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38 lines
1014 B
C++
38 lines
1014 B
C++
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#include "tooltip.h"
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#include "temperaturegraphitem.h"
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TemperatureGraphItem::TemperatureGraphItem(const Graph &graph,
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QGraphicsItem *parent) : GraphItem(graph, parent)
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{
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qreal sum = 0;
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for (int j = 1; j < graph.size(); j++)
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sum += graph.at(j).y() * (graph.at(j).s() - graph.at(j-1).s());
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_avg = sum/graph.last().s();
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setToolTip(toolTip(Metric));
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}
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QString TemperatureGraphItem::toolTip(Units units) const
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{
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ToolTip tt;
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qreal scale = (units == Metric) ? 1.0 : C2FS;
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qreal offset = (units == Metric) ? 0 : C2FO;
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QString su = (units == Metric) ?
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QChar(0x00B0) + tr("C") : QChar(0x00B0) + tr("F");
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tt.insert(tr("Average"), QString::number(avg() * scale + offset, 'f', 1)
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+ UNIT_SPACE + su);
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tt.insert(tr("Maximum"), QString::number(max() * scale + offset, 'f', 1)
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+ UNIT_SPACE + su);
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tt.insert(tr("Minimum"), QString::number(min() * scale + offset, 'f', 1)
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+ UNIT_SPACE + su);
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return tt.toString();
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}
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void TemperatureGraphItem::setUnits(Units units)
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{
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setToolTip(toolTip(units));
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}
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