Mercurial > hg > orthanc-stone
comparison Framework/Radiography/RadiographyLayerResizeTracker.cpp @ 415:c0589c3173fd
finished reorganization
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 13 Nov 2018 10:36:53 +0100 |
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children | b85f635f1eb5 b70e9be013e4 |
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414:f7616c010056 | 415:c0589c3173fd |
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1 /** | |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2018 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 "RadiographyLayerResizeTracker.h" | |
23 | |
24 #include "RadiographySceneCommand.h" | |
25 | |
26 #include <Core/OrthancException.h> | |
27 | |
28 #include <boost/math/special_functions/round.hpp> | |
29 | |
30 | |
31 namespace OrthancStone | |
32 { | |
33 static double ComputeDistance(double x1, | |
34 double y1, | |
35 double x2, | |
36 double y2) | |
37 { | |
38 double dx = x1 - x2; | |
39 double dy = y1 - y2; | |
40 return sqrt(dx * dx + dy * dy); | |
41 } | |
42 | |
43 | |
44 class RadiographyLayerResizeTracker::UndoRedoCommand : public RadiographySceneCommand | |
45 { | |
46 private: | |
47 double sourceSpacingX_; | |
48 double sourceSpacingY_; | |
49 double sourcePanX_; | |
50 double sourcePanY_; | |
51 double targetSpacingX_; | |
52 double targetSpacingY_; | |
53 double targetPanX_; | |
54 double targetPanY_; | |
55 | |
56 protected: | |
57 virtual void UndoInternal(RadiographyLayer& layer) const | |
58 { | |
59 layer.SetPixelSpacing(sourceSpacingX_, sourceSpacingY_); | |
60 layer.SetPan(sourcePanX_, sourcePanY_); | |
61 } | |
62 | |
63 virtual void RedoInternal(RadiographyLayer& layer) const | |
64 { | |
65 layer.SetPixelSpacing(targetSpacingX_, targetSpacingY_); | |
66 layer.SetPan(targetPanX_, targetPanY_); | |
67 } | |
68 | |
69 public: | |
70 UndoRedoCommand(const RadiographyLayerResizeTracker& tracker) : | |
71 RadiographySceneCommand(tracker.accessor_), | |
72 sourceSpacingX_(tracker.originalSpacingX_), | |
73 sourceSpacingY_(tracker.originalSpacingY_), | |
74 sourcePanX_(tracker.originalPanX_), | |
75 sourcePanY_(tracker.originalPanY_), | |
76 targetSpacingX_(tracker.accessor_.GetLayer().GetPixelSpacingX()), | |
77 targetSpacingY_(tracker.accessor_.GetLayer().GetPixelSpacingY()), | |
78 targetPanX_(tracker.accessor_.GetLayer().GetPanX()), | |
79 targetPanY_(tracker.accessor_.GetLayer().GetPanY()) | |
80 { | |
81 } | |
82 }; | |
83 | |
84 | |
85 RadiographyLayerResizeTracker::RadiographyLayerResizeTracker(UndoRedoStack& undoRedoStack, | |
86 RadiographyScene& scene, | |
87 size_t layer, | |
88 double x, | |
89 double y, | |
90 Corner corner, | |
91 bool roundScaling) : | |
92 undoRedoStack_(undoRedoStack), | |
93 accessor_(scene, layer), | |
94 roundScaling_(roundScaling) | |
95 { | |
96 if (accessor_.IsValid() && | |
97 accessor_.GetLayer().IsResizeable()) | |
98 { | |
99 originalSpacingX_ = accessor_.GetLayer().GetPixelSpacingX(); | |
100 originalSpacingY_ = accessor_.GetLayer().GetPixelSpacingY(); | |
101 originalPanX_ = accessor_.GetLayer().GetPanX(); | |
102 originalPanY_ = accessor_.GetLayer().GetPanY(); | |
103 | |
104 switch (corner) | |
105 { | |
106 case Corner_TopLeft: | |
107 oppositeCorner_ = Corner_BottomRight; | |
108 break; | |
109 | |
110 case Corner_TopRight: | |
111 oppositeCorner_ = Corner_BottomLeft; | |
112 break; | |
113 | |
114 case Corner_BottomLeft: | |
115 oppositeCorner_ = Corner_TopRight; | |
116 break; | |
117 | |
118 case Corner_BottomRight: | |
119 oppositeCorner_ = Corner_TopLeft; | |
120 break; | |
121 | |
122 default: | |
123 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
124 } | |
125 | |
126 accessor_.GetLayer().GetCorner(oppositeX_, oppositeY_, oppositeCorner_); | |
127 | |
128 double d = ComputeDistance(x, y, oppositeX_, oppositeY_); | |
129 if (d >= std::numeric_limits<float>::epsilon()) | |
130 { | |
131 baseScaling_ = 1.0 / d; | |
132 } | |
133 else | |
134 { | |
135 // Avoid division by zero in extreme cases | |
136 accessor_.Invalidate(); | |
137 } | |
138 } | |
139 } | |
140 | |
141 | |
142 void RadiographyLayerResizeTracker::Render(CairoContext& context, | |
143 double zoom) | |
144 { | |
145 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
146 } | |
147 | |
148 | |
149 void RadiographyLayerResizeTracker::MouseUp() | |
150 { | |
151 if (accessor_.IsValid() && | |
152 accessor_.GetLayer().IsResizeable()) | |
153 { | |
154 undoRedoStack_.Add(new UndoRedoCommand(*this)); | |
155 } | |
156 } | |
157 | |
158 | |
159 void RadiographyLayerResizeTracker::MouseMove(int displayX, | |
160 int displayY, | |
161 double sceneX, | |
162 double sceneY) | |
163 { | |
164 static const double ROUND_SCALING = 0.1; | |
165 | |
166 if (accessor_.IsValid() && | |
167 accessor_.GetLayer().IsResizeable()) | |
168 { | |
169 double scaling = ComputeDistance(oppositeX_, oppositeY_, sceneX, sceneY) * baseScaling_; | |
170 | |
171 if (roundScaling_) | |
172 { | |
173 scaling = boost::math::round<double>((scaling / ROUND_SCALING) * ROUND_SCALING); | |
174 } | |
175 | |
176 RadiographyLayer& layer = accessor_.GetLayer(); | |
177 layer.SetPixelSpacing(scaling * originalSpacingX_, | |
178 scaling * originalSpacingY_); | |
179 | |
180 // Keep the opposite corner at a fixed location | |
181 double ox, oy; | |
182 layer.GetCorner(ox, oy, oppositeCorner_); | |
183 layer.SetPan(layer.GetPanX() + oppositeX_ - ox, | |
184 layer.GetPanY() + oppositeY_ - oy); | |
185 } | |
186 } | |
187 } |