I’m using PyQt5 on a Windows platform. I want to present a QFileDialog to the user with the suggested file highlighted in both the QListView and the QLineEdit widgets within the QFileDialog window. The selectFile() method adds the filename to the QLineEdit widget and highlightss it, but does not highlight the file in the QListView widget.
I tried the suggestion in How to setFocus() on QListView in QFileDialog in PyQt5?, but I could not see that the QListView had focus and could not highlight a file with selectFile().
In QFileDialog, is there a way to highlight the filename in the QistView and in the QLineEdit widgets? If not, is there a way to highlight the filename in just the QListView?
Here is a minimalized script that shows the filename highlighted in the QLineEdit widget.
import sys
from PyQt5.QtWidgets import QApplication, QFileDialog
from PyQt5.QtCore import QDir
class MyClass(QFileDialog):
def __init__(self):
super().__init__()
self.DontUseNativeDialog
self.openFile()
def openFile(self):
qdir = QDir()
qdir.setPath('C:\\Users\\Slalo\\Documents\\VideoGates\\PVRTop\\Folder')
qdir.setSorting(QDir.Name | QDir.Reversed)
qdirlist = qdir.entryList()
self.setWindowTitle('Open File')
self.setDirectory(qdir)
self.setNameFilter('All(*.*)')
self.selectFile(qdirlist[1])
if self.exec():
fname = self.selectedFiles()
print(fname)
if __name__ == '__main__':
app = QApplication(sys.argv)
dlg = MyClass()
sys.exit(app.exec())
After testing #musicamante 's patience, here is the solution. The QFileDialog window looks a little different than the native Windows dialog, but that's OK - it works as intended. Here is the corrected script.
import sys, os
from PyQt5.QtWidgets import QApplication, QFileDialog
class MyClass(QFileDialog):
def __init__(self):
super().__init__()
self.setOption(QFileDialog.DontUseNativeDialog)
self.openFile()
def openFile(self):
dirname = 'C:\\Users\\Slalo\\Documents\\VideoGates\\PVRTop\\Folder'
fileList = os.listdir(dirname)
self.setWindowTitle('Open File')
self.setDirectory(dirname)
self.setNameFilter('All(*.*)')
self.selectFile(fileList[1])
if self.exec():
fname = self.selectedFiles()
print(fname)
if __name__ == '__main__':
app = QApplication(sys.argv)
dlg = MyClass()
sys.exit(app.exec())
Related
I'm trying to open a file in my PySide2 application, but the file dialog always opens below the main window and appears as another application in the launcher. The application's name is "Portal".
I see other answers where the solution is to pass the main window as the first parameter to getOpenFileName(), but that doesn't work for me.
Here's a simple demonstration of the problem:
import sys
from PySide2.QtWidgets import QPushButton, QFileDialog, QApplication
class DemoButton(QPushButton):
def __init__(self, text):
super().__init__(text)
self.clicked.connect(self.on_click)
def on_click(self):
file_name, _ = QFileDialog.getOpenFileName(
self,
"Open a text file.",
filter='Text file (*.txt)')
print(file_name)
def main():
app = QApplication(sys.argv)
button = DemoButton("Hello World")
button.show()
app.exec_()
sys.exit()
main()
I thought maybe the parent had to be a QMainWindow, so I tried that:
import sys
from PySide2 import QtWidgets
class MainWindow(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
main_widget = QtWidgets.QWidget(self)
self.setCentralWidget(main_widget)
# layout initialize
g_layout = QtWidgets.QVBoxLayout()
layout = QtWidgets.QFormLayout()
main_widget.setLayout(g_layout)
# Add Widgets
self.exec_btn = QtWidgets.QPushButton('Execute')
self.exec_btn.clicked.connect(self.find_file)
# global layout setting
g_layout.addLayout(layout)
g_layout.addWidget(self.exec_btn)
def find_file(self):
file_name, _ = QtWidgets.QFileDialog.getOpenFileName(
self,
"Open a text file.",
filter='Text file (*.txt)')
print(file_name)
def main():
app = QtWidgets.QApplication(sys.argv)
window = MainWindow()
window.show()
app.exec_()
sys.exit()
main()
The file dialog behaved exactly the same.
I'm using PySide2 5.12.2, Python 3.6.7, and running on Ubuntu 18.04.
