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#include "Visualization/VisualizationSelectionZoneItem.h"
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const QString &DEFAULT_COLOR = QStringLiteral("#E79D41");
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struct VisualizationSelectionZoneItem::VisualizationSelectionZoneItemPrivate {
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QCustomPlot *m_Plot;
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double m_T1 = 0;
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double m_T2 = 0;
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QColor m_Color;
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bool m_IsEditionEnabled = true;
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double m_MovedOrinalT1 = 0;
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double m_MovedOrinalT2 = 0;
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QCPItemStraightLine *m_LeftLine;
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QCPItemStraightLine *m_RightLine;
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QCPItemText *m_NameLabelItem = nullptr;
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enum class EditionMode { NoEdition, ResizeLeft, ResizeRight, Move };
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EditionMode m_CurrentEditionMode;
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QVector<VisualizationSelectionZoneItem *> m_AssociatedEditedZones;
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VisualizationSelectionZoneItemPrivate(QCustomPlot *plot)
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: m_Plot(plot), m_Color(Qt::blue), m_CurrentEditionMode(EditionMode::NoEdition)
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{
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}
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void updatePosition(VisualizationSelectionZoneItem *item)
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{
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item->topLeft->setCoords(m_T1, 0);
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item->bottomRight->setCoords(m_T2, 1);
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}
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EditionMode getEditionMode(const QPoint &pos, const VisualizationSelectionZoneItem *zoneItem)
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{
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auto distanceLeft = m_LeftLine->selectTest(pos, false);
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auto distanceRight = m_RightLine->selectTest(pos, false);
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auto distance = zoneItem->selectTest(pos, false);
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if (distanceRight <= distance) {
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return VisualizationSelectionZoneItemPrivate::EditionMode::ResizeRight;
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}
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else if (distanceLeft <= distance) {
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return VisualizationSelectionZoneItemPrivate::EditionMode::ResizeLeft;
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}
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return VisualizationSelectionZoneItemPrivate::EditionMode::Move;
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}
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double pixelSizeToAxisXSize(double pixels)
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{
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auto axis = m_Plot->axisRect()->axis(QCPAxis::atBottom);
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return axis->pixelToCoord(pixels) - axis->pixelToCoord(0);
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}
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};
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VisualizationSelectionZoneItem::VisualizationSelectionZoneItem(QCustomPlot *plot)
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: QCPItemRect(plot),
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impl{spimpl::make_unique_impl<VisualizationSelectionZoneItemPrivate>(plot)}
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{
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topLeft->setTypeX(QCPItemPosition::ptPlotCoords);
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topLeft->setTypeY(QCPItemPosition::ptAxisRectRatio);
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bottomRight->setTypeX(QCPItemPosition::ptPlotCoords);
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bottomRight->setTypeY(QCPItemPosition::ptAxisRectRatio);
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setSelectable(false);
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impl->m_RightLine = new QCPItemStraightLine(plot);
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impl->m_RightLine->point1->setParentAnchor(topRight);
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impl->m_RightLine->point2->setParentAnchor(bottomRight);
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impl->m_RightLine->point1->setTypeX(QCPItemPosition::ptAbsolute);
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impl->m_RightLine->point1->setTypeY(QCPItemPosition::ptAbsolute);
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impl->m_RightLine->point2->setTypeX(QCPItemPosition::ptAbsolute);
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impl->m_RightLine->point2->setTypeY(QCPItemPosition::ptAbsolute);
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impl->m_RightLine->setSelectable(false);
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impl->m_LeftLine = new QCPItemStraightLine(plot);
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impl->m_LeftLine->point1->setParentAnchor(topLeft);
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impl->m_LeftLine->point2->setParentAnchor(bottomLeft);
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impl->m_LeftLine->point1->setTypeX(QCPItemPosition::ptAbsolute);
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impl->m_LeftLine->point1->setTypeY(QCPItemPosition::ptAbsolute);
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impl->m_LeftLine->point2->setTypeX(QCPItemPosition::ptAbsolute);
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impl->m_LeftLine->point2->setTypeY(QCPItemPosition::ptAbsolute);
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impl->m_LeftLine->setSelectable(false);
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connect(this, &VisualizationSelectionZoneItem::selectionChanged, impl->m_RightLine,
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&QCPItemStraightLine::setSelected);
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connect(this, &VisualizationSelectionZoneItem::selectionChanged, impl->m_LeftLine,
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&QCPItemStraightLine::setSelected);
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setColor(QColor(DEFAULT_COLOR));
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}
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VisualizationSelectionZoneItem::~VisualizationSelectionZoneItem()
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{
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impl->m_Plot->removeItem(impl->m_RightLine);
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impl->m_Plot->removeItem(impl->m_LeftLine);
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}
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void VisualizationSelectionZoneItem::setName(const QString &name)
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{
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if (name.isEmpty() && impl->m_NameLabelItem) {
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impl->m_Plot->removeItem(impl->m_NameLabelItem);
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impl->m_NameLabelItem = nullptr;
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}
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else if (!impl->m_NameLabelItem) {
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impl->m_NameLabelItem = new QCPItemText(impl->m_Plot);
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impl->m_NameLabelItem->setText(name);
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impl->m_NameLabelItem->setPositionAlignment(Qt::AlignHCenter | Qt::AlignTop);
