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Adding SVG to resource with alias and referencing in QML

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  • J JoeCFD
    23 Sept 2022, 13:33

    @SPlatten Yes. You can drop qrc: and alias + root / is good enough.

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    SPlatten
    wrote on 23 Sept 2022, 13:34 last edited by
    #24
    This post is deleted!
    J 1 Reply Last reply 23 Sept 2022, 13:35
    0
    • S SPlatten
      23 Sept 2022, 13:34

      This post is deleted!

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      JoeCFD
      wrote on 23 Sept 2022, 13:35 last edited by
      #25

      @SPlatten without alias you need it.

      S 1 Reply Last reply 23 Sept 2022, 13:37
      0
      • J JoeCFD
        23 Sept 2022, 13:35

        @SPlatten without alias you need it.

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        SPlatten
        wrote on 23 Sept 2022, 13:37 last edited by SPlatten
        #26
        This post is deleted!
        J 1 Reply Last reply 23 Sept 2022, 13:46
        0
        • S SPlatten
          23 Sept 2022, 13:37

          This post is deleted!

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          JoeCFD
          wrote on 23 Sept 2022, 13:46 last edited by JoeCFD
          #27

          @SPlatten I see. All of my images have alias. Therefore, no qrc: is needed anywhere. It is good you drop it as well without alias.
          I still use qrc for qml files since they do not have alias
          resources/qml/main.qml: source: "qrc:/qml/MainScreen.qml"
          resources/qml/main.qml: source: "qrc:/qml/SplashScreen.qml"
          I will try to remove it and let you know.

          Confirmed: qrc is not needed even when resource files do not have alias. qrc: can be dropped completely.
          But not sure why Qt did this. The code with or without qrc: should compile
          In Qt6 qml module version numbers are dropped. I am using Qt 5.15.2.

          S 1 Reply Last reply 23 Sept 2022, 13:52
          0
          • J JoeCFD
            23 Sept 2022, 13:46

            @SPlatten I see. All of my images have alias. Therefore, no qrc: is needed anywhere. It is good you drop it as well without alias.
            I still use qrc for qml files since they do not have alias
            resources/qml/main.qml: source: "qrc:/qml/MainScreen.qml"
            resources/qml/main.qml: source: "qrc:/qml/SplashScreen.qml"
            I will try to remove it and let you know.

            Confirmed: qrc is not needed even when resource files do not have alias. qrc: can be dropped completely.
            But not sure why Qt did this. The code with or without qrc: should compile
            In Qt6 qml module version numbers are dropped. I am using Qt 5.15.2.

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            SPlatten
            wrote on 23 Sept 2022, 13:52 last edited by SPlatten
            #28
            This post is deleted!
            J 1 Reply Last reply 23 Sept 2022, 13:54
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            • S SPlatten
              23 Sept 2022, 13:52

              This post is deleted!

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              JoeCFD
              wrote on 23 Sept 2022, 13:54 last edited by JoeCFD
              #29

              @SPlatten what is your Qt version? Is this on Linux?
              check the file path in your compiled qrc_images.cpp. All your images are compiled into this file. This is my setting.

              <RCC>
                  <qresource prefix="/res">
                      <file alias="background">images/SplashBackground.png</file>
                  </qresource>
              </RCC>
              
                  Image { /* background image works */
                      anchors.centerIn: parent
                      source: "/res/background"
                      width: parent.width
                      height: parent.height
                  }
              
              S 1 Reply Last reply 23 Sept 2022, 13:58
              0
              • J JoeCFD
                23 Sept 2022, 13:54

                @SPlatten what is your Qt version? Is this on Linux?
                check the file path in your compiled qrc_images.cpp. All your images are compiled into this file. This is my setting.

