def _load(filePath):
# type: (pathlib.Path) -> NoReturn
with itemsLock:
icon = self.__iconsCache.get(filePath)
if icon is None:
iconProvider = QFileIconProvider()
posixPath = filePath.as_posix()
file = QFileInfo(posixPath)
icon = iconProvider.icon(file)
if icon.isNull():
mimeDb = QMimeDatabase()
for mime in mimeDb.mimeTypesForFileName(posixPath):
icon = QIcon.fromTheme(mime.iconName())
if not icon.isNull():
break
result = QFileIconLoader.LoadResult(filePath, icon)
with itemsLock:
loadedItems[filePath] = result
self.__iconsCache.set(filePath, icon)
self.loaded.emit(result)
if len(loadedItems) == len(targetPaths):
self.completed.emit(loadedItems)
def setupModelData(self, parent):
parents = [parent]
numAssets = rt.AssetManager.getNumAssets()
# For each asset (row)
for i in range(1, numAssets + 1):
# Get the asset object
asset = rt.AssetManager.getAssetByIndex(i)
# Get the asset properties
assetFilename = asset.GetFilename()
assetBasename = os.path.basename(assetFilename)
assetName = os.path.splitext(assetBasename)[0]
assetPath = os.path.dirname(assetFilename)
assetExt = os.path.splitext(assetBasename)[1]
if assetExt == "":
continue
assetType = str(asset.GetType())
assetStatus = os.path.exists(assetFilename)
if (assetStatus):
assetSize = os.path.getsize(assetFilename)
else:
assetSize = 0
# We'll use QFileIconProvider to grab the icon that the OS
# is currently using to grab the icon to display in the view
fileInfo = QtCore.QFileInfo(assetFilename)
iconProvider = QFileIconProvider()
assetIcon = iconProvider.icon(fileInfo)
# Read the column data from the rest of the line.
columnData = [
assetName, assetExt, assetPath, assetType,
os.path.exists(assetFilename), assetSize
]
# Append a new node to the root
parent = parents[-1]
parent.insertChildren(parent.childCount(), 1,
self._rootItem.columnCount())
node = parent.child(parent.childCount() - 1)
# Fill each column in the current row
for column in range(len(columnData)):
node.setData(column, columnData[column])
node.setIcon(assetIcon)
def __init__(self, parent):
super().__init__(parent)
iconProvider = QFileIconProvider()
self.__defaultIcon = iconProvider.icon(QFileIconProvider.Folder)
self.__driveIcon = iconProvider.icon(QFileIconProvider.Drive)
class FolderListModel(QAbstractTableModel):
"""
This class provides a model for browsing a folder.
"""
folderChanged = Signal(str) # emitted when the folder changes
def __init__(self, parent):
super().__init__(parent=parent)
self._folder = None
self._filter = "*"
self._children = []
self._iconProvider = QFileIconProvider()
self._reset(self._folder, self._filter)
def setFolder(self, folder):
"""
set the folder of this browser
:param folder: a Path or string instance
:return:
"""
if Path(folder) != self._folder:
self._reset(folder, self._filter)
def setFilter(self, flt):
"""
Set the filter of this browser
:param flt: string or a list of strings containing glob-style patterns
:return:
"""
if isinstance(flt, str):
flt = [flt]
self._reset(self._folder, flt)
def fileToIndex(self, filename):
"""
return the given file name to a model index.
:param filename: a string or Path instance
:return: a QModelIndex instance
"""
filename = Path(filename)
try:
idx = self._children.index(filename)
return self.createIndex(idx, 0)
except ValueError:
return QModelIndex()
def _match(self, path):
if path.is_dir():
return True
res = QDir.match(self._filter, path.name)
return res
def _reset(self, folder, flt):
self.beginRemoveRows(QModelIndex(), 0, self.rowCount() - 1)
self._folder = None
self.endRemoveRows()
if folder is not None:
listDrives = False
f = Path(folder).resolve()
if platform.system() == "Windows":
folder = Path(folder)
if folder.name == ".." and folder.parent == Path(folder.drive +
"/"):
listDrives = True
f = Path("<Drives>")
self._folder = f
self._filter = flt
if platform.system() == "Windows":
if listDrives:
self._children = [
Path("%s:/" % dl) for dl in string.ascii_uppercase
if Path("%s:/" % dl).exists()
]
else:
self._children = [f / ".."]
