Selections render correctly with wrapped lines.

src/atom/selection.coffee

@@ -27,7 +27,7 @@ class Selection extends View
   updateAppearance: ->
     @clearRegions()
 
-    range = @getRange()
+    range = @getScreenRange()
     return if range.isEmpty()
 
     rowSpan = range.end.row - range.start.row
@@ -70,6 +70,9 @@ class Selection extends View
     @modifySelection =>
       @cursor.setPosition(range.end)
 
+  getScreenRange: ->
+    @editor.lineWrapper.screenRangeFromBufferRange(@getRange())
+
   getText: ->
     @editor.buffer.getTextInRange @getRange()