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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/View/Canvas/MaskEditorCanvas.cpp
//! @brief Implements class MaskEditorCanvas.
//!
//! @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/Canvas/MaskEditorCanvas.h"
#include "Device/Data/Datafield.h"
#include "Device/Mask/IShape2D.h"
#include "Device/Mask/MaskStack.h"
#include "GUI/Model/Data/Data2DItem.h"
#include "GUI/Model/Mask/MasksSet.h"
#include "GUI/Model/Project/ProjectDocument.h"
#include "GUI/View/Plotter/ColorMap.h"
#include "GUI/View/Plotter/PlotStatusLabel.h"
#include "GUI/View/Scene/MaskGraphicsScene.h"
#include "GUI/View/Scene/MaskGraphicsView.h"
#include "GUI/View/Setup/FrameActions.h"
#include <QVBoxLayout>
namespace {
Datafield* createMaskedField(const Data2DItem* data)
{
// Requesting mask information
std::unique_ptr<IShape2D> roi;
Datafield* result = data->c_field()->clone();
MaskStack detectorMask;
for (const MaskItem* t : *data->masks()) {
if (t->isVisible()) {
if (const auto* roiItem = dynamic_cast<const RegionOfInterestItem*>(t))
roi = roiItem->createShape();
else {
std::unique_ptr<IShape2D> shape(t->createShape());
detectorMask.pushMask(*shape, t->maskValue());
}
}
}
// ROI mask has to be the last one, it can not be "unmasked" by other shapes
if (roi)
detectorMask.pushMask(*roi, true);
if (!detectorMask.hasMasks())
return nullptr;
for (size_t i = 0; i < result->size(); ++i)
if (detectorMask.isMasked(i, result->frame()))
(*result)[i] = 0;
return result;
}
} // namespace
MaskEditorCanvas::MaskEditorCanvas()
: m_scene(new MaskGraphicsScene)
, m_view(new MaskGraphicsView(m_scene))
, m_status_label(new PlotStatusLabel({m_scene->colorMap()}))
, m_data_item(nullptr)
{
setCanvasMode(Canvas2DMode::SELECTION);
setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
setMinimumSize(400, 400);
auto* layout = new QVBoxLayout;
setLayout(layout);
layout->setContentsMargins(0, 0, 0, 0);
layout->setSpacing(0);
layout->addWidget(m_view);
layout->addWidget(m_status_label);
connect(m_view, &MaskGraphicsView::changeActivityRequest, this,
&MaskEditorCanvas::changeActivityRequest);
connect(m_view, &MaskGraphicsView::deleteCurrentRequest, m_scene,
&MaskGraphicsScene::deleteCurrentItem);
// automatically switch to the appropriate projection tab
connect(m_scene, &MaskGraphicsScene::lineItemMoved, [this](const LineItem* sender) {
if (dynamic_cast<const HorizontalLineItem*>(sender)
&& (m_current_activity != Canvas2DMode::VERTICAL_PRJN))
emit projectionMoved(Canvas2DMode::HORIZONTAL_PRJN);
if (dynamic_cast<const VerticalLineItem*>(sender)
&& (m_current_activity != Canvas2DMode::HORIZONTAL_PRJN))
emit projectionMoved(Canvas2DMode::VERTICAL_PRJN);
});
}
MaskEditorCanvas::~MaskEditorCanvas() = default;
void MaskEditorCanvas::updateCanvas(Data2DItem* data_item)
{
ASSERT(data_item);
m_data_item = data_item;
m_scene->switchDataContext(data_item);
// set nullptr at destruction
connect(m_data_item, &QObject::destroyed, this, &MaskEditorCanvas::onDataDestroyed,
Qt::UniqueConnection);
// notify ProjectionPlot about the changes
connect(m_scene, &MaskGraphicsScene::lineItemProcessed, data_item,
&Data2DItem::projectionCreated, Qt::UniqueConnection);
connect(m_scene, &MaskGraphicsScene::lineItemMoved, data_item,
&Data2DItem::projectionPositionChanged, Qt::UniqueConnection);
connect(m_scene, &MaskGraphicsScene::lineItemDeleted, data_item, &Data2DItem::projectionGone,
