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How to use rootItem method in fMBT

Best Python code snippet using fMBT_python

ProtocolTreeModel.py

Source:ProtocolTreeModel.py

1from PyQt5.QtCore import QAbstractItemModel, pyqtSignal, QModelIndex, Qt, QMimeData2from PyQt5.QtGui import QIcon, QFont3from PyQt5.QtWidgets import QMessageBox, QWidget4from urh.models.ProtocolTreeItem import ProtocolTreeItem5from urh.signalprocessing.ProtocolAnalyzer import ProtocolAnalyzer6from urh.signalprocessing.ProtocolGroup import ProtocolGroup7from urh.util.Logger import logger8class ProtocolTreeModel(QAbstractItemModel):9    item_dropped = pyqtSignal()10    group_deleted = pyqtSignal(int, int)11    proto_to_group_added = pyqtSignal(int)12    group_added = pyqtSignal(QModelIndex)13    def __init__(self, controller, parent=None):14        self.rootItem = ProtocolTreeItem(None, None)15        self.rootItem.addGroup()16        self.controller = controller17        super().__init__(parent)18    @property19    def protocols(self):20        """21        :rtype: dict[int, list of ProtocolAnalyzer]22        """23        result = {}24        for i, group in enumerate(self.rootItem.children):25            result[i] = [child.protocol for child in group.children]26        return result27    @property28    def ngroups(self):29        return self.rootItem.childCount()30    @property31    def groups(self):32        """33        :rtype: list of ProtocolGroup34        """35        return [self.group_at(i) for i in range(self.ngroups)]36    @property37    def protocol_tree_items(self):38        """39        :rtype: dict[int, list of ProtocolTreeItem]40        """41        result = {}42        for i, group in enumerate(self.rootItem.children):43            result[i] = [child for child in group.children]44        return result45    def group_at(self, index: int) -> ProtocolGroup:46        return self.rootItem.child(index).group47    def update(self):48        self.beginResetModel()49        self.endResetModel()50    def get_group_id_for_index(self, index: QModelIndex) -> int:51        item = self.getItem(index)52        if item.parent() == self.rootItem:53            return self.rootItem.index_of(item)54        elif item == self.rootItem:55            return self.ngroups - 1  # Last group when dropped on root56        else:57            return self.rootItem.index_of(item.parent())  # Item is Protocol58    def getItem(self, index: QModelIndex) -> ProtocolTreeItem:59        if index.isValid():60            item = index.internalPointer()61            if item:62                return item63        return self.rootItem64    def rowCount(self, parent: QModelIndex = None, *args, **kwargs):65        parent_item = self.getItem(parent)66        return parent_item.childCount()67    def columnCount(self, parent: QModelIndex = None, *args, **kwargs):68        return 169    def index(self, row: int, column: int, parent=None, *args, **kwargs):70        if parent is None:71            return QModelIndex()72        parent_item = self.getItem(parent)73        child_item = parent_item.child(row)74        if child_item:75            return self.createIndex(row, column, child_item)76        else:77            return QModelIndex()78    def parent(self, index: QModelIndex = None):79        if not index.isValid():80            return QModelIndex()81        child_item = self.getItem(index)82        try:83            parent_item = child_item.parent()84        except AttributeError:85            return QModelIndex()86        if parent_item == self.rootItem or parent_item is None:87            return QModelIndex()88        return self.createIndex(parent_item.indexInParent(), 0, parent_item)89    def data(self, index: QModelIndex, role=None):90        item = self.getItem(index)91        if role == Qt.DisplayRole:92            return item.data()93        elif role == Qt.DecorationRole and item.is_group:94            return QIcon.fromTheme("folder")95        elif role == Qt.CheckStateRole:96            return item.show97        elif role == Qt.FontRole:98            if item.is_group and self.rootItem.index_of(item) in self.controller.active_group_ids:99                font = QFont()100                font.setBold(True)101                return font102            elif item.protocol in self.controller.selected_protocols:103                font = QFont()104                font.setBold(True)105                return font106        elif role == Qt.ToolTipRole:107            return item.data()108    def setData(self, index: QModelIndex, value, role=None):109        item = self.getItem(index)110        if role == Qt.EditRole and len(value) > 0:111            item.setData(value)112            return True113        elif role == Qt.CheckStateRole:114            item.show = value115            return True116        return False117    def add_protocol(self, protocol: ProtocolAnalyzer, group_id=0):118        if group_id >= self.ngroups:119            group_id = 0120        self.beginResetModel()121        self.rootItem.child(group_id).addProtocol(protocol)122        self.endResetModel()123        self.proto_to_group_added.emit(group_id)124        return self.groups[group_id]125    def remove_protocol(self, protocol: ProtocolAnalyzer):126        self.beginResetModel()127        result = False128        for group in self.rootItem.children:129            if group.removeProtocol(protocol):130                result = True131                break132        self.endResetModel()133        return result134    def flags(self, index: QModelIndex):135        if not index.isValid():136            return Qt.ItemIsDropEnabled137        return Qt.ItemIsEditable | Qt.ItemIsEnabled | Qt.ItemIsSelectable | \138               Qt.ItemIsUserCheckable | Qt.ItemIsDragEnabled | Qt.ItemIsDropEnabled139    def supportedDragActions(self):140        return Qt.MoveAction | Qt.CopyAction141    def mimeTypes(self):142        return ['text/plain', 'text/uri-list']143    def mimeData(self, indexes):144        data = ''145        for index in indexes:146            parent_item = self.getItem(index.parent())147            if parent_item == self.rootItem:148                data += "{0},{1},{2}/".format(index.row(), index.column(), -1)149            else:150                data += "{0},{1},{2}/".format(index.row(), index.column(), self.rootItem.index_of(parent_item))151        mime_data = QMimeData()152        mime_data.setText(data)153        return mime_data154    def dropMimeData(self, mimedata, action, row, column, parentIndex):155        if action == Qt.IgnoreAction:156            return True157        data_str = str(mimedata.text())158        indexes = list(reversed(data_str.split("/")[:-1]))159        drag_nodes = []160        # Ensure we only drop groups or files161        contains_groups = False162        contains_files = False163        for index in indexes:164            row, column, parent = map(int, index.split(","))165            if parent == -1:166                parent = self.rootItem167            else:168                parent = self.rootItem.child(parent)169            node = parent.child(row)170            try:171                if node.is_group:172                    contains_groups = True173                else:174                    contains_files = True175            except AttributeError:176                logger.error("Could not perform drop for index {}".format(index))177                continue178            if contains_files and contains_groups:179                QMessageBox.information(QWidget(), self.tr("Drag not supported"),180                                        self.tr("You can only drag/drop groups or protocols, no mixtures of both."))181                return False182            drag_nodes.append(node)183        drop_node = self.getItem(parentIndex)184        if drop_node == self.rootItem:185            # Append to Last Group when dropped on root186            try:187                drop_node = self.rootItem.children[-1]188            except IndexError:189                return False190        if not drop_node.is_group:191            parent_node = drop_node.parent()192            dropped_on_group = False193        else:194            parent_node = drop_node195            dropped_on_group = True196        if parent_node is None:197            return False198        if dropped_on_group and contains_groups:199            parent_node = drop_node.parent()200            pos = parent_node.index_of(drop_node)201            parent_node.bringChildsToIndex(pos, drag_nodes)202        elif dropped_on_group:203            if parent_node.containsChilds(drag_nodes):204                # "Nodes on parent folder Dropped"205                parent_node.bringChildsToFront(drag_nodes)206            else:207                # "Nodes on distinct folder dropped"208                for dragNode in drag_nodes:209                    parent_node.appendChild(dragNode)210                self.proto_to_group_added.emit(self.rootItem.index_of(parent_node))211        else:212            # Dropped on file213            if contains_groups:214                # Cant drop groups on files215                return False216            elif parent_node.containsChilds(drag_nodes) and drop_node in parent_node.children:217                # "Nodes on node in parent folder dropped"218                pos = parent_node.index_of(drop_node)219                parent_node.bringChildsToIndex(pos, drag_nodes)220            elif parent_node.containsChilds(drag_nodes):221                parent_node.bringChildsToFront(drag_nodes)222            else:223                # "Nodes on node in distinct folder dropped"224                pos = parent_node.index_of(drop_node)225                for dragNode in drag_nodes:226                    dragNode.setParent(parent_node)227                    parent_node.insertChild(pos, dragNode)228                self.proto_to_group_added.emit(self.rootItem.index_of(parent_node))229        self.item_dropped.emit()230        return True231    def insertRow(self, row, parent=None, *args, **kwargs):232        return self.insertRows(row, 1, parent)233    def insertRows(self, row, count, parent=None, *args, **kwargs):234        self.beginInsertRows(parent, row, (row + (count - 1)))235        self.endInsertRows()236        return True237    def removeRow(self, row, parentIndex=None, *args, **kwargs):238        return self.removeRows(row, 1, parentIndex)239    def removeRows(self, row, count, parentIndex=None, *args, **kwargs):240        self.beginRemoveRows(parentIndex, row, row)241        node = self.getItem(parentIndex)242        node.removeAtIndex(row)243        self.endRemoveRows()244        return True245    def addGroup(self, name="New group"):246        self.rootItem.addGroup(name)247        child_nr = self.rootItem.childCount() - 1248        self.group_added.emit(self.createIndex(child_nr, 0, self.rootItem.child(child_nr)))249    def delete_group(self, group_item: ProtocolTreeItem):250        if self.rootItem.childCount() == 1:251            QMessageBox.critical(self.controller, self.tr("Group not deletable"),252                                 self.tr(253                                     "You can't delete the last group. Think about the children, they would be homeless!"))254            return255        group_id = self.rootItem.index_of(group_item)256        if group_id == 0:257            new_group_index = 1258        else:259            new_group_index = group_id - 1260        new_group = self.rootItem.children[new_group_index]261        for i in reversed(range(group_item.childCount())):262            new_group.appendChild(group_item.children[i])263        self.removeRow(group_id, QModelIndex())264        self.group_deleted.emit(group_id, new_group_index)265    def move_to_group(self, items, new_group_id: int):266        """267        :type items: list of ProtocolTreeItem268        """269        group = self.rootItem.child(new_group_id)270        for item in items:271            group.appendChild(item)272        self.controller.refresh()273    def sort_group(self, sortgroup_id):274        self.blockSignals(True)275        self.rootItem.child(sortgroup_id).sortChilds()276        self.controller.refresh()277        self.blockSignals(False)278    def set_copy_mode(self, use_copy: bool):279        """280        Set all protocols in copy mode. They will return a copy of their protocol.281        This is used for writable mode in CFC.282        :param use_copy:283        :return:284        """285        for group in self.rootItem.children:286            for proto in group.children:...

