#include "nmWxPropertyInterpolationDlg.h"

#include <QAbstractItemView>
#include <QApplication>
#include <QCheckBox>
#include <QComboBox>
#include <QCoreApplication>
#include <QDoubleSpinBox>
#include <QEvent>
#include <QFormLayout>
#include <QGroupBox>
#include <QHBoxLayout>
#include <QHeaderView>
#include <QIcon>
#include <QGridLayout>
#include <QLabel>
#include <QLineEdit>
#include <QMessageBox>
#include <QMouseEvent>
#include <QPainter>
#include <QPolygonF>
#include <QPushButton>
#include <QSize>
#include <QTableWidget>
#include <QTableWidgetItem>
#include <QTimer>
#include <QTransform>
#include <QVBoxLayout>
#include <QWidget>
#include <QtCore/qmath.h>

#include "nmCalculationUtils.h"
#include "nmDataOutline.h"
#include "nmGuiPlot.h"
#include "nmObjPoint.h"
#include "nmObjPointWell.h"
#include "nmWxPropertyInterpolationPreviewDlg.h"
#include "iUnitGroup.h"
#include "iUnitHelper.h"
#include "tCurvePlotView.h"
#include "ZxDataWell.h"
#include "ZxObjText.h"
#include "ZxPlot.h"

namespace
{
// 表格第0行保留给单位，实际测点从第1行开始.
const int POINT_UNIT_ROW = 0;
const int FIRST_POINT_ROW = 1;
// 坐标和厚度以m保存，渗透率以D保存但默认使用mD显示.
const char* LENGTH_BASE_UNIT = "m";
const char* PERMEABILITY_BASE_UNIT = "D";
const char* PERMEABILITY_DISPLAY_UNIT = "mD";

// 使用独立翻译上下文，便于统一维护对话框文本.
QString interpolationText(const char* sourceText)
{
    return QCoreApplication::translate("nmWxPropertyInterpolationDlg", sourceText);
}

// 创建统一格式的非负数值输入框.
QDoubleSpinBox* createNumberSpinBox(QWidget* parent, double value)
{
    QDoubleSpinBox* spinBox = new QDoubleSpinBox(parent);
    spinBox->setRange(0.0, 1.0e12);
    spinBox->setDecimals(6);
    spinBox->setValue(value);
    spinBox->setButtonSymbols(QAbstractSpinBox::NoButtons);
    return spinBox;
}

QString propertyBaseUnit(const QString& property)
{
    // 孔隙度为无量纲量，返回空单位后界面会禁用对应单位下拉框.
    if(property == "k") {
        return PERMEABILITY_BASE_UNIT;
    }
    if(property == "h") {
        return LENGTH_BASE_UNIT;
    }
    return QString();
}

QString defaultPropertyDisplayUnit(const QString& property)
{
    // 渗透率采用工程中常用的mD显示，其余属性默认显示基准单位.
    if(property == "k") {
        return PERMEABILITY_DISPLAY_UNIT;
    }
    return propertyBaseUnit(property);
}

QString unitGroupLookupUnit(const QString& unit)
{
    // D与时间单位d仅大小写不同，使用唯一的mD定位渗透率单位组.
    return unit == PERMEABILITY_BASE_UNIT ?
                QString(PERMEABILITY_DISPLAY_UNIT) : unit;
}

bool convertUnitValue(double sourceValue,
                      const QString& sourceUnit,
                      const QString& destinationUnit,
                      double& destinationValue)
{
    if(sourceUnit == destinationUnit ||
            (sourceUnit.isEmpty() && destinationUnit.isEmpty())) {
        destinationValue = sourceValue;
        return true;
    }
    if(sourceUnit.isEmpty() || destinationUnit.isEmpty()) {
        return false;
    }

    // 复用框架单位表完成换算，不在插值模块中维护独立换算系数.
    iUnitGroup* unitGroup = iUnitHelper::getUnitGroupByUnit(
                unitGroupLookupUnit(sourceUnit));
    if(unitGroup == NULL || unitGroup->indexOf(destinationUnit) < 0) {
        return false;
    }

    int digit = 6;
    return unitGroup->convert(sourceUnit, sourceValue,
                              destinationUnit, destinationValue, digit);
}

double convertedUnitValue(double sourceValue,
                          const QString& sourceUnit,
                          const QString& destinationUnit)
{
    double destinationValue = sourceValue;
    convertUnitValue(sourceValue, sourceUnit,
                     destinationUnit, destinationValue);
    return destinationValue;
}

QString displayValueText(double value)
{
    // 表格使用较高有效位数，减少多次显示和回写造成的精度损失.
    return QString::number(value, 'g', 15);
}

void populateUnitCombo(QComboBox* comboBox,
                       const QString& baseUnit,
                       const QString& selectedUnit)
{
    if(comboBox == NULL) {
        return;
    }

    // 单位列表从全局单位表加载，屏蔽信号可避免初始化过程反向修改数据.
    bool oldBlock = comboBox->blockSignals(true);
    comboBox->clear();
    if(baseUnit.isEmpty()) {
        comboBox->addItem(QString());
        comboBox->setCurrentIndex(0);
        comboBox->setEnabled(false);
        comboBox->blockSignals(oldBlock);
        return;
    }

    const QString lookupUnit = unitGroupLookupUnit(baseUnit);
    QStringList units;
    iUnitGroup* unitGroup = iUnitHelper::getUnitGroupByUnit(lookupUnit);
    if(unitGroup != NULL) {
        units = unitGroup->getAllUnitNames();
    }
    if(units.isEmpty()) {
        units.append(baseUnit);
    }
    comboBox->addItems(units);

    int selectedIndex = comboBox->findText(selectedUnit);
    if(selectedIndex < 0) {
        selectedIndex = comboBox->findText(lookupUnit);
    }
    if(selectedIndex < 0) {
        selectedIndex = comboBox->findText(baseUnit);
    }
    comboBox->setCurrentIndex(selectedIndex < 0 ? 0 : selectedIndex);
    comboBox->setEnabled(true);
    comboBox->blockSignals(oldBlock);
}

void setTableUnitComboStyle(QComboBox* comboBox)
{
    if(comboBox == NULL) {
        return;
    }

    // 仅借用可编辑模式调整文字对齐，输入区域仍设置为只读.
    comboBox->setEditable(true);
    comboBox->lineEdit()->setAlignment(Qt::AlignCenter);
    comboBox->lineEdit()->setReadOnly(true);
    comboBox->setStyleSheet(
                "QComboBox { border: none; background: transparent; padding-left: 4px; }"
                "QComboBox::drop-down { border: none; }");
}

// 插值测点使用独立的小方块标记，避免与井图元混淆.
class PropertyInterpolationMarker : public nmObjPoint
{
public:
    PropertyInterpolationMarker(const QString& name,
                                ZxSubAxisX* axisX,
                                ZxSubAxisY* axisY)
        : nmObjPoint(name, axisX, axisY)
    {
        setDotRadius(1.0);
    }

    virtual bool drawWellPos(QPainter* painter, QPointF point) override
    {
        if(painter == NULL) {
            return false;
        }

        const QTransform transform = painter->combinedTransform();
        qreal scaleX = qAbs(transform.m11());
        qreal scaleY = qAbs(transform.m22());

        if(scaleX < 0.0001) {
            scaleX = 1.0;
        }

        if(scaleY < 0.0001) {
            scaleY = 1.0;
        }

        const qreal halfPixelSize = 3.0;
        QRectF markerRect(point.x() - halfPixelSize / scaleX,
                          point.y() - halfPixelSize / scaleY,
                          halfPixelSize * 2.0 / scaleX,
                          halfPixelSize * 2.0 / scaleY);

        painter->save();
        QPen pen(QColor(0, 25, 100));
        pen.setWidthF(1.0);
        pen.setCosmetic(true);
        painter->setPen(pen);
        painter->setBrush(QColor(0, 70, 200));
        painter->drawRect(markerRect);
        painter->restore();
        return true;
    }
};

void setMarkerLabel(nmObjPoint* marker, const QString& text)
{
    if(marker == NULL || marker->getChildren().isEmpty()) {
        return;
    }

    ZxObjText* label = dynamic_cast<ZxObjText*>(marker->at(0));
    if(label != NULL) {
        label->setText(text);
        label->setTextColor(QColor(30, 30, 30));
    }
}

// 将储层边界转换成预览裁剪使用的多边形，并计算规则采样范围.
bool createPreviewOutline(nmDataOutline* outline,
                          QVector<QPointF>& outlinePoints,
                          QRectF& bounds)
{
    outlinePoints.clear();
    bounds = QRectF();
    if(outline == NULL) {
        return false;
    }

    if(outline->getOutlineType() == NM_Round_Outline_Type) {
        // 圆形边界离散成多边形，便于预览窗口统一裁剪.
        const QPointF center = outline->getCenter();
        const double radius = outline->getRadius();
        if(radius <= 0.0) {
            return false;
        }

        const int segmentCount = 72;
        const double fullCircle = 6.28318530717958647692;
        for(int i = 0; i < segmentCount; ++i) {
            const double angle = fullCircle * i / segmentCount;
            outlinePoints.append(QPointF(center.x() + radius * qCos(angle),
                                         center.y() + radius * qSin(angle)));
        }
    } else {
        outlinePoints = outline->getOutlinePoints();
        if(outlinePoints.size() > 3 &&
                outlinePoints.first() == outlinePoints.last()) {
            outlinePoints.remove(outlinePoints.size() - 1);
        }
    }

    if(outlinePoints.size() < 3) {
        return false;
    }

    bounds = QPolygonF(outlinePoints).boundingRect().normalized();
    return bounds.width() > 0.0 && bounds.height() > 0.0;
}
}

