ui: improved file nodes

* added colors for file nodes and dependency edges
* use TokenComponentFilePath on file nodes to store FilePath

src/lib/data/graph/token_component/TokenComponentFilePath.cpp

@@ -0,0 +1,20 @@
+#include "data/graph/token_component/TokenComponentFilePath.h"
+
+TokenComponentFilePath::TokenComponentFilePath(const FilePath& path)
+	: m_path(path)
+{
+}
+
+TokenComponentFilePath::~TokenComponentFilePath()
+{
+}
+
+std::shared_ptr<TokenComponent> TokenComponentFilePath::copy() const
+{
+	return std::make_shared<TokenComponentFilePath>(*this);
+}
+
+const FilePath& TokenComponentFilePath::getFilePath() const
+{
+	return m_path;
+}

src/lib/data/graph/token_component/TokenComponentFilePath.h

@@ -0,0 +1,23 @@
+#ifndef TOKEN_COMPONENT_FILE_PATH_H
+#define TOKEN_COMPONENT_FILE_PATH_H
+
+#include "utility/file/FilePath.h"
+
+#include "data/graph/token_component/TokenComponent.h"
+
+class TokenComponentFilePath
+	: public TokenComponent
+{
+public:
+	TokenComponentFilePath(const FilePath& path);
+	virtual ~TokenComponentFilePath();
+
+	virtual std::shared_ptr<TokenComponent> copy() const;
+
+	const FilePath& getFilePath() const;
+
+private:
+	const FilePath m_path;
+};
+
+#endif // TOKEN_COMPONENT_FILE_PATH_H