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comparison Resources/Graveyard/Deprecated/Platforms/Wasm/Defaults.h @ 1503:553084468225

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moving /Deprecated/ to /Resources/Graveyard/Deprecated/
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 30 Jun 2020 11:38:13 +0200
parents Deprecated/Platforms/Wasm/Defaults.h@828a9b4ee1b7
children
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1502:e5729dab3f67 1503:553084468225
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 #include <emscripten/emscripten.h>
25
26 #include "../../Framework/Deprecated/Viewport/WidgetViewport.h"
27 #include "../../Framework/Deprecated/Widgets/LayoutWidget.h"
28 #include <Applications/IStoneApplication.h>
29 #include <Platforms/Wasm/WasmPlatformApplicationAdapter.h>
30
31 typedef Deprecated::WidgetViewport* ViewportHandle; // the objects exchanged between JS and C++
32
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36
37 // JS methods accessible from C++
38 extern void ScheduleWebViewportRedrawFromCpp(ViewportHandle cppViewportHandle);
39 extern void UpdateStoneApplicationStatusFromCppWithString(const char* statusUpdateMessage);
40 extern void UpdateStoneApplicationStatusFromCppWithSerializedMessage(const char* statusUpdateMessage);
41 extern void stone_console_error(const char*);
42 extern void stone_console_warning(const char*);
43 extern void stone_console_info(const char*);
44 extern void stone_console_trace(const char*);
45
46 // C++ methods accessible from JS
47 extern void EMSCRIPTEN_KEEPALIVE CreateWasmApplication(ViewportHandle cppViewportHandle);
48 extern void EMSCRIPTEN_KEEPALIVE SetStartupParameter(const char* keyc, const char* value);
49
50
51 #ifdef __cplusplus
52 }
53 #endif
54
55 // these methods must be implemented in the custom app "mainWasm.cpp"
56 extern OrthancStone::IStoneApplication* CreateUserApplication(OrthancStone::MessageBroker& broker);
57 extern OrthancStone::WasmPlatformApplicationAdapter* CreateWasmApplicationAdapter(OrthancStone::MessageBroker& broker, OrthancStone::IStoneApplication* application);
58
59 namespace OrthancStone {
60
61 // default Observer to trigger Viewport redraw when something changes in the Viewport
62 class ViewportContentChangedObserver : public IObserver
63 {
64 private:
65 // Flag to avoid flooding JavaScript with redundant Redraw requests
66 bool isScheduled_;
67
68 public:
69 ViewportContentChangedObserver(MessageBroker& broker) :
70 IObserver(broker),
71 isScheduled_(false)
72 {
73 }
74
75 void Reset()
76 {
77 isScheduled_ = false;
78 }
79
80 void OnViewportChanged(const Deprecated::IViewport::ViewportChangedMessage& message)
81 {
82 if (!isScheduled_)
83 {
84 ScheduleWebViewportRedrawFromCpp((ViewportHandle)&message.GetOrigin()); // loosing constness when transmitted to Web
85 isScheduled_ = true;
86 }
87 }
88 };
89
90 // default status bar to log messages on the console/stdout
91 class StatusBar : public Deprecated::IStatusBar
92 {
93 public:
94 virtual void ClearMessage()
95 {
96 }
97
98 virtual void SetMessage(const std::string& message)
99 {
100 printf("%s\n", message.c_str());
101 }
102 };
103 }