Richard Grenville 1437e406c7 Improvement: Defer shadow picture generation ...

- Defer shadow picture generation to minimize interactions with X,
  hoping to boost performance.

- Fix a rendering issue caused by clip_changed in configure_win().
  Remove clip_changed altogether.

- Split generation of shadow picture from calculating its geometry.

- Cache width/height including borders in struct _win as it's frequently
  used.

2012-09-17 22:15:04 +08:00

69 KiB

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