axistitlecontroller.cpp

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//  ************************************************************************************************
//
//  qt-mvvm: Model-view-view-model framework for large GUI applications
//
//! @file      mvvm/view/mvvm/plotting/axistitlecontroller.cpp
//! @brief     Implements class CLASS?
//!
//! @homepage  http://www.bornagainproject.org
//! @license   GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2020
//! @authors   Gennady Pospelov et al, Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
//  ************************************************************************************************
 
#include "mvvm/plotting/axistitlecontroller.h"
#include "mvvm/standarditems/plottableitems.h"
#include "qcustomplot.h"
#include <stdexcept>
 
using namespace ModelView;
 
struct AxisTitleController::AxisTitleControllerImpl {
    QCPAxis* m_axis{nullptr};
 
    AxisTitleControllerImpl(QCPAxis* axis) : m_axis(axis)
    {
        if (!axis)
            throw std::runtime_error("AxisTitleController: axis is not initialized.");
    }
 
    void updateAxisFromItem(TextItem* item)
    {
        auto font = m_axis->labelFont();
        font.setPointSize(item->property<int>(TextItem::P_SIZE));
        font.setFamily(QString::fromStdString(item->property<std::string>(TextItem::P_FONT)));
        m_axis->setLabel(QString::fromStdString(item->property<std::string>(TextItem::P_TEXT)));
        m_axis->setLabelFont(font);
 
        m_axis->parentPlot()->replot();
    }
};
 
AxisTitleController::AxisTitleController(QCPAxis* axis)
    : p_impl(std::make_unique<AxisTitleControllerImpl>(axis))
 
{
}
 
AxisTitleController::~AxisTitleController() = default;
 
void AxisTitleController::subscribe()
{
    auto on_property_change = [this](auto, auto) { p_impl->updateAxisFromItem(currentItem()); };
    setOnPropertyChange(on_property_change);
 
    p_impl->updateAxisFromItem(currentItem());
}