nmWTAI-Platform/Src/nmNum/nmSubWxs/nmWxGeoRefDlg.cpp

#define _USE_MATH_DEFINES

#include "nmWxGeoRefDlg.h"
#include <QGroupBox>
#include <QMessageBox>
#include <QFormLayout>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <cmath>

#include "nmDataAnalyzeManager.h"
#include "nmDataAxis.h"

nmWxGeoRefDlg::nmWxGeoRefDlg(QWidget* parent)
    : QDialog(parent), m_bUpdating(false)
{
    this->setWindowTitle(tr("Geo referencing"));
    initUI();
    this->resize(370, 320);
    this->setFixedSize(this->size());

    m_geoRefData = nmDataAnalyzeManager::getCurrentInstance()->getGeoRefDataCopy();

    loadDataToUI();
}

void nmWxGeoRefDlg::initUI()
{
    // Location group
    QGroupBox* locationGroup = new QGroupBox(tr("Location"));

    // form 布局
    QFormLayout* locForm = new QFormLayout;
    locForm->setLabelAlignment(Qt::AlignRight | Qt::AlignVCenter);
    locForm->setVerticalSpacing(12);
    locForm->setHorizontalSpacing(20);
    locForm->setContentsMargins(8, 8, 8, 8);

    m_pLongitudeEdit = new QLineEdit;  m_pLongitudeEdit->setFixedWidth(180);
    m_pLatitudeEdit  = new QLineEdit;  m_pLatitudeEdit ->setFixedWidth(180);
    locForm->addRow(tr("Longitude:"), m_pLongitudeEdit);
    locForm->addRow(tr("Latitude:"),  m_pLatitudeEdit);

    // 包一层 vbox，用 stretch 让 form 居中
    QVBoxLayout* locWrapper = new QVBoxLayout;
    locWrapper->addStretch(1);
    locWrapper->addLayout(locForm);
    locWrapper->addStretch(1);
    locWrapper->setContentsMargins(0, 0, 0, 0); // 根据需要调整 groupbox 内边距
    locationGroup->setLayout(locWrapper);

    // Zone group
    QGroupBox* zoneGroup = new QGroupBox(tr("Zone"));

    QFormLayout* zoneForm = new QFormLayout;
    zoneForm->setLabelAlignment(Qt::AlignRight | Qt::AlignVCenter);
    zoneForm->setVerticalSpacing(12);
    zoneForm->setHorizontalSpacing(20);
    zoneForm->setContentsMargins(8, 8, 8, 8);

    m_pUtmZoneCombo  = new QComboBox; m_pUtmZoneCombo->setFixedWidth(180);
    m_pEastingEdit   = new QLineEdit; m_pEastingEdit ->setFixedWidth(180);
    m_pNorthingEdit  = new QLineEdit; m_pNorthingEdit->setFixedWidth(180);
    zoneForm->addRow(tr("UTM zone:"), m_pUtmZoneCombo);
    zoneForm->addRow(tr("Easting:"),   m_pEastingEdit);
    zoneForm->addRow(tr("Northing:"),  m_pNorthingEdit);

    // 初始化 UTM Zone 下拉框（格式：01C~60X）
    QStringList bands;
    bands << "C" << "D" << "E" << "F" << "G" << "H" << "J" << "K" << "L" << "M"
          << "N" << "P" << "Q" << "R" << "S" << "T" << "U" << "V" << "W" << "X"; // 有效纬度带

    // 外层循环：Band；内层循环：Zone
    for(int i = 0; i < bands.size(); ++i) {
        QString band = bands.at(i);

        for(int zone = 1; zone <= 60; ++zone) {
            // 格式化为两位数 Zone + 纬度带（例如 "01C", "02C"）
            QString zoneStr = QString("%1%2").arg(zone, 2, 10, QLatin1Char('0')).arg(band);
            m_pUtmZoneCombo->addItem(zoneStr);
        }
    }

    m_pUtmZoneCombo->setCurrentIndex(-1);

