Monday, February 11, 2008

GazeMemory v0.1a on its way

The extra time spent on developing the Custom Controls for Windows Presentation Foundation (WPF) paid off. What before that took days to develop can now be build within hours. Today I put together a gaze version of the classic game Memory which is controlled by dwell-time (prologed fixation) The "table" contains 36 cards, i.e 18 unique options. By fixating on one card a smooth animation will make the globe on the front of the card to light up and after fixating long enough (500ms) if will show the symbol (flags in first version) After selecting the fist card another is fixated and the two will be compared. If they contain the same symbols then remove them from the table. If not, turn them back over again. The interface provides several feedback mechanisms. Upon glancing the border around the buttons begins to shine, when fixating long enough the dwell time function is activated and illustrated by a white glow that smoothly fades up surrounding the globe.

The Custom Control that will be named GazeButton is to be further developed to support more features such as a configurable dwell-time, feedback such as animations, colors etc. The time spent will be returned tenfold when later on. I plan to release these components as open source as soon as they reach better and more stable performance (ie. production quality with documentation)

Lessons learned so far involves Dependecy properties which is very important if you'd like to develop custom controls in WPF. Animation control and triggers and getting more into DataBinding which looks very promising so far.

Recommended guidelines for WPF custom controls
Three ways to build an image button
Karl on WPF

Screenshot of the second prototype of the my GazeMemory game

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