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#include "Visualization/ColorScaleEditor.h"
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#include "Visualization/SqpColorScale.h"
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#include "ui_ColorScaleEditor.h"
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namespace {
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const auto GRADIENTS = QVariantMap{{"Candy", QCPColorGradient::gpCandy},
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{"Cold", QCPColorGradient::gpCold},
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{"Geography", QCPColorGradient::gpGeography},
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{"Grayscale", QCPColorGradient::gpGrayscale},
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{"Hot", QCPColorGradient::gpHot},
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{"Hues", QCPColorGradient::gpHues},
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{"Ion", QCPColorGradient::gpIon},
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{"Jet", QCPColorGradient::gpJet},
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{"Night", QCPColorGradient::gpNight},
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{"Polar", QCPColorGradient::gpPolar},
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{"Spectrum", QCPColorGradient::gpSpectrum},
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{"Thermal", QCPColorGradient::gpThermal}};
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} // namespace
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ColorScaleEditor::ColorScaleEditor(SqpColorScale &scale, QWidget *parent)
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: QDialog{parent},
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ui{new Ui::ColorScaleEditor},
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m_ThresholdGroup{new QButtonGroup{this}},
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m_Scale{scale}
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{
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ui->setupUi(this);
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// Inits gradient combobox content
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for (auto it = GRADIENTS.begin(), end = GRADIENTS.end(); it != end; ++it) {
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ui->gradientComboBox->addItem(it.key(), it.value());
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}
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// Creates threshold group
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m_ThresholdGroup->addButton(ui->thresholdAutoButton);
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m_ThresholdGroup->addButton(ui->thresholdManualButton);
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// Inits min/max spinboxes' properties
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auto setSpinBoxProperties = [](auto &spinBox) {
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spinBox.setDecimals(3);
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spinBox.setMinimum(-std::numeric_limits<double>::max());
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spinBox.setMaximum(std::numeric_limits<double>::max());
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};
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setSpinBoxProperties(*ui->minSpinBox);
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setSpinBoxProperties(*ui->maxSpinBox);
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// Creates color scale preview
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m_PreviewScale = new QCPColorScale{ui->plot};
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m_PreviewScale->setType(QCPAxis::atTop);
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m_PreviewScale->setMinimumMargins(QMargins{5, 5, 5, 5});
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m_PreviewScale->axis()->setScaleType(QCPAxis::stLogarithmic);
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m_PreviewScale->axis()->setNumberPrecision(0);
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m_PreviewScale->axis()->setNumberFormat("eb");
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m_PreviewScale->axis()->setTicker(QSharedPointer<QCPAxisTickerLog>::create());
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m_PreviewScale->setGradient(QCPColorGradient{QCPColorGradient::gpJet});
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ui->plot->plotLayout()->clear();
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ui->plot->plotLayout()->insertRow(0);
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ui->plot->plotLayout()->addElement(0, 0, m_PreviewScale);
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// Inits connections
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connect(ui->gradientComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updatePreview()));
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connect(ui->thresholdAutoButton, SIGNAL(toggled(bool)), this, SLOT(onThresholdChanged(bool)));
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connect(ui->thresholdManualButton, SIGNAL(toggled(bool)), this, SLOT(onThresholdChanged(bool)));
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connect(ui->minSpinBox, SIGNAL(editingFinished()), this, SLOT(onMinChanged()));
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connect(ui->maxSpinBox, SIGNAL(editingFinished()), this, SLOT(onMaxChanged()));
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// OK/cancel buttons
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connect(ui->okButton, SIGNAL(clicked(bool)), this, SLOT(accept()));
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connect(ui->cancelButton, SIGNAL(clicked(bool)), this, SLOT(reject()));
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// Loads color scale
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loadScale();
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}
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ColorScaleEditor::~ColorScaleEditor() noexcept
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{
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delete ui;
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}
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void ColorScaleEditor::loadScale()
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{
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// Gradient
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auto gradientPresetIndex = ui->gradientComboBox->findData(m_Scale.m_GradientPreset);
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ui->gradientComboBox->setCurrentIndex(gradientPresetIndex);
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// Threshold mode
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(m_Scale.m_AutomaticThreshold ? ui->thresholdAutoButton : ui->thresholdManualButton)
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->setChecked(true);
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// Min/max
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auto qcpColorScale = m_Scale.m_Scale;
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auto range = qcpColorScale->dataRange();
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ui->minSpinBox->setValue(range.lower);
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ui->maxSpinBox->setValue(range.upper);
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updatePreview();
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}
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void ColorScaleEditor::saveScale()
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{
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auto qcpColorScale = m_Scale.m_Scale;
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// Gradient
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auto gradientPreset
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= ui->gradientComboBox->currentData().value<QCPColorGradient::GradientPreset>();
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qcpColorScale->setGradient(gradientPreset);
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m_Scale.m_GradientPreset = gradientPreset;
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// Threshold mode
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m_Scale.m_AutomaticThreshold = ui->thresholdAutoButton->isChecked();
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// Min/max
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qcpColorScale->setDataRange(QCPRange{ui->minSpinBox->value(), ui->maxSpinBox->value()});
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}
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void ColorScaleEditor::accept()
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{
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saveScale();
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QDialog::accept();
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}
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void ColorScaleEditor::onMaxChanged()
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{
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// Ensures that max >= min
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auto maxValue = ui->maxSpinBox->value();
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if (maxValue < ui->minSpinBox->value()) {
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ui->minSpinBox->setValue(maxValue);
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}
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updatePreview();
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}
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void ColorScaleEditor::onMinChanged()
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{
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// Ensures that min <= max
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auto minValue = ui->minSpinBox->value();
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if (minValue > ui->maxSpinBox->value()) {
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ui->maxSpinBox->setValue(minValue);
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}
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updatePreview();
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}
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void ColorScaleEditor::onThresholdChanged(bool checked)
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{
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if (checked) {
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auto isAutomatic = ui->thresholdAutoButton == m_ThresholdGroup->checkedButton();
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ui->minSpinBox->setEnabled(!isAutomatic);
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ui->maxSpinBox->setEnabled(!isAutomatic);
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}
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}
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void ColorScaleEditor::updatePreview()
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{
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m_PreviewScale->setDataRange(QCPRange{ui->minSpinBox->value(), ui->maxSpinBox->value()});
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m_PreviewScale->setGradient(
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ui->gradientComboBox->currentData().value<QCPColorGradient::GradientPreset>());
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ui->plot->replot();
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}
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