我想在树视图中使用 QFileSystemModel 吗？
I want to get working QFileSystemModel in Tree view?
我正在制作一个我想要一个 FileTree 的程序（我已经有了这个但 QfileSystemMoodel 没有，这使得以后做事变得更难）。在这里，我必须能够使用活动文件夹中输入的文件名（这有效）录制一些声音（我还不能 select 所以现在是硬编码的）然后文件树必须是更新。我更喜欢为此使用 QFileSystemModel，因为它可以让之后的编辑变得更容易。
所以我的问题是：带有 QFileSystemModel 的树视图，活动/selected 路径作为记录位置并在记录或其他修改后更新。
这个我已经试过了，但是我不能让它工作，我不需要过滤器：
import os, sys
import sounddevice as sd
from scipy.io.wavfile import write
from PyQt5 import QtCore, QtGui, QtWidgets, uic
from PyQt5.QtWidgets import QTreeWidgetItem, QFileSystemModel
from pathlib import Path
qtcreator_file = "mainwindow.ui" # Enter file here.
Ui_MainWindow, QtBaseClass = uic.loadUiType(qtcreator_file)
class MyWindow(QtWidgets.QMainWindow, QtWidgets.QFileSystemModel, Ui_MainWindow):
def __init__(self):
QtWidgets.QMainWindow.__init__(self, parent=None)
Ui_MainWindow.__init__(self)
QtGui.QFileSystemModel.__init__(self, None)
self.checks = {}
self.FileStruckture
self.setupUi(self)
self.opnemen.clicked.connect(self.capture)
def data(self, index, role=QtCore.Qt.DisplayRole):
if role != QtCore.Qt.CheckStateRole:
return QtGui.QFileSystemModel.data(self, index, role)
else:
if index.column() == 0:
return self.checkState(index)
def flags(self, index):
return QtGui.QFileSystemModel.flags(self, index) | QtCore.Qt.ItemIsUserCheckable
def checkState(self, index):
if index in self.checks:
return self.checks[index]
else:
return QtCore.Qt.Checked
def setData(self, index, value, role):
if (role == QtCore.Qt.CheckStateRole and index.column() == 0):
self.checks[index] = value
self.emit(QtCore.SIGNAL("dataChanged(QModelIndex,QModelIndex)"), index, index)
return True
return QtGui.QFileSystemModel.setData(self, index, value, role)
self.dirTreeView = QtWidgets.QTreeWidget(self.FileStruckture)
self.dirModel = CheckableDirModel()
self.dirTreeView.setModel(self.dirModel)
def capture(self):
fs = 44100 # Sample rate
seconds = 6 # Duration of recording
myrecording = sd.rec(int(seconds * fs), samplerate=fs, channels=2)
sd.wait() # Wait until recording is finished
locatie = "D:/DemoGIPhoofdmap/bedrijf 08"
locatiepath = Path(locatie)
file_name = "/" + (self.filename.text()) + ".wav"
write_path = locatie + file_name
write(write_path, fs, myrecording) # Save as WAV file
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
window = MyWindow()
window.show()
sys.exit(app.exec_())
这最有效，但它不适用于 QFileSystemMoodel，它不会更新，我无法从中获取活动路径：
import os, sys
import sounddevice as sd
from scipy.io.wavfile import write
from PyQt5 import QtCore, QtGui, QtWidgets, uic
from PyQt5.QtWidgets import QTreeWidgetItem
from PyQt5.QtGui import QIcon
from pathlib import Path
qtcreator_file = "mainwindow.ui" # Enter file here.
