class ModifIndex(QDialog, Ui_ModifIndex):
"""
This class is used to graphically configures indexation :
* its content
* its behaviour and the type of data which musts be indexed
It is composed of three tabs : Index, Advanced and Attributes.
The `Index` tab us composed of two main widgets :
* a NodeLinkTreeView, called `selectIndexItems`, connected to an instance
of a TreeModel (see api.gui.model.vfsitemmodel, class TreeModel
and api.gui.widget.nodeview, class NodeLinkTreeView).
It displays the tree view of the VFS' nodes, with checkboxes used to select
nodes the user wants to add in the index.
* a QTableWidget, called `indexedItems`, used to summarize the list of
already indexed nodes.
By checking / unchecking a nodes in the NodeLinkTreeView, it adds / removes
elements in the `indexedItems` view. If an element is unchecked and the `OK`
button clicked, the element will be removed from the index. On the contrary,
if an element is checked in the NodeLinkTreeView and the `OK` button clicked,
it will add it in the index ONLY if it was not already indexed.
Changed are applied when the `OK` button is clicked.
"""
def __init__(self, parent, model):
"""
Constructor.
Initialize parent, gui and translation. Connect signals.
"""
super(QDialog, self).__init__()
self.parent = parent
self.setupUi(self)
self.translation()
self.initTableWidget()
self.initMimeTypes()
self.indexed_items = {}
self.tmp_indexed_items = {}
self.un_index = {}
self.indexedItems.setColumnCount(2)
self.indexedItems.setRowCount(self.load_items())
self.model = TreeModel(self)
self.model.root_item = model.root_item
self.model.setCh(True)
self.selectIndexItems = NodeLinkTreeView(None, True)
self.selectIndexItems.setModel(self.model)
vbox = QVBoxLayout()
vbox.addWidget(self.selectIndexItems)
self.groupBox_5.setLayout(vbox)
self.connect(self.selectIndexItems, SIGNAL("nodeTreeClicked"), self.nodeTreeClicked)
self.connect(self.selectIndexItems.model(), SIGNAL("stateChanged"), self.selectNodeChanged)
self.connect(self.indexedItems, SIGNAL("itemChanged(QTableWidgetItem *)"), \
self.IAmBabarTheElephantKing)
self.connect(self.indexedItems, SIGNAL("itemClicked"), self.IAmBabarTheElephantKing)
def initTableWidget(self):
"""
Initialize the QTableWidget `indexedItems`. Set the headers.
"""
self.indexedItems.setColumnCount(2)
# set the headers' titles and stretch the last section
head1 = QTableWidgetItem(self.headIndexedItemTr)
head2 = QTableWidgetItem(self.headRecursivelyTr)
self.indexedItems.setHorizontalHeaderItem(0, head1)
self.indexedItems.setHorizontalHeaderItem(1, head2)
self.indexedItems.horizontalHeader().setStretchLastSection(True)
# hide vertical header and grid, remove editable mode
self.indexedItems.verticalHeader().hide()
self.indexedItems.setEditTriggers(QAbstractItemView.NoEditTriggers)
self.indexedItems.setShowGrid(False)
self.indexedItems.setAlternatingRowColors(True)
self.indexedItems.setSelectionBehavior(QAbstractItemView.SelectRows)
def load_items(self):
"""
Load items from the indexed_items list and add them in the
self.indexedItems QTableWidget.
"""
count = 0
# get the list of already indexed stuff and add them in the qtablewidget
# with a not-editable check box indicating if it has been indexed
# recursively or not
for i in self.indexed_items:
node = VFS.Get().getNodeFromPointer(long(i))
if node == None:
continue
recurse = self.indexed_items[i]
new_item = QTableWidgetItem(QIcon(":/folder.png"), node.name())
self.indexedItems.setRowCount(count + 1)
new_item.setData(Qt.UserRole + 1, QVariant(long(node.this)))
self.indexedItems.setItem(count, 0, new_item)
new_item2 = QTableWidgetItem()
new_item2.setFlags(Qt.ItemIsUserCheckable)
if recurse:
new_item2.setCheckState(Qt.Checked)
else:
new_item2.setCheckState(Qt.Unchecked)
self.indexedItems.setItem(count, 1, new_item2)
count += 1
return count
def initMimeTypes(self):
self.typesTree = MimeTypesTree(self.mimeTypeList)
self.mimeTypeList.setHeaderLabels([self.mimeTypeTr])
def selectNodeChanged(self, index):
"""
This slot is called when a node is checked / unchecked. Then, the method
`addNodeInIndexList` or `removeNodeFromIndexList` is called (of course
depending if it was checked of unchcked).
