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C++ TFileStream::Free方法代码示例

本文整理汇总了C++中TFileStream::Free方法的典型用法代码示例。如果您正苦于以下问题：C++ TFileStream::Free方法的具体用法？C++ TFileStream::Free怎么用？C++ TFileStream::Free使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TFileStream的用法示例。


在下文中一共展示了TFileStream::Free方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: saveProject

//---------------------------------------------------------------------------
//сохраняет текущий проект на диск
void ProjectManager::saveProject(UnicodeString fileName)
{
	//открываем файловым поток
	TFileStream *fs = new TFileStream(fileName, fmCreate);
	try {
		//заносим текущий проетк в JSON объект
		TJSONObject *js = new TJSONObject();
		TJSONArray *criteriaNamesJSON = new TJSONArray();
		TJSONArray *alternativeNamesJSON = new TJSONArray();

		//добавляем имена критериев
		const vector<UnicodeString> &criteriaNames = getCurrentProject().getCriteriaNames();
		vector<UnicodeString>::const_iterator iter;
		for (iter = criteriaNames.begin(); iter != criteriaNames.end(); ++iter) {
			criteriaNamesJSON->Add(*iter);
		}

		js->AddPair(L"criteriaNames", criteriaNamesJSON);

		//добавляем имена альтернатив
		const vector<UnicodeString> &alternativeNames = getCurrentProject().getAlternativeNames();
		for (iter = alternativeNames.begin(); iter != alternativeNames.end(); ++iter) {
			alternativeNamesJSON->Add(*iter);
		}

		js->AddPair(L"alternativeNames", alternativeNamesJSON);

		//добавляем оценки критериев (баллы и рассчитаныый рейтинг(приоритеты))
		Estimates &criteriaEstimates = currentProject->getCriteriaEstimates();
		vector< vector<int> > &rates = criteriaEstimates.getRates();
		vector<double> &priorities = criteriaEstimates.getPriorities();

		TJSONObject *crteriaEstimatesJSON = new TJSONObject();
		TJSONArray *crteriaEstimatesArray = new TJSONArray();
		for (int i = 0; i < priorities.size(); ++i) {
			crteriaEstimatesArray->Add(FloatToStr(priorities[i]));
		}

		crteriaEstimatesJSON->AddPair(L"priorities", crteriaEstimatesArray);

		TJSONArray *crteriaRatesTable = new TJSONArray();
		for (int i = 0; i < rates.size(); ++i) {
			vector<int> &v = rates[i];
			TJSONArray *crteriaRatesRow = new TJSONArray();
			for (int j = 0; j < v.size(); ++j) {
				crteriaRatesRow->Add(IntToStr(v[j]));
			}

			crteriaRatesTable->Add(crteriaRatesRow);
		}

		crteriaEstimatesJSON->AddPair(L"rates", crteriaRatesTable);
		js->AddPair(L"criteriaEstimates", crteriaEstimatesJSON);

		//добавляем оценки альтернатив
		vector<Estimates> alternativeEstimates = getCurrentProject().getAlternativeEstimates();
		TJSONArray *tableData = new TJSONArray();
		for (int i = 0; i < alternativeEstimates.size(); i++) {
			TJSONObject *alternativeEstimatesJSON = new TJSONObject();
			TJSONArray *prioritiesJSON = new TJSONArray();

			const vector<double> &priorities = alternativeEstimates[i].getPriorities();
			for (int j = 0; j < priorities.size(); j++) {
				prioritiesJSON->Add(FloatToStr(priorities[j]));
			}

			alternativeEstimatesJSON->AddPair("priorities", prioritiesJSON);

			vector< vector<int> > &rates = alternativeEstimates[i].getRates();
			TJSONArray *alternativeRatesTable = new TJSONArray();
			for (int j = 0; j < rates.size(); ++j) {
				vector<int> &v = rates[j];
				TJSONArray *alternativeRatesRow = new TJSONArray();
				for (int k = 0; k < v.size(); ++k) {
					alternativeRatesRow->Add(IntToStr(v[k]));
				}

			alternativeRatesTable->Add(alternativeRatesRow);
			}

			alternativeEstimatesJSON->AddPair(L"rates", alternativeRatesTable);
			tableData->AddElement(alternativeEstimatesJSON);
		}

		js->AddPair(L"alternativeEstimates", tableData);
		//сохраняем имя и метод
		js->AddPair(L"projectName", getCurrentProject().getName());
		js->AddPair(L"method", IntToStr(getCurrentProject().getMethod()));
        //сохраняем JSON объект в файл как строку
		UnicodeString projectJSON = js->ToString();

		fs->Write(projectJSON.BytesOf(), projectJSON.Length());
		js->Free();

		//устанавливаем, что проект сохранён
		setIsCurrentProjectSaved(true);