else:
self._children = ([] if f.root == f else [f / ".."])
if not listDrives:
self._children += [x for x in f.glob("*") if self._match(x)]
self._children.sort(key=lambda c: (c.is_file(
), c.drive, int(c.name != ".."), c.name))
self.beginInsertRows(QModelIndex(), 0, len(self._children) - 1)
self.endInsertRows()
if listDrives:
self.folderChanged.emit("<Drives>")
else:
self.folderChanged.emit(
str(self._folder) +
(os.path.sep if self._folder.is_dir() else ""))
def folder(self):
"""
Return the current folder.
:return: a Path instance
"""
return self._folder
def filter(self):
"""
Return the current filter
:return: a list of strings
"""
return self._filter
def columnCount(self, index=QModelIndex()): # pylint: disable=unused-argument
"""
overwritten from base class
:param index:
:return:
"""
return 4
def rowCount(self, index=QModelIndex()): # pylint: disable=unused-argument
"""
overwritten from base class
:param index:
:return:
"""
return len(self._children)
def data(self, index, role):
"""
overwritten from base class
:param index:
:param role:
:return:
"""
c = self._children[index.row()]
if role == Qt.DisplayRole:
if index.column() == 0:
return c.name if c.name != "" else str(c)
if index.column() == 1:
if c.is_dir():
return ""
try:
s = c.stat().st_size
except Exception: # pylint: disable=broad-except
return ""
if s >= 1024 * 1024 * 1024:
return "%.0f GB" % (s / (1024 * 1024 * 1024))
if s >= 1024 * 1024:
return "%.0f MB" % (s / (1024 * 1024))
if s >= 1024:
return "%.0f kB" % (s / 1024)
return s
if index.column() == 2:
try:
return QDateTime.fromMSecsSinceEpoch(c.stat().st_mtime *
1000)
except Exception: # pylint: disable=broad-except
return ""
if role == Qt.DecorationRole:
if index.column() == 0:
if c.is_dir():
return self._iconProvider.icon(QFileIconProvider.Drive)
return self._iconProvider.icon(QFileInfo(str(c.absolute())))
if role == Qt.UserRole:
if index.column() == 0:
return c
if role in [Qt.DisplayRole, Qt.EditRole]:
if index.column() == 3:
if index.row() > 0:
return str(c) + (os.path.sep if c.is_dir() else "")
return str(c.parent) + os.path.sep
return None
def headerData(self, section, orientation, role):
"""
overwritten from base class
:param section:
:param orientation:
:param role:
:return:
"""
if orientation == Qt.Horizontal and role == Qt.DisplayRole:
return ["Name", "Size", "Time", ""][section]
return super().headerData(section, orientation, role)
class SD_FS_Model(QAbstractItemModel):
def __init__(self, parent=None, *args):
super().__init__(parent, *args)
self.root = FS_Item("/")
self.header_labels = ['Name', 'Children']
self.icon_provider = QFileIconProvider()
# return an index for the given row/column pair and the parent element
# this index is then used by views to access data
def index(self,
row: int,
column: int,
parent: QModelIndex = None) -> QModelIndex:
if not parent or not parent.isValid():
parent_item = self.root
else:
parent_item = parent.internalPointer()
# check if row is valid
if row >= parent_item.child_count():
return QModelIndex()
child_item = parent_item.child(row)
# check if column is valid for child
if column >= child_item.column_count():
return QModelIndex()
# return the valid index for the childs column
return self.createIndex(row, column, child_item)
def parent(self, index: QModelIndex = None) -> QModelIndex:
if not index.isValid():
return QModelIndex()
child_item = index.internalPointer()
parent_item = child_item.parent()
# return invalid index if we hit root
if parent_item == self.root:
return QModelIndex()
return self.createIndex(parent_item.row(), 0, parent_item)
# returns the amount of nested rows aka children for the parent item the index identifies
def rowCount(self, parent: QModelIndex = None) -> int:
# if the column count is nonzero we return
# indices that identify a node/row and not a value/field have column=0 by convention
if parent is not None and parent.column() > 0:
