The goal of this patch is to be able to properly remove the space
needed for markers in the case of insets that are inside macros and do
not need these markers. This was attempted at 9a9a6a8, but did not
work reliably.
To this end, the following simplifications are made:
* instead of drawing its own markers, each inset has a virtual method
marker() which prescribes either NO_MARKER, MARKER (normal bottom
marker) or MARKER2 (top and bottom marker). All explicit calls to
(draw|metrics)Markers(|2) are removed.
* the space necessary for the markers is now counted in the
before/above margins in the row structure. Therefore painting will
not happen at (x + 1, y), but just (x,y).
* the methods drawDecoration are removed.
* the helper methods InsetMath::(draw|metrics)Markers(|2) are removed
and replaced by a new function drawMarkers in MathRow.cpp.
Now the marker type is kept in the MathRow::Element object (and set to
NO_MARKER in not editable context) and the marker is accounted for in
MathRow::(metrics|draw).
Moreover, the extra pixel for the marker is taken on the before/After
space if possible. The marker will only require extra space when
before/after is 0.
See comment 168 of #8883 to understand what issues are fixed.
This helper method is used to set the inset position cache at drawing
time. However this is already done by the drawing code itself
(MathRow::draw, RowPainter::paintInset), so that there is no need to
do this same work again in a different place.
Note that the inset positions are still set in InsetTabular::draw for
each cell.
This commit comes with a mild risk attached (it might be that some of
these calls were useful after all!), but all of this is fixable.
In fact having an extra parameter "bool cond" is no longer useful because it can
now always be emulated with a ternary operator:
Changers dummy = cond ? do_change() : Changer();
* Factor code for easier maintainance.
* Avoid computing metrics several times. This duplication explained the
exponential blowup during the metrics phase for nested fractions (see
b2b87330). This happened in particular when using lyxproofs which heavily uses
nested \dfracs for on-screen drawing.
* Call MetricsBase::changeScript instead of MetricsBase::changeFrac for
\nicefrac and \unitfrac.
Move math style to FontInfo and compute the font sizes for scriptstyle and
scriptscriptstyle according to standard proportions: 0.73 and 0.55.
This is simpler and more accurate. It also fixes the font size of
${\scriptscriptstyle {\textstyle A}}A$ which exposed the limitations of the
previous approach.
There is no reason to reserve pixel space in macros replacement text,
which is not editable. This makes macros more compact and eases the
writing of lib/symbols.
* introduce new InsetMath::drawMarkers and friends that do nothing
when nested inside a macro. This required to move macro_nesting
inside MetricsBase, and to pass MetricsInfo & to metricsMarkers.
* keep track of nesting when drawing rows or macros.
This done according to the TeXbook. This class replaces the individual
isMathXXX() methods. The mathClass() method (currently unused) is
provided for the following insets:
* InsetMathChar (with a revised list of affected characters)
* InsetMathSymbol: the class is given by the `extra' field
Operators defined in lib/symbols (e.g. \log) are MC_OP
* InsetMathFrac is MC_INNER (except nicefrac and units)
* InsetDelimiters is MC_INNER
* InsetStackrel is MC_REL
* The class of InsetScript is the class of the last element of its
nucleus (yes, it is a hack, but doing it right is more work).
Remove the explicit spacing that was done in the different insets. The spacing
will be reintroduced properly in a forthcoming commit.
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).
The FIXME is not needed, this is how StyleChanger and FracChanger work:
In the constructor, they change the state of the FontInfo, and in the
destructor the state is set back. Therefore, all code that needs the changed
state, needs to be executed while the objects do still exist.
by Jan Paul Imhoff. The problem was that we were assuming (as we still
do in some places) that there are always at least two cells.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@38717 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
- InsetMathFrac.cpp/h:
- InsetCFrac, InsetDFrac, and InsetTFrac are now included as kind of InsetMathFrac
- InsetDBinom and InsetTBinum are now included as kind of InsetMathBinom
- support for the optional argument of \cfrac (cursor position still needs to be fixed, see post in mailing list)
- stdtoolbars.inc:
- add entries for \cfrac
- remove entry for \atop since atop is outdated and only in LaTeX2e for compatibility reasons (according to the LaTeX companion, you get warnings from amsmath in the LaTeX log when using atop)
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@29114 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
This is the final patch (at least for now). This one deals with the idxFoo
methods in the math insets. The previous patches in the series are r21128,
r21244 and r21448.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21449 a592a061-630c-0410-9148-cb99ea01b6c8
* Font::FontBits -> FontInfo
* Font::FONT_XXX -> all enums transfered to FontEnums.h and renamed to FontXxx
I've replaced Font uses with FontInfo were the language() member was not needed, basically all draw() and metrics methods. There's one problematic cases with InsetQuotes which I solved by taking the Buffer main language.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21240 a592a061-630c-0410-9148-cb99ea01b6c8
