https://bugs.documentfoundation.org/show_bug.cgi?id=163151
Bug ID: 163151
Summary: vertical cell orientation: Chinese glyphs not
displayed as rotated
Product: LibreOffice
Version: Inherited From OOo
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Created attachment 196679
--> https://bugs.documentfoundation.org/attachment.cgi?id=196679&action=edit
test_chinese_vertical.doc: Latin characters (A B C) are displayed rotated, but
not the Chinese characters
In test_chinese_vertical.doc, the table properties are set so that the "text
flow" has a "text orientation" of "Vertical (top to bottom)". The effect is
that the characters should be rotated 90 degrees clockwise. While A, B, and C
are rotated, the Chinese glyphs are not.
OOo 3.3 already looks like this.
There is code specifically intended to address this (or a similar) situation in
vcl/source/gdi/CommonSalLayout.cxx's GenericSalLayout::LayoutText.
// Characters with U and Tu vertical orientation should
// be shaped in vertical direction. But characters
// with Tr should be shaped in vertical direction
// only if they have vertical alternates, otherwise
// they should be shaped in horizontal direction
// and then rotated.
// See http://unicode.org/reports/tr50/#vo
if (aVo == U_VO_UPRIGHT || aVo == U_VO_TRANSFORMED_UPRIGHT ||
(aVo == U_VO_TRANSFORMED_ROTATED &&
HasVerticalAlternate(aChar, aVariationSelector)))
{
aDirection = HB_DIRECTION_TTB;
}
For this particular document, if we do NOT set the direction to
HB_DIRECTION_TTB, then it displays the way we want it to.
Or, if nGlyphFlags is not set to GlyphItemFlags::IS_VERTICAL, then the Chinese
characters remain rotated.
--
You are receiving this mail because:
You are the assignee for the bug.