tree.py

Source:tree.py

1from .table import Columns2from dict import Dict3from PySide2.QtCore import QModelIndex, Qt, QAbstractItemModel4class Item():5    def __init__(self, data, kwchildren='children', tree=None):6        self.parent = None7        self.children = list()8        self.tree = tree9        if data is not None and isinstance(data, Dict):10            if kwchildren in data:11                for child in data[kwchildren]:12                    child = Item(child, kwchildren, tree)13                    child.parent = self14                    self.children.append(child)15        self._data = data16    @property17    def data(self):18        return self._data19    @data.setter20    def data(self, data):21        self._data = data22    def appendChild(self, child):23        if not isinstance(child, Item):24            child = Item(child, self.tree.kwchildren, self.tree)25            child.parent = self26        self.children.append(child)27    def childCount(self):28        return len(self.children)29    def columnCount(self):30        if self.tree is not None and isinstance(self.tree, Tree):31            return len(self.tree.columns)32        else:33            return 034    def child(self, index):35        if len(self.children) > index:36            return self.children[index]37        else:38            return None39    def row(self):40        if self.parent is not None:41            return self.parent.children.index(self)42        else:43            return 044class Tree(QAbstractItemModel):45    def __init__(self):46        QAbstractItemModel.__init__(self)47        self.columns = Columns(self)48        self.classitem = Item49        self._rootitem = None50        self.kwchildren = 'children'51    def rowCount(self, parent):52        if not parent.isValid():53            parentItem = self.rootitem54        else:55            parentItem = parent.internalPointer()56        if parentItem is not None:57            return parentItem.childCount()58        else:59            return 060    def columnCount(self, parent=None):61        return len(self.columns)62    @property63    def rootitem(self):64        return self._rootitem65    @rootitem.setter66    def rootitem(self, rootitem):67        if not isinstance(rootitem, self.classitem):68            rootitem = self.classitem(rootitem, self.kwchildren, tree=self)69        self._rootitem = rootitem70        self.notify_update_all()71    def notify_update_all(self):72        self.modelReset.emit()73    @property74    def datasoure(self):75        if self.rootitem is not None and isinstance(self.rootitem, self.classitem):76            return self.rootitem.data.children77        else:78            return None79    def index(self, row, column, parent):80        if not parent.isValid():81            parentItem = self.rootitem82        else:83            parentItem = parent.internalPointer()84        childItem = parentItem.child(row)85        if childItem:86            return self.createIndex(row, column, childItem)87        else:88            return QModelIndex()89    def parent(self, index):90        if not index.isValid():91            return QModelIndex()92        childItem = index.internalPointer()93        parentItem = childItem.parent94        if parentItem == self.rootitem:95            return QModelIndex()96        else:97            return self.createIndex(parentItem.row(), 0, parentItem)98    def headerData(self, section, orientation, role=Qt.DisplayRole):99        if orientation == Qt.Horizontal and role == Qt.DisplayRole:100            column = self.columns[section]101            if column.name is not None:102                return column.name103            else:104                return column.fieldname105    def data(self, index, role=Qt.DisplayRole):106        if not index.isValid() or role != Qt.DisplayRole:107            return None108        item = index.internalPointer()109        column = self.columns[index.column()]110        data = column.get_data(item.data)111        if data is not None:...

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