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|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/config.h>
#include <config_folders.h>
#include <basebmp/scanlineformats.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/range/b2drectangle.hxx>
#include <osl/file.hxx>
#include <osl/mutex.hxx>
#include <osl/process.h>
#include <rtl/bootstrap.h>
#include <rtl/strbuf.hxx>
#include <vcl/metric.hxx>
#include <vcl/fontcharmap.hxx>
#include <vcl/svapp.hxx>
#include <vcl/sysdata.hxx>
#include "ctfonts.hxx"
#include "fontsubset.hxx"
#include "impfont.hxx"
#ifdef MACOSX
#include "osx/salframe.h"
#endif
#include "quartz/salgdi.h"
#include "quartz/utils.h"
#ifdef IOS
#include "saldatabasic.hxx"
#endif
#include "sallayout.hxx"
#include "sft.hxx"
using namespace vcl;
CoreTextFontFace::CoreTextFontFace( const CoreTextFontFace& rSrc )
: PhysicalFontFace( rSrc )
, mnFontId( rSrc.mnFontId )
, mbOs2Read( rSrc.mbOs2Read )
, mbHasOs2Table( rSrc.mbHasOs2Table )
, mbCmapEncodingRead( rSrc.mbCmapEncodingRead )
{
if( rSrc.mpCharMap )
mpCharMap = rSrc.mpCharMap;
}
CoreTextFontFace::CoreTextFontFace( const ImplFontAttributes& rDFA, sal_IntPtr nFontId )
: PhysicalFontFace( rDFA )
, mnFontId( nFontId )
, mbOs2Read( false )
, mbHasOs2Table( false )
, mbCmapEncodingRead( false )
, mbFontCapabilitiesRead( false )
{
}
CoreTextFontFace::~CoreTextFontFace()
{
if( mpCharMap )
{
mpCharMap = nullptr;
}
}
sal_IntPtr CoreTextFontFace::GetFontId() const
{
return (sal_IntPtr)mnFontId;
}
static unsigned GetUShort( const unsigned char* p ){return((p[0]<<8)+p[1]);}
const FontCharMapPtr CoreTextFontFace::GetFontCharMap() const
{
// return the cached charmap
if( mpCharMap )
return mpCharMap;
// set the default charmap
FontCharMapPtr pCharMap( new FontCharMap() );
mpCharMap = pCharMap;
// get the CMAP byte size
// allocate a buffer for the CMAP raw data
const int nBufSize = GetFontTable( "cmap", nullptr );
DBG_ASSERT( (nBufSize > 0), "CoreTextFontFace::GetFontCharMap : GetFontTable1 failed!\n");
if( nBufSize <= 0 )
return mpCharMap;
// get the CMAP raw data
ByteVector aBuffer( nBufSize );
const int nRawLength = GetFontTable( "cmap", &aBuffer[0] );
DBG_ASSERT( (nRawLength > 0), "CoreTextFontFace::GetFontCharMap : GetFontTable2 failed!\n");
if( nRawLength <= 0 )
return mpCharMap;
DBG_ASSERT( (nBufSize==nRawLength), "CoreTextFontFace::GetFontCharMap : ByteCount mismatch!\n");
// parse the CMAP
CmapResult aCmapResult;
if( ParseCMAP( &aBuffer[0], nRawLength, aCmapResult ) )
{
FontCharMapPtr pDefFontCharMap( new FontCharMap(aCmapResult) );
// create the matching charmap
mpCharMap = pDefFontCharMap;
}
return mpCharMap;
}
bool CoreTextFontFace::GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const
{
// read this only once per font
if( mbFontCapabilitiesRead )
{
rFontCapabilities = maFontCapabilities;
return !rFontCapabilities.maUnicodeRange.empty() || !rFontCapabilities.maCodePageRange.empty();
}
mbFontCapabilitiesRead = true;
int nBufSize = 0;
// prepare to get the GSUB table raw data
nBufSize = GetFontTable( "GSUB", nullptr );
if( nBufSize > 0 )
{
// allocate a buffer for the GSUB raw data
ByteVector aBuffer( nBufSize );
// get the GSUB raw data