    QVBoxLayout* zoneWrapper = new QVBoxLayout;
    zoneWrapper->addStretch(1);
    zoneWrapper->addLayout(zoneForm);
    zoneWrapper->addStretch(1);
    zoneWrapper->setContentsMargins(0, 0, 0, 0);
    zoneGroup->setLayout(zoneWrapper);

    // Buttons
    m_pOkButton     = new QPushButton(tr("OK"));
    m_pCancelButton = new QPushButton(tr("Cancel"));
    m_pOkButton->setDefault(true);
    connect(m_pOkButton, SIGNAL(clicked()), this, SLOT(okAccept()));
    connect(m_pCancelButton, SIGNAL(clicked()), this, SLOT(cancelReject()));

    QHBoxLayout* btnLay = new QHBoxLayout;
    btnLay->addStretch();
    btnLay->addWidget(m_pOkButton);
    btnLay->addWidget(m_pCancelButton);

    // 主布局
    QVBoxLayout* mainLay = new QVBoxLayout;
    mainLay->setContentsMargins(10, 10, 10, 10);
    mainLay->setSpacing(15);
    mainLay->addWidget(locationGroup);
    mainLay->addWidget(zoneGroup);
    mainLay->addLayout(btnLay);
    setLayout(mainLay);

    // 初始都设成不可编辑
    m_pLongitudeEdit->setEnabled(false);
    m_pLatitudeEdit ->setEnabled(false);
    m_pUtmZoneCombo ->setEnabled(true);
    m_pEastingEdit  ->setEnabled(false);
    m_pNorthingEdit ->setEnabled(false);

    connect(m_pUtmZoneCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(onUtmZoneChanged(int)));
    connect(m_pLongitudeEdit, SIGNAL(editingFinished()), this, SLOT(onLongitudeChanged()));
    connect(m_pLatitudeEdit, SIGNAL(editingFinished()), this, SLOT(onLatitudeChanged()));
    connect(m_pEastingEdit, SIGNAL(editingFinished()), this, SLOT(onEastingChanged()));
    connect(m_pNorthingEdit, SIGNAL(editingFinished()), this, SLOT(onNorthingChanged()));
}

// 根据经纬度和UTM zone计算Northing坐标的辅助函数
double nmWxGeoRefDlg::calculateNorthing(double latitude, double longitude, int zone)
{
    // UTM投影的简化计算公式
    // 这里使用基本的UTM投影算法

    const double a = 6378137.0;          // WGS84长半轴
    const double e2 = 0.00669437999014;  // WGS84第一偏心率的平方
    const double k0 = 0.9996;            // UTM比例因子

    // 转换为弧度
    double lat_rad = latitude * M_PI / 180.0;
    double lon_rad = longitude * M_PI / 180.0;

    // 中央经线
    double lon0_rad = (-183.0 + zone * 6.0) * M_PI / 180.0;
    double dlon = lon_rad - lon0_rad;

    // UTM投影计算
    double N = a / sqrt(1 - e2 * sin(lat_rad) * sin(lat_rad));
    double T = tan(lat_rad) * tan(lat_rad);
    double C = e2 * cos(lat_rad) * cos(lat_rad) / (1 - e2);
    double A = cos(lat_rad) * dlon;

    double M = a * ((1 - e2 / 4 - 3 * e2 * e2 / 64 - 5 * e2 * e2 * e2 / 256) * lat_rad
                    - (3 * e2 / 8 + 3 * e2 * e2 / 32 + 45 * e2 * e2 * e2 / 1024) * sin(2 * lat_rad)
                    + (15 * e2 * e2 / 256 + 45 * e2 * e2 * e2 / 1024) * sin(4 * lat_rad)
                    - (35 * e2 * e2 * e2 / 3072) * sin(6 * lat_rad));

    double northing = k0 * (M + N * tan(lat_rad) * (A * A / 2 + (5 - T + 9 * C + 4 * C * C) * A * A * A * A / 24
                            + (61 - 58 * T + T * T + 600 * C - 330 * e2) * A * A * A * A * A * A / 720));

