bellos_application_manager/gui/file_explorer.py

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Python
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2024-10-22 04:09:16 +00:00
# Copyright (C) 2024 Bellande Application Interoperability Xenogen Research Innovation Center, Ronaldson Bellande
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import os
from PyQt6.QtWidgets import QTreeView, QAbstractItemView
from PyQt6.QtCore import Qt, pyqtSignal
from PyQt6.QtGui import QStandardItemModel, QStandardItem
from typing import Optional
class FileExplorer(QTreeView):
file_selected = pyqtSignal(str)
_model: Optional[QStandardItemModel]
def __init__(self):
super().__init__()
self._model = None
self.current_path = ""
self.setup_ui()
def setup_ui(self):
# Create and set up the model
self._model = QStandardItemModel(parent=self)
self._model.setHorizontalHeaderLabels(['Name'])
# Set up the tree view
super().setModel(self._model)
self.setAnimated(False)
self.setIndentation(20)
self.setSortingEnabled(True)
self.setSelectionMode(QAbstractItemView.SelectionMode.SingleSelection)
# Connect signals
self.clicked.connect(self.on_item_clicked)
def populate_tree(self, path: str, parent_item: Optional[QStandardItem] = None) -> None:
if parent_item is None and self._model is not None:
self._model.clear()
self._model.setHorizontalHeaderLabels(['Name'])
parent_item = self._model.invisibleRootItem()
try:
# List directory contents
items = os.listdir(path)
# Sort items: directories first, then files
dirs = sorted([item for item in items if os.path.isdir(os.path.join(path, item))])
files = sorted([item for item in items if os.path.isfile(os.path.join(path, item))])
# Add directories
for dir_name in dirs:
dir_path = os.path.join(path, dir_name)
try:
item = QStandardItem(dir_name)
item.setData(dir_path, Qt.ItemDataRole.UserRole)
if parent_item:
parent_item.appendRow(item)
except Exception:
continue
# Add files
for file_name in files:
file_path = os.path.join(path, file_name)
try:
item = QStandardItem(file_name)
item.setData(file_path, Qt.ItemDataRole.UserRole)
if parent_item:
parent_item.appendRow(item)
except Exception:
continue
except PermissionError:
pass
except Exception:
pass
def on_item_clicked(self, index):
if self._model is None:
return
item = self._model.itemFromIndex(index)
if item:
path = item.data(Qt.ItemDataRole.UserRole)
if os.path.isdir(path):
if self.isExpanded(index):
self.collapse(index)
else:
item.removeRows(0, item.rowCount())
self.populate_tree(path, item)
self.expand(index)
else:
self.file_selected.emit(path)
def set_root_path(self, path: str) -> None:
if os.path.exists(path):
self.current_path = path
self.populate_tree(path)
def refresh(self) -> None:
if self.current_path:
self.populate_tree(self.current_path)