Re: Indic scripts

Hi,
 
> I had a quick look at the code - look like one possible way would be
> modify GR_UnixGraphics::drawChars to use the xft backend of Pango

The rendering should be done through a derived class, rather than
direct modification to UnixGraphics. The GR_GraphicsFactory class
then handles the choice of class to be used.

The derived class will need to implement a number of virtual methods
which are listed in gr_Graphics.h starting at line 572, and also
derrived versions of the classes found gr_RenderInfo.h. You might
want to have a look at gr_Win32USPGraphics.h/cpp, which implements
shaping on win32, and XAP_Win32App::XAP_Win32App() on how the
graphics factory is used.

> PS (again): I have no idea on this - but can IBM ICU be used in any way
> to do the rendering ? Some quick 'n dirty information is available at
> http://oss.software.ibm.com/icu/userguide/layoutEngine.html

We have in place a generic rendering framework, so in principle any
external shaping library can be used, someone just needs to implement
an appropriate graphics class using it.

If you have any more questions, do not hesitate to ask.
Tomas
Received on Wed Jun 2 12:13:07 2004