    // 南半球需要加上假北值
    if(latitude < 0) {
        northing += 10000000.0;
    }

    return northing;
}

// 经度编辑完成时的处理
void nmWxGeoRefDlg::onLongitudeChanged()
{
    if(m_bUpdating) return;   // 防止递归更新

    QString lonText = m_pLongitudeEdit->text();
    QString latText = m_pLatitudeEdit->text();

    // 检查经度值是否真的发生了变化
    if(lonText == m_lastLongitude) {
        return;  // 值没有变化，不进行转换
    }

    if(!lonText.isEmpty() && !latText.isEmpty()) {
        updateFromLatLon();
    }
}

// 纬度编辑完成时的处理
void nmWxGeoRefDlg::onLatitudeChanged()
{
    if(m_bUpdating) return;   // 防止递归更新

    QString lonText = m_pLongitudeEdit->text();
    QString latText = m_pLatitudeEdit->text();

    // 检查纬度值是否真的发生了变化
    if(latText == m_lastLatitude) {
        return;  // 值没有变化，不进行转换
    }

    if(!lonText.isEmpty() && !latText.isEmpty()) {
        updateFromLatLon();
    }
}

// 东向坐标编辑完成时的处理
void nmWxGeoRefDlg::onEastingChanged()
{
    if(m_bUpdating) return;   // 防止递归更新

    QString eastingText = m_pEastingEdit->text();
    QString northingText = m_pNorthingEdit->text();
    QString zoneText = m_pUtmZoneCombo->currentText();

    // 检查东向坐标值是否真的发生了变化
    if(eastingText == m_lastEasting) {
        return;  // 值没有变化，不进行转换
    }

    if(!eastingText.isEmpty() && !northingText.isEmpty() && !zoneText.isEmpty()) {
        updateFromUTM();
    }
}

// 北向坐标编辑完成时的处理
void nmWxGeoRefDlg::onNorthingChanged()
{
    if(m_bUpdating) return;   // 防止递归更新

    QString eastingText = m_pEastingEdit->text();
    QString northingText = m_pNorthingEdit->text();
    QString zoneText = m_pUtmZoneCombo->currentText();

    // 检查北向坐标值是否真的发生了变化
    if(northingText == m_lastNorthing) {
        return;  // 值没有变化，不进行转换
    }

    if(!eastingText.isEmpty() && !northingText.isEmpty() && !zoneText.isEmpty()) {
        updateFromUTM();
    }
}

// 更新记录的值
void nmWxGeoRefDlg::updateFromLatLon()
{
    m_bUpdating = true;  // 设置更新标志

    bool ok1, ok2;
    double latitude = m_pLatitudeEdit->text().toDouble(&ok1);
    double longitude = m_pLongitudeEdit->text().toDouble(&ok2);

    if(!ok1 || !ok2) {
        QMessageBox::warning(this, tr("Input Error"), tr("Please enter valid numbers"));
        // 恢复之前的有效值
        m_pLongitudeEdit->setText(m_lastLongitude);
        m_pLatitudeEdit->setText(m_lastLatitude);
        m_bUpdating = false;
        return;
    }

    // 验证经纬度范围
    if(!isValidLatitude(latitude)) {
        QMessageBox::warning(this, tr("Input Error"), tr("Latitude must be between - 90o and + 90o"));
        // 恢复之前的有效值
        m_pLatitudeEdit->setText(m_lastLatitude);
        m_bUpdating = false;
        return;
    }

    if(!isValidLongitude(longitude)) {
        QMessageBox::warning(this, tr("Input Error"), tr("Longitude must be between - 180o and + 180o"));
        // 恢复之前的有效值
        m_pLongitudeEdit->setText(m_lastLongitude);
        m_bUpdating = false;
        return;
    }

    int zone;
    char band;
    double easting, northing;

    // 执行坐标转换
    latLonToUTM(latitude, longitude, zone, band, easting, northing);

