2018-03-15 10:24:30 +02:00
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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*/
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#ifndef INCLUDED_VCL_INC_BITMAPWRITEACCESS_HXX
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#define INCLUDED_VCL_INC_BITMAPWRITEACCESS_HXX
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#include <vcl/alpha.hxx>
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#include <vcl/bitmap.hxx>
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#include <vcl/bitmapaccess.hxx>
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Introduce o3tl::optional as an alias for std::optional
...with a boost::optional fallback for Xcode < 10 (as std::optional is only
available starting with Xcode 10 according to
<https://en.cppreference.com/w/cpp/compiler_support>, and our baseline for iOS
and macOS is still Xcode 9.3 according to README.md). And mechanically rewrite
all code to use o3tl::optional instead of boost::optional.
One immediate benefit is that disabling -Wmaybe-uninitialized for GCC as per
fed7c3deb3f4ec81f78967c2d7f3c4554398cb9d "Slience bogus
-Werror=maybe-uninitialized" should no longer be necessary (and whose check
happened to no longer trigger for GCC 10 trunk, even though that compiler would
still emit bogus -Wmaybe-uninitialized for uses of boost::optional under
--enable-optimized, which made me ponder whether this switch from
boost::optional to std::optional would be a useful thing to do; I keep that
configure.ac check for now, though, and will only remove it in a follow up
commit).
Another longer-term benefit is that the code is now already in good shape for an
eventual switch to std::optional (a switch we would have done anyway once we no
longer need to support Xcode < 10).
Only desktop/qa/desktop_lib/test_desktop_lib.cxx heavily uses
boost::property_tree::ptree::get_child_optional returning boost::optional, so
let it keep using boost::optional for now.
After a number of preceding commits have paved the way for this change, this
commit is completely mechanical, done with
> git ls-files -z | grep -vz -e '^bin/find-unneeded-includes$' -e '^configure.ac$' -e '^desktop/qa/desktop_lib/test_desktop_lib.cxx$' -e '^dictionaries$' -e '^external/' -e '^helpcontent2$' -e '^include/IwyuFilter_include.yaml$' -e '^sc/IwyuFilter_sc.yaml$' -e '^solenv/gdb/boost/optional.py$' -e '^solenv/vs/LibreOffice.natvis$' -e '^translations$' -e '\.svg$' | xargs -0 sed -i -E -e 's|\<boost(/optional)?/optional\.hpp\>|o3tl/optional.hxx|g' -e 's/\<boost(\s*)::(\s*)(make_)?optional\>/o3tl\1::\2\3optional/g' -e 's/\<boost(\s*)::(\s*)none\>/o3tl\1::\2nullopt/g'
(before committing include/o3tl/optional.hxx, and relying on some GNU features).
It excludes some files where mention of boost::optional et al should apparently
not be changed (and the sub-repo directory stubs). It turned out that all uses
of boost::none across the code base were in combination with boost::optional, so
had all to be rewritten as o3tl::nullopt.
Change-Id: Ibfd9f4b3d5a8aee6e6eed310b988c4e5ffd8b11b
Reviewed-on: https://gerrit.libreoffice.org/84128
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
2019-11-30 17:48:32 +01:00
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#include <o3tl/optional.hxx>
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2018-03-15 10:24:30 +02:00
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typedef vcl::ScopedBitmapAccess<BitmapWriteAccess, Bitmap, &Bitmap::AcquireWriteAccess>
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BitmapScopedWriteAccess;
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2019-02-08 21:56:14 +01:00
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typedef vcl::ScopedBitmapAccess<BitmapWriteAccess, AlphaMask, &AlphaMask::AcquireAlphaWriteAccess>
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2018-03-15 10:24:30 +02:00
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AlphaScopedWriteAccess;
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class VCL_DLLPUBLIC BitmapWriteAccess : public BitmapReadAccess
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{
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public:
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BitmapWriteAccess(Bitmap& rBitmap);
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virtual ~BitmapWriteAccess() override;
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void CopyScanline(long nY, const BitmapReadAccess& rReadAcc);
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void CopyScanline(long nY, ConstScanline aSrcScanline, ScanlineFormat nSrcScanlineFormat,
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2019-01-01 03:42:10 +01:00
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sal_uInt32 nSrcScanlineSize);
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2018-03-15 10:24:30 +02:00
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void CopyBuffer(const BitmapReadAccess& rReadAcc);
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void SetPalette(const BitmapPalette& rPalette)
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{
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assert(mpBuffer && "Access is not valid!");
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mpBuffer->maPalette = rPalette;
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}
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void SetPaletteEntryCount(sal_uInt16 nCount)
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{
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assert(mpBuffer && "Access is not valid!");
