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authorTor Lillqvist <tml@iki.fi>2011-07-24 00:49:42 +0300
committerTor Lillqvist <tml@iki.fi>2011-07-24 00:51:04 +0300
commit9cd2558f47b84cc60e3ec08127885c0317586e7b (patch)
tree789d0e017b92691bfd6cc94c0ff79299feaf8416 /vcl/ios/source/gdi
parenteacd6b0e487ef8f0de2c385a287774d9adaf84be (diff)
More iOS baby steps
Diffstat (limited to 'vcl/ios/source/gdi')
-rw-r--r--vcl/ios/source/gdi/salgdi.cxx2476
-rw-r--r--vcl/ios/source/gdi/salvd.cxx260
2 files changed, 2736 insertions, 0 deletions
diff --git a/vcl/ios/source/gdi/salgdi.cxx b/vcl/ios/source/gdi/salgdi.cxx
new file mode 100644
index 000000000000..e627c76fe8fe
--- /dev/null
+++ b/vcl/ios/source/gdi/salgdi.cxx
@@ -0,0 +1,2476 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_vcl.hxx"
+
+#include "osl/file.hxx"
+#include "osl/process.h"
+
+#include "osl/mutex.hxx"
+
+#include "rtl/bootstrap.h"
+#include "rtl/strbuf.hxx"
+
+#include "basegfx/range/b2drectangle.hxx"
+#include "basegfx/polygon/b2dpolygon.hxx"
+#include "basegfx/polygon/b2dpolygontools.hxx"
+#include "basegfx/matrix/b2dhommatrix.hxx"
+#include "basegfx/matrix/b2dhommatrixtools.hxx"
+
+#include "vcl/sysdata.hxx"
+#include "vcl/svapp.hxx"
+
+#include "ios/salconst.h"
+#include "ios/salgdi.h"
+#include "ios/salbmp.h"
+#include "ios/salframe.h"
+#include "ios/salcolorutils.hxx"
+#include "ios/salctfontutils.hxx"
+
+#include "fontsubset.hxx"
+#include "impfont.hxx"
+#include "region.h"
+#include "sallayout.hxx"
+#include "sft.hxx"
+
+
+using namespace vcl;
+
+typedef std::vector<unsigned char> ByteVector;
+
+
+// =======================================================================
+
+ImplIosFontData::ImplIosFontData( const ImplDevFontAttributes& rDFA, CTFontRef pFontRef )
+: ImplFontData( rDFA, 0 )
+, mpFontRef( pFontRef )
+, mpCharMap( NULL )
+, mbOs2Read( false )
+, mbHasOs2Table( false )
+, mbCmapEncodingRead( false )
+, mbHasCJKSupport( false )
+, mbFontCapabilitiesRead( false )
+{
+}
+
+// -----------------------------------------------------------------------
+
+ImplIosFontData::~ImplIosFontData()
+{
+ if( mpCharMap )
+ mpCharMap->DeReference();
+}
+
+// -----------------------------------------------------------------------
+
+sal_IntPtr ImplIosFontData::GetFontId() const
+{
+ return (sal_IntPtr)mpFontRef;
+}
+
+// -----------------------------------------------------------------------
+
+ImplFontData* ImplIosFontData::Clone() const
+{
+ ImplIosFontData* pClone = new ImplIosFontData(*this);
+ if( mpCharMap )
+ mpCharMap->AddReference();
+ return pClone;
+}
+
+// -----------------------------------------------------------------------
+
+ImplFontEntry* ImplIosFontData::CreateFontInstance(ImplFontSelectData& rFSD) const
+{
+ return new ImplFontEntry(rFSD);
+}
+
+// -----------------------------------------------------------------------
+
+inline FourCharCode GetTag(const char aTagName[5])
+{
+ return (aTagName[0]<<24)+(aTagName[1]<<16)+(aTagName[2]<<8)+(aTagName[3]);
+}
+
+static unsigned GetUShort( const unsigned char* p ){return((p[0]<<8)+p[1]);}
+static unsigned GetUInt( const unsigned char* p ) { return((p[0]<<24)+(p[1]<<16)+(p[2]<<8)+p[3]);}
+
+const ImplFontCharMap* ImplIosFontData::GetImplFontCharMap() const
+{
+ // return the cached charmap
+ if( mpCharMap )
+ return mpCharMap;
+
+ // set the default charmap
+ mpCharMap = ImplFontCharMap::GetDefaultMap();
+ mpCharMap->AddReference();
+
+ // get the CMAP raw data
+ CFDataRef pData = CTFontCopyTable( mpFontRef, kCTFontTableCmap, kCTFontTableOptionNoOptions );
+ if( pData == NULL )
+ return mpCharMap;
+
+ // parse the CMAP
+ CmapResult aCmapResult;
+ if( !ParseCMAP( CFDataGetBytePtr( pData ), CFDataGetLength( pData ), aCmapResult ) ) {
+ CFRelease( pData );
+ return mpCharMap;
+ }
+ CFRelease( pData );
+
+ mpCharMap = new ImplFontCharMap( aCmapResult );
+ mpCharMap->AddReference();
+ return mpCharMap;
+}
+
+bool ImplIosFontData::GetImplFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const
+{
+ // read this only once per font
+ if( mbFontCapabilitiesRead )
+ {
+ rFontCapabilities = maFontCapabilities;
+ return !rFontCapabilities.maUnicodeRange.empty() || !rFontCapabilities.maCodePageRange.empty();
+ }
+ mbFontCapabilitiesRead = true;
+
+ // prepare to get the GSUB table raw data
+ CFDataRef pData = CTFontCopyTable( mpFontRef, kCTFontTableGSUB, kCTFontTableOptionNoOptions );
+ if( pData != NULL )
+ {
+ vcl::getTTScripts(maFontCapabilities.maGSUBScriptTags, CFDataGetBytePtr( pData ), CFDataGetLength( pData ) );
+ CFRelease( pData );
+ }
+ pData = CTFontCopyTable( mpFontRef, kCTFontTableOS2, kCTFontTableOptionNoOptions );
+ if( pData != NULL )
+ {
+ vcl::getTTCoverage(
+ maFontCapabilities.maUnicodeRange,
+ maFontCapabilities.maCodePageRange,
+ CFDataGetBytePtr( pData ), CFDataGetLength( pData ) );
+ CFRelease( pData );
+ }
+ rFontCapabilities = maFontCapabilities;
+ return !rFontCapabilities.maUnicodeRange.empty() || !rFontCapabilities.maCodePageRange.empty();
+}
+
+// -----------------------------------------------------------------------
+
+void ImplIosFontData::ReadOs2Table( void ) const
+{
+ // read this only once per font
+ if( mbOs2Read )
+ return;
+ mbOs2Read = true;
+
+ // get the OS/2 raw data
+ CFDataRef pData = CTFontCopyTable( mpFontRef, kCTFontTableOS2, kCTFontTableOptionNoOptions );
+ if( pData == NULL )
+ return;
+
+ mbHasOs2Table = true;
+
+ // parse the OS/2 raw data
+ // TODO: also analyze panose info, etc.
+
+ // check if the fonts needs the "CJK extra leading" heuristic
+ const sal_uInt32 nVersion = GetUShort( CFDataGetBytePtr( pData ) );
+ if( nVersion >= 0x0001 )
+ {
+ sal_uInt32 ulUnicodeRange2 = GetUInt( CFDataGetBytePtr( pData ) + 46 );
+ if( ulUnicodeRange2 & 0x2DF00000 )
+ mbHasCJKSupport = true;
+ }
+ CFRelease( pData );
+}
+
+void ImplIosFontData::ReadIosCmapEncoding( void ) const
+{
+ // From the ATS framework, not present in the iOS SDK. Define only
+ // the enum values actually used here to avoid copy-pasteing too
+ // much...
+
+ enum {
+ kFontMacintoshPlatform = 1,
+ };
+
+ enum {
+ kFontJapaneseScript = 1,
+ kFontTraditionalChineseScript = 2,
+ kFontChineseScript = kFontTraditionalChineseScript,
+ kFontKoreanScript = 3,
+ kFontSimpleChineseScript = 25,
+ };
+
+ // read this only once per font
+ if( mbCmapEncodingRead )
+ return;
+ mbCmapEncodingRead = true;
+
+ CFDataRef pData = CTFontCopyTable( mpFontRef, kCTFontTableCmap, kCTFontTableOptionNoOptions );
+ DBG_ASSERT( (pData!=NULL), "ImplIosFontData::ReadIosCmapEncoding : CTFontCopyTable failed!\n");
+ if( pData == NULL )
+ return;
+
+ if ( CFDataGetLength( pData ) < 24 ) {
+ CFRelease( pData );
+ return;
+ }
+ if( GetUShort( CFDataGetBytePtr( pData ) ) != 0x0000 ) {
+ CFRelease( pData );
+ return;
+ }
+
+ // check if the fonts needs the "CJK extra leading" heuristic
+ int nSubTables = GetUShort( CFDataGetBytePtr( pData ) + 2 );
+
+ for( const unsigned char* p = CFDataGetBytePtr( pData ) + 4; --nSubTables >= 0; p += 8 )
+ {
+ int nPlatform = GetUShort( p );
+ if( nPlatform == kFontMacintoshPlatform ) {
+ int nEncoding = GetUShort (p + 2 );
+ if( nEncoding == kFontJapaneseScript ||
+ nEncoding == kFontTraditionalChineseScript ||
+ nEncoding == kFontKoreanScript ||
+ nEncoding == kFontSimpleChineseScript )
+ {
+ mbHasCJKSupport = true;
+ break;
+ }
+ }
+ }
+ CFRelease( pData );
+}
+
+// -----------------------------------------------------------------------
+
+bool ImplIosFontData::HasCJKSupport( void ) const
+{
+ ReadOs2Table();
+ if( !mbHasOs2Table )
+ ReadIosCmapEncoding();
+
+ return mbHasCJKSupport;
+}
+
+// =======================================================================
+
+IosSalGraphics::IosSalGraphics()
+ : mpFrame( NULL )
+ , mxLayer( NULL )
+ , mrContext( NULL )
+ , mpXorEmulation( NULL )
+ , mnXorMode( 0 )
+ , mnWidth( 0 )
+ , mnHeight( 0 )
+ , mnBitmapDepth( 0 )
+ , mnRealDPIX( 0 )
+ , mnRealDPIY( 0 )
+ , mfFakeDPIScale( 1.0 )
+ , mxClipPath( NULL )
+ , maLineColor( COL_WHITE )
+ , maFillColor( COL_BLACK )
+ , mpIosFontData( NULL )
+ , mnRotation( 0 )
+ , mfFontStretch( 1.0 )
+ , mbNonAntialiasedText( false )
+ , mbPrinter( false )
+ , mbVirDev( false )
+ , mbWindow( false )
+{
+ // create the style object for font attributes
+ mpAttributes = [NSMutableDictionary dictionary];
+}
+
+// -----------------------------------------------------------------------
+
+IosSalGraphics::~IosSalGraphics()
+{
+/*
+ if( mnUpdateGraphicsEvent )
+ {
+ Application::RemoveUserEvent( mnUpdateGraphicsEvent );
+ }
+*/
+ CGPathRelease( mxClipPath );
+ [mpAttributes release];
+
+ if( mpXorEmulation )
+ delete mpXorEmulation;
+
+ if( mxLayer )
+ CGLayerRelease( mxLayer );
+ else if( mrContext && mbWindow )
+ {
+ // destroy backbuffer bitmap context that we created ourself
+ CGContextRelease( mrContext );
+ mrContext = NULL;
+ // memory is freed automatically by maOwnContextMemory
+ }
+}
+
+bool IosSalGraphics::supportsOperation( OutDevSupportType eType ) const
+{
+ bool bRet = false;
+ switch( eType )
+ {
+ case OutDevSupport_TransparentRect:
+ case OutDevSupport_B2DClip:
+ case OutDevSupport_B2DDraw:
+ bRet = true;
+ break;
+ default: break;
+ }
+ return bRet;
+}
+
+// =======================================================================
+
+void IosSalGraphics::updateResolution()
+{
+ DBG_ASSERT( mbWindow, "updateResolution on inappropriate graphics" );
+
+ initResolution( (mbWindow && mpFrame) ? mpFrame->mpWindow : nil );
+}
+
+void IosSalGraphics::initResolution( UIWindow* )
+{
+ // #i100617# read DPI only once; there is some kind of weird caching going on
+ // if the main screen changes
+ // FIXME: this is really unfortunate and needs to be investigated
+
+ SalData* pSalData = GetSalData();
+ if( pSalData->mnDPIX == 0 || pSalData->mnDPIY == 0 )
+ {
+ UIScreen* pScreen = [UIScreen mainScreen];
+
+ mnRealDPIX = mnRealDPIY = 160;
+ if( pScreen )
+ {
+ mnRealDPIX *= [pScreen scale];
+ mnRealDPIY *= [pScreen scale];
+ }
+ else
+ {
+ OSL_FAIL( "no screen found" );
+ }
+
+ pSalData->mnDPIX = mnRealDPIX;
+ pSalData->mnDPIY = mnRealDPIY;
+ }
+ else
+ {
+ mnRealDPIX = pSalData->mnDPIX;
+ mnRealDPIY = pSalData->mnDPIY;
+ }
+
+ mfFakeDPIScale = 1.0;
+}
+
+void IosSalGraphics::GetResolution( long& rDPIX, long& rDPIY )
+{
+ if( !mnRealDPIY )
+ initResolution( (mbWindow && mpFrame) ? mpFrame->mpWindow : nil );
+
+ rDPIX = static_cast<long>(mfFakeDPIScale * mnRealDPIX);
