Method: WindowBlessing::WindowRedrawAreas#<<

Defined in:
lib/window_blessing/window_redraw_areas.rb

#<<(area) ⇒ Object

first pass merging algorithm: merge all overlapping areas with area until no overlapping areas This creates a non-overlapping set of areas, but it may be much bigger total area than before. TODO - for “two-point” overlaps - just shrink one of the rectangles so they don’t overlap but still cover the same area



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# File 'lib/window_blessing/window_redraw_areas.rb', line 14

def <<(area)
  overlapping, non_overlapping = @areas.partition {|a| a.overlaps?(area)}
  while overlapping.length > 0
    overlapping.each {|a| area &= a}
    overlapping, non_overlapping = non_overlapping.partition {|a| a.overlaps?(area)}
  end
  @areas = non_overlapping + [area]
end