                <RCC>
                    <qresource prefix="/res">
                        <file alias="background">images/SplashBackground.png</file>
                    </qresource>
                </RCC>
                
                    Image { /* background image works */
                        anchors.centerIn: parent
                        source: "/res/background"
                        width: parent.width
                        height: parent.height
                    }
                
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                SPlatten
                wrote on 23 Sept 2022, 13:58 last edited by
                #30
                This post is deleted!
                S 1 Reply Last reply 26 Sept 2022, 07:37
                0
                • S SPlatten
                  23 Sept 2022, 13:58

                  This post is deleted!

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                  SPlatten
                  wrote on 26 Sept 2022, 07:37 last edited by SPlatten
                  #31

                  @JoeCFD , I decided to create a simple application to experiment with the resources. I used the same SVG file. The resource file:

                  <RCC>
                      <qresource prefix="/">
                          <file alias="stale.svg">stale.svg</file>
                          <file>mainWindow.qml</file>
                      </qresource>
                  </RCC>
                  

                  In the mainwindow:

                  void MainWindow::paintEvent(QPaintEvent *pobjEvt) {
                      Q_UNUSED(pobjEvt);
                  
                      QPainter objPainter(this);
                      QImage* pobjImage(new QImage(":/stale.svg"));
                  
                      bool blnIsNull(pobjImage->isNull());
                      qDebug() << QString("Image isNull: %1").arg(((blnIsNull == true) ? "Yes" : "No"));
                  
                      objPainter.drawImage(10, 10, *pobjImage);
                  }
                  

                  This works absolutely fine and the iamge is displayed correctly. I will not try to use this to figure out why the original isn't working.

                  S J 2 Replies Last reply 26 Sept 2022, 11:52
                  0
                  • S SPlatten
                    26 Sept 2022, 07:37

                    @JoeCFD , I decided to create a simple application to experiment with the resources. I used the same SVG file. The resource file:

                    <RCC>
                        <qresource prefix="/">
                            <file alias="stale.svg">stale.svg</file>
                            <file>mainWindow.qml</file>
                        </qresource>
                    </RCC>
                    

                    In the mainwindow:

                    void MainWindow::paintEvent(QPaintEvent *pobjEvt) {
                        Q_UNUSED(pobjEvt);
                    
                        QPainter objPainter(this);
                        QImage* pobjImage(new QImage(":/stale.svg"));
                    
                        bool blnIsNull(pobjImage->isNull());
                        qDebug() << QString("Image isNull: %1").arg(((blnIsNull == true) ? "Yes" : "No"));
                    
                        objPainter.drawImage(10, 10, *pobjImage);
                    }
                    

                    This works absolutely fine and the iamge is displayed correctly. I will not try to use this to figure out why the original isn't working.

                    S Offline
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                    SPlatten
                    wrote on 26 Sept 2022, 11:52 last edited by
                    #32
                    This post is deleted!
                    1 Reply Last reply
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                    • S SPlatten
                      26 Sept 2022, 07:37

                      @JoeCFD , I decided to create a simple application to experiment with the resources. I used the same SVG file. The resource file:

                      <RCC>
                          <qresource prefix="/">
                              <file alias="stale.svg">stale.svg</file>
                              <file>mainWindow.qml</file>
                          </qresource>
                      </RCC>
                      

                      In the mainwindow:

                      void MainWindow::paintEvent(QPaintEvent *pobjEvt) {
                          Q_UNUSED(pobjEvt);
                      
                          QPainter objPainter(this);
                          QImage* pobjImage(new QImage(":/stale.svg"));
                      
                          bool blnIsNull(pobjImage->isNull());
                          qDebug() << QString("Image isNull: %1").arg(((blnIsNull == true) ? "Yes" : "No"));
                      
                          objPainter.drawImage(10, 10, *pobjImage);
                      }
                      

                      This works absolutely fine and the iamge is displayed correctly. I will not try to use this to figure out why the original isn't working.

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                      JoeCFD
                      wrote on 26 Sept 2022, 13:58 last edited by JoeCFD
                      #33

                      Create at least two qrc files: one for images and one for qml. Better not to mix them up.

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                      26 Sept 2022, 13:58

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