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impl->m_NameLabelItem->setColor(impl->m_Color);
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impl->m_NameLabelItem->position->setParentAnchor(top);
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}
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}
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QString VisualizationSelectionZoneItem::name() const
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{
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if (!impl->m_NameLabelItem) {
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return QString();
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}
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return impl->m_NameLabelItem->text();
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}
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SqpRange VisualizationSelectionZoneItem::range() const
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{
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SqpRange range;
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range.m_TStart = impl->m_T1 <= impl->m_T2 ? impl->m_T1 : impl->m_T2;
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range.m_TEnd = impl->m_T1 > impl->m_T2 ? impl->m_T1 : impl->m_T2;
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return range;
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}
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void VisualizationSelectionZoneItem::setRange(double tstart, double tend)
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{
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impl->m_T1 = tstart;
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impl->m_T2 = tend;
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impl->updatePosition(this);
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}
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void VisualizationSelectionZoneItem::setStart(double tstart)
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{
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impl->m_T1 = tstart;
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impl->updatePosition(this);
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}
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void VisualizationSelectionZoneItem::setEnd(double tend)
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{
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impl->m_T2 = tend;
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impl->updatePosition(this);
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}
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void VisualizationSelectionZoneItem::setColor(const QColor &color)
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{
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impl->m_Color = color;
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auto brushColor = color;
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brushColor.setAlpha(80);
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setBrush(QBrush(brushColor));
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setPen(QPen(Qt::NoPen));
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auto selectedBrushColor = brushColor;
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selectedBrushColor.setAlpha(150);
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setSelectedBrush(QBrush(selectedBrushColor));
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setSelectedPen(QPen(Qt::NoPen));
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auto linePen = QPen(color);
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linePen.setStyle(Qt::SolidLine);
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linePen.setWidth(4);
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auto selectedLinePen = linePen;
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selectedLinePen.setColor(color.darker(120));
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selectedLinePen.setWidth(4);
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impl->m_LeftLine->setPen(linePen);
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impl->m_RightLine->setPen(linePen);
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impl->m_LeftLine->setSelectedPen(selectedLinePen);
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impl->m_RightLine->setSelectedPen(selectedLinePen);
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}
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void VisualizationSelectionZoneItem::setEditionEnabled(bool value)
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{
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impl->m_IsEditionEnabled = value;
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setSelectable(value);
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if (!value) {
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setSelected(false);
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impl->m_CurrentEditionMode = VisualizationSelectionZoneItemPrivate::EditionMode::NoEdition;
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}
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}
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bool VisualizationSelectionZoneItem::isEditionEnabled() const
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{
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return impl->m_IsEditionEnabled;
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}
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Qt::CursorShape
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VisualizationSelectionZoneItem::curshorShapeForPosition(const QPoint &position) const
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{
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auto mode = impl->m_CurrentEditionMode
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== VisualizationSelectionZoneItemPrivate::EditionMode::NoEdition
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? impl->getEditionMode(position, this)
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: impl->m_CurrentEditionMode;
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switch (mode) {
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case VisualizationSelectionZoneItemPrivate::EditionMode::Move:
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return Qt::SizeAllCursor;
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case VisualizationSelectionZoneItemPrivate::EditionMode::ResizeLeft:
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case VisualizationSelectionZoneItemPrivate::EditionMode::ResizeRight: // fallthrough
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return Qt::SizeHorCursor;
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default:
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return Qt::ArrowCursor;
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}
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}
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void VisualizationSelectionZoneItem::setHovered(bool value)
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{
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if (value) {
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auto linePen = impl->m_LeftLine->pen();
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linePen.setStyle(Qt::DotLine);
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linePen.setWidth(3);
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auto selectedLinePen = impl->m_LeftLine->selectedPen();
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;
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selectedLinePen.setStyle(Qt::DotLine);
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selectedLinePen.setWidth(3);
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impl->m_LeftLine->setPen(linePen);
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impl->m_RightLine->setPen(linePen);
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impl->m_LeftLine->setSelectedPen(selectedLinePen);
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impl->m_RightLine->setSelectedPen(selectedLinePen);
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}
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else {
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setColor(impl->m_Color);
