Fix wrong value set in Preferences->Performance->"Define Large File Size"

Use correct type for file size variables.

Fix #13280, close #13290

PowerEditor/src/Parameters.cpp

@@ -5731,8 +5731,8 @@ void NppParameters::feedGUIParameters(TiXmlNode *node)
 		{
 			int fileSizeLimit4StylingMB = 0;
 			element->Attribute(TEXT("fileSizeMB"), &fileSizeLimit4StylingMB);
-			if (fileSizeLimit4StylingMB > 0 && fileSizeLimit4StylingMB < 4096)
-				_nppGUI._largeFileRestriction._largeFileSizeDefInByte = (fileSizeLimit4StylingMB * 1024 * 1024);
+			if (fileSizeLimit4StylingMB > 0 && fileSizeLimit4StylingMB <= 4096)
+				_nppGUI._largeFileRestriction._largeFileSizeDefInByte = (static_cast<int64_t>(fileSizeLimit4StylingMB) * 1024 * 1024);
 
 			const TCHAR* boolVal = element->Attribute(TEXT("isEnabled"));
 			if (boolVal != NULL && !lstrcmp(boolVal, TEXT("no")))

PowerEditor/src/WinControls/Preference/preferenceDlg.cpp

@@ -5166,7 +5166,7 @@ intptr_t CALLBACK PerformanceSubDlg::run_dlgProc(UINT message , WPARAM wParam, L
 				if (lstrcmp(str, TEXT("")) == 0)
 					return TRUE;
 				
-				size_t fileLenInMB = ::GetDlgItemInt(_hSelf, IDC_EDIT_PERFORMANCE_FILESIZE, NULL, FALSE);
+				int64_t fileLenInMB = ::GetDlgItemInt(_hSelf, IDC_EDIT_PERFORMANCE_FILESIZE, NULL, FALSE);
 
 				if (fileLenInMB > 4096)
 				{
@@ -5195,7 +5195,7 @@ intptr_t CALLBACK PerformanceSubDlg::run_dlgProc(UINT message , WPARAM wParam, L
 					return TRUE;
 				}
 
-				size_t fileLenInMB = ::GetDlgItemInt(_hSelf, IDC_EDIT_PERFORMANCE_FILESIZE, NULL, FALSE);
+				int64_t fileLenInMB = ::GetDlgItemInt(_hSelf, IDC_EDIT_PERFORMANCE_FILESIZE, NULL, FALSE);
 
 				if (fileLenInMB == 0)
 				{