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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/Model/Par/ParameterTreeItems.h
//! @brief Defines classes ParameterLabelItem, ParameterItem, ParameterContainerItem.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#ifndef BORNAGAIN_GUI_MODEL_PAR_PARAMETERTREEITEMS_H
#define BORNAGAIN_GUI_MODEL_PAR_PARAMETERTREEITEMS_H
#include "Base/Type/OwningVector.h"
#include "GUI/Model/Descriptor/DoubleProperty.h"
#include "GUI/Model/Par/ParameterBackup.h"
#include <QColor>
#include <QXmlStreamReader>
//! ParameterTreeItems is a collection of items necessary to form a tuning tree for
//! real time widget.
//! The ParameterLabelItem class represents a label (string without value, like 'Layer',
//! 'MultiLayer') in a parameter tuning tree.
class ParameterLabelItem : public QObject {
Q_OBJECT
public:
ParameterLabelItem(const QString& title, QObject* parent);
QString title() const { return m_title; }
void setTitle(const QString& title) { m_title = title; }
QColor color() const { return m_color; }
void setColor(const QColor& color) { m_color = color; }
bool collapsed() const { return m_collapsed; }
void setCollapsed(bool collapsed) { m_collapsed = collapsed; }
void writeTo(QXmlStreamWriter* w) const;
void readFrom(QXmlStreamReader* r);
private:
QString m_title;
QColor m_color;
bool m_collapsed = false;
};
//! The ParameterItem class represent a tuning value in a parameter tuning tree.
class ParameterItem : public QObject {
Q_OBJECT
public:
ParameterItem(QObject* parent);
QString title() const { return m_title; }
void setTitle(const QString& title) { m_title = title; }
double valueOfLink() const;
void propagateValueToLink(double newValue);
//! Unique string to identify this ParameterItem.
//!
//! The link is arbitrary. It cannot be used for finding the linked item (therefore it does
//! not have to be a model path). However, it is used for comparison, also across project
//! load/save. Therefore the link is always the same, not e.g. an always generated UUID.
//! This link is used for setting backup values and for finding this ParameterItem when
//! referring from fit parameters.
QString link() const;
QString titleForFitItem() const;
//! Links this item to the given value defined by a property.
void linkToProperty(DoubleProperty& d);
RealLimits limitsOfLink() const;
int decimalsOfLink() const;
private:
QString m_title;
const DoubleProperty* m_d; // for the access to limits, uid, decimals
std::function<double()> getPropertyValue = nullptr;
std::function<void(double)> setPropertyValue = nullptr;
};
//! The ParameterContainerItem is a top item to hold all ParameterItem, represents an entry
//! point to parameter tuning tree. Part of JobItem.
class ParameterContainerItem {
public:
ParameterContainerItem();
void writeTo(QXmlStreamWriter* w) const;
void readFrom(QXmlStreamReader* r);
QStringList backupTitles() const;
void addBackupValues(const QString& title);
void restoreBackupValues(int index);
void deleteBackupValues(int index);
ParameterItem* findParameterItem(const QString& link) const;
QObject* parameterTreeRoot();
int currentIndex() const { return m_current_index; }
void setCurrentIndex(int i) { m_current_index = i; }
private:
void addBackupValue(QObject* item);
void restoreBackupValue(QObject* item, int index);
int m_current_index = 0;
OwningVector<ParameterBackup> m_backup_values;
std::unique_ptr<QObject> m_parameter_tree_root;
};
#endif // BORNAGAIN_GUI_MODEL_PAR_PARAMETERTREEITEMS_H
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