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This undoes the effect of pango_item_split.
We will use this in future commits.
Private for now.
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Split the post-processing off into a separate function
that can take log attrs in addition. This will allow
us to handle word starts when dealing with text transforms
for emulated Small Caps.
So far, this is all private API that is used from PangoLayout.
Please file an issue if you want to access Small Caps emulation
without PangoLayout.
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pango_itemize_with_font belongs into pango-item-private.h.
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Add a helper function that used to live with the Harfbuzz
shaping code in shape.c. It will be used in the itemize code
too, in the future.
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This broke the msvc build.
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Add a char_offset field to PangoItem, compute it as part of
itemization and update it when splitting items. Keeping this
number around cuts down on the amount of list and utf8 walking
we need to do later.
We have to do some extra shenanigans to preserve abi in the
face of pango's open-coded structs, so we introduce a
PangoItemPrivate type that is used internally. On 64bit,
PangoItem has a 4 byte whole, so we can keep the size of
PangoItemPrivate the same. No such luck on 32bit.
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