Mercurial > hg > orthanc-stone
annotate Framework/Layers/FrameRenderer.cpp @ 134:4cff7b1ed31d
upgrade to year 2018
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 02 Jan 2018 09:51:36 +0100 |
parents | 28956ed68280 |
children | fccffbf99ba1 |
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 | |
134
4cff7b1ed31d
upgrade to year 2018
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
47
diff
changeset
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5 * Copyright (C) 2017-2018 Osimis S.A., 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; | |
38 if (!GeometryToolbox::IsParallelOrOpposite(isOpposite, viewportSlice.GetNormal(), frameSlice.GetNormal())) | |
39 { | |
40 return false; | |
41 } | |
42 else | |
43 { | |
44 double x0, y0, x1, y1, x2, y2; | |
45 viewportSlice.ProjectPoint(x0, y0, frameSlice.GetOrigin() | |
46 - 0.5 * pixelSpacingX * frameSlice.GetAxisX() | |
47 - 0.5 * pixelSpacingY * frameSlice.GetAxisY()); | |
48 viewportSlice.ProjectPoint(x1, y1, frameSlice.GetOrigin() | |
49 + 0.5 * pixelSpacingX * frameSlice.GetAxisX() | |
50 - 0.5 * pixelSpacingY * frameSlice.GetAxisY()); | |
51 viewportSlice.ProjectPoint(x2, y2, frameSlice.GetOrigin() | |
52 - 0.5 * pixelSpacingX * frameSlice.GetAxisX() | |
53 + 0.5 * pixelSpacingY * frameSlice.GetAxisY()); | |
54 | |
55 /** | |
56 * Now we solve the system of linear equations Ax + b = x', given: | |
57 * A [0 ; 0] + b = [x0 ; y0] | |
58 * A [1 ; 0] + b = [x1 ; y1] | |
59 * A [0 ; 1] + b = [x2 ; y2] | |
60 * <=> | |
61 * b = [x0 ; y0] | |
62 * A [1 ; 0] = [x1 ; y1] - b = [x1 - x0 ; y1 - y0] | |
63 * A [0 ; 1] = [x2 ; y2] - b = [x2 - x0 ; y2 - y0] | |
64 * <=> | |
65 * b = [x0 ; y0] | |
66 * [a11 ; a21] = [x1 - x0 ; y1 - y0] | |
67 * [a12 ; a22] = [x2 - x0 ; y2 - y0] | |
68 **/ | |
69 | |
70 cairo_matrix_init(&target, x1 - x0, y1 - y0, x2 - x0, y2 - y0, x0, y0); | |
71 | |
72 return true; | |
73 } | |
74 } | |
75 | |
76 | |
77 FrameRenderer::FrameRenderer(const SliceGeometry& viewportSlice, | |
78 const SliceGeometry& frameSlice, | |
79 double pixelSpacingX, | |
80 double pixelSpacingY, | |
81 bool isFullQuality) : | |
82 viewportSlice_(viewportSlice), | |
83 frameSlice_(frameSlice), | |
84 pixelSpacingX_(pixelSpacingX), | |
85 pixelSpacingY_(pixelSpacingY), | |
86 isFullQuality_(isFullQuality) | |
87 { | |
88 } | |
89 | |
90 | |
91 bool FrameRenderer::ComputeFrameExtent(double& x1, | |
92 double& y1, | |
93 double& x2, | |
94 double& y2, | |
95 const SliceGeometry& viewportSlice, | |
96 const SliceGeometry& frameSlice, | |
97 unsigned int frameWidth, | |
98 unsigned int frameHeight, | |
99 double pixelSpacingX, | |
100 double pixelSpacingY) | |
101 { | |
102 bool isOpposite; | |
103 if (!GeometryToolbox::IsParallelOrOpposite(isOpposite, viewportSlice.GetNormal(), frameSlice.GetNormal())) | |
104 { | |
105 return false; | |
106 } | |
107 else | |
108 { | |
109 cairo_matrix_t transform; | |
110 if (!ComputePixelTransform(transform, viewportSlice, frameSlice, pixelSpacingX, pixelSpacingY)) | |
111 { | |
112 return true; | |
113 } | |
114 | |
115 x1 = 0; | |
116 y1 = 0; | |
117 cairo_matrix_transform_point(&transform, &x1, &y1); | |
118 | |
119 x2 = frameWidth; | |
120 y2 = frameHeight; | |
