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109 lines
3.9 KiB
C++
109 lines
3.9 KiB
C++
/////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2017 Statoil ASA
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//
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// ResInsight is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
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// for more details.
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//
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/////////////////////////////////////////////////////////////////////////////////
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#include "RiaColorTools.h"
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#include "cvfMath.h"
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#include <algorithm>
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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bool RiaColorTools::isBrightnessAboveThreshold(cvf::Color3f backgroundColor)
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{
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if (backgroundColor.r() + backgroundColor.g() + backgroundColor.b() > 1.5f)
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{
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return true;
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}
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return false;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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cvf::Color3f RiaColorTools::computeOffsetColor(cvf::Color3f color, float offsetFactor)
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{
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float gridR = 0.0;
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float gridG = 0.0;
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float gridB = 0.0;
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if (isBrightnessAboveThreshold(color))
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{
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gridR = color.r() - (color.r() * offsetFactor);
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gridG = color.g() - (color.g() * offsetFactor);
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gridB = color.b() - (color.b() * offsetFactor);
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}
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else
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{
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gridR = color.r() + (1.0f - color.r()) * offsetFactor;
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gridG = color.g() + (1.0f - color.g()) * offsetFactor;
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gridB = color.b() + (1.0f - color.b()) * offsetFactor;
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}
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return cvf::Color3f(cvf::Math::clamp(gridR, 0.0f, 1.0f),
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cvf::Math::clamp(gridG, 0.0f, 1.0f),
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cvf::Math::clamp(gridB, 0.0f, 1.0f));
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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cvf::Color3f RiaColorTools::darkContrastColor()
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{
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return cvf::Color3f::fromByteColor(10, 10, 10);
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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cvf::Color3f RiaColorTools::brightContrastColor()
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{
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return cvf::Color3f::WHITE;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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cvf::Color3f RiaColorTools::constrastColor(cvf::Color3f backgroundColor)
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{
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if (isBrightnessAboveThreshold(backgroundColor))
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{
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return darkContrastColor();
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}
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return brightContrastColor();
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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QColor RiaColorTools::toQColor(cvf::Color3f color, float alpha)
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{
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QColor qcolor(color.rByte(), color.gByte(), color.bByte());
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qcolor.setAlphaF(alpha);
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return qcolor;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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QColor RiaColorTools::toQColor(cvf::Color4f color)
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{
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return toQColor(color.toColor3f(), color.a());
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}
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