hwhw/kindlepdfviewer — pull request #489 by chrox (2012-10-24 12:58:32+00:00)
Title: isolate doc settings of koptreader from pdfreader/djvureader

`koptreader` interprets `self.globalzoom` differently from `pdfreader`/`djvureader`. I isolated the variable `self.globalzoom` in `koptreader` and use another variable `self.kopt_zoom` so that when switching between `koptreader` and `pdfreader`/`djvureader` zoom values are stored independently in doc settings. I also introduced a new variable `self.kopt_gamma` which will have different visual effect from `self.gamma` in the future.