Mercurial > hg > orthanc-stone
comparison OrthancStone/Sources/Viewport/WebAssemblyViewport.h @ 1512:244ad1e4e76a
reorganization of folders
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 07 Jul 2020 16:21:02 +0200 |
parents | Framework/Viewport/WebAssemblyViewport.h@6e43cac7833c |
children | a48ae10857b1 |
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1511:9dfeee74c1e6 | 1512:244ad1e4e76a |
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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) 2017-2020 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 #pragma once | |
23 | |
24 #if !defined(ORTHANC_ENABLE_WASM) | |
25 # error Macro ORTHANC_ENABLE_WASM must be defined | |
26 #endif | |
27 | |
28 #if ORTHANC_ENABLE_WASM != 1 | |
29 # error This file can only be used if targeting WebAssembly | |
30 #endif | |
31 | |
32 #include "IViewport.h" | |
33 | |
34 #include <Compatibility.h> | |
35 | |
36 #include <emscripten.h> | |
37 #include <emscripten/html5.h> | |
38 | |
39 #include <memory> | |
40 #include <string> | |
41 | |
42 namespace OrthancStone | |
43 { | |
44 class WebAssemblyViewport : public IViewport, | |
45 public boost::enable_shared_from_this<WebAssemblyViewport> | |
46 | |
47 { | |
48 private: | |
49 class WasmLock; | |
50 | |
51 std::string canvasId_; | |
52 std::string canvasCssSelector_; | |
53 std::unique_ptr<ICompositor> compositor_; | |
54 std::unique_ptr<ViewportController> controller_; | |
55 std::unique_ptr<IViewportInteractor> interactor_; | |
56 bool enableEmscriptenMouseEvents_; | |
57 | |
58 static EM_BOOL OnRequestAnimationFrame(double time, void *userData); | |
59 | |
60 static EM_BOOL OnResize(int eventType, const EmscriptenUiEvent *uiEvent, void *userData); | |
61 | |
62 static EM_BOOL OnMouseDown(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData); | |
63 | |
64 static EM_BOOL OnMouseMove(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData); | |
65 | |
66 static EM_BOOL OnMouseUp(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData); | |
67 | |
68 protected: | |
69 void Invalidate(); | |
70 | |
71 void ClearCompositor() | |
72 { | |
73 compositor_.reset(); | |
74 } | |
75 | |
76 bool HasCompositor() const | |
77 { | |
78 return compositor_.get() != NULL; | |
79 } | |
80 | |
81 void AcquireCompositor(ICompositor* compositor /* takes ownership */); | |
82 | |
83 virtual void Paint(ICompositor& compositor, | |
84 ViewportController& controller) = 0; | |
85 | |
86 virtual void UpdateSize(ICompositor& compositor) = 0; | |
87 | |
88 /** | |
89 The second argument is temporary and should be deleted once the migration | |
90 to interactors is finished. | |
91 */ | |
92 WebAssemblyViewport(const std::string& canvasId, | |
93 bool enableEmscriptenMouseEvents = true); | |
94 | |
95 void PostConstructor(); | |
96 | |
97 public: | |
98 virtual ILock* Lock() ORTHANC_OVERRIDE; | |
99 | |
100 ~WebAssemblyViewport(); | |
101 | |
102 virtual void UpdateCanvasSize(); | |
103 | |
104 /** | |
105 This method takes ownership | |
106 */ | |
107 void AcquireInteractor(IViewportInteractor* interactor); | |
108 | |
109 const std::string& GetCanvasId() const | |
110 { | |
111 return canvasId_; | |
112 } | |
113 | |
114 /** | |
115 emscripten functions requires the css selector for the canvas. This is | |
116 different from the canvas id (the syntax is '#mycanvasid') | |
117 */ | |
118 const std::string& GetCanvasCssSelector() const | |
119 { | |
120 return canvasCssSelector_; | |
121 } | |
122 }; | |
123 } |