Nyall Dawson 65827adc7d Provide an optimised constructor for a null QgsRectangle
This is used a lot, yet the current constructor calls the
normalize() method which does a bunch of operations for no
result.

So instead provide a simple optimised null QgsRectangle
constructor and save a lot of cycles.

Refs #17809
2018-02-12 08:56:12 +10:00
..
2018-01-17 10:16:37 -04:00
2018-01-23 15:30:01 +11:00
2018-01-17 10:16:37 -04:00
2017-06-28 10:45:51 +02:00