include/vcl/BitmapTools.hxx | 2
svx/source/svdraw/svdfmtf.cxx | 83 --------------------------------------
vcl/source/bitmap/BitmapTools.cxx | 70 ++++++++++++++++++++++++++++++++
3 files changed, 74 insertions(+), 81 deletions(-)
New commits:
commit 14d49662d32fa2fcf2916682dbf1f974a8eecb08
Author: Noel Grandin <noel.gran...@collabora.co.uk>
Date: Wed Mar 14 17:13:42 2018 +0200
move some GDI import code from svx to vcl
part of making ScopedWriteAccess an internal detail of vcl
Change-Id: I916f2ca05c9d7c17b62c91e113df6d8454bb4351
Reviewed-on: https://gerrit.libreoffice.org/51283
Reviewed-by: Michael Meeks <michael.me...@collabora.com>
Tested-by: Jenkins <c...@libreoffice.org>
diff --git a/include/vcl/BitmapTools.hxx b/include/vcl/BitmapTools.hxx
index d7525869320f..7dde62788a53 100644
--- a/include/vcl/BitmapTools.hxx
+++ b/include/vcl/BitmapTools.hxx
@@ -92,6 +92,8 @@ VCL_DLLPUBLIC BitmapEx CanvasTransformBitmap( const BitmapEx&
rBitmap,
::basegfx::B2DRectangle const & rDestRect,
::basegfx::B2DHomMatrix const &
rLocalTransform );
+VCL_DLLPUBLIC void DrawAlphaBitmapAndAlphaGradient(BitmapEx & rBitmapEx, bool
bFixedTransparence, float fTransparence, AlphaMask & rNewMask);
+
}} // end vcl::bitmap
#endif // INCLUDED_VCL_BITMAP_TOOLS_HXX
diff --git a/svx/source/svdraw/svdfmtf.cxx b/svx/source/svdraw/svdfmtf.cxx
index 457095f6adc0..f3806362aba6 100644
--- a/svx/source/svdraw/svdfmtf.cxx
+++ b/svx/source/svdraw/svdfmtf.cxx
@@ -71,6 +71,7 @@
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <svx/svditer.hxx>
#include <svx/svdogrp.hxx>
+#include <vcl/BitmapTools.hxx>
using namespace com::sun::star;
@@ -1557,87 +1558,7 @@ void
ImpSdrGDIMetaFileImport::DoAction(MetaFloatTransparentAction const & rAct)
}
else
{
- // mix existing and new alpha mask
- AlphaMask aOldMask;
-
- if(aBitmapEx.IsAlpha())
- {
- aOldMask = aBitmapEx.GetAlpha();
- }
- else if(TransparentType::Bitmap ==
aBitmapEx.GetTransparentType())
- {
- aOldMask = aBitmapEx.GetMask();
- }
- else if(TransparentType::Color ==
aBitmapEx.GetTransparentType())
- {
- aOldMask =
aBitmapEx.GetBitmap().CreateMask(aBitmapEx.GetTransparentColor());
- }
-
- AlphaMask::ScopedWriteAccess pOld(aOldMask);
-
- if(pOld)
- {
- const double fFactor(1.0 / 255.0);
-
- if(bFixedTransparence)
- {
- const double fOpNew(1.0 - fTransparence);
-
- for(long y(0); y < pOld->Height(); y++)
- {
- Scanline pScanline = pOld->GetScanline( y );
- for(long x(0); x < pOld->Width(); x++)
- {
- const double fOpOld(1.0 -
(pOld->GetIndexFromData(pScanline, x) * fFactor));
- const sal_uInt8 aCol(basegfx::fround((1.0 -
(fOpOld * fOpNew)) * 255.0));
-
- pOld->SetPixelOnData(pScanline, x,
BitmapColor(aCol));
- }
- }
- }
- else
- {
- AlphaMask::ScopedReadAccess pNew(aNewMask);
-
- if(pNew)
- {
- if(pOld->Width() == pNew->Width() &&
pOld->Height() == pNew->Height())
- {
- for(long y(0); y < pOld->Height(); y++)
- {
- Scanline pScanline = pOld->GetScanline( y
);
- for(long x(0); x < pOld->Width(); x++)
- {
- const double fOpOld(1.0 -
(pOld->GetIndexFromData(pScanline, x) * fFactor));
