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How to stop loading single image mutltiple times on a screen

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  • R Offline
    R Offline
    RG90
    wrote on last edited by
    #3

    Here is some code

            Loader {
                focus: true
                anchors{
                               ---------------------------
                }
                asynchronous: true
    
                Binding {
                    target: loader.item
                    property: "focus"
                    value: container.activeFocus
                }
    
                Image {
                    id: img
                    objectName: "img"
    
                    asynchronous: true
    
                    source: (*.png")
    
                    fillMode: Image.PreserveAspectFit
                    anchors{
                        horizontalCenter: parent.horizontalCenter
                        verticalCenter: parent.verticalCenter
                    }
                }
            }
    

    Here I am using an Image inside a loader. the loader is trying to load image as manay has the buttons on the screen. I just want to load only one image on the screen. how can I do it

    1 Reply Last reply
    0
    • sierdzioS sierdzio

      Please provide some code sample, it's hard to know what you mean just from this description.

      R Offline
      R Offline
      RG90
      wrote on last edited by
      #4

      @sierdzio

      Here is some code

          Loader {
              focus: true
              anchors{
                             ---------------------------
              }
              asynchronous: true
      
              Binding {
                  target: loader.item
                  property: "focus"
                  value: container.activeFocus
              }
      
              Image {
                  id: img
                  objectName: "img"
      
                  asynchronous: true
      
                  source: (*.png")
      
                  fillMode: Image.PreserveAspectFit
                  anchors{
                      horizontalCenter: parent.horizontalCenter
                      verticalCenter: parent.verticalCenter
                  }
              }
          }
      

      Here I am using an Image inside a loader. the loader is trying to load image as manay has the buttons on the screen. I just want to load only one image on the screen. how can I do it

      1 Reply Last reply
      0
      • sierdzioS Offline
        sierdzioS Offline
        sierdzio
        Moderators
        wrote on last edited by
        #5

        Nothing in this snippet suggests how buttons are connected to the Image component. Actually, no buttons are shown in the snippet at all.

        Is source or sourceComponent set anywhere for the Loader? I don't see it. It is a big unusual to position a non-loaded component (in your case, Image) inside a Loader.

        source: (*.png") what's that about? Does not look like valid code.

        I'm sorry but this code is not enough to determine your problem. We need to know how you instantiate your buttons, and what is the connection between the image and buttons.

        (Z(:^

        R 2 Replies Last reply
        1
        • sierdzioS sierdzio

          Nothing in this snippet suggests how buttons are connected to the Image component. Actually, no buttons are shown in the snippet at all.

          Is source or sourceComponent set anywhere for the Loader? I don't see it. It is a big unusual to position a non-loaded component (in your case, Image) inside a Loader.

          source: (*.png") what's that about? Does not look like valid code.

          I'm sorry but this code is not enough to determine your problem. We need to know how you instantiate your buttons, and what is the connection between the image and buttons.

          R Offline
          R Offline
          RG90
          wrote on last edited by
          #6
          This post is deleted!
          1 Reply Last reply
          0
          • sierdzioS Offline
            sierdzioS Offline
            sierdzio
            Moderators
            wrote on last edited by
            #7

            @RG90 said in How to stop loading single image mutltiple times on a screen:

            source: R_URL
            sourceComponent: dividerSix

            You are setting your Image (dividerSix) in each delegate. So, each time that new delegate is instantiated, a new Image will be loaded.

            By the way, you should not set source and sourceComponent at the same time. Pick either one (you probably only need R_URL in your case).

            (Z(:^

            R 2 Replies Last reply
            0
            • sierdzioS sierdzio

              @RG90 said in How to stop loading single image mutltiple times on a screen:

              source: R_URL
              sourceComponent: dividerSix

              You are setting your Image (dividerSix) in each delegate. So, each time that new delegate is instantiated, a new Image will be loaded.

              By the way, you should not set source and sourceComponent at the same time. Pick either one (you probably only need R_URL in your case).

              R Offline
              R Offline
              RG90
              wrote on last edited by
              #8
              This post is deleted!
              1 Reply Last reply
              0
              • sierdzioS sierdzio

                @RG90 said in How to stop loading single image mutltiple times on a screen:

                source: R_URL
                sourceComponent: dividerSix

                You are setting your Image (dividerSix) in each delegate. So, each time that new delegate is instantiated, a new Image will be loaded.

