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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/View/Main/CentralWidget.cpp
//! @brief Implements class CentralWidget.
//!
//! @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/Main/CentralWidget.h"
#include "Base/Util/Assert.h"
#include "GUI/Model/Project/ProjectDocument.h"
#include "GUI/View/Setup/FrameActions.h"
#include "GUI/View/View/DataView.h"
#include "GUI/View/View/InstrumentView.h"
#include "GUI/View/View/JobView.h"
#include "GUI/View/View/SampleView.h"
#include "GUI/View/View/SimulationView.h"
#include <QAction>
#include <QApplication>
#include <QDir>
#include <QOpenGLWidget>
CentralWidget::CentralWidget()
: m_progress_bar(new QProgressBar)
, m_view_selection_buttons(new QButtonGroup(this))
, m_views_stack(new QStackedLayout)
, m_view_selection_buttons_layout(new QVBoxLayout)
, m_projects_view(nullptr)
, m_instrument_view(nullptr)
, m_sample_view(nullptr)
, m_data_view(nullptr)
, m_simulation_view(nullptr)
, m_job_view(nullptr)
{
auto* layout = new QHBoxLayout(this);
layout->setContentsMargins(0, 0, 0, 0);
layout->setSpacing(0);
m_view_selection_buttons_layout->setContentsMargins(0, 0, 0, 0);
m_view_selection_buttons_layout->setSpacing(0);
auto* fillerButton = createViewSelectionButton();
fillerButton->setMinimumSize(5, 5);
fillerButton->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
fillerButton->setEnabled(false);
m_view_selection_buttons_layout->insertWidget(-1, fillerButton);
connect(m_view_selection_buttons, &QButtonGroup::idClicked, this, &CentralWidget::raiseView);
auto* vlayout = new QVBoxLayout;
vlayout->setContentsMargins(0, 0, 0, 0);
vlayout->setSpacing(0);
vlayout->addLayout(m_views_stack);
vlayout->addWidget(new QOpenGLWidget); // quick fix to reset surface format
layout->addLayout(m_view_selection_buttons_layout);
layout->addLayout(vlayout);
m_progress_bar->hide();
m_progress_bar->setTextVisible(false);
m_progress_bar->setFixedHeight(QApplication::fontMetrics().boundingRect("M").height());
m_progress_bar->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Fixed);
m_view_selection_buttons_layout->addWidget(m_progress_bar);
addButton(ViewId::Datafile, QIcon(":/images/view/data.svg"), "Data",
"Import intensity data to fit");
addButton(ViewId::Instrument, QIcon(":/images/view/instrument.svg"), "Instrument",
"Define the beam and the detector");
addButton(ViewId::Sample, QIcon(":/images/view/sample.svg"), "Sample", "Build the sample");
addButton(ViewId::Simulation, QIcon(":/images/view/simulate.svg"), "Simulation",
"Run simulation");
addButton(ViewId::Job, QIcon(":/images/view/job.svg"), "Jobs",
"Switch to see job results, tune parameters real time,\nfit the data");
updateViewSelectionButtonsGeometry();
m_instrument_view = new InstrumentView;
m_sample_view = new SampleView;
m_data_view = new DataView;
m_simulation_view = new SimulationView;
m_job_view = new JobView(m_progress_bar);
m_views_stack->insertWidget(ViewId::Datafile, m_data_view);
m_views_stack->insertWidget(ViewId::Instrument, m_instrument_view);
m_views_stack->insertWidget(ViewId::Sample, m_sample_view);
m_views_stack->insertWidget(ViewId::Simulation, m_simulation_view);
m_views_stack->insertWidget(ViewId::Job, m_job_view);
connect(m_job_view, &JobView::requestSwitchToJobView,
[this]() { m_view_selection_buttons->button(ViewId::Job)->click(); });
m_job_view->switchWidgetsToJob();
}
CentralWidget::~CentralWidget() = default;
QWidget* CentralWidget::currentView() const
{
return m_views_stack->currentWidget();
}
void CentralWidget::raiseView(int viewId)
{
ASSERT(checkViewId(viewId));
if (m_views_stack->currentIndex() != viewId) {
m_views_stack->setCurrentIndex(viewId);
gDoc->setViewId(viewId);
emit currentViewChanged();
}
}
void CentralWidget::restoreView(int viewId)
{
ASSERT(checkViewId(viewId));
m_views_stack->setCurrentIndex(viewId);
m_view_selection_buttons->button(viewId)->setChecked(true);
m_views_stack->currentWidget()->show();
emit currentViewChanged();
}
bool CentralWidget::checkViewId(int viewId) const
{
return viewId >= 0 && viewId < m_views_stack->count();
}
void CentralWidget::updateViews()
{
for (auto* button : m_view_selection_buttons->buttons())
button->setEnabled(true);
if (auto* filler =
m_view_selection_buttons_layout->itemAt(m_view_selection_buttons->buttons().size()))
if (auto* fillerBtn = dynamic_cast<QToolButton*>(filler->widget())) {
fillerBtn->setEnabled(true);
fillerBtn->setCheckable(false);
}
}
void CentralWidget::addButton(ViewId id, const QIcon& icon, const QString& title,
const QString& tooltip)
{
QToolButton* btn = createViewSelectionButton();
btn->setText(title);
btn->setToolTip(tooltip);
btn->setIcon(icon);
btn->setEnabled(false);
m_view_selection_buttons_layout->insertWidget(id, btn);
m_view_selection_buttons->addButton(btn, id);
}
void CentralWidget::updateViewSelectionButtonsGeometry() const
{
if (m_view_selection_buttons->buttons().isEmpty())
return;
const QFontMetrics fontMetrics = m_view_selection_buttons->buttons().first()->fontMetrics();
// Find the maximum text extents
int maxTextWidth = 0;
int maxTextHeight = 0;
for (auto* b : m_view_selection_buttons->buttons()) {
const auto r = fontMetrics.boundingRect(b->text());
maxTextWidth = std::max(maxTextWidth, r.width());
maxTextHeight = std::max(maxTextHeight, r.height());
}
// calculate the button extent by width (width == height!). Ensure an extent of 70 for normal
// DPI devices (legacy value)
const int margin = fontMetrics.boundingRect("M").width();
const int buttonExtent = std::max(70, maxTextWidth + 2 * margin);
// calculate the icon extent by height (width == height!)
const int iconExtent = buttonExtent - margin - maxTextHeight;
// set new values in all buttons
for (auto* b : m_view_selection_buttons->buttons()) {
b->setFixedSize(buttonExtent, buttonExtent);
b->setIconSize({iconExtent, iconExtent});
}
// set fixed width in filler and progress bar
auto* filler =
m_view_selection_buttons_layout->itemAt(m_view_selection_buttons->buttons().size());
if (filler)
if (auto* fillerBtn = dynamic_cast<QToolButton*>(filler->widget()); fillerBtn)
fillerBtn->setFixedWidth(buttonExtent);
m_progress_bar->setFixedWidth(buttonExtent);
}
QToolButton* CentralWidget::createViewSelectionButton() const
{
auto* btn = new QToolButton;
btn->setObjectName("ViewSelectionButton"); // for addressing in style sheet
btn->setCheckable(true);
btn->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
return btn;
}
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