svx: add rendering for semi-transparent shape text

The color's alpha is normally lost when we roundtrip SvxColorItem's
tools Color via TextSimplePortionPrimitive2D's basegfx::BColor.

One way would be to add an extra transparency member to the primitive,
like BackgroundColorPrimitive2D does that.

However, a much easier way is to go via UnifiedTransparencePrimitive2D,
that way we handle transparency in
drawinglayer::impBufferDevice::paint(), rather than platform-specific
code like CairoTextRender::DrawTextLayout() in the Linux case.

Change-Id: Ie7aebe77ad9ac776dd27fc50538a5045200c8010
Reviewed-on: https://gerrit.libreoffice.org/83307
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins
(cherry picked from commit 81b0d5393ca4cf2ff0954e53b05928cde047c2e0)

0 files changed, 0 insertions, 0 deletions