data: Option to run only C/C++ preprocessor when indexing (issue 297)

* Added as checkbox to indexing start dialog
* Only shown for C/C++ projects
* Files will be marked incomplete

src/lib_cxx/data/indexer/IndexerCommandCxx.cpp

@@ -0,0 +1,46 @@
+#include "data/indexer/IndexerCommandCxx.h"
+
+IndexerCommandCxx::IndexerCommandCxx(
+	const FilePath& sourceFilePath,
+	const std::set<FilePath>& indexedPaths,
+	const std::set<FilePath>& excludedPaths,
+	const std::vector<FilePath>& systemHeaderSearchPaths,
+	const std::vector<FilePath>& frameworkSearchPaths,
+	const std::vector<std::string>& compilerFlags
+)
+	: IndexerCommand(sourceFilePath, indexedPaths, excludedPaths)
+	, m_systemHeaderSearchPaths(systemHeaderSearchPaths)
+	, m_frameworkSearchPaths(frameworkSearchPaths)
+	, m_compilerFlags(compilerFlags)
+	, m_preprocessorOnly(false)
+{
+}
+
+IndexerCommandCxx::~IndexerCommandCxx()
+{
+}
+
+std::vector<FilePath> IndexerCommandCxx::getSystemHeaderSearchPaths() const
+{
+	return m_systemHeaderSearchPaths;
+}
+
+std::vector<FilePath> IndexerCommandCxx::getFrameworkSearchPaths() const
+{
+	return m_frameworkSearchPaths;
+}
+
+std::vector<std::string> IndexerCommandCxx::getCompilerFlags() const
+{
+	return m_compilerFlags;
+}
+
+bool IndexerCommandCxx::preprocessorOnly() const
+{
+	return m_preprocessorOnly;
+}
+
+void IndexerCommandCxx::setPreprocessorOnly(bool preprocessorOnly)
+{
+	m_preprocessorOnly = preprocessorOnly;
+}