+ rDPIY = static_cast<long>(mfFakeDPIScale * mnRealDPIY);
+}
+
+void IosSalGraphics::copyResolution( IosSalGraphics& rGraphics )
+{
+ if( !rGraphics.mnRealDPIY && rGraphics.mbWindow && rGraphics.mpFrame )
+ rGraphics.initResolution( rGraphics.mpFrame->mpWindow );
+
+ mnRealDPIX = rGraphics.mnRealDPIX;
+ mnRealDPIY = rGraphics.mnRealDPIY;
+ mfFakeDPIScale = rGraphics.mfFakeDPIScale;
+}
+
+// -----------------------------------------------------------------------
+
+sal_uInt16 IosSalGraphics::GetBitCount() const
+{
+ sal_uInt16 nBits = mnBitmapDepth ? mnBitmapDepth : 32;//24;
+ return nBits;
+}
+
+// -----------------------------------------------------------------------
+
+static const basegfx::B2DPoint aHalfPointOfs ( 0.5, 0.5 );
+
+static void AddPolygonToPath( CGMutablePathRef xPath,
+ const ::basegfx::B2DPolygon& rPolygon, bool bClosePath, bool bPixelSnap, bool bLineDraw )
+{
+ // short circuit if there is nothing to do
+ const int nPointCount = rPolygon.count();
+ if( nPointCount <= 0 )
+ return;
+
+ (void)bPixelSnap; // TODO
+ const CGAffineTransform* pTransform = NULL;
+
+ const bool bHasCurves = rPolygon.areControlPointsUsed();
+ for( int nPointIdx = 0, nPrevIdx = 0;; nPrevIdx = nPointIdx++ )
+ {
+ int nClosedIdx = nPointIdx;
+ if( nPointIdx >= nPointCount )
+ {
+ // prepare to close last curve segment if needed
+ if( bClosePath && (nPointIdx == nPointCount) )
+ nClosedIdx = 0;
+ else
+ break;
+ }
+
+ ::basegfx::B2DPoint aPoint = rPolygon.getB2DPoint( nClosedIdx );
+
+ if( bPixelSnap)
+ {
+ // snap device coordinates to full pixels
+ aPoint.setX( basegfx::fround( aPoint.getX() ) );
+ aPoint.setY( basegfx::fround( aPoint.getY() ) );
+ }
+
+ if( bLineDraw )
+ aPoint += aHalfPointOfs;
+
+ if( !nPointIdx ) { // first point => just move there
+ CGPathMoveToPoint( xPath, pTransform, aPoint.getX(), aPoint.getY() );
+ continue;
+ }
+
+ bool bPendingCurve = false;
+ if( bHasCurves )
+ {
+ bPendingCurve = rPolygon.isNextControlPointUsed( nPrevIdx );
+ bPendingCurve |= rPolygon.isPrevControlPointUsed( nClosedIdx );
+ }
+
+ if( !bPendingCurve ) // line segment
+ CGPathAddLineToPoint( xPath, pTransform, aPoint.getX(), aPoint.getY() );
+ else // cubic bezier segment
+ {
+ basegfx::B2DPoint aCP1 = rPolygon.getNextControlPoint( nPrevIdx );
+ basegfx::B2DPoint aCP2 = rPolygon.getPrevControlPoint( nClosedIdx );
+ if( bLineDraw )
+ {
+ aCP1 += aHalfPointOfs;
+ aCP2 += aHalfPointOfs;
+ }
+ CGPathAddCurveToPoint( xPath, pTransform, aCP1.getX(), aCP1.getY(),
+ aCP2.getX(), aCP2.getY(), aPoint.getX(), aPoint.getY() );
+ }
+ }
+
+ if( bClosePath )
+ CGPathCloseSubpath( xPath );
+}
+
+static void AddPolyPolygonToPath( CGMutablePathRef xPath,
+ const ::basegfx::B2DPolyPolygon& rPolyPoly, bool bPixelSnap, bool bLineDraw )
+{
+ // short circuit if there is nothing to do
+ const int nPolyCount = rPolyPoly.count();
+ if( nPolyCount <= 0 )
+ return;
+
+ for( int nPolyIdx = 0; nPolyIdx < nPolyCount; ++nPolyIdx )
+ {
+ const ::basegfx::B2DPolygon rPolygon = rPolyPoly.getB2DPolygon( nPolyIdx );
+ AddPolygonToPath( xPath, rPolygon, true, bPixelSnap, bLineDraw );
+ }
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::ResetClipRegion()
+{
+ // release old path and indicate no clipping
+ if( mxClipPath )
+ {
+ CGPathRelease( mxClipPath );
+ mxClipPath = NULL;
+ }
+ if( CheckContext() )
+ SetState();
+}
+
+// -----------------------------------------------------------------------
+
+bool IosSalGraphics::setClipRegion( const Region& i_rClip )
+{
+ // release old clip path
+ if( mxClipPath )
+ {
+ CGPathRelease( mxClipPath );
+ mxClipPath = NULL;
+ }
+ mxClipPath = CGPathCreateMutable();
+
+ // set current path, either as polypolgon or sequence of rectangles
+ if( i_rClip.HasPolyPolygon() )
+ {
+ basegfx::B2DPolyPolygon aClip( const_cast<Region&>(i_rClip).ConvertToB2DPolyPolygon() );
+ AddPolyPolygonToPath( mxClipPath, aClip, !getAntiAliasB2DDraw(), false );
+ }
+ else
+ {
+ long nX, nY, nW, nH;
+ ImplRegionInfo aInfo;
+ bool bRegionRect = i_rClip.ImplGetFirstRect(aInfo, nX, nY, nW, nH );
+ while( bRegionRect )
+ {
+ if( nW && nH )
+ {
+ CGRect aRect = {{nX,nY}, {nW,nH}};
+ CGPathAddRect( mxClipPath, NULL, aRect );
+ }
+ bRegionRect = i_rClip.ImplGetNextRect( aInfo, nX, nY, nW, nH );
+ }
+ }
+ // set the current path as clip region
+ if( CheckContext() )
+ SetState();
+ return true;
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::SetLineColor()
+{
+ maLineColor.SetAlpha( 0.0 ); // transparent
+ if( CheckContext() )
+ CGContextSetStrokeColor( mrContext, maLineColor.AsArray() );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::SetLineColor( SalColor nSalColor )
+{
+ maLineColor = RGBAColor( nSalColor );
+ if( CheckContext() )
+ CGContextSetStrokeColor( mrContext, maLineColor.AsArray() );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::SetFillColor()
+{
+ maFillColor.SetAlpha( 0.0 ); // transparent
+ if( CheckContext() )
+ CGContextSetFillColor( mrContext, maFillColor.AsArray() );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::SetFillColor( SalColor nSalColor )
+{
+ maFillColor = RGBAColor( nSalColor );
+ if( CheckContext() )
+ CGContextSetFillColor( mrContext, maFillColor.AsArray() );
+}
+
+// -----------------------------------------------------------------------
+
+static SalColor ImplGetROPSalColor( SalROPColor nROPColor )
+{
+ SalColor nSalColor;
+ if ( nROPColor == SAL_ROP_0 )
+ nSalColor = MAKE_SALCOLOR( 0, 0, 0 );
+ else
+ nSalColor = MAKE_SALCOLOR( 255, 255, 255 );
+ return nSalColor;
+}
+
+void IosSalGraphics::SetROPLineColor( SalROPColor nROPColor )
+{
+ if( ! mbPrinter )
+ SetLineColor( ImplGetROPSalColor( nROPColor ) );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::SetROPFillColor( SalROPColor nROPColor )
+{
+ if( ! mbPrinter )
+ SetFillColor( ImplGetROPSalColor( nROPColor ) );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::ImplDrawPixel( long nX, long nY, const RGBAColor& rColor )
+{
+ if( !CheckContext() )
+ return;
+
+ // overwrite the fill color
+ CGContextSetFillColor( mrContext, rColor.AsArray() );
+ // draw 1x1 rect, there is no pixel drawing in Quartz
+ CGRect aDstRect = {{nX,nY,},{1,1}};
+ CGContextFillRect( mrContext, aDstRect );
+ RefreshRect( aDstRect );
+ // reset the fill color
+ CGContextSetFillColor( mrContext, maFillColor.AsArray() );
+}
+
+void IosSalGraphics::drawPixel( long nX, long nY )
+{
+ // draw pixel with current line color
+ ImplDrawPixel( nX, nY, maLineColor );
+}
+
+void IosSalGraphics::drawPixel( long nX, long nY, SalColor nSalColor )
+{
+ const RGBAColor aPixelColor( nSalColor );
+ ImplDrawPixel( nX, nY, aPixelColor );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::drawLine( long nX1, long nY1, long nX2, long nY2 )
+{
+ if( nX1 == nX2 && nY1 == nY2 )
+ {
+ // #i109453# platform independent code expects at least one pixel to be drawn
+ drawPixel( nX1, nY1 );
+ return;
+ }
+
+ if( !CheckContext() )
+ return;
+
+ CGContextBeginPath( mrContext );
+ CGContextMoveToPoint( mrContext, static_cast<float>(nX1)+0.5, static_cast<float>(nY1)+0.5 );
+ CGContextAddLineToPoint( mrContext, static_cast<float>(nX2)+0.5, static_cast<float>(nY2)+0.5 );
+ CGContextDrawPath( mrContext, kCGPathStroke );
+
+ Rectangle aRefreshRect( nX1, nY1, nX2, nY2 );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::drawRect( long nX, long nY, long nWidth, long nHeight )
+{
+ if( !CheckContext() )
+ return;
+
+ CGRect aRect( CGRectMake(nX, nY, nWidth, nHeight) );
+ if( IsPenVisible() )
+ {
+ aRect.origin.x += 0.5;
+ aRect.origin.y += 0.5;
+ aRect.size.width -= 1;
+ aRect.size.height -= 1;
+ }
+
+ if( IsBrushVisible() )
+ CGContextFillRect( mrContext, aRect );
+
+ if( IsPenVisible() )
+ CGContextStrokeRect( mrContext, aRect );
+
+ RefreshRect( nX, nY, nWidth, nHeight );
+}
+
+// -----------------------------------------------------------------------
+
+static void getBoundRect( sal_uLong nPoints, const SalPoint *pPtAry, long &rX, long& rY, long& rWidth, long& rHeight )
+{
+ long nX1 = pPtAry->mnX;
+ long nX2 = nX1;
+ long nY1 = pPtAry->mnY;
+ long nY2 = nY1;
+ for( sal_uLong n = 1; n < nPoints; n++ )
+ {
+ if( pPtAry[n].mnX < nX1 )
+ nX1 = pPtAry[n].mnX;
+ else if( pPtAry[n].mnX > nX2 )
+ nX2 = pPtAry[n].mnX;
+
+ if( pPtAry[n].mnY < nY1 )
+ nY1 = pPtAry[n].mnY;
+ else if( pPtAry[n].mnY > nY2 )
+ nY2 = pPtAry[n].mnY;
+ }
+ rX = nX1;
+ rY = nY1;
+ rWidth = nX2 - nX1 + 1;
+ rHeight = nY2 - nY1 + 1;
+}
+
+static inline void alignLinePoint( const SalPoint* i_pIn, float& o_fX, float& o_fY )
+{
+ o_fX = static_cast<float>(i_pIn->mnX ) + 0.5;
+ o_fY = static_cast<float>(i_pIn->mnY ) + 0.5;
+}
+
+void IosSalGraphics::drawPolyLine( sal_uLong nPoints, const SalPoint *pPtAry )
+{
+ if( nPoints < 1 )
+ return;
+ if( !CheckContext() )
+ return;
+
+ long nX = 0, nY = 0, nWidth = 0, nHeight = 0;
+ getBoundRect( nPoints, pPtAry, nX, nY, nWidth, nHeight );
+
+ float fX, fY;
+
+ CGContextBeginPath( mrContext );
+ alignLinePoint( pPtAry, fX, fY );
+ CGContextMoveToPoint( mrContext, fX, fY );
+ pPtAry++;
+ for( sal_uLong nPoint = 1; nPoint < nPoints; nPoint++, pPtAry++ )
+ {
+ alignLinePoint( pPtAry, fX, fY );
+ CGContextAddLineToPoint( mrContext, fX, fY );
+ }
+ CGContextDrawPath( mrContext, kCGPathStroke );
+
+ RefreshRect( nX, nY, nWidth, nHeight );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::drawPolygon( sal_uLong nPoints, const SalPoint *pPtAry )
+{
+ if( nPoints <= 1 )
+ return;
+ if( !CheckContext() )
+ return;
+
+ long nX = 0, nY = 0, nWidth = 0, nHeight = 0;
+ getBoundRect( nPoints, pPtAry, nX, nY, nWidth, nHeight );
+
+ CGPathDrawingMode eMode;
+ if( IsBrushVisible() && IsPenVisible() )
+ eMode = kCGPathEOFillStroke;
+ else if( IsPenVisible() )
+ eMode = kCGPathStroke;
+ else if( IsBrushVisible() )
+ eMode = kCGPathEOFill;
+ else
+ return;
+
+ CGContextBeginPath( mrContext );
+
+ if( IsPenVisible() )
+ {
+ float fX, fY;
+ alignLinePoint( pPtAry, fX, fY );
+ CGContextMoveToPoint( mrContext, fX, fY );
+ pPtAry++;
+ for( sal_uLong nPoint = 1; nPoint < nPoints; nPoint++, pPtAry++ )
+ {
+ alignLinePoint( pPtAry, fX, fY );
+ CGContextAddLineToPoint( mrContext, fX, fY );
+ }
+ }
+ else
+ {
+ CGContextMoveToPoint( mrContext, pPtAry->mnX, pPtAry->mnY );
+ pPtAry++;
+ for( sal_uLong nPoint = 1; nPoint < nPoints; nPoint++, pPtAry++ )
+ CGContextAddLineToPoint( mrContext, pPtAry->mnX, pPtAry->mnY );
+ }
+
+ CGContextDrawPath( mrContext, eMode );
