@MATTK said in Configuring checkbox when using QTreeWidget:

is this a bug or a known issue from Qt Designer?

No, it's 100% intended behaviour. the condition is checked here

You have 2 options:

set the Qt::CheckStateRole for the indexes you want to have a checkbox. In your widget constructor you'd call something like setUnchecked(ui->treeWidget->model()); void setUnchecked(QAbstractItemModel* model, const QModelIndex& parent = QModelIndex()){ if(!model) return; for(int i=0, maxRow=model->rowCount(parent);i<maxRow;++i){ for(int j=0, maxCol=model->columnCount(parent);j<maxCol;++j){ const QModelIndex currIdx = model->index(i,j,parent); model->setData(currIdx,Qt::Unchecked,Qt::CheckStateRole); if(model->hasChildren(currIdx)) setUnchecked(model,currIdx); } } } subclass the delegate to check the flag instead of Qt::CheckStateRole and call something like ui->treeWidget->setItemDelegate(new CheckFlagDelegate(this)); in your widget constructor class CheckFlagDelegate : public QStyledItemDelegate{ Q_OBJECT Q_DISABLE_COPY(CheckFlagDelegate) public: explicit CheckFlagDelegate(QObject* parent = Q_NULLPTR) : QStyledItemDelegate(parent){} protected: void initStyleOption(QStyleOptionViewItem *option, const QModelIndex &index) const Q_DECL_OVERRIDE{ QStyledItemDelegate::initStyleOption(option,index); if(index.model()->flags(index) & Qt::ItemIsUserCheckable) option->features |= QStyleOptionViewItem::HasCheckIndicator; } };

Since the functionality is defined in a QObject (the delegate) and not in a QWidget this is not something designer can and probably ever will manage

@mrjj okay thank you very much! And yes, my Designer also have a StyleSheet editor like this:

Cheers

Hi there.

I think you can use TableViewColumn element to create a new column inside a TableView component.
If necessary, you can define your own delegate to set how the data is showed to user.

Read more:
http://doc.qt.io/qt-5/qml-qtquick-controls-tableview.html#details <- TableView Documentation
http://doc.qt.io/qt-5/qtquickcontrols-tableview-main-qml.html <- TableView Example

Hi,

You are replacing the central widget in OpenVTK. You should rather add your widget to the current central widget's layout.

def clearvbox(self, L = False): if not L: L = self.vbox if L is not None: while L.count(): item = L.takeAt(0) widget = item.widget() if widget is not None: widget.deleteLater() else: self.clearvbox(item.layout())

Hi,

What résolution are you expecting ?

Well... Then you can translate the example from the class detailed documentation in Python and you have a minimal video player.

@Dl10

Hi
I think it exists

https://www.youtube.com/watch?v=Dmo8eZG5I2w

There you just place 4 qframes on center mainwindow
Then right click (not on frames) and from layout menu
select Grid layout

@Dl10
You may split the function and start a timer.. something like..
from :

testFunction(){ step1.. step2.. time.sleep().. step3.. }

to

testFunction(){ step1.. step2.. qtimer t; connect(&t,SIGNAL(timeOut()),this,SLOT(testFunction2())); t.start(2000); } testFunction2(){ step3... }

PS: Syntax may vary.. this is a c++ code.. please convert it to pyqt5.. Hope this is what you are expecting...
and thats what i understood from your post...

[This post cross-posed to https://forum.qt.io/topic/85493/unicodedecodeerror-with-output-from-windows-os-command/18 ]

For the record, I have done exhaustive investigation, and there is only one solution which "correctly" displays the £ character under Windows. I am exhausted so will keep this brief:

To create a file name with a £ in it: Go into, say, Notepad and use its Save to name a file like abc£.txt. This is in the UK, using a UK keyboard and a standard UK-configured Windows.

Note that at this point if you view the filename in either Explorer or, say, via dir you do see a £, not some other character. That's what my user will want to see in the output of the command he will run.

Run an OS command like robocopy or even dir, which will include the filename in its output.

Read the output with QProcess.readAllStandardOutput(). I'm saying the £ character will arrive as a single byte of value 0x9c.

For the required Python/PyQt decoding bytes->str (QByteArray->QString) line, the only thing which works (does not raise an exception) AND represents the character as a £ is: ba.bytes().decode("cp850").

That is the "Code Page 850", used in UK/Western Europe (so I'm told). It is the result output of you open a Command Prompt and execute just chcp.

Any other decoding either raises UnicodeDecodeError (e.g. if utf-8) or decodes but represents it with another character (e.g. if windows_1252 or cp1252).

I still haven't found a way of getting that cp850 encoding name programatically from anywhere --- if you ask Python for, say, the "system encoding" or "user's preferred encoding" you get the cp1252 --- so I've had to hard-code it. [EDIT: If you want it, it's ctypes.cdll.kernel32.GetConsoleOutputCP().]

So there you are. I don't have C++ as opposed to Python for Qt, but I have a suspicion that if anyone tries it using the straight C++ Qt way of text = QString(process.readAllStandardOutput()) they'll find they do not actually get to see the £ symbol....

@SGaist I need the slot send_console_log to be called when the signal written in ConsoleStream is emitted. When running the program with a normal while/for loop in the interpreter, the slot will be called becuase at that moment its non blocking. But the moment I add time.sleep into a loop, slots will only be called at the end when all the blocking is over. Thank you for looking into this.

A quick google search returns this article which covers most aspects of this subject.

@Pierone Can you put you code in GitHub instead of a rar file? Its pretty awkward to unpack your code.