const int nRawLength = GetFontTable( "GSUB", &aBuffer[0] );
if( nRawLength > 0 )
{
const unsigned char* pGSUBTable = &aBuffer[0];
vcl::getTTScripts(maFontCapabilities.maGSUBScriptTags, pGSUBTable, nRawLength);
}
}
nBufSize = GetFontTable( "OS/2", nullptr );
if( nBufSize > 0 )
{
// allocate a buffer for the OS/2 raw data
ByteVector aBuffer( nBufSize );
// get the OS/2 raw data
const int nRawLength = GetFontTable( "OS/2", &aBuffer[0] );
if( nRawLength > 0 )
{
const unsigned char* pOS2Table = &aBuffer[0];
vcl::getTTCoverage( maFontCapabilities.maUnicodeRange,
maFontCapabilities.maCodePageRange,
pOS2Table, nRawLength);
}
}
rFontCapabilities = maFontCapabilities;
return !rFontCapabilities.maUnicodeRange.empty() || !rFontCapabilities.maCodePageRange.empty();
}
void CoreTextFontFace::ReadOs2Table() const
{
// read this only once per font
if( mbOs2Read )
return;
mbOs2Read = true;
mbHasOs2Table = false;
// prepare to get the OS/2 table raw data
const int nBufSize = GetFontTable( "OS/2", nullptr );
DBG_ASSERT( (nBufSize > 0), "CoreTextFontFace::ReadOs2Table : GetFontTable1 failed!\n");
if( nBufSize <= 0 )
return;
// get the OS/2 raw data
ByteVector aBuffer( nBufSize );
const int nRawLength = GetFontTable( "cmap", &aBuffer[0] );
DBG_ASSERT( (nRawLength > 0), "CoreTextFontFace::ReadOs2Table : GetFontTable2 failed!\n");
if( nRawLength <= 0 )
return;
DBG_ASSERT( (nBufSize==nRawLength), "CoreTextFontFace::ReadOs2Table : ByteCount mismatch!\n");
mbHasOs2Table = true;
// parse the OS/2 raw data
// TODO: also analyze panose info, etc.
}
void CoreTextFontFace::ReadMacCmapEncoding() const
{
// read this only once per font
if( mbCmapEncodingRead )
return;
mbCmapEncodingRead = true;
const int nBufSize = GetFontTable( "cmap", nullptr );
if( nBufSize <= 0 )
return;
// get the CMAP raw data
ByteVector aBuffer( nBufSize );
const int nRawLength = GetFontTable( "cmap", &aBuffer[0] );
if( nRawLength < 24 )
return;
DBG_ASSERT( (nBufSize==nRawLength), "CoreTextFontFace::ReadMacCmapEncoding : ByteCount mismatch!\n");
const unsigned char* pCmap = &aBuffer[0];
if( GetUShort( pCmap ) != 0x0000 )
return;
}
AquaSalGraphics::AquaSalGraphics()
: mxLayer( nullptr )
, mrContext( nullptr )
#ifdef MACOSX
, mpFrame( nullptr )
#endif
#if OSL_DEBUG_LEVEL > 0
, mnContextStackDepth( 0 )
#endif
, mpXorEmulation( nullptr )
, mnXorMode( 0 )
, mnWidth( 0 )
, mnHeight( 0 )
, mnBitmapDepth( 0 )
, mnRealDPIX( 0 )
, mnRealDPIY( 0 )
, mxClipPath( nullptr )
, maLineColor( COL_WHITE )
, maFillColor( COL_BLACK )
, mpFontData( nullptr )
, mpTextStyle( nullptr )
, maTextColor( COL_BLACK )
, mbNonAntialiasedText( false )
, mbPrinter( false )
, mbVirDev( false )
#ifdef MACOSX
, mbWindow( false )
#else
, mbForeignContext( false )
#endif
{
SAL_INFO( "vcl.quartz", "AquaSalGraphics::AquaSalGraphics() this=" << this );
}
AquaSalGraphics::~AquaSalGraphics()
{
SAL_INFO( "vcl.quartz", "AquaSalGraphics::~AquaSalGraphics() this=" << this );
if( mxClipPath )
{
SAL_INFO("vcl.cg", "CGPathRelease(" << mxClipPath << ")" );
CGPathRelease( mxClipPath );
}
delete mpTextStyle;
if( mpXorEmulation )
delete mpXorEmulation;
#ifdef IOS
if (mbForeignContext)
return;
#endif
if( mxLayer )
{