+ RefreshRect( nX, nY, nWidth, nHeight );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::drawPolyPolygon( sal_uLong nPolyCount, const sal_uLong *pPoints, PCONSTSALPOINT *ppPtAry )
+{
+ if( nPolyCount <= 0 )
+ return;
+ if( !CheckContext() )
+ return;
+
+ // find bound rect
+ long leftX = 0, topY = 0, maxWidth = 0, maxHeight = 0;
+ getBoundRect( pPoints[0], ppPtAry[0], leftX, topY, maxWidth, maxHeight );
+ for( sal_uLong n = 1; n < nPolyCount; n++ )
+ {
+ long nX = leftX, nY = topY, nW = maxWidth, nH = maxHeight;
+ getBoundRect( pPoints[n], ppPtAry[n], nX, nY, nW, nH );
+ if( nX < leftX )
+ {
+ maxWidth += leftX - nX;
+ leftX = nX;
+ }
+ if( nY < topY )
+ {
+ maxHeight += topY - nY;
+ topY = nY;
+ }
+ if( nX + nW > leftX + maxWidth )
+ maxWidth = nX + nW - leftX;
+ if( nY + nH > topY + maxHeight )
+ maxHeight = nY + nH - topY;
+ }
+
+ // prepare drawing mode
+ CGPathDrawingMode eMode;
+ if( IsBrushVisible() && IsPenVisible() )
+ eMode = kCGPathEOFillStroke;
+ else if( IsPenVisible() )
+ eMode = kCGPathStroke;
+ else if( IsBrushVisible() )
+ eMode = kCGPathEOFill;
+ else
+ return;
+
+ // convert to CGPath
+ CGContextBeginPath( mrContext );
+ if( IsPenVisible() )
+ {
+ for( sal_uLong nPoly = 0; nPoly < nPolyCount; nPoly++ )
+ {
+ const sal_uLong nPoints = pPoints[nPoly];
+ if( nPoints > 1 )
+ {
+ const SalPoint *pPtAry = ppPtAry[nPoly];
+ float fX, fY;
+ alignLinePoint( pPtAry, fX, fY );
+ CGContextMoveToPoint( mrContext, fX, fY );
+ pPtAry++;
+ for( sal_uLong nPoint = 1; nPoint < nPoints; nPoint++, pPtAry++ )
+ {
+ alignLinePoint( pPtAry, fX, fY );
+ CGContextAddLineToPoint( mrContext, fX, fY );
+ }
+ CGContextClosePath(mrContext);
+ }
+ }
+ }
+ else
+ {
+ for( sal_uLong nPoly = 0; nPoly < nPolyCount; nPoly++ )
+ {
+ const sal_uLong nPoints = pPoints[nPoly];
+ if( nPoints > 1 )
+ {
+ const SalPoint *pPtAry = ppPtAry[nPoly];
+ CGContextMoveToPoint( mrContext, pPtAry->mnX, pPtAry->mnY );
+ pPtAry++;
+ for( sal_uLong nPoint = 1; nPoint < nPoints; nPoint++, pPtAry++ )
+ CGContextAddLineToPoint( mrContext, pPtAry->mnX, pPtAry->mnY );
+ CGContextClosePath(mrContext);
+ }
+ }
+ }
+
+ CGContextDrawPath( mrContext, eMode );
+
+ RefreshRect( leftX, topY, maxWidth, maxHeight );
+}
+
+// -----------------------------------------------------------------------
+
+bool IosSalGraphics::drawPolyPolygon( const ::basegfx::B2DPolyPolygon& rPolyPoly,
+ double fTransparency )
+{
+ // short circuit if there is nothing to do
+ const int nPolyCount = rPolyPoly.count();
+ if( nPolyCount <= 0 )
+ return true;
+
+ // ignore invisible polygons
+ if( (fTransparency >= 1.0) || (fTransparency < 0) )
+ return true;
+
+ // setup poly-polygon path
+ CGMutablePathRef xPath = CGPathCreateMutable();
+ for( int nPolyIdx = 0; nPolyIdx < nPolyCount; ++nPolyIdx )
+ {
+ const ::basegfx::B2DPolygon rPolygon = rPolyPoly.getB2DPolygon( nPolyIdx );
+ AddPolygonToPath( xPath, rPolygon, true, !getAntiAliasB2DDraw(), IsPenVisible() );
+ }
+
+ const CGRect aRefreshRect = CGPathGetBoundingBox( xPath );
+#ifndef NO_I97317_WORKAROUND
+ // #i97317# workaround for Quartz having problems with drawing small polygons
+ if( ! ((aRefreshRect.size.width <= 0.125) && (aRefreshRect.size.height <= 0.125)) )
+#endif
+ {
+ // use the path to prepare the graphics context
+ CGContextSaveGState( mrContext );
+ CGContextBeginPath( mrContext );
+ CGContextAddPath( mrContext, xPath );
+
+ // draw path with antialiased polygon
+ CGContextSetShouldAntialias( mrContext, true );
+ CGContextSetAlpha( mrContext, 1.0 - fTransparency );
+ CGContextDrawPath( mrContext, kCGPathEOFillStroke );
+ CGContextRestoreGState( mrContext );
+
+ // mark modified rectangle as updated
+ RefreshRect( aRefreshRect );
+ }
+
+ CGPathRelease( xPath );
+
+ return true;
+}
+
+// -----------------------------------------------------------------------
+
+bool IosSalGraphics::drawPolyLine( const ::basegfx::B2DPolygon& rPolyLine,
+ double fTransparency,
+ const ::basegfx::B2DVector& rLineWidths,
+ basegfx::B2DLineJoin eLineJoin )
+{
+ // short circuit if there is nothing to do
+ const int nPointCount = rPolyLine.count();
+ if( nPointCount <= 0 )
+ return true;
+
+ // reject requests that cannot be handled yet
+ if( rLineWidths.getX() != rLineWidths.getY() )
+ return false;
+
+ // #i101491# Ios does not support B2DLINEJOIN_NONE; return false to use
+ // the fallback (own geometry preparation)
+ // #i104886# linejoin-mode and thus the above only applies to "fat" lines
+ if( (basegfx::B2DLINEJOIN_NONE == eLineJoin)
+ && (rLineWidths.getX() > 1.3) )
+ return false;
+
+ // setup line attributes
+ CGLineJoin aCGLineJoin = kCGLineJoinMiter;
+ switch( eLineJoin ) {
+ case ::basegfx::B2DLINEJOIN_NONE: aCGLineJoin = /*TODO?*/kCGLineJoinMiter; break;
+ case ::basegfx::B2DLINEJOIN_MIDDLE: aCGLineJoin = /*TODO?*/kCGLineJoinMiter; break;
+ case ::basegfx::B2DLINEJOIN_BEVEL: aCGLineJoin = kCGLineJoinBevel; break;
+ case ::basegfx::B2DLINEJOIN_MITER: aCGLineJoin = kCGLineJoinMiter; break;
+ case ::basegfx::B2DLINEJOIN_ROUND: aCGLineJoin = kCGLineJoinRound; break;
+ }
+
+ // setup poly-polygon path
+ CGMutablePathRef xPath = CGPathCreateMutable();
+ AddPolygonToPath( xPath, rPolyLine, rPolyLine.isClosed(), !getAntiAliasB2DDraw(), true );
+
+ const CGRect aRefreshRect = CGPathGetBoundingBox( xPath );
+#ifndef NO_I97317_WORKAROUND
+ // #i97317# workaround for Quartz having problems with drawing small polygons
+ if( ! ((aRefreshRect.size.width <= 0.125) && (aRefreshRect.size.height <= 0.125)) )
+#endif
+ {
+ // use the path to prepare the graphics context
+ CGContextSaveGState( mrContext );
+ CGContextAddPath( mrContext, xPath );
+ // draw path with antialiased line
+ CGContextSetShouldAntialias( mrContext, true );
+ CGContextSetAlpha( mrContext, 1.0 - fTransparency );
+ CGContextSetLineJoin( mrContext, aCGLineJoin );
+ CGContextSetLineWidth( mrContext, rLineWidths.getX() );
+ CGContextDrawPath( mrContext, kCGPathStroke );
+ CGContextRestoreGState( mrContext );
+
+ // mark modified rectangle as updated
+ RefreshRect( aRefreshRect );
+ }
+
+ CGPathRelease( xPath );
+
+ return true;
+}
+
+// -----------------------------------------------------------------------
+
+sal_Bool IosSalGraphics::drawPolyLineBezier( sal_uLong, const SalPoint*, const sal_uInt8* )
+{
+ return sal_False;
+}
+
+// -----------------------------------------------------------------------
+
+sal_Bool IosSalGraphics::drawPolygonBezier( sal_uLong, const SalPoint*, const sal_uInt8* )
+{
+ return sal_False;
+}
+
+// -----------------------------------------------------------------------
+
+sal_Bool IosSalGraphics::drawPolyPolygonBezier( sal_uLong, const sal_uLong*,
+ const SalPoint* const*, const sal_uInt8* const* )
+{
+ return sal_False;
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::copyBits( const SalTwoRect *pPosAry, SalGraphics *pSrcGraphics )
+{
+ if( !pSrcGraphics )
+ pSrcGraphics = this;
+
+ //from unix salgdi2.cxx
+ //[FIXME] find a better way to prevent calc from crashing when width and height are negative
+ if( pPosAry->mnSrcWidth <= 0
+ || pPosAry->mnSrcHeight <= 0
+ || pPosAry->mnDestWidth <= 0
+ || pPosAry->mnDestHeight <= 0 )
+ {
+ return;
+ }
+
+ // accelerate trivial operations
+ /*const*/ IosSalGraphics* pSrc = static_cast<IosSalGraphics*>(pSrcGraphics);
+ const bool bSameGraphics = (this == pSrc) || (mbWindow && mpFrame && pSrc->mbWindow && (mpFrame == pSrc->mpFrame));
+ if( bSameGraphics
+ && (pPosAry->mnSrcWidth == pPosAry->mnDestWidth)
+ && (pPosAry->mnSrcHeight == pPosAry->mnDestHeight))
+ {
+ // short circuit if there is nothing to do
+ if( (pPosAry->mnSrcX == pPosAry->mnDestX)
+ && (pPosAry->mnSrcY == pPosAry->mnDestY))
+ return;
+ // use copyArea() if source and destination context are identical
+ copyArea( pPosAry->mnDestX, pPosAry->mnDestY, pPosAry->mnSrcX, pPosAry->mnSrcY,
+ pPosAry->mnSrcWidth, pPosAry->mnSrcHeight, 0 );
+ return;
+ }
+
+ ApplyXorContext();
+ pSrc->ApplyXorContext();
+
+ DBG_ASSERT( pSrc->mxLayer!=NULL, "IosSalGraphics::copyBits() from non-layered graphics" );
+
+ const CGPoint aDstPoint = { +pPosAry->mnDestX - pPosAry->mnSrcX, pPosAry->mnDestY - pPosAry->mnSrcY };
+ if( (pPosAry->mnSrcWidth == pPosAry->mnDestWidth && pPosAry->mnSrcHeight == pPosAry->mnDestHeight) &&
+ (!mnBitmapDepth || (aDstPoint.x + pSrc->mnWidth) <= mnWidth) ) // workaround a Quartz crasher
+ {
+ // in XOR mode the drawing context is redirected to the XOR mask
+ // if source and target are identical then copyBits() paints onto the target context though
+ CGContextRef xCopyContext = mrContext;
+ if( mpXorEmulation && mpXorEmulation->IsEnabled() )
+ if( pSrcGraphics == this )
+ xCopyContext = mpXorEmulation->GetTargetContext();
+
+ CGContextSaveGState( xCopyContext );
+ const CGRect aDstRect = { {pPosAry->mnDestX, pPosAry->mnDestY}, {pPosAry->mnDestWidth, pPosAry->mnDestHeight} };
+ CGContextClipToRect( xCopyContext, aDstRect );
+
+ // draw at new destination
+ // NOTE: flipped drawing gets disabled for this, else the subimage would be drawn upside down
+ if( pSrc->IsFlipped() )
+ { CGContextTranslateCTM( xCopyContext, 0, +mnHeight ); CGContextScaleCTM( xCopyContext, +1, -1 ); }
+ // TODO: pSrc->size() != this->size()
+ ::CGContextDrawLayerAtPoint( xCopyContext, aDstPoint, pSrc->mxLayer );
+ CGContextRestoreGState( xCopyContext );
+ // mark the destination rectangle as updated
+ RefreshRect( aDstRect );
+ }
+ else
+ {
+ SalBitmap* pBitmap = pSrc->getBitmap( pPosAry->mnSrcX, pPosAry->mnSrcY, pPosAry->mnSrcWidth, pPosAry->mnSrcHeight );
+
+ if( pBitmap )
+ {
+ SalTwoRect aPosAry( *pPosAry );
+ aPosAry.mnSrcX = 0;
+ aPosAry.mnSrcY = 0;
+ drawBitmap( &aPosAry, *pBitmap );
+ delete pBitmap;
+ }
+ }
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::copyArea( long nDstX, long nDstY,long nSrcX, long nSrcY, long nSrcWidth, long nSrcHeight, sal_uInt16 /*nFlags*/ )
+{
+ ApplyXorContext();
+
+ DBG_ASSERT( mxLayer!=NULL, "IosSalGraphics::copyArea() for non-layered graphics" );
+
+ // in XOR mode the drawing context is redirected to the XOR mask
+ // copyArea() always works on the target context though
+ CGContextRef xCopyContext = mrContext;
+ if( mpXorEmulation && mpXorEmulation->IsEnabled() )
+ xCopyContext = mpXorEmulation->GetTargetContext();
+
+ // drawing a layer onto its own context causes trouble on OSX => copy it first
+ // TODO: is it possible to get rid of this unneeded copy more often?
