* Convert the kerning into a proper right margin for mathnormal, mathscr and
mathcal (fonts with \fontdimen2 == 0 as per rule 17 from TeXBook).
* Simulate the fact that characters in mathnormal fonts have a 0-width left
bearing.
* Implement subscript positioning in the case of rule 17 using negative italic
correction (kerning_).
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.
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).
each failure.
There are several places I was not sure what to do. These are marked
by comments beginning "LASSERT:" so they can be found easily. At the
moment, they are at:
Author.cpp:105: // LASSERT: What should we do here?
Author.cpp:121: // LASSERT: What should we do here?
Buffer.cpp:4525: // LASSERT: Is it safe to continue here, or should we just return?
Cursor.cpp:345: // LASSERT: Is it safe to continue here, or should we return?
Cursor.cpp:403: // LASSERT: Is it safe to continue here, or should we return?
Cursor.cpp:1143: // LASSERT: There have been several bugs around this code, that seem
CursorSlice.cpp:83: // LASSERT: This should only ever be called from an InsetMath.
CursorSlice.cpp:92: // LASSERT: This should only ever be called from an InsetMath.
LayoutFile.cpp:303: // LASSERT: Why would this fail?
Text.cpp:995: // LASSERT: Is it safe to continue here?
The toolbar image is the one Uwe attached to the bug report. Note that
\sideset works only for operators like \sum in the nucleus. LyX allows
any content, so you might get a LaTeX error. I don't know how to prevent
wrong content in the nucleus.
The mhchem package treats the caret both as a shorthand for \uparrow or
as a superscript operator according to whether it is surrounded by
spaces or not. The \ce and \cf insets allow inserting spaces but there
is no provision for inserting a space after the caret, which is always
considered by LyX as a superscript operator. The solution here is to
insert a space after the caret if the superscript is empty or an empty
brace inset.
Mathed does not allow empty superscripts, so an empty brace has to be
inserted when working in LyX. On the other hand, when importing latex
code, an empty superscript is retained.
This has no effect whatsoever for normal latex code, as a space after
the caret is ignored. In any case, the output is only changed if an
empty brace inset is used as superscript. Specifically, the output is
changed from "^{{}}" to "^ {}".
changing limits status (fixes bug #8007)
* InsetMathScript::getStatus (new) : handle properly status for LFUN_MATH_LIMITS here, along with checkmark support for the menu)
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@40700 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
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
places, i.e.
- BufferView::setMouseCursor,
- BufferView::mouseEventDispatch
- LyXFunc::dispatch
Before it was called from several dispatch handlers in the middle of the
dispatch process. Because the cursor might get invalidated, this is
not a good idea. We had plenty of crashes and odd behaviours because
of this as nobody really understood those cases.
This fixes (at least) #2069 and #4163.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@23140 a592a061-630c-0410-9148-cb99ea01b6c8
cursor is inside of an empty script.
* Do not use the cur parameter of notifyCursorLeaves as a pointer to
the script inset. It is not. Even worth, it's an empty cursor if the user
clicks in the grey nirvana of the BufferView.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@22910 a592a061-630c-0410-9148-cb99ea01b6c8
any case when leaving the script inset. Before there were cases (like
when emptying both scripts and then leaving the inset) to leave the
script inset such that empty script were kept.
* Force a paragraph redraw when removing a script. This will remove
the space after an inset which got the scripts removed. Moreover
this fixes some assert because the script body might not be in the
coordinate cache after the script inset was removed.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@22907 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
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