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}
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}
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void VisualizationSelectionZoneItem::setAssociatedEditedZones(
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const QVector<VisualizationSelectionZoneItem *> &associatedZones)
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{
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impl->m_AssociatedEditedZones = associatedZones;
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impl->m_AssociatedEditedZones.removeAll(this);
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}
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void VisualizationSelectionZoneItem::mousePressEvent(QMouseEvent *event, const QVariant &details)
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{
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if (isEditionEnabled() && event->button() == Qt::LeftButton) {
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impl->m_CurrentEditionMode = impl->getEditionMode(event->pos(), this);
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impl->m_MovedOrinalT1 = impl->m_T1;
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impl->m_MovedOrinalT2 = impl->m_T2;
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for (auto associatedZone : impl->m_AssociatedEditedZones) {
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associatedZone->impl->m_MovedOrinalT1 = associatedZone->impl->m_T1;
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associatedZone->impl->m_MovedOrinalT2 = associatedZone->impl->m_T2;
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}
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}
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else {
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impl->m_CurrentEditionMode = VisualizationSelectionZoneItemPrivate::EditionMode::NoEdition;
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event->ignore();
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}
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}
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void VisualizationSelectionZoneItem::mouseMoveEvent(QMouseEvent *event, const QPointF &startPos)
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{
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if (isEditionEnabled()) {
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auto axis = impl->m_Plot->axisRect()->axis(QCPAxis::atBottom);
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auto pixelDiff = event->pos().x() - startPos.x();
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auto diff = impl->pixelSizeToAxisXSize(pixelDiff);
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switch (impl->m_CurrentEditionMode) {
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case VisualizationSelectionZoneItemPrivate::EditionMode::Move:
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setRange(impl->m_MovedOrinalT1 + diff, impl->m_MovedOrinalT2 + diff);
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for (auto associatedZone : impl->m_AssociatedEditedZones) {
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associatedZone->move(pixelDiff);
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}
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break;
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case VisualizationSelectionZoneItemPrivate::EditionMode::ResizeLeft:
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setStart(impl->m_MovedOrinalT1 + diff);
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for (auto associatedZone : impl->m_AssociatedEditedZones) {
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impl->m_MovedOrinalT1 < impl->m_MovedOrinalT2
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? associatedZone->resizeLeft(pixelDiff)
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: associatedZone->resizeRight(pixelDiff);
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}
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break;
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case VisualizationSelectionZoneItemPrivate::EditionMode::ResizeRight:
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setEnd(impl->m_MovedOrinalT2 + diff);
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for (auto associatedZone : impl->m_AssociatedEditedZones) {
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impl->m_MovedOrinalT1 < impl->m_MovedOrinalT2
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? associatedZone->resizeRight(pixelDiff)
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: associatedZone->resizeLeft(pixelDiff);
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}
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break;
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default:
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break;
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}
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for (auto associatedZone : impl->m_AssociatedEditedZones) {
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associatedZone->parentPlot()->replot();
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}
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}
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else {
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event->ignore();
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}
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}
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void VisualizationSelectionZoneItem::mouseReleaseEvent(QMouseEvent *event, const QPointF &startPos)
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{
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if (isEditionEnabled()) {
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impl->m_CurrentEditionMode = VisualizationSelectionZoneItemPrivate::EditionMode::NoEdition;
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}
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else {
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event->ignore();
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}
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impl->m_AssociatedEditedZones.clear();
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}
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void VisualizationSelectionZoneItem::resizeLeft(double pixelDiff)
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{
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auto diff = impl->pixelSizeToAxisXSize(pixelDiff);
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if (impl->m_MovedOrinalT1 <= impl->m_MovedOrinalT2) {
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setStart(impl->m_MovedOrinalT1 + diff);
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}
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else {
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setEnd(impl->m_MovedOrinalT2 + diff);
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}
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}
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void VisualizationSelectionZoneItem::resizeRight(double pixelDiff)
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{
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auto diff = impl->pixelSizeToAxisXSize(pixelDiff);
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if (impl->m_MovedOrinalT1 > impl->m_MovedOrinalT2) {
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setStart(impl->m_MovedOrinalT1 + diff);
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}
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else {
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setEnd(impl->m_MovedOrinalT2 + diff);
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}
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}
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void VisualizationSelectionZoneItem::move(double pixelDiff)
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{
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auto diff = impl->pixelSizeToAxisXSize(pixelDiff);
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setRange(impl->m_MovedOrinalT1 + diff, impl->m_MovedOrinalT2 + diff);
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}
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