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jdorje: Implement a function get_tile_boundaries tha...: msg#00048

Subject: jdorje: Implement a function get_tile_boundaries tha...
This is an automated notification of a change to freeciv cvs, 
on Thu Apr 15 12:36:00 PDT 2004 = Thu Apr 15 19:36:01 2004 (GMT)
by Jason Dorje Short <jshort@xxxxxxxxxxxxxx>

---- Files affected:

freeciv/client mapview_common.c mapview_common.h
freeciv/client/gui-gtk gui_main.c mapview.c
freeciv/client/gui-gtk-2.0 gui_main.c mapview.c
freeciv/client/gui-win32 mapview.c
freeciv/client/gui-xaw gui_main.c

---- Log message:
      Tag: HEAD

Implement a function get_tile_boundaries that returns the corners of a
boundary of a tile, and tells whether this boundary actually exists and is
on the tile.

This simplifies the logic of drawing the map grid, national borders,
coastlines, city selection rectangles, and unavailable city tiles.  Several
buglets are also fixed: for instance the map grid used to be drawn for the
citydlg in iso-view but not in non-iso view.

Patch by me in PR#8507, with additional comments.




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