nmWxPropertyInterpolationDlg::nmWxPropertyInterpolationDlg(
        nmGuiPlot* plot,
        nmDataAnalyzeManager* dataManager,
        QWidget* parent)
    : iDlgBase(parent),
      m_pPlot(plot),
      m_pDataManager(dataManager),
      m_pDataSetCombo(NULL),
      m_pAddDataSetButton(NULL),
      m_pDeleteDataSetButton(NULL),
      m_nCurrentDataSetIndex(-1),
      m_nNextPointId(0),
      m_bUpdatingUi(true),
      m_pPropertyCombo(NULL),
      m_pNameEdit(NULL),
      m_pNewValueSpin(NULL),
      m_pNewValueUnitCombo(NULL),
      m_pMapPickButton(NULL),
      m_pPointTable(NULL),
      m_pXUnitCombo(NULL),
      m_pYUnitCombo(NULL),
      m_pValueUnitCombo(NULL),
      m_pDeletePointButton(NULL),
      m_pClearPointsButton(NULL),
      m_pShowPointsCheck(NULL),
      m_pShowLabelsCheck(NULL),
      m_pNuggetSpin(NULL),
      m_pSillSpin(NULL),
      m_pRangeSpin(NULL),
      m_pRangeUnitCombo(NULL),
      m_pModelCombo(NULL),
      m_pUseKCheck(NULL),
      m_pKCalculationDataSetCombo(NULL),
      m_pUsePhiCheck(NULL),
      m_pPhiCalculationDataSetCombo(NULL),
      m_pUseHCheck(NULL),
      m_pHCalculationDataSetCombo(NULL),
      m_pPreviewButton(NULL),
      m_pPreviewDialog(NULL),
      m_pPreviewRefreshTimer(NULL)
{
    setWindowTitle(interpolationText("Property Interpolation"));
    setWindowModality(Qt::NonModal);
    setModal(false);
    setMinimumSize(600, 620);
    resize(640, 680);

    // 合并连续编辑触发的刷新，避免每次数值变化都立即重新插值.
    m_pPreviewRefreshTimer = new QTimer(this);
    m_pPreviewRefreshTimer->setSingleShot(true);
    m_pPreviewRefreshTimer->setInterval(200);
    connect(m_pPreviewRefreshTimer, SIGNAL(timeout()),
            this, SLOT(refreshPreview()));

    initInterpolationUI();
    initializeDataSets();

    if(qApp != NULL) {
        qApp->installEventFilter(this);
    }
}

nmWxPropertyInterpolationDlg::~nmWxPropertyInterpolationDlg()
{
    if(qApp != NULL) {
        qApp->removeEventFilter(this);
    }

    onMapPickToggled(false);
    saveCurrentDataSet();
    syncDataSetsToManager(false);
    removeAllMarkers();
}

void nmWxPropertyInterpolationDlg::initInterpolationUI()
{
    const int topControlWidth = 350;
    const int compactComboWidth = 200;

    QVBoxLayout* mainLayout = new QVBoxLayout(this);
    mainLayout->setContentsMargins(12, 10, 12, 10);
    mainLayout->setSpacing(8);

    // 数据组、名称和属性共用一个表单，保证三行标签及输入控件对齐.
    QFormLayout* dataSetLayout = new QFormLayout;
    dataSetLayout->setContentsMargins(0, 0, 0, 0);
    dataSetLayout->setHorizontalSpacing(8);
    dataSetLayout->setVerticalSpacing(6);
    dataSetLayout->setFieldGrowthPolicy(QFormLayout::AllNonFixedFieldsGrow);

    QWidget* dataSetSelectWidget = new QWidget(this);
    dataSetSelectWidget->setMaximumWidth(topControlWidth);
    QHBoxLayout* dataSetSelectLayout = new QHBoxLayout(dataSetSelectWidget);
    dataSetSelectLayout->setContentsMargins(0, 0, 0, 0);
    dataSetSelectLayout->setSpacing(6);
    m_pDataSetCombo = new QComboBox(dataSetSelectWidget);
    dataSetSelectLayout->addWidget(m_pDataSetCombo, 1);

    QString iconDir = QCoreApplication::applicationDirPath();
    iconDir = iconDir.section('/', 0, -2) + "/Res/Icon/";

    m_pAddDataSetButton = new QPushButton(dataSetSelectWidget);
    m_pAddDataSetButton->setIcon(QIcon(iconDir + "Add.png"));
    m_pAddDataSetButton->setIconSize(QSize(18, 18));
    m_pAddDataSetButton->setFixedSize(28, 28);
    m_pAddDataSetButton->setToolTip(interpolationText("Add dataset"));
    dataSetSelectLayout->addWidget(m_pAddDataSetButton);

    m_pDeleteDataSetButton = new QPushButton(dataSetSelectWidget);
    m_pDeleteDataSetButton->setIcon(QIcon(iconDir + "NmDelete.png"));
    m_pDeleteDataSetButton->setIconSize(QSize(18, 18));
    m_pDeleteDataSetButton->setFixedSize(28, 28);
    m_pDeleteDataSetButton->setToolTip(interpolationText("Delete dataset"));
    dataSetSelectLayout->addWidget(m_pDeleteDataSetButton);
    dataSetLayout->addRow(interpolationText("Dataset:"), dataSetSelectWidget);

    m_pNameEdit = new QLineEdit(this);
    m_pNameEdit->setMaximumWidth(topControlWidth);
    dataSetLayout->addRow(interpolationText("Name:"), m_pNameEdit);

    m_pPropertyCombo = new QComboBox(this);
    m_pPropertyCombo->setMaximumWidth(topControlWidth);
    m_pPropertyCombo->addItem(interpolationText("Permeability k"), QString("k"));
    m_pPropertyCombo->addItem(interpolationText("Porosity phi"), QString("phi"));
    m_pPropertyCombo->addItem(interpolationText("Reservoir thickness h"), QString("h"));
    dataSetLayout->addRow(interpolationText("Property:"), m_pPropertyCombo);
    mainLayout->addLayout(dataSetLayout);

    // 测点数据录入区域.
    QGroupBox* pointGroup = new QGroupBox(interpolationText("Measurement Points"), this);
    QVBoxLayout* pointLayout = new QVBoxLayout(pointGroup);
    pointLayout->setContentsMargins(10, 8, 10, 10);
    pointLayout->setSpacing(6);

    QHBoxLayout* newPointLayout = new QHBoxLayout;
    newPointLayout->setSpacing(6);
    newPointLayout->addWidget(new QLabel(interpolationText("New value:"), pointGroup));
    m_pNewValueSpin = createNumberSpinBox(pointGroup, 0.0);
    newPointLayout->addWidget(m_pNewValueSpin, 1);
    m_pNewValueUnitCombo = new QComboBox(pointGroup);
    m_pNewValueUnitCombo->setFixedWidth(80);
    populateUnitCombo(m_pNewValueUnitCombo,
                      PERMEABILITY_BASE_UNIT, PERMEABILITY_DISPLAY_UNIT);
    newPointLayout->addWidget(m_pNewValueUnitCombo);
    m_pMapPickButton = new QPushButton(interpolationText("Select on Map"), pointGroup);
    m_pMapPickButton->setIcon(QIcon(iconDir + "AddPoint.png"));
    m_pMapPickButton->setIconSize(QSize(16, 16));
    m_pMapPickButton->setMinimumWidth(100);
    m_pMapPickButton->setCheckable(true);
    m_pMapPickButton->setEnabled(!m_pPlot.isNull() &&
                                 m_pPlot->m_pPlotView != NULL &&
                                 m_pPlot->m_pPlot != NULL);
    newPointLayout->addWidget(m_pMapPickButton);
    pointLayout->addLayout(newPointLayout);

    m_pPointTable = new QTableWidget(1, 3, pointGroup);
    QStringList headers;
    headers << interpolationText("X") << interpolationText("Y") << interpolationText("Value");
    m_pPointTable->setHorizontalHeaderLabels(headers);
    m_pPointTable->verticalHeader()->setVisible(true);
    m_pPointTable->verticalHeader()->setFixedWidth(36);
    m_pPointTable->verticalHeader()->setDefaultAlignment(Qt::AlignCenter);
    // 第0行为单位选择，不占用测点序号.
    m_pPointTable->setVerticalHeaderItem(
                POINT_UNIT_ROW, new QTableWidgetItem(QString()));
    m_pPointTable->horizontalHeader()->setResizeMode(QHeaderView::Stretch);
    m_pPointTable->setSelectionBehavior(QAbstractItemView::SelectRows);
    m_pPointTable->setSelectionMode(QAbstractItemView::SingleSelection);
    m_pPointTable->setAlternatingRowColors(true);
    m_pPointTable->setMinimumHeight(170);
    m_pPointTable->setRowHeight(POINT_UNIT_ROW, 24);

    // 第0行固定显示各列单位，数据行从第1行开始.
    m_pXUnitCombo = new QComboBox(m_pPointTable);
    m_pYUnitCombo = new QComboBox(m_pPointTable);
    m_pValueUnitCombo = new QComboBox(m_pPointTable);
    setTableUnitComboStyle(m_pXUnitCombo);
    setTableUnitComboStyle(m_pYUnitCombo);
    setTableUnitComboStyle(m_pValueUnitCombo);
    populateUnitCombo(m_pXUnitCombo, LENGTH_BASE_UNIT, LENGTH_BASE_UNIT);
    populateUnitCombo(m_pYUnitCombo, LENGTH_BASE_UNIT, LENGTH_BASE_UNIT);
    populateUnitCombo(m_pValueUnitCombo,
                      PERMEABILITY_BASE_UNIT, PERMEABILITY_DISPLAY_UNIT);
    m_pPointTable->setCellWidget(POINT_UNIT_ROW, 0, m_pXUnitCombo);
    m_pPointTable->setCellWidget(POINT_UNIT_ROW, 1, m_pYUnitCombo);
    m_pPointTable->setCellWidget(POINT_UNIT_ROW, 2, m_pValueUnitCombo);
    pointLayout->addWidget(m_pPointTable, 1);