SAL_INFO("vcl.cg", "CGLayerRelease(" << mxLayer << ")" );
CGLayerRelease( mxLayer );
}
else if( mrContext
#ifdef MACOSX
&& mbWindow
#endif
)
{
// destroy backbuffer bitmap context that we created ourself
SAL_INFO("vcl.cg", "CGContextRelease(" << mrContext << ")" );
CGContextRelease( mrContext );
mrContext = nullptr;
}
}
SalGraphicsImpl* AquaSalGraphics::GetImpl() const
{
return nullptr;
}
void AquaSalGraphics::SetTextColor( SalColor nSalColor )
{
maTextColor = RGBAColor( nSalColor );
// SAL_ DEBUG(std::hex << nSalColor << std::dec << "={" << maTextColor.GetRed() << ", " << maTextColor.GetGreen() << ", " << maTextColor.GetBlue() << ", " << maTextColor.GetAlpha() << "}");
}
void AquaSalGraphics::GetFontAttributes( ImplFontAttributes* pFontAttributes, int /*nFallbackLevel*/ )
{
mpTextStyle->GetFontAttributes( *pFontAttributes );
}
static bool AddTempDevFont(const OUString& rFontFileURL)
{
OUString aUSytemPath;
OSL_VERIFY( !osl::FileBase::getSystemPathFromFileURL( rFontFileURL, aUSytemPath ) );
OString aCFileName = OUStringToOString( aUSytemPath, RTL_TEXTENCODING_UTF8 );
CFStringRef rFontPath = CFStringCreateWithCString(nullptr, aCFileName.getStr(), kCFStringEncodingUTF8);
CFURLRef rFontURL = CFURLCreateWithFileSystemPath(nullptr, rFontPath, kCFURLPOSIXPathStyle, true);
CFErrorRef error;
bool success = CTFontManagerRegisterFontsForURL(rFontURL, kCTFontManagerScopeProcess, &error);
if (!success)
{
CFRelease(error);
}
return success;
}
static void AddTempFontDir( const OUString &rFontDirUrl )
{
osl::Directory aFontDir( rFontDirUrl );
osl::FileBase::RC rcOSL = aFontDir.open();
if( rcOSL == osl::FileBase::E_None )
{
osl::DirectoryItem aDirItem;
while( aFontDir.getNextItem( aDirItem, 10 ) == osl::FileBase::E_None )
{
osl::FileStatus aFileStatus( osl_FileStatus_Mask_FileURL );
rcOSL = aDirItem.getFileStatus( aFileStatus );
if ( rcOSL == osl::FileBase::E_None )
{
AddTempDevFont(aFileStatus.getFileURL());
}
}
}
}
static void AddLocalTempFontDirs()
{
static bool bFirst = true;
if( !bFirst )
return;
bFirst = false;
// add private font files
OUString aBrandStr( "$BRAND_BASE_DIR" );
rtl_bootstrap_expandMacros( &aBrandStr.pData );
AddTempFontDir( aBrandStr + "/" LIBO_SHARE_FOLDER "/fonts/truetype/" );
}
void AquaSalGraphics::GetDevFontList( PhysicalFontCollection* pFontCollection )
{
DBG_ASSERT( pFontCollection, "AquaSalGraphics::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 )
pSalData->mpFontList = GetCoretextFontList();
// Copy all PhysicalFontFace objects contained in the SystemFontList
pSalData->mpFontList->AnnounceFonts( *pFontCollection );
}
void AquaSalGraphics::ClearDevFontCache()
{
SalData* pSalData = GetSalData();
delete pSalData->mpFontList;
pSalData->mpFontList = nullptr;
}
bool AquaSalGraphics::AddTempDevFont( PhysicalFontCollection*,
const OUString& rFontFileURL, const OUString& /*rFontName*/ )
{
return ::AddTempDevFont(rFontFileURL);
}
bool AquaSalGraphics::GetGlyphOutline( sal_GlyphId aGlyphId, basegfx::B2DPolyPolygon& rPolyPoly )
{
const bool bRC = mpTextStyle->GetGlyphOutline( aGlyphId, rPolyPoly );
return bRC;
}
bool AquaSalGraphics::GetGlyphBoundRect( sal_GlyphId aGlyphId, Rectangle& rRect )
{
