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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/View/FitControl/MinimizerEditor.cpp
//! @brief Implements class MinimizerEditor.
//!
//! @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/FitControl/MinimizerEditor.h"
#include "Base/Util/Assert.h"
#include "GUI/Model/Job/JobItem.h"
#include "GUI/Model/Mini/MinimizerItems.h"
#include "GUI/Model/Project/ProjectDocument.h"
#include "GUI/Model/Tune/FitSuiteItem.h"
#include "GUI/View/Base/LayoutUtil.h"
#include "GUI/View/Numeric/ComboUtil.h"
#include "GUI/View/Numeric/DSpinBox.h"
#include "GUI/View/Numeric/NumWidgetUtil.h"
#include <QSpinBox>
#include <QStandardItemModel>
MinimizerEditor::MinimizerEditor(QWidget* parent)
: QWidget(parent)
, m_container_item(nullptr)
, m_main_layout(new QFormLayout(this))
{
setWindowTitle("Minimizer Settings");
m_main_layout->setSpacing(5);
}
void MinimizerEditor::setJobItem(JobItem* job_item)
{
ASSERT(job_item);
setMinContainerItem(job_item->fitSuiteItem()->minimizerContainerItem());
}
void MinimizerEditor::setMinContainerItem(MinimizerContainerItem* container_item)
{
ASSERT(container_item);
GUI::Util::Layout::clearLayout(m_main_layout);
m_updaters.clear();
m_container_item = container_item;
if (!m_container_item)
return;
createGroupedAlgorithmsCombo();
auto* w = new QWidget(this);
m_minimizer_layout = new QFormLayout(w);
m_main_layout->addRow(w);
m_main_layout->addRow("Objective metric:",
GUI::Util::createComboBox(
[this] { return m_container_item->objectiveMetricCombo(); },
[this](const QString& t) {
m_container_item->setCurrentObjectiveMetric(t);
gDoc->setModified();
},
false, &m_updaters,
"Objective metric to use for estimating distance between simulated "
"and experimental data"));
m_main_layout->addRow("Norm function:",
GUI::Util::createComboBox(
[this] { return m_container_item->normFunctionCombo(); },
[this](const QString& t) {
m_container_item->setCurrentNormFunction(t);
gDoc->setModified();
},
false, &m_updaters,
"Normalization to use for estimating distance between simulated and "
"experimental data"));
createMimimizerEdits();
updateUIValues();
}
void MinimizerEditor::createGroupedAlgorithmsCombo()
{
auto* comboBox = new QComboBox;
QStringList list = m_container_item->commonAlgorithmCombo().values();
// list with headers and separators
QVector<qsizetype> header_indices;
QVector<qsizetype> non_separator_indices;
for (const QString& algorithm : list) {
comboBox->addItem(algorithm);
if (!m_container_item->algorithmHasMinimizer(algorithm)) {
comboBox->insertSeparator(comboBox->count() - 1);
qsizetype header_index = comboBox->count() - 1;
header_indices.append(header_index);
non_separator_indices.append(header_index);
auto* model = qobject_cast<QStandardItemModel*>(comboBox->model());
QStandardItem* header_item = model->item(header_index);
header_item->setSelectable(false);
QFont font(comboBox->font());
font.setBold(true);
header_item->setFont(font);
comboBox->insertSeparator(comboBox->count());
} else
non_separator_indices.append(comboBox->count() - 1);
}
comboBox->setCurrentText(m_container_item->commonAlgorithmCombo().currentValue());
// tooltips
QStringList tooltips = m_container_item->commonAlgorithmCombo().toolTips();
ASSERT(tooltips.size() == list.size());
int list_index = 0;
for (int index : non_separator_indices)
comboBox->setItemData(index, tooltips.at(list_index++), Qt::ToolTipRole);
// action
comboBox->setProperty("previous", comboBox->currentIndex());
QObject::connect(comboBox, &QComboBox::currentTextChanged, [this, header_indices, comboBox] {
// skip headers while scrolling
if (header_indices.contains(comboBox->currentIndex())) {
int previous_state = comboBox->property("previous").toInt();
int prev = comboBox->currentIndex() - 2;
int next = comboBox->currentIndex() + 2;
QSignalBlocker b(comboBox);
if (previous_state < comboBox->currentIndex() && next < comboBox->count())
comboBox->setCurrentIndex(next);
else if (previous_state > comboBox->currentIndex() && prev >= 0)
comboBox->setCurrentIndex(prev);
else
comboBox->setCurrentIndex(previous_state);
}
comboBox->setProperty("previous", comboBox->currentIndex());
m_container_item->setCurrentCommonAlgorithm(comboBox->currentText());
createMimimizerEdits();
gDoc->setModified();
});
// update state
m_updaters << [this, comboBox] {
QSignalBlocker b(comboBox);
comboBox->setCurrentText(m_container_item->commonAlgorithmCombo().currentValue());
};
m_main_layout->addRow("Algorithm:", comboBox);
}
void MinimizerEditor::createMimimizerEdits()
