office-gobmx/vcl/quartz/salgdi.cxx
Stephan Bergmann f029f8dfb0 Various -Werror,-Wvla-cxx-extension
...as enabled by default now in recent Clang 18 trunk

Change-Id: I59f9bbdf2ce064f170df01e6d7ec2341884ab5e3
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/158563
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
2023-10-27 22:12:07 +02:00

495 lines
15 KiB
C++

/* -*- 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 <memory>
#include <sal/log.hxx>
#include <config_folders.h>
#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/process.h>
#include <rtl/bootstrap.h>
#include <rtl/strbuf.hxx>
#include <rtl/ustrbuf.hxx>
#include <tools/long.hxx>
#include <comphelper/lok.hxx>
#include <vcl/metric.hxx>
#include <vcl/fontcharmap.hxx>
#include <vcl/svapp.hxx>
#include <vcl/sysdata.hxx>
#include <fontsubset.hxx>
#include <impfont.hxx>
#include <font/FontMetricData.hxx>
#include <font/fontsubstitution.hxx>
#include <font/PhysicalFontCollection.hxx>
#ifdef MACOSX
#include <osx/salframe.h>
#endif
#include <quartz/utils.h>
#ifdef IOS
#include <ios/iosinst.hxx>
#endif
#include <sallayout.hxx>
#include <config_features.h>
#include <vcl/skia/SkiaHelper.hxx>
#if HAVE_FEATURE_SKIA
#include <skia/osx/gdiimpl.hxx>
#endif
#include <quartz/SystemFontList.hxx>
#include <quartz/CoreTextFont.hxx>
#include <quartz/CoreTextFontFace.hxx>
using namespace vcl;
namespace {
class CoreTextGlyphFallbackSubstititution
: public vcl::font::GlyphFallbackFontSubstitution
{
public:
bool FindFontSubstitute(vcl::font::FontSelectPattern&, LogicalFontInstance* pLogicalFont, OUString&) const override;
};
bool FontHasCharacter(CTFontRef pFont, const OUString& rString, sal_Int32 nIndex, sal_Int32 nLen)
{
auto const glyphs = std::make_unique<CGGlyph[]>(nLen);
return CTFontGetGlyphsForCharacters(pFont, reinterpret_cast<const UniChar*>(rString.getStr() + nIndex), glyphs.get(), nLen);
}
}
bool CoreTextGlyphFallbackSubstititution::FindFontSubstitute(vcl::font::FontSelectPattern& rPattern, LogicalFontInstance* pLogicalFont,
OUString& rMissingChars) const
{
bool bFound = false;
CoreTextFont* pFont = static_cast<CoreTextFont*>(pLogicalFont);
CFStringRef pStr = CreateCFString(rMissingChars);
if (pStr)
{
CTFontRef pFallback = CTFontCreateForString(pFont->GetCTFont(), pStr, CFRangeMake(0, CFStringGetLength(pStr)));
if (pFallback)
{
bFound = true;
// tdf#148470 remove the resolved chars from rMissing to flag which ones are still missing
// for an attempt with another font
OUStringBuffer aStillMissingChars;
for (sal_Int32 nStrIndex = 0; nStrIndex < rMissingChars.getLength();)
{
sal_Int32 nOldStrIndex = nStrIndex;
rMissingChars.iterateCodePoints(&nStrIndex);
sal_Int32 nCharLength = nStrIndex - nOldStrIndex;
if (!FontHasCharacter(pFallback, rMissingChars, nOldStrIndex, nCharLength))
aStillMissingChars.append(rMissingChars.getStr() + nOldStrIndex, nCharLength);
}
rMissingChars = aStillMissingChars.toString();
CTFontDescriptorRef pDesc = CTFontCopyFontDescriptor(pFallback);
FontAttributes rAttr = DevFontFromCTFontDescriptor(pDesc, nullptr);
rPattern.maSearchName = rAttr.GetFamilyName();
CFRelease(pFallback);
CFRelease(pDesc);
}
CFRelease(pStr);
}
return bFound;
}
AquaSalGraphics::AquaSalGraphics(bool bPrinter)
: mnRealDPIX( 0 )
, mnRealDPIY( 0 )
{
SAL_INFO( "vcl.quartz", "AquaSalGraphics::AquaSalGraphics() this=" << this );
#if HAVE_FEATURE_SKIA
// tdf#146842 Do not use Skia for printing
// Skia does not work with a native print graphics contexts. I am not sure
// why but from what I can see, the Skia implementation drawing to a bitmap
// buffer. However, in an NSPrintOperation, the print view's backing buffer