    // 显示选项放在左侧，当前测点操作放在右侧，减少分散的按钮行.
    QHBoxLayout* pointButtonLayout = new QHBoxLayout;
    pointButtonLayout->setSpacing(8);
    m_pShowPointsCheck = new QCheckBox(interpolationText("Show measurement points"), pointGroup);
    m_pShowPointsCheck->setChecked(true);
    pointButtonLayout->addWidget(m_pShowPointsCheck);
    m_pShowLabelsCheck = new QCheckBox(interpolationText("Show labels"), pointGroup);
    m_pShowLabelsCheck->setChecked(true);
    pointButtonLayout->addWidget(m_pShowLabelsCheck);
    pointButtonLayout->addStretch();
    m_pDeletePointButton = new QPushButton(interpolationText("Delete Selected"), pointGroup);
    m_pDeletePointButton->setMinimumWidth(84);
    m_pDeletePointButton->setEnabled(false);
    pointButtonLayout->addWidget(m_pDeletePointButton);
    m_pClearPointsButton = new QPushButton(interpolationText("Clear"), pointGroup);
    m_pClearPointsButton->setMinimumWidth(72);
    m_pClearPointsButton->setEnabled(false);
    pointButtonLayout->addWidget(m_pClearPointsButton);
    pointLayout->addLayout(pointButtonLayout);
    mainLayout->addWidget(pointGroup, 1);

    // Kriging参数采用两行双列布局，保持信息完整并压缩纵向空间.
    QGroupBox* parameterGroup = new QGroupBox(interpolationText("Kriging Parameters"), this);
    QGridLayout* parameterLayout = new QGridLayout(parameterGroup);
    parameterLayout->setContentsMargins(10, 8, 10, 10);
    parameterLayout->setHorizontalSpacing(8);
    parameterLayout->setVerticalSpacing(6);
    m_pNuggetSpin = createNumberSpinBox(parameterGroup, 0.01);
    parameterLayout->addWidget(new QLabel(interpolationText("Nugget:"), parameterGroup), 0, 0);
    parameterLayout->addWidget(m_pNuggetSpin, 0, 1);
    m_pSillSpin = createNumberSpinBox(parameterGroup, 100.0);
    parameterLayout->addWidget(new QLabel(interpolationText("Sill:"), parameterGroup), 0, 2);
    parameterLayout->addWidget(m_pSillSpin, 0, 3);
    QWidget* rangeWidget = new QWidget(parameterGroup);
    QHBoxLayout* rangeLayout = new QHBoxLayout(rangeWidget);
    rangeLayout->setContentsMargins(0, 0, 0, 0);
    rangeLayout->setSpacing(6);
    m_pRangeSpin = createNumberSpinBox(rangeWidget, 1000.0);
    rangeLayout->addWidget(m_pRangeSpin, 1);
    m_pRangeUnitCombo = new QComboBox(rangeWidget);
    m_pRangeUnitCombo->setFixedWidth(72);
    populateUnitCombo(m_pRangeUnitCombo, LENGTH_BASE_UNIT, LENGTH_BASE_UNIT);
    rangeLayout->addWidget(m_pRangeUnitCombo);
    parameterLayout->addWidget(new QLabel(interpolationText("Range:"), parameterGroup), 1, 0);
    parameterLayout->addWidget(rangeWidget, 1, 1);
    m_pModelCombo = new QComboBox(parameterGroup);
    m_pModelCombo->setFixedWidth(compactComboWidth);
    m_pModelCombo->addItem(interpolationText("Spherical (0)"), 0);
    m_pModelCombo->addItem(interpolationText("Exponential (1)"), 1);
    m_pModelCombo->addItem(interpolationText("Gaussian (2)"), 2);
    parameterLayout->addWidget(new QLabel(interpolationText("Model:"), parameterGroup), 1, 2);
    parameterLayout->addWidget(m_pModelCombo, 1, 3);
    parameterLayout->setColumnStretch(1, 1);
    parameterLayout->setColumnStretch(3, 1);
    mainLayout->addWidget(parameterGroup);

    // 分别指定正式求解时需要使用插值结果的属性和数据组.
    QGroupBox* calculationGroup = new QGroupBox(
                interpolationText("Use Interpolation in Solver"), this);
    QGridLayout* calculationLayout = new QGridLayout(calculationGroup);
    calculationLayout->setContentsMargins(10, 8, 10, 10);
    calculationLayout->setHorizontalSpacing(8);
    calculationLayout->setVerticalSpacing(6);
    m_pUseKCheck = new QCheckBox(interpolationText("Permeability k"), calculationGroup);
    m_pKCalculationDataSetCombo = new QComboBox(calculationGroup);
    m_pKCalculationDataSetCombo->setFixedWidth(compactComboWidth);
    calculationLayout->addWidget(m_pUseKCheck, 0, 0);
    calculationLayout->addWidget(m_pKCalculationDataSetCombo, 0, 1);

    m_pUsePhiCheck = new QCheckBox(interpolationText("Porosity phi"), calculationGroup);
    m_pPhiCalculationDataSetCombo = new QComboBox(calculationGroup);
    m_pPhiCalculationDataSetCombo->setFixedWidth(compactComboWidth);
    calculationLayout->addWidget(m_pUsePhiCheck, 1, 0);
    calculationLayout->addWidget(m_pPhiCalculationDataSetCombo, 1, 1);

    m_pUseHCheck = new QCheckBox(interpolationText("Reservoir thickness h"), calculationGroup);
    m_pHCalculationDataSetCombo = new QComboBox(calculationGroup);
    m_pHCalculationDataSetCombo->setFixedWidth(compactComboWidth);
    calculationLayout->addWidget(m_pUseHCheck, 2, 0);
    calculationLayout->addWidget(m_pHCalculationDataSetCombo, 2, 1);
    calculationLayout->setColumnMinimumWidth(1, compactComboWidth);
    calculationLayout->setColumnStretch(2, 1);
    mainLayout->addWidget(calculationGroup);

    // 底部操作按钮.
    QHBoxLayout* buttonLayout = new QHBoxLayout;
    m_pPreviewButton = new QPushButton(interpolationText("Preview"), this);
    m_pPreviewButton->setMinimumWidth(84);
    m_pPreviewButton->setEnabled(false);
    buttonLayout->addWidget(m_pPreviewButton);
    buttonLayout->addStretch();
    QPushButton* closeButton = new QPushButton(interpolationText("Close"), this);
    closeButton->setMinimumWidth(84);
    buttonLayout->addWidget(closeButton);
    mainLayout->addLayout(buttonLayout);

    connect(m_pDataSetCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(onDataSetChanged(int)));
    connect(m_pAddDataSetButton, SIGNAL(clicked()), this, SLOT(onAddDataSet()));
    connect(m_pDeleteDataSetButton, SIGNAL(clicked()), this, SLOT(onDeleteDataSet()));
    connect(m_pNameEdit, SIGNAL(textChanged(QString)),
            this, SLOT(onDataSetNameChanged(QString)));
    connect(m_pPropertyCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(onCurrentDataSetPropertyChanged()));
    connect(m_pNuggetSpin, SIGNAL(valueChanged(double)),
            this, SLOT(onCurrentDataSetEdited()));
    connect(m_pSillSpin, SIGNAL(valueChanged(double)),
            this, SLOT(onCurrentDataSetEdited()));
    connect(m_pRangeSpin, SIGNAL(valueChanged(double)),
            this, SLOT(onCurrentDataSetEdited()));
    connect(m_pXUnitCombo, SIGNAL(currentIndexChanged(const QString&)),
            this, SLOT(onXDisplayUnitChanged(const QString&)));
    connect(m_pYUnitCombo, SIGNAL(currentIndexChanged(const QString&)),
            this, SLOT(onYDisplayUnitChanged(const QString&)));
    connect(m_pNewValueUnitCombo, SIGNAL(currentIndexChanged(const QString&)),
            this, SLOT(onValueDisplayUnitChanged(const QString&)));
    connect(m_pValueUnitCombo, SIGNAL(currentIndexChanged(const QString&)),
            this, SLOT(onValueDisplayUnitChanged(const QString&)));
    connect(m_pRangeUnitCombo, SIGNAL(currentIndexChanged(const QString&)),
            this, SLOT(onRangeDisplayUnitChanged(const QString&)));
    connect(m_pModelCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(onCurrentDataSetEdited()));
    connect(m_pMapPickButton, SIGNAL(toggled(bool)), this, SLOT(onMapPickToggled(bool)));
    connect(m_pPointTable, SIGNAL(itemSelectionChanged()),
            this, SLOT(onPointSelectionChanged()));
    connect(m_pPointTable, SIGNAL(itemChanged(QTableWidgetItem*)),
            this, SLOT(onPointItemChanged(QTableWidgetItem*)));
    connect(m_pDeletePointButton, SIGNAL(clicked()), this, SLOT(onDeleteSelectedPoint()));
    connect(m_pClearPointsButton, SIGNAL(clicked()), this, SLOT(onClearPoints()));
    connect(m_pShowPointsCheck, SIGNAL(toggled(bool)), this, SLOT(onShowPointsToggled(bool)));
    connect(m_pShowLabelsCheck, SIGNAL(toggled(bool)), this, SLOT(onShowLabelsToggled(bool)));
    connect(m_pUseKCheck, SIGNAL(toggled(bool)),
            this, SLOT(onCalculationSelectionChanged()));
    connect(m_pKCalculationDataSetCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(onCalculationSelectionChanged()));
    connect(m_pUsePhiCheck, SIGNAL(toggled(bool)),
            this, SLOT(onCalculationSelectionChanged()));
    connect(m_pPhiCalculationDataSetCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(onCalculationSelectionChanged()));
    connect(m_pUseHCheck, SIGNAL(toggled(bool)),
            this, SLOT(onCalculationSelectionChanged()));
    connect(m_pHCalculationDataSetCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(onCalculationSelectionChanged()));
    connect(m_pPreviewButton, SIGNAL(clicked()), this, SLOT(onPreview()));
    connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));
}

void nmWxPropertyInterpolationDlg::initializeDataSets()
{
    m_bUpdatingUi = true;

