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Get screen size from QML

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  • T Offline
    T Offline
    tomjanssens
    wrote on last edited by
    #5

    Hello,

    I know I can do that. But I don't want to set a hard coded number because then I am stuck to one screen size. I want to retrieve the screen size of the device and use that. Would this be possible in plain QML, or do I need to do it in C++ and pass the values to QML?

    Cheers
    Tom

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    0
    • S Offline
      S Offline
      syrianzoro
      wrote on last edited by
      #6

      Yes, you need to pass the values to QML from c++ look the following:

      Obtaining a Desktop Widget

      The QApplication::desktop() function is used to get an instance of QDesktopWidget.

      The widget's screenGeometry() function provides information about the geometry of the available screens with. The number of screens available is returned by screenCount, and the screenCountChanged() signal is emitted when screens are added or removed. The screen number that a particular point or widget is located in is returned by screenNumber().

      Qt is the future

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      • M Offline
        M Offline
        mbrasser
        wrote on last edited by
        #7

        Hi Tom,

        Have you tried setting the SizeRootObjectToView resize mode on your QDeclarativeView? That should ensure that the root object is the same size as the view. With that in place, the easiest way to center a child in its parent is with anchors:

        @MyRect { anchors.centerIn: parent }@

        you should also be able to center manually with e.g.

        @MyRect { x: parent.width/2 - width/2; ... }@

        Regards,
        Michael

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        • T Offline
          T Offline
          tomjanssens
          wrote on last edited by
          #8

          Hi,

          The SizeRootObjectToView works perfectly. Just what I needed.

          Cheers
          Tom

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          • K Offline
            K Offline
            Kysymys
            wrote on last edited by
            #9

            Is there a pure QML way to achieve this?

            Okay strike that.
            -Is there a pure QML way to achieve this?-

            I found the place where to put the "--fulscreen" parameter in Qt-Creator.

            \o/ \o/ Kudos ...

            Paholaisen Kysymys

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            • A Offline
              A Offline
              AlterX
              wrote on last edited by
              #10

              Qt 5.x has QML Screen object you can use within an Item.

              Qt Ambassador
              Real-time cooperative teams: http://www.softairrealfight.net
              Free Real-time network platform sdk: https://github.com/AlterX76/Solomon

              https://codereview.qt-project.org/...

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              • clogwogC Offline
                clogwogC Offline
                clogwog
                wrote on last edited by
                #11

                [quote author="AlterX" date="1395760356"]Qt 5.x has QML Screen object you can use within an Item.[/quote]

                thanks !!

                i just added:

                @import QtQuick.Window 2.0@

                then set the width/height like :

                @ApplicationWindow {
                id: applicationWindow1

                width: Screen.width
                height: Screen.height@
                

                and it works

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                • clogwogC Offline
                  clogwogC Offline
                  clogwog
                  wrote on last edited by
                  #12

                  [quote author="AlterX" date="1395760356"]Qt 5.x has QML Screen object you can use within an Item.[/quote]

                  thanks !!

                  i just added:

                  @import QtQuick.Window 2.0@

                  then set the width/height like :

                  @ApplicationWindow {
                  id: applicationWindow1

                  width: Screen.width
                  height: Screen.height@
                  

                  and it works

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                  • A Offline
                    A Offline
                    AlterX
                    wrote on last edited by
                    #13

                    Good...so tag thread's title with [SOLVED]

                    Qt Ambassador
                    Real-time cooperative teams: http://www.softairrealfight.net
                    Free Real-time network platform sdk: https://github.com/AlterX76/Solomon

                    https://codereview.qt-project.org/...

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                    • A Offline
                      A Offline
                      AlterX
                      wrote on last edited by
                      #14

                      Good...so tag thread's title with [SOLVED]

                      Qt Ambassador
                      Real-time cooperative teams: http://www.softairrealfight.net
                      Free Real-time network platform sdk: https://github.com/AlterX76/Solomon

                      https://codereview.qt-project.org/...

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