Implement the track view

[Henrik Heimbuerger]

Implement the view that shows a track rendered with the SWT GC.

The first version would probably use a static image as background (later to be replaced with individual images of track parts that have been rotated and placed as described by the track file) and draw simple 'cars' (dots or rectangles) on top of that.

[Henrik Heimbuerger]

Some potentially helpful links:

Introduction to SWT:

​http://www.eclipse.org/swt/eclipse.php

Drawing with the GC:

​http://www.eclipse.org/articles/Article-SWT-graphics/SWT_graphics.html
​http://www.eclipse.org/articles/Article-SWT-images/graphics-resources.html

[SVN]

New commit by hheimbuerger (revision [67]):
[In preparation of #18 and #5] Improved in-memory data structures for storing the slot car track.

The Track class has been extended by some methods (most of which aren't implemented yet) and a new class TrackSection? has been created that is supposed to represent one section of the whole track.

Also added three section bitmaps for testing, taken from the track bitmap Fabi found somewhere. These are of course not the final images, only placeholders.

[SVN]

New commit by hheimbuerger (revision [68]):
[Partial fix for #5] Added early version of a real track view.

An early version of the track view has been created. While this is in fact already using seperate images for the sections and does take its track data from the in-memory data structure, how it is using the data structure has to be overhauled majorly in the future. Also, the track is currently defined inside the track view for testing purposes.

It's already possible to pan the view by holding the right mouse button and the display is also double-buffered.

[Henrik Heimbuerger]

​http://forums.sun.com/thread.jspa?messageID=10307518 might be helpful when rotation by arbitrary angles is needed.