+ // e.g. on OSX>=10.5 only this situation causes problems:
+ // mnBitmapDepth && (aDstPoint.x + pSrc->mnWidth) > mnWidth
+ CGLayerRef xSrcLayer = mxLayer;
+ // TODO: if( mnBitmapDepth > 0 )
+ {
+ const CGSize aSrcSize = { nSrcWidth, nSrcHeight };
+ xSrcLayer = ::CGLayerCreateWithContext( xCopyContext, aSrcSize, NULL );
+ const CGContextRef xSrcContext = CGLayerGetContext( xSrcLayer );
+ CGPoint aSrcPoint = { -nSrcX, -nSrcY };
+ if( IsFlipped() )
+ {
+ ::CGContextTranslateCTM( xSrcContext, 0, +nSrcHeight );
+ ::CGContextScaleCTM( xSrcContext, +1, -1 );
+ aSrcPoint.y = (nSrcY + nSrcHeight) - mnHeight;
+ }
+ ::CGContextDrawLayerAtPoint( xSrcContext, aSrcPoint, mxLayer );
+ }
+
+ // draw at new destination
+ const CGPoint aDstPoint = { +nDstX, +nDstY };
+ ::CGContextDrawLayerAtPoint( xCopyContext, aDstPoint, xSrcLayer );
+
+ // cleanup
+ if( xSrcLayer != mxLayer )
+ CGLayerRelease( xSrcLayer );
+
+ // mark the destination rectangle as updated
+ RefreshRect( nDstX, nDstY, nSrcWidth, nSrcHeight );
+
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::drawBitmap( const SalTwoRect* pPosAry, const SalBitmap& rSalBitmap )
+{
+ if( !CheckContext() )
+ return;
+
+ const IosSalBitmap& rBitmap = static_cast<const IosSalBitmap&>(rSalBitmap);
+ CGImageRef xImage = rBitmap.CreateCroppedImage( (int)pPosAry->mnSrcX, (int)pPosAry->mnSrcY, (int)pPosAry->mnSrcWidth, (int)pPosAry->mnSrcHeight );
+ if( !xImage )
+ return;
+
+ const CGRect aDstRect = {{pPosAry->mnDestX, pPosAry->mnDestY}, {pPosAry->mnDestWidth, pPosAry->mnDestHeight}};
+ CGContextDrawImage( mrContext, aDstRect, xImage );
+ CGImageRelease( xImage );
+ RefreshRect( aDstRect );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::drawBitmap( const SalTwoRect* pPosAry, const SalBitmap& rSalBitmap,SalColor )
+{
+ OSL_FAIL("not implemented for color masking!");
+ drawBitmap( pPosAry, rSalBitmap );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::drawBitmap( const SalTwoRect* pPosAry, const SalBitmap& rSalBitmap, const SalBitmap& rTransparentBitmap )
+{
+ if( !CheckContext() )
+ return;
+
+ const IosSalBitmap& rBitmap = static_cast<const IosSalBitmap&>(rSalBitmap);
+ const IosSalBitmap& rMask = static_cast<const IosSalBitmap&>(rTransparentBitmap);
+ CGImageRef xMaskedImage( rBitmap.CreateWithMask( rMask, pPosAry->mnSrcX, pPosAry->mnSrcY, pPosAry->mnSrcWidth, pPosAry->mnSrcHeight ) );
+ if( !xMaskedImage )
+ return;
+
+ const CGRect aDstRect = {{pPosAry->mnDestX, pPosAry->mnDestY}, {pPosAry->mnDestWidth, pPosAry->mnDestHeight}};
+ CGContextDrawImage( mrContext, aDstRect, xMaskedImage );
+ CGImageRelease( xMaskedImage );
+ RefreshRect( aDstRect );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::drawMask( const SalTwoRect* pPosAry, const SalBitmap& rSalBitmap, SalColor nMaskColor )
+{
+ if( !CheckContext() )
+ return;
+
+ const IosSalBitmap& rBitmap = static_cast<const IosSalBitmap&>(rSalBitmap);
+ CGImageRef xImage = rBitmap.CreateColorMask( pPosAry->mnSrcX, pPosAry->mnSrcY, pPosAry->mnSrcWidth, pPosAry->mnSrcHeight, nMaskColor );
+ if( !xImage )
+ return;
+
+ const CGRect aDstRect = {{pPosAry->mnDestX, pPosAry->mnDestY}, {pPosAry->mnDestWidth, pPosAry->mnDestHeight}};
+ CGContextDrawImage( mrContext, aDstRect, xImage );
+ CGImageRelease( xImage );
+ RefreshRect( aDstRect );
+}
+
+// -----------------------------------------------------------------------
+
+SalBitmap* IosSalGraphics::getBitmap( long nX, long nY, long nDX, long nDY )
+{
+ DBG_ASSERT( mxLayer, "IosSalGraphics::getBitmap() with no layer" );
+
+ ApplyXorContext();
+
+ IosSalBitmap* pBitmap = new IosSalBitmap;
+ if( !pBitmap->Create( mxLayer, mnBitmapDepth, nX, nY, nDX, nDY, !mbWindow ) )
+ {
+ delete pBitmap;
+ pBitmap = NULL;
+ }
+
+ return pBitmap;
+}
+
+// -----------------------------------------------------------------------
+
+SalColor IosSalGraphics::getPixel( long nX, long nY )
+{
+ // return default value on printers or when out of bounds
+ if( !mxLayer
+ || (nX < 0) || (nX >= mnWidth)
+ || (nY < 0) || (nY >= mnHeight))
+ return COL_BLACK;
+
+ // prepare creation of matching a CGBitmapContext
+ CGColorSpaceRef aCGColorSpace = GetSalData()->mxRGBSpace;
+ CGBitmapInfo aCGBmpInfo = kCGImageAlphaNoneSkipFirst | kCGBitmapByteOrder32Big;
+#if __BIG_ENDIAN__
+ struct{ unsigned char b, g, r, a; } aPixel;
+#else
+ struct{ unsigned char a, r, g, b; } aPixel;
+#endif
+
+ // create a one-pixel bitmap context
+ // TODO: is it worth to cache it?
+ CGContextRef xOnePixelContext = ::CGBitmapContextCreate( &aPixel,
+ 1, 1, 8, sizeof(aPixel), aCGColorSpace, aCGBmpInfo );
+
+ // update this graphics layer
+ ApplyXorContext();
+
+ // copy the requested pixel into the bitmap context
+ if( IsFlipped() )
+ nY = mnHeight - nY;
+ const CGPoint aCGPoint = {-nX, -nY};
+ CGContextDrawLayerAtPoint( xOnePixelContext, aCGPoint, mxLayer );
+ CGContextRelease( xOnePixelContext );
+
+ SalColor nSalColor = MAKE_SALCOLOR( aPixel.r, aPixel.g, aPixel.b );
+ return nSalColor;
+}
+
+// -----------------------------------------------------------------------
+
+
+static void DrawPattern50( void*, CGContextRef rContext )
+{
+ static const CGRect aRects[2] = { { {0,0}, { 2, 2 } }, { { 2, 2 }, { 2, 2 } } };
+ CGContextAddRects( rContext, aRects, 2 );
+ CGContextFillPath( rContext );
+}
+
+void IosSalGraphics::Pattern50Fill()
+{
+ static const float aFillCol[4] = { 1,1,1,1 };
+ static const CGPatternCallbacks aCallback = { 0, &DrawPattern50, NULL };
+ if( ! GetSalData()->mxP50Space )
+ GetSalData()->mxP50Space = CGColorSpaceCreatePattern( GetSalData()->mxRGBSpace );
+ if( ! GetSalData()->mxP50Pattern )
+ GetSalData()->mxP50Pattern = CGPatternCreate( NULL, CGRectMake( 0, 0, 4, 4 ),
+ CGAffineTransformIdentity, 4, 4,
+ kCGPatternTilingConstantSpacing,
+ false, &aCallback );
+
+ CGContextSetFillColorSpace( mrContext, GetSalData()->mxP50Space );
+ CGContextSetFillPattern( mrContext, GetSalData()->mxP50Pattern, aFillCol );
+ CGContextFillPath( mrContext );
+}
+
+void IosSalGraphics::invert( long nX, long nY, long nWidth, long nHeight, SalInvert nFlags )
+{
+ if ( CheckContext() )
+ {
+ CGRect aCGRect = CGRectMake( nX, nY, nWidth, nHeight);
+ CGContextSaveGState(mrContext);
+
+ if ( nFlags & SAL_INVERT_TRACKFRAME )
+ {
+ const float dashLengths[2] = { 4.0, 4.0 }; // for drawing dashed line
+ CGContextSetBlendMode( mrContext, kCGBlendModeDifference );
+ CGContextSetRGBStrokeColor ( mrContext, 1.0, 1.0, 1.0, 1.0 );
+ CGContextSetLineDash ( mrContext, 0, dashLengths, 2 );
+ CGContextSetLineWidth( mrContext, 2.0);
+ CGContextStrokeRect ( mrContext, aCGRect );
+ }
+ else if ( nFlags & SAL_INVERT_50 )
+ {
+ //CGContextSetAllowsAntialiasing( mrContext, false );
+ CGContextSetBlendMode(mrContext, kCGBlendModeDifference);
+ CGContextAddRect( mrContext, aCGRect );
+ Pattern50Fill();
+ }
+ else // just invert
+ {
+ CGContextSetBlendMode(mrContext, kCGBlendModeDifference);
+ CGContextSetRGBFillColor ( mrContext,1.0, 1.0, 1.0 , 1.0 );
+ CGContextFillRect ( mrContext, aCGRect );
+ }
+ CGContextRestoreGState( mrContext);
+ RefreshRect( aCGRect );
+ }
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::invert( sal_uLong nPoints, const SalPoint* pPtAry, SalInvert nSalFlags )
+{
+ CGPoint* CGpoints ;
+ if ( CheckContext() )
+ {
+ CGContextSaveGState(mrContext);
+ CGpoints = makeCGptArray(nPoints,pPtAry);
+ CGContextAddLines ( mrContext, CGpoints, nPoints );
+ if ( nSalFlags & SAL_INVERT_TRACKFRAME )
+ {
+ const float dashLengths[2] = { 4.0, 4.0 }; // for drawing dashed line
+ CGContextSetBlendMode( mrContext, kCGBlendModeDifference );
+ CGContextSetRGBStrokeColor ( mrContext, 1.0, 1.0, 1.0, 1.0 );
+ CGContextSetLineDash ( mrContext, 0, dashLengths, 2 );
+ CGContextSetLineWidth( mrContext, 2.0);
+ CGContextStrokePath ( mrContext );
+ }
+ else if ( nSalFlags & SAL_INVERT_50 )
+ {
+ CGContextSetBlendMode(mrContext, kCGBlendModeDifference);
+ Pattern50Fill();
+ }
+ else // just invert
+ {
+ CGContextSetBlendMode( mrContext, kCGBlendModeDifference );
+ CGContextSetRGBFillColor( mrContext, 1.0, 1.0, 1.0, 1.0 );
+ CGContextFillPath( mrContext );
+ }
+ const CGRect aRefreshRect = CGContextGetClipBoundingBox(mrContext);
+ CGContextRestoreGState( mrContext);
+ delete [] CGpoints;
+ RefreshRect( aRefreshRect );
+ }
+}
+
+// -----------------------------------------------------------------------
+
+sal_Bool IosSalGraphics::drawEPS( long /*nX*/, long /*nY*/, long /*nWidth*/, long /*nHeight*/,
+ void* /*pEpsData*/, sal_uLong /*nByteCount*/ )
+{
+ return sal_False;
+}
+
+// -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
+bool IosSalGraphics::drawAlphaBitmap( const SalTwoRect& rTR,
+ const SalBitmap& rSrcBitmap, const SalBitmap& rAlphaBmp )
+{
+ // An image mask can't have a depth > 8 bits (should be 1 to 8 bits)
+ if( rAlphaBmp.GetBitCount() > 8 )
+ return false;
+
+ // are these two tests really necessary? (see vcl/unx/source/gdi/salgdi2.cxx)
+ // horizontal/vertical mirroring not implemented yet
+ if( rTR.mnDestWidth < 0 || rTR.mnDestHeight < 0 )
+ return false;
+
+ const IosSalBitmap& rSrcSalBmp = static_cast<const IosSalBitmap&>(rSrcBitmap);
+ const IosSalBitmap& rMaskSalBmp = static_cast<const IosSalBitmap&>(rAlphaBmp);
+
+ CGImageRef xMaskedImage = rSrcSalBmp.CreateWithMask( rMaskSalBmp, rTR.mnSrcX, rTR.mnSrcY, rTR.mnSrcWidth, rTR.mnSrcHeight );
+ if( !xMaskedImage )
+ return false;
+
+ if ( CheckContext() )
+ {
+ const CGRect aDstRect = {{rTR.mnDestX, rTR.mnDestY}, {rTR.mnDestWidth, rTR.mnDestHeight}};
+ CGContextDrawImage( mrContext, aDstRect, xMaskedImage );
+ RefreshRect( aDstRect );
+ }
+
+ CGImageRelease(xMaskedImage);
+ return true;
+}
+
+// -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
+bool IosSalGraphics::drawAlphaRect( long nX, long nY, long nWidth,
+ long nHeight, sal_uInt8 nTransparency )
+{
+ if( !CheckContext() )
+ return true;
+
+ // save the current state
+ CGContextSaveGState( mrContext );
+ CGContextSetAlpha( mrContext, (100-nTransparency) * (1.0/100) );
+
+ CGRect aRect = {{nX,nY},{nWidth-1,nHeight-1}};
+ if( IsPenVisible() )
+ {
+ aRect.origin.x += 0.5;
+ aRect.origin.y += 0.5;
+ }
+
+ CGContextBeginPath( mrContext );
+ CGContextAddRect( mrContext, aRect );
+ CGContextDrawPath( mrContext, kCGPathFill );
+
+ // restore state
+ CGContextRestoreGState(mrContext);
+ RefreshRect( aRect );
+ return true;
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::SetTextColor( SalColor nSalColor )
+{
+ mnColor = nSalColor;
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::GetFontMetric( ImplFontMetricData* pMetric, int nFallbackLevel )
+{
+ (void)nFallbackLevel;
+
+ const double fPixelSize = (mfFakeDPIScale * CTFontGetSize( mpIosFontData->mpFontRef ));
+ pMetric->mnAscent = CTFontGetAscent( mpIosFontData->mpFontRef );
+ pMetric->mnDescent = -CTFontGetDescent( mpIosFontData->mpFontRef );
+ pMetric->mnExtLeading = CTFontGetLeading( mpIosFontData->mpFontRef );
+ pMetric->mnIntLeading = 0;
+ pMetric->mnWidth = static_cast<long>(mfFontStretch * fPixelSize + 0.5);
+}
+
+// -----------------------------------------------------------------------
+
+sal_uLong IosSalGraphics::GetKernPairs( sal_uLong, ImplKernPairData* )
+{
+ return 0;
+}
+
+// -----------------------------------------------------------------------
+
+static bool AddLocalTempFontDirs( void )
+{
+ static bool bFirst = true;
+ if( !bFirst )
+ return false;
+ bFirst = false;
+
+ // add private font files found in brand and base layer
+
+ rtl::OUString aBrandStr( RTL_CONSTASCII_USTRINGPARAM( "$BRAND_BASE_DIR" ) );
+ rtl_bootstrap_expandMacros( &aBrandStr.pData );
+ rtl::OUString aBrandSysPath;
+ OSL_VERIFY( osl_getSystemPathFromFileURL( aBrandStr.pData, &aBrandSysPath.pData ) == osl_File_E_None );
+
+ rtl::OStringBuffer aBrandFontDir( aBrandSysPath.getLength()*2 );
+ aBrandFontDir.append( rtl::OUStringToOString( aBrandSysPath, RTL_TEXTENCODING_UTF8 ) );
+ aBrandFontDir.append( "/share/fonts/truetype/" );
+
+ // iterate font files in that and call CTFontManagerRegisterFontsForURL for them?
