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.
* 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
* lyxfunc.h:
- theLyXFunc(): new function in the global namespace.
- lyx::dispatch(): new function in the lyx namespace.
- lyx::getStatus(): new function in the lyx namespace.
* bufferlist.h:
- theBufferList(): new function in the global namespace.
* Clipboard.h:
- theClipboard(): new function in the global namespace.
* Selection.h:
- theSelection(): new function in the global namespace.
* FontLoader.h:
- theFontLoader(): new function in the global namespace.
* FontMetrics.h:
- theFontMetrics(LyXFont const &): new function in the global namespace.
* Application.C: implements the functions defined above.
* LyXView.h:
- getLyXFunc(): deleted.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15298 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
* frontends/FontLoader.h: new interface class.
* frontends/Application.h: new FontLoader() pure virtual method
* frontends/lyx_gui: update_fonts() and font_available() methods deleted
* [qt3/qt4/gtk]/GuiApplication: implement the new interface
* qt4/GuiFontLoader:
- renamed from FontLoader
- now derives from FontLoader
- now in the lyx::frontend namespace
* qt3/qfont_loader
- now derives from FontLoader
* gtk/xftFontLoader
- now derives from FontLoader
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15220 a592a061-630c-0410-9148-cb99ea01b6c8
