu_delete()
else:
QtWidgets.QWidget.keyPressEvent(self, event)
def menu_rename(self):
nodes = self.selected_nodes_which_can_be_renamed()
# If there are tags selected, this means that we could only have got
# after pressing return on an actual edit, due to our custom
# 'keyPressEvent'. We should not continue in that case.
if len(nodes) == 0:
return
# We display the full node (i.e. all levels including ::), so that
# the hierarchy can be changed upon editing.
from mnemosyne.pyqt_ui.ui_rename_tag_dlg import Ui_RenameTagDlg
class RenameDlg(QtWidgets.QDialog, Ui_RenameTagDlg):
def __init__(self, old_tag_name):
super().__init__()
self.setupUi(self)
self.tag_name.setText(\
old_tag_name.replace("::" + _("Untagged"), "" ))
old_tag_name = nodes[0]
dlg = RenameDlg(old_tag_name)
if dlg.exec_() == QtWidgets.QDialog.Accepted:
self.rename_node(nodes[0], dlg.tag_name.text())
def menu_delete(self):
nodes = self.selected_nodes_which_can_be_deleted()
if len(nodes) == 0:
return
if len(nodes) > 1:
question = _("Delete these tags? Cards with these tags will not be deleted.")
else:
question = _("Delete this tag? Cards with this tag will not be deleted.")
answer = self.main_widget().show_question\
(question, _("&OK"), _("&Cancel"), "")
if answer == 1: # Cancel.
return
self.delete_nodes(nodes)
def create_tree(self, tree, qt_parent):
for node in tree:
node_name = "%s (%d)" % \
(self.tag_tree.display_name_for_node[node],
self.tag_tree.card_count_for_node[node])
node_item = QtWidgets.QTreeWidgetItem(qt_parent, [node_name, node], 0)
node_item.setFlags(node_item.flags() | \
QtCore.Qt.ItemIsUserCheckable | QtCore.Qt.ItemIsTristate)
if node not in ["__ALL__", "__UNTAGGED__"] and \
not "::" + _("Untagged") in node:
node_item.setFlags(node_item.flags() | \
QtCore.Qt.ItemIsEditable)
self.nodes_which_can_be_renamed.append(node)
self.nodes_which_can_be_deleted.append(node)
if node in self.tag_tree.tag_for_node:
# Since node_item seems mutable, we cannot use a dict.
self.node_items.append(node_item)
self.tag_for_node_item.append(self.tag_tree.tag_for_node[node])
node_item.setData(NODE, QtCore.Qt.DisplayRole,
QtCore.QVariant(node))
self.create_tree(tree=self.tag_tree[node], qt_parent=node_item)
def display(self, criterion=None):
# Create criterion if needed.
if criterion is None:
criterion = DefaultCriterion(self.component_manager)
for tag in self.database().tags():
criterion._tag_ids_active.add(tag._id)
# Create tree.
self.tag_tree = TagTree(self.component_manager)
self.tree_wdgt.clear()
self.node_items = []
self.tag_for_node_item = []
self.nodes_which_can_be_deleted = []
self.nodes_which_can_be_renamed = []
node = "__ALL__"
node_name = "%s (%d)" % (self.tag_tree.display_name_for_node[node],
self.tag_tree.card_count_for_node[node])
root = self.tag_tree[node]
root_item = QtWidgets.QTreeWidgetItem(\
self.tree_wdgt, [node_name, node], 0)
root_item.setFlags(root_item.flags() | \
QtCore.Qt.ItemIsUserCheckable | QtCore.Qt.ItemIsTristate)
root_item.setCheckState(0, QtCore.Qt.Checked)
self.create_tree(self.tag_tree[node], qt_parent=root_item)
# Set forbidden tags.
if len(criterion._tag_ids_forbidden):
for i in range(len(self.node_items)):
node_item = self.node_items[i]
tag = self.tag_for_node_item[i]
if tag._id in criterion._tag_ids_forbidden:
node_item.setCheckState(0, QtCore.Qt.Checked)
else:
node_item.setCheckState(0, QtCore.Qt.Unchecked)
