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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #pragma once
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23
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24 #include "IOpenGLContext.h"
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25 #include "OpenGLProgram.h"
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26 #include "OpenGLTexture.h"
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27
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28 #include "../Fonts/GlyphTextureAlphabet.h"
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29 #include "../Scene2D/TextSceneLayer.h"
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30 #include "../Toolbox/AffineTransform2D.h"
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31
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32 namespace OrthancStone
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33 {
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34 namespace OpenGL
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35 {
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36 class TextOpenGLProgram : public boost::noncopyable
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37 {
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38 public:
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39 class Data : public boost::noncopyable
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40 {
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41 private:
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42 IOpenGLContext& context_;
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43 size_t coordinatesCount_;
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44 GLuint buffers_[2];
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45 float red_;
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46 float green_;
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47 float blue_;
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48 double x_;
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49 double y_;
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50 double border_;
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51 unsigned int textWidth_;
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52 unsigned int textHeight_;
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53 BitmapAnchor anchor_;
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54
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55 public:
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56 Data(IOpenGLContext& context,
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57 const GlyphTextureAlphabet& alphabet,
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58 const TextSceneLayer& layer);
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59
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60 ~Data();
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61
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62 bool IsEmpty() const
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63 {
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64 return coordinatesCount_ == 0;
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65 }
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66
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67 size_t GetCoordinatesCount() const
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68 {
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69 return coordinatesCount_;
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70 }
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71
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72 GLuint GetSceneLocationsBuffer() const;
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73
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74 GLuint GetTextureLocationsBuffer() const;
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75
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76 float GetRed() const
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77 {
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78 return red_;
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79 }
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80
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81 float GetGreen() const
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82 {
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83 return green_;
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84 }
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85
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86 float GetBlue() const
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87 {
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88 return blue_;
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89 }
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90
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91 double GetX() const
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92 {
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93 return x_;
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94 }
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95
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96 double GetY() const
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97 {
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98 return y_;
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99 }
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100
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101 double GetBorder() const
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102 {
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103 return border_;
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104 }
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105
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106 unsigned int GetTextWidth() const
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107 {
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108 return textWidth_;
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109 }
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110
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111 unsigned int GetTextHeight() const
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112 {
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113 return textHeight_;
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114 }
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115
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116 BitmapAnchor GetAnchor() const
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117 {
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118 return anchor_;
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119 }
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120 };
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121
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122 private:
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123 static const unsigned int COMPONENTS = 2;
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124
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125 IOpenGLContext& context_;
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126 std::auto_ptr<OpenGLProgram> program_;
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127 GLint positionLocation_;
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128 GLint textureLocation_;
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129
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130 public:
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131 TextOpenGLProgram(IOpenGLContext& context);
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132
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133 void Apply(OpenGLTexture& fontTexture,
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134 const Data& data,
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135 const AffineTransform2D& transform);
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136 };
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137 }
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138 }
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