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statistics: don't crash if the QCharts QML modules aren't found

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We don't really give a user visible error message which is kind of a problem,
but at least we don't crash anymore.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2021-01-03 16:57:59 -08:00
parent 6a6dd0888a
commit 1f1d82b1b3
1 changed files with 9 additions and 5 deletions
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14
stats/statsview.cpp
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@ -65,14 +65,18 @@ StatsView::StatsView(QWidget *parent) : QQuickWidget(parent),
eventFilter(this) eventFilter(this)
{ {
setResizeMode(QQuickWidget::SizeRootObjectToView); setResizeMode(QQuickWidget::SizeRootObjectToView);
// if we get a failure to load the QML file (e.g., when the QtCharts QML modules aren't found)
// the chart will be null
setSource(urlStatsView); setSource(urlStatsView);
chart = getChart(rootObject()); chart = getChart(rootObject());
connect(chart, &QtCharts::QChart::plotAreaChanged, this, &StatsView::plotAreaChanged); if (chart) {
connect(&diveListNotifier, &DiveListNotifier::numShownChanged, this, &StatsView::replotIfVisible); connect(chart, &QtCharts::QChart::plotAreaChanged, this, &StatsView::plotAreaChanged);
connect(&diveListNotifier, &DiveListNotifier::numShownChanged, this, &StatsView::replotIfVisible);
chart->installEventFilter(&eventFilter); chart->installEventFilter(&eventFilter);
chart->setAcceptHoverEvents(true); chart->setAcceptHoverEvents(true);
chart->legend()->setVisible(false); chart->legend()->setVisible(false);
}
} }
StatsView::~StatsView() StatsView::~StatsView()