CTK 0.1.0
The Common Toolkit is a community effort to provide support code for medical image analysis, surgical navigation, and related projects.
ctkTransferFunction.h
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1/*=========================================================================
2
3 Library: CTK
4
5 Copyright (c) Kitware Inc.
6
7 Licensed under the Apache License, Version 2.0 (the "License");
8 you may not use this file except in compliance with the License.
9 You may obtain a copy of the License at
10
11 http://www.apache.org/licenses/LICENSE-2.0.txt
12
13 Unless required by applicable law or agreed to in writing, software
14 distributed under the License is distributed on an "AS IS" BASIS,
15 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 See the License for the specific language governing permissions and
17 limitations under the License.
18
19=========================================================================*/
20
21#ifndef __ctkTransferFunction_h
22#define __ctkTransferFunction_h
23
25#include <QObject>
26#include <QtGlobal>
27#include <QSharedPointer>
28#include <QVariant>
29
31#include "ctkPimpl.h"
32#include "ctkWidgetsExport.h"
33
34class ctkTransferFunctionPrivate;
36
37//-----------------------------------------------------------------------------
39struct CTK_WIDGETS_EXPORT ctkPoint
40{
42 :X(0),Value(0)
43 {
44 }
45 ctkPoint(qreal x, const QVariant& v)
46 :X(x),Value(v)
47 {
48 }
49 qreal X;
50 // QColor or qreal.
51 QVariant Value;
52};
53
54//-----------------------------------------------------------------------------
58struct CTK_WIDGETS_EXPORT ctkControlPoint
59{
61 inline const qreal& x()const {return this->P.X;}
62 inline const QVariant& value()const {return this->P.Value;}
64};
65
66//-----------------------------------------------------------------------------
68struct CTK_WIDGETS_EXPORT ctkBezierControlPoint : public ctkControlPoint
69{
73};
74
75//-----------------------------------------------------------------------------
77struct CTK_WIDGETS_EXPORT ctkNonLinearControlPoint : public ctkControlPoint
78{
81};
82
83//-----------------------------------------------------------------------------
85class CTK_WIDGETS_EXPORT ctkTransferFunction: public QObject
86{
87 Q_OBJECT
88public:
89 ctkTransferFunction(QObject* parent = 0);
91
92 virtual ctkControlPoint* controlPoint(int index)const = 0;
93 inline QVariant value(int index)const;
94 virtual QVariant value(qreal pos)const = 0;
95
96 virtual int count()const = 0;
97 virtual bool isDiscrete()const = 0;
98 virtual bool isEditable()const = 0;
99
100 inline void range(qreal rangeValues[2])const;
101 virtual void range(qreal& minRange, qreal& maxRange)const=0;
102 virtual QVariant minValue()const = 0;
103 virtual QVariant maxValue()const = 0;
104 inline void valueRange(QVariant range[2])const;
106 virtual int insertControlPoint(const ctkControlPoint& cp) = 0;
107 virtual int insertControlPoint(qreal pos) = 0;
108
109 virtual void removeControlPoint( qreal pos ) = 0;
110
114 virtual void setControlPointPos(int index, qreal pos)=0;
118 virtual void setControlPointValue(int index, const QVariant& value)=0;
119
121Q_SIGNALS:
122 void changed();
123protected:
124 QScopedPointer<ctkTransferFunctionPrivate> d_ptr;
125
126private:
127 Q_DECLARE_PRIVATE(ctkTransferFunction);
128 Q_DISABLE_COPY(ctkTransferFunction);
129};
130
131//-----------------------------------------------------------------------------
132QVariant ctkTransferFunction::value(int index)const
133{
134 QSharedPointer<ctkControlPoint> cp(this->controlPoint(index));
135 return cp->P.Value;
136}
137
138//-----------------------------------------------------------------------------
139void ctkTransferFunction::range(qreal rangeValues[2])const
140{
141 this->range(rangeValues[0], rangeValues[1]);
142}
143
144//-----------------------------------------------------------------------------
145void ctkTransferFunction::valueRange(QVariant rangeValues[2])const
146{
147 rangeValues[0] = this->minValue();
148 rangeValues[1] = this->maxValue();
149}
150
151#endif
virtual QVariant value(qreal pos) const =0
virtual bool isEditable() const =0
virtual void setControlPointPos(int index, qreal pos)=0
virtual void removeControlPoint(qreal pos)=0
virtual void setControlPointValue(int index, const QVariant &value)=0
virtual int insertControlPoint(qreal pos)=0
virtual QVariant minValue() const =0
ctkTransferFunction(QObject *parent=0)
virtual int count() const =0
void valueRange(QVariant range[2]) const
QVariant value(int index) const
virtual void range(qreal &minRange, qreal &maxRange) const =0
virtual ctkControlPoint * controlPoint(int index) const =0
ctkTransferFunctionRepresentation * representation() const
virtual bool isDiscrete() const =0
void range(qreal rangeValues[2]) const
QScopedPointer< ctkTransferFunctionPrivate > d_ptr
virtual ~ctkTransferFunction()
virtual int insertControlPoint(const ctkControlPoint &cp)=0
virtual QVariant maxValue() const =0
virtual ~ctkBezierControlPoint()
const QVariant & value() const
const qreal & x() const
virtual ~ctkControlPoint()
virtual ~ctkNonLinearControlPoint()
QVariant Value
ctkPoint(qreal x, const QVariant &v)