This fixes a situation where LyX did not detect that something went
wrong (that an external comman crashed) and reported that export was
successful. To reproduce, use the following version of LuaTeX (the
bug in LuaTeX causing the crash has since been fixed):
LuaTeX, Version beta-0.79.1 (TeX Live 2014) (rev 4971)
Then open FeynmanDiagrams.lyx and export with PDF (LuaTeX).
In the documentation [1] for QProcess::exitCode() it states:
"This value is not valid unless exitStatus() returns NormalExit."
For more information, see:
https://www.mail-archive.com/lyx-devel@lists.lyx.org/msg185317.html
[1] http://doc.qt.io/qt-5/qprocess.html#exitCode
Building on cd8be655, we still allow viewing a produced PDF even if
there were compilation errors. However, now the user must click the
"Show Output Anyway" button in the LaTeX Errors dialog. The reason
is that before, there was a chance that the user would not realize
there was an error (because the PDF would be shown over the error
dialog). The approach in this commit makes it more clear that there
is an error.
A new LFUN is introduced, LFUN_BUFFER_VIEW_CACHE. It is useful not
just for the implementation of the "Show Output Anyway" button, but
also to show the last compiled version of a document, which can save
time if a document takes a long time to compile (e.g. heavy use of
knitr).
When at the last position in an inset, selecting to the right
should select the entire inset. This only worked if there was
already a selection (i.e. the selection was started not at the
boundary).
The behavior of this bug was changed by commit 73a7bf9d. Before
that commit, if at the last position of an inset you select to
the right, nothing is selected but the selection is set. If you
select once more to the right, because the selection is set the
needsUpdate condition is satisfied so the whole inset is selected.
Note that everything here applies also to "first position of an
inset" and selecting to the left. By "selecting", I am referring
to LFUN_{CHAR,WORD}_{FORWARD,BACKWARD}_SELECT.
In the test case the crash occured in mathml export of the temporary buffer,
because the macro was updated, and because one of the used other macros was
not copied, the macro argument was detached. However, the underlying problem
of the crash was a broken ArgumentProxy::mathMacro_ reference which became
invalid each time the ownng MathMacro was copied. In the bug test case the
copying happened due to resizing a std::vector, but any other copy would have
created the same problem. The crash did not always happen, because sometimes
the old freed memory was not immediately reused, so the invalid reference did
still point to usable data.
The fix is easy: Convert ArgumentProxy::mathMacro_ to a pointer and update it
always after creating a copy of the owner. The pimpl of MathMacro from the
previous commit helps here to distinguish between the data that can be
automatically copied (in MathMacro::Private) and the cleanup that needs to be
done manually (in MathMacro). This way, the manual copy constructor and
assigment operator of MathMacro does not need to be touched if a new member is
added.
* Remove the UndoKind parameter in the general interface
* move recordUndoInset to Cursor
* remove one variant of Undo::recordUndo.
* get rid of Text::recUndo.
The only real user was Text::insertStringAsLine, but this got changed
in commit 2c7152ab.
While not other place did read the value, there is a side effect of
setAutobreakRow that merges exiting paragraphs. However, this is used
in two situations
* some constructors, where the inset is empty;
* InsetTabular::toggleFixedWidth, which actually contains itself some
code to merge paragraphs.
Therefore the member and all associated code can be removed safely.
Rely only on InsetText::allowMultipar() to get this information.
Implement this method for InsetTabular and InsetBox.
Also rely on this method for disabling LFUN_PARAGRAPH_BREAK.
* Disable "New Inset" button
* Do not disable line edits, but use setReadOnly instead (this allows copying contents)
Fixes: #9408
Note that some dialogs still need some care.
The expanded cells of a mathmacro were previously stored in an InsetMathSqrt.
This was only used as a container for the MathData object in the first cell
of the sqrt inset, which contained the actual expanded arguments.
Funny enough, the only place were the inset property of expanded_ was really
used cannot be seen in the diff. It was MathMacro::kerning(), and this usage
was wrong, since InsetMathSqrt::kerning() always returns 0. Threfore, using
the correct type (MathData) for expanded_ does not only make the code more
readable, gets rid of an unneeded dependency, but also fixes a bug: Now the
correct kerning is returned for expanded cells. Also, expanded_ and
definition_ use the same type now, which looks nicely symmetric.
Previously, things like [ name ] where exported for computer algebra systems.
Now, the expanded macros are exported, which may still be wrong, but now the
CAS has at least a chance to understand what was meant.
Currently, only lfun names are accepeted but there are cases in which
the lfun name does not map directly to an icon. Fore example, in the
outliner, the icon named "promote" is used for the lfun outline-out.