+ bool bBrandSuccess = true;
+
+ rtl::OUString aBaseStr( RTL_CONSTASCII_USTRINGPARAM( "$OOO_BASE_DIR" ) );
+ rtl_bootstrap_expandMacros( &aBaseStr.pData );
+ rtl::OUString aBaseSysPath;
+ OSL_VERIFY( osl_getSystemPathFromFileURL( aBaseStr.pData, &aBaseSysPath.pData ) == osl_File_E_None );
+
+ rtl::OStringBuffer aBaseFontDir( aBaseSysPath.getLength()*2 );
+ aBaseFontDir.append( rtl::OUStringToOString( aBaseSysPath, RTL_TEXTENCODING_UTF8 ) );
+ aBaseFontDir.append( "/share/fonts/truetype/" );
+
+ // ditto
+ bool bBaseSuccess = true;
+
+ return bBrandSuccess && bBaseSuccess;
+}
+
+void IosSalGraphics::GetDevFontList( ImplDevFontList* pFontList )
+{
+ DBG_ASSERT( pFontList, "IosSalGraphics::GetDevFontList(NULL) !");
+
+ AddLocalTempFontDirs();
+
+ // The idea is to cache the list of system fonts once it has been generated.
+ // SalData seems to be a good place for this caching. However we have to
+ // carefully make the access to the font list thread-safe. If we register
+ // a font-change event handler to update the font list in case fonts have
+ // changed on the system we have to lock access to the list. The right
+ // way to do that is the solar mutex since GetDevFontList is protected
+ // through it as should be all event handlers
+
+ SalData* pSalData = GetSalData();
+ if (pSalData->mpFontList == NULL)
+ pSalData->mpFontList = new SystemFontList();
+
+ // Copy all ImplFontData objects contained in the SystemFontList
+ pSalData->mpFontList->AnnounceFonts( *pFontList );
+}
+
+// -----------------------------------------------------------------------
+
+bool IosSalGraphics::AddTempDevFont( ImplDevFontList*,
+ const String& rFontFileURL, const String& /*rFontName*/ )
+{
+ ::rtl::OUString aUSytemPath;
+ OSL_VERIFY( !osl::FileBase::getSystemPathFromFileURL( rFontFileURL, aUSytemPath ) );
+
+ // TODO: Implement...
+
+ return true;
+}
+
+// -----------------------------------------------------------------------
+
+// callbacks from ATSUGlyphGetCubicPaths() fore GetGlyphOutline()
+struct GgoData { basegfx::B2DPolygon maPolygon; basegfx::B2DPolyPolygon* mpPolyPoly; };
+
+static OSStatus GgoLineToProc( const Float32Point* pPoint, void* pData )
+{
+ basegfx::B2DPolygon& rPolygon = static_cast<GgoData*>(pData)->maPolygon;
+ const basegfx::B2DPoint aB2DPoint( pPoint->x, pPoint->y );
+ rPolygon.append( aB2DPoint );
+ return noErr;
+}
+
+static OSStatus GgoCurveToProc( const Float32Point* pCP1, const Float32Point* pCP2,
+ const Float32Point* pPoint, void* pData )
+{
+ basegfx::B2DPolygon& rPolygon = static_cast<GgoData*>(pData)->maPolygon;
+ const sal_uInt32 nPointCount = rPolygon.count();
+ const basegfx::B2DPoint aB2DControlPoint1( pCP1->x, pCP1->y );
+ rPolygon.setNextControlPoint( nPointCount-1, aB2DControlPoint1 );
+ const basegfx::B2DPoint aB2DEndPoint( pPoint->x, pPoint->y );
+ rPolygon.append( aB2DEndPoint );
+ const basegfx::B2DPoint aB2DControlPoint2( pCP2->x, pCP2->y );
+ rPolygon.setPrevControlPoint( nPointCount, aB2DControlPoint2 );
+ return noErr;
+}
+
+static OSStatus GgoClosePathProc( void* pData )
+{
+ GgoData* pGgoData = static_cast<GgoData*>(pData);
+ basegfx::B2DPolygon& rPolygon = pGgoData->maPolygon;
+ if( rPolygon.count() > 0 )
+ pGgoData->mpPolyPoly->append( rPolygon );
+ rPolygon.clear();
+ return noErr;
+}
+
+static OSStatus GgoMoveToProc( const Float32Point* pPoint, void* pData )
+{
+ GgoClosePathProc( pData );
+ OSStatus eStatus = GgoLineToProc( pPoint, pData );
+ return eStatus;
+}
+
+sal_Bool IosSalGraphics::GetGlyphOutline( sal_GlyphId nGlyphId, basegfx::B2DPolyPolygon& rPolyPoly )
+{
+ GgoData aGgoData;
+ aGgoData.mpPolyPoly = &rPolyPoly;
+ rPolyPoly.clear();
+
+#if 0
+ ATSUStyle rATSUStyle = maATSUStyle; // TODO: handle glyph fallback when CWS pdffix02 is integrated
+ GlyphID aGlyphId = nGlyphId & GF_IDXMASK;
+ OSStatus eGgoStatus = noErr;
+ OSStatus eStatus = ATSUGlyphGetCubicPaths( rATSUStyle, aGlyphId,
+ GgoMoveToProc, GgoLineToProc, GgoCurveToProc, GgoClosePathProc,
+ &aGgoData, &eGgoStatus );
+ if( (eStatus != noErr) ) // TODO: why is (eGgoStatus!=noErr) when curves are involved?
+ return false;
+
+ GgoClosePathProc( &aGgoData );
+#endif
+ return true;
+}
+
+// -----------------------------------------------------------------------
+
+long IosSalGraphics::GetGraphicsWidth() const
+{
+ long w = 0;
+ if( mrContext && (mbWindow || mbVirDev) )
+ {
+ w = mnWidth;
+ }
+
+ if( w == 0 )
+ {
+ if( mbWindow && mpFrame )
+ w = mpFrame->maGeometry.nWidth;
+ }
+
+ return w;
+}
+
+// -----------------------------------------------------------------------
+
+sal_Bool IosSalGraphics::GetGlyphBoundRect( sal_GlyphId nGlyphId, Rectangle& rRect )
+{
+#if 0
+ ATSUStyle rATSUStyle = maATSUStyle; // TODO: handle glyph fallback
+ GlyphID aGlyphId = nGlyphId & GF_IDXMASK;
+ ATSGlyphScreenMetrics aGlyphMetrics;
+ OSStatus eStatus = ATSUGlyphGetScreenMetrics( rATSUStyle,
+ 1, &aGlyphId, 0, FALSE, !mbNonAntialiasedText, &aGlyphMetrics );
+ if( eStatus != noErr )
+ return false;
+
+ const long nMinX = (long)(+aGlyphMetrics.topLeft.x - 0.5);
+ const long nMaxX = (long)(aGlyphMetrics.width + 0.5) + nMinX;
+ const long nMinY = (long)(-aGlyphMetrics.topLeft.y - 0.5);
+ const long nMaxY = (long)(aGlyphMetrics.height + 0.5) + nMinY;
+ rRect = Rectangle( nMinX, nMinY, nMaxX, nMaxY );
+#else
+ rRect = Rectangle( );
+#endif
+ return true;
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::GetDevFontSubstList( OutputDevice* )
+{
+ // nothing to do since there are no device-specific fonts on Ios
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::DrawServerFontLayout( const ServerFontLayout& )
+{
+}
+
+// -----------------------------------------------------------------------
+
+sal_uInt16 IosSalGraphics::SetFont( ImplFontSelectData* pReqFont, int /*nFallbackLevel*/ )
+{
+ if( !pReqFont )
+ {
+ [mpAttributes removeAllObjects];
+ mpIosFontData = NULL;
+ return 0;
+ }
+
+ // store the requested device font entry
+ const ImplIosFontData* pIosFont = static_cast<const ImplIosFontData*>( pReqFont->mpFontData );
+ mpIosFontData = pIosFont;
+
+ // enable bold-emulation if needed
+ Boolean bFakeBold = FALSE;
+ if( (pReqFont->GetWeight() >= WEIGHT_BOLD)
+ && (pIosFont->GetWeight() < WEIGHT_SEMIBOLD) )
+ bFakeBold = TRUE;
+ // enable italic-emulation if needed
+ Boolean bFakeItalic = FALSE;
+ if( ((pReqFont->GetSlant() == ITALIC_NORMAL) || (pReqFont->GetSlant() == ITALIC_OBLIQUE))
+ && !((pIosFont->GetSlant() == ITALIC_NORMAL) || (pIosFont->GetSlant() == ITALIC_OBLIQUE)) )
+ bFakeItalic = TRUE;
+
+#if 0
+ // enable/disable antialiased text
+ mbNonAntialiasedText = pReqFont->mbNonAntialiased;
+ UInt32 nStyleRenderingOptions = kATSStyleNoOptions;
+ if( pReqFont->mbNonAntialiased )
+ nStyleRenderingOptions |= kATSStyleNoAntiAliasing;
+
+ // set horizontal/vertical mode
+ ATSUVerticalCharacterType aVerticalCharacterType = kATSUStronglyHorizontal;
+ if( pReqFont->mbVertical )
+ aVerticalCharacterType = kATSUStronglyVertical;
+
+ // prepare ATS-fontid as type matching to the kATSUFontTag request
+ ATSUFontID nFontID = static_cast<ATSUFontID>(pIosFont->GetFontId());
+
+ // update ATSU style attributes with requested font parameters
+ // TODO: no need to set styles which are already defaulted
+
+ const ATSUAttributeTag aTag[] =
+ {
+ kATSUFontTag,
+ kATSUSizeTag,
+ kATSUQDBoldfaceTag,
+ kATSUQDItalicTag,
+ kATSUStyleRenderingOptionsTag,
+ kATSUVerticalCharacterTag
+ };
+
+ const ByteCount aValueSize[] =
+ {
+ sizeof(ATSUFontID),
+ sizeof(fFixedSize),
+ sizeof(bFakeBold),
+ sizeof(bFakeItalic),
+ sizeof(nStyleRenderingOptions),
+ sizeof(aVerticalCharacterType)
+ };
+
+ const ATSUAttributeValuePtr aValue[] =
+ {
+ &nFontID,
+ &fFixedSize,
+ &bFakeBold,
+ &bFakeItalic,
+ &nStyleRenderingOptions,
+ &aVerticalCharacterType
+ };
+
+ static const int nTagCount = sizeof(aTag) / sizeof(*aTag);
+ OSStatus eStatus = ATSUSetAttributes( maATSUStyle, nTagCount,
+ aTag, aValueSize, aValue );
+ // reset ATSUstyle if there was an error
+ if( eStatus != noErr )
+ {
+ DBG_WARNING( "IosSalGraphics::SetFont() : Could not set font attributes!\n");
+ ATSUClearStyle( maATSUStyle );
+ mpIosFontData = NULL;
+ return 0;
+ }
+
+ // prepare font stretching
+ const ATSUAttributeTag aMatrixTag = kATSUFontMatrixTag;
+ if( (pReqFont->mnWidth == 0) || (pReqFont->mnWidth == pReqFont->mnHeight) )
+ {
+ mfFontStretch = 1.0;
+ ATSUClearAttributes( maATSUStyle, 1, &aMatrixTag );
+ }
+ else
+ {
+ mfFontStretch = (float)pReqFont->mnWidth / pReqFont->mnHeight;
+ CGAffineTransform aMatrix = CGAffineTransformMakeScale( mfFontStretch, 1.0F );
+ const ATSUAttributeValuePtr aAttr = &aMatrix;
+ const ByteCount aMatrixBytes = sizeof(aMatrix);
+ eStatus = ATSUSetAttributes( maATSUStyle, 1, &aMatrixTag, &aMatrixBytes, &aAttr );
+ DBG_ASSERT( (eStatus==noErr), "IosSalGraphics::SetFont() : Could not set font matrix\n");
+ }
+
+ // prepare font rotation
+ mnRotation = pReqFont->mnOrientation;
+
+#if OSL_DEBUG_LEVEL > 3
+ fprintf( stderr, "SetFont to (\"%s\", \"%s\", fontid=%d) for (\"%s\" \"%s\" weight=%d, slant=%d size=%dx%d orientation=%d)\n",
+ ::rtl::OUStringToOString( pIosFont->GetFamilyName(), RTL_TEXTENCODING_UTF8 ).getStr(),
+ ::rtl::OUStringToOString( pIosFont->GetStyleName(), RTL_TEXTENCODING_UTF8 ).getStr(),
+ (int)nFontID,
+ ::rtl::OUStringToOString( pReqFont->GetFamilyName(), RTL_TEXTENCODING_UTF8 ).getStr(),
+ ::rtl::OUStringToOString( pReqFont->GetStyleName(), RTL_TEXTENCODING_UTF8 ).getStr(),
+ pReqFont->GetWeight(),
+ pReqFont->GetSlant(),
+ pReqFont->mnHeight,
+ pReqFont->mnWidth,
+ pReqFont->mnOrientation);
+#endif
+
+#endif
+ return 0;
+}
+
+// -----------------------------------------------------------------------
+
+const ImplFontCharMap* IosSalGraphics::GetImplFontCharMap() const
