add func to path manager. fix bitmap handler. add general bitmap handler getter

LibCmo/CK2/MgrImpls/CKPathManager.hpp

@@ -14,9 +14,10 @@ namespace LibCmo::CK2::MgrImpls {
 		
 		/**
 		 * @brief Set the temp folder of current context.
-		 * @param u8_temp 
+		 * @param u8_temp The temp folder you need to assign
+		 * @return true if success.
 		*/
-		void SetTempFolder(CKSTRING u8_temp);
+		bool SetTempFolder(CKSTRING u8_temp);
 		/**
 		 * @brief Get current temp folder.
 		 * @return 
@@ -29,15 +30,32 @@ namespace LibCmo::CK2::MgrImpls {
 		*/
 		std::string GetTempFilePath(CKSTRING u8_filename);
 		
+		/**
+		 * @brief Add extra path for ResolveFileName
+		 * @param u8path The added path.
+		 * @return true if success.
+		*/
+		bool AddPath(CKSTRING u8path);
+		/**
+		 * @brief Clear all extra path.
+		*/
+		void ClearPath();
+
 		/**
 		 * @brief Finds a file in the paths
 		 * @param u8_filename[inout] The given file path. overwritten by the final path if success.
+		 * @remark
+		 * We match file in following order.
+		 *		+ Whether given file is absolute path. return if true.
+		 *		+ User provided extra path.
+		 *		+ Virtools temp folder.
 		 * @return true if success
 		*/
 		bool ResolveFileName(std::string& u8_filename);
 
 	protected:
 		std::filesystem::path m_TempFolder;
+		XContainer::XArray<std::filesystem::path> m_ExtraPathes;
 	};
 
 }