[Qt-qml] Settings / State Saving proposal for QML

[Jason H]

Here is a question. Can it be set up so that writes are automatically committed?
For example, if I change the rect width, something is setting that property. Can the be automatically persisted?



________________________________
From: Jason H <scorp1us at yahoo.com>
To: João Abecasis <joao.abecasis at nokia.com>; "qt-qml at qt.nokia.com" <qt-qml at qt.nokia.com>
Sent: Thursday, November 17, 2011 3:18 PM
Subject: Re: [Qt-qml] Settings / State Saving proposal for QML


I like the idea, however I would probably have used XPath or http://docs.persvr.org/documentation/jsonquery
I also don't understand why the QML db API is enough?


and done something like:
Rect {

width: xpathquery(storage, "/" + id + "/width");

}
Storage {
id:storage
source: "sample.db"

}

I'd throw a curve out there to you and say with source, you can do "http://some.site.com/", and supply account credentials.
Implement a lightweight HTTP server and have persistent remote settings storage :-)


________________________________
From: João Abecasis <joao.abecasis at nokia.com>
To: qt-qml at qt.nokia.com
Sent: Thursday, November 17, 2011 10:34 AM
Subject: [Qt-qml] Settings / State Saving proposal for QML

Ahem,

I have a very basic working prototype for a generic Settings API for QML that I would like to bring up for discussion.

The API is pretty minimal, here's example usage:

    Rectangle {
        id: main
        height: 480
        width: 640
        color: settings.color

        Settings {
            id: settings
            property string color: "blue"
            property alias height: main.height
            property alias width: main.width
        }
    }
    
I pushed the code to a clone of the Desktop Components repository over on gitorious. There's some further information in the commit message:

 
   https://qt.gitorious.org/~biochimia/qt-components/biochimias-desktop/commit/c1ac32929065f24783f4d254d1786dce8202b274

While this needs further refinement and exploration (e.g., ignore the fact that it is using QSettings underneath ;-), what do people around here think of this approach?

Cheers,


João

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