updating visibility based on QVariantList

[mzimmers]

Hi all -

I'm trying to build on my learning from this earlier thread. In my C++, I have a property defined:

private:
  QVariantList m_columnCapList;
public:
  Q_PROPERTY( QVariantList columnCapStatus MEMBER m_columnCapList NOTIFY columnCapsUpdated)
signals:
  void columnCapsUpdated(QVariantList columnCapsList);

And a singleton of this class is properly exposed to QML, etc. I fill this list with boolean values. Each element corresponds to a rectangle in a QML view; I want the rectangle's visibility to be derived from the value in the list. Here's what I've tried so far:

Repeater {
	id: columnCaps
	model: wellPlateColNames.length
	Rectangle {
		visible: issViewModel.columnCapStatus[index]
		x: 100 + index + (100)
		y: 100 + index + (100)
		height: 50
		width: 50
		color: 'pink'
	}
}

But this doesn't work. I've also tried the Connections type, without success. I figure I'm probably over-thinking this (as usual), so...what's the crisp-and-clean way to set the rectangles' visibilities based on C++ data?

Thanks...

[J.Hilk]

@mzimmers

so...what's the crisp-and-clean way to set the rectangles' visibilities based on C++ data?

probably:

Repeater {
	id: columnCaps
	model: columnCapStatus
	Rectangle {
		visible: modelData
		x: 100 + index + (100)
		y: 100 + index + (100)
		height: 50
		width: 50
		color: 'pink'
	}

[mzimmers]

I'm getting an error at startup:

ReferenceError: columnCapList is not defined

I've renamed a few items, so I'm showing the definition again below:

  Q_PROPERTY( QVariantList columnCapList
              MEMBER m_columnCapList
              NOTIFY columnCapsUpdated)
  Q_INVOKABLE bool getColumnCapStatus(int index);
  QVariantList m_columnCapList;

The QML:

Repeater {
	id: columnCaps
	model: columnCapList

	Rectangle {
		visible: modelData
		x: index + (50 * index)
		y: index - (50 * index)
		height: 50
		width: 50
		color: 'pink'
	}

Any idea what I'm doing wrong?

[J.Hilk]

@mzimmers can you show the singleton exposure to the JSEngine ?

[mzimmers]

@J-Hilk this routine is called by a "master" exposure routine:

void IssApi::ExportContextPropertiesToQml(QQmlEngine *engine) {
  engine->rootContext()->setContextProperty("issViewModel", this);
...

[J.Hilk]

@mzimmers ok:

so this should work than

model: issViewModel.columnCapStatus

[mzimmers]

Oh, sheesh...I can't believe I forgot that. Thanks, J.Hilk.