# Set active tags.
else:
# We first set all the tags inactive. We cannot do this in the
# second branch of the upcoming 'if' statement, as then an
# inactive parent tag coming later in the list will deactivate
# active child tags coming earlier in the list.
for node_item in self.node_items:
node_item.setCheckState(0, QtCore.Qt.Unchecked)
for i in range(len(self.node_items)):
node_item = self.node_items[i]
tag = self.tag_for_node_item[i]
if tag._id in criterion._tag_ids_active:
node_item.setCheckState(0, QtCore.Qt.Checked)
# Restore state of the tree.
self.tree_wdgt.expandAll()
collapsed = self.config()["tag_tree_wdgt_state"]
if collapsed is None:
collapsed = []
iterator = QtWidgets.QTreeWidgetItemIterator(self.tree_wdgt)
while iterator.value():
if iterator.value().text(1) in collapsed:
iterator.value().setExpanded(False)
iterator += 1
def checked_to_active_tags_in_criterion(self, criterion):
for i in range(len(self.node_items)):
tag = self.tag_for_node_item[i]
if self.node_items[i].checkState(0) == QtCore.Qt.Checked:
criterion._tag_ids_active.add(tag._id)
criterion._tag_ids_forbidden = set()
return criterion
def checked_to_forbidden_tags_in_criterion(self, criterion):
for i in range(len(self.node_items)):
tag = self.tag_for_node_item[i]
if self.node_items[i].checkState(0) == QtCore.Qt.Checked:
criterion._tag_ids_forbidden.add(tag._id)
criterion._tag_ids_active = \
set([tag._id for tag in self.tag_for_node_item])
return criterion
def unchecked_to_forbidden_tags_in_criterion(self, criterion):
for i in range(len(self.node_items)):
tag = self.tag_for_node_item[i]
if self.node_items[i].checkState(0) == QtCore.Qt.Unchecked:
criterion._tag_ids_forbidden.add(tag._id)
return criterion
def save_criterion(self):
self.saved_criterion = DefaultCriterion(self.component_manager)
self.checked_to_active_tags_in_criterion(self.saved_criterion)
# We also save the unchecked tags as this will allow us to identify
# any new tags created afterwards.
self.unchecked_to_forbidden_tags_in_criterion(self.saved_criterion)
# Now we've saved the checked state of the tree.
# Saving and restoring the selected state is less trivial, because
# in the case of trees, the model indexes have parents which become
# invalid when creating the widget.
# The solution would be to save tags and reselect those in the new
# widget.
def restore_criterion(self):
new_criterion = DefaultCriterion(self.component_manager)
for tag in self.database().tags():
if tag._id in self.saved_criterion._tag_ids_active or \
tag._id not in self.saved_criterion._tag_ids_forbidden:
# Second case deals with recently added tag.
new_criterion._tag_ids_active.add(tag._id)
self.display(new_criterion)
def store_tree_state(self):
"""Store which nodes are collapsed. """
collapsed = []
iterator = QtWidgets.QTreeWidgetItemIterator(self.tree_wdgt)
while iterator.value():
if not iterator.value().isExpanded():
collapsed.append(iterator.value().text(1))
iterator += 1
self.config()["tag_tree_wdgt_state"] = collapsed
def rename_node(self, node, new_name):
if self.acquire_database:
self.acquire_database()
self.save_criterion()
self.store_tree_state()
self.tag_tree.rename_node(node, new_name)
self.restore_criterion()
self.tags_changed_signal.emit()
def delete_nodes(self, nodes):
if self.acquire_database:
self.acquire_database()
self.save_criterion()
self.store_tree_state()
for node in nodes:
self.tag_tree.delete_subtree(node)
self.restore_criterion()
self.tags_changed_signal.emit()
def redraw_node(self, node):
"""When renaming a tag to the same name, we need to redraw the node
to show the card count again.
"""
# We do the redrawing in a rather hackish way now, simply by
# recreating the widget. Could be sped up, but at the expense of more
# complicated code.
self.save_criterion()
self.restore_criterion()
def rebuild(self):
"""To be called when external events invalidate the tag tree,
e.g. due to edits in the card browser widget.
