diff options
author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /graphics/epix/Color_Base.h |
Initial commit
Diffstat (limited to 'graphics/epix/Color_Base.h')
-rw-r--r-- | graphics/epix/Color_Base.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/graphics/epix/Color_Base.h b/graphics/epix/Color_Base.h new file mode 100644 index 0000000000..7c369f33ba --- /dev/null +++ b/graphics/epix/Color_Base.h @@ -0,0 +1,84 @@ +/* + * Color_Base.h -- ePiX::Color interface + * + * This file is part of ePiX, a C++ library for creating high-quality + * figures in LaTeX + * + * Version 1.1.17 + * Last Change: September 13, 2007 + * + * + * Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 + * Andrew D. Hwang <rot 13 nujnat at zngupf dot ubylpebff dot rqh> + * Department of Mathematics and Computer Science + * College of the Holy Cross + * Worcester, MA, 01610-2395, USA + * + * + * ePiX is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * ePiX is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public + * License for more details. + * + * You should have received a copy of the GNU General Public License + * along with ePiX; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef EPIX_COLOR_BASE +#define EPIX_COLOR_BASE + +#include <string> +#include <vector> + +namespace ePiX { + + class Color_Base { + + protected: + struct RGB_Densities + { + // ensures densities are in [0,1] + RGB_Densities (double r, double g, double b); + + double m_dens_red, m_dens_green, m_dens_blue; + }; + + public: + virtual ~Color_Base() { } + virtual Color_Base* clone() const = 0; + + // blending (all non-const) + // apply us as filter + virtual Color_Base& filter(const Color_Base&) = 0; + + // scale intensities + virtual Color_Base& operator*= (double) = 0; + + // clip d to [0,1], then return (1-d)*this + d*col + virtual Color_Base& blend(const Color_Base&, double) = 0; + + // add channels + virtual Color_Base& superpose(const Color_Base&) = 0; + + // return negative color + virtual Color_Base& invert() = 0; + + // internal colorname and densities + virtual std::string model() const = 0; + virtual std::string name() const = 0; + virtual std::vector<double> densities() const = 0; + + bool operator== (const Color_Base& col) const; + virtual RGB_Densities to_rgb() const = 0; + + }; // end of class Color_Base + +} // end of namespace + +#endif /* EPIX_COLOR_BASE */ |