    // 数据组允许为空，首次进入窗口时不自动创建默认数据组.
    if(!m_pDataManager.isNull()) {
        m_vecDataSets = m_pDataManager->getPropertyInterpolationDataSets();
    }

    bool dataChanged = false;
    for(int i = 0; i < m_vecDataSets.size(); ++i) {
        if(m_vecDataSets[i].name.isEmpty()) {
            m_vecDataSets[i].name = nextDataSetName();
            dataChanged = true;
        }
    }

    m_vecMarkerNames.resize(m_vecDataSets.size());
    // 测点标记不参与持久化，打开对话框时根据已保存测点重新创建.
    createMarkersForAllDataSets();

    bool oldBlock = m_pDataSetCombo->blockSignals(true);
    m_pDataSetCombo->clear();
    for(int i = 0; i < m_vecDataSets.size(); ++i) {
        m_pDataSetCombo->addItem(m_vecDataSets[i].name);
    }
    const int initialIndex = m_vecDataSets.isEmpty() ? -1 : 0;
    m_pDataSetCombo->setCurrentIndex(initialIndex);
    m_pDataSetCombo->blockSignals(oldBlock);

    m_nCurrentDataSetIndex = initialIndex;
    loadDataSet(initialIndex);
    m_bUpdatingUi = false;
    updateDataSetButtons();
    updateCalculationDataSetControls();

    if(dataChanged) {
        syncDataSetsToManager(false);
    }
}

nmPropertyInterpolationDataSet nmWxPropertyInterpolationDlg::createDefaultDataSet()
{
    nmPropertyInterpolationDataSet dataSet;
    dataSet.name = nextDataSetName();
    dataSet.property = "k";
    dataSet.showPoints = true;
    dataSet.showLabels = true;
    dataSet.nugget = 0.01;
    dataSet.sill = 100.0;
    dataSet.range = 1000.0;
    dataSet.model = 0;
    return dataSet;
}

QString nmWxPropertyInterpolationDlg::nextDataSetName()
{
    for(int number = 1; ; ++number) {
        const QString name = interpolationText("Dataset #%1").arg(number);
        bool exists = false;
        for(int i = 0; i < m_vecDataSets.size(); ++i) {
            if(m_vecDataSets[i].name == name) {
                exists = true;
                break;
            }
        }

        if(!exists) {
            return name;
        }
    }
}

void nmWxPropertyInterpolationDlg::loadDataSet(int index)
{
    if(index < 0 || index >= m_vecDataSets.size()) {
        clearCurrentDataSet();
        return;
    }

    // 切换数据组时批量刷新控件，避免控件信号被误判为用户修改.
    bool wasUpdating = m_bUpdatingUi;
    m_bUpdatingUi = true;
    nmPropertyInterpolationDataSet& dataSet = m_vecDataSets[index];

    m_pNameEdit->setText(dataSet.name);
    int propertyIndex = m_pPropertyCombo->findData(dataSet.property);
    m_pPropertyCombo->setCurrentIndex(propertyIndex < 0 ? 0 : propertyIndex);
    updateUnitControls(dataSet);
    m_pNewValueSpin->setValue(0.0);
    m_pNuggetSpin->setValue(dataSet.nugget);
    m_pSillSpin->setValue(dataSet.sill);
    // Range在数据组中保存为m，加载时转换成当前选择的显示单位.
    m_pRangeSpin->setValue(convertedUnitValue(
                               dataSet.range, LENGTH_BASE_UNIT,
                               m_pRangeUnitCombo->currentText()));
    int modelIndex = m_pModelCombo->findData(dataSet.model);
    m_pModelCombo->setCurrentIndex(modelIndex < 0 ? 0 : modelIndex);
    m_pShowPointsCheck->setChecked(dataSet.showPoints);
    m_pShowLabelsCheck->setChecked(dataSet.showLabels);

    // 重建测点行时保留第0行单位控件，并阻止itemChanged反向修改数据.
    bool oldTableBlock = m_pPointTable->blockSignals(true);
    clearPointRows();
    const QStringList markerNames = m_vecMarkerNames.value(index);
    for(int i = 0; i < dataSet.points.size(); ++i) {
        appendPointRow(dataSet.points[i], markerNames.value(i));
    }
    m_pPointTable->blockSignals(oldTableBlock);
    updatePointDisplayValues();

    clearTableSelection();
    updatePointButtons();
    updateCurrentMarkerVisibility();
    m_bUpdatingUi = wasUpdating;
    updateDataSetButtons();
}

void nmWxPropertyInterpolationDlg::clearCurrentDataSet()
{
    bool wasUpdating = m_bUpdatingUi;
    m_bUpdatingUi = true;

    if(m_pMapPickButton->isChecked()) {
        m_pMapPickButton->setChecked(false);
    }
    m_pNameEdit->clear();
    m_pPropertyCombo->setCurrentIndex(-1);
    m_pNewValueSpin->setValue(0.0);
    // 没有当前数据组时保留坐标基准单位，属性值单位置空并禁用.
    populateUnitCombo(m_pXUnitCombo, LENGTH_BASE_UNIT, LENGTH_BASE_UNIT);
    populateUnitCombo(m_pYUnitCombo, LENGTH_BASE_UNIT, LENGTH_BASE_UNIT);
    populateUnitCombo(m_pNewValueUnitCombo, QString(), QString());
    populateUnitCombo(m_pValueUnitCombo, QString(), QString());
    populateUnitCombo(m_pRangeUnitCombo, LENGTH_BASE_UNIT, LENGTH_BASE_UNIT);
    clearPointRows();
    m_pShowPointsCheck->setChecked(false);
    m_pShowLabelsCheck->setChecked(false);
    m_pNuggetSpin->setValue(0.01);
    m_pSillSpin->setValue(100.0);
    m_pRangeSpin->setValue(1000.0);
    m_pModelCombo->setCurrentIndex(-1);

    clearTableSelection();
    m_bUpdatingUi = wasUpdating;
    updateDataSetButtons();
}

void nmWxPropertyInterpolationDlg::saveCurrentDataSet()
{
    if(m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    nmPropertyInterpolationDataSet& dataSet = m_vecDataSets[m_nCurrentDataSetIndex];
    dataSet.name = m_pNameEdit->text();
    dataSet.property = m_pPropertyCombo->itemData(m_pPropertyCombo->currentIndex()).toString();
    // 显示单位作为界面偏好保存，Range写回数据组前统一转换为米.
    dataSet.xDisplayUnit = m_pXUnitCombo->currentText();
    dataSet.yDisplayUnit = m_pYUnitCombo->currentText();
    dataSet.valueDisplayUnit = propertyBaseUnit(dataSet.property).isEmpty() ?
                QString() : m_pValueUnitCombo->currentText();
    dataSet.rangeDisplayUnit = m_pRangeUnitCombo->currentText();
    dataSet.nugget = m_pNuggetSpin->value();
    dataSet.sill = m_pSillSpin->value();
    dataSet.range = convertedUnitValue(
                m_pRangeSpin->value(), dataSet.rangeDisplayUnit,
                LENGTH_BASE_UNIT);
    dataSet.model = m_pModelCombo->itemData(m_pModelCombo->currentIndex()).toInt();
    dataSet.showPoints = m_pShowPointsCheck->isChecked();
    dataSet.showLabels = m_pShowLabelsCheck->isChecked();

}

void nmWxPropertyInterpolationDlg::updateUnitControls(
        nmPropertyInterpolationDataSet& dataSet)
{
    populateUnitCombo(m_pXUnitCombo, LENGTH_BASE_UNIT,
                      dataSet.xDisplayUnit);
    populateUnitCombo(m_pYUnitCombo, LENGTH_BASE_UNIT,
                      dataSet.yDisplayUnit);

    const QString valueBaseUnit = propertyBaseUnit(dataSet.property);
    // 未保存显示单位时按属性默认值初始化，孔隙度使用空单位.
    const QString valueDisplayUnit = dataSet.valueDisplayUnit.isEmpty() ?
                defaultPropertyDisplayUnit(dataSet.property) :
                dataSet.valueDisplayUnit;
    populateUnitCombo(m_pNewValueUnitCombo,
                      valueBaseUnit, valueDisplayUnit);
    populateUnitCombo(m_pValueUnitCombo,
                      valueBaseUnit, valueDisplayUnit);
    populateUnitCombo(m_pRangeUnitCombo, LENGTH_BASE_UNIT,
                      dataSet.rangeDisplayUnit);
    dataSet.xDisplayUnit = m_pXUnitCombo->currentText();
    dataSet.yDisplayUnit = m_pYUnitCombo->currentText();
    dataSet.valueDisplayUnit = valueBaseUnit.isEmpty() ?
                QString() : m_pValueUnitCombo->currentText();
    dataSet.rangeDisplayUnit = m_pRangeUnitCombo->currentText();
}

void nmWxPropertyInterpolationDlg::updatePointDisplayValues()
{
    if(m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    const nmPropertyInterpolationDataSet& dataSet =
            m_vecDataSets[m_nCurrentDataSetIndex];
    const QString valueBaseUnit = propertyBaseUnit(dataSet.property);
    // 测点保留基准值，仅换算表格和地图标签；屏蔽信号避免刷新时反向写回.
    bool oldTableBlock = m_pPointTable->blockSignals(true);
    for(int pointIndex = 0; pointIndex < dataSet.points.size(); ++pointIndex) {
        const int tableRow = pointIndex + FIRST_POINT_ROW;
        if(tableRow >= m_pPointTable->rowCount()) {
            break;
        }

