[Interest] QML "container" inheritience and sharing IDs

[Nurmi J-P]

On Fri, 2014-01-03 at 07:23 -0800, Jason H wrote:
> I have a structured QML document that is nothing more than Items and
> Images. Some Images are collected into an Item and an id is assigned.
> 
> 
> 
> 
> 
> Structure1.qml
> Item {
> id:item
> Image { id: image1}
> Image { id: image2}
> 
> }
> 
> 
> I then inherit this structure, and set the additional info at runtime:
> CompleteObject1.qml
> Structure {
> Component.onCompleted: {
> image1.source = "image1.png"
> image2.source = "image2.png"
> }
> 
> }
> 
> 
> But when I load CompleteObject.qml it says "image1 not defined"
> How can I expose the Structure ids to the CompleteObject?
> 
> 
> (The structure and objects are functionally independent, except that
> they have matching IDs, such that StructureN intersects
> CompleteObjectN makes an instance )
> 

Hi,

You cannot access component's internals directly, but you can expose
them as properties:

Structure.qml:
Item {
    id: item

    // give access to the whole Image element
    property alias imageItem: myImage

    // alternatively, just expose the source
    property alias iconSource: myImage.source

    Image { id: myImage }
}

CompleteObject.qml:
Structure {
    iconSource: "foo.png"
    Component.onCompleted: imageItem.foo = bar
}

-- 
J-P Nurmi