Thanks to ekhumoro's comment, I learned that I can tell PySide2 not to use the native file dialog.
import sys
from PySide2.QtWidgets import QPushButton, QFileDialog, QApplication
class DemoButton(QPushButton):
def __init__(self, text):
super().__init__(text)
self.clicked.connect(self.on_click)
def on_click(self):
file_name, _ = QFileDialog.getOpenFileName(
self,
"Open a text file.",
filter='Text file (*.txt)',
options=QFileDialog.DontUseNativeDialog)
print(file_name)
def main():
app = QApplication(sys.argv)
button = DemoButton("Hello World")
button.show()
app.exec_()
sys.exit()
main()
That fixes the behaviour by bringing the file dialog to the front, but I think the native file dialog looks better. Hopefully, there's another option that can make the native file dialog work properly.
I am trying to change the title of the window applications but I don't see how to do it for my specific case where I am loading the *.ui file as a form.
A simplified version of my code so far looks like so:
import sys, os
from sys import stdout, stdin, stderr
from PySide2.QtUiTools import QUiLoader
from PySide2.QtWidgets import QApplication, QPushButton, QLineEdit, QTextBrowser
from PySide2.QtCore import QFile, QObject, QEvent
class Form(QObject):
def __init__(self, ui_file, parent=None):
super(Form, self).__init__(parent)
ui_file = QFile(ui_file)
ui_file.open(QFile.ReadOnly)
loader = QUiLoader()
self.window = loader.load(ui_file)
ui_file.close()
self.window.show()
if __name__ == '__main__':
print("Starting up tool application...\nPlease wait.")
app = QApplication(sys.argv)
form = Form('mifareclassictool.ui')
sys.exit(app.exec_())
I tried self.setWindowTitle("title") within the Form class but that property does not exist. I am still new to Qt Designer and creating applications in python.
The form is not the window so you can not use self.setWindowTitle("title"), instead you should use self.window:
self.window.setWindowTitle("title")
i have python class called PDFviewer that upon run the program the system display a window that handle button (open folder) witch will open a file Dialog that allow the user to choose a directory and display files inside it.
the problem is that when i try to click the button the system crash and display this error :
File
"C:\Users\test\Documents\Python_Projects\final_project\myPDFviewer.py",
line 36, in sys.exit(app.exec_()) File
"C:\Users\test\Documents\Python_Projects\final_project\myPDFviewer.py",
line 24, in setExistingDirectory options=options)
builtins.TypeError: getExistingDirectory(parent: QWidget = None,
caption: str = '', directory: str = '', options:
Union[QFileDialog.Options, QFileDialog.Option] =
QFileDialog.ShowDirsOnly): argument 1 has unexpected type 'bool'
code:
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import (QApplication, QCheckBox, QColorDialog, QDialog,
QErrorMessage, QFileDialog, QFontDialog, QFrame, QGridLayout,
QInputDialog, QLabel, QLineEdit, QMessageBox, QPushButton)
from PyQt5.QtCore import QDir, Qt
import pdfviewer
class pdfViewer(pdfviewer.Ui_PdfPreviewWindow):
def __init__(self,PdfPreviewObj ):
self.PdfPreviewObj =PdfPreviewObj
self.setupUi(PdfPreviewObj)
self.PdfPreviewObj.show()
self.pushButtonOpenFolder.clicked.connect(self.setExistingDirectory)
def setExistingDirectory(self,qf):
options = QFileDialog.DontResolveSymlinks | QFileDialog.ShowDirsOnly
directory = QFileDialog.getExistingDirectory(self,
"Open Folder",
options=options)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
PdfPreviewWindow = QtWidgets.QMainWindow()
pdfViewerUi = pdfViewer(PdfPreviewWindow)
sys.exit(app.exec_())
i found the solution it did not work before because i wasn't refer the object dialog to self so the solution become :
def setExistingDirectory(self):
self.dialog = Dialog()
options = QFileDialog.DontResolveSymlinks | QFileDialog.ShowDirsOnly
self.directory = QFileDialog.getExistingDirectory(self.dialog, "Open Folder" ,options=options)
self.dialog.show()
Selecting files:
filepath = QtWidgets.QFileDialog.getOpenFileName(self, 'Select File')
Here, self represents the parent window usually the mainWindow.