Ui_MainWindow, QtBaseClass = uic.loadUiType(qtcreator_file)
class MyWindow(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self):
QtWidgets.QMainWindow.__init__(self)
Ui_MainWindow.__init__(self)
self.setupUi(self)
self.FileStruckture
self.file_tree("D:/DemoGIPhoofdmap", self.FileStruckture)
self.opnemen.clicked.connect(self.capture)
def file_tree(self, startpath, tree):
startpath = Path(startpath)
for element in os.listdir(startpath):
path_info = startpath / element
parent_itm = QTreeWidgetItem(tree, [os.path.basename(element)])
if os.path.isdir(path_info):
self.file_tree(path_info, parent_itm)
parent_itm.setIcon(0, QIcon('assets/folder.ico'))
else:
parent_itm.setIcon(0, QIcon('assets/file.ico'))
def capture(self):
fs = 44100 # Sample rate
seconds = 6 # Duration of recording
myrecording = sd.rec(int(seconds * fs), samplerate=fs, channels=2)
sd.wait() # Wait until recording is finished
locatie = "D:/DemoGIPhoofdmap/bedrijf 08"
locatiepath = Path(locatie)
file_name = "/" + (self.filename.text()) + ".wav"
write_path = locatie + file_name
write(write_path, fs, myrecording) # Save as WAV file
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
window = MyWindow()
window.show()
sys.exit(app.exec_())
这是来自 QT Creator
的 XML 代码
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>827</width>
<height>622</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<widget class="QPushButton" name="opnemen">
<property name="geometry">
<rect>
<x>320</x>
<y>60</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Capture</string>
</property>
</widget>
<widget class="QPushButton" name="importeer">
<property name="geometry">
<rect>
<x>400</x>
<y>60</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Inport</string>
</property>
</widget>
<widget class="QTreeWidget" name="FileStruckture">
<property name="geometry">
<rect>
<x>10</x>
<y>10</y>
<width>301</width>
<height>561</height>
</rect>
</property>
</widget>
<widget class="QLabel" name="label">
<property name="geometry">
<rect>
<x>320</x>
<y>10</y>
<width>131</width>
<height>16</height>
</rect>
</property>
<property name="text">
<string>File name for new item:</string>
</property>
</widget>
<widget class="QLineEdit" name="filename">
<property name="geometry">
<rect>
<x>320</x>
<y>30</y>
<width>151</width>
<height>20</height>
</rect>
</property>
</widget>
<widget class="QPushButton" name="nieuwemap">
<property name="geometry">
<rect>
<x>320</x>
<y>90</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>New folder</string>
</property>
</widget>
<widget class="QPushButton" name="verwijderen">
<property name="geometry">
<rect>
<x>320</x>
<y>120</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Delete</string>
</property>
</widget>
<widget class="QPushButton" name="hernoem">
<property name="geometry">
<rect>
<x>400</x>
<y>90</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Rename</string>
</property>
</widget>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>827</width>
<height>21</height>
</rect>
</property>
</widget>
<widget class="QStatusBar" name="statusbar"/>
</widget>
<resources/>
<connections/>
</ui>
如果你想使用 QFileSystemModel，你必须使用 QTreeView，但是你的 .ui 没有实现它，所以修改你的 .ui。另一方面，sd.wait() 阻塞会冻结 GUI，以避免必须在另一个线程中执行此任务。
综合以上，解决方案是：
*.ui
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>615</width>
<height>598</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<layout class="QHBoxLayout" name="horizontalLayout">
<item>
<widget class="QTreeView" name="filestruckture"/>
</item>
<item>
<layout class="QGridLayout" name="gridLayout">
<item row="1" column="0" colspan="2">
<widget class="QLineEdit" name="filename"/>
</item>
<item row="3" column="0">
<widget class="QPushButton" name="nieuwemap">
<property name="text">
<string>New folder</string>
</property>
</widget>
</item>
<item row="4" column="0">
<widget class="QPushButton" name="verwijderen">
<property name="text">
<string>Delete</string>
</property>
</widget>
</item>
<item row="2" column="1">
<widget class="QPushButton" name="importeer">
<property name="text">
<string>Inport</string>
</property>
</widget>
</item>
<item row="0" column="0" colspan="2">
<widget class="QLabel" name="label">
<property name="text">
<string>File name for new item:</string>
</property>
</widget>
</item>
<item row="3" column="1">
<widget class="QPushButton" name="hernoem">
<property name="text">
<string>Rename</string>
</property>
</widget>
</item>
<item row="2" column="0">
<widget class="QPushButton" name="opnemen">
<property name="text">
<string>Capture</string>
</property>
</widget>
</item>
<item row="5" column="0">
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
</layout>
</item>
</layout>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>615</width>
<height>30</height>
</rect>
</property>
</widget>
<widget class="QStatusBar" name="statusbar"/>
</widget>
<resources/>
<connections/>
</ui>
*.py
import os
import sys
from pathlib import Path
from functools import partial
import sounddevice as sd
from scipy.io.wavfile import write
from PyQt5 import QtCore, QtGui, QtWidgets, uic
qtcreator_file = "mainwindow.ui" # Enter file here.