"""
self.save_criterion()
self.store_tree_state()
self.tag_tree = TagTree(self.component_manager)
self.restore_criterion()
def closeEvent(self, event):
self.store_tree_state()
class TestTagTree(MnemosyneTest):
def test_1(self):
fact_data = {"f": "question",
"b": "answer"}
card_type = self.card_type_with_id("1")
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=[])[0]
self.controller().save_file()
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert len(self.tree.keys()) == 2
assert self.tree['__ALL__'] == [u'__UNTAGGED__']
def test_2(self):
fact_data = {"f": "question",
"b": "answer"}
card_type = self.card_type_with_id("1")
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["tag_1"])[0]
self.controller().save_file()
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert len(self.tree.keys()) == 3
assert self.tree['__ALL__'] == [u'tag_1', u'__UNTAGGED__']
def test_3(self):
fact_data = {"f": "question", "b": "answer"}
card_type = self.card_type_with_id("1")
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a"])[0]
fact_data = {"f": "question2", "b": "answer2"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["Z"])[0]
fact_data = {"f": "question3", "b": "answer3"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a::b"])[0]
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a::c"])[0]
fact_data = {"f": "question5", "b": "answer5"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["b::c::d"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::c"] == 1
assert self.tree.card_count_for_node["b::c::d"] == 1
def test_4(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a::b"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a"])[0]
fact_data = {"f": "question2", "b": "answer2"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["Z"])[0]
fact_data = {"f": "question3", "b": "answer3"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a::c"])[0]
fact_data = {"f": "question5", "b": "answer5"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["b::c::d"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::c"] == 1
assert self.tree.card_count_for_node["b::c::d"] == 1
self.tree.rename_node("Z", "Z::Z")
self.tree.rename_node("b::c", "b::cc")
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["Z::Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::cc"] == 1
assert self.tree.card_count_for_node["b::cc::d"] == 1
def test_5(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a::b"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a"])[0]
fact_data = {"f": "question2", "b": "answer2"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["Z"])[0]
fact_data = {"f": "question3", "b": "answer3"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a::c"])[0]
fact_data = {"f": "question5", "b": "answer5"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["b::c::d"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::c"] == 1
assert self.tree.card_count_for_node["b::c::d"] == 1
self.tree.rename_node("b::c", "b")
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::d"] == 1
def test_rename_to_existing_tag(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["tag1"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["tag2"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert len(self.database().tags()) == 3
self.tree.rename_node("tag1", "tag2")
assert self.tree.card_count_for_node["tag2"] == 2
assert len(self.database().tags()) == 2
def test_rename_to_existing_tag_2(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["Xx::vb::test", "Xx::aa::vb::test"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert len(self.database().tags()) == 3
self.tree.rename_node("Xx::aa::vb::test", "Xx::vb::test")
assert self.tree.card_count_for_node["Xx::vb::test"] == 1
assert "Xx::aa::vb::test" not in self.tree.card_count_for_node
assert "," not in self.database().con.execute(\
"select tags from cards where _id=?", (card._id,)).fetchone()[0]
assert self.database().con.execute(\
"select count() from tags_for_card").fetchone()[0] == 1
assert len(self.database().tags()) == 2
def test_rename_to_empty(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["tag1"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["tag2"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
self.tree.rename_node("tag1", "")
assert self.tree.card_count_for_node["__UNTAGGED__"] == 1
assert len(self.database().tags()) == 2
def test_rename_to_empty_2(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["A::tag1"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
self.tree.rename_node("A", "")
assert self.tree.card_count_for_node["tag1"] == 1
assert len(self.database().tags()) == 2
def test_rename_to_empty_3(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["A::tag1"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["A"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
self.tree.rename_node("A", "")
assert self.tree.card_count_for_node["__UNTAGGED__"] == 1
assert self.tree.card_count_for_node["tag1"] == 1
assert len(self.database().tags()) == 2
