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