return 0
if not parent or not parent.isValid():
parent_item = self.root
else:
parent_item = parent.internalPointer()
return parent_item.child_count()
# returns the number of columns available for an index
def columnCount(self, index: QModelIndex = None) -> int:
# for now, we accept indices with column>0, as there is no drawback
if index is not None and index.isValid():
return index.internalPointer().column_count()
return self.root.column_count()
# returns the value of the data attribute mapped to the column
# column mapping is done in the respective class the CanItem holds
# via the column_representation classmethod
def data(self, index: QModelIndex, role: int = None):
# we return None for root data or roles we dont serve
if not index.isValid():
return None
if role == Qt.DecorationRole and index.column() == 0:
if index.internalPointer().dir:
return self.icon_provider.icon(QFileIconProvider.Folder)
else:
return self.icon_provider.icon(QFileIconProvider.File)
elif role == Qt.DisplayRole:
# we get the desired data by calling the CanItems data() function
# that then calls the held objects get_data function
return index.internalPointer().data(index.column())
return None
def flags(self, index: QModelIndex) -> Qt.ItemFlags:
if not index.isValid():
return Qt.NoItemFlags
return Qt.ItemIsEnabled | Qt.ItemIsSelectable
# returns header labeling, atm just copied from the table model
def headerData(self, section, orientation, role: Qt.DisplayRole = None):
if role == Qt.DisplayRole and orientation == Qt.Orientation.Horizontal:
return self.header_labels[section]
return QAbstractTableModel.headerData(self, section, orientation, role)
def add_item(self, index: QModelIndex, name: str, is_dir: bool):
# find the parent
if index is None or not index.isValid():
parent_item = self.root
else:
parent_item = index.internalPointer()
item = FS_Item(name, is_dir=is_dir, parent=parent_item)
# send insert signals and append child
if index is not None:
self.beginInsertRows(index, parent_item.child_count(),
parent_item.child_count())
parent_item.append_child(item)
self.endInsertRows()
else:
print(f"heres the bug: \n {item.name} \n {item.get_filepath()}")
def remove_item(self, index: QModelIndex):
# cant remove root
if index is None or not index.isValid():
return
# retrieve parameters fo signal call
parent_item = index.internalPointer().parent()
parent_index = self.parent(index)
row = index.row()
# remove child from parent
self.beginRemoveRows(parent_index, row, row)
parent_item.remove_child(row)
self.endRemoveRows()
def child_index_by_name(self, parent_index: QModelIndex,
name: str) -> QModelIndex:
if not parent_index.isValid():
parent = self.root
else:
parent = parent_index.internalPointer()
for child in parent.children:
if child.name == name:
return self.createIndex(child.row(), 0, child)
# no child has the name -> return invalid Index
return QModelIndex()
# search through the items according to the given directory path and return index to end of path
def index_for_path(self, path: str) -> QModelIndex:
# return an invalid index for the root
if path == "/":
return QModelIndex()
slash1 = 0
slash2 = path.find("/", slash1 + 1)
if slash2 == -1:
directory = path[slash1 + 1:]
else:
directory = path[slash1 + 1:slash2]
path_end_index = self.child_index_by_name(QModelIndex(), directory)
while True:
if not path_end_index.isValid():
# subdirectory not found, return None
return None
# go deeper if we have a longer path
if slash2 != -1:
slash1 = slash2
slash2 = path.find("/", slash1 + 1)
else:
return path_end_index
if slash2 == -1:
directory = path[slash1 + 1:]
else:
directory = path[slash1 + 1:slash2]
path_end_index = self.child_index_by_name(path_end_index,
directory)
def is_filled(self) -> bool:
return self.root.child_count() > 0