def test_rename_to_forbidden(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["A::tag1"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["A"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
self.tree.rename_node("A", "__UNTAGGED__")
assert "__UNTAGGED__" in self.tree.card_count_for_node
def test_delete(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a::b"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a"])[0]
fact_data = {"f": "question2", "b": "answer2"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["Z"])[0]
fact_data = {"f": "question3", "b": "answer3"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a::c"])[0]
fact_data = {"f": "question5", "b": "answer5"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["b::c::d"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::c"] == 1
assert self.tree.card_count_for_node["b::c::d"] == 1
self.tree.delete_subtree("b::c")
card = self.database().card(card._id, is_id_internal=True)
assert card.tag_string() == ""
self.database().con.execute("select tags from cards where _id=?",
(card._id, )).fetchone()[0] == ""
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["__UNTAGGED__"] == 1
assert "b" not in self.tree.card_count_for_node
assert "b::c" not in self.tree.card_count_for_node
assert "b::c::d" not in self.tree.card_count_for_node
def test_delete_2(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a::b"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a"])[0]
fact_data = {"f": "question2", "b": "answer2"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["Z"])[0]
fact_data = {"f": "question3", "b": "answer3"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["a::c"])[0]
fact_data = {"f": "question5", "b": "answer5"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["b::c::d", "b"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::c"] == 1
assert self.tree.card_count_for_node["b::c::d"] == 1
self.tree.delete_subtree("b::c")
card = self.database().card(card._id, is_id_internal=True)
assert card.tag_string() == "b"
self.database().con.execute("select tags from cards where _id=?",
(card._id, )).fetchone()[0] == "b"
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert "__UNTAGGED__" in self.tree.card_count_for_node
assert "b::c" not in self.tree.card_count_for_node
assert "b::c::d" not in self.tree.card_count_for_node
def test_count_1(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["b"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["b", "b"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 2
def test_count_2(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["X::a"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["X::a", "X::b"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 2
assert self.tree.card_count_for_node["X"] == 2
def test_delete_forbidden(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data, card_type,
grade=-1, tag_names=["forbidden"])[0]
assert self.database().active_count() == 1
c = DefaultCriterion(self.mnemosyne.component_manager)
c.deactivated_card_type_fact_view_ids = set()
c._tag_ids_active = set([self.database().get_or_create_tag_with_name("active")._id, 1])
c._tag_ids_forbidden = set([self.database().get_or_create_tag_with_name("forbidden")._id])
self.database().set_current_criterion(c)
assert self.database().active_count() == 0
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
self.tree.delete_subtree("forbidden")
assert self.database().active_count() == 1
class TestTagTree(MnemosyneTest):
def test_1(self):
fact_data = {"f": "question", "b": "answer"}
card_type = self.card_type_with_id("1")
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=[])[0]
self.controller().save_file()
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert len(list(self.tree.keys())) == 2
assert self.tree['__ALL__'] == ['__UNTAGGED__']
def test_2(self):
fact_data = {"f": "question", "b": "answer"}
card_type = self.card_type_with_id("1")
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["tag_1"])[0]
self.controller().save_file()
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert len(list(self.tree.keys())) == 3
assert self.tree['__ALL__'] == ['tag_1', '__UNTAGGED__']
def test_3(self):
fact_data = {"f": "question", "b": "answer"}
card_type = self.card_type_with_id("1")
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a"])[0]
fact_data = {"f": "question2", "b": "answer2"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["Z"])[0]
fact_data = {"f": "question3", "b": "answer3"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a::b"])[0]
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a::c"])[0]
fact_data = {"f": "question5", "b": "answer5"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["b::c::d"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::c"] == 1
assert self.tree.card_count_for_node["b::c::d"] == 1
assert self.tree.nodes() == \
["a", "a::Untagged", "a::b", "a::c", "b", "b::c", "b::c::d",
"Z", "__UNTAGGED__"]
def test_4(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a::b"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a"])[0]