const bool bRC = mpTextStyle->GetGlyphBoundRect( aGlyphId, rRect );
return bRC;
}
void AquaSalGraphics::DrawServerFontLayout( const ServerFontLayout& )
{
}
sal_uInt16 AquaSalGraphics::SetFont( FontSelectPattern* pReqFont, int /*nFallbackLevel*/ )
{
// release the text style
delete mpTextStyle;
mpTextStyle = nullptr;
// handle NULL request meaning: release-font-resources request
if( !pReqFont )
{
mpFontData = nullptr;
return 0;
}
// update the text style
mpFontData = static_cast<const CoreTextFontFace*>( pReqFont->mpFontData );
mpTextStyle = new CoreTextStyle( *pReqFont );
SAL_INFO("vcl.ct",
"SetFont"
" to " << mpFontData->GetFamilyName()
<< ", " << mpFontData->GetStyleName()
<< " fontid=" << mpFontData->GetFontId()
<< " for " << pReqFont->GetFamilyName()
<< ", " << pReqFont->GetStyleName()
<< " weight=" << pReqFont->GetWeight()
<< " slant=" << pReqFont->GetSlantType()
<< " size=" << pReqFont->mnHeight << "x" << pReqFont->mnWidth
<< " orientation=" << pReqFont->mnOrientation
);
return 0;
}
SalLayout* AquaSalGraphics::GetTextLayout( ImplLayoutArgs& /*rArgs*/, int /*nFallbackLevel*/ )
{
SalLayout* pSalLayout = mpTextStyle->GetTextLayout();
return pSalLayout;
}
const FontCharMapPtr AquaSalGraphics::GetFontCharMap() const
{
if( !mpFontData )
{
FontCharMapPtr pFontCharMap( new FontCharMap() );
return pFontCharMap;
}
return mpFontData->GetFontCharMap();
}
bool AquaSalGraphics::GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const
{
if( !mpFontData )
return false;
return mpFontData->GetFontCapabilities(rFontCapabilities);
}
// fake a SFNT font directory entry for a font table
// see http://developer.apple.com/fonts/TTRefMan/RM06/Chap6.html#Directory
static void FakeDirEntry( const char aTag[5], ByteCount nOfs, ByteCount nLen,
const unsigned char* /*pData*/, unsigned char*& rpDest )
{
// write entry tag
rpDest[ 0] = aTag[0];
rpDest[ 1] = aTag[1];
rpDest[ 2] = aTag[2];
rpDest[ 3] = aTag[3];
// 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;
}
// fake a TTF or CFF font as directly accessing font file is not possible
// when only the fontid is known. This approach also handles *.dfont fonts.
bool AquaSalGraphics::GetRawFontData( const PhysicalFontFace* pFontData,
ByteVector& rBuffer, bool* pJustCFF )
{
const CoreTextFontFace* pMacFont = static_cast<const CoreTextFontFace*>(pFontData);
// short circuit for CFF-only fonts
const int nCffSize = pMacFont->GetFontTable( "CFF ", nullptr);
if( pJustCFF != nullptr )
{
*pJustCFF = (nCffSize > 0);
if( *pJustCFF)
{
rBuffer.resize( nCffSize);
const int nCffRead = pMacFont->GetFontTable( "CFF ", &rBuffer[0]);
if( nCffRead != nCffSize)
{
return false;
}
return true;
}
}
// get font table availability and size in bytes
const int nHeadSize = pMacFont->GetFontTable( "head", nullptr);
if( nHeadSize <= 0)
return false;
const int nMaxpSize = pMacFont->GetFontTable( "maxp", nullptr);
if( nMaxpSize <= 0)
return false;
const int nCmapSize = pMacFont->GetFontTable( "cmap", nullptr);
if( nCmapSize <= 0)
return false;
const int nNameSize = pMacFont->GetFontTable( "name", nullptr);
if( nNameSize <= 0)
return false;
const int nHheaSize = pMacFont->GetFontTable( "hhea", nullptr);
if( nHheaSize <= 0)
return false;