Qt::UniqueConnection);
auto* cm = m_scene->colorMap();
ASSERT(cm);
connect(cm, &MousyPlot::enteringPlot, this, &MaskEditorCanvas::onEnteringColorMap,
Qt::UniqueConnection);
connect(cm, &MousyPlot::leavingPlot, this, &MaskEditorCanvas::onLeavingColorMap,
Qt::UniqueConnection);
connect(cm, &MousyPlot::positionChanged, this, &MaskEditorCanvas::onPositionChanged,
Qt::UniqueConnection);
connect(cm, &ColorMap::marginsChanged, this, &MaskEditorCanvas::marginsChanged,
Qt::UniqueConnection);
onLeavingColorMap();
}
void MaskEditorCanvas::changeMaskDisplay(bool pixelized)
{
ASSERT(m_data_item);
if (pixelized) {
if (Datafield* maskedData = ::createMaskedField(m_data_item)) {
// store data backup
m_backup_data.reset(m_data_item->c_field()->clone());
m_backup_interpolated = m_data_item->isInterpolated();
m_data_item->setDatafield(*maskedData);
m_data_item->setInterpolated(false);
} else {
m_backup_data.reset();
}
} else if (m_backup_data) {
m_data_item->setDatafield(*m_backup_data);
m_data_item->setInterpolated(m_backup_interpolated);
}
// avoid excessive signaling because hiding overlays automatically causes their unselection
m_scene->connectOverlaySelection(false);
if (const auto* container = m_data_item->masks())
for (MaskItem* t : *container)
t->setIsVisible(!pixelized && t->wasVisible());
m_scene->connectOverlaySelection(true);
// trigger reselecting the overlay of the current mask item
emit m_data_item->masksRW()->setChanged();
}
void MaskEditorCanvas::onPositionChanged(double x, double y)
{
if (!m_live_projection)
return;
if (m_current_activity == Canvas2DMode::HORIZONTAL_PRJN)
m_live_projection->setPos(y);
else if (m_current_activity == Canvas2DMode::VERTICAL_PRJN)
m_live_projection->setPos(x);
else
ASSERT_NEVER;
ASSERT(m_data_item);
emit m_data_item->projectionPositionChanged(m_live_projection.get());
}
void MaskEditorCanvas::onResetViewRequest()
{
ASSERT(m_data_item);
m_view->onResetViewRequest();
if (m_data_item->isZoomed())
m_data_item->resetView();
else
setZoomToROI();
gDoc->setModified();
}
void MaskEditorCanvas::setZoomToROI()
{
if (const MasksSet* masks = m_data_item->masks()) {
if (const auto* roiItem = masks->regionOfInterestItem()) {
ASSERT(m_data_item);
m_data_item->setXrange(roiItem->xLow().dVal(), roiItem->xUp().dVal());
m_data_item->setYrange(roiItem->yLow().dVal(), roiItem->yUp().dVal());
} else
m_data_item->resetView();
}
}
void MaskEditorCanvas::onEnteringColorMap()
{
if (m_live_projection)
return;
if (m_current_activity == Canvas2DMode::HORIZONTAL_PRJN)
m_live_projection = std::make_unique<HorizontalLineItem>(0.);
else if (m_current_activity == Canvas2DMode::VERTICAL_PRJN)
m_live_projection = std::make_unique<VerticalLineItem>(0.);
if (m_live_projection) {
m_live_projection->setIsVisible(false);
ASSERT(m_data_item);
emit m_data_item->projectionPositionChanged(m_live_projection.get());
}
}
void MaskEditorCanvas::onLeavingColorMap()
{
if (m_live_projection) {
ASSERT(m_data_item);
disconnect(m_live_projection.get(), nullptr, m_data_item, nullptr);
emit m_data_item->projectionGone(m_live_projection.get());
m_live_projection.reset();
}
}
void MaskEditorCanvas::setCanvasMode(Canvas2DMode::Flag mode)
{
m_current_activity = mode;
m_scene->onActivityChanged(mode);
onLeavingColorMap();
}
void MaskEditorCanvas::onDataDestroyed()
{
m_data_item = nullptr;
m_backup_data.reset(nullptr);
m_live_projection.reset(nullptr);
}
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