vcl/source/gdi/bitmapex.cxx | 1 +
vcl/source/graphic/UnoGraphicTransformer.cxx | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
New commits:
commit 4a288c136c66b4dfbb75764602520d48c39fee81
Author: Bartosz Kosiorek <gan...@poczta.onet.pl>
AuthorDate: Tue Nov 3 16:48:08 2020 +0100
Commit: Bartosz Kosiorek <gan...@poczta.onet.pl>
CommitDate: Mon Nov 16 12:36:21 2020 +0100
tdf#113163 OOXML Fix transparency and alpha channel support
In OOXML specification there is a:clrChange tag,
which change color from image, to another colour and transparency:
https://docs.microsoft.com/en-us/openspecs/office_standards/ms-oi29500/5860f816-13d3-4a83-9e63-bcd1e0808404
Unfortunately It was not working correctly.
This patch is resolving that issue
Change-Id: I85e3790f86382dca2c4798346021f480e50db6e9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/105258
Tested-by: Jenkins
Reviewed-by: Bartosz Kosiorek <gan...@poczta.onet.pl>
diff --git a/vcl/source/gdi/bitmapex.cxx b/vcl/source/gdi/bitmapex.cxx
index 14733bf4b64a..2eb3ee77b0e5 100644
--- a/vcl/source/gdi/bitmapex.cxx
+++ b/vcl/source/gdi/bitmapex.cxx
@@ -1552,6 +1552,7 @@ void BitmapEx::setAlphaFrom( sal_uInt8 cIndexFrom,
sal_Int8 nAlphaTo )
pWriteAccess->SetPixelOnData( pScanline, nX,
BitmapColor(nAlphaTo) );
}
}
+ *this = BitmapEx( GetBitmap(), aAlphaMask );
}
void BitmapEx::AdjustTransparency(sal_uInt8 cTrans)
diff --git a/vcl/source/graphic/UnoGraphicTransformer.cxx
b/vcl/source/graphic/UnoGraphicTransformer.cxx
index 2a7f6eef5a42..100e37b29a92 100644
--- a/vcl/source/graphic/UnoGraphicTransformer.cxx
+++ b/vcl/source/graphic/UnoGraphicTransformer.cxx
@@ -54,6 +54,7 @@ uno::Reference< graphic::XGraphic > SAL_CALL
GraphicTransformer::colorChange(
const sal_uInt8 cIndexFrom = aBmpColorFrom.GetIndex();
+ //TODO This code convert GdiMetafile(vector graphic) to Bitmap, which
cause to information lost
if (aGraphic.GetType() == GraphicType::Bitmap ||
aGraphic.GetType() == GraphicType::GdiMetafile)
{
@@ -62,7 +63,7 @@ uno::Reference< graphic::XGraphic > SAL_CALL
GraphicTransformer::colorChange(
if (aBitmapEx.IsAlpha())
{
- aBitmapEx.setAlphaFrom( cIndexFrom, nAlphaTo );
+ aBitmapEx.setAlphaFrom( cIndexFrom, 0xff - nAlphaTo );
aBitmapEx.Replace(aColorFrom, aColorTo, nTolerance);
aReturnGraphic = ::Graphic(aBitmapEx);
}
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