[GRASS-dev] [GRASS GIS] #3013: support background and border for d.legend

[GRASS GIS]

#3013: support background and border for d.legend
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  Reporter:  annakrat    |      Owner:  grass-dev@…
      Type:              |     Status:  new
  enhancement            |
  Priority:  normal      |  Milestone:  7.3.0
 Component:  Display     |    Version:  svn-trunk
Resolution:              |   Keywords:  d.legend, background, gsoc2016,
       CPU:              |  cartography
  Unspecified            |   Platform:  All
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Comment (by lazaa):

 Replying to [comment:2 annakrat]:
 > Replying to [comment:1 lazaa]:
 > > I added {{{-b}}} flag to display legend background. Then
 {{{brdcolor}}} to choose border color. So far it works only for non-
 categoric rasters and displays only border color but no background. I draw
 background at the end of the script when I know position of legend, title
 and all labels at the display. But when I want draw background, the
 background rectangular overlaps all. Is there any option how to define not
 to overlap other lines? Or the only solution is to draw background
 rectangular first?
 >
 > Look at the other d.* modules with background - how they do it. But I am
 afraid you might have to draw it first, so you would need to do the
 computations twice.

 It seems that I have to draw background first :(. Currently all
 calculation is in main function. I would move all calculation into a new
 function and add one parameter to decide whether to draw or
 not. First time I would call the function to get position, second time to
 draw it. New function should be in separate file or it doesn't matter?

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3013#comment:3>
GRASS GIS <https://grass.osgeo.org>