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batch mode
* by using variadic templates, UndoStack::push() is now responsible
for allocating undo tokens. This is avoided in batch mode.
* The old UndoStack::push(UndoToken *) method has been made private
to avoid confusion around UndoStack's API.
The old UndoStack::push() no longer needs to handle !undo.enabled,
but at least asserts on it.
* C++11 support is now required, so variadic templates can be used.
This could have also been done using manual undo.enabled checks;
or using multiple versions of the template with different numbers
of template arguments.
The latter could be done if we one day have to support a non-C++11
compiler.
However since we're depending on GCC 4.4, variadic template use should
be OK.
Clang supports it since v2.9.
* Sometimes, undo token pushing passed ownership of some memory
to the undo token. The old behaviour was relied on to reclaim the
memory even in batch mode -- the undo token was always deleted.
To avoid leaks or repeated manual undo.enabled checking,
another method UndoStack::push_own() had to be
introduced that makes sure that an undo token is always created.
In batch mode (!undo.enabled), this will however create the object
on the stack which is much cheaper than using `new`.
* Having to know which kind of undo token is to be pushed (taking ownership
or not) is inconvenient. It may be better to add static methods to
the UndoToken classes that can take care of reclaiming memory.
* Benchmarking certain SciTECO scripts have shown 50% (!!!) speed increases
at the highest possible optimization level (-O3 -mtune=native -march=native).
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* those strings can contain control characters
* the canonicalized label will automatically escape the non-printable
characters according to the same mapping used elsewhere and shows
them in "reverse" video.
* reverse video is hard to achieve in Gtk, esp. for Pango versions
that don't support transparent foregrounds
* the current implementation does not need dedicated styling for
reverse video characters; but this may be an option in order to
get it right even on older Gtk versions
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* implemented by exporting the most important Scintilla STYLEs
as CSS variables and defining named widgets for the main UI
components.
* ~/.teco_css will then apply the Scintilla styles to the
Gtk UI.
This file is also for additional tweaks, e.g. enabling
translucency.
* A fallback.css is provided which does just that and is able
to apply the terminal.tes and solarized.tes color schemes.
* Other important aspects of theming like font sizes and names
have not yet been dealt with.
(We may want to apply the corresponding Scintilla settings
to some widgets...)
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* use libtool convenience libraries as much as possible
(for all static libraries except Scintilla)
* improves separation of language and user interface implementations
(e.g. the Gtk widgets are not interesting for the rest of SciTECO)
* the Curses popup widget can now be factored out of interface-curses.cpp
* some common CPPFLAGS are now defined by ./configure via AM_CPPFLAGS,
so they don't have to be repeated in each submodule.
* fixed building the Curses UI: GTK_FLOW_BOX_FALLBACK conditional
must always be defined.
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