+{
+ if( !mpIosFontData )
+ return ImplFontCharMap::GetDefaultMap();
+
+ return mpIosFontData->GetImplFontCharMap();
+}
+
+bool IosSalGraphics::GetImplFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const
+{
+ if( !mpIosFontData )
+ return false;
+
+ return mpIosFontData->GetImplFontCapabilities(rFontCapabilities);
+}
+
+// -----------------------------------------------------------------------
+
+// fake a SFNT font directory entry for a font table
+// see http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6.html#Directory
+static void FakeDirEntry( FourCharCode eFCC, ByteCount nOfs, ByteCount nLen,
+ const unsigned char* /*pData*/, unsigned char*& rpDest )
+{
+ // write entry tag
+ rpDest[ 0] = (char)(eFCC >> 24);
+ rpDest[ 1] = (char)(eFCC >> 16);
+ rpDest[ 2] = (char)(eFCC >> 8);
+ rpDest[ 3] = (char)(eFCC >> 0);
+ // TODO: get entry checksum and write it
+ // not too important since the subsetter doesn't care currently
+ // for( pData+nOfs ... pData+nOfs+nLen )
+ // write entry offset
+ rpDest[ 8] = (char)(nOfs >> 24);
+ rpDest[ 9] = (char)(nOfs >> 16);
+ rpDest[10] = (char)(nOfs >> 8);
+ rpDest[11] = (char)(nOfs >> 0);
+ // write entry length
+ rpDest[12] = (char)(nLen >> 24);
+ rpDest[13] = (char)(nLen >> 16);
+ rpDest[14] = (char)(nLen >> 8);
+ rpDest[15] = (char)(nLen >> 0);
+ // advance to next entry
+ rpDest += 16;
+}
+
+static bool GetRawFontData( const ImplFontData* pFontData,
+ ByteVector& rBuffer, bool* pJustCFF )
+{
+ const ImplIosFontData* pIosFont = static_cast<const ImplIosFontData*>(pFontData);
+
+#if 0
+ const ATSUFontID nFontId = static_cast<ATSUFontID>(pIosFont->GetFontId());
+ ATSFontRef rFont = FMGetATSFontRefFromFont( nFontId );
+
+ ByteCount nCffLen = 0;
+ OSStatus eStatus = ATSFontGetTable( rFont, GetTag("CFF "), 0, 0, NULL, &nCffLen);
+ if( pJustCFF != NULL )
+ {
+ *pJustCFF = (eStatus == noErr) && (nCffLen > 0);
+ if( *pJustCFF )
+ {
+ rBuffer.resize( nCffLen );
+ eStatus = ATSFontGetTable( rFont, GetTag("CFF "), 0, nCffLen, (void*)&rBuffer[0], &nCffLen);
+ if( (eStatus != noErr) || (nCffLen <= 0) )
+ return false;
+ return true;
+ }
+ }
+
+ // get font table availability and size in bytes
+ ByteCount nHeadLen = 0;
+ eStatus = ATSFontGetTable( rFont, GetTag("head"), 0, 0, NULL, &nHeadLen);
+ if( (eStatus != noErr) || (nHeadLen <= 0) )
+ return false;
+ ByteCount nMaxpLen = 0;
+ eStatus = ATSFontGetTable( rFont, GetTag("maxp"), 0, 0, NULL, &nMaxpLen);
+ if( (eStatus != noErr) || (nMaxpLen <= 0) )
+ return false;
+ ByteCount nCmapLen = 0;
+ eStatus = ATSFontGetTable( rFont, GetTag("cmap"), 0, 0, NULL, &nCmapLen);
+ if( (eStatus != noErr) || (nCmapLen <= 0) )
+ return false;
+ ByteCount nNameLen = 0;
+ eStatus = ATSFontGetTable( rFont, GetTag("name"), 0, 0, NULL, &nNameLen);
+ if( (eStatus != noErr) || (nNameLen <= 0) )
+ return false;
+ ByteCount nHheaLen = 0;
+ eStatus = ATSFontGetTable( rFont, GetTag("hhea"), 0, 0, NULL, &nHheaLen);
+ if( (eStatus != noErr) || (nHheaLen <= 0) )
+ return false;
+ ByteCount nHmtxLen = 0;
+ eStatus = ATSFontGetTable( rFont, GetTag("hmtx"), 0, 0, NULL, &nHmtxLen);
+ if( (eStatus != noErr) || (nHmtxLen <= 0) )
+ return false;
+
+ // get the glyph outline tables
+ ByteCount nLocaLen = 0;
+ ByteCount nGlyfLen = 0;
+ if( (eStatus != noErr) || (nCffLen <= 0) )
+ {
+ eStatus = ATSFontGetTable( rFont, GetTag("loca"), 0, 0, NULL, &nLocaLen);
+ if( (eStatus != noErr) || (nLocaLen <= 0) )
+ return false;
+ eStatus = ATSFontGetTable( rFont, GetTag("glyf"), 0, 0, NULL, &nGlyfLen);
+ if( (eStatus != noErr) || (nGlyfLen <= 0) )
+ return false;
+ }
+
+ ByteCount nPrepLen=0, nCvtLen=0, nFpgmLen=0;
+ if( nGlyfLen ) // TODO: reduce PDF size by making hint subsetting optional
+ {
+ eStatus = ATSFontGetTable( rFont, GetTag("prep"), 0, 0, NULL, &nPrepLen);
+ eStatus = ATSFontGetTable( rFont, GetTag("cvt "), 0, 0, NULL, &nCvtLen);
+ eStatus = ATSFontGetTable( rFont, GetTag("fpgm"), 0, 0, NULL, &nFpgmLen);
+ }
+
+ // prepare a byte buffer for a fake font
+ int nTableCount = 7;
+ nTableCount += (nPrepLen>0) + (nCvtLen>0) + (nFpgmLen>0) + (nGlyfLen>0);
+ const ByteCount nFdirLen = 12 + 16*nTableCount;
+ ByteCount nTotalLen = nFdirLen;
+ nTotalLen += nHeadLen + nMaxpLen + nNameLen + nCmapLen;
+ if( nGlyfLen )
+ nTotalLen += nLocaLen + nGlyfLen;
+ else
+ nTotalLen += nCffLen;
+ nTotalLen += nHheaLen + nHmtxLen;
+ nTotalLen += nPrepLen + nCvtLen + nFpgmLen;
+ rBuffer.resize( nTotalLen );
+
+ // fake a SFNT font directory header
+ if( nTableCount < 16 )
+ {
+ int nLog2 = 0;
+ while( (nTableCount >> nLog2) > 1 ) ++nLog2;
+ rBuffer[ 1] = 1; // Win-TTF style scaler
+ rBuffer[ 5] = nTableCount; // table count
+ rBuffer[ 7] = nLog2*16; // searchRange
+ rBuffer[ 9] = nLog2; // entrySelector
+ rBuffer[11] = (nTableCount-nLog2)*16; // rangeShift
+ }
+
+ // get font table raw data and update the fake directory entries
+ ByteCount nOfs = nFdirLen;
+ unsigned char* pFakeEntry = &rBuffer[12];
+ eStatus = ATSFontGetTable( rFont, GetTag("cmap"), 0, nCmapLen, (void*)&rBuffer[nOfs], &nCmapLen);
+ FakeDirEntry( GetTag("cmap"), nOfs, nCmapLen, &rBuffer[0], pFakeEntry );
+ nOfs += nCmapLen;
+ if( nCvtLen ) {
+ eStatus = ATSFontGetTable( rFont, GetTag("cvt "), 0, nCvtLen, (void*)&rBuffer[nOfs], &nCvtLen);
+ FakeDirEntry( GetTag("cvt "), nOfs, nCvtLen, &rBuffer[0], pFakeEntry );
+ nOfs += nCvtLen;
+ }
+ if( nFpgmLen ) {
+ eStatus = ATSFontGetTable( rFont, GetTag("fpgm"), 0, nFpgmLen, (void*)&rBuffer[nOfs], &nFpgmLen);
+ FakeDirEntry( GetTag("fpgm"), nOfs, nFpgmLen, &rBuffer[0], pFakeEntry );
+ nOfs += nFpgmLen;
+ }
+ if( nCffLen ) {
+ eStatus = ATSFontGetTable( rFont, GetTag("CFF "), 0, nCffLen, (void*)&rBuffer[nOfs], &nCffLen);
+ FakeDirEntry( GetTag("CFF "), nOfs, nCffLen, &rBuffer[0], pFakeEntry );
+ nOfs += nGlyfLen;
+ } else {
+ eStatus = ATSFontGetTable( rFont, GetTag("glyf"), 0, nGlyfLen, (void*)&rBuffer[nOfs], &nGlyfLen);
+ FakeDirEntry( GetTag("glyf"), nOfs, nGlyfLen, &rBuffer[0], pFakeEntry );
+ nOfs += nGlyfLen;
+ eStatus = ATSFontGetTable( rFont, GetTag("loca"), 0, nLocaLen, (void*)&rBuffer[nOfs], &nLocaLen);
+ FakeDirEntry( GetTag("loca"), nOfs, nLocaLen, &rBuffer[0], pFakeEntry );
+ nOfs += nLocaLen;
+ }
+ eStatus = ATSFontGetTable( rFont, GetTag("head"), 0, nHeadLen, (void*)&rBuffer[nOfs], &nHeadLen);
+ FakeDirEntry( GetTag("head"), nOfs, nHeadLen, &rBuffer[0], pFakeEntry );
+ nOfs += nHeadLen;
+ eStatus = ATSFontGetTable( rFont, GetTag("hhea"), 0, nHheaLen, (void*)&rBuffer[nOfs], &nHheaLen);
+ FakeDirEntry( GetTag("hhea"), nOfs, nHheaLen, &rBuffer[0], pFakeEntry );
+ nOfs += nHheaLen;
+ eStatus = ATSFontGetTable( rFont, GetTag("hmtx"), 0, nHmtxLen, (void*)&rBuffer[nOfs], &nHmtxLen);
+ FakeDirEntry( GetTag("hmtx"), nOfs, nHmtxLen, &rBuffer[0], pFakeEntry );
+ nOfs += nHmtxLen;
+ eStatus = ATSFontGetTable( rFont, GetTag("maxp"), 0, nMaxpLen, (void*)&rBuffer[nOfs], &nMaxpLen);
+ FakeDirEntry( GetTag("maxp"), nOfs, nMaxpLen, &rBuffer[0], pFakeEntry );
+ nOfs += nMaxpLen;
+ eStatus = ATSFontGetTable( rFont, GetTag("name"), 0, nNameLen, (void*)&rBuffer[nOfs], &nNameLen);
+ FakeDirEntry( GetTag("name"), nOfs, nNameLen, &rBuffer[0], pFakeEntry );
+ nOfs += nNameLen;
+ if( nPrepLen ) {
+ eStatus = ATSFontGetTable( rFont, GetTag("prep"), 0, nPrepLen, (void*)&rBuffer[nOfs], &nPrepLen);
+ FakeDirEntry( GetTag("prep"), nOfs, nPrepLen, &rBuffer[0], pFakeEntry );
+ nOfs += nPrepLen;
+ }
+
+ DBG_ASSERT( (nOfs==nTotalLen), "IosSalGraphics::CreateFontSubset (nOfs!=nTotalLen)");
+#endif
+ return sal_True;
+}
+
+sal_Bool IosSalGraphics::CreateFontSubset( const rtl::OUString& rToFile,
+ const ImplFontData* pFontData, long* pGlyphIDs, sal_uInt8* pEncoding,
+ sal_Int32* pGlyphWidths, int nGlyphCount, FontSubsetInfo& rInfo )
+{
+ // TODO: move more of the functionality here into the generic subsetter code
+
+ // prepare the requested file name for writing the font-subset file
+ rtl::OUString aSysPath;
+ if( osl_File_E_None != osl_getSystemPathFromFileURL( rToFile.pData, &aSysPath.pData ) )
+ return sal_False;
+ const rtl_TextEncoding aThreadEncoding = osl_getThreadTextEncoding();
+ const ByteString aToFile( rtl::OUStringToOString( aSysPath, aThreadEncoding ) );
+
+ // get the raw-bytes from the font to be subset
+ ByteVector aBuffer;
+ bool bCffOnly = false;
+ if( !GetRawFontData( pFontData, aBuffer, &bCffOnly ) )
+ return sal_False;
+
+ // handle CFF-subsetting
+ if( bCffOnly )
+ {
+ // provide the raw-CFF data to the subsetter
+ ByteCount nCffLen = aBuffer.size();
+ rInfo.LoadFont( FontSubsetInfo::CFF_FONT, &aBuffer[0], nCffLen );
+
+ // NOTE: assuming that all glyphids requested on Ios are fully translated
+
+ // make the subsetter provide the requested subset
+ FILE* pOutFile = fopen( aToFile.GetBuffer(), "wb" );
+ bool bRC = rInfo.CreateFontSubset( FontSubsetInfo::TYPE1_PFB, pOutFile, NULL,
+ pGlyphIDs, pEncoding, nGlyphCount, pGlyphWidths );
+ fclose( pOutFile );
+ return bRC;
+ }
+
+ // TODO: modernize psprint's horrible fontsubset C-API
+ // this probably only makes sense after the switch to another SCM
+ // that can preserve change history after file renames
+
+ // prepare data for psprint's font subsetter
+ TrueTypeFont* pSftFont = NULL;
+ int nRC = ::OpenTTFontBuffer( (void*)&aBuffer[0], aBuffer.size(), 0, &pSftFont);
+ if( nRC != SF_OK )
+ return sal_False;
+
+ // get details about the subsetted font
+ TTGlobalFontInfo aTTInfo;
+ ::GetTTGlobalFontInfo( pSftFont, &aTTInfo );
+ rInfo.m_nFontType = FontSubsetInfo::SFNT_TTF;
+ rInfo.m_aPSName = String( aTTInfo.psname, RTL_TEXTENCODING_UTF8 );
+ rInfo.m_aFontBBox = Rectangle( Point( aTTInfo.xMin, aTTInfo.yMin ),
+ Point( aTTInfo.xMax, aTTInfo.yMax ) );
+ rInfo.m_nCapHeight = aTTInfo.yMax; // Well ...
