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comparison Samples/SampleInteractor.h @ 0:351ab0da0150

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 14 Oct 2016 15:34:11 +0200
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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 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #pragma once
34
35 #include "SampleApplicationBase.h"
36
37 #include "../Framework/Widgets/LayeredSceneWidget.h"
38 #include "../Framework/Widgets/IWorldSceneInteractor.h"
39 #include "../Framework/Toolbox/ParallelSlicesCursor.h"
40
41 namespace OrthancStone
42 {
43 namespace Samples
44 {
45 /**
46 * This is a basic mouse interactor for sample applications. It
47 * contains a set of parallel slices in the 3D space. The mouse
48 * wheel events make the widget change the slice that is
49 * displayed.
50 **/
51 class SampleInteractor : public IWorldSceneInteractor
52 {
53 private:
54 ParallelSlicesCursor cursor_;
55
56 public:
57 SampleInteractor(VolumeImage& volume,
58 VolumeProjection projection,
59 bool reverse)
60 {
61 std::auto_ptr<ParallelSlices> slices(volume.GetGeometry(projection, reverse));
62 cursor_.SetGeometry(*slices);
63 }
64
65 SampleInteractor(ISeriesLoader& series,
66 bool reverse)
67 {
68 if (reverse)
69 {
70 std::auto_ptr<ParallelSlices> slices(series.GetGeometry().Reverse());
71 cursor_.SetGeometry(*slices);
72 }
73 else
74 {
75 cursor_.SetGeometry(series.GetGeometry());
76 }
77 }
78
79 SampleInteractor(const ParallelSlices& slices)
80 {
81 cursor_.SetGeometry(slices);
82 }
83
84 ParallelSlicesCursor& GetCursor()
85 {
86 return cursor_;
87 }
88
89 void AddWidget(LayeredSceneWidget& widget)
90 {
91 widget.SetInteractor(*this);
92 widget.SetSlice(cursor_.GetCurrentSlice());
93 }
94
95 virtual IWorldSceneMouseTracker* CreateMouseTracker(WorldSceneWidget& widget,
96 const SliceGeometry& slice,
97 const ViewportGeometry& view,
98 MouseButton button,
99 double x,
100 double y,
101 IStatusBar* statusBar)
102 {
103 return NULL;
104 }
105
106 virtual void MouseOver(CairoContext& context,
107 WorldSceneWidget& widget,
108 const SliceGeometry& slice,
109 const ViewportGeometry& view,
110 double x,
111 double y,
112 IStatusBar* statusBar)
113 {
114 }
115
116 virtual void MouseWheel(WorldSceneWidget& widget,
117 MouseWheelDirection direction,
118 KeyboardModifiers modifiers,
119 IStatusBar* statusBar)
120 {
121 if (cursor_.ApplyWheelEvent(direction, modifiers))
122 {
123 dynamic_cast<LayeredSceneWidget&>(widget).SetSlice(cursor_.GetCurrentSlice());
124 }
125 }
126
127 virtual void KeyPressed(WorldSceneWidget& widget,
128 char key,
129 KeyboardModifiers modifiers,
130 IStatusBar* statusBar)
131 {
132 }
133
134 void LookupSliceContainingPoint(LayeredSceneWidget& widget,
135 const Vector& p)
136 {
137 if (cursor_.LookupSliceContainingPoint(p))
138 {
139 widget.SetSlice(cursor_.GetCurrentSlice());
140 }
141 }
142 };
143 }
144 }