    // 更新UTM Zone下拉框
    QString zoneStr = QString("%1%2").arg(zone, 2, 10, QLatin1Char('0')).arg(band);
    int index = m_pUtmZoneCombo->findText(zoneStr);

    if(index >= 0) {
        m_pUtmZoneCombo->setCurrentIndex(index);
    }

    // 更新东向和北向坐标
    QString eastingStr = QString::number(easting, 'f', 2);
    QString northingStr = QString::number(northing, 'f', 2);

    m_pEastingEdit->setText(eastingStr);
    m_pNorthingEdit->setText(northingStr);

    // 转换成功后，更新所有记录的值
    m_lastLongitude = m_pLongitudeEdit->text();  // 使用当前输入框的值
    m_lastLatitude = m_pLatitudeEdit->text();
    m_lastEasting = eastingStr;
    m_lastNorthing = northingStr;

    m_bUpdating = false;  // 清除更新标志
}


// 更新记录的值
void nmWxGeoRefDlg::updateFromUTM()
{
	m_bUpdating = true;  // 设置更新标志

	bool ok1, ok2;
	double easting = m_pEastingEdit->text().toDouble(&ok1);
	double northing = m_pNorthingEdit->text().toDouble(&ok2);

	QString zoneText = m_pUtmZoneCombo->currentText();

	if(!ok1 || !ok2) {
		QMessageBox::warning(this, tr("Input Error"), tr("Please enter valid numbers"));
		restoreLastValidValues();
		return;
	}

	// 验证UTM坐标范围
	if(!isValidEasting(easting)) {
		QMessageBox::warning(this, tr("Input Error"), tr("Easting must be between 0 and 1,000,000 meters"));
		restoreLastValidValues();
		return;
	}

	if(!isValidNorthing(northing)) {
		QMessageBox::warning(this, tr("Input Error"), tr("Northing must be between 0 and 10,000,000 meters"));
		restoreLastValidValues();
		return;
	}

	if(zoneText.isEmpty()) {
		QMessageBox::warning(this, tr("Input Error"), tr("Please select a valid UTM Zone"));
		m_bUpdating = false;
		return;
	}

	// 解析UTM Zone
	int zone = zoneText.left(2).toInt();
	char band = zoneText.right(1).toLocal8Bit().at(0);

	double latitude, longitude;

	// 执行坐标转换，检查返回值
	bool conversionSuccess = utmToLatLon(zone, band, easting, northing, latitude, longitude);

	if (!conversionSuccess) {
		// 根据具体失败原因给出不同的错误信息
		if (band == 'C' || band == 'X' || zone <= 2 || zone >= 59) {
			QMessageBox::warning(this, tr("Conversion Error"), 
				tr("The UTM coordinates you entered correspond to an extreme polar region where coordinate conversion may be inaccurate.\n"
				"Please try coordinates closer to the center of the UTM zone."));
		} else {
			QMessageBox::warning(this, tr("Conversion Error"), 
				tr("UTM coordinate conversion failed.\n"
				"The coordinates may be outside the valid range for this UTM zone.\n"
				"Please check your input coordinates."));
		}
		restoreLastValidValues();
		return;
	}

	// 验证转换结果
	if(!isValidLatitude(latitude) || !isValidLongitude(longitude)) {
		QMessageBox::warning(this, tr("Conversion Error"), tr("UTM coordinate conversion result is out of valid range, please check input"));
		restoreLastValidValues();
		return;
	}

	// 更新经纬度
	QString longitudeStr = QString::number(longitude, 'f', 6);
	QString latitudeStr = QString::number(latitude, 'f', 6);

	m_pLongitudeEdit->setText(longitudeStr);
	m_pLatitudeEdit->setText(latitudeStr);

	// 转换成功后，更新所有记录的值
	m_lastLongitude = longitudeStr;
	m_lastLatitude = latitudeStr;
	m_lastEasting = m_pEastingEdit->text();    // 使用当前输入框的值
	m_lastNorthing = m_pNorthingEdit->text();

	m_bUpdating = false;  // 清除更新标志
}

// 恢复上次有效值
void nmWxGeoRefDlg::restoreLastValidValues()
{
	m_pEastingEdit->setText(m_lastEasting);
	m_pNorthingEdit->setText(m_lastNorthing);
	m_bUpdating = false;
}

