commit (HEAD): bidi refactoring

From: Tomas Frydrych (tomasfrydrych_at_yahoo.co.uk)
Date: Fri Feb 20 2004 - 15:43:11 EST

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more of the bidi refactoring; fp_TextRun is now completely free of
references to the various text caches associated with the built-in
shaper.

Next I am going to shift all the justification code in fp_TextRun
into some virtuals in the graphics class; this will allow us to
implement proper script-dependent justification through the external
shaper. Similar fate awaits fp_TextRun::canBreakAfter/Before().

Extracted the new shaping related classes from gr_Graphics.h/cpp into
gr_RenderInfo.h/cpp. The makefiles are modified, but (as usual) not
the MSVC project files.

Fixed inconsistency in the GR_Graphics::drawChars() API: the given
offset only applied to the characters but not advances, now it
applies to both; fixed in various gr_*Graphics files I could think
of.

Tomas

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