pqVectorWidget.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-FileCopyrightText: Copyright (c) Sandia Corporation
// SPDX-License-Identifier: BSD-3-Clause
#ifndef pqVectorWidget_h
#define pqVectorWidget_h
 
#include "pqWidgetsModule.h"
 
#include <QVariant>
#include <QVector2D>
#include <QVector3D>
#include <QWidget>
 
class PQWIDGETS_EXPORT pqVectorWidget : public QWidget
{
  Q_OBJECT
  Q_PROPERTY(QVariant value READ value USER true);
 
public:
  pqVectorWidget(const QVariant& value, QWidget* parent = nullptr);
  ~pqVectorWidget() override = default;
 
  const QVariant& value() const { return this->Vector; }
 
Q_SIGNALS:
  void valueChanged(const QVariant&);
 
public Q_SLOTS:
 
  virtual void setValue(int index, float value) = 0;
 
protected:
  QVariant Vector;
 
  void CreateUI(unsigned int nbElem);
  virtual float getValue(int index) = 0;
 
private:
  Q_DISABLE_COPY(pqVectorWidget);
};
 
template <class T, unsigned int S>
class pqVectorWidgetImpl : public pqVectorWidget
{
public:
  pqVectorWidgetImpl(const T& value, QWidget* parent = nullptr)
    : pqVectorWidget(value, parent)
  {
    // Create the UI with the specified templated number of elements
    this->CreateUI(S);
  }
 
  T value() const { return this->Vector.template value<T>(); }
 
  void setValue(int index, float value) override
  {
    T vec = this->Vector.template value<T>();
    vec[index] = value;
    this->Vector = QVariant::fromValue(vec);
    Q_EMIT this->valueChanged(this->Vector);
  }
 
protected:
  float getValue(int index) override { return this->Vector.template value<T>()[index]; }
};
 
#endif