"""
if not index.isValid():
return
d = self.selectIndexItems.model().data(index, Qt.CheckStateRole)
if d == Qt.Checked:
self.addNodeInIndexList(index)
else:
self.removeNodeFromIndexList(index)
def addNodeInIndexList(self, index):
"""
Add the node wich pointer is index.data(QT.UserRole + 1) in the
indexedItems list.
"""
# get the node from the index
node_ptr = self.selectIndexItems.model().data(index, Qt.UserRole + 1)
if not node_ptr.isValid():
return
added_node = VFS.Get().getNodeFromPointer(node_ptr.toULongLong()[0])
# add the node.this into the selected items list
new_item = QTableWidgetItem(QIcon(":/folder.png"), added_node.name())
new_item.setData(Qt.UserRole + 1, QVariant(long(added_node.this)))
self.tmp_indexed_items[long(added_node.this)] = False
new_checkbox = QTableWidgetItem(1);
new_checkbox.data(Qt.CheckStateRole);
new_checkbox.setCheckState(Qt.Unchecked);
self.indexedItems.insertRow(0)
self.indexedItems.setItem(0, 0, new_item)
self.indexedItems.setItem(0, 1, new_checkbox)
def IAmBabarTheElephantKing(self, item):
if item.column() == 0:
return
row = item.row()
item_check = self.indexedItems.itemAt(row, 0)
data = item_check.data(Qt.UserRole + 1)
if not data.isValid():
return
ptr = data.toULongLong()[0]
try:
self.tmp_indexed_items[long(ptr)] = not self.tmp_indexed_items[long(ptr)]
except KeyError:
pass
def removeNodeFromIndexList(self, index):
"""
Remove the node wich pointer is index.data(QT.UserRole + 1) from the
indexedItems list.
"""
# get the node from the index (if one of them is invalid, returns)
if not index.isValid():
return
node_ptr = self.selectIndexItems.model().data(index, Qt.UserRole + 1)
if not node_ptr.isValid():
return
# get the ptr of the node and search for the it in the indexedItems list
ptr = node_ptr.toULongLong()[0]
# for each items in the indexed_list, check if the value is equal to
# `ptr`. If yes, remove the item from the QTableWidget self.indexedItems.
found = False
for i in range(0, len(self.indexed_items)):
item = self.indexedItems.item(i, 0)
if item != None:
value = item.data(Qt.UserRole + 1)
if value.isValid():
if value.toULongLong()[0] == ptr:
self.indexedItems.removeRow(i)
self.un_index[ptr] = self.indexed_items[ptr]
found = True
break
if not found:
for i in range(0, len(self.tmp_indexed_items)):
item = self.indexedItems.item(i, 0)
if item != None:
value = item.data(Qt.UserRole + 1)
if value.isValid():
if value.toULongLong()[0] == ptr:
self.indexedItems.removeRow(i)
break
# finally pop the item from the indexed_items or tmp_indexed_items map
try:
if not found:
self.tmp_indexed_items.pop(ptr)
except KeyError:
pass
def nodeTreeClicked(self, mouseButton, node, index = None):
"""
This slot is called when a node from the NodeLinkTreeView is clicked.
"""
self.selectIndexItems.model().setRootPath(node)
def translation(self):
"""
Used for the dynamic translations.
"""
self.headIndexedItemTr = self.tr("Indexed items")
self.headRecursivelyTr = self.tr("Recursively")
self.mimeTypeTr = self.tr("Mime types")