        const nmPropertyInterpolationPointData& point = dataSet.points[pointIndex];
        QTableWidgetItem* xItem = m_pPointTable->item(tableRow, 0);
        QTableWidgetItem* yItem = m_pPointTable->item(tableRow, 1);
        QTableWidgetItem* valueItem = m_pPointTable->item(tableRow, 2);
        if(xItem != NULL) {
            xItem->setText(displayValueText(convertedUnitValue(
                                                point.x, LENGTH_BASE_UNIT,
                                                dataSet.xDisplayUnit)));
        }
        if(yItem != NULL) {
            yItem->setText(displayValueText(convertedUnitValue(
                                                point.y, LENGTH_BASE_UNIT,
                                                dataSet.yDisplayUnit)));
        }
        const double displayValue = convertedUnitValue(
                    point.value, valueBaseUnit,
                    dataSet.valueDisplayUnit);
        const QString valueText = displayValueText(displayValue);
        if(valueItem != NULL) {
            valueItem->setText(valueText);
        }

        nmObjPoint* marker = markerAt(tableRow);
        if(marker != NULL) {
            setMarkerLabel(marker, valueText);
            marker->update();
        }
    }
    m_pPointTable->blockSignals(oldTableBlock);
}

void nmWxPropertyInterpolationDlg::clearPointRows()
{
    // 只删除测点数据行，第0行的单位下拉框始终保留.
    if(m_pPointTable != NULL && m_pPointTable->rowCount() > FIRST_POINT_ROW) {
        m_pPointTable->setRowCount(FIRST_POINT_ROW);
    }
    updatePointRowNumbers();
}

void nmWxPropertyInterpolationDlg::updatePointRowNumbers()
{
    if(m_pPointTable == NULL) {
        return;
    }

    // 单位行留空，测点数据行始终从1开始连续编号.
    for(int row = POINT_UNIT_ROW; row < m_pPointTable->rowCount(); ++row) {
        const QString number = row < FIRST_POINT_ROW ?
                    QString() : QString::number(row - FIRST_POINT_ROW + 1);
        QTableWidgetItem* headerItem = m_pPointTable->verticalHeaderItem(row);
        if(headerItem == NULL) {
            m_pPointTable->setVerticalHeaderItem(row,
                                                 new QTableWidgetItem(number));
        }
        else {
            headerItem->setText(number);
        }
    }
}

void nmWxPropertyInterpolationDlg::syncDataSetsToManager(bool markModified)
{
    if(!m_pDataManager.isNull()) {
        m_pDataManager->setPropertyInterpolationDataSets(m_vecDataSets);
    }

    if(markModified && !m_pPlot.isNull()) {
        m_pPlot->setModified(true);
    }
}

void nmWxPropertyInterpolationDlg::updateDataSetButtons()
{
    const bool hasCurrent = m_nCurrentDataSetIndex >= 0 &&
            m_nCurrentDataSetIndex < m_vecDataSets.size();
    const bool canPickOnMap = hasCurrent && !m_pPlot.isNull() &&
            m_pPlot->m_pPlotView != NULL && m_pPlot->m_pPlot != NULL;
    const bool hasValueUnit = hasCurrent &&
            !propertyBaseUnit(m_vecDataSets[m_nCurrentDataSetIndex].property).isEmpty();

    m_pDataSetCombo->setEnabled(hasCurrent);
    m_pDeleteDataSetButton->setEnabled(hasCurrent);
    m_pNameEdit->setEnabled(hasCurrent);
    m_pPropertyCombo->setEnabled(hasCurrent);
    m_pNewValueSpin->setEnabled(hasCurrent);
    m_pNewValueUnitCombo->setEnabled(hasValueUnit);
    m_pMapPickButton->setEnabled(canPickOnMap);
    m_pPointTable->setEnabled(hasCurrent);
    m_pXUnitCombo->setEnabled(hasCurrent);
    m_pYUnitCombo->setEnabled(hasCurrent);
    m_pValueUnitCombo->setEnabled(hasValueUnit);
    m_pShowPointsCheck->setEnabled(hasCurrent);
    m_pShowLabelsCheck->setEnabled(hasCurrent);
    m_pNuggetSpin->setEnabled(hasCurrent);
    m_pSillSpin->setEnabled(hasCurrent);
    m_pRangeSpin->setEnabled(hasCurrent);
    m_pRangeUnitCombo->setEnabled(hasCurrent);
    m_pModelCombo->setEnabled(hasCurrent);
    updatePointButtons();
}

void nmWxPropertyInterpolationDlg::updateCalculationDataSetControls()
{
    // 批量重建三个下拉框时阻止选择变化信号写回未完成的界面状态.
    bool wasUpdating = m_bUpdatingUi;
    m_bUpdatingUi = true;
    updateCalculationDataSetControl("k", m_pUseKCheck,
                                    m_pKCalculationDataSetCombo);
    updateCalculationDataSetControl("phi", m_pUsePhiCheck,
                                    m_pPhiCalculationDataSetCombo);
    updateCalculationDataSetControl("h", m_pUseHCheck,
                                    m_pHCalculationDataSetCombo);
    m_bUpdatingUi = wasUpdating;
}

void nmWxPropertyInterpolationDlg::updateCalculationDataSetControl(
        const QString& property,
        QCheckBox* checkBox,
        QComboBox* comboBox)
{
    if(checkBox == NULL || comboBox == NULL) {
        return;
    }

    // 下拉项保存原数据组下标，并根据useForCalculation恢复当前选择.
    comboBox->clear();
    int selectedComboIndex = -1;
    for(int dataSetIndex = 0; dataSetIndex < m_vecDataSets.size(); ++dataSetIndex) {
        const nmPropertyInterpolationDataSet& dataSet = m_vecDataSets[dataSetIndex];
        if(dataSet.property != property) {
            continue;
        }

        comboBox->addItem(dataSet.name, dataSetIndex);
        if(selectedComboIndex < 0 && dataSet.useForCalculation) {
            selectedComboIndex = comboBox->count() - 1;
        }
    }

    comboBox->setCurrentIndex(selectedComboIndex >= 0 ? selectedComboIndex :
                              (comboBox->count() > 0 ? 0 : -1));
    checkBox->setChecked(selectedComboIndex >= 0);
    checkBox->setEnabled(comboBox->count() > 0);
    comboBox->setEnabled(checkBox->isChecked() && comboBox->count() > 0);
}

void nmWxPropertyInterpolationDlg::saveCalculationSelection(
        const QString& property,
        QCheckBox* checkBox,
        QComboBox* comboBox)
{
    // 先清除同属性的旧标记，保证每个属性最多启用一个插值数据组.
    for(int dataSetIndex = 0; dataSetIndex < m_vecDataSets.size(); ++dataSetIndex) {
        if(m_vecDataSets[dataSetIndex].property == property) {
            m_vecDataSets[dataSetIndex].useForCalculation = false;
        }
    }

    if(checkBox == NULL || comboBox == NULL || !checkBox->isChecked()) {
        return;
    }

    const int selectedDataSetIndex = comboBox->itemData(
                comboBox->currentIndex()).toInt();
    if(selectedDataSetIndex >= 0 && selectedDataSetIndex < m_vecDataSets.size() &&
            m_vecDataSets[selectedDataSetIndex].property == property) {
        m_vecDataSets[selectedDataSetIndex].useForCalculation = true;
    }
}

void nmWxPropertyInterpolationDlg::onDataSetChanged(int index)
{
    if(m_bUpdatingUi || index < 0 || index >= m_vecDataSets.size() ||
            index == m_nCurrentDataSetIndex) {
        return;
    }

    saveCurrentDataSet();
    syncDataSetsToManager(false);
    m_nCurrentDataSetIndex = index;
    loadDataSet(index);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::onAddDataSet()
{
    saveCurrentDataSet();
    m_vecDataSets.append(createDefaultDataSet());
    m_vecMarkerNames.append(QStringList());

    int newIndex = m_vecDataSets.size() - 1;
    bool oldBlock = m_pDataSetCombo->blockSignals(true);
    m_pDataSetCombo->addItem(m_vecDataSets[newIndex].name);
    m_pDataSetCombo->setCurrentIndex(newIndex);
    m_pDataSetCombo->blockSignals(oldBlock);

    m_nCurrentDataSetIndex = newIndex;
    loadDataSet(newIndex);
    updateDataSetButtons();
    updateCalculationDataSetControls();
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::onDeleteDataSet()
{
    if(m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    int removedIndex = m_nCurrentDataSetIndex;
    removeDataSetMarkers(removedIndex);
    m_vecDataSets.remove(removedIndex);
    m_vecMarkerNames.remove(removedIndex);

    const int newIndex = m_vecDataSets.isEmpty() ? -1 :
            qMin(removedIndex, m_vecDataSets.size() - 1);
    bool oldBlock = m_pDataSetCombo->blockSignals(true);
    m_pDataSetCombo->removeItem(removedIndex);
    m_pDataSetCombo->setCurrentIndex(newIndex);
    m_pDataSetCombo->blockSignals(oldBlock);

    m_nCurrentDataSetIndex = newIndex;
    loadDataSet(newIndex);
    updateDataSetButtons();
    updateCalculationDataSetControls();
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::onDataSetNameChanged(const QString& name)
{
    if(m_bUpdatingUi || m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    m_vecDataSets[m_nCurrentDataSetIndex].name = name;
    m_pDataSetCombo->setItemText(m_nCurrentDataSetIndex, name);
    updateCalculationDataSetControls();
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::onCurrentDataSetPropertyChanged()
{
    if(m_bUpdatingUi || m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    // 数据组切换属性后取消原有求解选择，并切换到对应的基准显示单位.
    nmPropertyInterpolationDataSet& dataSet =
            m_vecDataSets[m_nCurrentDataSetIndex];
    dataSet.useForCalculation = false;
    dataSet.property = m_pPropertyCombo->itemData(
                m_pPropertyCombo->currentIndex()).toString();
    dataSet.valueDisplayUnit = defaultPropertyDisplayUnit(dataSet.property);
    updateUnitControls(dataSet);
    m_pNewValueSpin->setValue(0.0);
    updatePointDisplayValues();
    saveCurrentDataSet();
    updateCalculationDataSetControls();
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::onCurrentDataSetEdited()
{
    if(m_bUpdatingUi) {
        return;
    }

    saveCurrentDataSet();
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::onXDisplayUnitChanged(const QString& unit)
{
    if(m_bUpdatingUi || m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    // 坐标基准值保持为m，仅刷新X列的显示文本.
    m_vecDataSets[m_nCurrentDataSetIndex].xDisplayUnit = unit;
    updatePointDisplayValues();
    syncDataSetsToManager(true);
}

void nmWxPropertyInterpolationDlg::onYDisplayUnitChanged(const QString& unit)
{
    if(m_bUpdatingUi || m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    // 坐标基准值保持为m，仅刷新Y列的显示文本.
    m_vecDataSets[m_nCurrentDataSetIndex].yDisplayUnit = unit;
    updatePointDisplayValues();
    syncDataSetsToManager(true);
}

void nmWxPropertyInterpolationDlg::onValueDisplayUnitChanged(const QString& unit)
{
    if(m_bUpdatingUi || m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    nmPropertyInterpolationDataSet& dataSet =
            m_vecDataSets[m_nCurrentDataSetIndex];
    const QString baseUnit = propertyBaseUnit(dataSet.property);
    if(baseUnit.isEmpty() || unit.isEmpty() ||
            unit == dataSet.valueDisplayUnit) {
        return;
    }