+ rInfo.m_nAscent = +aTTInfo.winAscent;
+ rInfo.m_nDescent = -aTTInfo.winDescent;
+ // mac fonts usually do not have an OS2-table
+ // => get valid ascent/descent values from other tables
+ if( !rInfo.m_nAscent )
+ rInfo.m_nAscent = +aTTInfo.typoAscender;
+ if( !rInfo.m_nAscent )
+ rInfo.m_nAscent = +aTTInfo.ascender;
+ if( !rInfo.m_nDescent )
+ rInfo.m_nDescent = +aTTInfo.typoDescender;
+ if( !rInfo.m_nDescent )
+ rInfo.m_nDescent = -aTTInfo.descender;
+
+ // subset glyphs and get their properties
+ // take care that subset fonts require the NotDef glyph in pos 0
+ int nOrigCount = nGlyphCount;
+ sal_uInt16 aShortIDs[ 256 ];
+ sal_uInt8 aTempEncs[ 256 ];
+
+ int nNotDef = -1;
+ for( int i = 0; i < nGlyphCount; ++i )
+ {
+ aTempEncs[i] = pEncoding[i];
+ sal_uInt32 nGlyphIdx = pGlyphIDs[i] & GF_IDXMASK;
+ if( pGlyphIDs[i] & GF_ISCHAR )
+ {
+ bool bVertical = (pGlyphIDs[i] & GF_ROTMASK) != 0;
+ nGlyphIdx = ::MapChar( pSftFont, static_cast<sal_uInt16>(nGlyphIdx), bVertical );
+ if( nGlyphIdx == 0 && pFontData->IsSymbolFont() )
+ {
+ // #i12824# emulate symbol aliasing U+FXXX <-> U+0XXX
+ nGlyphIdx = pGlyphIDs[i] & GF_IDXMASK;
+ nGlyphIdx = (nGlyphIdx & 0xF000) ? (nGlyphIdx & 0x00FF) : (nGlyphIdx | 0xF000 );
+ nGlyphIdx = ::MapChar( pSftFont, static_cast<sal_uInt16>(nGlyphIdx), bVertical );
+ }
+ }
+ aShortIDs[i] = static_cast<sal_uInt16>( nGlyphIdx );
+ if( !nGlyphIdx )
+ if( nNotDef < 0 )
+ nNotDef = i; // first NotDef glyph found
+ }
+
+ if( nNotDef != 0 )
+ {
+ // add fake NotDef glyph if needed
+ if( nNotDef < 0 )
+ nNotDef = nGlyphCount++;
+
+ // NotDef glyph must be in pos 0 => swap glyphids
+ aShortIDs[ nNotDef ] = aShortIDs[0];
+ aTempEncs[ nNotDef ] = aTempEncs[0];
+ aShortIDs[0] = 0;
+ aTempEncs[0] = 0;
+ }
+ DBG_ASSERT( nGlyphCount < 257, "too many glyphs for subsetting" );
+
+ // TODO: where to get bVertical?
+ const bool bVertical = false;
+
+ // fill the pGlyphWidths array
+ // while making sure that the NotDef glyph is at index==0
+ TTSimpleGlyphMetrics* pGlyphMetrics =
+ ::GetTTSimpleGlyphMetrics( pSftFont, aShortIDs, nGlyphCount, bVertical );
+ if( !pGlyphMetrics )
+ return sal_False;
+ sal_uInt16 nNotDefAdv = pGlyphMetrics[0].adv;
+ pGlyphMetrics[0].adv = pGlyphMetrics[nNotDef].adv;
+ pGlyphMetrics[nNotDef].adv = nNotDefAdv;
+ for( int i = 0; i < nOrigCount; ++i )
+ pGlyphWidths[i] = pGlyphMetrics[i].adv;
+ free( pGlyphMetrics );
+
+ // write subset into destination file
+ nRC = ::CreateTTFromTTGlyphs( pSftFont, aToFile.GetBuffer(), aShortIDs,
+ aTempEncs, nGlyphCount, 0, NULL, 0 );
+ ::CloseTTFont(pSftFont);
+ return (nRC == SF_OK);
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::GetGlyphWidths( const ImplFontData* pFontData, bool bVertical,
+ Int32Vector& rGlyphWidths, Ucs2UIntMap& rUnicodeEnc )
+{
+ rGlyphWidths.clear();
+ rUnicodeEnc.clear();
+
+ if( pFontData->IsSubsettable() )
+ {
+ ByteVector aBuffer;
+ if( !GetRawFontData( pFontData, aBuffer, NULL ) )
+ return;
+
+ // TODO: modernize psprint's horrible fontsubset C-API
+ // this probably only makes sense after the switch to another SCM
+ // that can preserve change history after file renames
+
+ // use the font subsetter to get the widths
+ TrueTypeFont* pSftFont = NULL;
+ int nRC = ::OpenTTFontBuffer( (void*)&aBuffer[0], aBuffer.size(), 0, &pSftFont);
+ if( nRC != SF_OK )
+ return;
+
+ const int nGlyphCount = ::GetTTGlyphCount( pSftFont );
+ if( nGlyphCount > 0 )
+ {
+ // get glyph metrics
+ rGlyphWidths.resize(nGlyphCount);
+ std::vector<sal_uInt16> aGlyphIds(nGlyphCount);
+ for( int i = 0; i < nGlyphCount; i++ )
+ aGlyphIds[i] = static_cast<sal_uInt16>(i);
+ const TTSimpleGlyphMetrics* pGlyphMetrics = ::GetTTSimpleGlyphMetrics(
+ pSftFont, &aGlyphIds[0], nGlyphCount, bVertical );
+ if( pGlyphMetrics )
+ {
+ for( int i = 0; i < nGlyphCount; ++i )
+ rGlyphWidths[i] = pGlyphMetrics[i].adv;
+ free( (void*)pGlyphMetrics );
+ }
+
+ const ImplFontCharMap* pMap = mpIosFontData->GetImplFontCharMap();
+ DBG_ASSERT( pMap && pMap->GetCharCount(), "no charmap" );
+ pMap->AddReference(); // TODO: add and use RAII object instead
+
+ // get unicode<->glyph encoding
+ // TODO? avoid sft mapping by using the pMap itself
+ int nCharCount = pMap->GetCharCount();
+ sal_uInt32 nChar = pMap->GetFirstChar();
+ for(; --nCharCount >= 0; nChar = pMap->GetNextChar( nChar ) )
+ {
+ if( nChar > 0xFFFF ) // TODO: allow UTF-32 chars
+ break;
+ sal_Ucs nUcsChar = static_cast<sal_Ucs>(nChar);
+ sal_uInt32 nGlyph = ::MapChar( pSftFont, nUcsChar, bVertical );
+ if( nGlyph > 0 )
+ rUnicodeEnc[ nUcsChar ] = nGlyph;
+ }
+
+ pMap->DeReference(); // TODO: add and use RAII object instead
+ }
+
+ ::CloseTTFont( pSftFont );
+ }
+ else if( pFontData->IsEmbeddable() )
+ {
+ // get individual character widths
+ OSL_FAIL("not implemented for non-subsettable fonts!\n");
+ }
+}
+
+// -----------------------------------------------------------------------
+
+const Ucs2SIntMap* IosSalGraphics::GetFontEncodingVector(
+ const ImplFontData*, const Ucs2OStrMap** /*ppNonEncoded*/ )
+{
+ return NULL;
+}
+
+// -----------------------------------------------------------------------
+
+const void* IosSalGraphics::GetEmbedFontData( const ImplFontData*,
+ const sal_Ucs* /*pUnicodes*/,
+ sal_Int32* /*pWidths*/,
+ FontSubsetInfo&,
+ long* /*pDataLen*/ )
+{
+ return NULL;
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::FreeEmbedFontData( const void* pData, long /*nDataLen*/ )
+{
+ // TODO: implementing this only makes sense when the implementation of
+ // IosSalGraphics::GetEmbedFontData() returns non-NULL
+ (void)pData;
+ DBG_ASSERT( (pData!=NULL), "IosSalGraphics::FreeEmbedFontData() is not implemented\n");
+}
+
+// -----------------------------------------------------------------------
+
+SystemFontData IosSalGraphics::GetSysFontData( int /* nFallbacklevel */ ) const
+{
+ SystemFontData aSysFontData;
+ OSStatus err;
+ aSysFontData.nSize = sizeof( SystemFontData );
+
+#if 0
+ // NOTE: Native ATSU font fallbacks are used, not the VCL fallbacks.
