Mercurial > hg > orthanc-stone
annotate Framework/Layers/FrameRenderer.cpp @ 74:6546dbcc0a7d wasm
missing file
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 24 May 2017 12:08:08 +0200 |
parents | 298f375dcb68 |
children | f5f54ed8d307 |
rev | line source |
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0 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
40
7207a407bcd8
shared copyright with osimis
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
32
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changeset
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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 | |
16 | 27 #include "../../Resources/Orthanc/Core/OrthancException.h" |
0 | 28 |
29 namespace OrthancStone | |
30 { | |
31 static bool ComputePixelTransform(cairo_matrix_t& target, | |
32 const SliceGeometry& viewportSlice, | |
33 const SliceGeometry& frameSlice, | |
34 double pixelSpacingX, | |
35 double pixelSpacingY) | |
36 { | |
37 bool isOpposite; | |
66 | 38 if (!GeometryToolbox::IsParallelOrOpposite(isOpposite, |
39 viewportSlice.GetNormal(), | |
40 frameSlice.GetNormal())) | |
0 | 41 { |
42 return false; | |
43 } | |
44 else | |
45 { | |
46 double x0, y0, x1, y1, x2, y2; | |
47 viewportSlice.ProjectPoint(x0, y0, frameSlice.GetOrigin() | |
48 - 0.5 * pixelSpacingX * frameSlice.GetAxisX() | |
49 - 0.5 * pixelSpacingY * frameSlice.GetAxisY()); | |
50 viewportSlice.ProjectPoint(x1, y1, frameSlice.GetOrigin() | |
51 + 0.5 * pixelSpacingX * frameSlice.GetAxisX() | |
52 - 0.5 * pixelSpacingY * frameSlice.GetAxisY()); | |
53 viewportSlice.ProjectPoint(x2, y2, frameSlice.GetOrigin() | |
54 - 0.5 * pixelSpacingX * frameSlice.GetAxisX() | |
55 + 0.5 * pixelSpacingY * frameSlice.GetAxisY()); | |
56 | |
57 /** | |
58 * Now we solve the system of linear equations Ax + b = x', given: | |
59 * A [0 ; 0] + b = [x0 ; y0] | |
60 * A [1 ; 0] + b = [x1 ; y1] | |
61 * A [0 ; 1] + b = [x2 ; y2] | |
62 * <=> | |
63 * b = [x0 ; y0] | |
64 * A [1 ; 0] = [x1 ; y1] - b = [x1 - x0 ; y1 - y0] | |
65 * A [0 ; 1] = [x2 ; y2] - b = [x2 - x0 ; y2 - y0] | |
66 * <=> | |
67 * b = [x0 ; y0] | |
68 * [a11 ; a21] = [x1 - x0 ; y1 - y0] | |
69 * [a12 ; a22] = [x2 - x0 ; y2 - y0] | |
70 **/ | |
71 | |
72 cairo_matrix_init(&target, x1 - x0, y1 - y0, x2 - x0, y2 - y0, x0, y0); | |
73 | |
74 return true; | |
75 } | |
76 } | |
77 | |
78 | |
79 FrameRenderer::FrameRenderer(const SliceGeometry& viewportSlice, | |
80 const SliceGeometry& frameSlice, | |
81 double pixelSpacingX, | |
82 double pixelSpacingY, | |
83 bool isFullQuality) : | |
84 viewportSlice_(viewportSlice), | |
85 frameSlice_(frameSlice), | |
86 pixelSpacingX_(pixelSpacingX), | |
87 pixelSpacingY_(pixelSpacingY), | |
88 isFullQuality_(isFullQuality) | |
89 { | |
90 } | |
91 | |
92 | |
93 bool FrameRenderer::ComputeFrameExtent(double& x1, | |
94 double& y1, | |
95 double& x2, | |
96 double& y2, | |
97 const SliceGeometry& viewportSlice, | |
98 const SliceGeometry& frameSlice, | |
99 unsigned int frameWidth, | |
100 unsigned int frameHeight, | |
101 double pixelSpacingX, | |
102 double pixelSpacingY) | |
103 { | |
104 bool isOpposite; | |
105 if (!GeometryToolbox::IsParallelOrOpposite(isOpposite, viewportSlice.GetNormal(), frameSlice.GetNormal())) | |
106 { | |
107 return false; | |
108 } | |
109 else | |
110 { | |
111 cairo_matrix_t transform; | |
112 if (!ComputePixelTransform(transform, viewportSlice, frameSlice, pixelSpacingX, pixelSpacingY)) | |