fact_data = {"f": "question2", "b": "answer2"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["Z"])[0]
fact_data = {"f": "question3", "b": "answer3"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a::c"])[0]
fact_data = {"f": "question5", "b": "answer5"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["b::c::d"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::c"] == 1
assert self.tree.card_count_for_node["b::c::d"] == 1
self.tree.rename_node("Z", "Z::Z")
self.tree.rename_node("b::c", "b::cc")
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["Z::Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::cc"] == 1
assert self.tree.card_count_for_node["b::cc::d"] == 1
def test_5(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a::b"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a"])[0]
fact_data = {"f": "question2", "b": "answer2"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["Z"])[0]
fact_data = {"f": "question3", "b": "answer3"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a::c"])[0]
fact_data = {"f": "question5", "b": "answer5"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["b::c::d"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::c"] == 1
assert self.tree.card_count_for_node["b::c::d"] == 1
self.tree.rename_node("b::c", "b")
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::d"] == 1
def test_rename_to_existing_tag(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["tag1"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["tag2"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert len(self.database().tags()) == 3
self.tree.rename_node("tag1", "tag2")
assert self.tree.card_count_for_node["tag2"] == 2
assert len(self.database().tags()) == 2
def test_rename_to_existing_tag_2(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(
fact_data,
card_type,
grade=-1,
tag_names=["Xx::vb::test", "Xx::aa::vb::test"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert len(self.database().tags()) == 3
self.tree.rename_node("Xx::aa::vb::test", "Xx::vb::test")
assert self.tree.card_count_for_node["Xx::vb::test"] == 1
assert "Xx::aa::vb::test" not in self.tree.card_count_for_node
assert "," not in self.database().con.execute(\
"select tags from cards where _id=?", (card._id,)).fetchone()[0]
assert self.database().con.execute(\
"select count() from tags_for_card").fetchone()[0] == 1
assert len(self.database().tags()) == 2
def test_rename_to_empty(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["tag1"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["tag2"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
self.tree.rename_node("tag1", "")
assert self.tree.card_count_for_node["__UNTAGGED__"] == 1
assert len(self.database().tags()) == 2
def test_rename_to_empty_2(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["A::tag1"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
self.tree.rename_node("A", "")
assert self.tree.card_count_for_node["tag1"] == 1
assert len(self.database().tags()) == 2
def test_rename_to_empty_3(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["A::tag1"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["A"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
self.tree.rename_node("A", "")
assert self.tree.card_count_for_node["__UNTAGGED__"] == 1
assert self.tree.card_count_for_node["tag1"] == 1
assert len(self.database().tags()) == 2
def test_rename_to_forbidden(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["A::tag1"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["A"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
self.tree.rename_node("A", "__UNTAGGED__")
assert "__UNTAGGED__" in self.tree.card_count_for_node
def test_delete(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a::b"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a"])[0]
fact_data = {"f": "question2", "b": "answer2"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["Z"])[0]
fact_data = {"f": "question3", "b": "answer3"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a::c"])[0]
fact_data = {"f": "question5", "b": "answer5"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["b::c::d"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::c"] == 1
assert self.tree.card_count_for_node["b::c::d"] == 1
self.tree.delete_subtree("b::c")
card = self.database().card(card._id, is_id_internal=True)
assert card.tag_string() == ""
self.database().con.execute("select tags from cards where _id=?",
(card._id, )).fetchone()[0] == ""
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["__UNTAGGED__"] == 1
assert "b" not in self.tree.card_count_for_node
assert "b::c" not in self.tree.card_count_for_node
assert "b::c::d" not in self.tree.card_count_for_node
def test_delete_2(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a::b"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a"])[0]
fact_data = {"f": "question2", "b": "answer2"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["Z"])[0]
fact_data = {"f": "question3", "b": "answer3"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["a::c"])[0]
