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b5aac29cea
To enable rudimentary theming, collect all colors in a new theme class. The class has to be passed down to the various items. In general the items save a reference to the them in the constructor. Alternatively, they might also just query the StatsView everytime they need to access a color. For now, it's hard the say what is preferred: a reference per item or a function call per invokation? Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
30 lines
645 B
C++
30 lines
645 B
C++
// A regression line and confidence area
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#ifndef REGRESSION_H
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#define REGRESSION_H
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#include "chartitem.h"
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class StatsAxis;
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class StatsTheme;
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class StatsView;
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struct regression_data {
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double a,b;
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double res2, r2, sx2, xavg;
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int n;
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};
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class RegressionItem : public ChartPixmapItem {
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public:
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RegressionItem(StatsView &view, regression_data data, StatsAxis *xAxis, StatsAxis *yAxis);
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~RegressionItem();
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void updatePosition();
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void setFeatures(bool regression, bool confidence);
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private:
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const StatsTheme &theme; // Initialized once in constructor
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StatsAxis *xAxis, *yAxis;
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regression_data reg;
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bool regression, confidence;
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};
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#endif
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