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.
Gcc 4.7 warns that this kind of narrowing is illegal in C++11, so
we can just as well fix that right now.
In GuiFontMetrics this is fixed by chaning the types in the AscendDescend struct
from short int to int.
In ParagraphMetrics it is fixed by addint explicit casts.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@40586 a592a061-630c-0410-9148-cb99ea01b6c8
http://bugzilla.lyx.org/show_bug.cgi?id=3759
It also simplifies and fix the smallcaps case which was not correct WRT unicode. Even though I don't know if toUpper() means something in the non ucs2 range.
FYI, I used toqstr() to do the ucs4 -> ucs2 conversion when needed. This helper method works only with Qt >= 4.2.
* GuiFontMetrics::smallcapsWidth(): changed to work with single ucs4 characters.
* GuiFontMetrics::xxx(): make sure that font metrics works with characters not in the ucs2 range.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18593 a592a061-630c-0410-9148-cb99ea01b6c8
* FontMetrics.h: only one string width() method.
* Painter.h: only one text() method.
* all other files: adapt to above API change.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17362 a592a061-630c-0410-9148-cb99ea01b6c8
* introduce defaultDimension() and dimension() in preparation of Dimension class cleanup.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16165 a592a061-630c-0410-9148-cb99ea01b6c8
- ucs4_to_qchar(): add a FIXME and an assertion
* GuiFontMetrics: replace the table based cache with two QHash based cache. With this change, the speed overhead is not negligible (exact same score with the UserGuide test) and the required additional memory is minimal (maybe one or two megabytes).
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16132 a592a061-630c-0410-9148-cb99ea01b6c8
- add constants instead of hard-coded values.
- add assertions and comments for out of range values.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16126 a592a061-630c-0410-9148-cb99ea01b6c8
http://bugzilla.lyx.org/show_bug.cgi?id=2900
The only drawback is that it requires about 20Mo extra-memory when loading the UserGuide. If it turns out to be too much, we can switch to a QHash based solution instead of a table.
* dimension.[Ch]:
- Dimension(LyXFont const, char_typec): new ctor
- set(LyXFont const & font, char_type c): new method.
* frontends/FontMetrics.h:
- width(char_type): is now a pure virtual method.
* GuiFontMetrics:
- CharMetrics: new structure;
- the metrics cache now also cache ascent and descent. This is especially useful for mathed.
* MathSupport.[Ch]:
- mathed_char_dim(): deleted. We now use Dimension::set() directly instead.
* rowpainter.C: fixe empty space.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16124 a592a061-630c-0410-9148-cb99ea01b6c8
* QLPainter::paintText(): use GuiFontMetrics::metrics(QString) to avoid an ucs4 to QString conversion.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15584 a592a061-630c-0410-9148-cb99ea01b6c8
Basically, I replaced all methods in the font_metrics namespace by a proper virtual interface FontMetrics. The FontLoader is _the_ container for FontMetrics.
This patch should also bring some optimizations in a number of place in the code. This is because we do not need any more to search for the LyXFont at each font_metrics call. In effect, the speed advantage is not as sensible and this is a bit deceiving considering that this was my primary motivation behind the patch. But I like the patch anyway as it cleans up the relation and interfacing between fonts, metrics and frontends.
* frontends/FontMetrics.h: new virtual interface. Renamed from font_metrics.h
* qt4/GuiFontMetrics: corresponding qt4 implememtation. Renamed from qfont_metrics.C. The smallCaps particular case treatment has been transfered here as well as the width cache for MacOSX and Windows.
* qt4/QLPainter.C: the smallCapsText has been reworked to return the width of the drawn text.C
all other files: replace font_metric helper function call with corresponding FontMetrics method calls.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15265 a592a061-630c-0410-9148-cb99ea01b6c8
