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Thread: Can QPicture scale and rotate ?

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    Question Can QPicture scale and rotate ?

    The documentation shows how a QPicture can be "painted" repeatedly at different locations, but I would like to know if I can scale and/or rotate it as well ?

    Are there any examples that demonstrate this ?

    Thanks.

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    Default Re: Can QPicture scale and rotate ?

    The documentation also says that you have to use QPixmap if you want to modify a image

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    Default Re: Can QPicture scale and rotate ?

    I think you misunderstand the question.

    The docs say,
    The QPicture class is a paint device that records and replays QPainter commands.
    OK, so then let me define a QPicture that draws a square.
    Next, I play the QPicture onto the current QPainter.
    Next, I use the QPainter's scale method to double the scale and rotate method to turn things 45 degrees clockwise
    Now, can I "play" my QPicture again and get a double-size, rotated square ?

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    Default Re: Can QPicture scale and rotate ?

    You can rotate/scale the painter before drawing the picture on it.

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    Default Re: Can QPicture scale and rotate ?

    Quote Originally Posted by wysota View Post
    You can rotate/scale the painter before drawing the picture on it.
    So then the example I roughed out would work ?

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    Default Re: Can QPicture scale and rotate ?

    Yes, it will work.

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    Default Re: Can QPicture scale and rotate ?

    Quote Originally Posted by igor View Post
    I think you misunderstand the question.

    The docs say,

    OK, so then let me define a QPicture that draws a square.
    Next, I play the QPicture onto the current QPainter.
    Next, I use the QPainter's scale method to double the scale and rotate method to turn things 45 degrees clockwise
    Now, can I "play" my QPicture again and get a double-size, rotated square ?
    Oh ok, sorry

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