8b39fea8f8
Added a variety of functions to viewport to allow working based on block and inline direction rather than X and Y. Changed paged mode and flow mode to be based on block and inline directions, making them agnostic to writing direction. Added jump_to_cfi function to flow mode code, and use this in iframe. This fixes some issues with CFI jumping in flow mode. Use self.jump_to_cfi in iframe so that it is based on the current mode. Removed a redundant self.onscroll call that was causing CFIs to be queried twice on load, doubling the time they took. Fixed some bugs related to scrolling in flow mode related to a decorator not working with keyword arguments, by removing the keyword arguments. Fixed some bugs with flow mode visibility anchor function. CFI changes: Renamed some functions and variables to clarify meaning. Remove use of exceptions, since they were causing CFI calculation to run about six times more slowly in benchmarks. (Worst-case went from ~6 to ~1 second.) Remove forward flag and allow text offset to be equal to node length, and correct for this by adding a flag to the decoded CFI to indicate this. Added comments clarifying the results of decoding a CFI. Fix bugs in the point (now decode_with_range) function and simplified it. Added new functions that get CFI position from decoded CFIs, to replace places where this was being done in slightly different ways. Fixed some issues with cfi.pyj's scroll_to that were exposed by vertical writing support, mainly caching and using span's parent to create the start and end ranges, which causes re-creating the range to succeed. Also, don't store the span's bounding rect, since it's not needed anymore. Rewrote at_current to do a simplified scan of the viewport in the inline and then block direction.
calibre
calibre is an e-book manager. It can view, convert, edit and catalog e-books in all of the major e-book formats. It can also talk to e-book reader devices. It can go out to the internet and fetch metadata for your books. It can download newspapers and convert them into e-books for convenient reading. It is cross platform, running on Linux, Windows and macOS.
For more information, see the calibre About page
Screenshots
Usage
See the User Manual
Development
Setting up a development environment for calibre
A tarball of the source code for the current calibre release.
Bugs
Bug reports and feature requests should be made in the calibre bug tracker at launchpad. GitHub is only used for code hosting and pull requests.
Support calibre
calibre is a result of the efforts of many volunteers from all over the world. If you find it useful, please consider contributing to support its development. Donate to support calibre development.
Building calibre binaries
See Build instructions for instructions on how to build the calibre binaries and installers for all the platforms calibre supports.