+ ATSUFontID fontId;
+ err = ATSUGetAttribute( maATSUStyle, kATSUFontTag, sizeof(fontId), &fontId, 0 );
+ if (err) fontId = 0;
+ aSysFontData.aATSUFontID = (void *) fontId;
+
+ Boolean bFbold;
+ err = ATSUGetAttribute( maATSUStyle, kATSUQDBoldfaceTag, sizeof(bFbold), &bFbold, 0 );
+ if (err) bFbold = FALSE;
+ aSysFontData.bFakeBold = (bool) bFbold;
+
+ Boolean bFItalic;
+ err = ATSUGetAttribute( maATSUStyle, kATSUQDItalicTag, sizeof(bFItalic), &bFItalic, 0 );
+ if (err) bFItalic = FALSE;
+ aSysFontData.bFakeItalic = (bool) bFItalic;
+
+ ATSUVerticalCharacterType aVerticalCharacterType;
+ err = ATSUGetAttribute( maATSUStyle, kATSUVerticalCharacterTag, sizeof(aVerticalCharacterType), &aVerticalCharacterType, 0 );
+ if (!err && aVerticalCharacterType == kATSUStronglyVertical) {
+ aSysFontData.bVerticalCharacterType = true;
+ } else {
+ aSysFontData.bVerticalCharacterType = false;
+ }
+
+ aSysFontData.bAntialias = !mbNonAntialiasedText;
+#endif
+ return aSysFontData;
+}
+
+// -----------------------------------------------------------------------
+
+SystemGraphicsData IosSalGraphics::GetGraphicsData() const
+{
+ SystemGraphicsData aRes;
+ aRes.nSize = sizeof(aRes);
+ aRes.rCGContext = mrContext;
+ return aRes;
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalGraphics::SetXORMode( bool bSet, bool bInvertOnly )
+{
+ // return early if XOR mode remains unchanged
+ if( mbPrinter )
+ return;
+
+ if( ! bSet && mnXorMode == 2 )
+ {
+ CGContextSetBlendMode( mrContext, kCGBlendModeNormal );
+ mnXorMode = 0;
+ return;
+ }
+ else if( bSet && bInvertOnly && mnXorMode == 0)
+ {
+ CGContextSetBlendMode( mrContext, kCGBlendModeDifference );
+ mnXorMode = 2;
+ return;
+ }
+
+ if( (mpXorEmulation == NULL) && !bSet )
+ return;
+ if( (mpXorEmulation != NULL) && (bSet == mpXorEmulation->IsEnabled()) )
+ return;
+ if( !CheckContext() )
+ return;
+
+ // prepare XOR emulation
+ if( !mpXorEmulation )
+ {
+ mpXorEmulation = new XorEmulation();
+ mpXorEmulation->SetTarget( mnWidth, mnHeight, mnBitmapDepth, mrContext, mxLayer );
+ }
+
+ // change the XOR mode
+ if( bSet )
+ {
+ mpXorEmulation->Enable();
+ mrContext = mpXorEmulation->GetMaskContext();
+ mnXorMode = 1;
+ }
+ else
+ {
+ mpXorEmulation->UpdateTarget();
+ mpXorEmulation->Disable();
+ mrContext = mpXorEmulation->GetTargetContext();
+ mnXorMode = 0;
+ }
+}
+
+// -----------------------------------------------------------------------
+
+// apply the XOR mask to the target context if active and dirty
+void IosSalGraphics::ApplyXorContext()
+{
+ if( !mpXorEmulation )
+ return;
+ if( mpXorEmulation->UpdateTarget() )
+ RefreshRect( 0, 0, mnWidth, mnHeight ); // TODO: refresh minimal changerect
+}
+
+// ======================================================================
+
+XorEmulation::XorEmulation()
+: mxTargetLayer( NULL )
+, mxTargetContext( NULL )
+, mxMaskContext( NULL )
+, mxTempContext( NULL )
+, mpMaskBuffer( NULL )
+, mpTempBuffer( NULL )
+, mnBufferLongs( 0 )
+, mbIsEnabled( false )
+{}
+
+// ----------------------------------------------------------------------
+
+XorEmulation::~XorEmulation()
+{
+ Disable();
+ SetTarget( 0, 0, 0, NULL, NULL );
+}
+
+// -----------------------------------------------------------------------
+
+void XorEmulation::SetTarget( int nWidth, int nHeight, int nTargetDepth,
+ CGContextRef xTargetContext, CGLayerRef xTargetLayer )
+{
+ // prepare to replace old mask+temp context
+ if( mxMaskContext )
+ {
+ // cleanup the mask context
+ CGContextRelease( mxMaskContext );
+ delete[] mpMaskBuffer;
+ mxMaskContext = NULL;
+ mpMaskBuffer = NULL;
+
+ // cleanup the temp context if needed
+ if( mxTempContext )
+ {
+ CGContextRelease( mxTempContext );
+ delete[] mpTempBuffer;
+ mxTempContext = NULL;
+ mpTempBuffer = NULL;
+ }
+ }
+
+ // return early if there is nothing more to do
+ if( !xTargetContext )
+ return;
+
+ // retarget drawing operations to the XOR mask
+ mxTargetLayer = xTargetLayer;
+ mxTargetContext = xTargetContext;
+
+ // prepare creation of matching CGBitmaps
+ CGColorSpaceRef aCGColorSpace = GetSalData()->mxRGBSpace;
+ CGBitmapInfo aCGBmpInfo = kCGImageAlphaNoneSkipFirst;
+ int nBitDepth = nTargetDepth;
+ if( !nBitDepth )
+ nBitDepth = 32;
+ int nBytesPerRow = (nBitDepth == 16) ? 2 : 4;
+ const size_t nBitsPerComponent = (nBitDepth == 16) ? 5 : 8;
+ if( nBitDepth <= 8 )
+ {
+ aCGColorSpace = GetSalData()->mxGraySpace;
+ aCGBmpInfo = kCGImageAlphaNone;
+ nBytesPerRow = 1;
+ }
+ nBytesPerRow *= nWidth;
+ mnBufferLongs = (nHeight * nBytesPerRow + sizeof(sal_uLong)-1) / sizeof(sal_uLong);
+
+ // create a XorMask context
+ mpMaskBuffer = new sal_uLong[ mnBufferLongs ];
+ mxMaskContext = ::CGBitmapContextCreate( mpMaskBuffer,
+ nWidth, nHeight, nBitsPerComponent, nBytesPerRow,
+ aCGColorSpace, aCGBmpInfo );
+ // reset the XOR mask to black
+ memset( mpMaskBuffer, 0, mnBufferLongs * sizeof(sal_uLong) );
+
+ // a bitmap context will be needed for manual XORing
+ // create one unless the target context is a bitmap context
+ if( nTargetDepth )
+ mpTempBuffer = (sal_uLong*)CGBitmapContextGetData( mxTargetContext );
+ if( !mpTempBuffer )
+ {
+ // create a bitmap context matching to the target context
+ mpTempBuffer = new sal_uLong[ mnBufferLongs ];
+ mxTempContext = ::CGBitmapContextCreate( mpTempBuffer,
+ nWidth, nHeight, nBitsPerComponent, nBytesPerRow,
+ aCGColorSpace, aCGBmpInfo );
+ }
+
+ // initialize XOR mask context for drawing
+ CGContextSetFillColorSpace( mxMaskContext, aCGColorSpace );
+ CGContextSetStrokeColorSpace( mxMaskContext, aCGColorSpace );
+ CGContextSetShouldAntialias( mxMaskContext, false );
+
+ // improve the XorMask's XOR emulation a litte
+ // NOTE: currently only enabled for monochrome contexts
+ if( aCGColorSpace == GetSalData()->mxGraySpace )
+ CGContextSetBlendMode( mxMaskContext, kCGBlendModeDifference );
+
+ // intialize the transformation matrix to the drawing target
+ const CGAffineTransform aCTM = CGContextGetCTM( xTargetContext );
+ CGContextConcatCTM( mxMaskContext, aCTM );
+ if( mxTempContext )
+ CGContextConcatCTM( mxTempContext, aCTM );
+
+ // initialize the default XorMask graphics state
+ CGContextSaveGState( mxMaskContext );
+}
+
+// ----------------------------------------------------------------------
+
+bool XorEmulation::UpdateTarget()
+{
+ if( !IsEnabled() )
+ return false;
+
+ // update the temp bitmap buffer if needed
+ if( mxTempContext )
+ CGContextDrawLayerAtPoint( mxTempContext, CGPointZero, mxTargetLayer );
+
+ // do a manual XOR with the XorMask
+ // this approach suffices for simple color manipulations
+ // and also the complex-clipping-XOR-trick used in metafiles
+ const sal_uLong* pSrc = mpMaskBuffer;
+ sal_uLong* pDst = mpTempBuffer;
+ for( int i = mnBufferLongs; --i >= 0;)
+ *(pDst++) ^= *(pSrc++);
+
+ // write back the XOR results to the target context
+ if( mxTempContext )
+ {
+ CGImageRef xXorImage = CGBitmapContextCreateImage( mxTempContext );
+ const int nWidth = (int)CGImageGetWidth( xXorImage );
+ const int nHeight = (int)CGImageGetHeight( xXorImage );
+ // TODO: update minimal changerect
+ const CGRect aFullRect = {{0,0},{nWidth,nHeight}};
+ CGContextDrawImage( mxTargetContext, aFullRect, xXorImage );
+ CGImageRelease( xXorImage );
+ }
+
+ // reset the XorMask to black again
+ // TODO: not needed for last update
+ memset( mpMaskBuffer, 0, mnBufferLongs * sizeof(sal_uLong) );
+
+ // TODO: return FALSE if target was not changed
+ return true;
+}
+
+// =======================================================================
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/ios/source/gdi/salvd.cxx b/vcl/ios/source/gdi/salvd.cxx
new file mode 100644
index 000000000000..16799310b1a1
--- /dev/null
+++ b/vcl/ios/source/gdi/salvd.cxx
@@ -0,0 +1,260 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_vcl.hxx"
+
+#include "vcl/svapp.hxx"
+#include "vcl/sysdata.hxx"
+
+#include "ios/salvd.h"
+#include "ios/salinst.h"
+#include "ios/salgdi.h"
+#include "ios/saldata.hxx"
+#include "ios/salframe.h"
+
+// -----------------------------------------------------------------------
+
+SalVirtualDevice* IosSalInstance::CreateVirtualDevice( SalGraphics* pGraphics,
+ long nDX, long nDY, sal_uInt16 nBitCount, const SystemGraphicsData *pData )
+{
+ // #i92075# can be called first in a thread
+ SalData::ensureThreadAutoreleasePool();
+
+ return new IosSalVirtualDevice( static_cast< IosSalGraphics* >( pGraphics ), nDX, nDY, nBitCount, pData );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalInstance::DestroyVirtualDevice( SalVirtualDevice* pDevice )
+{
+ delete pDevice;
+}
+
+// =======================================================================
+
+IosSalVirtualDevice::IosSalVirtualDevice( IosSalGraphics* pGraphic, long nDX, long nDY, sal_uInt16 nBitCount, const SystemGraphicsData *pData )
+: mbGraphicsUsed( false )
+, mxBitmapContext( NULL )
+, mnBitmapDepth( 0 )
+, mxLayer( NULL )
+{
+ if( pGraphic && pData && pData->rCGContext )
+ {
+ // Create virtual device based on existing SystemGraphicsData
+ // We ignore nDx and nDY, as the desired size comes from the SystemGraphicsData
+ mbForeignContext = true; // the mxContext is from pData
+ mpGraphics = new IosSalGraphics( /*pGraphic*/ );
+ mpGraphics->SetVirDevGraphics( mxLayer, pData->rCGContext );
+ }
+ else
+ {
+ // create empty new virtual device
+ mbForeignContext = false; // the mxContext is created within VCL
+ mpGraphics = new IosSalGraphics(); // never fails
+ mnBitmapDepth = nBitCount;
+
+ // inherit resolution from reference device
+ if( pGraphic )
+ {
+ IosSalFrame* pFrame = pGraphic->getGraphicsFrame();
+ if( pFrame && IosSalFrame::isAlive( pFrame ) )
+ {
+ mpGraphics->setGraphicsFrame( pFrame );
+ mpGraphics->copyResolution( *pGraphic );
+ }
+ }
+
+ if( nDX && nDY )
+ SetSize( nDX, nDY );
+
+ // NOTE: if SetSize does not succeed, we just ignore the nDX and nDY
+ }
+}
+
+// -----------------------------------------------------------------------
+
+IosSalVirtualDevice::~IosSalVirtualDevice()
+{
+ if( mpGraphics )
+ {
+ mpGraphics->SetVirDevGraphics( NULL, NULL );
+ delete mpGraphics;
+ mpGraphics = 0;
+ }
+ Destroy();
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalVirtualDevice::Destroy()
+{
+ if( mbForeignContext ) {
+ // Do not delete mxContext that we have received from outside VCL
+ mxLayer = NULL;
+ return;
+ }
+
+ if( mxLayer )
+ {
+ if( mpGraphics )
+ mpGraphics->SetVirDevGraphics( NULL, NULL );
+ CGLayerRelease( mxLayer );
+ mxLayer = NULL;
+ }
+
+ if( mxBitmapContext )
+ {
+ void* pRawData = CGBitmapContextGetData( mxBitmapContext );
+ rtl_freeMemory( pRawData );
+ CGContextRelease( mxBitmapContext );
+ mxBitmapContext = NULL;
+ }
+}
+
+// -----------------------------------------------------------------------
+
+SalGraphics* IosSalVirtualDevice::GetGraphics()
+{
+ if( mbGraphicsUsed || !mpGraphics )
+ return 0;
+
+ mbGraphicsUsed = true;
+ return mpGraphics;
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalVirtualDevice::ReleaseGraphics( SalGraphics* )
+{
+ mbGraphicsUsed = false;
+}
+
+// -----------------------------------------------------------------------
+
+sal_Bool IosSalVirtualDevice::SetSize( long nDX, long nDY )
+{
+ if( mbForeignContext )
+ {
+ // Do not delete/resize mxContext that we have received from outside VCL
+ return true;
+ }
+
+ if( mxLayer )
+ {
+ const CGSize aSize = CGLayerGetSize( mxLayer );
+ if( (nDX == aSize.width) && (nDY == aSize.height) )
+ {
+ // Yay, we do not have to do anything :)
+ return true;
+ }
+ }
+
+ Destroy();
+
+ // create a Quartz layer matching to the intended virdev usage
+ CGContextRef xCGContext = NULL;
+ if( mnBitmapDepth && (mnBitmapDepth < 16) )
+ {
+ mnBitmapDepth = 8; // TODO: are 1bit vdevs worth it?
+ const CGColorSpaceRef aCGColorSpace = GetSalData()->mxGraySpace;
+ const CGBitmapInfo aCGBmpInfo = kCGImageAlphaNone;
+ const int nBytesPerRow = (mnBitmapDepth * nDX + 7) / 8;
+
+ void* pRawData = rtl_allocateMemory( nBytesPerRow * nDY );
+ mxBitmapContext = ::CGBitmapContextCreate( pRawData, nDX, nDY,
+ mnBitmapDepth, nBytesPerRow, aCGColorSpace, aCGBmpInfo );
+ xCGContext = mxBitmapContext;
+ }
+ else
+ {
+ // default to a UIView target context
+ IosSalFrame* pSalFrame = mpGraphics->getGraphicsFrame();
+ if( !pSalFrame && !GetSalData()->maFrames.empty() )
+ pSalFrame = *GetSalData()->maFrames.begin();
+ if( pSalFrame )
+ {
+#if 0 // No idea...
+ // #i91990#
+ UIWindow* pWindow = pSalFrame->getWindow();
+ if ( pWindow )
+ {
+ UIGraphicsContext* pUIContext = [UIGraphicsContext graphicsContextWithWindow: pWindow];
+ if( pUIContext )
+ xCGContext = reinterpret_cast<CGContextRef>([pUIContext graphicsPort]);
+ }
+ else
+#endif
+ {
+ // fall back to a bitmap context
+ mnBitmapDepth = 32;
+ const CGColorSpaceRef aCGColorSpace = GetSalData()->mxRGBSpace;
+ const CGBitmapInfo aCGBmpInfo = kCGImageAlphaNoneSkipFirst;
+ const int nBytesPerRow = (mnBitmapDepth * nDX) / 8;
+
+ void* pRawData = rtl_allocateMemory( nBytesPerRow * nDY );
+ mxBitmapContext = ::CGBitmapContextCreate( pRawData, nDX, nDY,
+ 8, nBytesPerRow, aCGColorSpace, aCGBmpInfo );
+ xCGContext = mxBitmapContext;
+ }
+ }
+ }
+
+ DBG_ASSERT( xCGContext, "no context" );
+
+ const CGSize aNewSize = { nDX, nDY };
+ mxLayer = CGLayerCreateWithContext( xCGContext, aNewSize, NULL );
+
+ if( mxLayer && mpGraphics )
+ {
+ // get the matching Quartz context
+ CGContextRef xDrawContext = CGLayerGetContext( mxLayer );
+ mpGraphics->SetVirDevGraphics( mxLayer, xDrawContext, mnBitmapDepth );
+ }
+
+ return (mxLayer != NULL);
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalVirtualDevice::GetSize( long& rWidth, long& rHeight )
+{
+ if( mxLayer )
+ {
+ const CGSize aSize = CGLayerGetSize( mxLayer );
+ rWidth = static_cast<long>(aSize.width);
+ rHeight = static_cast<long>(aSize.height);
+ }
+ else
+ {
+ rWidth = 0;
+ rHeight = 0;
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit (git 2.34.1) at 2024-12-29 00:38:13 +0000