Language Bindings

Thank you! Second example is really what I wanted!

Hi HugoMandes,

see the Qt-Documentation -> http://doc.qt.io/qt-5/qprocess.html
It's also possible to get the window handle from the Qt Widget (http://doc.qt.io/qt-5/qwidget.html#winId).

But in the past I want to embedded the Microsoft Excel inside the Qt application and this not work very well. I think it's easier to use only the microsoft eco system if possible - or a work around before embedding/drawing/event-handling a application inside a Qt application.

Regards,
Jakob

@SGaist said in Qtreeview &QSortFilterProxyModel, select/scroll/expand to entry (pyqt5):

mapFromSource

Thanks for your answer!
While I was so sure, I had tried it already, obviously I had not.... It now works.!

Thanks a lot!!

@SGaist thx for the hint. Will look into it

Hi and welcome to devnet,

Are you sure you library can be found ?

What version of Qt are you using ?
On what platform ?

Thanks a lot for the hints!

I had tried these without success but your input triggered me to look further in this direction and I discovered something called selectionbehavior.

In pyqt5 I use:
self.view.setSelectionBehavior(QAbstractItemView.SelectItems)

Thanks again!

Great, I had missed that....
I simply could not believe that it is actually that easy...

Thanks a lot!

@Stanislav-Silnicki long story short: i did it.

write correct targets interdependency in .pro: #------------------------------------------------- # # Project created by QtCreator 2018-04-02T04:41:55 # #------------------------------------------------- QT -= core gui TARGET = andy TEMPLATE = lib DEFINES += ANDROID_ANDY_LIB_LIBRARY SOURCES += \ andy_native.cpp HEADERS += \ com_andy_EartActivity.h \ andy_native.h firsttarget.target = firsttarget firsttarget.commands += javac -cp /home/user/Android/platforms/android-26/android.jar:/home/user/Unity-2018.1.0b8/Editor/Data/PlaybackEngines/AndroidPlayer/Variations/mono/Release/Classes/classes.jar -sourcepath java/src java/src/com/andy/AndyActivity.java -d java/classes secondtarget.target = secondtarget secondtarget.commands = javah -cp java/src com.andy.AndyActivity lasttarget.target = lasttarget lasttarget.commands = jar cvfM andy.jar -C java/classes . libandy.so QMAKE_EXTRA_TARGETS = firsttarget secondtarget lasttarget PRE_TARGETDEPS = firsttarget secondtarget DISTFILES += \ java/src/com/andy/AndyActivity.java

this will produce first three targets while in first make invocation.

Than, the last forth target (.jar) has to be built during second make invocation, that is added via QtCreators menu:

0_1522691307624_Screenshot from 2018-04-02 20-47-48.png

note, last two default build steps in QtCreators menu are disabled. This saves compile time. It just adds no value to my goal.

We are the champions! ))

UPDATE: just couple sidenotes for those, who stucks in android's development like I constantly do:

a) packing native libYourNativeLib.so in java's .jar will make it hard to init... so, finally I refused this approach and just left binary lib for deployment as a separate file.
b) if your Android app will crush due to inability to load gnustl_shared, just add this line in qmake's .pro:

QMAKE_LIBS_PRIVATE -= -lgnustl_shared

I had the same error with gcc 7.3. I ended up just using clang for compiling as that seemed to work:
CC=clang CXX=clang++ python setup.py build --qmake=/usr/bin/qmake-qt5 --ignore-git --build-tests --jobs=8

Hi and welcome to devnet,

There's no event loop running at all. Therefore signals and slots won't be working.

The following is my implementation (and a usage example) of a singleton I use regularly:

try: from PyQt5.QtCore import pyqtWrapperType except ImportError: from sip import wrappertype as pyqtWrapperType class Singleton(pyqtWrapperType, type): def __init__(cls, name, bases, dict): super().__init__(name, bases, dict) cls.instance=None def __call__(cls,*args,**kw): if cls.instance is None: cls.instance=super().__call__(*args, **kw) return cls.instance if __name__=="__main__": from PyQt5.QtCore import QObject, pyqtSlot, pyqtProperty class MyObject(QObject, metaclass=Singleton): def __init__(self, parent=None, **kwargs): super().__init__(parent, **kwargs) self._x=0 def x(self): return self._x @pyqtSlot(int) def setX(self, x): self._x=x x=pyqtProperty(int, x, setX) print(MyObject().x) MyObject().x=1 print(MyObject().x)

I've actually shared this example/technique so many times now that I just quickly created a git repo (https://github.com/jazzycamel/PyQt5Singleton) and a PyPi package (https://pypi.python.org/pypi/PyQt5Singleton) so you can just install it via pip:

$ pip install PyQt5Singleton

and use it (as above):

from PyQt5.QtCore import QObject, pyqtSlot, pyqtProperty from PyQt5Singleton import Singleton class MyObject(QObject, metaclass=Singleton): def __init__(self, parent=None, **kwargs): super().__init__(parent, **kwargs) self._x=0 def x(self): return self._x @pyqtSlot(int) def setX(self, x): self._x=x x=pyqtProperty(int, x, setX) if __name__=="__main__": print(MyObject().x) MyObject().x=1 print(MyObject().x)

Hope this helps :)

@CLang

I now tried your example with HTML: it would look like this:

QString plotYAxis = tr("Emission Factor(g/m²h)");

and I got this nicely rendered on a QLabel.

found out the reason. it should be window_flags=Qt.WindowFlags(), not window_flags=None

@user4592357
And do what if it isn't? You're only going to raise, and self.mw.addDockWidget will raise anyway if it isn't. Plus self.mw = QMainWindow() would have raised in the first place if it couldn't create a main window.

Of course you can check everywhere if you wish. But that can be a lot of code. I wouldn't bother here.

P.S.
Unless you're doing it for a school project. In which case, goodness knows...

In the python case, that's indeed something debatable. Most of the time, people don't need to implement __del__.

What I would do is to store the settings once you close the corresponding dialog so that you avoid the trouble you had with the unintended interruption you have (unless it's done while the dialog is open).

In the extreme case, you can even save you settings on modification if you have an "apply immediately" without cancel style of application preferences.

No it's not.

See this excellent article from Arne Mertz on the subject.

Same as before except that you will have two Q_SIGNAL in the connect statement if using the old version.

@Dl10 said in insert text to textbox and..:

I managed to thank you all !

it looks like you have solved your problem, so two things please: write a reply showing how you actually solved it :-) and two, don't forget to mark you post as solved. Thanks.

Ok. i cant find any other reporting that issue.
You could look in https://bugreports.qt.io
If you can reproduce it with a minimal example, then open bug report.