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QScrollArea static background-image and QLabels

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  • mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by mrjj
    #2

    Hi
    QLabels are also QWidgets.
    You must specify better whom you want affected.
    Using QWidget as selector will take all.

    If you only have one scrollarea , maybe you can use use names ?

    You could also try
    QLabel{} in end of stylesheet.

    S 1 Reply Last reply
    0
    • mrjjM mrjj

      Hi
      QLabels are also QWidgets.
      You must specify better whom you want affected.
      Using QWidget as selector will take all.

      If you only have one scrollarea , maybe you can use use names ?

      You could also try
      QLabel{} in end of stylesheet.

      S Offline
      S Offline
      SHRED4RED
      wrote on last edited by
      #3

      @mrjj You are right. But I try used QWidget#scrollArea or QScrollArea#scrollArea - but nothing. there is no image at all.
      Note: I write style sheet in Design

      mrjjM 1 Reply Last reply
      0
      • S SHRED4RED

        @mrjj You are right. But I try used QWidget#scrollArea or QScrollArea#scrollArea - but nothing. there is no image at all.
        Note: I write style sheet in Design

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #4

        @SHRED4RED

        You set stylesheet on ScrollArea or on mainwindow?

        try QLabel{} in end of stylesheet for fast test. might just work.

        S 1 Reply Last reply
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        • mrjjM mrjj

          @SHRED4RED

          You set stylesheet on ScrollArea or on mainwindow?

          try QLabel{} in end of stylesheet for fast test. might just work.

          S Offline
          S Offline
          SHRED4RED
          wrote on last edited by
          #5

          @mrjj I already tried.
          QWidget {...} Qlabel {empty or background-image: none}

          But widgetScrollAreaContents is parent for QLabels. And QLabel copy properties.

          set stelysheet on ScrollArea

          mrjjM 1 Reply Last reply
          1
          • S SHRED4RED

            @mrjj I already tried.
            QWidget {...} Qlabel {empty or background-image: none}

            But widgetScrollAreaContents is parent for QLabels. And QLabel copy properties.

            set stelysheet on ScrollArea

            mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by
            #6

            @SHRED4RED
            Yep, stylesheets are always cascading. and when selector is QWidget, all children
            are affected.

            If you set a background color QLabel last in sheet. does it show ?

            S 1 Reply Last reply
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            • mrjjM mrjj

              @SHRED4RED
              Yep, stylesheets are always cascading. and when selector is QWidget, all children
              are affected.

              If you set a background color QLabel last in sheet. does it show ?

              S Offline
              S Offline
              SHRED4RED
              wrote on last edited by
              #7

              @mrjj doesn't show it.

              Okey, mb you can explain me: when I use

              QWidget
              {
              ...
              }
              style sheet set for all widgets.

              but why when I use QScrollArea {...} picture doesn't show at all. Why?
              Which widget does set style sheet and show picture? I try QAbstractScrollArea - none, QAbstractScrollArea > QWidget - none, QAbstractScrollArea > QWidget > QWidget = widgetScrollAreaContents - is wrong for me, QAbstractScrollArea > QWidget > QWidget > QWidget = my labels . Okey, but where QWidget which show picture, when i use QWidget{...} because it execute good for me (static picture in area, but bad than Qlabel use properties too :( how i can find this a right QWidget? )

              mrjjM 1 Reply Last reply
              1
              • S SHRED4RED

                @mrjj doesn't show it.

                Okey, mb you can explain me: when I use

                QWidget
                {
                ...
                }
                style sheet set for all widgets.

                but why when I use QScrollArea {...} picture doesn't show at all. Why?
                Which widget does set style sheet and show picture? I try QAbstractScrollArea - none, QAbstractScrollArea > QWidget - none, QAbstractScrollArea > QWidget > QWidget = widgetScrollAreaContents - is wrong for me, QAbstractScrollArea > QWidget > QWidget > QWidget = my labels . Okey, but where QWidget which show picture, when i use QWidget{...} because it execute good for me (static picture in area, but bad than Qlabel use properties too :( how i can find this a right QWidget? )

                mrjjM Offline
                mrjjM Offline
                mrjj
                Lifetime Qt Champion
                wrote on last edited by
                #8

                Hi
                QScrollArea might not draw background at all.
                its scrollAreaWidgetContents you can see.
                #scrollAreaWidgetContents {
                background-color: rgb(255, 255, 0);
                }
                does set color.

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                • mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #9

                  Ok it does seem to clear background.
                  alt text

                  had to change QscrollArea to transparent to see through.
                  But scrollAreaWidgetContents covers all area so its that you see.

                  S 1 Reply Last reply
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                  • mrjjM mrjj

                    Ok it does seem to clear background.
                    alt text

                    had to change QscrollArea to transparent to see through.
                    But scrollAreaWidgetContents covers all area so its that you see.

                    S Offline
                    S Offline
                    SHRED4RED
                    wrote on last edited by
                    #10

                    @mrjj sorry for my stupidity... Thank you so much

                    mrjjM 1 Reply Last reply
                    0
                    • S SHRED4RED

                      @mrjj sorry for my stupidity... Thank you so much

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #11

                      @SHRED4RED
                      Its not stupid. :)
                      StyleSheets is a bit tricky and sometimes its not apparent whom draw what where.
                      Like Views have a viewport object and QScrollArea also have an internal helper widget.
                      and i really wish we could write
                      QWidget, !QLabel {
                      }
                      There is some negative/reverse selectors but did not work for me.

                      S 1 Reply Last reply
                      0
                      • mrjjM mrjj

                        @SHRED4RED
                        Its not stupid. :)
                        StyleSheets is a bit tricky and sometimes its not apparent whom draw what where.
                        Like Views have a viewport object and QScrollArea also have an internal helper widget.
                        and i really wish we could write
                        QWidget, !QLabel {
                        }
                        There is some negative/reverse selectors but did not work for me.

                        S Offline
                        S Offline
                        SHRED4RED
                        wrote on last edited by
                        #12

                        @mrjj You helped me a lot. Just scrollAreaWidgetContents didn't are transparent... But I didn't understand it . Thank you very much for your time and advice!!!

                        mrjjM 1 Reply Last reply
                        0
                        • S SHRED4RED

                          @mrjj You helped me a lot. Just scrollAreaWidgetContents didn't are transparent... But I didn't understand it . Thank you very much for your time and advice!!!

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by mrjj
                          #13

                          @SHRED4RED
                          Np. that's why i hang out here.
                          Remember to mark it solved :)
                          (ps i bumped your reputation so you dont have to wait x mins to answer)

                          1 Reply Last reply
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