QML and Qt Quick

Try to put ".js" in the alias like: <file alias="componentCreator.js">qml/CC/componentCreation.js</file>

color: "transparent" works correctly for me in an ApplicationWindow on Linux.

@Pheelbert Yes missed the mentioning of data() here. You're Welcome :-) Happy Coding.

Every signal has a corresponding signal handler by deafult in QML. What is your second question ?

@iMasoud You're Welcome :) It is documented here. Happy Coding ..

@krobinson Try updating those properties by assignment i.e using = when height or width change signal handler.

Hi @Pradeep-Kumar Honestly I too had never thought of inheritance and relationship in QML but Ill try to explain. Accroding to your code: Adding One in Two and Three makes a has-a relationship between them i.e Two and Three contains (has i.e has a relationship) One. I think there is no inheritance in between them. Now in QML terms according to me inheritance would be something like this: One.qml Rectangle { width: 50 height: 50 color: "red" } Two.qml One { width: 200 height: 200 property string myProperty Text { anchors.centerIn: parent text: "Two" } } Now here Two extends One which means it extends the Rectangle plus has its own properties as well and also contains new element Text. If you run Two.qml you will see it will be of width and height 200 but it will have its color "red" which it inherited from One.qml. This means Two inherited the color property as well has have it own new properties.

@betty_crokker Why isn't there a TableViewHeaderDelegate widget that I can "inherit" and just modify the font? Or is there, and I just don't know where to look? There is no such way to do so. No such functionality provided yet. Is there an example somewhere showing how to get the UI for sorting to work? You can use the method described here. Basically it is a QML wrapper around QSortFilterProxyModel and works with ListModel.

Same question, that I have. In QML, how do you create a model with children? ex of what i'd want (that doesn't work): model: ListModel { ListElement { name: "Parent" children: [ ListElement { name: "Child0" }, ListElement { name: "Child1" } ] } }

@Kofr You can't emit beginInsertRows and endInsertRows. They are not signals.

Hi @Sfatima, I don't know about Qt Quick 1.1 but in Qt Quick 2.0 and onwards you have propagateComposedEvents. Setting it allows the mouse events to propagate to other areas. BTW QtQuick 1.x is deprecated now.

@SGaist That's a good idea, I'll ask them. Thank you

Not quite understand your question.. Generally speaking, Javascript application use a Promise object for deferred and asynchronous operation. For example , do something when two or more asynchronous operations completed (in any order). Qt do not bundle any Promise implementation by default. You could get a one from my github repo: benlau/quickpromise Example Promise { resolveWhen: Q.all([endpoint1. onReplyStatusChanged,endpoint2. onReplyStatusChanged]); onFulfilled: { // It will be triggered only if both of the endpoint emitted the signal controller.setData1(); controller.setData2(); } }

Hi @p3c0 , Thank you for your reply. It really was helpful.

You did a complete rebuild as well? The run of qmake does not create an error code, but it does not introduce a moc statement into makefile. I guess you are using a shadow for compiling. Delete the whole shadow folder, rerun qmake once again and rebuild. If you think it imay be a bug related to Qt 5.5 you can check on JIRA.

Solved thank to the help of inz on IRC. I've added the line gc() just after the line canvas.imageData = ctx.getImageData(0, 0, canvas.width, canvas.height) // this causes a memory leak And the memleak disappeared. Seems like the automatic garbage collector didn't run often enough for my use case, so the call to gc() is necessary to force the garbage collection.