ProjectionsEditor.cpp

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//  ************************************************************************************************
//
//  BornAgain: simulate and fit reflection and scattering
//
//! @file      GUI/View/Projection/ProjectionsEditor.cpp
//! @brief     Implements class ProjectionsEditor
//!
//! @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/Projection/ProjectionsEditor.h"
#include "GUI/Model/Data/IntensityDataItem.h"
#include "GUI/Model/Model/SessionModel.h"
#include "GUI/View/PlotUtil/IntensityDataPropertyWidget.h"
#include "GUI/View/Projection/ProjectionsEditorActions.h"
#include "GUI/View/Projection/ProjectionsEditorCanvas.h"
#include "GUI/View/Projection/ProjectionsToolbar.h"
#include "GUI/View/Projection/ProjectionsWidget.h"
#include <QBoxLayout>
#include <QItemSelectionModel>
#include <QSplitter>
 
ProjectionsEditor::ProjectionsEditor(SessionItemWidget* upperSessionItemWidget, QWidget* parent)
    : QMainWindow(parent)
    , m_editorActions(new ProjectionsEditorActions(this))
    , m_toolbar(new ProjectionsToolbar(m_editorActions))
    , m_projectionsCanvas(new ProjectionsEditorCanvas)
    , m_projectionsWidget(new ProjectionsWidget)
    , m_propertyPanel(new IntensityDataPropertyWidget(
          upperSessionItemWidget)) // here not "this", because IntensityDataPropertyWidget requires
                                   // access to jobItem
    , m_selectionModel(nullptr)
{
    addToolBar(Qt::RightToolBarArea, m_toolbar);
 
    auto* splitter = new QSplitter;
    splitter->setOrientation(Qt::Vertical);
    splitter->addWidget(m_projectionsCanvas);
    splitter->addWidget(m_projectionsWidget);
 
    auto* centralWidget = new QWidget(this);
    auto* hLayout = new QHBoxLayout(centralWidget);
    hLayout->setContentsMargins(0, 0, 0, 0);
    hLayout->setSpacing(0);
    hLayout->addWidget(splitter);
    hLayout->addWidget(m_propertyPanel);
 
    setCentralWidget(centralWidget);
 
    m_propertyPanel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Minimum);
    m_propertyPanel->setHidden(true);
    setup_connections();
}
 
void ProjectionsEditor::setContext(SessionModel* model, const QModelIndex& shapeContainerIndex,
                                   IntensityDataItem* intensityItem)
{
    Q_UNUSED(model);
    Q_UNUSED(shapeContainerIndex);
 
    delete m_selectionModel;
    m_selectionModel = new QItemSelectionModel(model, this);
 
    m_propertyPanel->setItem(intensityItem);
    m_projectionsCanvas->setSelectionModel(m_selectionModel);
    m_projectionsCanvas->setContext(model, shapeContainerIndex, intensityItem);
    m_projectionsWidget->setItem(intensityItem);
 
    m_editorActions->setContext(model, shapeContainerIndex, intensityItem);
    m_editorActions->setSelectionModel(m_selectionModel);
}
 
void ProjectionsEditor::resetContext()
{
    m_propertyPanel->setItem(nullptr);
    m_projectionsCanvas->resetContext();
    m_projectionsWidget->setItem(nullptr);
}
 
QList<QAction*> ProjectionsEditor::topToolbarActions()
{
    return m_editorActions->topToolbarActions();
}
 
void ProjectionsEditor::setup_connections()
{
    // tool panel request is propagated from editorActions to this MaskEditor
    connect(m_editorActions, &ProjectionsEditorActions::resetViewRequest, m_projectionsCanvas,
            &ProjectionsEditorCanvas::onResetViewRequest);
 
    // tool panel request is propagated from editorActions to this MaskEditor
    connect(m_editorActions, &ProjectionsEditorActions::propertyPanelRequest,
            [=]() { m_propertyPanel->setHidden(!m_propertyPanel->isHidden()); });
 
    // selection/drawing activity is propagated from Toolbar to graphics scene
    connect(m_toolbar, &ProjectionsToolbar::activityModeChanged, m_projectionsCanvas,
            &ProjectionsEditorCanvas::onActivityModeChanged);
 
    // selection/drawing activity is propagated from Toolbar to Projections Widget
    connect(m_toolbar, &ProjectionsToolbar::activityModeChanged, m_projectionsWidget,
            &ProjectionsWidget::onActivityModeChanged);
 
    // click on projections tab is propagated to tool bar
    connect(m_projectionsWidget, &ProjectionsWidget::changeActivityRequest, m_toolbar,
            &ProjectionsToolbar::onProjectionTabChange);
 
    // Delete request is propagated from canvas to actions
    connect(m_projectionsCanvas, &ProjectionsEditorCanvas::deleteSelectedRequest, m_editorActions,
            &ProjectionsEditorActions::onDeleteAction);
 
    // space bar push (request for zoom mode) is propagated from graphics view to Toolbar
    connect(m_projectionsCanvas, &ProjectionsEditorCanvas::changeActivityRequest, m_toolbar,
            &ProjectionsToolbar::onChangeActivityRequest);
 
    // ColorMap margins changed, canvas -> projection widget
    connect(m_projectionsCanvas, &ProjectionsEditorCanvas::marginsChanged, m_projectionsWidget,
            &ProjectionsWidget::onMarginsChanged);
 
    m_toolbar->onChangeActivityRequest(MaskEditorFlags::HORIZONTAL_LINE_MODE);
}