- const double fOpNew(1.0 -
(pNew->GetIndexFromData(pScanline, x) * fFactor));
- const sal_uInt8
aCol(basegfx::fround((1.0 - (fOpOld * fOpNew)) * 255.0));
-
- pOld->SetPixelOnData(pScanline, x,
BitmapColor(aCol));
- }
- }
- }
- else
- {
- OSL_ENSURE(false, "Alpha masks have different
sizes (!)");
- }
-
- pNew.reset();
- }
- else
- {
- OSL_ENSURE(false, "Got no access to new alpha mask
(!)");
- }
- }
-
- pOld.reset();
- }
- else
- {
- OSL_ENSURE(false, "Got no access to old alpha mask (!)");
- }
-
- // apply combined bitmap as mask
- aBitmapEx = BitmapEx(aBitmapEx.GetBitmap(), aOldMask);
+ vcl::bitmap::DrawAlphaBitmapAndAlphaGradient(aBitmapEx,
bFixedTransparence, fTransparence, aNewMask);
}
}
diff --git a/vcl/source/bitmap/BitmapTools.cxx
b/vcl/source/bitmap/BitmapTools.cxx
index 6e1ed624a049..f29989b9cab2 100644
--- a/vcl/source/bitmap/BitmapTools.cxx
+++ b/vcl/source/bitmap/BitmapTools.cxx
@@ -467,6 +467,76 @@ BitmapEx CanvasTransformBitmap( const BitmapEx&
rBitmap,
}
+void DrawAlphaBitmapAndAlphaGradient(BitmapEx & rBitmapEx, bool
bFixedTransparence, float fTransparence, AlphaMask & rNewMask)
+{
+ // mix existing and new alpha mask
+ AlphaMask aOldMask;
+
+ if(rBitmapEx.IsAlpha())
+ {
+ aOldMask = rBitmapEx.GetAlpha();
+ }
+ else if(TransparentType::Bitmap == rBitmapEx.GetTransparentType())
+ {
+ aOldMask = rBitmapEx.GetMask();
+ }
+ else if(TransparentType::Color == rBitmapEx.GetTransparentType())
+ {
+ aOldMask =
rBitmapEx.GetBitmap().CreateMask(rBitmapEx.GetTransparentColor());
+ }
+
+ {
+ AlphaMask::ScopedWriteAccess pOld(aOldMask);
+
+ assert(pOld && "Got no access to old alpha mask (!)");
+
+ const double fFactor(1.0 / 255.0);
+
+ if(bFixedTransparence)
+ {
+ const double fOpNew(1.0 - fTransparence);
+
+ for(long y(0); y < pOld->Height(); y++)
+ {
+ Scanline pScanline = pOld->GetScanline( y );
+ for(long x(0); x < pOld->Width(); x++)
+ {
+ const double fOpOld(1.0 -
(pOld->GetIndexFromData(pScanline, x) * fFactor));
+ const sal_uInt8 aCol(basegfx::fround((1.0 - (fOpOld *
fOpNew)) * 255.0));
+
+ pOld->SetPixelOnData(pScanline, x, BitmapColor(aCol));
+ }
+ }
+ }
+ else
+ {
+ AlphaMask::ScopedReadAccess pNew(rNewMask);
+
+ assert(pNew && "Got no access to new alpha mask (!)");
+
+ assert(pOld->Width() == pNew->Width() && pOld->Height() ==
pNew->Height() &&
+ "Alpha masks have different sizes (!)");
+
+ for(long y(0); y < pOld->Height(); y++)
+ {
+ Scanline pScanline = pOld->GetScanline( y );
+ for(long x(0); x < pOld->Width(); x++)
+ {
+ const double fOpOld(1.0 -
(pOld->GetIndexFromData(pScanline, x) * fFactor));
+ const double fOpNew(1.0 -
(pNew->GetIndexFromData(pScanline, x) * fFactor));
+ const sal_uInt8 aCol(basegfx::fround((1.0 - (fOpOld *
fOpNew)) * 255.0));
+
+ pOld->SetPixelOnData(pScanline, x, BitmapColor(aCol));
+ }
+ }
+ }
+
+ }
+
+ // apply combined bitmap as mask
+ rBitmapEx = BitmapEx(rBitmapEx.GetBitmap(), aOldMask);
+}
+
}} // end vcl::bitmap
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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