const int nHmtxSize = pMacFont->GetFontTable( "hmtx", nullptr);
if( nHmtxSize <= 0)
return false;
// get the ttf-glyf outline tables
int nLocaSize = 0;
int nGlyfSize = 0;
if( nCffSize <= 0)
{
nLocaSize = pMacFont->GetFontTable( "loca", nullptr);
if( nLocaSize <= 0)
return false;
nGlyfSize = pMacFont->GetFontTable( "glyf", nullptr);
if( nGlyfSize <= 0)
return false;
}
int nPrepSize = 0, nCvtSize = 0, nFpgmSize = 0;
if( nGlyfSize) // TODO: reduce PDF size by making hint subsetting optional
{
nPrepSize = pMacFont->GetFontTable( "prep", nullptr);
nCvtSize = pMacFont->GetFontTable( "cvt ", nullptr);
nFpgmSize = pMacFont->GetFontTable( "fpgm", nullptr);
}
// prepare a byte buffer for a fake font
int nTableCount = 7;
nTableCount += (nPrepSize>0?1:0) + (nCvtSize>0?1:0) + (nFpgmSize>0?1:0) + (nGlyfSize>0?1:0);
const ByteCount nFdirSize = 12 + 16*nTableCount;
ByteCount nTotalSize = nFdirSize;
nTotalSize += nHeadSize + nMaxpSize + nNameSize + nCmapSize;
if( nGlyfSize )
{
nTotalSize += nLocaSize + nGlyfSize;
}
else
{
nTotalSize += nCffSize;
}
nTotalSize += nHheaSize + nHmtxSize;
nTotalSize += nPrepSize + nCvtSize + nFpgmSize;
rBuffer.resize( nTotalSize );
// 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 = nFdirSize;
unsigned char* pFakeEntry = &rBuffer[12];
if( nCmapSize != pMacFont->GetFontTable( "cmap", &rBuffer[nOfs]))
return false;
FakeDirEntry( "cmap", nOfs, nCmapSize, &rBuffer[0], pFakeEntry );
nOfs += nCmapSize;
if( nCvtSize )
{
if( nCvtSize != pMacFont->GetFontTable( "cvt ", &rBuffer[nOfs]))
return false;
FakeDirEntry( "cvt ", nOfs, nCvtSize, &rBuffer[0], pFakeEntry );
nOfs += nCvtSize;
}
if( nFpgmSize )
{
if( nFpgmSize != pMacFont->GetFontTable( "fpgm", &rBuffer[nOfs]))
return false;
FakeDirEntry( "fpgm", nOfs, nFpgmSize, &rBuffer[0], pFakeEntry );
nOfs += nFpgmSize;
}
if( nCffSize )
{
if( nCffSize != pMacFont->GetFontTable( "CFF ", &rBuffer[nOfs]))
return false;
FakeDirEntry( "CFF ", nOfs, nCffSize, &rBuffer[0], pFakeEntry );
nOfs += nGlyfSize;
}
else
{
if( nGlyfSize != pMacFont->GetFontTable( "glyf", &rBuffer[nOfs]))
return false;
FakeDirEntry( "glyf", nOfs, nGlyfSize, &rBuffer[0], pFakeEntry );
nOfs += nGlyfSize;
if( nLocaSize != pMacFont->GetFontTable( "loca", &rBuffer[nOfs]))
return false;
FakeDirEntry( "loca", nOfs, nLocaSize, &rBuffer[0], pFakeEntry );
nOfs += nLocaSize;
}
if( nHeadSize != pMacFont->GetFontTable( "head", &rBuffer[nOfs]))
return false;
FakeDirEntry( "head", nOfs, nHeadSize, &rBuffer[0], pFakeEntry );
nOfs += nHeadSize;
if( nHheaSize != pMacFont->GetFontTable( "hhea", &rBuffer[nOfs]))
return false;
FakeDirEntry( "hhea", nOfs, nHheaSize, &rBuffer[0], pFakeEntry );
nOfs += nHheaSize;
if( nHmtxSize != pMacFont->GetFontTable( "hmtx", &rBuffer[nOfs]))
return false;
FakeDirEntry( "hmtx", nOfs, nHmtxSize, &rBuffer[0], pFakeEntry );
nOfs += nHmtxSize;
if( nMaxpSize != pMacFont->GetFontTable( "maxp", &rBuffer[nOfs]))
return false;
FakeDirEntry( "maxp", nOfs, nMaxpSize, &rBuffer[0], pFakeEntry );
nOfs += nMaxpSize;
if( nNameSize != pMacFont->GetFontTable( "name", &rBuffer[nOfs]))
return false;
FakeDirEntry( "name", nOfs, nNameSize, &rBuffer[0], pFakeEntry );
nOfs += nNameSize;
if( nPrepSize )
{
