Mercurial > hg > orthanc-stone
annotate Framework/Layers/FrameRenderer.cpp @ 113:2eca030792aa wasm
using the Orthanc Framework
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 20 Sep 2017 15:32:32 +0200 |
| parents | 53025eecbc95 |
| children | e2fe9352f240 |
| rev | line source |
|---|---|
| 0 | 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 Osimis, Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 47 | 8 * modify it under the terms of the GNU Affero General Public License |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 0 | 11 * |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 47 | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 0 | 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "FrameRenderer.h" | |
| 23 | |
| 24 #include "GrayscaleFrameRenderer.h" | |
| 25 #include "ColorFrameRenderer.h" | |
| 26 | |
|
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27 #include <Core/OrthancException.h> |
| 0 | 28 |
| 29 namespace OrthancStone | |
| 30 { | |
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31 FrameRenderer::FrameRenderer(const CoordinateSystem3D& frameSlice, |
| 0 | 32 double pixelSpacingX, |
| 33 double pixelSpacingY, | |
| 34 bool isFullQuality) : | |
| 35 frameSlice_(frameSlice), | |
| 36 pixelSpacingX_(pixelSpacingX), | |
| 37 pixelSpacingY_(pixelSpacingY), | |
| 38 isFullQuality_(isFullQuality) | |
| 39 { | |
| 40 } | |
| 41 | |
| 42 | |
| 43 bool FrameRenderer::RenderLayer(CairoContext& context, | |
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44 const ViewportGeometry& view) |
| 94 | 45 { |
| 0 | 46 if (!style_.visible_) |
| 47 { | |
| 48 return true; | |
| 49 } | |
| 50 | |
| 51 if (display_.get() == NULL) | |
| 52 { | |
| 53 display_.reset(GenerateDisplay(style_)); | |
| 54 } | |
| 55 | |
| 56 assert(display_.get() != NULL); | |
| 57 | |
| 58 cairo_t *cr = context.GetObject(); | |
| 59 | |
| 60 cairo_save(cr); | |
| 61 | |
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62 cairo_matrix_t transform; |
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63 cairo_matrix_init_identity(&transform); |
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64 cairo_matrix_scale(&transform, pixelSpacingX_, pixelSpacingY_); |
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65 cairo_matrix_translate(&transform, -0.5, -0.5); |
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66 cairo_transform(cr, &transform); |
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67 |
| 0 | 68 //cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
| 69 cairo_set_source_surface(cr, display_->GetObject(), 0, 0); | |
| 70 | |
| 71 switch (style_.interpolation_) | |
| 72 { | |
| 73 case ImageInterpolation_Nearest: | |
| 74 cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST); | |
| 75 break; | |
| 76 | |
| 77 case ImageInterpolation_Linear: | |
| 78 cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_BILINEAR); | |
| 79 break; | |
| 80 | |
| 81 default: | |
| 82 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 83 } | |
| 84 | |
| 85 cairo_paint_with_alpha(cr, style_.alpha_); | |
| 86 | |
| 87 if (style_.drawGrid_) | |
| 88 { | |
| 89 context.SetSourceColor(style_.drawColor_); | |
| 90 cairo_set_line_width(cr, 0.5 / view.GetZoom()); | |
| 91 | |
| 92 for (unsigned int x = 0; x <= display_->GetWidth(); x++) | |
| 93 { | |
| 94 cairo_move_to(cr, x, 0); | |
| 95 cairo_line_to(cr, x, display_->GetHeight()); | |
| 96 } | |
| 97 | |
| 98 for (unsigned int y = 0; y <= display_->GetHeight(); y++) | |
| 99 { | |
| 100 cairo_move_to(cr, 0, y); | |
| 101 cairo_line_to(cr, display_->GetWidth(), y); | |
| 102 } | |
| 103 | |
| 104 cairo_stroke(cr); | |
| 105 } | |
| 106 | |
| 107 cairo_restore(cr); | |
| 108 | |
| 109 return true; | |
| 110 } | |
| 111 | |
| 112 | |
| 113 void FrameRenderer::SetLayerStyle(const RenderStyle& style) | |
| 114 { | |
| 115 style_ = style; | |
| 116 display_.reset(NULL); | |
| 117 } | |
| 118 | |
| 119 | |
| 120 ILayerRenderer* FrameRenderer::CreateRenderer(Orthanc::ImageAccessor* frame, | |
| 85 | 121 const Slice& frameSlice, |
| 77 | 122 bool isFullQuality) |
| 123 { | |
| 124 std::auto_ptr<Orthanc::ImageAccessor> protect(frame); | |
| 125 | |
| 126 if (frame->GetFormat() == Orthanc::PixelFormat_RGB24) | |
| 127 { | |
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128 return new ColorFrameRenderer(protect.release(), |
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129 frameSlice.GetGeometry(), |
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130 frameSlice.GetPixelSpacingX(), |
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131 frameSlice.GetPixelSpacingY(), isFullQuality); |
| 77 | 132 } |
| 133 else | |
| 134 { | |
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135 return new GrayscaleFrameRenderer(protect.release(), |
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136 frameSlice.GetConverter(), |
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137 frameSlice.GetGeometry(), |
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138 frameSlice.GetPixelSpacingX(), |
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139 frameSlice.GetPixelSpacingY(), isFullQuality); |
| 77 | 140 } |
| 141 } | |
| 0 | 142 } |