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Code Issues Projects Releases Activity

Fixed slider info displaying on right graph border

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This commit is contained in:
Martin Tůma
2016-03-30 01:48:48 +02:00
parent eec797125b
commit f469b4f600
3 changed files with 34 additions and 12 deletions
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20
src/graphview.cpp
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@ -27,6 +27,9 @@ GraphView::GraphView(QWidget *parent)
_scene = new Scene(this);
setScene(_scene);
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
_xAxis = new AxisItem(AxisItem::X);
_yAxis = new AxisItem(AxisItem::Y);
@ -148,9 +151,6 @@ void GraphView::loadData(const QVector<QPointF> &data)
pi->setPen(pen);
_scene->addItem(pi);
_graphs.append(pi);
if (_graphs.size() > 1)
_sliderInfo->hide();
}
void GraphView::redraw()
@ -223,9 +223,7 @@ void GraphView::redraw(const QSizeF &size)
_slider->setPos(QPointF(sp * r.width(), r.bottom()));
_scene->addItem(_slider);
const QPainterPath &path = _graphs.at(0)->path();
QPointF p = path.pointAtPercent(sp);
_sliderInfo->setText(QString::number(-p.y() * _yScale, 'f', _precision));
_sliderInfo->setVisible(_graphs.size() == 1);
r = _scene->itemsBoundingRect();
_info->setPos(r.topLeft() + QPointF(r.width()/2
@ -262,13 +260,10 @@ void GraphView::clear()
_scene->removeItem(_xAxis);
if (_yAxis->scene() == _scene)
_scene->removeItem(_yAxis);
if (_slider->scene() == _scene)
_scene->removeItem(_slider);
if (_info->scene() == _scene)
_scene->removeItem(_info);
_sliderInfo->show();
_slider->clear();
_info->clear();
@ -320,7 +315,7 @@ void GraphView::emitSliderPositionChanged(const QPointF &pos)
qreal val = pos.x() / _slider->area().width();
emit sliderPositionChanged(val * _bounds.width());
if (!_sliderInfo->isVisible())
if (_graphs.size() > 1)
return;
const QPainterPath &path = _graphs.at(0)->path();
@ -331,6 +326,11 @@ void GraphView::emitSliderPositionChanged(const QPointF &pos)
qreal y = yAtX(path, val * _bounds.width());
qreal r = (y - br.bottom()) / br.height();
SliderInfoItem::Side s = (pos.x() + _sliderInfo->boundingRect().width()
> _slider->area().right()) ? SliderInfoItem::Left : SliderInfoItem::Right;
_sliderInfo->setSide(s);
_sliderInfo->setPos(QPointF(0, _slider->boundingRect().height() * r));
_sliderInfo->setText(QString::number(-y * _yScale, 'f', _precision));
}