121 cairo_matrix_transform_point(&transform, &x2, &y2); | |
122 | |
123 if (x1 > x2) | |
124 { | |
125 std::swap(x1, x2); | |
126 } | |
127 | |
128 if (y1 > y2) | |
129 { | |
130 std::swap(y1, y2); | |
131 } | |
132 | |
133 return true; | |
134 } | |
135 } | |
136 | |
137 | |
138 bool FrameRenderer::RenderLayer(CairoContext& context, | |
139 const ViewportGeometry& view) | |
140 { | |
141 if (!style_.visible_) | |
142 { | |
143 return true; | |
144 } | |
145 | |
146 if (display_.get() == NULL) | |
147 { | |
148 if (!ComputePixelTransform(transform_, viewportSlice_, frameSlice_, pixelSpacingX_, pixelSpacingY_)) | |
149 { | |
150 return true; | |
151 } | |
152 | |
153 display_.reset(GenerateDisplay(style_)); | |
154 } | |
155 | |
156 assert(display_.get() != NULL); | |
157 | |
158 cairo_t *cr = context.GetObject(); | |
159 | |
160 cairo_save(cr); | |
161 | |
162 cairo_transform(cr, &transform_); | |
163 //cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | |
164 cairo_set_source_surface(cr, display_->GetObject(), 0, 0); | |
165 | |
166 switch (style_.interpolation_) | |
167 { | |
168 case ImageInterpolation_Nearest: | |
169 cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST); | |
170 break; | |
171 | |
172 case ImageInterpolation_Linear: | |
173 cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_BILINEAR); | |
174 break; | |
175 | |
176 default: | |
177 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
178 } | |
179 | |
180 cairo_paint_with_alpha(cr, style_.alpha_); | |
181 | |
182 if (style_.drawGrid_) | |
183 { | |
184 context.SetSourceColor(style_.drawColor_); | |
185 cairo_set_line_width(cr, 0.5 / view.GetZoom()); | |
186 | |
187 for (unsigned int x = 0; x <= display_->GetWidth(); x++) | |
188 { | |
189 cairo_move_to(cr, x, 0); | |
190 cairo_line_to(cr, x, display_->GetHeight()); | |
191 } | |
192 | |
193 for (unsigned int y = 0; y <= display_->GetHeight(); y++) | |
194 { | |
195 cairo_move_to(cr, 0, y); | |
196 cairo_line_to(cr, display_->GetWidth(), y); | |
197 } | |
198 | |
199 cairo_stroke(cr); | |
200 } | |
201 | |
202 cairo_restore(cr); | |
203 | |
204 return true; | |
205 } | |
206 | |
207 | |
208 void FrameRenderer::SetLayerStyle(const RenderStyle& style) | |
209 { | |
210 style_ = style; | |
211 display_.reset(NULL); | |
212 } | |
213 | |
214 | |
215 ILayerRenderer* FrameRenderer::CreateRenderer(Orthanc::ImageAccessor* frame, | |
216 const SliceGeometry& viewportSlice, | |
217 const SliceGeometry& frameSlice, | |
32 | 218 const OrthancPlugins::IDicomDataset& dicom, |
0 | 219 double pixelSpacingX, |
220 double pixelSpacingY, | |
221 bool isFullQuality) | |
222 { | |
223 std::auto_ptr<Orthanc::ImageAccessor> protect(frame); | |
224 | |
225 if (frame->GetFormat() == Orthanc::PixelFormat_RGB24) | |
226 { | |
227 return new ColorFrameRenderer(protect.release(), viewportSlice, frameSlice, | |
228 pixelSpacingX, pixelSpacingY, isFullQuality); | |
229 } | |
230 else | |
231 { | |
232 DicomFrameConverter converter; | |
233 converter.ReadParameters(dicom); | |
234 return new GrayscaleFrameRenderer(protect.release(), converter, viewportSlice, frameSlice, | |
235 pixelSpacingX, pixelSpacingY, isFullQuality); | |
236 } | |
237 } | |
238 } |