                By the way, you should not set source and sourceComponent at the same time. Pick either one (you probably only need R_URL in your case).

                R Offline
                R Offline
                RG90
                wrote on last edited by
                #9

                @sierdzio
                ok, I would like to make even dividerSix as a dynamic as of buttons. how could I go it. Is their is a possibility of making both the components move dynamically. Can you help me on this.

                Thanks

                1 Reply Last reply
                1
                • sierdzioS sierdzio

                  Nothing in this snippet suggests how buttons are connected to the Image component. Actually, no buttons are shown in the snippet at all.

                  Is source or sourceComponent set anywhere for the Loader? I don't see it. It is a big unusual to position a non-loaded component (in your case, Image) inside a Loader.

                  source: (*.png") what's that about? Does not look like valid code.

                  I'm sorry but this code is not enough to determine your problem. We need to know how you instantiate your buttons, and what is the connection between the image and buttons.

                  R Offline
                  R Offline
                  RG90
                  wrote on last edited by
                  #10

                  @sierdzio

                  @sierdzio

                  GridView
                  {
                  signal buttonAction(int index, int action)

                  property int itemWidth: 195
                  property int itemHeight: 80

                  id: view
                  objectName: "view"

                  focus: true

                  anchors.fill: parent

                  cellHeight: view.height / 2
                  cellWidth: view.width / 3
                  flow: GridView.FlowTopToBottom

                  Component{

                  id: dividerSix

                  Image {
                      id: img
                      objectName: "img"
                  
                      asynchronous: true
                  
                      source: (T.skin + "/menu/divider_six.png")
                  
                      fillMode: Image.PreserveAspectFit
                      anchors{
                          horizontalCenter: parent.horizontalCenter
                          verticalCenter: parent.verticalCenter
                      }
                  }
                  

                  }

                  delegate:Component {

                  FocusScope {
                      id: container
                  
                      property bool current: GridView.isCurrentItem
                  
                      width: view.cellWidth
                      height: view.cellHeight
                  
                      Loader {
                          id: loader
                  
                          focus: true
                  
                          width: itemWidth
                          height: itemHeight
                  
                          anchors{
                              horizontalCenter: parent.horizontalCenter
                              verticalCenter: parent.verticalCenter
                          }
                  
                          asynchronous: true
                  
                          source: R_URL
                          sourceComponent: dividerSix
                  
                          Binding {
                              target: loader.item
                              property: "focus"
                              value: container.activeFocus
                          }
                  
                          Connections {
                              target: loader.item
                              onButtonAction: {
                                  switch (action) {
                                  case ButtonActions.PRESSED:
                                      view.highlightMoveDuration = 0;
                                      container.GridView.view.currentIndex = index;
                                      loader.item.forceActiveFocus();
                                      view.highlightMoveDuration = -1;
                                      break;
                                   }
                              }
                          }
                      }
                  }
                  

                  }
                  }

                  Here is my whole code. When I am adding sourceComponent to loader it is loading the img multiple times depending on buttons. How Can I stop it by loading it and just load only one image

                  1 Reply Last reply
                  0
                  • sierdzioS Offline
                    sierdzioS Offline
                    sierdzio
                    Moderators
                    wrote on last edited by
                    #11

                    @RG90 said in How to stop loading single image mutltiple times on a screen:

                    ok, I would like to make even dividerSix as a dynamic as of buttons. how could I go it. Is their is a possibility of making both the components move dynamically

                    Sorry but I don't understand what you mean at all.

                    What do you want to achieve, exactly? A button with an image inside it? How should it look like? Then such simple construct should work:

                    GridView {
                    
                      Repeater {
                        // put here how many items should be generated
                        Button {
                          text: "something " + index
                    
                          Image {
                             anchors.verticalCenter: parent.verticalCenter
                             anchors.right: parent.right
                             anchors.rightMargin: 5
                             source: "my image source"
                         }
                        }
                      }
                    }
                    

                    But I'm shooting blind here. I don't know what you are trying to achieve, and why you use Loaders so much. Are components loaded from the Internet?