Thanks @jsulm!! That sorted it!

Hi,
try this in line 71

self.getButtonByKey(key).sigKeyButtonClicked.connect(lambda: self.addInputByKey(key))

Thank you! I didnt noticed that. I did correct this mistakes, but still getting the same error:( and empty window :/

Hi,

That's a question you should rather bring to the PyQt forum/mailing list.

@Masonsu your QTextEdit is an implementation detail of your Chatlog widget. You should use e.g. a slot in Chatlog that will internally append the text to your QTextEdit. So if you change it for something else. You don't have to rewrite everything because of that.

I did the test and appearantly it's the painting which is very expensive... with no slot connected, the program takes 1,5 seconds to complete the task. There is a very similar issue reported at https://bugreports.qt.io/browse/QTBUG-49655.

But generally ProgressBars are consuming especially when we update it that often (>365000 times) while there is no significant change at each iteration. So I simply update the QProgressBar less often and the results are good (~1s) and the progression still smooth. PSB :

class ParseFileAsync(QtCore.QThread): match = QtCore.pyqtSignal(str) PBupdate = QtCore.pyqtSignal(int) PBMax = QtCore.pyqtSignal(int) def run(self): with open("test_long.log", "r") as fichier: fileLines = fichier.readlines() self.lineNumber = len(fileLines) self.PBMax.emit(self.lineNumber) if (self.lineNumber < 30): self.parseFile(fileLines, False) else: self.parseFile(fileLines, True) def parseFile(self, fileLines, isBig): cpt = 0 if(isBig): for line in fileLines: cpt+=1 if(cpt % (int(self.lineNumber/30)) == 0): self.PBupdate.emit(cpt) for element in liste: if element in line: self.match.emit(line) self.PBupdate.emit(self.lineNumber) #To avoid QProgressBar stopping at 99% else: for line in fileLines: cpt+=1 self.PBupdate.emit(cpt) for element in liste: if element in line: self.match.emit(line)

super :)
also using "#MainWindow" makes sure it dont apply to childs as stylesheets does.

Hi and welcome
not directly an answer, but have you looked at the example ?
http://doc.qt.io/qt-5/qtwidgets-dialogs-findfiles-example.html

there is also QFileSystemModel
http://doc.qt.io/qt-5/qfilesystemmodel.html#details
to be used with views.

also, just to be sure u saw it
http://doc.qt.io/qt-5/model-view-programming.html

Good intro on how it fits together.

Hello,
Well it's says there in the question. Don't pass a QWindow to the QFileDialog::getOpenFileName function. A window is not a widget and it expects QWidget. You could just use NULL (or whatever its equivalent in python is).

Kind regards.

Hi and welcome to devnet,

How are you updating your progress bar ?

Hi, thanks!

I call the child QMainWindow from the parent QMainWindow as follows:

self.responseBox = responseBox(self)

This is the code initializing the child QMainWindow:

class responseBox(QMainWindow): def __init__(self, parent): QMainWindow.__init__(self, parent) self.setWindowFlags(QtCore.Qt.Window | QtCore.Qt.CustomizeWindowHint | QtCore.Qt.WindowMinimizeButtonHint | QtCore.Qt.WindowMaximizeButtonHint) self.setWindowModality(Qt.NonModal)

The full source code of the application is available online:
https://github.com/sam81/pychoacoustics
The child main window is created on line 834 here
and the code initializing it is here

I'll try to generate a small reproducible example and post it here as soon as I have time.

@errolflynn You should write self.button1.clicked.connect(ft_handler) - this will register the function ft_handler as a slot for the clicked signal. On http://doc.qt.io/qt-5/qabstractbutton.html you see that the signature of that signal is void clicked(bool checked). In other words, when the signal is activated, your handler is called as ft_handler(checked) where checked is either True or False. Per the signature of the clicked signal, this is the only information you will get out of the signal.

If you want to pass additional parameters, you indeed will need to create a separate function that encodes those extra parameters and passes them to the handler. In Python it makes a lot of sense to use a lambda for it, for instance:
self.button1.clicked.connect(lambda checked: fct_handler(par1, par2, par3, checked))

Hope this helps

@esekyere after a very short search on google i got this :

loader = QUiLoader() file = QFile(":/forms/myform.ui") file.open(QFile.ReadOnly) myWidget = loader.load(file, self) file.close()

found out!
dropEvent() method of DragWidget() class needed to be modfied to
get X and Y of dropped icon and pass those value to self.minimumSize()

if newIcon.y()+32 > self.minimumHeight(): self.setMinimumHeight(newIcon.y()+32) if newIcon.x()+32 > self.minimumWidth(): self.setMinimumWidth(newIcon.x()+32)

There must have a been a strange glitch at some point somewhere...

Same problem. Qt 5.8, Python 3.6

I solved I by moving from PyQT5.4.1 to PyQT5.3.2.

Did you get any errors when you try to run it?

The following works perfectly for me on Mac OSX 10.8, Python3.4, Qt5.4:

test.qml

import QtQuick 2.2 import QtQuick.Controls 1.1 ApplicationWindow{ width: 400 height: 300 visible: true title: qsTr("Hello") Label{ text: qsTr("Hello") anchors.centerIn: parent } }

run.py

from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtQml import * from sys import argv, exit def createApplication(): app=QGuiApplication(argv) engine=QQmlApplicationEngine(app) engine.load(QUrl("test.qml")) return app if __name__=="__main__": app=createApplication() exit(app.exec_())

To execute:

$ python run.py