PyQt - 添加布局到QSplitter

我想使用QSplitter来分割两侧的MainWindow。在左边，我想要一个包含文件夹视图的布局，在右边的另一个布局中我将绘制一些内容。但我只能在QSplitter上添加小工具，而布局不是小工具。我发现的唯一类似的问题是这些：PyQt - 添加布局到QSplitter

http://www.qtcentre.org/threads/16856-QSplitter-multiple-layouts-how https://forum.qt.io/topic/8197/solved-qsplitter-and-qvboxlayout-problem

因此，根据上述链接，我的计划是创建两个布局，然后将它们添加两个QWidgets（使用setLayout的），然后将这些QWidgets添加到QSplitter（使用addWidget）。我试图将其应用于我的代码，但不幸的是，当我将布局添加到小部件时，什么也没有显示出来！

是否有另一种方法来实现我想要的？我误解了答案吗？

这是代码。为了让代码更简单，我仅向您发送文件夹视图布局。另外，我对pyqt和面向对象编程完全陌生，因此欢迎任何有关如何改进它的建议！

在此先感谢！

import sys 
from PyQt5.QtWidgets import * 
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 

class Window(QMainWindow): 

    def __init__(self, parent=None): 

     super(Window, self).__init__(parent) 
     self.UI() 

    def UI(self): 

     self.central_widget = QStackedWidget() 
     self.setCentralWidget(self.central_widget) 

     self.statusBar().showMessage("Ready") 

     page1 = FirstWidget(self) 
     page1.visualize_btn.clicked.connect(self.P_2) 
     self.central_widget.addWidget(page1)   

     self.setGeometry(10, 10, 800, 500) #All three methods have been inherited from the QWidget class. 
     self.showMaximized() 
     self.setWindowTitle('PTV') 
     self.setWindowIcon(QIcon('tuc_logo.png')) 

    def P_2(self): 

     page2 = VisualizeWidget(self) 
     self.central_widget.addWidget(page2) 
     self.central_widget.setCurrentWidget(page2) 


class FirstWidget(QWidget): 

    def __init__(self, parent=None): 
     super(FirstWidget, self).__init__(parent) 
     self.buttons() 

    def buttons(self): 

     self.btn2 = QPushButton("Visualize") 
     self.buttonsLayout = QVBoxLayout() 
     self.buttonsLayout.addWidget(self.btn2) 
     self.visualize_btn = self.btn2   
     self.setLayout(self.buttonsLayout) 


class VisualizeWidget(QWidget): 

    def __init__(self, parent=None): 
     super(VisualizeWidget, self).__init__(parent) 


     self.dirmodel = QFileSystemModel()   
     self.dirmodel.setFilter(QDir.NoDotAndDotDot | QDir.AllDirs) # Don't show files, just folders 

     self.folder_view = QTreeView(parent=self); 
     self.folder_view.setModel(self.dirmodel) 
     self.folder_view.clicked[QModelIndex].connect(self.clicked) 

     self.now_layout = QVBoxLayout() 
     self.now_layout.addWidget(self.folder_view) 

     #self.setLayout(self.now_layout) 

     #HERE is where I'm trying to add the layout to the widget. 
     self.left_widget = QWidget() 
     self.left_widget.setLayout(self.now_layout)    


    def set_path(self): 
     self.dirmodel.setRootPath("") 

    def clicked(self, index): 
     index = self.selectionModel.currentIndex() 
     dir_path = self.dirmodel.filePath(index) 

     self.filemodel.setRootPath(dir_path) 
     self.file_view.setRootIndex(self.filemodel.index(dir_path))   

def main(): 
    app = QApplication(sys.argv) 
    win = Window() 
    win.show() 
    app.exec_() 

if __name__ == '__main__': 
    sys.exit(main())

来源

2017-03-17 A. Dav

我没有真正明白尚未我在做什么错的，但我张贴工作代码，在情况下，它可以帮助别人，将来别人。

现在，这两种布局被拆分为QSplitter。

import sys 
from PyQt5.QtWidgets import * 
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 

class Window(QMainWindow): 

    def __init__(self, parent=None): 

     super(Window, self).__init__(parent) 
     self.UI() 

    def UI(self): 

     self.central_widget = QStackedWidget() 
     self.setCentralWidget(self.central_widget) 

     self.statusBar().showMessage("Ready") 

     page1 = FirstWidget(self) 
     page1.visualize_btn.clicked.connect(self.P_2) 
     self.central_widget.addWidget(page1)   

     self.setGeometry(10, 10, 800, 500) #All three methods have been inherited from the QWidget class. 
     self.showMaximized() 
     self.setWindowTitle('PTV') 
     self.setWindowIcon(QIcon('tuc_logo.png')) 

    def P_2(self): 

     page2 = VisualizeWidget(self) 
     self.central_widget.addWidget(page2) 
     self.central_widget.setCurrentWidget(page2) 


class FirstWidget(QWidget): 

    def __init__(self, parent=None): 
     super(FirstWidget, self).__init__(parent) 
     self.buttons() 

    def buttons(self): 

     self.btn2 = QPushButton("Visualize") 
     self.buttonsLayout = QVBoxLayout() 
     self.buttonsLayout.addWidget(self.btn2) 
     self.visualize_btn = self.btn2   
     self.setLayout(self.buttonsLayout) 


class VisualizeWidget(QWidget): 

    def __init__(self, parent=None): 
     super(VisualizeWidget, self).__init__(parent) 


     #Creation of the left layout 
     self.dirmodel = QFileSystemModel()   
     self.dirmodel.setFilter(QDir.NoDotAndDotDot | QDir.AllDirs) # Don't show files, just folders 

     self.folder_view = QTreeView(parent=self); 
     self.folder_view.setModel(self.dirmodel) 
     self.folder_view.clicked[QModelIndex].connect(self.clicked) 

     self.selectionModel = self.folder_view.selectionModel() 

     self.now_layout = QVBoxLayout() 
     self.now_layout.addWidget(self.folder_view) 


     self.left_widget = QWidget() 
     self.left_widget.setLayout(self.now_layout) 


     #Creation of the right layout 
     #self.right_widget = QTextEdit(); 

     self.btn1 = QPushButton('btn1') 

     self.right_layout = QVBoxLayout() 
     self.right_layout.addWidget(self.btn1) 

     self.right_widget = QWidget() 
     self.right_widget.setLayout(self.right_layout) 




     splitter_filebrowser = QSplitter(Qt.Horizontal) 
     splitter_filebrowser.addWidget(self.left_widget) 
     splitter_filebrowser.addWidget(self.right_widget) 
     splitter_filebrowser.setStretchFactor(1, 1) 

     hbox = QHBoxLayout(self) 
     hbox.addWidget(splitter_filebrowser) 

     self.setLayout(hbox) 



    def set_path(self): 
     self.dirmodel.setRootPath("") 

    def clicked(self, index): 
     index = self.selectionModel.currentIndex() 
     dir_path = self.dirmodel.filePath(index) 

     self.filemodel.setRootPath(dir_path) 
     self.file_view.setRootIndex(self.filemodel.index(dir_path))   

def main(): 
    app = QApplication(sys.argv) 
    win = Window() 
    win.show() 
    app.exec_() 

if __name__ == '__main__': 
    sys.exit(main())

来源

2017-03-20 13:00:22

PyQt - 添加布局到QSplitter

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