As a result, a graphics inset is used in the documentation for describing
the corresponding icon. Now one can also use an icon name. The argument
of "info-isert icon" is firstly lookep up as an lfun. If no corresponding
icon is found, the argument is taken as the name of the icon. If no such
icon exists, the "unknown" icon is used.
The computation of length on screen depend in particular of the computation of the size of an em. Many places of the code used to rely on the width of the M character, which is not really correct:
http://en.wikipedia.org/wiki/Em_%28typography%29
In digital typography, the best value to use is the point size of the font.
* Implement FontMetrics::em(), which returns the value in pixels of the EM unit.
Convert code to use it.
* Introduce Length::inPixel(MetricsBase const &), which takes the textwidth and em information from the MetricsBase object. Convert code to use it.
* Fix several places where Length::inPixel is used without a proper em value.
* add mathed_font_em() helper function. It should eventually be removed like some other functions in MathSupport.
* Add dummy implementation of FontMetrics to tex2lyx for linking purposes.
I am moving the corresponding code directly to InsetInfo.cpp.
Moreover, the size of the image displayed by the info inset is
now dynamically set according to the text size.
This is a bug reported and fixed by Edwin Leuven.
Here is how Edwin described it in his inimitable minimalist style:
first i merge the top-left two cells in a small, say 3x3, table
if i then merge this multicolumn cell with the remaining cell in the first row
my table ends up all bonkers
This is the rersult of a discussion on the list. Now all special characters
have meaningful names, and it is clear that the LyX file syntax is not LaTeX.
Fixes crash introduced in [17e435c4/lyxgit].
editable() is more related to Texted. It is false for closed collapsable insets
Eventually the two methods should be merged.
Imagemagick detects the inut file format based on contents. Therefore it does
not make sense that we prefix the to be converted file name with the extension
(assuming that the file extension matches the imagemagick format name). This
breaks formats where the extension used by LyX does not match the imagemagick
format name.
I thought I would need it to fix bug #9418, but once backwardInset() worked
it turned out that it is not needed. However, since it took me some time to
figure out the correct implementation I do not want to throw the result away.
The concept of rows and cols is no longer unique to mathed.
Each inset decides itself whether it is grid like or not, so we should not
interfere with this in the cursor slice.
If LyX thinks the export was successful but no output file was
produced for preview, then something is wrong (most likely LyX
did not detect an error that occurred during export).
Also clean up some logic.
A PDF is often still produced after a LaTeX error.
If there was an error when exporting a PDF, we now give an error
and the PDF (if it exists), where before we gave the error and
not the PDF. The GUI and command line behaviors are consistent:
in the GUI an error is given and the PDF is viewed; on the
command line, a non-zero exit code is given and a PDF is created.
This also solves what was in my mind an inconsistency: if the user
"updated" a document and there was an error, the resulting
PDF would be shown; but if the user viewed a document and there
was an error, the document would not be shown.
Note that this applies to all output formats, not just PDF.
For discussion, see:
https://www.mail-archive.com/lyx-devel@lists.lyx.org/msg186454.html
When scanning the LaTeX log, previously we only looked ahead 10 lines
after a "!" line and if we did not find a line number we did not count
an error. This lead to the problem that templates/ACM-sigplan.lyx was
showing a successful export and the PDF was shown (it is still
created despite the error). Now that the exit code of the latex
command is checked (as of the previous commit), an error is correctly
given, but by parsing the log better with this commit, a more
informative error is given.
Increasing the look-ahead to 15 lines leads to correct parsing of
the ACM-sigplan log. The excerpt in the log file where there are more
than 10 lines in-between the "!" line and the line number is below:
! Undefined control sequence.
\@toappear ...ent http://dx.doi.org/10.1145/\@doi
<argument> ...n is removed.]\par \else \@toappear
\fi \if \@reprint
\noinden...
\@begin@tempboxa ...mpboxa #1{\color@begingroup #2
\color@endgroup }\def
\wid...
\@iiiparbox ...tempdima \@parboxrestore #5\@@par }
\ifx \relax #2\else
\setle...
\@copyrightspace ...planconf@finalpage}.\par \fi }
}\end@float
\maketitle ... \@copyrightwanted \@copyrightspace
\fi
l.34 \maketitle
Another example is posted here:
http://tex.stackexchange.com/questions/231655/lyx-cannot-output-to-pdflatex-for-a-specific-file
Systemcall::startscript returns the exit code of the LaTeX command
that is run, but the return value was not being checked by
LaTeX::run. Instead, we relied on parsing log files. However, this
parsing is not perfect.
The return value is now checked and if the exit code of the command
is non-zero, an enum value is added to the return and the user is
notified of the error.
At a higher level, if the LaTeX command returns a non-zero exit code,
in the GUI a message such as
"Error while exporting format: PDF (LuaTeX)" will be given instead of
"Successful preview of format: PDF (LuaTeX)".
