Mercurial > hg > orthanc-stone
comparison Framework/Widgets/WorldSceneWidget.h @ 0:351ab0da0150
initial commit
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 14 Oct 2016 15:34:11 +0200 |
parents | |
children | 7207a407bcd8 |
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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 "CairoWidget.h" | |
36 #include "IWorldSceneInteractor.h" | |
37 | |
38 #include "../Toolbox/SharedValue.h" | |
39 #include "../Toolbox/ViewportGeometry.h" | |
40 | |
41 namespace OrthancStone | |
42 { | |
43 class WorldSceneWidget : public CairoWidget | |
44 { | |
45 public: | |
46 // Must be thread-safe | |
47 class IWorldObserver : public boost::noncopyable | |
48 { | |
49 public: | |
50 virtual ~IWorldObserver() | |
51 { | |
52 } | |
53 | |
54 virtual void NotifySizeChange(const WorldSceneWidget& source, | |
55 ViewportGeometry& view) = 0; // Can be tuned by the observer | |
56 | |
57 virtual void NotifyViewChange(const WorldSceneWidget& source, | |
58 const ViewportGeometry& view) = 0; | |
59 }; | |
60 | |
61 private: | |
62 struct ViewChangeFunctor; | |
63 struct SizeChangeFunctor; | |
64 | |
65 class SceneMouseTracker; | |
66 class PanMouseTracker; | |
67 class ZoomMouseTracker; | |
68 | |
69 typedef ObserversRegistry<WorldSceneWidget, IWorldObserver> Observers; | |
70 | |
71 SharedValue<ViewportGeometry> view_; | |
72 Observers observers_; | |
73 IWorldSceneInteractor* interactor_; | |
74 | |
75 | |
76 protected: | |
77 virtual bool RenderScene(CairoContext& context, | |
78 const ViewportGeometry& view) = 0; | |
79 | |
80 virtual bool HasUpdateThread() const | |
81 { | |
82 return false; | |
83 } | |
84 | |
85 virtual void UpdateStep(); | |
86 | |
87 virtual bool RenderCairo(CairoContext& context); | |
88 | |
89 virtual void RenderMouseOverCairo(CairoContext& context, | |
90 int x, | |
91 int y); | |
92 | |
93 void SetSceneExtent(SharedValue<ViewportGeometry>::Locker& locker); | |
94 | |
95 public: | |
96 WorldSceneWidget() : | |
97 interactor_(NULL) | |
98 { | |
99 } | |
100 | |
101 using WidgetBase::Register; | |
102 using WidgetBase::Unregister; | |
103 | |
104 void Register(IWorldObserver& observer) | |
105 { | |
106 observers_.Register(observer); | |
107 } | |
108 | |
109 void Unregister(IWorldObserver& observer) | |
110 { | |
111 observers_.Unregister(observer); | |
112 } | |
113 | |
114 virtual SliceGeometry GetSlice() = 0; | |
115 | |
116 virtual void GetSceneExtent(double& x1, | |
117 double& y1, | |
118 double& x2, | |
119 double& y2) = 0; | |
120 | |
121 virtual void SetSize(unsigned int width, | |
122 unsigned int height); | |
123 | |
124 void SetInteractor(IWorldSceneInteractor& interactor); | |
125 | |
126 virtual void Start(); | |
127 | |
128 void SetDefaultView(); | |
129 | |
130 void SetView(const ViewportGeometry& view); | |
131 | |
132 ViewportGeometry GetView(); | |
133 | |
134 virtual IMouseTracker* CreateMouseTracker(MouseButton button, | |
135 int x, | |
136 int y, | |
137 KeyboardModifiers modifiers); | |
138 | |
139 virtual void RenderSceneMouseOver(CairoContext& context, | |
140 const ViewportGeometry& view, | |
141 double x, | |
142 double y); | |
143 | |
144 virtual IWorldSceneMouseTracker* CreateMouseSceneTracker(const ViewportGeometry& view, | |
145 MouseButton button, | |
146 double x, | |
147 double y, | |
148 KeyboardModifiers modifiers); | |
149 | |
150 virtual void MouseWheel(MouseWheelDirection direction, | |
151 int x, | |
152 int y, | |
153 KeyboardModifiers modifiers); | |
154 | |
155 virtual void KeyPressed(char key, | |
156 KeyboardModifiers modifiers); | |
157 }; | |
158 } |