General and Desktop

That repo might help you.

Hi, Yes it is correct. You are the one who knows what should happen with these gestures.

@lansing said in QImage to Qpixmap conversion is too slow: QImage *img= new QImage(":/cross.png"); myGLPainter->drawImage(img); That's the wrong thing to do as you will leak images doing so. Beside the initialization issue pointed by @Christian-Ehrlicher can you provide the stack trace of your crash ?

@eyllanesc Thank you very much, you are right and it works now. I thought it was a function of prepare, so it would be identical.

A simple way to do it is to show or hide these widgets(1,2,3,4,5) for V click. More code will be involved if qtreeview is used.

@JoeCFD No, I refuse to. I tried once, perfectly healthy code that I maintained for 3 years on MingW didn't even want to compile (it was Qt only, no external libs), I refused to waste my time on Microsoft shenanigans. Anyway, I got it to work. I was missing one thing in MinGW. For the record: to use WinAPI with MinGW (I do it via Msys2) two packages are needed (I was missing the latter): msys2-w32api-headers and msys2-w32api-runtime. .pro file in the end looks like I was expecting: LIBS += -LC:/msys64/usr/lib/w32api/ -liphlpapi LIBS += -LC:/msys64/usr/lib/w32api/ -lws2_32 INCLUDEPATH += C:/msys64/usr/include/w32api DEPENDPATH += C:/msys64/usr/lib/w32api Thank you everyone who contributed, thanks to your input I was able to trace and find my error. As always, your help is much appreciated.

check your ui_*** files to see the font settings.

@django-Reinhard said in need help on model/view: .. but I've no idea, how to translate a modelindex from source model to proxy model. Ok, I found the mapping methods in AbstractProxyModel ... ... but model filtering is pretty unusable. Don't know, whether its an issue of QFileSystemModel or whether it applies to all models ... My idea was to show only directories in treeview and only files in tableview. Actually I have one QFileSystemModel and two subclasses of QSortFilterProxyModel. When I code filterAcceptsRow to accept directories only, I won't get any entry in treeview. I have to accept drives together with directories, although a drive is never shown in treeview. Same happens with filterAcceptRow for the files model. When I code filterAcceptsRow to accept anything except directories, I won't get any entry in treeview. That's some kind of ridiculous. The root entry for the table view is a directory and the tableview shall only show the children of that entry. So why must the root entry pass the filter criteria? It will never be shown, so from my point of view there's no reason at all. Very strange in deed. Lets see, what happens with self coded models ...

Finally discovered the error here. Inspired here: https://forum.qt.io/topic/39319/solved-qprinterinfo-availableprinters-don-t-list-available-printers/2 the .dll file was from the previous version before upgrade and somehow didnt get upgraded along. So copying the file manually to the location instead of the previous dll version made it. Thanks for help, Kosmic

What's wrong with QTextDocument::toHtml()?

@IknowQT said in qlabel html format: I put a table in html format on the label, but it occupies the area of pixmap above It does not, I would say. It's your scrollArea.

@IknowQT Have a look here: https://doc.qt.io/qt-5/stylesheet-examples.html#customizing-qabstractscrollarea

@Rodrigo-B I would have to check the source code of the class but I am lazy to do so, if you want to understand the cause or check the source code or debug Qt.

@Bert59 I do not reproduce the problem, try deleting the build folder and recompile

@SGaist Thank you very much, it worked!

https://support.apple.com/en-us/HT202043

@ungrown Hi Yes. using names or class types for the selector. Sadly there is no "not" outside of pseudo-states as far as I know. Sometimes you can also cheat and apply the stylesheet to MainWindow central as most widgets lives there but not the main MenuBar.

No it's not especially if you are doing them infrequently. Beware if you are using a QSqlQueryModel or one of its subclasses, you can't do that.