{
GUI::Util::Layout::clearLayout(m_minimizer_layout);
// Minuit2
if (m_container_item->currentMinimizer() == minimizerTypeToName(MinimizerType::Minuit2))
createMinuitEdits();
// GSL MultiMin
if (m_container_item->currentMinimizer() == minimizerTypeToName(MinimizerType::GSLMultiMin))
createGSLMultiMinEdits();
// TMVA Genetic
if (m_container_item->currentMinimizer() == minimizerTypeToName(MinimizerType::Genetic))
createTMVAGeneticEdits();
// GSL Simulated Annealing
if (m_container_item->currentMinimizer() == minimizerTypeToName(MinimizerType::GSLSimAn))
createGSLSimulatedAnnealingEdits();
// GSL Levenberg-Marquardt
if (m_container_item->currentMinimizer() == minimizerTypeToName(MinimizerType::GSLLMA))
createGSLLevMarEdits();
}
void MinimizerEditor::createMinuitEdits()
{
MinuitMinimizerItem* minItem = m_container_item->minimizerItemMinuit();
m_minimizer_layout->addRow(
"Strategy:",
GUI::Util::createIntSpinBox([=] { return minItem->strategy(); },
[=](int v) {
minItem->setStrategy(v);
gDoc->setModified();
},
RealLimits::limited(0, 2),
"Minimization strategy (0-low, 1-medium, 2-high quality)"));
GUI::Util::addDoubleSpinBoxRow(m_minimizer_layout, minItem->errorDefinition());
GUI::Util::addDoubleSpinBoxRow(m_minimizer_layout, minItem->tolerance());
GUI::Util::addDoubleSpinBoxRow(m_minimizer_layout, minItem->precision());
m_minimizer_layout->addRow("Max func calls:",
GUI::Util::createIntSpinBox([=] { return minItem->maxFuncCalls(); },
[=](int v) {
minItem->setMaxFuncCalls(v);
gDoc->setModified();
},
RealLimits::nonnegative(),
"Maximum number of function calls"));
}
void MinimizerEditor::createGSLMultiMinEdits()
{
GSLMultiMinimizerItem* minItem = m_container_item->minimizerItemGSLMulti();
m_minimizer_layout->addRow("Max iterations:",
GUI::Util::createIntSpinBox([=] { return minItem->maxIterations(); },
[=](int v) {
minItem->setMaxIterations(v);
gDoc->setModified();
},
RealLimits::nonnegative(),
"Maximum number of iterations"));
}
void MinimizerEditor::createTMVAGeneticEdits()
{
GeneticMinimizerItem* minItem = m_container_item->minimizerItemGenetic();
GUI::Util::addDoubleSpinBoxRow(m_minimizer_layout, minItem->tolerance());
m_minimizer_layout->addRow("Max iterations:",
GUI::Util::createIntSpinBox([=] { return minItem->maxIterations(); },
[=](int v) {
minItem->setMaxIterations(v);
gDoc->setModified();
},
RealLimits::nonnegative(),
"Maximum number of iterations"));
m_minimizer_layout->addRow(
"Population:", GUI::Util::createIntSpinBox([=] { return minItem->populationSize(); },
[=](int v) {
minItem->setPopulationSize(v);
gDoc->setModified();
},
RealLimits::nonnegative(), "Population size"));
m_minimizer_layout->addRow(
"Random seed:",
GUI::Util::createIntSpinBox([=] { return minItem->randomSeed(); },
[=](int v) {
minItem->setRandomSeed(v);
gDoc->setModified();
},
RealLimits::limitless(),
"Initialization of pseudorandom number generator"));
}
void MinimizerEditor::createGSLSimulatedAnnealingEdits()
{
SimAnMinimizerItem* minItem = m_container_item->minimizerItemSimAn();
m_minimizer_layout->addRow(
"Max iterations:", GUI::Util::createIntSpinBox([=] { return minItem->maxIterations(); },
[=](int v) {
minItem->setMaxIterations(v);
gDoc->setModified();
},
RealLimits::nonnegative(),
"Number of points to try for each step"));
m_minimizer_layout->addRow(
"Iterations at T:",
GUI::Util::createIntSpinBox([=] { return minItem->iterationsAtEachTemp(); },
[=](int v) {
minItem->setIterationsAtEachTemp(v);
gDoc->setModified();
},
RealLimits::nonnegative(),
"Number of iterations at each temperature"));
GUI::Util::addDoubleSpinBoxRow(m_minimizer_layout, minItem->stepSize());
GUI::Util::addDoubleSpinBoxRow(m_minimizer_layout, minItem->boltzmanK());
GUI::Util::addDoubleSpinBoxRow(m_minimizer_layout, minItem->boltzmanInitT());
GUI::Util::addDoubleSpinBoxRow(m_minimizer_layout, minItem->boltzmanMu());
GUI::Util::addDoubleSpinBoxRow(m_minimizer_layout, minItem->boltzmanMinT());
}
void MinimizerEditor::createGSLLevMarEdits()
{
GSLLMAMinimizerItem* minItem = m_container_item->minimizerItemGSLLMA();
GUI::Util::addDoubleSpinBoxRow(m_minimizer_layout, minItem->tolerance());
m_minimizer_layout->addRow("Max iterations:",
GUI::Util::createIntSpinBox([=] { return minItem->maxIterations(); },
[=](int v) {
minItem->setMaxIterations(v);
gDoc->setModified();
},
RealLimits::nonnegative(),
"Maximum number of iterations"));
}
void MinimizerEditor::updateUIValues()
{
for (const auto& updater : m_updaters)
updater();
}
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