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mpBuffer->maPalette.SetEntryCount(nCount);
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}
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void SetPaletteColor(sal_uInt16 nColor, const BitmapColor& rBitmapColor)
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{
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assert(mpBuffer && "Access is not valid!");
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assert(HasPalette() && "Bitmap has no palette!");
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mpBuffer->maPalette[nColor] = rBitmapColor;
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}
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void SetPixel(long nY, long nX, const BitmapColor& rBitmapColor)
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{
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assert(mpBuffer && "Access is not valid!");
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assert(nX < mpBuffer->mnWidth && "x-coordinate out of range!");
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assert(nY < mpBuffer->mnHeight && "y-coordinate out of range!");
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mFncSetPixel(GetScanline(nY), nX, rBitmapColor, maColorMask);
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}
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void SetPixelIndex(long nY, long nX, sal_uInt8 cIndex)
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{
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SetPixel(nY, nX, BitmapColor(cIndex));
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}
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void SetLineColor(const Color& rColor);
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void SetFillColor();
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void SetFillColor(const Color& rColor);
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void Erase(const Color& rColor);
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void DrawLine(const Point& rStart, const Point& rEnd);
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void FillRect(const tools::Rectangle& rRect);
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void DrawRect(const tools::Rectangle& rRect);
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private:
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Introduce o3tl::optional as an alias for std::optional
...with a boost::optional fallback for Xcode < 10 (as std::optional is only
available starting with Xcode 10 according to
<https://en.cppreference.com/w/cpp/compiler_support>, and our baseline for iOS
and macOS is still Xcode 9.3 according to README.md). And mechanically rewrite
all code to use o3tl::optional instead of boost::optional.
One immediate benefit is that disabling -Wmaybe-uninitialized for GCC as per
fed7c3deb3f4ec81f78967c2d7f3c4554398cb9d "Slience bogus
-Werror=maybe-uninitialized" should no longer be necessary (and whose check
happened to no longer trigger for GCC 10 trunk, even though that compiler would
still emit bogus -Wmaybe-uninitialized for uses of boost::optional under
--enable-optimized, which made me ponder whether this switch from
boost::optional to std::optional would be a useful thing to do; I keep that
configure.ac check for now, though, and will only remove it in a follow up
commit).
Another longer-term benefit is that the code is now already in good shape for an
eventual switch to std::optional (a switch we would have done anyway once we no
longer need to support Xcode < 10).
Only desktop/qa/desktop_lib/test_desktop_lib.cxx heavily uses
boost::property_tree::ptree::get_child_optional returning boost::optional, so
let it keep using boost::optional for now.
After a number of preceding commits have paved the way for this change, this
commit is completely mechanical, done with
> git ls-files -z | grep -vz -e '^bin/find-unneeded-includes$' -e '^configure.ac$' -e '^desktop/qa/desktop_lib/test_desktop_lib.cxx$' -e '^dictionaries$' -e '^external/' -e '^helpcontent2$' -e '^include/IwyuFilter_include.yaml$' -e '^sc/IwyuFilter_sc.yaml$' -e '^solenv/gdb/boost/optional.py$' -e '^solenv/vs/LibreOffice.natvis$' -e '^translations$' -e '\.svg$' | xargs -0 sed -i -E -e 's|\<boost(/optional)?/optional\.hpp\>|o3tl/optional.hxx|g' -e 's/\<boost(\s*)::(\s*)(make_)?optional\>/o3tl\1::\2\3optional/g' -e 's/\<boost(\s*)::(\s*)none\>/o3tl\1::\2nullopt/g'
(before committing include/o3tl/optional.hxx, and relying on some GNU features).
It excludes some files where mention of boost::optional et al should apparently
not be changed (and the sub-repo directory stubs). It turned out that all uses
of boost::none across the code base were in combination with boost::optional, so
had all to be rewritten as o3tl::nullopt.
Change-Id: Ibfd9f4b3d5a8aee6e6eed310b988c4e5ffd8b11b
Reviewed-on: https://gerrit.libreoffice.org/84128
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
2019-11-30 17:48:32 +01:00
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o3tl::optional<BitmapColor> mpLineColor;
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o3tl::optional<BitmapColor> mpFillColor;
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2018-03-15 10:24:30 +02:00
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BitmapWriteAccess() = delete;
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BitmapWriteAccess(const BitmapWriteAccess&) = delete;
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BitmapWriteAccess& operator=(const BitmapWriteAccess&) = delete;
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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