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53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
#include <QLocale>
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#include "tooltip.h"
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#include "elevationgraphitem.h"
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ElevationGraphItem::ElevationGraphItem(const Graph &graph, GraphType type,
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QGraphicsItem *parent) : GraphItem(graph, type, parent)
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{
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_ascent = _descent = 0;
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_min = _max = graph.first().y();
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for (int j = 1; j < graph.size(); j++) {
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qreal cur = graph.at(j).y();
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qreal prev = graph.at(j-1).y();
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if (cur > prev)
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_ascent += cur - prev;
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if (cur < prev)
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_descent += prev - cur;
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if (cur < _min)
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_min = cur;
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if (cur > _max)
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_max = cur;
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}
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setToolTip(toolTip(Metric));
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}
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QString ElevationGraphItem::toolTip(Units units) const
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{
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ToolTip tt;
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qreal scale = (units == Metric) ? 1.0 : M2FT;
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QString su = (units == Metric) ? tr("m") : tr("ft");
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QLocale l(QLocale::system());
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tt.insert(tr("Ascent"), l.toString(ascent() * scale, 'f', 0)
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+ UNIT_SPACE + su);
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tt.insert(tr("Descent"), l.toString(descent() * scale, 'f', 0)
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+ UNIT_SPACE + su);
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tt.insert(tr("Maximum"), l.toString(max() * scale, 'f', 0)
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+ UNIT_SPACE + su);
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tt.insert(tr("Minimum"), l.toString(min() * scale, 'f', 0)
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+ UNIT_SPACE + su);
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return tt.toString();
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}
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void ElevationGraphItem::setUnits(Units units)
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{
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setToolTip(toolTip(units));
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}
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