Ui_MainWindow, QtBaseClass = uic.loadUiType(qtcreator_file)
class CaptureWorker(QtCore.QObject):
started = QtCore.pyqtSignal()
finished = QtCore.pyqtSignal()
@QtCore.pyqtSlot(str)
def save_to(self, path):
self.started.emit()
fs = 44100 # Sample rate
seconds = 6 # Duration of recording
myrecording = sd.rec(int(seconds * fs), samplerate=fs, channels=2)
sd.wait()
write(path, fs, myrecording)
self.finished.emit()
class MyWindow(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self, parent=None):
super(MyWindow, self).__init__(parent)
self.setupUi(self)
self.root_path = "D:/DemoGIPhoofdmap/bedrijf 08"
model = QtWidgets.QFileSystemModel(self)
self.filestruckture.setModel(model)
model.setRootPath(self.root_path)
self.filestruckture.setRootIndex(model.index(model.rootPath()))
thread = QtCore.QThread(self)
thread.start()
self.capture_worker = CaptureWorker()
self.capture_worker.moveToThread(thread)
self.capture_worker.started.connect(partial(self.opnemen.setEnabled, False))
self.capture_worker.finished.connect(partial(self.opnemen.setEnabled, True))
self.opnemen.clicked.connect(self.capture)
def capture(self):
name = self.filename.text()
if name:
locatie = self.root_path
locatiepath = Path(locatie)
file_name = os.path.join(locatiepath, name + ".wav")
wrapper = partial(self.capture_worker.save_to, file_name)
QtCore.QTimer.singleShot(0, wrapper)
else:
print("set the filename")
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
window = MyWindow()
window.show()
sys.exit(app.exec_())
我正在制作一个我想要一个 FileTree 的程序（我已经有了这个但 QfileSystemMoodel 没有，这使得以后做事变得更难）。在这里，我必须能够使用活动文件夹中输入的文件名（这有效）录制一些声音（我还不能 select 所以现在是硬编码的）然后文件树必须是更新。我更喜欢为此使用 QFileSystemModel，因为它可以让之后的编辑变得更容易。
所以我的问题是：带有 QFileSystemModel 的树视图，活动/selected 路径作为记录位置并在记录或其他修改后更新。
这个我已经试过了，但是我不能让它工作，我不需要过滤器：
import os, sys
import sounddevice as sd
from scipy.io.wavfile import write
from PyQt5 import QtCore, QtGui, QtWidgets, uic
from PyQt5.QtWidgets import QTreeWidgetItem, QFileSystemModel
from pathlib import Path
qtcreator_file = "mainwindow.ui" # Enter file here.