    // 经基准单位中转，切换单位时不会改变待添加值表示的物理量.
    const double baseNewValue = convertedUnitValue(
                m_pNewValueSpin->value(),
                dataSet.valueDisplayUnit, baseUnit);
    dataSet.valueDisplayUnit = unit;

    // 新值和表头共用显示单位，联动时屏蔽信号以避免递归触发.
    bool oldBlock = m_pNewValueUnitCombo->blockSignals(true);
    m_pNewValueUnitCombo->setCurrentIndex(
                m_pNewValueUnitCombo->findText(unit));
    m_pNewValueUnitCombo->blockSignals(oldBlock);
    oldBlock = m_pValueUnitCombo->blockSignals(true);
    m_pValueUnitCombo->setCurrentIndex(m_pValueUnitCombo->findText(unit));
    m_pValueUnitCombo->blockSignals(oldBlock);
    oldBlock = m_pNewValueSpin->blockSignals(true);
    m_pNewValueSpin->setValue(convertedUnitValue(
                                  baseNewValue, baseUnit, unit));
    m_pNewValueSpin->blockSignals(oldBlock);

    updatePointDisplayValues();
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::onRangeDisplayUnitChanged(const QString& unit)
{
    if(m_bUpdatingUi || unit.isEmpty() || m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    nmPropertyInterpolationDataSet& dataSet =
            m_vecDataSets[m_nCurrentDataSetIndex];
    // 先按旧显示单位还原米制基准值，再使用新单位回显.
    dataSet.range = convertedUnitValue(
                m_pRangeSpin->value(), dataSet.rangeDisplayUnit,
                LENGTH_BASE_UNIT);
    dataSet.rangeDisplayUnit = unit;

    bool oldBlock = m_pRangeSpin->blockSignals(true);
    m_pRangeSpin->setValue(convertedUnitValue(
                               dataSet.range, LENGTH_BASE_UNIT, unit));
    m_pRangeSpin->blockSignals(oldBlock);
    syncDataSetsToManager(true);
}

void nmWxPropertyInterpolationDlg::onCalculationSelectionChanged()
{
    if(m_bUpdatingUi) {
        return;
    }

    // 先保存当前编辑内容，再统一更新三个属性的唯一求解数据组.
    saveCurrentDataSet();
    saveCalculationSelection("k", m_pUseKCheck,
                             m_pKCalculationDataSetCombo);
    saveCalculationSelection("phi", m_pUsePhiCheck,
                             m_pPhiCalculationDataSetCombo);
    saveCalculationSelection("h", m_pUseHCheck,
                             m_pHCalculationDataSetCombo);

    m_pKCalculationDataSetCombo->setEnabled(m_pUseKCheck->isChecked());
    m_pPhiCalculationDataSetCombo->setEnabled(m_pUsePhiCheck->isChecked());
    m_pHCalculationDataSetCombo->setEnabled(m_pUseHCheck->isChecked());
    syncDataSetsToManager(true);
}

bool nmWxPropertyInterpolationDlg::eventFilter(QObject* watched, QEvent* event)
{
    // 点击表格空白处或其他控件时取消测点行的选中状态.
    if(event != NULL && event->type() == QEvent::MouseButtonPress && m_pPointTable != NULL) {
        QWidget* clickedWidget = qobject_cast<QWidget*>(watched);

        if(clickedWidget != NULL) {
            bool isTableViewport = clickedWidget == m_pPointTable->viewport() ||
                                   m_pPointTable->viewport()->isAncestorOf(clickedWidget);

            if(clickedWidget == m_pPointTable->viewport()) {
                QMouseEvent* mouseEvent = static_cast<QMouseEvent*>(event);

                if(m_pPointTable->itemAt(mouseEvent->pos()) == NULL) {
                    clearTableSelection();
                }
            } else if(!isTableViewport && clickedWidget != m_pDeletePointButton) {
                clearTableSelection();
            }
        }
    }

    return iDlgBase::eventFilter(watched, event);
}

void nmWxPropertyInterpolationDlg::onMapPickToggled(bool checked)
{
    if(m_pPlot.isNull() || m_pPlot->m_pPlotView == NULL) {
        return;
    }

    // 每次切换前先断开旧连接，防止一次地图点击被重复处理.
    disconnect(m_pPlot->m_pPlotView, SIGNAL(sigLeftClick(QPointF)),
               this, SLOT(onMapClicked(QPointF)));

    if(checked) {
        m_pPlot->cancelActiveTools();
        connect(m_pPlot->m_pPlotView, SIGNAL(sigLeftClick(QPointF)),
                this, SLOT(onMapClicked(QPointF)));
        m_pPlot->m_pPlotView->setCursor(Qt::CrossCursor);
    } else {
        m_pPlot->m_pPlotView->restoreCursor();
    }
}

void nmWxPropertyInterpolationDlg::onMapClicked(const QPointF& position)
{
    if(!m_pMapPickButton->isChecked() || m_pPlot.isNull() ||
            m_pPlot->m_pPlot == NULL || m_nCurrentDataSetIndex < 0) {
        return;
    }

    if(!m_pPlot->m_pPlot->getInnerRectF().contains(position)) {
        return;
    }

    // 点击位置为绘图区坐标，需要转换成实际数据坐标后保存.
    QPointF plotPosition = position;
    QPointF valuePoint = m_pPlot->m_pPlot->getValueForPos(plotPosition);
    appendPoint(valuePoint);
}

void nmWxPropertyInterpolationDlg::appendPoint(const QPointF& valuePoint)
{
    if(m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    nmPropertyInterpolationDataSet& dataSet = m_vecDataSets[m_nCurrentDataSetIndex];
    const QString valueBaseUnit = propertyBaseUnit(dataSet.property);
    const double displayPointValue = m_pNewValueSpin->value();
    // 属性值按求解器基准单位保存，地图标签继续使用当前显示值.
    const double pointValue = convertedUnitValue(
                displayPointValue, dataSet.valueDisplayUnit,
                valueBaseUnit);
    nmPropertyInterpolationPointData point(valuePoint.x(), valuePoint.y(), pointValue);
    QString markerName = createMarker(valuePoint, displayPointValue,
                                       dataSet.showPoints, dataSet.showLabels);

    // 测点数据、地图标记和表格行按相同顺序同步追加.
    dataSet.points.append(point);
    m_vecMarkerNames[m_nCurrentDataSetIndex].append(markerName);

    bool oldBlock = m_pPointTable->blockSignals(true);
    appendPointRow(point, markerName);
    m_pPointTable->blockSignals(oldBlock);
    m_pPointTable->scrollToBottom();
    updatePointButtons();
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::appendPointRow(
        const nmPropertyInterpolationPointData& point,
        const QString& markerName)
{
    // rowCount已包含单位行，新插入行天然与points下标保持FIRST_POINT_ROW偏移.
    int row = m_pPointTable->rowCount();
    m_pPointTable->insertRow(row);
    m_pPointTable->setVerticalHeaderItem(
                row, new QTableWidgetItem(QString::number(
                                              row - FIRST_POINT_ROW + 1)));

    QString xUnit = LENGTH_BASE_UNIT;
    QString yUnit = LENGTH_BASE_UNIT;
    QString valueUnit;
    QString valueBaseUnit;
    if(m_nCurrentDataSetIndex >= 0 &&
            m_nCurrentDataSetIndex < m_vecDataSets.size()) {
        const nmPropertyInterpolationDataSet& dataSet =
                m_vecDataSets[m_nCurrentDataSetIndex];
        xUnit = dataSet.xDisplayUnit;
        yUnit = dataSet.yDisplayUnit;
        valueUnit = dataSet.valueDisplayUnit;
        valueBaseUnit = propertyBaseUnit(dataSet.property);
    }

    QTableWidgetItem* xItem = new QTableWidgetItem(displayValueText(
                convertedUnitValue(point.x, LENGTH_BASE_UNIT, xUnit)));
    // 将地图标记名称绑定在X列，后续可由表格行直接定位对应标记.
    xItem->setData(Qt::UserRole, markerName);
    m_pPointTable->setItem(row, 0, xItem);

    QTableWidgetItem* yItem = new QTableWidgetItem(displayValueText(
                convertedUnitValue(point.y, LENGTH_BASE_UNIT, yUnit)));
    m_pPointTable->setItem(row, 1, yItem);

    m_pPointTable->setItem(row, 2, new QTableWidgetItem(displayValueText(
                convertedUnitValue(point.value, valueBaseUnit, valueUnit))));
}

