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Thread: Is there a widget to enable the user to resize a widget at runtime like ms paint

  1. #1
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    Question Is there a widget to enable the user to resize a widget at runtime like ms paint

    Hello at all!

    I'm working with Qt 4 in c++ for a few weeks and I really love it!
    Now I have a question and I hope somebody can help me with that.

    In Qt Designer, the user can resize widgets with the mouse. Also you
    can resize your graphics in many other programs, like webapplications
    or MS Word and Paint.
    Is there a widget in Qt 4 that can contain another widget and enable
    the user to resize the contained widget with the mouse?

    paint.png

    Thank you very much!

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    Default Re: Is there a widget to enable the user to resize a widget at runtime like ms paint

    I dont think there is anything in-built that does that.
    If you have a problem, CUT and PASTE your code. Do not retype or simplify it. Give a COMPLETE and COMPILABLE example of your problem. Otherwise we are all guessing the problem from a fabrication where relevant details are often missing.

  3. The following user says thank you to amleto for this useful post:

    eve (20th June 2012)

  4. #3
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    Default Re: Is there a widget to enable the user to resize a widget at runtime like ms paint

    Thank you for your reply!

    Do you have an idea how I could easily implement such a functionality myself?
    I tried a QScrollArea with a QDialog Widget in it because it has the setSizeGripEnabled(bool) function,
    but of course that did not work
    I don't really want the user to enter the widget size in a dialog, that is inconvenient...

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    Default Re: Is there a widget to enable the user to resize a widget at runtime like ms paint

    You need to create your own widget or graphics item (as you should probably use Graphics View and not widgets).
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


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    Default Re: Is there a widget to enable the user to resize a widget at runtime like ms paint

    Thanks for your reply!

    I have a custom PaintArea that extends from QWidget.
    With the QGraphicsView, I can only display QGraphicsScene Objects and not the PaintArea, right?

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    Default Re: Is there a widget to enable the user to resize a widget at runtime like ms paint

    It's a matter of choosing the base class for your PaintArea. You can derive it from QGraphicsWidget instead of QWidget.
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


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