Daree1980
28th November 2017, 23:04
Hello,
I used Michal Fapsos implementation of this dialog (http://www.qtcentre.org/threads/33593-How-can-i-have-a-QFileDialog-with-a-preview-of-the-picture?p=247022#post247022) and it worked with Qt 5.6.1 .
Now I am using Qt 5.9.2 and it does not work anymore, giving the following error:
Traceback (most recent call last):
File "main.py", line 74, in mouseDoubleClickEvent
self.openFileDialog()
File "main.py", line 123, in openFileDialog
openDialog = QFileDialogPreview(self, 'Open file', './', self.getDialogFilter())
File "QFileDialogPreview.py", line 22, in __init__
self.layout().addLayout(box, 1, 3, 1, 1)
TypeError: addLayout(self, QLayout, stretch: int = 0): too many arguments
Here is the translated class. I am using Python 3.5.2:
from PyQt5.QtWidgets import QFileDialog, QLabel, QVBoxLayout
from PyQt5.QtGui import QPixmap
from PyQt5.QtCore import Qt
class QFileDialogPreview(QFileDialog):
def __init__(self, parent, caption, direcotry, filter):
super().__init__(parent, caption, direcotry, filter)
self.setObjectName("FileDialogPreview")
box = QVBoxLayout(self)
self.setFixedSize(self.width() + 250, self.height())
self.mpPreview = QLabel("Preview", self)
self.mpPreview.setFixedSize(250, 250)
self.mpPreview.setAlignment(Qt.AlignCenter)
self.mpPreview.setObjectName("labelPreview")
box.addWidget(self.mpPreview)
box.addStretch()
self.layout().addLayout(box, 1, 3, 1, 1)
self.currentChanged.connect(self.onChange)
self.fileSelected.connect(self.onFileSelected)
self.filesSelected.connect(self.onFilesSelected)
self._fileSelected = None
self._filesSelected = None
def onChange(self, path):
pixmap = QPixmap(path)
if(pixmap.isNull()):
self.mpPreview.setText("Preview")
else:
self.mpPreview.setPixmap(pixmap.scaled(self.mpPrev iew.width(), self.mpPreview.height(), Qt.KeepAspectRatio, Qt.SmoothTransformation))
def onFileSelected(self, file):
self._fileSelected = file
def onFilesSelected(self, files):
self._filesSelected = files
def getFileSelected(self):
return self._fileSelected
def getFilesSelected(self):
return self._filesSelected
Has there been a change in the layout of QFileDialog, which should be a QGridLayout, but now is a QVBoxLayout, or is the problem somewhere else?
I am confident in the code working before, since it ran on my linux machine (Qt 5.6.1), but running it on my windows using (Qt 5.9.3) failed with the above error as well.
I used Michal Fapsos implementation of this dialog (http://www.qtcentre.org/threads/33593-How-can-i-have-a-QFileDialog-with-a-preview-of-the-picture?p=247022#post247022) and it worked with Qt 5.6.1 .
Now I am using Qt 5.9.2 and it does not work anymore, giving the following error:
Traceback (most recent call last):
File "main.py", line 74, in mouseDoubleClickEvent
self.openFileDialog()
File "main.py", line 123, in openFileDialog
openDialog = QFileDialogPreview(self, 'Open file', './', self.getDialogFilter())
File "QFileDialogPreview.py", line 22, in __init__
self.layout().addLayout(box, 1, 3, 1, 1)
TypeError: addLayout(self, QLayout, stretch: int = 0): too many arguments
Here is the translated class. I am using Python 3.5.2:
from PyQt5.QtWidgets import QFileDialog, QLabel, QVBoxLayout
from PyQt5.QtGui import QPixmap
from PyQt5.QtCore import Qt
class QFileDialogPreview(QFileDialog):
def __init__(self, parent, caption, direcotry, filter):
super().__init__(parent, caption, direcotry, filter)
self.setObjectName("FileDialogPreview")
box = QVBoxLayout(self)
self.setFixedSize(self.width() + 250, self.height())
self.mpPreview = QLabel("Preview", self)
self.mpPreview.setFixedSize(250, 250)
self.mpPreview.setAlignment(Qt.AlignCenter)
self.mpPreview.setObjectName("labelPreview")
box.addWidget(self.mpPreview)
box.addStretch()
self.layout().addLayout(box, 1, 3, 1, 1)
self.currentChanged.connect(self.onChange)
self.fileSelected.connect(self.onFileSelected)
self.filesSelected.connect(self.onFilesSelected)
self._fileSelected = None
self._filesSelected = None
def onChange(self, path):
pixmap = QPixmap(path)
if(pixmap.isNull()):
self.mpPreview.setText("Preview")
else:
self.mpPreview.setPixmap(pixmap.scaled(self.mpPrev iew.width(), self.mpPreview.height(), Qt.KeepAspectRatio, Qt.SmoothTransformation))
def onFileSelected(self, file):
self._fileSelected = file
def onFilesSelected(self, files):
self._filesSelected = files
def getFileSelected(self):
return self._fileSelected
def getFilesSelected(self):
return self._filesSelected
Has there been a change in the layout of QFileDialog, which should be a QGridLayout, but now is a QVBoxLayout, or is the problem somewhere else?
I am confident in the code working before, since it ran on my linux machine (Qt 5.6.1), but running it on my windows using (Qt 5.9.3) failed with the above error as well.