	} __finally {
//.........这里部分代码省略.........
开发者ID:Mu3AHTPOn，项目名称:diplom，代码行数:101，代码来源:ProjectManager.cpp

示例2: str

//---------------------------------------------------------------------------
//загрузка проекта из файла, действия аналогичные, что и в сохранении, только
//в обратном порядке(парсим JSON объект и заполняем пустой проект)
Project & ProjectManager::loadProject(UnicodeString fileName)
{
    TFileStream *fs = new TFileStream(fileName, fmOpenRead);
	try {
		int n = fs->Size;
		char *chars = new char[n+1];

		fs->Read(chars, n);
		chars[n] = '\0';
		UnicodeString str(chars);

		TJSONObject *js = (TJSONObject*) TJSONObject::ParseJSONValue(str);

		closeProject();
		currentProject = new Project();

		TJSONArray *criteriaNamesJSON = (TJSONArray*) js->Get(L"criteriaNames")->JsonValue;
		vector<UnicodeString> &criteriaNames= getCurrentProject().getCriteriaNames();
		for (int i = 0; i < criteriaNamesJSON->Size(); ++i) {
			criteriaNames.push_back(criteriaNamesJSON->Get(i)->Value());
		}

		TJSONArray *alternativeNamesJSON = (TJSONArray*) js->Get(L"alternativeNames")->JsonValue;
		vector<UnicodeString> &alternativeNames = getCurrentProject().getAlternativeNames();
		for (int i = 0; i < alternativeNamesJSON->Size(); ++i) {
			alternativeNames.push_back(alternativeNamesJSON->Get(i)->Value());
		}

		TJSONObject *crteriaEstimatesJSON = (TJSONObject*) js->Get(L"criteriaEstimates")->JsonValue;
		TJSONArray *crteriaEstimatesArray = (TJSONArray*) crteriaEstimatesJSON->Get(L"priorities")->JsonValue;
		Estimates &criteriaEstimates = currentProject->getCriteriaEstimates();
		vector<double> &priorities = criteriaEstimates.getPriorities();
		for (int i = 0; i < crteriaEstimatesArray->Size(); ++i) {
			priorities.push_back(StrToFloat(crteriaEstimatesArray->Get(i)->Value()));
		}

		TJSONArray *crteriaRatesTable = (TJSONArray*) crteriaEstimatesJSON->Get(L"rates")->JsonValue;
		vector< vector<int> > &rates = criteriaEstimates.getRates();
		for (int i = 0; i < crteriaRatesTable->Size(); ++i) {
			vector<int> v;
			TJSONArray *crteriaRatesRow = (TJSONArray*) crteriaRatesTable->Get(i);

			for (int j = 0; j < crteriaRatesRow->Size(); ++j) {
				v.push_back(StrToInt(crteriaRatesRow->Get(j)->Value()));
			}

			rates.push_back(v);
		}

		TJSONArray *alternativeEstimatesJSON = (TJSONArray*) js->Get(L"alternativeEstimates")->JsonValue;
		vector<Estimates> &alternativeEstimates = getCurrentProject().getAlternativeEstimates();
		for (int i = 0; i < alternativeEstimatesJSON->Size(); ++i) {
			TJSONObject *alternativeJSON = (TJSONObject*) alternativeEstimatesJSON->Get(i);
			alternativeEstimates.push_back(Estimates());

			TJSONArray *prioritiesJSON = (TJSONArray*) alternativeJSON->Get(L"priorities")->JsonValue;
			vector<double> &priorities = alternativeEstimates[i].getPriorities();
			for (int j = 0; j < prioritiesJSON->Size(); ++j) {
				UnicodeString str = prioritiesJSON->Get(j)->Value();
				priorities.push_back(StrToFloat(str));
			}

			TJSONArray *alternativeRatesTable = (TJSONArray*) alternativeJSON->Get(L"rates")->JsonValue;
			vector< vector<int> > &rates = alternativeEstimates[i].getRates();
			for (int j = 0; j < alternativeRatesTable->Size(); ++j) {
				vector<int> v;
				TJSONArray *alternativeRatesRow = (TJSONArray*) alternativeRatesTable->Get(j);

				for (int k = 0; k < alternativeRatesRow->Size(); ++k) {
					v.push_back(StrToInt(alternativeRatesRow->Get(k)->Value()));
				}

				rates.push_back(v);
			}
		}

		getCurrentProject().setName(js->Get(L"projectName")->JsonValue->Value());
		getCurrentProject().setMethod(StrToInt(js->Get(L"method")->JsonValue->Value()));

		delete [] chars;
		js->Free();

		setIsProjectOpen(true);
		setIsCurrentProjectSaved(true);
		return getCurrentProject();
	} __finally {
		fs->Free();
	}

	return getCurrentProject();
}
开发者ID:Mu3AHTPOn，项目名称:diplom，代码行数:94，代码来源:ProjectManager.cpp


注：本文中的TFileStream::Free方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。