52 lines
1.0 KiB
C++
52 lines
1.0 KiB
C++
#include <cmath>
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#include "Color.h"
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#include "util/misc.h"
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namespace pdf2htmlEX {
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using std::ostream;
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Color::Color()
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{
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memset(this, 0, sizeof(Color));
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}
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Color::Color(double r, double g, double b, bool transparent)
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:transparent(transparent)
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{
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rgb.r = (GfxColorComp)(r * gfxColorComp1);
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rgb.g = (GfxColorComp)(g * gfxColorComp1);
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rgb.b = (GfxColorComp)(b * gfxColorComp1);
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}
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Color::Color(const GfxRGB& rgb)
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:transparent(false), rgb(rgb) { }
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ostream & operator << (ostream & out, const Color & color)
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{
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if(color.transparent)
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out << "transparent";
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else
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out << color.rgb;
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return out;
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}
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void Color::get_gfx_color(GfxColor & gc) const
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{
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gc.c[0] = rgb.r;
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gc.c[1] = rgb.g;
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gc.c[2] = rgb.b;
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}
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double Color::distance(const Color & other) const
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{
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double dr = (double)rgb.r - other.rgb.r,
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dg = (double)rgb.g - other.rgb.g,
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db = (double)rgb.b - other.rgb.b;
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return sqrt((dr * dr + dg * dg + db * db) / (3.0 * gfxColorComp1 * gfxColorComp1));
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}
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} // namespace pdf2htmlEX
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