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/*
# 2D geometry values
There are lots of issues when supporting multiple toolkit plugin
geometries. The geometries vary widely especially between the
graphical displays and the serial console ones. [Graphical Widget](http://en.wikipedia.org/Graphical_Widget)
To simplyfy this, we stick to using the concepts:
------------------------------ ^
| top | |
| | |
| left right | height
| | |
| bottom | |
------------------------------ v
<----------- width ---------->
This way, width & height are always positive numbers.
The qustion of (top,bottom) & (left,right) becomes problematic.
In almost every toolkit, right > left. However, top & bottom
vary and a choice can not be made easily. Luckily, we maybe do
not have to make that decision here and can pass that determination
to the toolkits. So, we use excusively:
geom(left, right, top, bottom)
size(width, height)
# Orientation
Horizontal means layout widgets like books on a bookshelf
---------------------------------
| W | W | W | W | W | W | W | W |
| i | i | i | i | i | i | i | i |
| d | d | d | d | d | d | d | d |
| g | g | g | g | g | g | g | g |
| e | e | e | e | e | e | e | e |
| t | t | t | t | t | t | t | t |
---------------------------------
Vertical means layout widgets like books in a stack
----------
| Widget |
----------
| Widget |
----------
| Widget |
----------
| Widget |
----------
*/
package widget
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