logic: added C/C++ project setup from Code::Blocks

* also changed xml elements in sourcegroup settings that specify the used language standard, so that one sourcegroup can maintain multiple language standards
* added migration and migrated sample projects

src/lib_cxx/project/SourceGroupCxxCodeblocks.cpp

@@ -0,0 +1,106 @@
+#include "project/SourceGroupCxxCodeblocks.h"
+
+#include "data/indexer/IndexerCommand.h"
+#include "settings/ApplicationSettings.h"
+#include "settings/SourceGroupSettingsCxxCodeblocks.h"
+#include "utility/messaging/type/MessageStatus.h"
+#include "utility/codeblocks/CodeblocksProject.h"
+#include "utility/utility.h"
+#include "Application.h"
+
+SourceGroupCxxCodeblocks::SourceGroupCxxCodeblocks(std::shared_ptr<SourceGroupSettingsCxxCodeblocks> settings)
+	: m_settings(settings)
+{
+}
+
+bool SourceGroupCxxCodeblocks::prepareIndexing()
+{
+	FilePath codeblocksProjectPath = m_settings->getCodeblocksProjectPathExpandedAndAbsolute();
+	if (!codeblocksProjectPath.empty() && !codeblocksProjectPath.exists())
+	{
+		MessageStatus(L"Can't refresh project").dispatch();
+
+		if (std::shared_ptr<Application> application = Application::getInstance())
+		{
+			if (application->hasGUI())
+			{
+				application->handleDialog(
+					L"Can't refresh. The referenced Code::Blocks project does not exist anymore: " + codeblocksProjectPath.wstr(),
+					{ L"Ok" }
+				);
+			}
+		}
+		return false;
+	}
+	return true;
+}
+
+std::set<FilePath> SourceGroupCxxCodeblocks::filterToContainedFilePaths(const std::set<FilePath>& filePaths) const
+{
+	std::set<FilePath> containedFilePaths;
+
+	const std::set<FilePath> indexedPaths = utility::concat(
+		getAllSourceFilePaths(), 
+		utility::toSet(m_settings->getIndexedHeaderPathsExpandedAndAbsolute())
+	);
+
+	for (const FilePath& filePath : filePaths)
+	{
+		for (const FilePath& indexedPath : indexedPaths)
+		{
+			if (indexedPath == filePath || indexedPath.contains(filePath))
+			{
+				containedFilePaths.insert(filePath);
+				break;
+			}
+		}
+	}
+
+	return containedFilePaths;
+}
+
+std::set<FilePath> SourceGroupCxxCodeblocks::getAllSourceFilePaths() const
+{
+	std::set<FilePath> sourceFilePaths;
+	if (std::shared_ptr<Codeblocks::Project> project = Codeblocks::Project::load(
+		m_settings->getCodeblocksProjectPathExpandedAndAbsolute()
+	))
+	{
+		for (const FilePath& filePath : project->getAllSourceFilePathsCanonical(m_settings))
+		{
+			if (filePath.exists())
+			{
+				sourceFilePaths.insert(filePath);
+			}
+		}
+	}
+	return sourceFilePaths;
+}
+
+std::vector<std::shared_ptr<IndexerCommand>> SourceGroupCxxCodeblocks::getIndexerCommands(const std::set<FilePath>& filesToIndex) const
+{
+	std::vector<std::shared_ptr<IndexerCommand>> indexerCommands;
+	if (std::shared_ptr<Codeblocks::Project> project = Codeblocks::Project::load(
+		m_settings->getCodeblocksProjectPathExpandedAndAbsolute()
+	))
+	{
+		for (std::shared_ptr<IndexerCommand> indexerCommand: project->getIndexerCommands(m_settings, ApplicationSettings::getInstance()))
+		{
+			if (filesToIndex.find(indexerCommand->getSourceFilePath()) != filesToIndex.end())
+			{
+				indexerCommands.push_back(indexerCommand);
+			}
+		}
+	}
+	return indexerCommands;
+}
+
+std::shared_ptr<SourceGroupSettings> SourceGroupCxxCodeblocks::getSourceGroupSettings()
+{
+	return m_settings;
+}
+
+std::shared_ptr<const SourceGroupSettings> SourceGroupCxxCodeblocks::getSourceGroupSettings() const
+{
+	return m_settings;
+}