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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/View/Realspace/RealspaceWidget.cpp
//! @brief Implements class RealspaceScene.
//!
//! @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)
//
// ************************************************************************************************
#include "GUI/View/Realspace/RealspaceWidget.h"
#include "Base/Util/Assert.h"
#include "GUI/Model/Material/MaterialItem.h"
#include "GUI/Model/Project/ProjectDocument.h"
#include "GUI/Model/Sample/SampleItem.h"
#include "GUI/View/Info/CautionSign.h"
#include "GUI/View/Realspace/RealspaceBuilder.h"
#include "GUI/View/Widget/AppConfig.h"
#include "GUI/View/Widget/FileDialog.h"
#include "Img3D/Model/Model.h"
#include "Img3D/View/Canvas.h"
#include <QApplication>
#include <QMessageBox>
#include <QVBoxLayout>
RealspaceWidget::RealspaceWidget(QWidget* parent)
: QWidget(parent)
, m_canvas(new Img3D::Canvas)
, m_caution_sign(new CautionSign(this))
, m_caution_label(new QLabel(this))
, m_displayed_item(nullptr)
, m_containing_sample(nullptr)
, m_first_view(true)
{
m_canvas->layout()->addWidget(m_caution_label);
auto* layout = new QVBoxLayout(this);
layout->setContentsMargins(0, 0, 0, 0);
layout->setSpacing(0);
layout->addWidget(m_canvas);
}
RealspaceWidget::~RealspaceWidget() = default;
void RealspaceWidget::setDisplayedItem(SampleItem* containingSample, Item3D* item)
{
if (!item) {
resetRealScene();
return;
}
m_containing_sample = containingSample;
m_displayed_item = item;
connectShowRoughnessCheckbox();
updateRealScene();
defaultView(); // Enforces default view and also sets the zoomLevel to default i.e. 0
}
void RealspaceWidget::changeLayerSize(double layerSizeChangeScale)
{
// when no object is selected --> take no action
if (!m_displayed_item)
return;
m_scene_geometry.layerSize = m_scene_geometry.layerSize * layerSizeChangeScale;
updateRealScene();
}
void RealspaceWidget::showEvent(QShowEvent*)
{
updateRealScene();
if (m_first_view)
m_canvas->defaultView();
m_first_view = false;
}
void RealspaceWidget::savePicture()
{
static const QString defaultExtension = ".png";
QString fname = GUI::FileDialog::w1_1f("Save 3D real space view", gApp->artifact_export_dir,
"*" + defaultExtension);
if (fname.isEmpty())
return;
if (!fname.endsWith(defaultExtension))
fname += defaultExtension;
QPixmap pixmap(this->size());
render(&pixmap, QPoint(), childrenRegion());
bool ok = pixmap.save(fname);
if (!ok)
QMessageBox::warning(nullptr, "Cannot save", "Cannot save picture in file " + fname);
}
void RealspaceWidget::updateRealScene()
{
if (!isVisible()) // to improve performance
return;
if (!m_canvas->isValid())
// GL not initialized (widget not shown so far) => no updating possible
return;
QApplication::setOverrideCursor(Qt::WaitCursor);
m_realspace_model = std::make_unique<Img3D::Model>();
const auto colorForMaterialName = [&](const QString& materialName) {
return m_containing_sample->materialModel().materialItemFromName(materialName)->color();
};
RealspaceBuilder builder3D(colorForMaterialName);
try {
m_caution_sign->clear();
m_caution_label->hide();
m_realspace_model->defaultCameraPosition = m_canvas->camera()->getPos();
unsigned numParticles = 0;
if (m_displayed_item)
builder3D.populate(m_realspace_model.get(), m_displayed_item, m_containing_sample,
m_scene_geometry, numParticles);
if (m_scene_geometry.maxNumberOfParticlesToShow < numParticles)
throw std::runtime_error("The number of particles to display is too large");
m_canvas->setModel(m_realspace_model.get());
} catch (const std::exception& ex) {
m_canvas->setModel(nullptr);
m_caution_label->show();
m_caution_label->setText(ex.what());
m_caution_sign->setCautionMessage(ex.what());
} catch (...) {
ASSERT_NEVER; // don't tolerate other exceptions
}
QApplication::restoreOverrideCursor();
}
void RealspaceWidget::connectShowRoughnessCheckbox()
{
if (!m_containing_sample || !m_showRoughnessCheckbox)
return;
m_showRoughnessCheckbox->disconnect();
m_showRoughnessCheckbox->setChecked(m_containing_sample->showRoughness);
connect(m_showRoughnessCheckbox, &QCheckBox::toggled, [this] {
m_containing_sample->showRoughness = m_showRoughnessCheckbox->isChecked();
updateRealScene();
gDoc->setModified();
});
}
void RealspaceWidget::resetRealScene()
{
m_realspace_model.reset();
m_canvas->setModel(nullptr);
m_displayed_item = nullptr;
m_containing_sample = nullptr;
}
void RealspaceWidget::defaultView()
{
m_canvas->defaultView();
}
void RealspaceWidget::sideView()
{
m_canvas->sideView();
}
void RealspaceWidget::topView()
{
m_canvas->topView();
}
void RealspaceWidget::regenerateParticlePositions()
{
ASSERT(m_containing_sample);
m_containing_sample->adjustLayoutSeeds();
updateRealScene();
}
void RealspaceWidget::regenerateRoughness()
{
ASSERT(m_containing_sample);
m_containing_sample->adjustLayerSeeds(true);
updateRealScene();
}
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