commit 41541825bc90dac740e424cdd41a8c997e15cdb7
author Chris Craik <ccraik@google.com> Fri May 03 16:35:54 2013 -0700
committer Android (Google) Code Review <android-gerrit@google.com> Tue May 21 23:04:05 2013 +0000
tree c06c9c12d2d67381014c22dca77f22478825e642
parent 7f43674db314ab76e77cfd2a9488058eae144aa8

Use individual glyph positions to determine text bounds.

bug:8766924

Previously text bounds were calculated to be from 0 to totalAdvance in
the X, and from the font's top to bottom. These are incorrect,
especially in light of the font fallback mechanism.

Now, we calculate the bounds of the text as we layout each glyph.
Since these are much tighter bounds in the common case, this
significantly reduces the amount of clipping required (which in turn
enables more aggressive text merging).

Change-Id: I172e5466bf5975bf837af894a9964c41db538746