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Thread: Application for both Mac OS X and Windows. Windows OK. Mac OS X is not OK.

  1. #1
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    Default Application for both Mac OS X and Windows. Windows OK. Mac OS X is not OK.

    Hi,

    I need an advice from someone who has an experience in deploying applications for both platforms: Windows and Mac OS X.
    The problem is that, in windows, all additional files such a local sort of database saved via QDataStream class, external binary resources (*.rcc), and translations (*.qm files) may be simply uploaded in the same directory and the application can find it. On the other hand, Mac OS X causes problems unless I provide absolute path. Unless I build all resources into an application, Mac cannot see them. I really need that run-time load mode available because the "database" file can be updated frequently.

    I read about Mac OS X that it uses a special folder called "bundle". This is like folder with special directories: Contents/, MacOS/, and Resources/ etc. I thought I could upload the local database to Resources/ but it does not work--Mac still cannot see it. Any idea where I should keep all extra files so that they can be found my iOS system?


    Thanks

    PS.I just thought I could use something that returns the application's path. It is somehow solution but I was wondering if there is a better one as well.

  2. #2
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    Default Re: Application for both Mac OS X and Windows. Windows OK. Mac OS X is not OK.

    Why don't you put the database into "Resources" and use relative path (E.g. ../Resources/database.db)?
    Qt Assistant -- rocks!
    please, use tags [CODE] & [/CODE].

  3. #3
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    Default Re: Application for both Mac OS X and Windows. Windows OK. Mac OS X is not OK.

    I am simply not familiar with file system of Mac OS X. I did not know that. Where does the "relative path" relate to? If I, for instance, use "file_name", in terms of bundle, where does it relate to?

  4. #4
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    Default Re: Application for both Mac OS X and Windows. Windows OK. Mac OS X is not OK.

    The bundle it's just a special directory which have the following structure:
    myapp.app
    |----Contents
    |----MacOS
    |----myapp (this is the executable)
    |----Resources (optionally)
    ...
    (See Deploying an Application on Mac OS X.)
    QCoreApplication::applicationDirPath() returns the directory where an executable is located.
    So, putting this info together, you can get relative path to your database:
    Qt Code:
    1. ...
    2. QString path = "mydatabase.db";
    3. QString fullDatabasePath = QString::fromLatin1("%1/../Resources/%2")
    4. .arg(QCoreApplication::applicationDirPath(), path);
    5. ...
    To copy to clipboard, switch view to plain text mode 
    Something like this.
    Qt Assistant -- rocks!
    please, use tags [CODE] & [/CODE].

  5. The following user says thank you to spirit for this useful post:

    ZikO (4th September 2012)

  6. #5
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    Default Re: Application for both Mac OS X and Windows. Windows OK. Mac OS X is not OK.

    Thanks. It's working

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