Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Fonts/OpenGLTextCoordinates.cpp @ 1985:bb307007f8e2
improved interaction with rectangle probes
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 31 Oct 2022 15:01:09 +0100 |
| parents | 7053b8a0aaec |
| children | 07964689cb0b |
| rev | line source |
|---|---|
| 577 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 577 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
| 577 | 10 * as published by the Free Software Foundation, either version 3 of |
| 11 * the License, or (at your option) any later version. | |
| 12 * | |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
|
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
| 577 | 21 **/ |
| 22 | |
| 23 | |
| 24 #include "OpenGLTextCoordinates.h" | |
| 25 | |
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26 #include <OrthancException.h> |
| 577 | 27 |
| 28 namespace OrthancStone | |
| 29 { | |
| 30 namespace OpenGL | |
| 31 { | |
| 32 void OpenGLTextCoordinates::Visit(uint32_t unicode, | |
| 33 int x, | |
| 34 int y, | |
| 35 unsigned int width, | |
| 36 unsigned int height, | |
| 37 const Orthanc::IDynamicObject* payload) | |
| 38 { | |
| 39 // Rendering coordinates | |
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40 float rx1 = static_cast<float>(x - box_.GetLeft()); |
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41 float ry1 = static_cast<float>(y - box_.GetTop()); |
| 577 | 42 float rx2 = rx1 + static_cast<float>(width); |
| 43 float ry2 = ry1 + static_cast<float>(height); | |
| 44 | |
| 45 // Texture coordinates | |
| 46 assert(payload != NULL); | |
| 47 const GlyphTextureAlphabet::TextureLocation& location = | |
| 48 *dynamic_cast<const GlyphTextureAlphabet::TextureLocation*>(payload); | |
| 49 | |
| 50 float tx1 = location.GetX() / textureWidth_; | |
| 51 float ty1 = location.GetY() / textureHeight_; | |
| 52 float tx2 = tx1 + (static_cast<float>(width) / textureWidth_); | |
| 53 float ty2 = ty1 + (static_cast<float>(height) / textureHeight_); | |
| 54 | |
| 55 const float rpos[6][2] = { | |
| 56 { rx1, ry1 }, | |
| 57 { rx1, ry2 }, | |
| 58 { rx2, ry1 }, | |
| 59 { rx2, ry1 }, | |
| 60 { rx1, ry2 }, | |
| 61 { rx2, ry2 } | |
| 62 }; | |
| 63 | |
| 64 const float tpos[6][2] = { | |
| 65 { tx1, ty1 }, | |
| 66 { tx1, ty2 }, | |
| 67 { tx2, ty1 }, | |
| 68 { tx2, ty1 }, | |
| 69 { tx1, ty2 }, | |
| 70 { tx2, ty2 } | |
| 71 }; | |
| 72 | |
| 73 for (unsigned int i = 0; i < 6; i++) | |
| 74 { | |
| 75 renderingCoords_.push_back(rpos[i][0]); | |
| 76 renderingCoords_.push_back(rpos[i][1]); | |
| 77 textureCoords_.push_back(tpos[i][0]); | |
| 78 textureCoords_.push_back(tpos[i][1]); | |
| 79 } | |
| 80 } | |
| 81 | |
| 82 | |
| 83 OpenGLTextCoordinates::OpenGLTextCoordinates(const GlyphTextureAlphabet& alphabet, | |
| 84 const std::string& utf8) : | |
| 85 box_(alphabet.GetAlphabet(), utf8), | |
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86 textureWidth_(static_cast<float>(alphabet.GetTextureWidth())), |
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parents:
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diff
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87 textureHeight_(static_cast<float>(alphabet.GetTextureHeight())) |
| 577 | 88 { |
| 89 if (textureWidth_ <= 0 || | |
| 90 textureHeight_ <= 0) | |
| 91 { | |
| 92 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 93 } | |
| 94 | |
| 95 width_ = static_cast<float>(box_.GetWidth()); | |
| 96 height_ = static_cast<float>(box_.GetHeight()); | |
| 97 | |
| 98 // Each character is made of two 2D triangles (= 2 * 3 * 2 = 12) | |
| 99 renderingCoords_.reserve(box_.GetCharactersCount() * 12); | |
| 100 textureCoords_.reserve(box_.GetCharactersCount() * 12); | |
| 101 | |
| 102 alphabet.GetAlphabet().Apply(*this, utf8); | |
| 103 } | |
| 104 | |
| 105 | |
| 106 const std::vector<float>& OpenGLTextCoordinates::GetRenderingCoords() const | |
| 107 { | |
| 108 assert(renderingCoords_.size() == textureCoords_.size()); | |
| 109 return renderingCoords_; | |
| 110 } | |
| 111 | |
| 112 | |
| 113 const std::vector<float>& OpenGLTextCoordinates::GetTextureCoords() const | |
| 114 { | |
| 115 assert(renderingCoords_.size() == textureCoords_.size()); | |
| 116 return textureCoords_; | |
| 117 } | |
| 118 } | |
| 119 } |