fact_data = {"f": "question5", "b": "answer5"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["b::c::d",
"b"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert self.tree.card_count_for_node["b"] == 1
assert self.tree.card_count_for_node["b::c"] == 1
assert self.tree.card_count_for_node["b::c::d"] == 1
self.tree.delete_subtree("b::c")
card = self.database().card(card._id, is_id_internal=True)
assert card.tag_string() == ""
self.database().con.execute("select tags from cards where _id=?",
(card._id, )).fetchone()[0] == "b"
assert self.tree.card_count_for_node["__ALL__"] == 5
assert self.tree.card_count_for_node["a"] == 3
assert self.tree.card_count_for_node["Z"] == 1
assert self.tree.card_count_for_node["a::b"] == 1
assert self.tree.card_count_for_node["a::c"] == 1
assert "b" not in self.tree.card_count_for_node
assert "__UNTAGGED__" in self.tree.card_count_for_node
assert "b::c" not in self.tree.card_count_for_node
assert "b::c::d" not in self.tree.card_count_for_node
def test_count_1(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["b"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["b", "b"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 2
def test_count_2(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question4", "b": "answer4"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["X::a"])[0]
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["X::a",
"X::b"])[0]
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
assert self.tree.card_count_for_node["__ALL__"] == 2
assert self.tree.card_count_for_node["X"] == 2
def test_delete_forbidden(self):
card_type = self.card_type_with_id("1")
fact_data = {"f": "question", "b": "answer"}
card = self.controller().create_new_cards(fact_data,
card_type,
grade=-1,
tag_names=["forbidden"])[0]
assert self.database().active_count() == 1
c = DefaultCriterion(self.mnemosyne.component_manager)
c.deactivated_card_type_fact_view_ids = set()
c._tag_ids_active = set(
[self.database().get_or_create_tag_with_name("active")._id, 1])
c._tag_ids_forbidden = set(
[self.database().get_or_create_tag_with_name("forbidden")._id])
self.database().set_current_criterion(c)
assert self.database().active_count() == 0
from mnemosyne.libmnemosyne.tag_tree import TagTree
self.tree = TagTree(self.mnemosyne.component_manager)
self.tree.delete_subtree("forbidden")
assert self.database().active_count() == 1
class TagsTreeWdgt(QtGui.QWidget, Component):
"""Displays all the tags in a tree together with check boxes. """
tags_changed_signal = QtCore.pyqtSignal()
def __init__(self, component_manager, parent, acquire_database=None):
Component.__init__(self, component_manager)
QtGui.QWidget.__init__(self, parent)
self.layout = QtGui.QVBoxLayout(self)
self.tree_wdgt = QtGui.QTreeWidget(self)
self.tree_wdgt.setColumnCount(2)
self.tree_wdgt.setColumnHidden(1, True)
self.tree_wdgt.setColumnHidden(NODE, True)
self.tree_wdgt.setHeaderHidden(True)
self.tree_wdgt.setSelectionMode(\
QtGui.QAbstractItemView.ExtendedSelection)
self.delegate = TagDelegate(component_manager, self)
self.tree_wdgt.setItemDelegate(self.delegate)
self.delegate.rename_node.connect(self.rename_node)
self.delegate.redraw_node.connect(self.redraw_node)
self.layout.addWidget(self.tree_wdgt)
self.tree_wdgt.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.tree_wdgt.customContextMenuRequested.connect(\
self.context_menu)
self.acquire_database = acquire_database
def selected_nodes_which_can_be_renamed(self):
nodes = []
for index in self.tree_wdgt.selectedIndexes():
node_index = \
index.model().index(index.row(), NODE, index.parent())
node = index.model().data(node_index).toString()
if node in self.nodes_which_can_be_renamed:
nodes.append(node)
return nodes
def selected_nodes_which_can_be_deleted(self):
nodes = []
for index in self.tree_wdgt.selectedIndexes():
node_index = \
index.model().index(index.row(), NODE, index.parent())
node = index.model().data(node_index).toString()
if node in self.nodes_which_can_be_deleted:
nodes.append(node)
return nodes
def context_menu(self, point):
menu = QtGui.QMenu(self)
to_rename = self.selected_nodes_which_can_be_renamed()
if len(to_rename) >= 1:
rename_action = QtGui.QAction(_("&Rename"), menu)
rename_action.triggered.connect(self.menu_rename)
rename_action.setShortcut(QtCore.Qt.Key_Enter)
menu.addAction(rename_action)
if len(to_rename) > 1:
rename_action.setEnabled(False)
to_delete = self.selected_nodes_which_can_be_deleted()
if len(to_delete) >= 1:
delete_action = QtGui.QAction(_("&Delete"), menu)
delete_action.triggered.connect(self.menu_delete)
delete_action.setShortcut(QtGui.QKeySequence.Delete)
menu.addAction(delete_action)
if len(to_delete) + len(to_rename) >= 1:
menu.exec_(self.tree_wdgt.mapToGlobal(point))
def keyPressEvent(self, event):
if event.key() in [QtCore.Qt.Key_Enter, QtCore.Qt.Key_Return]:
self.menu_rename()
elif event.key() in [QtCore.Qt.Key_Delete, QtCore.Qt.Key_Backspace]:
self.menu_delete()
else:
QtGui.QWidget.keyPressEvent(self, event)
def menu_rename(self):
nodes = self.selected_nodes_which_can_be_renamed()
# If there are tags selected, this means that we could only have got
# after pressing return on an actual edit, due to our custom
# 'keyPressEvent'. We should not continue in that case.
if len(nodes) == 0:
return
# We display the full node (i.e. all levels including ::), so that
# the hierarchy can be changed upon editing.
from mnemosyne.pyqt_ui.ui_rename_tag_dlg import Ui_RenameTagDlg
class RenameDlg(QtGui.QDialog, Ui_RenameTagDlg):
def __init__(self, old_tag_name):
QtGui.QDialog.__init__(self)
self.setupUi(self)
self.tag_name.setText(\
old_tag_name.replace("::" + _("Untagged"), "" ))
old_tag_name = nodes[0]
dlg = RenameDlg(old_tag_name)
if dlg.exec_() == QtGui.QDialog.Accepted:
self.rename_node(nodes[0], unicode(dlg.tag_name.text()))
def menu_delete(self):
nodes = self.selected_nodes_which_can_be_deleted()
if len(nodes) == 0:
return
if len(nodes) > 1:
question = _("Delete these tags? Cards with these tags will not be deleted.")
else:
question = _("Delete this tag? Cards with this tag will not be deleted.")
answer = self.main_widget().show_question\
(question, _("&OK"), _("&Cancel"), "")
if answer == 1: # Cancel.
return
self.delete_nodes(nodes)
def create_tree(self, tree, qt_parent):
for node in tree:
node_name = "%s (%d)" % \
(self.tag_tree.display_name_for_node[node],
self.tag_tree.card_count_for_node[node])
node_item = QtGui.QTreeWidgetItem(qt_parent, [node_name, node], 0)
node_item.setFlags(node_item.flags() | \
QtCore.Qt.ItemIsUserCheckable | QtCore.Qt.ItemIsTristate)
if node not in ["__ALL__", "__UNTAGGED__"] and \
not "::" + _("Untagged") in node:
node_item.setFlags(node_item.flags() | \
QtCore.Qt.ItemIsEditable)
self.nodes_which_can_be_renamed.append(node)
self.nodes_which_can_be_deleted.append(node)
if node in self.tag_tree.tag_for_node:
self.tag_for_node_item[node_item] = \
self.tag_tree.tag_for_node[node]
node_item.setData(NODE, QtCore.Qt.DisplayRole,
QtCore.QVariant(QtCore.QString(node)))
self.create_tree(tree=self.tag_tree[node], qt_parent=node_item)
def display(self, criterion=None):
# Create criterion if needed.
if criterion is None:
criterion = DefaultCriterion(self.component_manager)
for tag in self.database().tags():
criterion._tag_ids_active.add(tag._id)
# Create tree.
self.tag_tree = TagTree(self.component_manager)
self.tree_wdgt.clear()
self.tag_for_node_item = {}
self.nodes_which_can_be_deleted = []
self.nodes_which_can_be_renamed = []
node = "__ALL__"
node_name = "%s (%d)" % (self.tag_tree.display_name_for_node[node],
self.tag_tree.card_count_for_node[node])
root = self.tag_tree[node]
root_item = QtGui.QTreeWidgetItem(\
self.tree_wdgt, [node_name, node], 0)
root_item.setFlags(root_item.flags() | \
QtCore.Qt.ItemIsUserCheckable | QtCore.Qt.ItemIsTristate)
root_item.setCheckState(0, QtCore.Qt.Checked)
self.create_tree(self.tag_tree[node], qt_parent=root_item)
# Set forbidden tags.
if len(criterion._tag_ids_forbidden):
for node_item, tag in self.tag_for_node_item.iteritems():
if tag._id in criterion._tag_ids_forbidden:
node_item.setCheckState(0, QtCore.Qt.Checked)
else:
node_item.setCheckState(0, QtCore.Qt.Unchecked)
