This is better because it implements a LRU cache. Indeed, while editing in particular, width of many different strings has to be computed. This is different from the previous situation where only width of single characters was computed and cached.
After the str-metrics merge, the kludge for displaying symbols whose
code point corresponds to a soft-hyphen was not working anymore.
The solution is replicating the offending glyphs with index 0x00ad
at a different index. They were replicated at 0x00ac, whose glyph
was missing in all affected fonts.
However, this would not work by alone because, if a system font with
same family name exists, it would be picked up instead of the right one
(at least on non-Windows platforms). For this reason, the style of the
fonts has been changed from "Regular" to "Lyx", so that we can discriminate
the right font. However, this requires using at least Qt 4.8. If an
older Qt is used *and* a system font with same family name is already
available, the affected glyphs will all turn out on screen as the
"logical not" symbol.
I have also set the executable flag on the font files, because on Windows
they are loaded only in this case.
This solves #9229.
Thanks to maciejr we know now what the remaining problem was with bug 7954:
My unicode symbol fallback works fine, the problem was that a font named
"Symbol" is available on OS X, but it does not use the font-specific encoding
we expect: Almost all glyphs are at their unicode code point.
Therefore the bug is fixed by re-enabling the unicode workaround and blocking
the Symbol font on OS X.
addPath() always adds a slash at the end, os got a double one before.
Qt and the OS are clever enough to understand that, but a single slash
looks more nice.
This has the advantage of simplifying our code and to produce the
correct output: the small capitals should have the exact same width as
the lower case letters.
The slanted fonts are also translated to oblique on Qt side, but this
does not seems to have an effect in my testing. It may be that proper
oblique fonts need to be installed.
for possible thread conflicts, of the sort Georg resolved at
6a30211f. I have made static variables const where possible,
and marked cases that looked potentially problematic with the
comment:
// FIXME THREAD
Many of these definitely are vulnerable to concurrent access, such
as the static variables declared at the start of output_latex.cpp.
Suppose, e.g., we were outputting latex and also displaying the
source of a different document.
I'd appreciate it if others could grep for "FIXME THREAD" and see
if some of these are harmless, or what.
This extends the already existing math symbol fallback mechanism in two ways:
1) When considering the availability of the math font, also take broken
code points into account. These are currently 0x0009 and 0x00ad, depending
on the platform.
2) If the fallback symbol in the standard "Symbol" font is not given, or if
the "Symbol" font is not available, or the fallback symbol is one of the
broken ones, try to use a generic unicode symbol as second fallback instead.
If this is available, we rely on Qt to find a font which has it. Only if
this is not available, display the symbol as ERT.
This ensures that we do never get a symbol which is not displayed: Either
it can be displayed, with or without fallback, or it will be shown as ERT.
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 stmaryrd package adds support for lots of math symbols, using a font
designed to accompany the computer modern fonts. The changes in detail:
- Fix generate_symbols_list.py to work with stmaryrd.sty. It loooks like it
was automatically translated from a perl version and never used.
- Generate the new symbols in lib/symbols using generate_symbols_list.py and
add some manual adjustments
- Generate stmary10.ttf by a simple ttf export from stmary10.sfd with fontforge
- Add license info for stmary10.ttf
- Create a test file with all symbols from stmaryrd.sty. Actually it would be
nice to have this for the other fonts as well.
- The mechanics: lyx2lyx, tex2lyx, font machinery etc.
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
* 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
* src/frontends/qt4/GuiFontLoader.{cpp,h}
(GuiFontLoader::GuiFontLoader): don't store font IDs anymore,
as we are not going to clean up after ourselves.
(GuiFontLoader::~GuiFontLoader): make it virtual again and
do nothing (avoids a crash with fontconfig < 2.2.92).
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20246 a592a061-630c-0410-9148-cb99ea01b6c8
xft-fonts package is still required. However, on *nix there seem
to be no way to tell fontconfig to prefer our fonts instead of
others matching the requirements, so, in case of conflict, the
fontconfig files should be manually adjusted, or some existing
font package used (note that the quality of the bakoma fonts is
better than that of the xft ones). There is no such problem on
Windows where our private fonts are always preferred over the
installed ones (and I hope the same holds true for Mac).
* src/LyX.cpp
(LyX::exec): don't call addFontResources() and restoreFontResources()
anymore, as the frontend code will do the job.
* src/frontends/qt4/GuiFontLoader.{cpp,h}
(GuiFontLoader::GuiFontLoader): register math fonts with Qt.
(GuiFontLoader::~GuiFontLoader): unregister math fonts.
* src/support/os.h
* src/support/os_unix.cpp
* src/support/os_win32.cpp
* src/support/os_cygwin.cpp:
remove code dealing with fonts.
* configure.ac: don't check for fontconfig headers anymore.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20128 a592a061-630c-0410-9148-cb99ea01b6c8
bug is fixed in Qt an upper version bound should be added.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18647 a592a061-630c-0410-9148-cb99ea01b6c8
