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cxOptimizedUpdateWidget.h
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1 /*=========================================================================
2 This file is part of CustusX, an Image Guided Therapy Application.
3 
4 Copyright (c) 2008-2014, SINTEF Department of Medical Technology
5 All rights reserved.
6 
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
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10 1. Redistributions of source code must retain the above copyright notice,
11  this list of conditions and the following disclaimer.
12 
13 2. Redistributions in binary form must reproduce the above copyright notice,
14  this list of conditions and the following disclaimer in the documentation
15  and/or other materials provided with the distribution.
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17 3. Neither the name of the copyright holder nor the names of its contributors
18  may be used to endorse or promote products derived from this software
19  without specific prior written permission.
20 
21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
25 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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30 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 =========================================================================*/
32 
33 
34 #ifndef CXOPTIMIZEDUPDATEWIDGET_H_
35 #define CXOPTIMIZEDUPDATEWIDGET_H_
36 
37 #include "cxResourceWidgetsExport.h"
38 
39 #include <QWidget>
40 
41 namespace cx
42 {
43 
62 class cxResourceWidgets_EXPORT OptimizedUpdateWidget: public QWidget
63 {
64 Q_OBJECT
65 public:
66  OptimizedUpdateWidget(QWidget* parent = NULL);
68  void forcePrePaint(); // use to explicitly call the prePaintEvent. Use only for testing!
69 
70 public slots:
74  virtual void setModified();
75 
76 protected:
81  virtual void prePaintEvent() {}
86  virtual void paintEvent(QPaintEvent* event);
87 
88 private:
89  void prePaintEventPrivate();
90 
91  bool mModified;
92 };
93 
94 } // namespace cx
95 
96 #endif // CXOPTIMIZEDUPDATEWIDGET_H_
Interface for all classes following the modified/prepaint paradigm.