# Set active tags.
else:
# We first set all the tags inactive. We cannot do this in the
# second branch of the upcoming 'if' statement, as then an
# inactive parent tag coming later in the list will deactivate
# active child tags coming earlier in the list.
for node_item in self.tag_for_node_item:
node_item.setCheckState(0, QtCore.Qt.Unchecked)
for node_item, tag in self.tag_for_node_item.iteritems():
if tag._id in criterion._tag_ids_active:
node_item.setCheckState(0, QtCore.Qt.Checked)
# Restore state of the tree.
self.tree_wdgt.expandAll()
collapsed = self.config()["tag_tree_wdgt_state"]
if collapsed is None:
collapsed = []
iterator = QtGui.QTreeWidgetItemIterator(self.tree_wdgt)
while iterator.value():
if unicode(iterator.value().text(1)) in collapsed:
iterator.value().setExpanded(False)
iterator += 1
def checked_to_active_tags_in_criterion(self, criterion):
for item, tag in self.tag_for_node_item.iteritems():
if item.checkState(0) == QtCore.Qt.Checked:
criterion._tag_ids_active.add(tag._id)
criterion._tag_ids_forbidden = set()
return criterion
def checked_to_forbidden_tags_in_criterion(self, criterion):
for item, tag in self.tag_for_node_item.iteritems():
if item.checkState(0) == QtCore.Qt.Checked:
criterion._tag_ids_forbidden.add(tag._id)
criterion._tag_ids_active = \
set([tag._id for tag in self.tag_for_node_item.values()])
return criterion
def unchecked_to_forbidden_tags_in_criterion(self, criterion):
for item, tag in self.tag_for_node_item.iteritems():
if item.checkState(0) == QtCore.Qt.Unchecked:
criterion._tag_ids_forbidden.add(tag._id)
return criterion
def save_criterion(self):
self.saved_criterion = DefaultCriterion(self.component_manager)
self.checked_to_active_tags_in_criterion(self.saved_criterion)
# We also save the unchecked tags as this will allow us to identify
# any new tags created afterwards.
self.unchecked_to_forbidden_tags_in_criterion(self.saved_criterion)
# Now we've saved the checked state of the tree.
# Saving and restoring the selected state is less trivial, because
# in the case of trees, the model indexes have parents which become
# invalid when creating the widget.
# The solution would be to save tags and reselect those in the new
# widget.
def restore_criterion(self):
new_criterion = DefaultCriterion(self.component_manager)
for tag in self.database().tags():
if tag._id in self.saved_criterion._tag_ids_active or \
tag._id not in self.saved_criterion._tag_ids_forbidden:
# Second case deals with recently added tag.
new_criterion._tag_ids_active.add(tag._id)
self.display(new_criterion)
def store_tree_state(self):
"""Store which nodes are collapsed. """
collapsed = []
iterator = QtGui.QTreeWidgetItemIterator(self.tree_wdgt)
while iterator.value():
if not iterator.value().isExpanded():
collapsed.append(unicode(iterator.value().text(1)))
iterator += 1
self.config()["tag_tree_wdgt_state"] = collapsed
def rename_node(self, node, new_name):
if self.acquire_database:
self.acquire_database()
self.save_criterion()
self.store_tree_state()
self.tag_tree.rename_node(unicode(node), unicode(new_name))
self.restore_criterion()
self.tags_changed_signal.emit()
def delete_nodes(self, nodes):
if self.acquire_database:
self.acquire_database()
self.save_criterion()
self.store_tree_state()
for node in nodes:
self.tag_tree.delete_subtree(unicode(node))
self.restore_criterion()
self.tags_changed_signal.emit()
def redraw_node(self, node):
"""When renaming a tag to the same name, we need to redraw the node
to show the card count again.
"""
# We do the redrawing in a rather hackish way now, simply by
# recreating the widget. Could be sped up, but at the expense of more
# complicated code.
self.save_criterion()
self.restore_criterion()
def rebuild(self):
"""To be called when external events invalidate the tag tree,
e.g. due to edits in the card browser widget.
"""
self.save_criterion()
self.store_tree_state()
self.tag_tree = TagTree(self.component_manager)
self.restore_criterion()
def closeEvent(self, event):
self.store_tree_state()
