QJson数据用法实例

SonicAttribute::SonicAttribute(QWidget *parent, iDataEntity* ent_select,QList<QString> attrList, QList<QString> attr_values, int flag, QString surveyfilepath) //attrList：属性名列表,attr_values：属性值列表: QDialog(parent)
{surveyfilepath_copy = surveyfilepath;ent_copy = ent_select;QDir dir;dir.setCurrent(current_path); //设置相对路径if (flag == 0){setPlotType(FLOWPOINT);}else if (flag == 1){setPlotType(SONICPOINT);}ui.setupUi(this);//将测量文件数据添加到ui.listWidget_Filelist  FLOWPOINT：验流点 SONICPOINT：声速点if (!surveyfilepath.isEmpty()){QJsonObject jsonSurveyFileObject = convertQStringToQJsonObject(surveyfilepath); //jsonSurveyFileObject：测量文件列表的Json格式if (getPlotType() == FLOWPOINT) //判断是否为验流点{if (jsonSurveyFileObject.contains(SURVEYFILELIST_FLOWPOINT)) //判断是否key包含验流点{QJsonValue flowarray_value = jsonSurveyFileObject.take(SURVEYFILELIST_FLOWPOINT);if (flowarray_value.isArray())//判断是否为json数组{QJsonArray flowPointArray = flowarray_value.toArray();//转成数组for (int i = 0; i < flowPointArray.size(); i++){QJsonValue flowPointValue = flowPointArray.at(i);if (flowPointValue.isString()){ui.listWidget_Filelist->addItem(flowPointValue.toString());}}}}}else if (getPlotType() == SONICPOINT) //判断是否为声速点{if (jsonSurveyFileObject.contains(SURVEYFILELIST_SONICPOINT)){QJsonValue sonicarray_value = jsonSurveyFileObject.take(SURVEYFILELIST_SONICPOINT);if (sonicarray_value.isArray())//判断是否为json数组{QJsonArray sonicPointArray = sonicarray_value.toArray();//转成数组for (int i = 0; i < sonicPointArray.size(); i++){QJsonValue sonicPointValue = sonicPointArray.at(i);if (sonicPointValue.isString()){ui.listWidget_Filelist->addItem(sonicPointValue.toString());//添加项到测量文件列表}}}}}}//设置tableWidget行列ui.tableWidget_EntAttribute->setColumnCount(2);ui.tableWidget_EntAttribute->setRowCount(attrList.size());  ui.tableWidget_EntAttribute->setSelectionMode(QAbstractItemView::NoSelection); //设置不可选//设置tableWidget表头内容QStringList header;header.append("属性名");header.append("属性值");ui.tableWidget_EntAttribute->setHorizontalHeaderLabels(header);//ui.tableWidget_EntAttribute->verticalHeader()->setSectionResizeMode(QHeaderView::Stretch);//设置宽度自适应//ui.tableWidget_EntAttribute->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Stretch); //ui.tableWidget_EntAttribute->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Stretch);//添加数据for (int i = 0; i < attrList.size(); i++){ //item_one:属性表名 item_two:属性值auto item_one = new QTableWidgetItem(attrList[i]);item_one->setFlags(item_one->flags() & ~Qt::ItemIsEnabled & ~Qt::ItemIsSelectable); //设置不可编辑状态auto item_two = new QTableWidgetItem(attr_values[i]);item_two->setFlags(item_two->flags() & ~Qt::ItemIsEnabled & ~Qt::ItemIsSelectable);ui.tableWidget_EntAttribute->setItem(i, 0, item_one);ui.tableWidget_EntAttribute->setItem(i, 1, item_two);}//添加右键取消功能ui.listWidget_Filelist->setContextMenuPolicy(Qt::CustomContextMenu);ui.tableWidget_EntAttribute->show();
}//刷新属性表
void SonicAttribute::refreshTableWidget(iDataEntity* curentity)
{QMap<QString, QVariant> ent_attr_map; //实体属性集合ent_attr_map = curentity->getXData().toMap(); //返回实体属性集合QMap<QString, QVariant>::iterator iter = ent_attr_map.begin();QList<QString> attr_keys;QList<QString> attr_values;while (iter != ent_attr_map.end()){QString ent_key = iter.key();QString ent_value = iter.value().toString();attr_keys.append(ent_key);attr_values.append(ent_value);iter++;}for (int i = 0; i < attr_keys.size(); i++){auto item_one = new QTableWidgetItem(attr_keys[i]);item_one->setFlags(item_one->flags() & ~Qt::ItemIsEnabled & ~Qt::ItemIsSelectable); //设置不可编辑状态auto item_two = new QTableWidgetItem(attr_values[i]);item_two->setFlags(item_two->flags() & ~Qt::ItemIsEnabled & ~Qt::ItemIsSelectable);ui.tableWidget_EntAttribute->setItem(i, 0, item_one);ui.tableWidget_EntAttribute->setItem(i, 1, item_two);}