// 更新记录的值
void nmWxGeoRefDlg::onUtmZoneChanged(int index)
{
    // 添加这行检查！如果正在更新过程中，直接返回
    if(m_bUpdating) return;

    // 设置更新标志，防止触发其他转换函数
    m_bUpdating = true;

    bool enabled = (index >= 0);  // 选择了有效的 UTM Zone 时启用
    m_pLongitudeEdit->setEnabled(enabled);
    m_pLatitudeEdit ->setEnabled(enabled);
    m_pEastingEdit  ->setEnabled(enabled);
    m_pNorthingEdit ->setEnabled(enabled);

    if(enabled) {
        // 获取选中的 UTM Zone
        QString selectedZone = m_pUtmZoneCombo->itemText(index);

        // 从选中的 UTM Zone 提取 Zone 和 Band
        int zone = selectedZone.left(2).toInt();
        QString band = selectedZone.right(1);

        // 计算经度（Longitude）
        double longitude = -177.0 + (zone - 1) * 6.0;
        QString longitudeStr = QString::number(longitude, 'f', 6);
        m_pLongitudeEdit->setText(longitudeStr);

        // 计算纬度（Latitude）
        QStringList bands;
        bands << "C" << "D" << "E" << "F" << "G" << "H" << "J" << "K" << "L" << "M"
              << "N" << "P" << "Q" << "R" << "S" << "T" << "U" << "V" << "W" << "X";

        int bandIndex = bands.indexOf(band);
        double latitude = -76.0;

        if(bandIndex >= 0) {
            if(bandIndex < bands.indexOf("X")) {
                // X之前的所有band，每个递增8度
                latitude += bandIndex * 8.0;
            } else {
                // X band：W到X跨度为10度
                latitude += (bandIndex - 1) * 8.0 + 10.0;
            }
        }

        QString latitudeStr = QString::number(latitude, 'f', 6);
        m_pLatitudeEdit->setText(latitudeStr);

        // 设置东向坐标（Easting）
        double easting = 50000.00;
        QString eastingStr = QString::number(easting, 'f', 2);
        m_pEastingEdit->setText(eastingStr);

        // 设置北向坐标（Northing）
        double northing = calculateNorthing(latitude, longitude, zone);
        QString northingStr = QString::number(northing, 'f', 2);
        m_pNorthingEdit->setText(northingStr);

        // 更新记录的所有值
        m_lastLongitude = longitudeStr;
        m_lastLatitude = latitudeStr;
        m_lastEasting = eastingStr;
        m_lastNorthing = northingStr;
    }

    // 清除更新标志
    m_bUpdating = false;
}

// 经纬度转UTM坐标
void nmWxGeoRefDlg::latLonToUTM(double lat, double lon, int& zone, char& band, double& easting, double& northing)
{
    // 确定UTM Zone
    zone = getUTMZoneFromLongitude(lon);
    band = getUTMBandFromLatitude(lat);

    // WGS84椭球体参数
    const double a = 6378137.0;          // 长半轴
    const double e2 = 0.00669437999014;  // 第一偏心率的平方
    const double k0 = 0.9996;            // 比例因子

    // 转换为弧度
    double lat_rad = lat * M_PI / 180.0;
    double lon_rad = lon * M_PI / 180.0;

    // 中央经线
    double lon0 = -183.0 + zone * 6.0;
    double lon0_rad = lon0 * M_PI / 180.0;
    double dlon = lon_rad - lon0_rad;

