[Qt-qml] no basic property define confuse

[罗军]

Thank you.

I understand, but I confuse this syntax problem.

Rectangle {
    id: rootRectangle
    width: 300
    height: 300

    property Item myProperty: Text {
        parent: rootRectangle                  // ------ It works.
        id: myText
        text: "foobar"
        font.bold: true
        font.pixelSize: 20
        x: 40
        y: 40
    }
}



From: Eduardo Fleury 
Sent: Thursday, September 30, 2010 4:52 AM
To: 罗军 
Cc: qt-qml at trolltech.com 
Subject: Re: [Qt-qml] no basic property define confuse


Sorry I have to replying to myself once again. :-)

Caio and Daker here at the office pointed a mistake in my previous answer.


On Wed, Sep 29, 2010 at 3:52 PM, Eduardo Fleury <eduardo.fleury at openbossa.org> wrote:

  or else, use a Loader to show it somewhere else:

  Rectangle {
      Loader {
          delegate: myProperty   // assuming this is an initialized property of type Text
      }
  }



This is wrong in two ways:
1) The name of the property I intended to say is "sourceComponent", not "delegate".
2) As the name implies, it expects a Component, not a an Item (or Text). You can make "myProperty" of the type "Component" and that will work, but in that case you won't create the Text object yourself, instead will will be defining a Component and creating an instance of Text dynamically using Loader. (See Component and Loader docs for more info).


The short answer to make your first item be shown on the screen is to set its parent accordingly by doing:

myText1.parent = someOtherItemId

See attached example.

BR,
Eduardo
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