}//绝对路径转成相对路径
QString  getRelativePath(QString filepath)  //将绝对路径转成相对路径
{if (!filepath.contains(current_path)) //current_path为相对路径 {return filepath;}else{filepath.replace(current_path, "");QString relative_path = "." + filepath;return relative_path;}
}void SonicAttribute::on_listWidget_Filelist_customContextMenuRequested(const QPoint &pos)
{QListWidgetItem* curItem = ui.listWidget_Filelist->itemAt(pos);if (curItem == NULL)return;QMenu *popMenu = new QMenu(this);QAction *cancelSeed = new QAction(tr("取消关联"), this);popMenu->addAction(cancelSeed);connect(cancelSeed, SIGNAL(triggered()), this, SLOT(cancelConnect())); //取消关联popMenu->exec(QCursor::pos());delete popMenu;delete cancelSeed;
}//取消关联操作TXTDSC
void SonicAttribute::cancelConnect()
{QString remove_path;if (ui.listWidget_Filelist->currentIndex().row() != 0){remove_path = ui.listWidget_Filelist->currentItem()->text(); //ui.listWidget_Filelist->takeItem(ui.listWidget_Filelist->currentIndex().row()); //去除一个item;}if (!remove_path.isEmpty()){//移除remove_path :判断移除完的size大小QJsonObject jsonSurveyObject_bef = convertQStringToQJsonObject(surveyfilepath_copy);if (getPlotType() == FLOWPOINT){QJsonValue surveyfileValue = jsonSurveyObject_bef.take(SURVEYFILELIST_FLOWPOINT);if (surveyfileValue.isArray()){QJsonArray surveyfileArray = surveyfileValue.toArray();for (int i = 0; i < surveyfileArray.size(); i++){if (surveyfileArray.at(i).toString() == remove_path){surveyfileArray.removeAt(i);break;}}jsonSurveyObject_bef.remove(SURVEYFILELIST_FLOWPOINT);if (surveyfileArray.size() > 0){jsonSurveyObject_bef.insert(SURVEYFILELIST_FLOWPOINT, surveyfileArray);}surveyfilepath_copy = convertQJsonObjectToQString(jsonSurveyObject_bef);ent_copy->setXData("TXTDSC",surveyfilepath_copy);}}else if (getPlotType() == SONICPOINT){QJsonValue surveyfileValue = jsonSurveyObject_bef.take(SURVEYFILELIST_SONICPOINT);if (surveyfileValue.isArray()){QJsonArray surveyfileArray = surveyfileValue.toArray();for (int i = 0; i < surveyfileArray.size(); i++){if (surveyfileArray.at(i).toString() == remove_path){surveyfileArray.removeAt(i);break;}}jsonSurveyObject_bef.remove(SURVEYFILELIST_SONICPOINT);if (surveyfileArray.size() > 0){jsonSurveyObject_bef.insert(SURVEYFILELIST_SONICPOINT, surveyfileArray);}surveyfilepath_copy = convertQJsonObjectToQString(jsonSurveyObject_bef);ent_copy->setXData("TXTDSC", surveyfilepath_copy);}}}refreshTableWidget(ent_copy);//刷新属性表信息
}//关联CSV文件信息
void SonicAttribute::readFileData()
{if (getPlotType() == SONICPOINT){QString filepath = QFileDialog::getOpenFileName(NULL, "请选择数据文件", QCoreApplication::applicationFilePath(), "CSV(*.CSV)");if (filepath.isEmpty()){QMessageBox::warning(NULL, "提示", "未选择数据文件", "确定");return;}QString relativePath = getRelativePath(filepath);//得到文件的相对路径int flag = 1;for (int i = 0; i < ui.listWidget_Filelist->count(); i++){if (ui.listWidget_Filelist->item(i)->text() == relativePath){flag = 0;}}if (flag == 1){ui.listWidget_Filelist->addItem(relativePath); //添加列表if (surveyfilepath_copy.isEmpty()) //判断原先文件列表是否为空{QJsonArray