Mercurial > hg > orthanc-stone
annotate Framework/Widgets/WorldSceneWidget.h @ 284:38b0ac8055b9 am-2
Qt: catch and forward keyboard events
author | am@osimis.io |
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date | Tue, 28 Aug 2018 11:09:37 +0200 |
parents | 300d8b8c48b3 |
children | 8716176ff7f0 |
rev | line source |
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0 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
0 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
47 | 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. | |
0 | 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 | |
47 | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 * Affero General Public License for more details. | |
281 | 16 * |
47 | 17 * You should have received a copy of the GNU Affero General Public License |
0 | 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 **/ | |
20 | |
21 | |
22 #pragma once | |
23 | |
24 #include "CairoWidget.h" | |
25 #include "IWorldSceneInteractor.h" | |
26 | |
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27 #include "../Toolbox/ObserversRegistry.h" |
0 | 28 #include "../Toolbox/ViewportGeometry.h" |
29 | |
30 namespace OrthancStone | |
31 { | |
32 class WorldSceneWidget : public CairoWidget | |
33 { | |
34 public: | |
35 class IWorldObserver : public boost::noncopyable | |
36 { | |
37 public: | |
38 virtual ~IWorldObserver() | |
39 { | |
40 } | |
41 | |
42 virtual void NotifySizeChange(const WorldSceneWidget& source, | |
43 ViewportGeometry& view) = 0; // Can be tuned by the observer | |
44 | |
45 virtual void NotifyViewChange(const WorldSceneWidget& source, | |
46 const ViewportGeometry& view) = 0; | |
47 }; | |
48 | |
281 | 49 class PanMouseTracker : public IMouseTracker |
50 { | |
51 private: | |
52 WorldSceneWidget& that_; | |
53 double previousPanX_; | |
54 double previousPanY_; | |
55 double downX_; | |
56 double downY_; | |
57 | |
58 public: | |
59 PanMouseTracker(WorldSceneWidget& that, int x, int y); | |
60 | |
61 virtual void Render(Orthanc::ImageAccessor& surface) {} | |
62 | |
63 virtual void MouseUp() {} | |
64 | |
65 virtual void MouseMove(int x, int y); | |
66 }; | |
67 | |
68 class ZoomMouseTracker : public IMouseTracker | |
69 { | |
70 private: | |
71 WorldSceneWidget& that_; | |
72 int downX_; | |
73 int downY_; | |
74 double centerX_; | |
75 double centerY_; | |
76 double oldZoom_; | |
77 | |
78 public: | |
79 ZoomMouseTracker(WorldSceneWidget& that, int x, int y); | |
80 | |
81 void Render(Orthanc::ImageAccessor& surface) {} | |
82 | |
83 virtual void MouseUp() {} | |
84 | |
85 virtual void MouseMove(int x, int y); | |
86 }; | |
87 | |
0 | 88 private: |
89 struct SizeChangeFunctor; | |
90 | |
91 class SceneMouseTracker; | |
92 | |
93 typedef ObserversRegistry<WorldSceneWidget, IWorldObserver> Observers; | |
94 | |
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95 ViewportGeometry view_; |
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96 Observers observers_; |
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97 IWorldSceneInteractor* interactor_; |
0 | 98 |
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99 public: |
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100 virtual Extent2D GetSceneExtent() = 0; |
0 | 101 |
102 protected: | |
103 virtual bool RenderScene(CairoContext& context, | |
104 const ViewportGeometry& view) = 0; | |
105 | |
106 virtual bool RenderCairo(CairoContext& context); | |
107 | |
108 virtual void RenderMouseOverCairo(CairoContext& context, | |
109 int x, | |
110 int y); | |
111 | |
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112 void SetSceneExtent(ViewportGeometry& geometry); |
0 | 113 |
114 public: | |
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115 WorldSceneWidget(const std::string& name) : |
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116 CairoWidget(name), |
0 | 117 interactor_(NULL) |
118 { | |
119 } | |
120 | |
121 void Register(IWorldObserver& observer) | |
122 { | |
123 observers_.Register(observer); | |
124 } | |
125 | |
126 void Unregister(IWorldObserver& observer) | |
127 { | |
128 observers_.Unregister(observer); | |
129 } | |
130 | |
131 virtual void SetSize(unsigned int width, | |
132 unsigned int height); | |
133 | |
134 void SetInteractor(IWorldSceneInteractor& interactor); | |
135 | |
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parents:
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136 virtual void SetDefaultView(); |
0 | 137 |
138 void SetView(const ViewportGeometry& view); | |
139 | |
140 ViewportGeometry GetView(); | |
141 | |
142 virtual IMouseTracker* CreateMouseTracker(MouseButton button, | |
143 int x, | |
144 int y, | |
145 KeyboardModifiers modifiers); | |
146 | |
147 virtual void RenderSceneMouseOver(CairoContext& context, | |
148 const ViewportGeometry& view, | |
149 double x, | |
150 double y); | |
151 | |
152 virtual IWorldSceneMouseTracker* CreateMouseSceneTracker(const ViewportGeometry& view, | |
153 MouseButton button, | |
154 double x, | |
155 double y, | |
156 KeyboardModifiers modifiers); | |
157 | |
158 virtual void MouseWheel(MouseWheelDirection direction, | |
159 int x, | |
160 int y, | |
161 KeyboardModifiers modifiers); | |
162 | |
163 virtual void KeyPressed(char key, | |
164 KeyboardModifiers modifiers); | |
165 }; | |
166 } |