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geodatamodel.cpp
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geodatamodel.cpp
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#include "geodatamodel.h"
GeoDataModel::GeoDataModel(QObject *parent)
: QAbstractListModel{parent}
{
m_geoDataList = new QList<GeoData*>;
}
GeoDataModel::~GeoDataModel()
{
// 首先检查列表指针是否为空
if (m_geoDataList) {
// 遍历列表,删除每个GeoData对象
for (int i = 0; i < m_geoDataList->size(); ++i) {
delete (*m_geoDataList)[i]; // 删除指针指向的对象
}
m_geoDataList->clear(); // 清空列表
delete m_geoDataList; // 删除列表指针本身
}
qDebug()<<"GISDataModel release";
}
int GeoDataModel::rowCount(const QModelIndex &parent) const
{
Q_UNUSED(parent);
return m_geoDataList->count();
}
QVariant GeoDataModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid() || index.row() >= m_geoDataList->size())
return QVariant();
if (role == Qt::DisplayRole) {
return m_geoDataList->at(index.row())->getName();
}
return QVariant();
}
QHash<int, QByteArray> GeoDataModel::roleNames() const
{
QHash<int, QByteArray> roles;
roles[Qt::DisplayRole] = "display";
return roles;
}
bool GeoDataModel::addGeoData(QString fileDir)
{
GeoData* geodata = new GeoData(fileDir.toUtf8().constData());
if(geodata){ //如果打开成功
qDebug()<<"add success";
m_geoDataList->append(std::move(geodata));
return true;
}
qDebug()<<"add failed";
return false;
}
GeoData* GeoDataModel::getDataByindex(int index)
{
return m_geoDataList->at(index);
}
int GeoDataModel::dataNum() const
{
return m_geoDataList->count();
}