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Forum: (Graphical) User Interfaces
Re: Question Adding application icon to Qt GUI (Mojca Miklavec)
Re: None Re: Adding application icon to Qt GUI (Garnier Laurent)
Date: 07 Aug, 2013
From: Mojca Miklavec <Mojca Miklavec>

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 (
>> )
>>    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 :

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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1 None: Re: Adding application icon to Qt GUI   (garnier - 07 Aug, 2013)
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