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QPainter save() and restore()

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  • A Offline
    A Offline
    Asperamanca
    wrote on last edited by
    #1

    When using QPainter::save(),
    "A save() must be followed by a corresponding restore()"

    The safest way to ensure this would be to use the RAII idiom, much like in QMutexLocker and friends.

    Does such a convenience class already exist for QPainter?

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    • G Offline
      G Offline
      giesbert
      wrote on last edited by
      #2

      AFAIK it does not. But it should be easy to create one :-)

      Nokia Certified Qt Specialist.
      Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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      • A Offline
        A Offline
        Asperamanca
        wrote on last edited by
        #3

        Yes it is. Took about 5 Minutes.

        Still, it's so easy I thought someone would have already done it in Qt.

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        • G Offline
          G Offline
          giesbert
          wrote on last edited by
          #4

          You could contribute it to Qt via http://www.qt-project.org/

          Nokia Certified Qt Specialist.
          Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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          • G Offline
            G Offline
            goetz
            wrote on last edited by
            #5

            Or leave it as a snippet in the "wiki":/wiki/Category:Snippets for the time being :)

            http://www.catb.org/~esr/faqs/smart-questions.html

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