When run on the commandline, lyx -e lualatex example.lyx
will give "Error: LaTeX failed" and a non-zero exit code
where before it gave a zero exit code.
A real example of the bug this commit fixes is LyX's (as of this commit)
ACM-sigplan.lyx template.
Before this commit:
$ lyx -e pdf2 ACM-sigplan.lyx
[...snip...]
support/Systemcall.cpp (288): Systemcall: 'pdflatex "ACM-sigplan.tex"'
finished with exit code 1
$ echo $?
0
Starting with this commit:
$ mylyx master -e pdf2 ACM-sigplan.lyx
support/Systemcall.cpp (288): Systemcall: 'pdflatex "ACM-sigplan.tex"'
finished with exit code 1
Error: LaTeX failed
----------------------------------------
LaTeX did not run successfully. The command that was run exited with
error.
$ echo $?
1
This was disabled in 2009 in bea0925f but it is now safe.
From Richard:
"I am pretty sure that all the work that Peter Kümmel did with the
InGuiThread classes dealt with this issue."
This commit solves two issues:
(1) A PDF from a previous run could have been the result of a command
that exited with error (e.g. sometimes pdflatex still produces a PDF if
it exits with error). If the "View" button were clicked a second time
without changing the .lyx file, then the checksum of the .tex file would
not have changed so LyX would show the PDF (which was created from the
first run that exited with error), and this time LyX would not report
the error (because the parsing of the logs only happens when the .tex
file is compiled).
(2) A myfile.tex that results in no output does not yield a myfile.pdf.
Thus, Any myfile.pdf in the temporary directory will not be overwritten.
Before this commit, the following scenario was possible: LyX runs
pdflatex which processes myfile.tex and no error is given so LyX opens
myfile.pdf. However, it could have been the scenario that pdflatex did
not exit with error and did not create myfile.pdf, in which case
whichever myfile.pdf is being shown is not correct. To see this bug in
action, start a new document, type "abc", view the PDF, delete "abc",
view the PDF (this correctly gives an error that empty output was
created), view the PDF again (this does not give an error because the
checksum has not changed). The PDF shown will contain "abc".
Note that the above also applies to DVI files and that the fix is
general.
Using fraction of points is a reasonable way to avoid warnings with fussy compilers.
Moreover, this fixes the output of PHRASE_LATEX2E to use the proper form \LaTeXe.
The file format still uses the questionnable form \\LaTeX2e.
The problem came from the fact that Qt associates Interlingua to locale C.
Now, we do not rely anymore on the Qt locale to set the language. I suspect that the problem will still exist if the system locale is ia_IA.
Fixes bug #9267.
The old scheme was:
* multiple insertions are undone by groups of 20
* multiple deletions are undone in one big block
The new scheme is to stop merging undo elements after 2 seconds of elapsed time.
Moreover, the merging of undo elements stops when the cursor has moved. Potentially, this could allow to remove many of the finishUndo() calls.
Fixes bug #9204.
It is better to introduce a dummy blank dir in TEXINPUTS rather than
appending a blank at the end. Even if I have checked that this is not
a problem with MikTeX, some other engine (maybe texlive, but I cannot
check) could not ignore this space and take it as the name of a dir.
In this case, TEXINPUTS would not end with an empty element and the
standard search path would not be inserted there.
LyX did not display the limits of the big math operators defined by
stmaryrd.sty correctly. The reason for this was a missing check in
InsetMathSymbol::metrics(), where it is hardcoded which symbols use display
style limits and which symbols use inline limits. In an ideal world this
information would be contained explicitly in lib/symbols.
This should go to branch as well.
If a mask is missing, the TempFile class appends it to the filename.
This may be a problem with applications relying on the extension,
so explicitly add a mask.
If a compressed svg icon is present, load it instead of a png one.
Also introduce two more sizes (huge and giant icons) that should be
useful when using hires displays, as svg icons automatically scale
to the desired size without loss of quality.
tex2lyx did not use the InsetLayout for the script insets, so it did not know
that it had to use Plain Layout. However, there is still a possible pitfall:
InsetScript uses a hard coded plain layout for the InsetText constructor, so
if anybody would remove ForcePlain 1 and MultiPar false from the InsetLayout
then LyX would still write script insets with plain layout, but tex2lyx would
output standard layout again.
We have some math macros that exist only because LyX can display them easily,
but which require user preamble code. These commands should not appear in
autocompletion, they are only there to make the formulas of users who actually
need thgese symbols and know what to put into the preamble more beautiful.
This avoids invoking the insert space dialog instead of the math version. Thereafter, spaces are correctly inserted inside macro templates.
This is the last part of the fix to #9432.
Additionally, move the code to write to a stream from Cursor to CursorData (so that debugging undo is easier). We loose x_target, but I am not sure it is important.
This is the second part of bug #9432.
