|Message: Re: Adding application icon to Qt GUI||Not Logged In (login)|
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On Tue, 06 Aug 2013 15:33:34 GMT, garnier wrote:
> >> I'm trying to package Gate for MacPorts and would like to add an icon >> for the applications. >> >> This can be done with a Qt function ( >> http://qt-project.org/doc/qt-4.8/qwidget.html#windowIcon-prop ) >> >> void setWindowIcon ( const QIcon & icon ) >> >> This could easily be achieved somewhere in constructor G4UIQt::G4UIQt, >> close to, say, >> >> fMainWindow->setWindowTitle(QFileInfo( QCoreApplication::applicationFilePath() ).fileName()); >> fMainWindow->setWindowIcon(...); >> >> which sets the name. > > I think that you have already found the solution, but for all users, if you want to change the main windows icon for a Qt application, all is explain here : > http://doc.qt.digia.com/4.7/appicon.html
What is explained here is how to change the icon/appearance of the program even before the program is started in a system-dependent way. Yes, the current solution in Gate in MacPorts does exactly what is explained on that site, but this only works when double-clicking the app bundle. When calling the application from command-line (Gate --qt, or ./exampleB3 from examples in Geant4 for that matter), it still shows a boring black icon.
Thus what I would still like to achieve is the icon being set within the source code in a system-independent way. Quoting the first sentence of the link you sent me:
"The application icon, typically displayed in the top-left corner of an application's top-level windows, is set by calling the QWidget::setWindowIcon() method on top-level widgets."
I know that Gnuplot does that (and I know that the same code doesn't work in Qt5) and a wide variety of image formats works (even SVG), not just the system-dependent ones.
Geant4 could optionally set some generic G4 icon that user could easily change, maybe even interactively.
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