Starting at 61b2bd5e, boost::bind was progressively replaced with
std::bind. They are not interchangeable though. boost::bind implements
the tracking of boost::signals{,2}::trackable objects. Now that
std::bind has completely replaced boost::bind, tracking never occurred.
This commit replaces boost::signals2::trackable with the new preferred
boost::signals2 methods: scoped_connections or slot::track_foreign. The
support::Trackable class introduced is less safe but easier for transitioning
old code.
Fixes the crash at #8261.
Addressing #10481.
This patch adds the new 'needauth' option for converters launching
external programs that are capable of running arbitrary code on behalf
of the user. These converters won't be run unless the user gives explicit
authorization, which is asked on-demand when the converter is about to
be run (question is not asked if the file is cached and calling the
converter is not needed).
The user prompt has a 3rd button so that he/she's not prompted again
for (any converter over) the same document (identified through
buffer->absFileName()).
Two preference options are added:
lyxrc.use_converter_needauth_forbidden disables any converter with
the 'needauth' option, which is meant to force user to an explicit
action via the preferences pane, before being able to use advanced
converters that can potentially bring security threats;
lyxrc.use_converter_needauth enables prompting the user for 'needauth'
converters, or bypasses the check if not enabled, falling back to the
previous behavior.
So, the first option is for maximum security, the second is for
maximum usability.
Boost.Signals is deprecated. This fixes bug #9943.
The only thing left to do is to rewrite (or get rid of) the boost -mt test
in config/lyxinclude.m4 not to use signals anymore.
We have been here before. The png files are generated, but then by the time we preview the document, they are gone. This is because (a) when the PreviewLoader for a Buffer is deleted, it removes all its previews and (b) we export in a clone, so that Buffer gets deleted before the preview is actually shown. So we need to check whether we are a preview for a clone before we delete anything.
Add display_pixel_ratio to buffer params to use it for displays with high resolution.
It holds the highest ratio between physical pixels and device-independent pixels of the LyX application.
Preview snippets will be generated using this value to get high resolution preview.
I guess this deserves to be sorted out better, because we are doing tricky things by deleted the object from itself.
Problem:
PreviewImage? has a member PreviewLoader?. PreviewImage::Impl::statusChanged() calls PreviewLoader::remove. PreviewLoader::Impl::remove removes a snippet from the cache. In the cache is a map of the snippet and a shared pointer to PreviewImage?. This means that removing the snippet from the cache, destroys the PreviewImage?. When we get back to PreviewImage::Impl::statusChanged() this will start to crash.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@37681 a592a061-630c-0410-9148-cb99ea01b6c8
allow this as a fallback. E.g., if we're unable to export as MathML,
then we try to export as an image.
There are several ways, I am sure, in which this implementation is not
ideal.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@34993 a592a061-630c-0410-9148-cb99ea01b6c8
Solution: don't use boost::bind for msvc10 (could also be extended to several GCC versions)
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@34257 a592a061-630c-0410-9148-cb99ea01b6c8
