Plugin & Designer

[fpujol]

Hello,

I have a QLabel and QLineEdit that forms part of plugin for a designer. When I use it in a Dialog I don't see the key cursor blink of QLineEdit, here's my code:

akLabelName = new AKLabel(); //inherits from QLabel
akFieldEdit = new AKField(); //inherits from QLineEdit

setFocusPolicy(Qt::StrongFocus);
//akFieldEdit->setFocus();
akFieldEdit->installEventFilter( this );
akFieldEdit->setFocusPolicy( Qt::StrongFocus );
setFocusProxy(akFieldEdit);

QHBoxLayout *qHBoxLayout = new QHBoxLayout();
qHBoxLayout->addWidget(akLabelName);
qHBoxLayout->addWidget(akFieldEdit);

QVBoxLayout *qVBoxLayout = new QVBoxLayout();
qVBoxLayout->addLayout(qHBoxLayout);
setLayout(qVBoxLayout);

[marcel]

What does eventFilter in your dialog?
I assume that you implemented it since you install the dialog as event filter for the line edit.

[marcel]

You create those object without a parent. That is the problem.
Add "this" as parent for the label and line edit.

[marcel]

Therefore, the dialog will not forward any focus events to your widgets.

[fpujol]

I don't understand you, if I use the Qt Designer and I create a new dialog and I put my plugin and I make a preview when the QlineEdit plugin receives the focus the key cursor don't blink. In Qt Designer there's a similiar plugin in the scratchpad "frame" that is similar to my plugin and his key cursor blink.

[wysota]

You create those object without a parent. That is the problem.
Add "this" as parent for the label and line edit.

No. Adding widgets to a layout reparents them.

I don't understand you, if I use the Qt Designer and I create a new dialog and I put my plugin and I make a preview when the QlineEdit plugin receives the focus the key cursor don't blink. In Qt Designer there's a similiar plugin in the scratchpad "frame" that is similar to my plugin and his key cursor blink.

Marcel asked you for the event filter. Could we see its code?

[marcel]

No. Adding widgets to a layout reparents them.

Yes, you're right( from QWidget::setLayout ):

if (l->parent() != this) {
        l->setParent(this);
        l->d_func()->reparentChildWidgets(this);
        l->invalidate();

if (l->parent() != this) {
        l->setParent(this);
        l->d_func()->reparentChildWidgets(this);
        l->invalidate();

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But the layout won't be set if the dialog already has a layout.
This could be the problem. Or the eventFilter.

[fpujol]

oohhh excuse me my friends I found the problem. I found this methods that some day I use to do a test and then I don't remembered to quit it.

void focusInEvent ( QFocusEvent * event );
void focusOutEvent ( QFocusEvent * event );

Thanks a lot, now I see the key cursor to blink is so nice.