Similarly, for selecting folder:
folderpath = QtWidgets.QFileDialog.getExistingDirectory(self, 'Select Folder')
I want to add startup window that when I click button, it will open another window and close current window. For each window, it has seperated UI which created from Qt Designer in .ui form.
I load both .ui file via uic.loadUiType(). The first window(first UI) can normally show its UI but when I click button to go to another window, another UI (second UI) doesn't work. It likes open blank window.
Another problem is if I load first UI and then change to second UI (delete that Class and change to another Class, also delete uic.loadUiType()), the second UI still doesn't work (show blank window)
Please help... I research before create this question but can't find the answer.
Here's my code. How can I fix it?
import sys
from PyQt5.QtWidgets import QApplication, QWidget
from PyQt5.QtGui import QIcon
from PyQt5 import uic
#load both ui file
uifile_1 = 'UI/openPage.ui'
form_1, base_1 = uic.loadUiType(uifile_1)
uifile_2 = 'UI/mainPage.ui'
form_2, base_2 = uic.loadUiType(uifile_2)
class Example(base_1, form_1):
def __init__(self):
super(base_1,self).__init__()
self.setupUi(self)
self.startButton.clicked.connect(self.change)
def change(self):
self.main = MainPage()
self.main.show()
class MainPage(base_2, form_2):
def __int__(self):
super(base_2, self).__init__()
self.setupUi(self)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
ex.show()
sys.exit(app.exec_())
First you have an error, you must change __int__ to __init__. To close the window call the close() method.
import sys
from PyQt5.QtWidgets import QApplication, QWidget
from PyQt5.QtGui import QIcon
from PyQt5 import uic
#load both ui file
uifile_1 = 'UI/openPage.ui'
form_1, base_1 = uic.loadUiType(uifile_1)
uifile_2 = 'UI/mainPage.ui'
form_2, base_2 = uic.loadUiType(uifile_2)
class Example(base_1, form_1):
def __init__(self):
super(base_1,self).__init__()
self.setupUi(self)
self.startButton.clicked.connect(self.change)
def change(self):
self.main = MainPage()
self.main.show()
self.close()
class MainPage(base_2, form_2):
def __init__(self):
super(base_2, self).__init__()
self.setupUi(self)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
ex.show()
sys.exit(app.exec_())
How to add image/icon with text in a qlistwidget in pyqt4 python? I want to add an icon with text just like a chat system. thanks
I have tried this right now and it works, supposing you have a file named tick.png in the same folder as this script.
import sys
from PyQt4 import QtGui, QtCore
from PyQt4.QtGui import QApplication, QDialog, QListWidgetItem, QListWidget, QIcon
def main():
app = QtGui.QApplication(sys.argv)
window = QDialog()
list = QListWidget( window )
itm = QListWidgetItem( "Tick" );
itm.setIcon(QIcon(r"tick.png"));
list.addItem(itm);
window.show( )
sys.exit(app.exec_())
if __name__ == '__main__':
main()
The chat-like-icon system may be different from this, but right now I don't see a way to have a QListWidgetItem with multiple smileys and text.
You may think of smileys as a particular case of a QListWidgetItem where the text is blank and only the icon is present.
Another solution is using a read-only QTextEdit as chatboard and have the user typing its text + icon + text (etc.) in a separate editable QTextEdit. Then, when he presses the send button, append everything he typed to the read-only QTextEdit.
import sys
from PyQt4 import QtGui, QtCore
from PyQt4.QtGui import QApplication, QDialog, QListWidgetItem, QListWidget, QIcon, QTextEdit, QTextDocumentFragment
def main():
app = QtGui.QApplication(sys.argv)
window = QDialog()
list = QListWidget( window )
textEditor = QTextEdit( window );
textEditor.setReadOnly( True )
tick_icon = QTextDocumentFragment.fromHtml(r"<img src='tick.png'>");
textEditor.insertPlainText ( " ValiumKnight writes: " )
textEditor.textCursor().insertFragment(tick_icon);
textEditor.insertPlainText ( " Hello World " )
textEditor.textCursor().insertFragment(tick_icon);
textEditor.textCursor().insertFragment(tick_icon);
textEditor.textCursor().insertFragment(tick_icon);
window.show( )
sys.exit(app.exec_())
if __name__ == '__main__':
main()
Bye!