                    (Z(:^

                    R 1 Reply Last reply
                    0
                    • sierdzioS sierdzio

                      @RG90 said in How to stop loading single image mutltiple times on a screen:

                      ok, I would like to make even dividerSix as a dynamic as of buttons. how could I go it. Is their is a possibility of making both the components move dynamically

                      Sorry but I don't understand what you mean at all.

                      What do you want to achieve, exactly? A button with an image inside it? How should it look like? Then such simple construct should work:

                      GridView {
                      
                        Repeater {
                          // put here how many items should be generated
                          Button {
                            text: "something " + index
                      
                            Image {
                               anchors.verticalCenter: parent.verticalCenter
                               anchors.right: parent.right
                               anchors.rightMargin: 5
                               source: "my image source"
                           }
                          }
                        }
                      }
                      

                      But I'm shooting blind here. I don't know what you are trying to achieve, and why you use Loaders so much. Are components loaded from the Internet?

                      R Offline
                      R Offline
                      RG90
                      wrote on last edited by
                      #12

                      @sierdzio

                      I want to make button to be dragged along with Image. I just want it has one component so that when a user tries to drag a button, even Image also get dragged by delegate behavior. Can we use two components in one delegate so that we can get this behavior?.

                      sierdzioS 1 Reply Last reply
                      0
                      • R RG90

                        @sierdzio

                        I want to make button to be dragged along with Image. I just want it has one component so that when a user tries to drag a button, even Image also get dragged by delegate behavior. Can we use two components in one delegate so that we can get this behavior?.

                        sierdzioS Offline
                        sierdzioS Offline
                        sierdzio
                        Moderators
                        wrote on last edited by
                        #13

                        @RG90 said in How to stop loading single image mutltiple times on a screen:

                        @sierdzio

                        I want to make button to be dragged along with Image. I just want it has one component so that when a user tries to drag a button, even Image also get dragged by delegate behavior. Can we use two components in one delegate so that we can get this behavior?.

                        Yes, of course. QML supports nesting, and that is what I already provided you in my previous comment.

                        A different solution (with dragging. Pseudo code, I have no time to test it), maybe it will suit you better:

                        Item {
                          width: 100
                          height: 100
                        
                          Drag.active: true
                        
                          RowLayout {
                            anchors.fill: parent
                            Button { ... }
                            Image { ... }
                          }
                        }
                        

                        (Z(:^

                        1 Reply Last reply
                        2
                        • R Offline
                          R Offline
                          RG90
                          wrote on last edited by RG90
                          #14

                          Thanks @sierdzio for your suggestion. my issue has been solved. I just used GridView inside a Flickable, which made much easier to me.

                          1 Reply Last reply
                          2
                          • sierdzioS Offline
                            sierdzioS Offline
                            sierdzio
                            Moderators
                            wrote on last edited by
                            #15

                            OK, so you wanted a scrollable/ flickable control, not to drag items around.

                            Fine, I'm happy you've got it to work :-)

                            (Z(:^

                            R 1 Reply Last reply
                            1
                            • sierdzioS sierdzio

                              OK, so you wanted a scrollable/ flickable control, not to drag items around.

                              Fine, I'm happy you've got it to work :-)

                              R Offline
                              R Offline
                              RG90
                              wrote on last edited by
                              #16

                              @sierdzio
                              I have one more question, how can I stop flickable/scrollable vertically. I just need it be scrollable only on X-axis(horizontally). How can I use flickableHorizontally propertty

                              1 Reply Last reply
                              0
                              • sierdzioS Offline
                                sierdzioS Offline
                                sierdzio
                                Moderators
                                wrote on last edited by
                                #17

                                Can't check the docs now, but it was something like:

                                flickableDirection: Flickable.flickHorizontally
                                

                                (Z(:^

                                R 1 Reply Last reply
                                2
                                • sierdzioS sierdzio

                                  Can't check the docs now, but it was something like:

                                  flickableDirection: Flickable.flickHorizontally
                                  
                                  R Offline
                                  R Offline
                                  RG90
                                  wrote on last edited by
                                  #18

                                  @sierdzio
                                  Yes, It worked for me.

                                  1 Reply Last reply
                                  2
                                  • sierdzioS Offline
                                    sierdzioS Offline
                                    sierdzio
                                    Moderators
                                    wrote on last edited by
                                    #19

                                    Great! Happy coding :-)

                                    (Z(:^

                                    1 Reply Last reply
                                    1

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