    // UTM投影计算
    double N = a / sqrt(1 - e2 * sin(lat_rad) * sin(lat_rad));
    double T = tan(lat_rad) * tan(lat_rad);
    double C = e2 * cos(lat_rad) * cos(lat_rad) / (1 - e2);
    double A = cos(lat_rad) * dlon;

    double M = a * ((1 - e2 / 4 - 3 * e2 * e2 / 64 - 5 * e2 * e2 * e2 / 256) * lat_rad
                    - (3 * e2 / 8 + 3 * e2 * e2 / 32 + 45 * e2 * e2 * e2 / 1024) * sin(2 * lat_rad)
                    + (15 * e2 * e2 / 256 + 45 * e2 * e2 * e2 / 1024) * sin(4 * lat_rad)
                    - (35 * e2 * e2 * e2 / 3072) * sin(6 * lat_rad));

    // 计算东向坐标
    easting = k0 * N * (A + (1 - T + C) * A * A * A / 6
                        + (5 - 18 * T + T * T + 72 * C - 58 * e2) * A * A * A * A * A / 120) + 500000.0;

    // 计算北向坐标
    northing = k0 * (M + N * tan(lat_rad) * (A * A / 2 + (5 - T + 9 * C + 4 * C * C) * A * A * A * A / 24
                     + (61 - 58 * T + T * T + 600 * C - 330 * e2) * A * A * A * A * A * A / 720));

    // 南半球需要加上假北值
    if(lat < 0) {
        northing += 10000000.0;
    }
}

// UTM坐标转经纬度
bool nmWxGeoRefDlg::utmToLatLon(int zone, char band, double easting, double northing, double& lat, double& lon)
{
	// WGS84椭球体参数
	const double a = 6378137.0;          // 长半轴 (米)
	const double f = 1.0 / 298.257223563; // 扁率
	const double e2 = 2 * f - f * f;     // 第一偏心率的平方
	const double k0 = 0.9996;            // UTM比例因子
	const double e1 = (1 - sqrt(1 - e2)) / (1 + sqrt(1 - e2));

	// 中央经线经度
	double lon0 = -183.0 + zone * 6.0;

	// 调整北向坐标（南半球处理）
	double y = northing;
	if(band < 'N') {   // 南半球
		y -= 10000000.0;
	}

	// 调整东向坐标
	double x = easting - 500000.0;

	// 计算足点纬度
	double M = y / k0;
	double mu = M / (a * (1 - e2 / 4 - 3 * e2 * e2 / 64 - 5 * e2 * e2 * e2 / 256));

	// 使用级数展开计算足点纬度
	double phi1 = mu + (3 * e1 / 2 - 27 * e1 * e1 * e1 / 32) * sin(2 * mu)
		+ (21 * e1 * e1 / 16 - 55 * e1 * e1 * e1 * e1 / 32) * sin(4 * mu)
		+ (151 * e1 * e1 * e1 / 96) * sin(6 * mu)
		+ (1097 * e1 * e1 * e1 * e1 / 512) * sin(8 * mu);

	// cos(phi1)是否过小
	if (fabs(cos(phi1)) < 1e-6) {
		// 设置默认值，让调用方知道转换失败
		lat = 0.0;
		lon = 0.0;
		return false;  // 返回false表示转换失败
	}

	// 计算各种参数
	double C1 = e2 * cos(phi1) * cos(phi1) / (1 - e2);
	double T1 = tan(phi1) * tan(phi1);
	double N1 = a / sqrt(1 - e2 * sin(phi1) * sin(phi1));
	double R1 = a * (1 - e2) / pow(1 - e2 * sin(phi1) * sin(phi1), 1.5);
	double D = x / (N1 * k0);

	// 计算纬度（弧度）
	double lat_rad = phi1 - (N1 * tan(phi1) / R1) *
		(D * D / 2 - (5 + 3 * T1 + 10 * C1 - 4 * C1 * C1 - 9 * e2) * D * D * D * D / 24
		+ (61 + 90 * T1 + 298 * C1 + 45 * T1 * T1 - 252 * e2 - 3 * C1 * C1) * D * D * D * D * D * D / 720);

