Ok, looks like I'm not alone in this matter:) This is a good thing - users can choose one of the suitable libraries: pure lua/love+ui or lquery+ui.

Little example of my idea. UI has style file, widget renderer (based on styles), event system (from lQuery), layouts, that contains and places child elements. There will be horisontal and vertical layouts. Styles like CSS (paddings, margins, border, color, fonts, backgroundImage and so on). http://o...

The source code of engine is very complicated, I had to choose another engine to be modified. But LUA language and LOVE API are very simple, try to download tutorials.

Rich text editor most difficult thing I think.

I thnk 99% of all GUI's will select images to display widgets...

I have 6 fps (very laggy). I think you create new font object every frame. This variant creates a new font using the default font and the size specified, and sets it as the current font. Do not use this function in love.update or love.draw. That would create a new font every frame, eating up memory ...

New version: http://ompldr.org/vOTk3eg
- bug fixes
- gems selection
- two ways to swap gems

I like the graphics a lot. I don't know if you plan on making a full game but if you do, you would need to add some sort of selection indicator. Kinda hard to tell which gem is currently selected. Other than that, it looks pretty good. I'll think about adding a few options for swapping gems. Graphi...

Insead, you don't need to create event system, maybe you will want to animate your widgts. I take the example of JQuery/jQuery UI

Allow me to introduce you a little Match 3 game. The game was written for the day (or rather, night) and well demonstrates the possibility of "fake" multithreading in lQuery. The game is only about 300 lines of code, but it is difficult (perhaps) to understand because of the asynchronous p...