pqTransferFunctionWidget.h
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1 /*=========================================================================
2 
3  Program: ParaView
4  Module: $RCSfile$
5 
6  Copyright (c) 2005,2006 Sandia Corporation, Kitware Inc.
7  All rights reserved.
8 
9  ParaView is a free software; you can redistribute it and/or modify it
10  under the terms of the ParaView license version 1.2.
11 
12  See License_v1.2.txt for the full ParaView license.
13  A copy of this license can be obtained by contacting
14  Kitware Inc.
15  28 Corporate Drive
16  Clifton Park, NY 12065
17  USA
18 
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR
23 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 
31 ========================================================================*/
32 #ifndef pqTransferFunctionWidget_h
33 #define pqTransferFunctionWidget_h
34 
35 #include "pqComponentsModule.h"
36 #include "vtkType.h"
37 #include <QWidget>
38 
40 class vtkScalarsToColors;
41 class vtkTable;
42 
50 {
51  Q_OBJECT
52  typedef QWidget Superclass;
53 
54 public:
55  pqTransferFunctionWidget(QWidget* parent = nullptr);
56  ~pqTransferFunctionWidget() override;
57 
64  void initialize(
65  vtkScalarsToColors* stc, bool stc_editable, vtkPiecewiseFunction* pwf, bool pwf_editable);
66 
70  vtkIdType currentPoint() const;
71 
75  vtkIdType numberOfControlPoints() const;
76 
78 
81  void SetLogScaleXAxis(bool logScale);
82  bool GetLogScaleXAxis() const;
84 
86 
90  vtkScalarsToColors* scalarsToColors() const;
91  vtkPiecewiseFunction* piecewiseFunction() const;
93 
95 
98  void SetControlPointsFreehandDrawing(bool use);
99  bool GetControlPointsFreehandDrawing() const;
101 
102 public Q_SLOTS: // NOLINT(readability-redundant-access-specifiers)
106  void setCurrentPoint(vtkIdType index);
107 
113  void setCurrentPointPosition(double xpos);
114 
119  void render();
120 
125  void setHistogramTable(vtkTable* table);
126 
127 Q_SIGNALS:
131  void currentPointChanged(vtkIdType index);
132 
137  void controlPointsModified();
138 
142  void chartRangeModified();
143 
147  void rangeHandlesRangeChanged(double rangeMin, double rangeMax);
148 
152  void rangeHandlesDoubleClicked();
153 
154 protected Q_SLOTS:
159  void onCurrentChangedEvent();
160 
165  void onRangeHandlesRangeChanged();
166 
170  void showUsageStatus();
171 
175  void editColorAtCurrentControlPoint();
176 
177 protected: // NOLINT(readability-redundant-access-specifiers)
182  void onCurrentPointEditEvent();
183 
184 private:
185  Q_DISABLE_COPY(pqTransferFunctionWidget)
186 
187  class pqInternals;
188  pqInternals* Internals;
189 };
190 
191 #endif
#define PQCOMPONENTS_EXPORT
pqTransferFunctionWidget provides a widget that can edit the control points in a vtkPiecewiseFunction...
int vtkIdType
index