- 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