Ui_MainWindow, QtBaseClass = uic.loadUiType(qtcreator_file)
class MyWindow(QtWidgets.QMainWindow, QtWidgets.QFileSystemModel, Ui_MainWindow):
def __init__(self):
QtWidgets.QMainWindow.__init__(self, parent=None)
Ui_MainWindow.__init__(self)
QtGui.QFileSystemModel.__init__(self, None)
self.checks = {}
self.FileStruckture
self.setupUi(self)
self.opnemen.clicked.connect(self.capture)
def data(self, index, role=QtCore.Qt.DisplayRole):
if role != QtCore.Qt.CheckStateRole:
return QtGui.QFileSystemModel.data(self, index, role)
else:
if index.column() == 0:
return self.checkState(index)
def flags(self, index):
return QtGui.QFileSystemModel.flags(self, index) | QtCore.Qt.ItemIsUserCheckable
def checkState(self, index):
if index in self.checks:
return self.checks[index]
else:
return QtCore.Qt.Checked
def setData(self, index, value, role):
if (role == QtCore.Qt.CheckStateRole and index.column() == 0):
self.checks[index] = value
self.emit(QtCore.SIGNAL("dataChanged(QModelIndex,QModelIndex)"), index, index)
return True
return QtGui.QFileSystemModel.setData(self, index, value, role)
self.dirTreeView = QtWidgets.QTreeWidget(self.FileStruckture)
self.dirModel = CheckableDirModel()
self.dirTreeView.setModel(self.dirModel)
def capture(self):
fs = 44100 # Sample rate
seconds = 6 # Duration of recording
myrecording = sd.rec(int(seconds * fs), samplerate=fs, channels=2)
sd.wait() # Wait until recording is finished
locatie = "D:/DemoGIPhoofdmap/bedrijf 08"
locatiepath = Path(locatie)
file_name = "/" + (self.filename.text()) + ".wav"
write_path = locatie + file_name
write(write_path, fs, myrecording) # Save as WAV file
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
window = MyWindow()
window.show()
sys.exit(app.exec_())
这最有效，但它不适用于 QFileSystemMoodel，它不会更新，我无法从中获取活动路径：
import os, sys
import sounddevice as sd
from scipy.io.wavfile import write
from PyQt5 import QtCore, QtGui, QtWidgets, uic
from PyQt5.QtWidgets import QTreeWidgetItem
from PyQt5.QtGui import QIcon
from pathlib import Path
qtcreator_file = "mainwindow.ui" # Enter file here.
Ui_MainWindow, QtBaseClass = uic.loadUiType(qtcreator_file)
class MyWindow(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self):
QtWidgets.QMainWindow.__init__(self)
Ui_MainWindow.__init__(self)
self.setupUi(self)
self.FileStruckture
self.file_tree("D:/DemoGIPhoofdmap", self.FileStruckture)
self.opnemen.clicked.connect(self.capture)
def file_tree(self, startpath, tree):
startpath = Path(startpath)
for element in os.listdir(startpath):
path_info = startpath / element
parent_itm = QTreeWidgetItem(tree, [os.path.basename(element)])
if os.path.isdir(path_info):
self.file_tree(path_info, parent_itm)
parent_itm.setIcon(0, QIcon('assets/folder.ico'))
else:
parent_itm.setIcon(0, QIcon('assets/file.ico'))
def capture(self):
fs = 44100 # Sample rate
seconds = 6 # Duration of recording
myrecording = sd.rec(int(seconds * fs), samplerate=fs, channels=2)
sd.wait() # Wait until recording is finished
locatie = "D:/DemoGIPhoofdmap/bedrijf 08"
locatiepath = Path(locatie)
file_name = "/" + (self.filename.text()) + ".wav"
write_path = locatie + file_name
write(write_path, fs, myrecording) # Save as WAV file
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
window = MyWindow()
window.show()
sys.exit(app.exec_())
这是来自 QT Creator
的 XML 代码<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>827</width>
<height>622</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<widget class="QPushButton" name="opnemen">
<property name="geometry">
<rect>
<x>320</x>
<y>60</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Capture</string>
</property>
</widget>
<widget class="QPushButton" name="importeer">
<property name="geometry">
<rect>
<x>400</x>
<y>60</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Inport</string>
</property>
</widget>
<widget class="QTreeWidget" name="FileStruckture">
<property name="geometry">
<rect>
<x>10</x>
<y>10</y>
<width>301</width>
<height>561</height>
</rect>
</property>
</widget>
<widget class="QLabel" name="label">
<property name="geometry">
<rect>
<x>320</x>
<y>10</y>
<width>131</width>
<height>16</height>
</rect>
</property>
<property name="text">
<string>File name for new item:</string>
</property>
</widget>
<widget class="QLineEdit" name="filename">
<property name="geometry">
<rect>
<x>320</x>
<y>30</y>