QString nmWxPropertyInterpolationDlg::createMarker(const QPointF& valuePosition,
                                                   double value,
                                                   bool showPoints,
                                                   bool showLabels)
{
    if(m_pPlot.isNull() || m_pPlot->m_pPlot == NULL) {
        return QString();
    }

    QString markerName;
    do {
        markerName = QString("__PropertyInterpolationPoint_%1").arg(++m_nNextPointId);
    } while(m_pPlot->m_pPlot->getObjByName(markerName) != NULL);

    // 地图标记仅用于临时显示，不应单独改变工程修改状态.
    bool wasModified = m_pPlot->isModified();
    PropertyInterpolationMarker* marker = new PropertyInterpolationMarker(
                markerName,
                m_pPlot->m_pPlot->getMainAxisX(),
                m_pPlot->m_pPlot->getMainAxisY());
    m_pPlot->bindObjSignals(marker);

    if(!m_pPlot->m_pPlot->addOneObj(marker)) {
        delete marker;
        m_pPlot->setModified(wasModified);
        return QString();
    }

    QVector<QPointF> values;
    values.append(valuePosition);
    marker->setAllValues(values);
    m_pPlot->slotObjCompleted(marker);
    setMarkerLabel(marker, QString::number(value, 'g', 10));
    marker->setReadOnly(true);
    marker->setLockPos(true);
    marker->showSubObjs(showPoints && showLabels);
    marker->setVisible(showPoints);
    marker->deselect(true);
    marker->update();
    m_pPlot->setModified(wasModified);
    return markerName;
}

void nmWxPropertyInterpolationDlg::createMarkersForAllDataSets()
{
    if(m_pPlot.isNull() || m_pPlot->m_pPlot == NULL) {
        return;
    }

    // 地图标签使用显示单位，数据组中的测点基准值保持不变.
    for(int dataSetIndex = 0; dataSetIndex < m_vecDataSets.size(); ++dataSetIndex) {
        const nmPropertyInterpolationDataSet& dataSet = m_vecDataSets[dataSetIndex];
        QStringList markerNames;

        for(int pointIndex = 0; pointIndex < dataSet.points.size(); ++pointIndex) {
            const nmPropertyInterpolationPointData& point = dataSet.points[pointIndex];
            QPointF valuePosition(point.x, point.y);
            const double displayValue = convertedUnitValue(
                        point.value, propertyBaseUnit(dataSet.property),
                        dataSet.valueDisplayUnit);
            markerNames.append(createMarker(valuePosition, displayValue,
                                             dataSet.showPoints, dataSet.showLabels));
        }

        m_vecMarkerNames[dataSetIndex] = markerNames;
    }
}

void nmWxPropertyInterpolationDlg::removeDataSetMarkers(int dataSetIndex)
{
    if(dataSetIndex < 0 || dataSetIndex >= m_vecMarkerNames.size()) {
        return;
    }

    const QStringList markerNames = m_vecMarkerNames[dataSetIndex];
    for(int i = 0; i < markerNames.size(); ++i) {
        removeMarkerByName(markerNames[i]);
    }
    m_vecMarkerNames[dataSetIndex].clear();
}

void nmWxPropertyInterpolationDlg::removeAllMarkers()
{
    for(int i = 0; i < m_vecMarkerNames.size(); ++i) {
        removeDataSetMarkers(i);
    }
    m_vecMarkerNames.clear();
}

QString nmWxPropertyInterpolationDlg::markerNameAt(int row) const
{
    if(m_pPointTable == NULL || row < FIRST_POINT_ROW ||
            row >= m_pPointTable->rowCount()) {
        return QString();
    }

    QTableWidgetItem* item = m_pPointTable->item(row, 0);
    return item == NULL ? QString() : item->data(Qt::UserRole).toString();
}

nmObjPoint* nmWxPropertyInterpolationDlg::markerByName(const QString& markerName) const
{
    if(m_pPlot.isNull() || m_pPlot->m_pPlot == NULL || markerName.isEmpty()) {
        return NULL;
    }

    return dynamic_cast<nmObjPoint*>(m_pPlot->m_pPlot->getObjByName(markerName));
}

nmObjPoint* nmWxPropertyInterpolationDlg::markerAt(int row) const
{
    return markerByName(markerNameAt(row));
}

void nmWxPropertyInterpolationDlg::removeMarkerByName(const QString& markerName)
{
    if(m_pPlot.isNull() || m_pPlot->m_pPlot == NULL || markerName.isEmpty() ||
            m_pPlot->m_pPlot->getObjByName(markerName) == NULL) {
        return;
    }

    bool wasModified = m_pPlot->isModified();
    m_pPlot->m_pPlot->removeObjByName(markerName);
    m_pPlot->setModified(wasModified);
}

void nmWxPropertyInterpolationDlg::onPointSelectionChanged()
{
    // 单位行只用于切换显示单位，不作为可删除的测点行.
    if(m_pPointTable->currentRow() == POINT_UNIT_ROW) {
        clearTableSelection();
        return;
    }
    updatePointButtons();
}

void nmWxPropertyInterpolationDlg::onPointItemChanged(QTableWidgetItem* item)
{
    // 表格行减去单位行偏移后，才是数据组中的测点下标.
    const int pointIndex = item == NULL ? -1 :
            item->row() - FIRST_POINT_ROW;
    if(m_bUpdatingUi || item == NULL || item->column() < 0 ||
            item->column() > 2 ||
            pointIndex < 0 ||
            m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size() ||
            pointIndex >= m_vecDataSets[m_nCurrentDataSetIndex].points.size()) {
        return;
    }

    nmPropertyInterpolationDataSet& dataSet =
            m_vecDataSets[m_nCurrentDataSetIndex];
    nmPropertyInterpolationPointData& point = dataSet.points[pointIndex];

    // X、Y及属性值分别按当前显示单位换算回数据中心使用的基准单位.
    QString baseUnit;
    QString displayUnit;
    double oldBaseValue = 0.0;
    if(item->column() == 0) {
        baseUnit = LENGTH_BASE_UNIT;
        displayUnit = dataSet.xDisplayUnit;
        oldBaseValue = point.x;
    }
    else if(item->column() == 1) {
        baseUnit = LENGTH_BASE_UNIT;
        displayUnit = dataSet.yDisplayUnit;
        oldBaseValue = point.y;
    }
    else {
        baseUnit = propertyBaseUnit(dataSet.property);
        displayUnit = dataSet.valueDisplayUnit;
        oldBaseValue = point.value;
    }

    bool valueOk = false;
    const double displayValue = item->text().toDouble(&valueOk);
    if(!valueOk || (item->column() == 2 && displayValue < 0.0)) {
        // 坐标允许为负数；属性值仍要求非负，非法输入恢复为修改前的值.
        const double oldDisplayValue = convertedUnitValue(
                    oldBaseValue, baseUnit, displayUnit);
        const bool oldBlock = m_pPointTable->blockSignals(true);
        item->setText(displayValueText(oldDisplayValue));
        m_pPointTable->blockSignals(oldBlock);
        return;
    }

    const double baseValue = convertedUnitValue(
                displayValue, displayUnit, baseUnit);
    if(item->column() == 0) {
        point.x = baseValue;
    }
    else if(item->column() == 1) {
        point.y = baseValue;
    }
    else {
        point.value = baseValue;
    }

    const QString displayText = displayValueText(displayValue);
    if(item->text() != displayText) {
        const bool oldBlock = m_pPointTable->blockSignals(true);
        item->setText(displayText);
        m_pPointTable->blockSignals(oldBlock);
    }

    // 坐标修改后移动Map标记，属性值修改后刷新标记标签.
    nmObjPoint* marker = markerAt(item->row());
    if(marker != NULL) {
        if(item->column() < 2) {
            QVector<QPointF> positions;
            positions.append(QPointF(point.x, point.y));
            marker->setAllValues(positions);
        }
        else {
            setMarkerLabel(marker, displayText);
        }
        marker->update();
    }
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::onDeleteSelectedPoint()
{
    int row = m_pPointTable->currentRow();
    // 同时删除相同下标的数据、地图标记和表格行，保持三者一一对应.
    const int pointIndex = row - FIRST_POINT_ROW;
    if(pointIndex < 0 || m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    removeMarkerByName(markerNameAt(row));
    if(pointIndex < m_vecDataSets[m_nCurrentDataSetIndex].points.size()) {
        m_vecDataSets[m_nCurrentDataSetIndex].points.remove(pointIndex);
    }
    if(pointIndex < m_vecMarkerNames[m_nCurrentDataSetIndex].size()) {
        m_vecMarkerNames[m_nCurrentDataSetIndex].removeAt(pointIndex);
    }
    m_pPointTable->removeRow(row);
    updatePointRowNumbers();
    clearTableSelection();
    updatePointButtons();
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::onClearPoints()
{
    if(m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    removeDataSetMarkers(m_nCurrentDataSetIndex);
    m_vecDataSets[m_nCurrentDataSetIndex].points.clear();
    clearPointRows();
    clearTableSelection();
    updatePointButtons();
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::onShowPointsToggled(bool checked)
{
    if(m_bUpdatingUi || m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    m_vecDataSets[m_nCurrentDataSetIndex].showPoints = checked;
    updateCurrentMarkerVisibility();
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::onShowLabelsToggled(bool checked)
{
    if(m_bUpdatingUi || m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size()) {
        return;
    }

    m_vecDataSets[m_nCurrentDataSetIndex].showLabels = checked;
    updateCurrentMarkerVisibility();
    syncDataSetsToManager(true);
    schedulePreviewRefresh();
}

void nmWxPropertyInterpolationDlg::clearTableSelection()
{
    m_pPointTable->clearSelection();
    m_pPointTable->setCurrentCell(-1, -1);
}

void nmWxPropertyInterpolationDlg::updatePointButtons()
{
    const bool hasCurrent = m_nCurrentDataSetIndex >= 0 &&
            m_nCurrentDataSetIndex < m_vecDataSets.size();
    const bool hasPoints = hasCurrent &&
            !m_vecDataSets[m_nCurrentDataSetIndex].points.isEmpty();

