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comparison Framework/Widgets/WidgetBase.h @ 0:351ab0da0150

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initial commit
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 14 Oct 2016 15:34:11 +0200
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children 7207a407bcd8
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-1:000000000000 0:351ab0da0150
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 "IWidget.h"
36
37 #include "../Viewport/CairoContext.h"
38 #include "../Toolbox/ObserversRegistry.h"
39
40 #include <boost/thread.hpp>
41
42 namespace OrthancStone
43 {
44 class WidgetBase : public IWidget
45 {
46 private:
47 IStatusBar* statusBar_;
48 ObserversRegistry<IWidget> observers_;
49 bool started_;
50 boost::thread thread_;
51 bool backgroundCleared_;
52 uint8_t backgroundColor_[3];
53
54 protected:
55 void ClearBackgroundOrthanc(Orthanc::ImageAccessor& target) const;
56
57 void ClearBackgroundCairo(CairoContext& context) const;
58
59 void ClearBackgroundCairo(Orthanc::ImageAccessor& target) const;
60
61 void NotifyChange();
62
63 void UpdateStatusBar(const std::string& message);
64
65 static void WorkerThread(WidgetBase* that);
66
67 IStatusBar* GetStatusBar() const
68 {
69 return statusBar_;
70 }
71
72 virtual bool HasUpdateThread() const = 0;
73
74 virtual void UpdateStep() = 0;
75
76 public:
77 WidgetBase();
78
79 bool IsStarted() const
80 {
81 return started_;
82 }
83
84 void SetBackgroundCleared(bool clear)
85 {
86 backgroundCleared_ = clear;
87 }
88
89 bool IsBackgroundCleared() const
90 {
91 return backgroundCleared_;
92 }
93
94 void SetBackgroundColor(uint8_t red,
95 uint8_t green,
96 uint8_t blue);
97
98 void GetBackgroundColor(uint8_t& red,
99 uint8_t& green,
100 uint8_t& blue) const;
101
102 virtual void Register(IChangeObserver& observer);
103
104 virtual void Unregister(IChangeObserver& observer);
105
106 virtual void SetStatusBar(IStatusBar& statusBar)
107 {
108 statusBar_ = &statusBar;
109 }
110
111 virtual void ResetStatusBar()
112 {
113 statusBar_ = NULL;
114 }
115
116 virtual void Start();
117
118 virtual void Stop();
119
120 virtual bool Render(Orthanc::ImageAccessor& surface);
121 };
122 }