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37 lines
1.6 KiB
C++
37 lines
1.6 KiB
C++
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#include "statscolors.h"
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// Colors created using the Chroma.js Color Palette Helper
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// https://vis4.net/palettes/#/50|d|00108c,3ed8ff,ffffe0|ffffe0,ff005e,743535|1|1
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static const QColor binColors[] = {
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QRgb(0x00108c), QRgb(0x0f1c92), QRgb(0x1a2798), QRgb(0x23319d), QRgb(0x2a3ba3),
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QRgb(0x3144a8), QRgb(0x374eae), QRgb(0x3e58b3), QRgb(0x4461b8), QRgb(0x4b6bbd),
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QRgb(0x5274c2), QRgb(0x587ec7), QRgb(0x6088cc), QRgb(0x6791d0), QRgb(0x6f9bd4),
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QRgb(0x78a5d8), QRgb(0x81aedb), QRgb(0x8ab8df), QRgb(0x95c2e2), QRgb(0xa0cbe4),
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QRgb(0xacd5e6), QRgb(0xb9dee7), QRgb(0xc7e7e7), QRgb(0xd7efe7), QRgb(0xeaf8e4),
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QRgb(0xfff5d8), QRgb(0xffead0), QRgb(0xffe0c8), QRgb(0xffd5c0), QRgb(0xffcab8),
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QRgb(0xffbfb0), QRgb(0xffb4a8), QRgb(0xffa99f), QRgb(0xfc9e98), QRgb(0xf99490),
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QRgb(0xf48b89), QRgb(0xf08182), QRgb(0xea787b), QRgb(0xe46f74), QRgb(0xde666e),
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QRgb(0xd75e67), QRgb(0xcf5661), QRgb(0xc64f5b), QRgb(0xbd4855), QRgb(0xb3434f),
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QRgb(0xa83e49), QRgb(0x9d3a44), QRgb(0x90383f), QRgb(0x83363a), QRgb(0x743535)
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};
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// Pick roughly equidistant colors out of the color set above
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// if we need more bins than we have colors (what chart is THAT?) simply loop
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QColor binColor(int bin, int numBins)
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{
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if (numBins == 1 || bin < 0 || bin >= numBins)
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return fillColor;
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if (numBins > (int)std::size(binColors))
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return binColors[bin % std::size(binColors)];
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// use integer math to spread out the indices
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int idx = bin * (std::size(binColors) - 1) / (numBins - 1);
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return binColors[idx];
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}
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// Figure out if we want a light or a dark label
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QColor labelColor(int bin, size_t numBins)
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{
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return (binColor(bin, numBins).lightness() < 150) ? lightLabelColor : darkLabelColor;
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}
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