    // 已有测点的数值含义已经确定，需清空测点后才能切换数据组属性.
    m_pPropertyCombo->setEnabled(hasCurrent && !hasPoints);
    m_pPropertyCombo->setToolTip(hasPoints ?
                interpolationText("Clear measurement points before changing the property.") :
                QString());
    m_pDeletePointButton->setEnabled(
                hasCurrent && m_pPointTable->currentRow() >= FIRST_POINT_ROW);
    m_pClearPointsButton->setEnabled(
                hasCurrent && m_pPointTable->rowCount() > FIRST_POINT_ROW);
    // Kriging预览至少需要两个已知测点.
    m_pPreviewButton->setEnabled(hasCurrent &&
            m_vecDataSets[m_nCurrentDataSetIndex].points.size() >= 2);
}

void nmWxPropertyInterpolationDlg::onPreview()
{
    if(m_pPreviewRefreshTimer != NULL) {
        m_pPreviewRefreshTimer->stop();
    }
    updatePreviewWindow(true);
}

void nmWxPropertyInterpolationDlg::schedulePreviewRefresh()
{
    if(m_pPreviewDialog.isNull() || !m_pPreviewDialog->isVisible() ||
            m_pPreviewRefreshTimer == NULL) {
        return;
    }

    // 连续编辑参数时重置计时，仅对最终状态执行一次插值计算.
    m_pPreviewRefreshTimer->start();
}

void nmWxPropertyInterpolationDlg::refreshPreview()
{
    if(m_pPreviewDialog.isNull() || !m_pPreviewDialog->isVisible()) {
        return;
    }

    updatePreviewWindow(false);
}

void nmWxPropertyInterpolationDlg::showPreviewError(
        const QString& message,
        bool activateWindow)
{
    const QString errorText = message.isEmpty() ?
            interpolationText("Preview Failed") : message;
    QString dataSetName;
    if(m_nCurrentDataSetIndex >= 0 &&
            m_nCurrentDataSetIndex < m_vecDataSets.size()) {
        dataSetName = m_vecDataSets[m_nCurrentDataSetIndex].name;
    }

    if(!m_pPreviewDialog.isNull()) {
        m_pPreviewDialog->showMessage(dataSetName, errorText);
        if(activateWindow) {
            m_pPreviewDialog->show();
            m_pPreviewDialog->raise();
            m_pPreviewDialog->activateWindow();
        }
    }
    else if(activateWindow) {
        QMessageBox::warning(this, interpolationText("Preview Failed"), errorText);
    }
}

void nmWxPropertyInterpolationDlg::updatePreviewWindow(bool activateWindow)
{
    if(m_nCurrentDataSetIndex < 0 ||
            m_nCurrentDataSetIndex >= m_vecDataSets.size() ||
            m_pDataManager.isNull()) {
        showPreviewError(interpolationText("Preview Failed"), activateWindow);
        return;
    }

    saveCurrentDataSet();
    const nmPropertyInterpolationDataSet& dataSet =
            m_vecDataSets[m_nCurrentDataSetIndex];

    // 预览范围直接使用储层边界，与地图中的数据坐标保持一致.
    QVector<QPointF> outlinePoints;
    QRectF previewBounds;
    if(!createPreviewOutline(m_pDataManager->getOutlineData(),
                             outlinePoints, previewBounds)) {
        showPreviewError(
                    interpolationText("Please create a valid reservoir boundary before previewing."),
                    activateWindow);
        return;
    }

    QVector<QPointF> measurementPoints;
    QVector<double> measurementValues;
    measurementPoints.reserve(dataSet.points.size());
    measurementValues.reserve(dataSet.points.size());
    for(int i = 0; i < dataSet.points.size(); ++i) {
        measurementPoints.append(QPointF(dataSet.points[i].x,
                                         dataSet.points[i].y));
        measurementValues.append(dataSet.points[i].value);
    }

    // 按行生成规则待插值点，输出下标与预览网格下标保持一致；
    // 较疏采样可使分级色带边界更清晰.
    const int columnCount = 19;
    const int rowCount = 19;
    QVector<QPointF> targetPoints;
    targetPoints.reserve(columnCount * rowCount);
    for(int row = 0; row < rowCount; ++row) {
        const double y = previewBounds.top() +
                previewBounds.height() * row / (rowCount - 1);
        for(int column = 0; column < columnCount; ++column) {
            const double x = previewBounds.left() +
                    previewBounds.width() * column / (columnCount - 1);
            targetPoints.append(QPointF(x, y));
        }
    }

    QVector<double> interpolationValues;
    QString errorMessage;
    QApplication::setOverrideCursor(Qt::WaitCursor);
    // 通过统一封装调用Kriging接口，返回值顺序与待插值点一致.
    const bool calculationSucceeded = nmCalculationUtils::calculateKriging(
                targetPoints,
                measurementPoints,
                measurementValues,
                dataSet.nugget,
                dataSet.sill,
                dataSet.range,
                dataSet.model,
                m_pDataManager->getLicensePath(),
                interpolationValues,
                &errorMessage);
    QApplication::restoreOverrideCursor();

    if(!calculationSucceeded) {
        showPreviewError(errorMessage, activateWindow);
        return;
    }

    // Kriging使用内部基准值；渲染前统一转换表面和测点的显示单位.
    const QString valueBaseUnit = propertyBaseUnit(dataSet.property);
    QVector<double> displayInterpolationValues;
    displayInterpolationValues.reserve(interpolationValues.size());
    for(int i = 0; i < interpolationValues.size(); ++i) {
        displayInterpolationValues.append(convertedUnitValue(
                                               interpolationValues[i],
                                               valueBaseUnit,
                                               dataSet.valueDisplayUnit));
    }
    QVector<double> displayMeasurementValues;
    displayMeasurementValues.reserve(measurementValues.size());
    for(int i = 0; i < measurementValues.size(); ++i) {
        displayMeasurementValues.append(convertedUnitValue(
                                             measurementValues[i],
                                             valueBaseUnit,
                                             dataSet.valueDisplayUnit));
    }
    QString scalarTitle = m_pPropertyCombo->currentText();
    if(!dataSet.valueDisplayUnit.isEmpty()) {
        scalarTitle += QString(" (%1)").arg(dataSet.valueDisplayUnit);
    }

    // 直接读取Map中实际显示的井，避免“参与计算井”尚未设置时预览中没有井位.
    QVector<QPointF> wellPoints;
    QStringList wellNames;
    const QVector<nmObjPointWell*> wellPlots = m_pPlot.isNull() ?
                QVector<nmObjPointWell*>() : m_pPlot->getWellPlots();
    for(int i = 0; i < wellPlots.size(); ++i) {
        nmObjPointWell* wellPlot = wellPlots[i];
        if(wellPlot == NULL || wellPlot->getWellData() == NULL) {
            continue;
        }

        const QVector<double> wellInformation = wellPlot->getWellInformation();
        const QString wellName = wellPlot->getWellData()->getName();
        if(wellInformation.size() < 2 || wellName.isEmpty() ||
                wellNames.contains(wellName)) {
            continue;
        }

        const QPointF wellPoint(wellInformation[0], wellInformation[1]);
        if(previewBounds.contains(wellPoint)) {
            wellPoints.append(wellPoint);
            wellNames.append(wellName);
        }
    }

    // 预览窗口只负责裁剪和渲染，不修改数据组及正式求解参数.
    if(m_pPreviewDialog.isNull()) {
        m_pPreviewDialog = new nmWxPropertyInterpolationPreviewDlg(
                    dataSet.name,
                    scalarTitle,
                    previewBounds,
                    columnCount,
                    rowCount,
                    displayInterpolationValues,
                    measurementPoints,
                    displayMeasurementValues,
                    outlinePoints,
                    wellPoints,
                    wellNames,
                    dataSet.showPoints,
                    dataSet.showLabels,
                    this);
        m_pPreviewDialog->setAttribute(Qt::WA_DeleteOnClose, true);
    }
    else {
        m_pPreviewDialog->updatePreview(
                    dataSet.name,
                    scalarTitle,
                    previewBounds,
                    columnCount,
                    rowCount,
                    displayInterpolationValues,
                    measurementPoints,
                    displayMeasurementValues,
                    outlinePoints,
                    wellPoints,
                    wellNames,
                    dataSet.showPoints,
                    dataSet.showLabels);
    }

    if(activateWindow) {
        m_pPreviewDialog->show();
        m_pPreviewDialog->raise();
        m_pPreviewDialog->activateWindow();
    }
}

void nmWxPropertyInterpolationDlg::updateCurrentMarkerVisibility()
{
    // 地图上只显示当前数据组的测点，其他数据组统一隐藏.
    for(int dataSetIndex = 0;
            dataSetIndex < m_vecMarkerNames.size(); ++dataSetIndex) {
        const bool isCurrentDataSet = dataSetIndex == m_nCurrentDataSetIndex &&
                dataSetIndex < m_vecDataSets.size();
        const bool showPoints = isCurrentDataSet &&
                m_vecDataSets[dataSetIndex].showPoints;
        const bool showLabels = showPoints &&
                m_vecDataSets[dataSetIndex].showLabels;
        const QStringList markerNames = m_vecMarkerNames[dataSetIndex];

        for(int markerIndex = 0; markerIndex < markerNames.size(); ++markerIndex) {
            nmObjPoint* marker = markerByName(markerNames[markerIndex]);
            if(marker != NULL) {
                marker->setVisible(showPoints);
                marker->showSubObjs(showLabels);
                marker->update();
            }
        }
    }

    if(!m_pPlot.isNull() && m_pPlot->m_pPlotView != NULL) {
        m_pPlot->m_pPlotView->updateViewport();
    }
}