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Thread: Rendering Error using FileDialog on Linux (Ubuntu 12.04)

  1. #1
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    Default Rendering Error using FileDialog on Linux (Ubuntu 12.04)

    I have encountered an odd rendering error when trying to use FileDialog in a program that I am developing. This program currently uses Qt version 5.4.2. Before running the program, I performed a native compile on a Parallel’s Virtual Machine with the following specifications:
    • Ubuntu 12.04 using Unity Desktop Environment
    • 64-bit
    • 2 CPUs with 8 GB memory
    • 1024 MB Video Memory with 3D acceleration


    When the program first opens a FileDialog, the dialog doesn't seem to render fully
    FileDialogRenderingError_1.jpg

    Then, when you click on an item within the dialog, it adjusts to the following
    FileDialogRenderingError_2.jpg

    The directory navigation tree that is suppose to appear in the center section of the dialog remains empty, so no files or other directories can be selected. This makes the dialog completely unusable.

    I have many other dialogs within this program that seem to render just fine - it is only the FileDialog that seems to be causing me trouble.

    Does anyone have any insight into this issue? Any help would be extremely appreciated!!!!

  2. #2
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    Default Re: Rendering Error using FileDialog on Linux (Ubuntu 12.04)

    Hi, do you open your file dialog using one of the static functions or do you construct it yourself?

    Ginsengelf

  3. #3
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    Default Re: Rendering Error using FileDialog on Linux (Ubuntu 12.04)

    I have been using two of the static functions, QFileDialog::getOpenFileName and QFileDialog::getSaveFileName

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    Default Re: Rendering Error using FileDialog on Linux (Ubuntu 12.04)

    Still no luck fixing this error:

    I replaced my the static function QFileDialog::getOpenFileName with the following code, and I got the same response:

    Qt Code:
    1. QFileDialog fileDialog(this);
    2. fileDialog.setFileMode(QFileDialog::ExistingFile);
    3. fileDialog.setNameFilter(tr("Script Files (*.py)"));
    4. QStringList fileNames;
    5. if (fileDialog.exec()) fileNames = fileDialog.selectedFiles();
    To copy to clipboard, switch view to plain text mode 

  5. #5
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    Default Re: Rendering Error using FileDialog on Linux (Ubuntu 12.04)

    Hi, I'm having exactly the same problem. Did you find the solution?


    Added after 1 8 minutes:


    This was a known bug and it is solved by passing the dialog the option QFileDialog:: DontUseNativeDialog, according to this link.
    Last edited by jesusdz; 5th February 2016 at 16:02.

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