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comparison Framework/Deprecated/Radiography/RadiographyWidget.cpp @ 1398:c5403d52078c

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moved Radiography into Deprecated
author Alain Mazy <alain@mazy.be>
date Wed, 29 Apr 2020 20:43:09 +0200
parents Framework/Radiography/RadiographyWidget.cpp@7ec8fea061b9
children 30deba7bc8e2
comparison
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1397:1c2d065ba372 1398:c5403d52078c
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
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.
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
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
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21
22 #include "RadiographyWidget.h"
23
24 #include <Core/OrthancException.h>
25 #include <Core/Images/Image.h>
26 #include <Core/Images/ImageProcessing.h>
27
28 #include "RadiographyMaskLayer.h"
29
30 namespace OrthancStone
31 {
32
33 bool RadiographyWidget::IsInvertedInternal() const
34 {
35 // MONOCHROME1 images must be inverted and the user can invert the
36 // image, too -> XOR the two
37 return (scene_->GetPreferredPhotomotricDisplayMode() ==
38 RadiographyPhotometricDisplayMode_Monochrome1) ^ invert_;
39 }
40
41 void RadiographyWidget::RenderBackground(
42 Orthanc::ImageAccessor& image, float minValue, float maxValue)
43 {
44 // wipe background before rendering
45 float backgroundValue = minValue;
46
47 switch (scene_->GetPreferredPhotomotricDisplayMode())
48 {
49 case RadiographyPhotometricDisplayMode_Monochrome1:
50 case RadiographyPhotometricDisplayMode_Default:
51 if (IsInvertedInternal())
52 backgroundValue = maxValue;
53 else
54 backgroundValue = minValue;
55 break;
56 case RadiographyPhotometricDisplayMode_Monochrome2:
57 if (IsInvertedInternal())
58 backgroundValue = minValue;
59 else
60 backgroundValue = maxValue;
61 break;
62 default:
63 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
64 }
65
66 Orthanc::ImageProcessing::Set(image, static_cast<int64_t>(backgroundValue));
67 }
68
69 bool RadiographyWidget::RenderInternal(unsigned int width,
70 unsigned int height,
71 ImageInterpolation interpolation)
72 {
73 if (floatBuffer_.get() == NULL ||
74 floatBuffer_->GetWidth() != width ||
75 floatBuffer_->GetHeight() != height)
76 {
77 floatBuffer_.reset(new Orthanc::Image(
78 Orthanc::PixelFormat_Float32, width, height, false));
79
80 if (floatBuffer_.get() == NULL)
81 {
82 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory, "RadiographyWidget::RenderInternal: unable to allocate float buffer");
83 }
84 }
85
86 if (cairoBuffer_.get() == NULL ||
87 cairoBuffer_->GetWidth() != width ||
88 cairoBuffer_->GetHeight() != height)
89 {
90 cairoBuffer_.reset(new CairoSurface(width, height, false /* no alpha */));
91
92 if (cairoBuffer_.get() == NULL)
93 {
94 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory, "RadiographyWidget::RenderInternal: unable to allocate cairo buffer");
95 }
96 }
97
98 RenderBackground(*floatBuffer_, 0.0, 65535.0);
99
100 scene_->Render(*floatBuffer_, GetView().GetMatrix(), interpolation, true);
101
102 // Conversion from Float32 to BGRA32 (cairo). Very similar to
103 // GrayscaleFrameRenderer => TODO MERGE?
