PyQt – Load data from .txt file via Drag and Drop

Hello everyone!

I have a folder TreeView on the left layout and I want to drag a .txt file from there and drop it to the other layout. Hopefully, I want to load the data of that dropped file on a variable.
For the code’s needs, I used till now (to my “real” code) the np.loadtxt() to load the data, so I’d like to use it here too.
In case it matters, the .txt file contains 4 columns (coordinates).

I post my code. The program closes when I drop the file.

Thanks in advance!

Code:

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import sys, time, os
 
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
 
import numpy as np
import pylab as pl
 
import random
 
class Example(QMainWindow):
 
    def __init__(self):
        super().__init__()
 
        self.initUI()
 
 
    def initUI(self):
 
        self.central_widget = QWidget()
        self.setCentralWidget(self.central_widget)
 
 
        self.folderLayout = QWidget();
 
        self.pathRoot = QDir.rootPath()
 
        self.dirmodel = QFileSystemModel(self)
        self.dirmodel.setRootPath(QDir.currentPath())
 
        self.indexRoot = self.dirmodel.index(self.dirmodel.rootPath())
 
        self.folder_view = QTreeView();
        self.folder_view.setDragEnabled(True)
        self.folder_view.setModel(self.dirmodel)
        self.folder_view.setRootIndex(self.indexRoot)
 
        self.selectionModel = self.folder_view.selectionModel()
 
        self.left_layout = QVBoxLayout()
        self.left_layout.addWidget(self.folder_view)
 
        self.folderLayout.setLayout(self.left_layout)        
 
        splitter_filebrowser = QSplitter(Qt.Horizontal)
        splitter_filebrowser.addWidget(self.folderLayout)
        splitter_filebrowser.addWidget(Figure_Canvas(self))
        splitter_filebrowser.setStretchFactor(1, 1)
 
        hbox = QHBoxLayout(self)
        hbox.addWidget(splitter_filebrowser)
 
        self.centralWidget().setLayout(hbox)
 
 
        self.setWindowTitle('Simple drag & drop')
        self.setGeometry(750, 100, 600, 500)
 
 
 
class Figure_Canvas(QWidget):
 
    def __init__(self, parent):
        super().__init__(parent)
 
        self.setAcceptDrops(True)
 
        blabla = QLineEdit()
 
        self.right_layout = QVBoxLayout()
        self.right_layout.addWidget(blabla)
 
 
        self.buttonLayout = QWidget()
        self.buttonLayout.setLayout(self.right_layout)
 
    def dragEnterEvent(self, e):
 
        if e.mimeData().hasFormat('text/uri-list'):
            e.accept()
        else:
            e.ignore() 
 
    def dropEvent(self, e):
 
        print("something")
        data = np.loadtxt(e.mimeData())
        print(data)
 
 
if __name__ == '__main__':
 
    app = QApplication(sys.argv)
    ex = Example()
    ex.show()
    app.exec_()

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Can "np.loadtxt" handle a QMimeData object as its argument?

Cheers,
_

Hi anda_skoa, thanks for your quick reply!
Truth is I have no idea, but I’m checking it out now in case I find something and I’ll post.
Have you any clue if it could be done in another way? For example to get the file name (e.g. this_file.txt) and then use something like:

Code:

---

with open("test_5.txt") as f:
            data2 = np.loadtxt("this_file.txt ")

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Thanks again!