<width>151</width>
<height>20</height>
</rect>
</property>
</widget>
<widget class="QPushButton" name="nieuwemap">
<property name="geometry">
<rect>
<x>320</x>
<y>90</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>New folder</string>
</property>
</widget>
<widget class="QPushButton" name="verwijderen">
<property name="geometry">
<rect>
<x>320</x>
<y>120</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Delete</string>
</property>
</widget>
<widget class="QPushButton" name="hernoem">
<property name="geometry">
<rect>
<x>400</x>
<y>90</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Rename</string>
</property>
</widget>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>827</width>
<height>21</height>
</rect>
</property>
</widget>
<widget class="QStatusBar" name="statusbar"/>
</widget>
<resources/>
<connections/>
</ui>
如果你想使用 QFileSystemModel，你必须使用 QTreeView，但是你的 .ui 没有实现它，所以修改你的 .ui。另一方面，sd.wait() 阻塞会冻结 GUI，以避免必须在另一个线程中执行此任务。
综合以上，解决方案是：
*.ui
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>615</width>
<height>598</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<layout class="QHBoxLayout" name="horizontalLayout">
<item>
<widget class="QTreeView" name="filestruckture"/>
</item>
<item>
<layout class="QGridLayout" name="gridLayout">
<item row="1" column="0" colspan="2">
<widget class="QLineEdit" name="filename"/>
</item>
<item row="3" column="0">
<widget class="QPushButton" name="nieuwemap">
<property name="text">
<string>New folder</string>
</property>
</widget>
</item>
<item row="4" column="0">
<widget class="QPushButton" name="verwijderen">
<property name="text">
<string>Delete</string>
</property>
</widget>
</item>
<item row="2" column="1">
<widget class="QPushButton" name="importeer">
<property name="text">
<string>Inport</string>
</property>
</widget>
</item>
<item row="0" column="0" colspan="2">
<widget class="QLabel" name="label">
<property name="text">
<string>File name for new item:</string>
</property>
</widget>
</item>
<item row="3" column="1">
<widget class="QPushButton" name="hernoem">
<property name="text">
<string>Rename</string>
</property>
</widget>
</item>
<item row="2" column="0">
<widget class="QPushButton" name="opnemen">
<property name="text">
<string>Capture</string>
</property>
</widget>
</item>
<item row="5" column="0">
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
</layout>
</item>
</layout>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>615</width>
<height>30</height>
</rect>
</property>
</widget>
<widget class="QStatusBar" name="statusbar"/>
</widget>
<resources/>
<connections/>
</ui>
*.py
import os
import sys
from pathlib import Path
from functools import partial
import sounddevice as sd
from scipy.io.wavfile import write
from PyQt5 import QtCore, QtGui, QtWidgets, uic
qtcreator_file = "mainwindow.ui" # Enter file here.
Ui_MainWindow, QtBaseClass = uic.loadUiType(qtcreator_file)
class CaptureWorker(QtCore.QObject):
started = QtCore.pyqtSignal()
finished = QtCore.pyqtSignal()
@QtCore.pyqtSlot(str)
def save_to(self, path):
self.started.emit()
fs = 44100 # Sample rate
seconds = 6 # Duration of recording
myrecording = sd.rec(int(seconds * fs), samplerate=fs, channels=2)
sd.wait()
write(path, fs, myrecording)
self.finished.emit()
class MyWindow(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self, parent=None):
super(MyWindow, self).__init__(parent)
self.setupUi(self)
self.root_path = "D:/DemoGIPhoofdmap/bedrijf 08"
model = QtWidgets.QFileSystemModel(self)
self.filestruckture.setModel(model)
model.setRootPath(self.root_path)
self.filestruckture.setRootIndex(model.index(model.rootPath()))
thread = QtCore.QThread(self)
thread.start()
self.capture_worker = CaptureWorker()
self.capture_worker.moveToThread(thread)
self.capture_worker.started.connect(partial(self.opnemen.setEnabled, False))
self.capture_worker.finished.connect(partial(self.opnemen.setEnabled, True))
self.opnemen.clicked.connect(self.capture)
def capture(self):
name = self.filename.text()
if name:
locatie = self.root_path
locatiepath = Path(locatie)
file_name = os.path.join(locatiepath, name + ".wav")
wrapper = partial(self.capture_worker.save_to, file_name)
QtCore.QTimer.singleShot(0, wrapper)
else:
print("set the filename")
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
window = MyWindow()
window.show()
sys.exit(app.exec_())