104 Orthanc::ImageAccessor target;
105 cairoBuffer_->GetWriteableAccessor(target);
106
107 bool invert = IsInvertedInternal();
108
109 for (unsigned int y = 0; y < height; y++)
110 {
111 const float* p = reinterpret_cast<const float*>(floatBuffer_->GetConstRow(y));
112 uint8_t* q = reinterpret_cast<uint8_t*>(target.GetRow(y));
113
114 for (unsigned int x = 0; x < width; x++, p++, q += 4)
115 {
116 uint8_t v = 0;
117 if (*p >= 65535.0)
118 {
119 v = 255;
120 }
121 else if (*p <= 0.0)
122 {
123 v = 0;
124 }
125 else
126 {
127 v = static_cast<uint8_t>(*p / 256.0);
128 }
129
130 if (invert)
131 {
132 v = 255 - v;
133 }
134
135 q[0] = v;
136 q[1] = v;
137 q[2] = v;
138 q[3] = 255;
139 }
140 }
141
142 return true;
143 }
144
145
146 bool RadiographyWidget::RenderScene(CairoContext& context,
147 const Deprecated::ViewportGeometry& view)
148 {
149 cairo_t* cr = context.GetObject();
150
151 if (RenderInternal(context.GetWidth(), context.GetHeight(), interpolation_))
152 {
153 // https://www.cairographics.org/FAQ/#paint_from_a_surface
154 cairo_save(cr);
155 cairo_identity_matrix(cr);
156 cairo_set_source_surface(cr, cairoBuffer_->GetObject(), 0, 0);
157 cairo_paint(cr);
158 cairo_restore(cr);
159 }
160 else
161 {
162 // https://www.cairographics.org/FAQ/#clear_a_surface
163 context.SetSourceColor(0, 0, 0);
164 cairo_paint(cr);
165 }
166
167 if (hasSelection_)
168 {
169 scene_->DrawBorder(
170 context, static_cast<unsigned int>(selectedLayer_), view.GetZoom());
171 }
172
173 return true;
174 }
175
176
177 RadiographyWidget::RadiographyWidget(boost::shared_ptr<RadiographyScene> scene,
178 const std::string& name) :
179 WorldSceneWidget(name),
180 invert_(false),
181 interpolation_(ImageInterpolation_Nearest),
182 hasSelection_(false),
183 selectedLayer_(0) // Dummy initialization
184 {
185 SetScene(scene);
186 }
187
188
189 void RadiographyWidget::Select(size_t layer)
190 {
191 hasSelection_ = true;
192 selectedLayer_ = layer;
193
194 NotifyContentChanged();
195 BroadcastMessage(SelectionChangedMessage(*this));
196 }
197
198 void RadiographyWidget::Unselect()
199 {
200 hasSelection_ = false;
201
202 NotifyContentChanged();
203 BroadcastMessage(SelectionChangedMessage(*this));
204 }
205
206 bool RadiographyWidget::LookupSelectedLayer(size_t& layer) const
207 {
208 if (hasSelection_)
209 {
210 layer = selectedLayer_;
211 return true;
212 }
213 else
214 {
215 return false;
216 }
217 }
218
219
220 void RadiographyWidget::OnGeometryChanged(const RadiographyScene::GeometryChangedMessage& message)
221 {
222 // LOG(INFO) << "Scene geometry has changed";
223 FitContent();
224 }
225
226
227 void RadiographyWidget::OnContentChanged(const RadiographyScene::ContentChangedMessage& message)
228 {
229 // LOG(INFO) << "Scene content has changed";
230 NotifyContentChanged();
231 }
232
233 void RadiographyWidget::OnLayerRemoved(const RadiographyScene::LayerRemovedMessage& message)
234 {
235 size_t removedLayerIndex = message.GetLayerIndex();
236 if (hasSelection_ && selectedLayer_ == removedLayerIndex)
237 {
238 Unselect();
239 }
240 NotifyContentChanged();
241 }
242
243 void RadiographyWidget::SetInvert(bool invert)
244 {
245 if (invert_ != invert)
246 {
247 invert_ = invert;
248 NotifyContentChanged();
249 }
250 }
251
252
253 void RadiographyWidget::SwitchInvert()
254 {
255 invert_ = !invert_;
256 NotifyContentChanged();
257 }
258
259
260 void RadiographyWidget::SetInterpolation(ImageInterpolation interpolation)
261 {
262 if (interpolation_ != interpolation)
263 {
264 interpolation_ = interpolation;
265 NotifyContentChanged();
266 }
267 }
268
269 void RadiographyWidget::SetScene(boost::shared_ptr<RadiographyScene> scene)
270 {
271 scene_ = scene;
272
273 Register<RadiographyScene::GeometryChangedMessage>(*scene_, &RadiographyWidget::OnGeometryChanged);
274 Register<RadiographyScene::ContentChangedMessage>(*scene_, &RadiographyWidget::OnContentChanged);
275 Register<RadiographyScene::LayerRemovedMessage>(*scene_, &RadiographyWidget::OnLayerRemoved);
276
277 Unselect();
278
279 NotifyContentChanged();
280
281 // force redraw
282 FitContent();
283 }
284 }