CustusX  15.3.4-beta
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cxTransferFunctionAlphaWidget.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
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8 modification, are permitted provided that the following conditions are met:
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31 =========================================================================*/
32 
33 #ifndef CXTRANSFERFUNCTIONALPHAWIDGET_H_
34 #define CXTRANSFERFUNCTIONALPHAWIDGET_H_
35 
36 #include "cxGuiExport.h"
37 
38 #include "cxBaseWidget.h"
39 
40 #include <limits.h>
41 #include "cxImage.h"
42 #include "cxForwardDeclarations.h"
43 #include "cxActiveImageProxy.h"
44 #include "cxLegacySingletons.h"
45 class QRect;
46 
47 namespace cx
48 {
59 class cxGui_EXPORT TransferFunctionAlphaWidget : public BaseWidget
60 {
61  Q_OBJECT
62 
63  void clearBackground(QPainter &painter);
64 public:
65  TransferFunctionAlphaWidget(PatientModelServicePtr patientModelService, QWidget* parent);
66  virtual ~TransferFunctionAlphaWidget();
67  virtual QString defaultWhatsThis() const;
68 
69  void setData(ImagePtr image, ImageTFDataPtr tfData);
70  void setReadOnly(bool readOnly);
71 
72 public slots:
73  void activeImageTransferFunctionsChangedSlot();
74 
75 protected:
76  struct AlphaPoint
77  {
78  int position;
79  int value;
80  AlphaPoint() :
81  position(INT_MIN),
82  value(INT_MIN)
83  {}
84  AlphaPoint(int pos, int val) :
85  position(pos),
86  value(val)
87  {}
88  void reset()
89  {
90  position = INT_MIN;
91  value = INT_MIN;
92  }
93  bool isValid()
94  {
95  if(position != INT_MIN)
96  return true;
97  return false;
98  }
99  };
100 
101  virtual void enterEvent(QEvent* event);
102  virtual void leaveEvent(QEvent* event);
103  virtual void mousePressEvent(QMouseEvent* event);
104  virtual void mouseReleaseEvent(QMouseEvent* event);
105  virtual void mouseMoveEvent(QMouseEvent* event);
106  virtual void keyPressEvent(QKeyEvent* event);
107 
108  virtual void paintEvent(QPaintEvent* event);
109  virtual void resizeEvent(QResizeEvent* evt);
110 
111  AlphaPoint selectPoint(QPoint pos);
112  AlphaPoint getCurrentAlphaPoint(QPoint pos);
113  void toggleSelectedPoint(QPoint pos);
114  void moveCurrentAlphaPoint(AlphaPoint newAlphaPoint);
115  QPoint alpha2screen(AlphaPoint pt) const;
116  void updateTooltip(QPoint pos);
117  void updateTooltip(AlphaPoint point);
118 
119  bool isEndpoint(int intensity) const;
120  void paintHistogram(QPainter& painter);
121  void paintOpacityGraph(QPainter& painter);
122  std::pair<int,int> findAllowedMoveRangeAroundAlphaPoint(int selectedPointIntensity);
123 
124  QRect mFullArea;
125  QRect mPlotArea;
126  int mBorder;
127  bool mReadOnly;
128 
129  std::map<int, QRect> mPointRects;
130  AlphaPoint mSelectedAlphaPoint;
131 // bool mEndPoint;///< Current alpha point is an endpoint
132 
133  ImagePtr mImage;
134  ImageTFDataPtr mImageTF;
135  ActiveImageProxyPtr mActiveImageProxy;
136 
137  virtual QSize sizeHint () const { return QSize(200, 100);};
138 };
139 }
140 #endif /* CXTRANSFERFUNCTIONALPHAWIDGET_H_ */
cx::ImagePtr
boost::shared_ptr< class Image > ImagePtr
Definition: cxDicomWidget.h:48
cx::ActiveImageProxyPtr
boost::shared_ptr< class ActiveImageProxy > ActiveImageProxyPtr
Definition: cxDataInterface.h:50
cx::PatientModelServicePtr
boost::shared_ptr< class PatientModelService > PatientModelServicePtr
Definition: cxLegacySingletons.h:44
cx::TransferFunctionAlphaWidget::mReadOnly
bool mReadOnly
Is class readOnly? Eg no mouse interaction possible.
Definition: cxTransferFunctionAlphaWidget.h:127
cx::TransferFunctionAlphaWidget::mSelectedAlphaPoint
AlphaPoint mSelectedAlphaPoint
The current alpha point.
Definition: cxTransferFunctionAlphaWidget.h:130
cx::BaseWidget
Interface for QWidget which handles widgets uniformly for the system.
Definition: cxBaseWidget.h:108
cx::TransferFunctionAlphaWidget::mBorder
int mBorder
The size of the border around the transferfunction. The size of the rectangles are mBorder * 2...
Definition: cxTransferFunctionAlphaWidget.h:126
cx::TransferFunctionAlphaWidget::mPointRects
std::map< int, QRect > mPointRects
Cache with all point rectangles.
Definition: cxTransferFunctionAlphaWidget.h:129
cx::ImageTFDataPtr
boost::shared_ptr< class ImageTFData > ImageTFDataPtr
Definition: cxForwardDeclarations.h:71
cx::TransferFunctionAlphaWidget::AlphaPoint
Internal placeholder for a function point.
Definition: cxTransferFunctionAlphaWidget.h:76