QTreeView 不显示文件图标 (PySide6)

Question

我最近在 PyQt5 中构建了一个应用程序，我正在使用 QTreeView 来显示文件夹中的所有项目。今天切换到 PySide6，出于某种原因，TreeView 没有显示 files/folders 的图标。我将抛出一些图像作为示例。

两个版本之间有什么变化吗？我试着在网上找东西，但什么也没有弹出。这是我正在使用的代码（不知道有没有帮助）

from PySide6 import QtWidgets as qtw
from PySide6 import QtCore as qtc
from PySide6 import QtGui as qtg
import sys
import logic


class MainWindow(qtw.QWidget):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        # Init UI
        self.width = 540
        self.height = 380
        self.setGeometry(
            qtw.QStyle.alignedRect(
                qtc.Qt.LeftToRight,
                qtc.Qt.AlignCenter,
                self.size(),
                qtg.QGuiApplication.primaryScreen().availableGeometry(),
            ),
        )
        self.tree = qtw.QTreeView()
        self.model = qtw.QFileSystemModel()

        # Items
        self.path_input = qtw.QLineEdit()
        path_label = qtw.QLabel("Enter a path to begin: ")
        check_btn = qtw.QPushButton("Check")  # To display the items
        clear_btn = qtw.QPushButton("Clear")  # To clear the TreeView
        self.start_btn = qtw.QPushButton("Start")  # To start the process
        self.start_btn.setEnabled(False)

        # Layouts
        top_h_layout = qtw.QHBoxLayout()
        top_h_layout.addWidget(path_label)
        top_h_layout.addWidget(self.path_input)
        top_h_layout.addWidget(check_btn)
        bot_h_layout = qtw.QHBoxLayout()
        bot_h_layout.addWidget(clear_btn)
        bot_h_layout.addWidget(self.start_btn)
        main_v_layout = qtw.QVBoxLayout()
        main_v_layout.addLayout(top_h_layout)
        main_v_layout.addWidget(self.tree)
        main_v_layout.addLayout(bot_h_layout)
        self.setLayout(main_v_layout)

        check_btn.clicked.connect(self.init_model)
        clear_btn.clicked.connect(self.clear_model)
        self.start_btn.clicked.connect(self.start)

        self.show()

    def init_model(self):
        if logic.check(self.path_input.text()):
            self.model.setRootPath(self.path_input.text())
            self.tree.setModel(self.model)
            self.tree.setRootIndex(self.model.index(self.path_input.text()))
            self.tree.setColumnWidth(0, 205)
            self.tree.setAlternatingRowColors(True)
            self.path_input.clear()
            self.start_btn.setEnabled(True)
        else:
            qtw.QMessageBox.warning(self, "Error", "Path not found.")
            self.path_input.clear()

    def clear_model(self):
        self.tree.setModel(None)
        self.path_input.clear()

    def start(self):
        logic.start(self.path_input.text())
        qtw.QMessageBox.information(self, "Done", "Process completed")


if __name__ == "__main__":
    app = qtw.QApplication(sys.argv)
    w = MainWindow()
    sys.exit(app.exec_())

这是 logic.py 文件：

import os
import shutil


def check(path):
    if os.path.isdir(path):
        return True
    else:
        return False


def start(path):
    os.chdir(path)
    for root, dirs, files in os.walk(path):
        for filename in files:
            movie_name = filename
            strip_name = filename[:-4]
            print(f"Creating directory for {movie_name}")
            os.mkdir(strip_name)
            print("Moving item to new directory.")
            shutil.move(f"{path}\{movie_name}", f"{path}\{strip_name}\{movie_name}")
            print("\n")
    print("Done.")


# For testing
if __name__ == "__main__":
    usr_input = input("Path: ")

Answer 1

似乎是一个错误：图标无效（可能缺少插件，或者未正确安装或没有所有依赖项）。

解决方法是实现自定义 QFileIconProvider：

class FileIconProvider(qtw.QFileIconProvider):
    def icon(self, _input):
        if isinstance(_input, qtc.QFileInfo):
            if _input.isDir():
                return qtw.QApplication.style().standardIcon(qtw.QStyle.SP_DirIcon)
            elif _input.isFile():
                return qtw.QApplication.style().standardIcon(qtw.QStyle.SP_FileIcon)
        else:
            if _input == qtg.QAbstractFileIconProvider.Folder:
                return qtw.QApplication.style().standardIcon(qtw.QStyle.SP_DirIcon)
            elif _input == qtg.QAbstractFileIconProvider.File:
                return qtw.QApplication.style().standardIcon(qtw.QStyle.SP_FileIcon)
        return super().icon(_input)

self.model.setIconProvider(FileIconProvider())

QTreeView 不显示文件图标 (PySide6)

QTreeView not displaying file icons (PySide6)

python

qtreeview

pyside6