	// 计算经度（弧度）
	double lon_rad = (D - (1 + 2 * T1 + C1) * D * D * D / 6
		+ (5 - 2 * C1 + 28 * T1 - 3 * C1 * C1 + 8 * e2 + 24 * T1 * T1) * D * D * D * D * D / 120) / cos(phi1);

	// 转换为度并加上中央经线
	lat = lat_rad * 180.0 / M_PI;
	lon = lon0 + lon_rad * 180.0 / M_PI;

	// 第二个检查：确保结果在合理范围内
	if (lat != lat || lon != lon ||          // 检查NaN
		fabs(lat) > 90.0 ||                  // 纬度必须在-90到90之间
		fabs(lon - lon0) > 180.0) {          // 经度距离中央经线不应超过180度

			// 设置默认值
			lat = 0.0;
			lon = 0.0;
			return false;  // 返回false表示转换失败
	}

	// 确保经度在有效范围内
	while(lon > 180.0) lon -= 360.0;
	while(lon < -180.0) lon += 360.0;

	return true;  // 转换成功
}

// 根据经度确定UTM Zone
int nmWxGeoRefDlg::getUTMZoneFromLongitude(double longitude)
{
    return (int)floor((longitude + 180.0) / 6.0) + 1;
}

// 根据纬度确定UTM Band
char nmWxGeoRefDlg::getUTMBandFromLatitude(double latitude)
{
    const char bands[] = "CDEFGHJKLMNPQRSTUVWX";
    int index = (int)floor((latitude + 80.0) / 8.0);

    if(index < 0) return 'C';

    if(index >= 20) return 'X';

    return bands[index];
}

bool nmWxGeoRefDlg::isValidLatitude(double lat)
{
    return (lat >= -90.0 && lat <= 90.0);
}

// 验证经度范围
bool nmWxGeoRefDlg::isValidLongitude(double lon)
{
    return (lon >= -180.0 && lon <= 180.0);
}

// 验证东向坐标范围
bool nmWxGeoRefDlg::isValidEasting(double easting)
{
	// 基本UTM范围检查
	if (easting < 0.0 || easting > 1000000.0) {
		return false;
	}

	// 获取坐标轴数据，考虑画布范围
	nmDataAxis* axisData = nmDataAnalyzeManager::getCurrentInstance()->getAxisData();
	if (axisData) {
		double xMin = axisData->getXMin().getValue().toDouble();
		double xMax = axisData->getXMax().getValue().toDouble();

		// 计算基准坐标的安全范围
		double safeEastingMin = 160000.0 - xMin;  // UTM东向最小值 - 画布最小X
		double safeEastingMax = 840000.0 - xMax;  // UTM东向最大值 - 画布最大X

		// 确保范围有效
		if (safeEastingMin < 0.0) safeEastingMin = 0.0;
		if (safeEastingMax > 1000000.0) safeEastingMax = 1000000.0;
		if (safeEastingMin >= safeEastingMax) {
			safeEastingMin = 0.0;
			safeEastingMax = 1000000.0;
		}

		return (easting >= safeEastingMin && easting <= safeEastingMax);
	}

	return true;  // 如果没有坐标轴数据，使用默认验证
}

// 验证北向坐标范围
bool nmWxGeoRefDlg::isValidNorthing(double northing)
{
	// 基本UTM范围检查
	if (northing < 0.0 || northing > 10000000.0) {
		return false;
	}

	// 获取坐标轴数据，考虑画布范围
	nmDataAxis* axisData = nmDataAnalyzeManager::getCurrentInstance()->getAxisData();
	if (axisData) {
		double yMin = axisData->getYMin().getValue().toDouble();
		double yMax = axisData->getYMax().getValue().toDouble();

		// 计算基准坐标的安全范围
		double safeNorthingMin = 0.0 - yMin;        // UTM北向最小值 - 画布最小Y
		double safeNorthingMax = 9000000.0 - yMax;  // UTM北向最大值 - 画布最大Y

