diff options
Diffstat (limited to 'vcl/source/outdev/textline.cxx')
-rw-r--r-- | vcl/source/outdev/textline.cxx | 108 |
1 files changed, 105 insertions, 3 deletions
diff --git a/vcl/source/outdev/textline.cxx b/vcl/source/outdev/textline.cxx index e52b02410ebd..f4dd135d1080 100644 --- a/vcl/source/outdev/textline.cxx +++ b/vcl/source/outdev/textline.cxx @@ -25,6 +25,7 @@ #include <vcl/outdev.hxx> #include <vcl/settings.hxx> #include <vcl/virdev.hxx> +#include <vcl/lazydelete.hxx> #include <tools/helpers.hxx> @@ -33,10 +34,70 @@ #include <basegfx/matrix/b2dhommatrixtools.hxx> #include <basegfx/polygon/WaveLine.hxx> +#include <boost/functional/hash.hpp> +#include <o3tl/lru_map.hxx> #define UNDERLINE_LAST LINESTYLE_BOLDWAVE #define STRIKEOUT_LAST STRIKEOUT_X +struct WavyLineCache final +{ + WavyLineCache () : m_aItems( 10 ) {} + + bool find( Color aLineColor, size_t nLineWidth, size_t nWaveHeight, size_t nWordWidth, BitmapEx& rOutput ) + { + Key aKey = { nWaveHeight, aLineColor.mValue }; + auto item = m_aItems.find( aKey ); + if ( item == m_aItems.end() ) + return false; + // needs update + if ( item->second.m_aLineWidth != nLineWidth || item->second.m_aWordWidth < nWordWidth ) + { + return false; + } + rOutput = item->second.m_Bitmap; + return true; + } + + void insert( const BitmapEx& aBitmap, const Color& aLineColor, const size_t nLineWidth, const size_t nWaveHeight, const size_t nWordWidth, BitmapEx& rOutput ) + { + Key aKey = { nWaveHeight, aLineColor.mValue }; + m_aItems.insert( std::pair< Key, WavyLineCacheItem>( aKey, { nLineWidth, nWordWidth, aBitmap } ) ); + rOutput = aBitmap; + } + + private: + struct WavyLineCacheItem + { + size_t m_aLineWidth; + size_t m_aWordWidth; + BitmapEx m_Bitmap; + }; + + struct Key + { + size_t m_aFirst; + size_t m_aSecond; + bool operator ==( const Key& rOther ) const + { + return ( m_aFirst == rOther.m_aFirst && m_aSecond == rOther.m_aSecond ); + } + }; + + struct Hash + { + size_t operator() ( const Key& rKey ) const + { + size_t aSeed = 0; + boost::hash_combine(aSeed, rKey.m_aFirst); + boost::hash_combine(aSeed, rKey.m_aSecond); + return aSeed; + } + }; + + o3tl::lru_map< Key, WavyLineCacheItem, Hash > m_aItems; +}; + void OutputDevice::ImplInitTextLineSize() { mpFontInstance->mxFontMetric->ImplInitTextLineSize( this ); @@ -599,6 +660,8 @@ void OutputDevice::ImplDrawStrikeoutChar( long nBaseX, long nBaseY, int nStrikeStrLen = (nWidth+(nStrikeoutWidth-1)) / nStrikeoutWidth; if( nStrikeStrLen > nMaxStrikeStrLen ) nStrikeStrLen = nMaxStrikeStrLen; + else if (nStrikeStrLen < 0) + nStrikeStrLen = 0; // build the strikeout string for( int i = nTestStrLen; i < nStrikeStrLen; ++i) @@ -1000,6 +1063,48 @@ void OutputDevice::DrawWaveLine(const Point& rStartPos, const Point& rEndPos, lo nLineWidth = 1; } + if ( fOrientation == 0.0 ) + { + static vcl::DeleteOnDeinit< WavyLineCache > snLineCache( new WavyLineCache() ); + if ( !snLineCache.get() ) + return; + WavyLineCache& rLineCache = *snLineCache.get(); + BitmapEx aWavylinebmp; + if ( !rLineCache.find( GetLineColor(), nLineWidth, nWaveHeight, nEndX - nStartX, aWavylinebmp ) ) + { + size_t nWordLength = nEndX - nStartX; + // start with something big to avoid updating it frequently + nWordLength = nWordLength < 1024 ? 1024 : nWordLength; + ScopedVclPtrInstance< VirtualDevice > pVirtDev( *this, DeviceFormat::DEFAULT, + DeviceFormat::DEFAULT ); + pVirtDev->SetAntialiasing( AntialiasingFlags::EnableB2dDraw ); + pVirtDev->SetOutputSizePixel( Size( nWordLength, nWaveHeight * 2 ), false ); + pVirtDev->SetLineColor( GetLineColor() ); + pVirtDev->SetBackground( Wallpaper( COL_TRANSPARENT ) ); +#ifdef IOS + // Stopgap workaround for some bug in the iOS-specific vcl code. + pVirtDev->SetFillColor( COL_WHITE ); + pVirtDev->DrawRect( tools::Rectangle( 0, 0, pVirtDev->GetOutputSize().Width(), pVirtDev->GetOutputSize().Height() ) ); +#endif + pVirtDev->ImplDrawWaveLineBezier( 0, 0, nWordLength, 0, nWaveHeight, fOrientation, nLineWidth ); + rLineCache.insert( pVirtDev->GetBitmapEx( Point( 0, 0 ), pVirtDev->GetOutputSize() ), GetLineColor(), nLineWidth, nWaveHeight, nWordLength, aWavylinebmp ); + } + if ( aWavylinebmp.ImplGetBitmapSalBitmap() != nullptr ) + { + Size _size( nEndX - nStartX, aWavylinebmp.GetSizePixel().Height() ); + DrawBitmapEx(Point( rStartPos.X(), rStartPos.Y() ), PixelToLogic( _size ), Point(), _size, aWavylinebmp); + } + return; + } + + ImplDrawWaveLineBezier( nStartX, nStartY, nEndX, nEndY, nWaveHeight, fOrientation, nLineWidth ); + + if( mpAlphaVDev ) + mpAlphaVDev->DrawWaveLine( rStartPos, rEndPos, nLineWidth ); +} + +void OutputDevice::ImplDrawWaveLineBezier(long nStartX, long nStartY, long nEndX, long nEndY, long nWaveHeight, double fOrientation, long nLineWidth) +{ const basegfx::B2DRectangle aWaveLineRectangle(nStartX, nStartY, nEndX, nEndY + nWaveHeight); const basegfx::B2DPolygon aWaveLinePolygon = basegfx::createWaveLinePolygon(aWaveLineRectangle); const basegfx::B2DHomMatrix aRotationMatrix = basegfx::utils::createRotateAroundPoint(nStartX, nStartY, basegfx::deg2rad(-fOrientation)); @@ -1018,9 +1123,6 @@ void OutputDevice::DrawWaveLine(const Point& rStartPos, const Point& rEndPos, lo basegfx::deg2rad(15.0), bPixelSnapHairline, this); - - if( mpAlphaVDev ) - mpAlphaVDev->DrawWaveLine( rStartPos, rEndPos, nLineWidth ); } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |