Bookmark flipping mode is toggled when long-holding the upper-right
corner of the screen. In this mood both the flipping icon and the dogear
icon are shown. And swiping west and east in this mode will flipping
only on bookmarked pages. Currently only pdf/djvu readers are supported.
This should implement feature request in #154.
In regional zoom mode double tap will zoom to the tapped
region(paragraph or column, etc., detected optically via libk2pdfopt).
As the first demo, this feature is only turned on in flipping mode by
tapping the top-left corner of the screen. Eventually we may incorporate
this feature in "free" zoom mode.
Turn off "show overlap" by default since scroll mode can replace it
in most cases where "show overlap" is used. And the dimmed area often
make new users confused. It's better to leave this feature to more
advanced users.
As swiping north/south will generate several pan gestures which will
set refresh mode to WAVEFORM_MODE_A2, we should explicitly do a full
refresh in order to switch refresh waveform from WAVEFORM_MODE_A2
to WAVEFORM_MODE_GC16 as in OnPanRelease.
Page position is a fractional number ranging from 0 to 1, indicating the read percentage on
certain page. With the position information on each page whenever users change font size,
page margin or line spacing or close and reopen the book, the page view will be roughly the same.
By tapping on the upper left corner of the reader one can toggling flipping mode on/off.
In flipping mode swiping right/down and left/up will paging backward and forward
accordingly with pages proportional to swiping distance.
* add notIntersectWith method for Geom
* add math.roundAwayFromZero in geometry.lua
* Readerview:recalculate now signals ViewRecalculate event.
For now, this event is only usefull for ReaderPaging
