[ADD] : add linux sorting for directory starting by a dot (.xxx) (jackm97@bf40515)

Author: aiekick

ImGuiFileDialog.cpp

@@ -989,6 +989,17 @@ namespace IGFD
 						if (!a.use_count() || !b.use_count())
 							return false;
 
+						// use code from https://github.com/jackm97/ImGuiFileDialog/commit/bf40515f5a1de3043e60562dc1a494ee7ecd3571
+							// strict ordering for file/directory types beginning in '.'
+							// common on Linux platforms
+						if (a->fileName[0] == '.' && b->fileName[0] != '.')
+							return false;
+						if (a->fileName[0] != '.' && b->fileName[0] == '.')
+							return true;
+						if (a->fileName[0] == '.' && b->fileName[0] == '.')
+						{
+							return (stricmp(a->fileName.c_str(), b->fileName.c_str()) < 0); // sort in insensitive case
+						}
 						if (a->fileType != b->fileType) return (a->fileType == 'd'); // directory in first
 						return (stricmp(a->fileName.c_str(), b->fileName.c_str()) < 0); // sort in insensitive case
 					});
@@ -1004,7 +1015,25 @@ namespace IGFD
 						if (!a.use_count() || !b.use_count())
 							return false;
 
-						if (a->fileType != b->fileType) return (a->fileType != 'd'); // directory in last
+						// use code from https://github.com/jackm97/ImGuiFileDialog/commit/bf40515f5a1de3043e60562dc1a494ee7ecd3571
+						// strict ordering for file/directory types beginning in '.'
+						// common on Linux platforms
+						if (a->fileName[0] == '.' && b->fileName[0] != '.')
+							return false;
+						if (a->fileName[0] != '.' && b->fileName[0] == '.')
+							return true;
+						if (a->fileName[0] == '.' && b->fileName[0] == '.')
+						{
+							return (stricmp(a->fileName.c_str(), b->fileName.c_str()) > 0); // sort in insensitive case
+						}
+						if (a->fileType != b->fileType)
+						{
+							// this code fail in c:^^Userd with the link "All users". got a invalid comparator
+							// but dont know why...
+							// if i comment that all is ok..
+							bool res = (b->fileType != 'd'); // directory in last
+							return res; // directory in last
+						}
 						return (stricmp(a->fileName.c_str(), b->fileName.c_str()) > 0); // sort in insensitive case
 					});
 			}