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d36f52502e
It's still hackish and dirty, but server and client compies. Server starts, but throwes meaningless exception on any query. Client seems to be working fine. Linux compilation might (but shouldn't) be broken (not tested).
62 lines
1.3 KiB
C++
62 lines
1.3 KiB
C++
#pragma once
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#include <cstring>
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#include <cmath>
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#include <string>
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#define UNICODE_BAR_CHAR_SIZE (strlen("█"))
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/** Позволяет нарисовать unicode-art полоску, ширина которой отображается с разрешением 1/8 символа.
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*/
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namespace UnicodeBar
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{
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inline double getWidth(Int64 x, Int64 min, Int64 max, double max_width)
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{
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if (x <= min)
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return 0;
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if (x >= max)
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return max_width;
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return (x - min) * max_width / (max - min);
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}
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inline size_t getWidthInBytes(double width)
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{
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return ceil(width - 1.0 / 8) * UNICODE_BAR_CHAR_SIZE;
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}
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/// В dst должно быть место для barWidthInBytes(width) символов и завершающего нуля.
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inline void render(double width, char * dst)
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{
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size_t floor_width = floor(width);
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for (size_t i = 0; i < floor_width; ++i)
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{
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memcpy(dst, "█", UNICODE_BAR_CHAR_SIZE);
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dst += UNICODE_BAR_CHAR_SIZE;
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}
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size_t remainder = floor((width - floor_width) * 8);
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if (remainder)
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{
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memcpy(dst, &"▏▎▍▌▋▋▊▉"[(remainder - 1) * UNICODE_BAR_CHAR_SIZE], UNICODE_BAR_CHAR_SIZE);
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dst += UNICODE_BAR_CHAR_SIZE;
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}
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*dst = 0;
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}
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inline std::string render(double width)
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{
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std::string res(getWidthInBytes(width), '\0');
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render(width, &res[0]);
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return res;
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}
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}
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