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35 lines
727 B
C++
35 lines
727 B
C++
#include <QLocale>
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#include "tooltip.h"
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#include "powergraphitem.h"
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PowerGraphItem::PowerGraphItem(const Graph &graph, GraphType type,
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QGraphicsItem *parent) : GraphItem(graph, type, parent)
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{
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qreal sum = 0;
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_max = graph.first().y();
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for (int i = 1; i < graph.size(); i++) {
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qreal y = graph.at(i).y();
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sum += y * (graph.at(i).s() - graph.at(i-1).s());
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if (y > _max)
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_max = y;
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}
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_avg = sum/graph.last().s();
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setToolTip(toolTip());
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}
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QString PowerGraphItem::toolTip() const
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{
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ToolTip tt;
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QLocale l(QLocale::system());
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tt.insert(tr("Maximum"), l.toString(max(), 'f', 1)
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+ UNIT_SPACE + tr("W"));
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tt.insert(tr("Average"), l.toString(avg(), 'f', 1)
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+ UNIT_SPACE + tr("W"));
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return tt.toString();
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}
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