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comparison Framework/Radiography/RadiographyLayerRotateTracker.cpp @ 414:f7616c010056

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reorganization
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 12 Nov 2018 18:00:48 +0100
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children b85f635f1eb5 b70e9be013e4
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413:18b707fb8620 414:f7616c010056
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 "RadiographyLayerRotateTracker.h"
23
24 #include "RadiographySceneCommand.h"
25
26 #include <Core/OrthancException.h>
27
28 #include <boost/math/constants/constants.hpp>
29 #include <boost/math/special_functions/round.hpp>
30
31 namespace OrthancStone
32 {
33 class RadiographyLayerRotateTracker::UndoRedoCommand : public RadiographySceneCommand
34 {
35 private:
36 double sourceAngle_;
37 double targetAngle_;
38
39 static int ToDegrees(double angle)
40 {
41 return boost::math::iround(angle * 180.0 / boost::math::constants::pi<double>());
42 }
43
44 protected:
45 virtual void UndoInternal(RadiographyLayer& layer) const
46 {
47 LOG(INFO) << "Undo - Set angle to " << ToDegrees(sourceAngle_) << " degrees";
48 layer.SetAngle(sourceAngle_);
49 }
50
51 virtual void RedoInternal(RadiographyLayer& layer) const
52 {
53 LOG(INFO) << "Redo - Set angle to " << ToDegrees(sourceAngle_) << " degrees";
54 layer.SetAngle(targetAngle_);
55 }
56
57 public:
58 UndoRedoCommand(const RadiographyLayerRotateTracker& tracker) :
59 RadiographySceneCommand(tracker.accessor_),
60 sourceAngle_(tracker.originalAngle_),
61 targetAngle_(tracker.accessor_.GetLayer().GetAngle())
62 {
63 }
64 };
65
66
67 bool RadiographyLayerRotateTracker::ComputeAngle(double& angle /* out */,
68 double sceneX,
69 double sceneY) const
70 {
71 Vector u;
72 LinearAlgebra::AssignVector(u, sceneX - centerX_, sceneY - centerY_);
73
74 double nu = boost::numeric::ublas::norm_2(u);
75
76 if (!LinearAlgebra::IsCloseToZero(nu))
77 {
78 u /= nu;
79 angle = atan2(u[1], u[0]);
80 return true;
81 }
82 else
83 {
84 return false;
85 }
86 }
87
88
89 RadiographyLayerRotateTracker::RadiographyLayerRotateTracker(UndoRedoStack& undoRedoStack,
90 RadiographyScene& scene,
91 const ViewportGeometry& view,
92 size_t layer,
93 double x,
94 double y,
95 bool roundAngles) :
96 undoRedoStack_(undoRedoStack),
97 accessor_(scene, layer),
98 roundAngles_(roundAngles)
99 {
100 if (accessor_.IsValid())
101 {
102 accessor_.GetLayer().GetCenter(centerX_, centerY_);
103 originalAngle_ = accessor_.GetLayer().GetAngle();
104
105 double sceneX, sceneY;
106 view.MapDisplayToScene(sceneX, sceneY, x, y);
107
108 if (!ComputeAngle(clickAngle_, x, y))
109 {
110 accessor_.Invalidate();
111 }
112 }
113 }
114
115
116 void RadiographyLayerRotateTracker::Render(CairoContext& context,
117 double zoom)
118 {
119 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
120 }
121
122
123 void RadiographyLayerRotateTracker::MouseUp()
124 {
125 if (accessor_.IsValid())
126 {
127 undoRedoStack_.Add(new UndoRedoCommand(*this));
128 }
129 }
130
131
132 void RadiographyLayerRotateTracker::MouseMove(int displayX,
133 int displayY,
134 double sceneX,
135 double sceneY)
136 {
137 static const double ROUND_ANGLE = 15.0 / 180.0 * boost::math::constants::pi<double>();
138
139 double angle;
140
141 if (accessor_.IsValid() &&
142 ComputeAngle(angle, sceneX, sceneY))
143 {
144 angle = angle - clickAngle_ + originalAngle_;
145
146 if (roundAngles_)
147 {
148 angle = boost::math::round<double>((angle / ROUND_ANGLE) * ROUND_ANGLE);
149 }
150
151 accessor_.GetLayer().SetAngle(angle);
152 }
153 }
154 }