surveyarray;surveyarray.insert(0, relativePath);QJsonObject surveyFilesObject;surveyFilesObject.insert(SURVEYFILELIST_SONICPOINT, surveyarray);QString surveyfilepath_add = convertQJsonObjectToQString(surveyFilesObject);surveyfilepath_copy = surveyfilepath_add;ent_copy->setXData("TXTDSC", surveyfilepath_copy);}else{QJsonObject surveyFilesObject = convertQStringToQJsonObject(surveyfilepath_copy);if (surveyFilesObject.contains(SURVEYFILELIST_SONICPOINT)){QJsonValue surveyFilesValue = surveyFilesObject.take(SURVEYFILELIST_SONICPOINT);if (surveyFilesValue.isArray()){QJsonArray surveyFilesArray = surveyFilesValue.toArray();//int surveycount = surveyFilesArray.size();surveyFilesArray.append(relativePath);//surveyFilesArray.insert(surveycount, relativePath);surveyFilesObject.remove(SURVEYFILELIST_SONICPOINT);surveyFilesObject.insert(SURVEYFILELIST_SONICPOINT, surveyFilesArray);}}else{QJsonArray surveyFilesArray;surveyFilesArray.insert(0, relativePath);surveyFilesObject.insert(SURVEYFILELIST_SONICPOINT, surveyFilesArray);}QString surveyfilepath_add = convertQJsonObjectToQString(surveyFilesObject);surveyfilepath_copy = surveyfilepath_add;ent_copy->setXData("TXTDSC", surveyfilepath_copy);}}QMainWindow *idata_window;g_pInterface->GetMainWindow(idata_window);ReadSonicPoint     sonicpoint(idata_window, relativePath);sonicpoint.setWindowTitle("查看声速点");sonicpoint.exec();}else if (getPlotType() == FLOWPOINT){QString filepath = QFileDialog::getOpenFileName(NULL, "请选择数据文件", QCoreApplication::applicationFilePath(), "TID(*.TID)");if (filepath.isEmpty()){QMessageBox::warning(NULL, "提示", "未选择数据文件", "确定");return;}QString relativePath = getRelativePath(filepath);//判断是否列表当中是否存在路径int flag = 1;for (int i = 0; i < ui.listWidget_Filelist->count(); i++){if (ui.listWidget_Filelist->item(i)->text() == relativePath){flag = 0;}}if (flag == 1){ui.listWidget_Filelist->addItem(relativePath); //添加列表if (surveyfilepath_copy.isEmpty()) //判断原先文件列表是否为空{QJsonArray surveyarray;surveyarray.insert(0, relativePath);QJsonObject surveyFilesObject;surveyFilesObject.insert(SURVEYFILELIST_FLOWPOINT, surveyarray);QString surveyfilepath_add = convertQJsonObjectToQString(surveyFilesObject);surveyfilepath_copy = surveyfilepath_add;ent_copy->setXData("TXTDSC", surveyfilepath_copy);}else{QJsonObject surveyFilesObject = convertQStringToQJsonObject(surveyfilepath_copy);if (surveyFilesObject.contains(SURVEYFILELIST_FLOWPOINT)){QJsonValue surveyFilesValue = surveyFilesObject.take(SURVEYFILELIST_FLOWPOINT);if (surveyFilesValue.isArray()){QJsonArray surveyFilesArray = surveyFilesValue.toArray();int surveycount = surveyFilesArray.size();surveyFilesArray.insert(surveycount, relativePath);surveyFilesObject.remove(SURVEYFILELIST_FLOWPOINT);surveyFilesObject.insert(SURVEYFILELIST_FLOWPOINT, surveyFilesArray);}}else{QJsonArray surveyFilesArray;surveyFilesArray.append(relativePath);surveyFilesObject.insert(SURVEYFILELIST_FLOWPOINT, surveyFilesArray);}QString surveyfilepath_add = convertQJsonObjectToQString(surveyFilesObject);surveyfilepath_copy = surveyfilepath_add;ent_copy->setXData("TXTDSC", surveyfilepath_copy);}}QMainWindow *idata_window;g_pInterface->GetMainWindow(idata_window);ReadFlowPoint  flowpoint(idata_window, relativePath);flowpoint.setWindowTitle("查看验流点");flowpoint.exec();}refreshTableWidget(ent_copy);//刷新属性表
}

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