113 { | |
114 return true; | |
115 } | |
116 | |
117 x1 = 0; | |
118 y1 = 0; | |
119 cairo_matrix_transform_point(&transform, &x1, &y1); | |
120 | |
121 x2 = frameWidth; | |
122 y2 = frameHeight; | |
123 cairo_matrix_transform_point(&transform, &x2, &y2); | |
124 | |
125 if (x1 > x2) | |
126 { | |
127 std::swap(x1, x2); | |
128 } | |
129 | |
130 if (y1 > y2) | |
131 { | |
132 std::swap(y1, y2); | |
133 } | |
134 | |
135 return true; | |
136 } | |
137 } | |
138 | |
139 | |
140 bool FrameRenderer::RenderLayer(CairoContext& context, | |
141 const ViewportGeometry& view) | |
142 { | |
143 if (!style_.visible_) | |
144 { | |
145 return true; | |
146 } | |
147 | |
148 if (display_.get() == NULL) | |
149 { | |
66 | 150 if (!ComputePixelTransform(transform_, viewportSlice_, frameSlice_, |
151 pixelSpacingX_, pixelSpacingY_)) | |
0 | 152 { |
153 return true; | |
154 } | |
155 | |
156 display_.reset(GenerateDisplay(style_)); | |
157 } | |
158 | |
159 assert(display_.get() != NULL); | |
160 | |
161 cairo_t *cr = context.GetObject(); | |
162 | |
163 cairo_save(cr); | |
164 | |
165 cairo_transform(cr, &transform_); | |
166 //cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | |
167 cairo_set_source_surface(cr, display_->GetObject(), 0, 0); | |
168 | |
169 switch (style_.interpolation_) | |
170 { | |
171 case ImageInterpolation_Nearest: | |
172 cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST); | |
173 break; | |
174 | |
175 case ImageInterpolation_Linear: | |
176 cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_BILINEAR); | |
177 break; | |
178 | |
179 default: | |
180 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
181 } | |
182 | |
183 cairo_paint_with_alpha(cr, style_.alpha_); | |
184 | |
185 if (style_.drawGrid_) | |
186 { | |
187 context.SetSourceColor(style_.drawColor_); | |
188 cairo_set_line_width(cr, 0.5 / view.GetZoom()); | |
189 | |
190 for (unsigned int x = 0; x <= display_->GetWidth(); x++) | |
191 { | |
192 cairo_move_to(cr, x, 0); | |
193 cairo_line_to(cr, x, display_->GetHeight()); | |
194 } | |
195 | |
196 for (unsigned int y = 0; y <= display_->GetHeight(); y++) | |
197 { | |
198 cairo_move_to(cr, 0, y); | |
199 cairo_line_to(cr, display_->GetWidth(), y); | |
200 } | |
201 | |
202 cairo_stroke(cr); | |
203 } | |
204 | |
205 cairo_restore(cr); | |
206 | |
207 return true; | |
208 } | |
209 | |
210 | |
211 void FrameRenderer::SetLayerStyle(const RenderStyle& style) | |
212 { | |
213 style_ = style; | |
214 display_.reset(NULL); | |
215 } | |
216 | |
217 | |
218 ILayerRenderer* FrameRenderer::CreateRenderer(Orthanc::ImageAccessor* frame, | |
219 const SliceGeometry& viewportSlice, | |
220 const SliceGeometry& frameSlice, | |
32 | 221 const OrthancPlugins::IDicomDataset& dicom, |
0 | 222 double pixelSpacingX, |
223 double pixelSpacingY, | |
224 bool isFullQuality) | |
225 { | |
226 std::auto_ptr<Orthanc::ImageAccessor> protect(frame); | |
227 | |
228 if (frame->GetFormat() == Orthanc::PixelFormat_RGB24) | |
229 { | |
230 return new ColorFrameRenderer(protect.release(), viewportSlice, frameSlice, | |
231 pixelSpacingX, pixelSpacingY, isFullQuality); | |
232 } | |
233 else | |
234 { | |
235 DicomFrameConverter converter; | |
236 converter.ReadParameters(dicom); | |
237 return new GrayscaleFrameRenderer(protect.release(), converter, viewportSlice, frameSlice, | |
238 pixelSpacingX, pixelSpacingY, isFullQuality); | |
239 } | |
240 } | |
241 } |