include/docmodel/color/Transformation.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  */
  10
  11 #pragma once
  12
  13 #include <docmodel/dllapi.h>
  14 #include <vector>
  15 #include <o3tl/hash_combine.hxx>
  16
  17 namespace model
  18 {
  19 /** Color transformation type */
  20 enum class TransformationType
  21 {
  22     Undefined,
  23     Red,
  24     RedMod,
  25     RedOff,
  26     Green,
  27     GreenMod,
  28     GreenOff,
  29     Blue,
  30     BlueMod,
  31     BlueOff,
  32     Alpha,
  33     AlphaMod,
  34     AlphaOff,
  35     Hue,
  36     HueMod,
  37     HueOff,
  38     Sat,
  39     SatMod,
  40     SatOff,
  41     Lum,
  42     LumMod,
  43     LumOff,
  44     Shade,
  45     Tint,
  46     Gray,
  47     Comp,
  48     Inv,
  49     Gamma,
  50     InvGamma
  51 };
  52
  53 /** Definition of a color transformation.
  54  *
  55  * This just defines how a color should be transformed (changed). The
  56  * type defines what kind of transformation should occur and the value
  57  * defines by how much.
  58  */
  59 struct DOCMODEL_DLLPUBLIC Transformation
  60 {
  61     TransformationType meType = TransformationType::Undefined;
  62
  63     sal_Int16 mnValue = 0; /// percentage value -10000 to +10000
  64
  65     bool operator==(const Transformation& rTransformation) const
  66     {
  67         return meType == rTransformation.meType && mnValue == rTransformation.mnValue;
  68     }
  69
  70     std::size_t getHash() const
  71     {
  72         std::size_t seed = 0;
  73         o3tl::hash_combine(seed, meType);
  74         o3tl::hash_combine(seed, mnValue);
  75         return seed;
  76     }
  77 };
  78
  79 } // end of namespace model
  80
  81 namespace std
  82 {
  83 template <> struct hash<model::Transformation>
  84 {
  85     std::size_t operator()(model::Transformation const& rTransformation) const
  86     {
  87         return rTransformation.getHash();
  88     }
  89 };
  90 }
  91
  92 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */