Filebrowser + thumbnail viewer + http server

Expanded example based on lxn's excellent walk win32 libraries https://github.com/lxn/walk filebrowser example, adding many new features.

Why?

I'm trying to explore golang's capabilities and performance in developing a multithreaded and memory intensive windows desktop app. For inspiration and comparison, I used my old application, Antares12 which was built using Delphi2007. So far golang didn't disappoint!

To download Antares12, go to https://dl.dropboxusercontent.com/u/15522093/antares121setup.zip

Features:

Image browser, displaying thumbnail of images in a grid.
Image http server, serving thumbnail of images in a folder. Use http://localhost:8080/users/albums or http://localhost:8080/users/photos while the app is running.
Very fast and efficient multi threaded thumbnail processing with goroutines and channels.
Resizeable thumbnail size.
Filesystem/directory monitoring for changes (new/delete/renamed/modified files)

Golang's features explored here:

Goroutine, channels and synchronizations.
Maps, slices
cgo interfacing with external c libs
Database interface with sqlite3
Image processing (drawings/transforms)

Additional fabulous golang libraries used here:

Status and observations:

Go language constructs comfortably matched object pascal (delphi) constructs.
Many low level routines can easily be converted to golang.
Goroutines and channels are truly handy in handling concurrent tasks.
Performance in performing cpu and memory intensive operations is excellent. Comparable and sometimes better than delphi.
Memory comsumption is larger than delphi/32bit, but not by much. No optimization on my part yet.
So far so good...

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