My custom Qt Designer widget does not change size!

jdent

Hi,

I have a custom chart defined like this:

QtCustomChart::QtCustomChart(QWidget *parent)
    : QWidget(parent)
{
    series = new QLineSeries;
    series->append(0, 6);
    series->append(2, 4);
    series->append(3, 8);
    series->append(7, 4);
    series->append(10, 5);

    chart = new QChart();
    chart->legend()->hide();
    chart->addSeries(series);
    chart->createDefaultAxes();
    chart->setTitle("Simple Line Chart");

    chart_view = new QChartView{ chart, this};
    auto rec = chart_view->geometry();

    auto r = this->geometry();

    chart_view->setGeometry(r);
}

The icon is visible in Qt Designer so the plugin is ok. However when I resize the chart in the target ui, it does not resize the chart!!

How do I make the plugin to grow and shrink?

Regards,
Juan

jdent

@jdent I have the answer!!
I changed the implementation of the resizeEvent:

void QtCustomChart::resizeEvent(QResizeEvent* event)
{
    chart_view->resize(event->size());
	QWidget::resizeEvent(event);
}

and now it works!!

jdent

@jdent I implemented resizeEvent like this:

QtCustomChart::QtCustomChart(QWidget *parent)
    : QWidget(parent)
{
    series = new QLineSeries;
    series->append(0, 6);
    series->append(2, 4);
    series->append(3, 8);
    series->append(7, 4);
    series->append(10, 5);

    chart = new QChart();
    chart->legend()->hide();
    chart->addSeries(series);
    chart->createDefaultAxes();
    chart->setTitle("Simple Line Chart");

    chart_view = new QChartView{ chart, this};
    auto rec = chart_view->geometry();

    rect = this->geometry();
    chart_view->setGeometry(rect);
}

// the event:

void QtCustomChart::resizeEvent(QResizeEvent* event)
{
    auto r = this->geometry();
    if (r.height() < rect.height() || r.width() < rect.height())
    {
        chart_view->setGeometry(rect);
    }
	QWidget::resizeEvent(event);
}

but it is not changing the size of the chart!!

jdent

@jdent I have the answer!!
I changed the implementation of the resizeEvent:

void QtCustomChart::resizeEvent(QResizeEvent* event)
{
    chart_view->resize(event->size());
	QWidget::resizeEvent(event);
}

and now it works!!

ChrisW67

@jdent said in My custom Qt Designer widget does not change size!:

How do I make the plugin to grow and shrink?

You apply a layout to the widget rather than resorting to manually dealing with the geometry of the client chart