This requires to change many docstrings into std::strings. The logic behind that
is that they represent a fixed set of math fonts, and therefore “string” means
here “poor man's enum” rather than text (this is consistent with MetricsBase).
Profiling of scrolling inside a document over macro-instensive areas:
Before the patch:
44,1% BufferView::updateMetrics()
-> 34,8% InsetMathHull::metrics()
-> 9,8% FontSetChanger::FontSetChanger()
28,4% BufferView::draw()
After the patch:
35,3% BufferView::updateMetrics()
-> 27,2% InsetMathHull::metrics
-> 0,4% FontSetChanger::FontSetChanger()
47,5% BufferView::draw()
FontSetChanger::FontSetChanger() is made 41x less expensive (with reference
BV::draw()) just by removing this conversion. The remaining 0,4% could be
squished by replacing the strings with a proper enum, but this is premature. Of
course, this only treats the symptoms: there is no good reason that this
function is called 45500 times over the time of 40 repaints.
RefChanger temporarily assigns a value to a non-const reference of any
kind. RefChanger provides a flexible and uniform generalisation of the various
scope guards previously derived from the old Changer class in MetricsInfo.h.
As before, a temporary assignment lasts as long as the Changer object lives. But
the new Changer is movable. In particular, contorsions are no longer needed to
change a private field. Special code can be moved into the appropriate classes,
and it is no longer necessary to create a new class for each specific use.
Syntax change:
FontSetChanger dummy(mi.base, value);
-> Changer dummy = mi.base.changeFontSet(value);
New function for generating arbitrary Changers:
Changer dummy = make_change(ref, val, condition);
Bugfix:
* Fix the display of \displaystyle{\substack{\frac{xyz}{}}} (missing style
change).
These were all found by cppcheck. Even in constructors that are there "only
because of std containers" the class should be initialized correctly. You can
never know whether such an object does not get used, and then a nice crash
caused by dereferencing a NULL-pointer is better than undefined behaviour.
\mathbb{\underbar{a}} is not correctly rendered on screen.
We really have to change the font set, but not always.
This cannot be done using an "if" statement, as when
the FontSetChanger scope ends, everything is restored,
defeating our change. Thus, this has to be done in the
FontSetChanger class itself. This is easily accomplished
by introducing a boolean with a default value of true
for really changing a font set.
This will also be useful in other cases that I am discovering.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@34312 a592a061-630c-0410-9148-cb99ea01b6c8
in mathed, so implement a strategy which is immune to color changes.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@34311 a592a061-630c-0410-9148-cb99ea01b6c8
such as \mathbf{\hat{a}} would not be correctly rendered on screen.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@34297 a592a061-630c-0410-9148-cb99ea01b6c8
I'm not happy about having what is basically the same enum in
BufferParams.h and OutputParams.h, but I don't see how to unify them
without either (a) including BufferParams.h in OutputParams.h, which is
ugly or (b) creating some new file just containing this enum, which
seems like overkill. Any other ideas?
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@33967 a592a061-630c-0410-9148-cb99ea01b6c8
Math manual loads and save correctly it seems but expect some instability period.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@31898 a592a061-630c-0410-9148-cb99ea01b6c8
- add support for \ddddot
- add partial support for inverse diagonal dots (i. e. they are recognized and
displayed correctly, but the needed package is not loaded, because it would
need an off/auto/on setting as amsmath, and that calls for a general solution)
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@30162 a592a061-630c-0410-9148-cb99ea01b6c8
http://bugzilla.lyx.org/show_bug.cgi?id=1527
* src/mathed/*.cpp:
- Track mode (math or text) when outputting latex code and
properly wrap commands that are in the wrong mode with
either \ensuremath or \lyxmathsym.
* src/mathed/MathParser.cpp:
- Parse \ensuremath and \lyxmathsym, such that exported latex
produces the same result when imported back.
- Replace latex commands with corresponding unicode symbols.
* src/Encoding.cpp:
- Implement Encodings::fromLaTeXCommand() for converting either
a single or a sequence of latex commands to unicode symbols.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@25270 a592a061-630c-0410-9148-cb99ea01b6c8
Now support/* should have no dependencies on src/* anymore.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21851 a592a061-630c-0410-9148-cb99ea01b6c8
- get rid of the cached Dimension. Text inset dimensions are saved in ParagraphMetrics and mathed maintain their own dimension where needed.
- width(), ascent(), descent(): deleted.
- dimension(): now needs a valid BufferView.
- metrics(): now void.
* BufferView::getCoveringInset(): simplify.
* ParagraphMetrics(): now cache inset dimensions.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20420 a592a061-630c-0410-9148-cb99ea01b6c8