		// 确保范围有效
		if (safeNorthingMin < 0.0) safeNorthingMin = 0.0;
		if (safeNorthingMax > 10000000.0) safeNorthingMax = 10000000.0;
		if (safeNorthingMin >= safeNorthingMax) {
			safeNorthingMin = 0.0;
			safeNorthingMax = 10000000.0;
		}

		return (northing >= safeNorthingMin && northing <= safeNorthingMax);
	}

	return true;  // 如果没有坐标轴数据，使用默认验证
}

void nmWxGeoRefDlg::loadDataToUI()
{
	m_bUpdating = true;

	// 检查UTM Zone是否有效
	QString utmZone = m_geoRefData.getUtmZone().getValue().toString();
	bool hasValidData = !utmZone.isEmpty();

	if(hasValidData) {
		// 有有效数据时，加载所有数据
		QString lonStr = QString::number(m_geoRefData.getLongitude().getValue().toDouble(), 'f', 6);
		m_pLongitudeEdit->setText(lonStr);
		m_lastLongitude = lonStr;

		QString latStr = QString::number(m_geoRefData.getLatitude().getValue().toDouble(), 'f', 6);
		m_pLatitudeEdit->setText(latStr);
		m_lastLatitude = latStr;

		int index = m_pUtmZoneCombo->findText(utmZone);
		if(index >= 0) {
			m_pUtmZoneCombo->setCurrentIndex(index);
		}

		QString eastingStr = QString::number(m_geoRefData.getEasting().getValue().toDouble(), 'f', 2);
		m_pEastingEdit->setText(eastingStr);
		m_lastEasting = eastingStr;

		QString northingStr = QString::number(m_geoRefData.getNorthing().getValue().toDouble(), 'f', 2);
		m_pNorthingEdit->setText(northingStr);
		m_lastNorthing = northingStr;

		// 启用所有控件
		m_pLongitudeEdit->setEnabled(true);
		m_pLatitudeEdit->setEnabled(true);
		m_pEastingEdit->setEnabled(true);
		m_pNorthingEdit->setEnabled(true);
	} else {
		// 无有效数据时，清空所有文本框，初始化last值
		m_pLongitudeEdit->setText("");
		m_pLatitudeEdit->setText("");
		m_pEastingEdit->setText("");
		m_pNorthingEdit->setText("");

		m_lastLongitude = "";
		m_lastLatitude = "";
		m_lastEasting = "";
		m_lastNorthing = "";
	}

	m_bUpdating = false;
}

void nmWxGeoRefDlg::saveDataUI()
{
    // 保存经度
    nmDataAttribute longitude = m_geoRefData.getLongitude();
    double lonValue = m_pLongitudeEdit->text().toDouble();
    longitude.setValue(lonValue);
    m_geoRefData.setLongitude(longitude);

    // 保存纬度
    nmDataAttribute latitude = m_geoRefData.getLatitude();
    double latValue = m_pLatitudeEdit->text().toDouble();
    latitude.setValue(latValue);
    m_geoRefData.setLatitude(latitude);

    // 保存UTM Zone
    nmDataAttribute utmZone = m_geoRefData.getUtmZone();
    utmZone.setValue(QVariant(m_pUtmZoneCombo->currentText()));
    m_geoRefData.setUtmZone(utmZone);

    // 保存东向坐标
    nmDataAttribute easting = m_geoRefData.getEasting();
    double estValue = m_pEastingEdit->text().toDouble();
    easting.setValue(estValue);
    m_geoRefData.setEasting(easting);

    // 保存北向坐标
    nmDataAttribute northing = m_geoRefData.getNorthing();
    double norValue = m_pNorthingEdit->text().toDouble();
    northing.setValue(norValue);
    m_geoRefData.setNorthing(northing);
}

void nmWxGeoRefDlg::okAccept()
{

    saveDataUI();

    // 更新到全局数据管理器
    nmDataAnalyzeManager::getCurrentInstance()->updateGeoRefData(m_geoRefData);

    // 调用基类的accept
    QDialog::accept();
}

void nmWxGeoRefDlg::cancelReject()
{
    // 调用基类的reject
    QDialog::reject();
}