if( nPrepSize != pMacFont->GetFontTable( "prep", &rBuffer[nOfs]))
return false;
FakeDirEntry( "prep", nOfs, nPrepSize, &rBuffer[0], pFakeEntry );
nOfs += nPrepSize;
}
DBG_ASSERT( (nOfs==nTotalSize), "AquaSalGraphics::CreateFontSubset (nOfs!=nTotalSize)");
return true;
}
void AquaSalGraphics::GetGlyphWidths( const PhysicalFontFace* pFontData, bool bVertical,
Int32Vector& rGlyphWidths, Ucs2UIntMap& rUnicodeEnc )
{
rGlyphWidths.clear();
rUnicodeEnc.clear();
if( !pFontData->CanSubset() )
{
if( pFontData->CanEmbed() )
{
// get individual character widths
OSL_FAIL("not implemented for non-subsettable fonts!\n");
}
return;
}
ByteVector aBuffer;
if( !GetRawFontData( pFontData, aBuffer, nullptr ) )
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 = nullptr;
int nRC = ::OpenTTFontBuffer( static_cast<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( const_cast<TTSimpleGlyphMetrics *>(pGlyphMetrics) );
}
FontCharMapPtr pMap = mpFontData->GetFontCharMap();
DBG_ASSERT( pMap && pMap->GetCharCount(), "no charmap" );
// 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 = nullptr;
}
::CloseTTFont( pSftFont );
}
const Ucs2SIntMap* AquaSalGraphics::GetFontEncodingVector( const PhysicalFontFace*,
const Ucs2OStrMap** /*ppNonEncoded*/,
std::set<sal_Unicode> const** )
{
return nullptr;
}
const void* AquaSalGraphics::GetEmbedFontData( const PhysicalFontFace*,
const sal_Ucs* /*pUnicodes*/,
sal_Int32* /*pWidths*/,
size_t /*nLen*/,
FontSubsetInfo&,
long* /*pDataLen*/ )
{
return nullptr;
}
void AquaSalGraphics::FreeEmbedFontData( const void* pData, long /*nDataLen*/ )
{
// TODO: implementing this only makes sense when the implementation of
// AquaSalGraphics::GetEmbedFontData() returns non-NULL
(void)pData;
DBG_ASSERT( (pData!=nullptr), "AquaSalGraphics::FreeEmbedFontData() is not implemented\n");
}
bool AquaSalGraphics::IsFlipped() const
{
#ifdef MACOSX
return mbWindow;
#else
return false;
#endif
}
void AquaSalGraphics::RefreshRect(float lX, float lY, float lWidth, float lHeight)
{
#ifdef MACOSX
if( ! mbWindow ) // view only on Window graphics
return;
if( mpFrame )
{
// update a little more around the designated rectangle
// this helps with antialiased rendering
// Rounding down x and width can accumulate a rounding error of up to 2
// The decrementing of x, the rounding error and the antialiasing border
// require that the width and the height need to be increased by four
const Rectangle aVclRect(Point(static_cast<long int>(lX-1),
static_cast<long int>(lY-1) ),
Size( static_cast<long int>(lWidth+4),
static_cast<long int>(lHeight+4) ) );
mpFrame->maInvalidRect.Union( aVclRect );
}
#else
(void) lX;
(void) lY;
(void) lWidth;
(void) lHeight;
return;
#endif
}
#ifdef IOS
bool AquaSalGraphics::CheckContext()
{
if (mbForeignContext)
{
SAL_INFO("vcl.ios", "CheckContext() this=" << this << ", mbForeignContext, return true");
return true;
}
SAL_INFO( "vcl.ios", "CheckContext() this=" << this << ", not foreign, return false");
return false;
}
CGContextRef AquaSalGraphics::GetContext()
{
if ( !mrContext )
CheckContext();
return mrContext;
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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