// is CGPDFContext so even if this bug could be solved by blitting the
// Skia bitmap buffer, the printed PDF would not have selectable text so
// always disable Skia for print graphics contexts.
if(!bPrinter && SkiaHelper::isVCLSkiaEnabled())
mpBackend.reset(new AquaSkiaSalGraphicsImpl(*this, maShared));
#else
(void)bPrinter;
if(false)
;
#endif
else
mpBackend.reset(new AquaGraphicsBackend(maShared));
for (int i = 0; i < MAX_FALLBACK; ++i)
mpFont[i] = nullptr;
if (comphelper::LibreOfficeKit::isActive())
initWidgetDrawBackends(true);
}
AquaSalGraphics::~AquaSalGraphics()
{
SAL_INFO( "vcl.quartz", "AquaSalGraphics::~AquaSalGraphics() this=" << this );
maShared.unsetClipPath();
ReleaseFonts();
maShared.mpXorEmulation.reset();
#ifdef IOS
if (maShared.mbForeignContext)
return;
#endif
if (maShared.maLayer.isSet())
{
CGLayerRelease(maShared.maLayer.get());
}
else if (maShared.maContextHolder.isSet()
#ifdef MACOSX
&& maShared.mbWindow
#endif
)
{
// destroy backbuffer bitmap context that we created ourself
CGContextRelease(maShared.maContextHolder.get());
maShared.maContextHolder.set(nullptr);
}
}
SalGraphicsImpl* AquaSalGraphics::GetImpl() const
{
return mpBackend->GetImpl();
}
void AquaSalGraphics::SetTextColor( Color nColor )
{
maShared.maTextColor = nColor;
}
void AquaSalGraphics::GetFontMetric(FontMetricDataRef& rxFontMetric, int nFallbackLevel)
{
if (nFallbackLevel < MAX_FALLBACK && mpFont[nFallbackLevel])
{
mpFont[nFallbackLevel]->GetFontMetric(rxFontMetric);
}
}
static bool AddTempDevFont(const OUString& rFontFileURL)
{
OUString aUSystemPath;
OSL_VERIFY( !osl::FileBase::getSystemPathFromFileURL( rFontFileURL, aUSystemPath ) );
OString aCFileName = OUStringToOString( aUSystemPath, 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);
}
CFRelease(rFontPath);
CFRelease(rFontURL);
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 );
// internal font resources, required for normal operation, like OpenSymbol
AddTempFontDir( aBrandStr + "/" LIBO_SHARE_RESOURCE_FOLDER "/common/fonts/" );
AddTempFontDir( aBrandStr + "/" LIBO_SHARE_FOLDER "/fonts/truetype/" );
}
void AquaSalGraphics::GetDevFontList(vcl::font::PhysicalFontCollection* pFontCollection)
{
SAL_WARN_IF( !pFontCollection, "vcl", "AquaSalGraphics::GetDevFontList(NULL) !");
AddLocalTempFontDirs();
SalData* pSalData = GetSalData();
pSalData->mpFontList = GetCoretextFontList();
// Copy all PhysicalFontFace objects contained in the SystemFontList
pSalData->mpFontList->AnnounceFonts( *pFontCollection );
static CoreTextGlyphFallbackSubstititution aSubstFallback;
pFontCollection->SetFallbackHook(&aSubstFallback);
}
void AquaSalGraphics::ClearDevFontCache()
{
SalData* pSalData = GetSalData();
pSalData->mpFontList.reset();
}
bool AquaSalGraphics::AddTempDevFont(vcl::font::PhysicalFontCollection*,
const OUString& rFontFileURL, const OUString& /*rFontName*/)
{
return ::AddTempDevFont(rFontFileURL);
}
void AquaSalGraphics::DrawTextLayout(const GenericSalLayout& rLayout)
{
mpBackend->drawTextLayout(rLayout);
}
void AquaGraphicsBackend::drawTextLayout(const GenericSalLayout& rLayout)
{
#ifdef IOS
if (!mrShared.checkContext())
{
SAL_WARN("vcl.quartz", "AquaSalGraphics::DrawTextLayout() without context");
return;
}
#endif
const CoreTextFont& rFont = *static_cast<const CoreTextFont*>(&rLayout.GetFont());
const vcl::font::FontSelectPattern& rFontSelect = rFont.GetFontSelectPattern();
if (rFontSelect.mnHeight == 0)
{
SAL_WARN("vcl.quartz", "AquaSalGraphics::DrawTextLayout(): rFontSelect.mnHeight is zero!?");
return;
}
CTFontRef pCTFont = rFont.GetCTFont();
CGAffineTransform aRotMatrix = CGAffineTransformMakeRotation(-rFont.mfFontRotation);
basegfx::B2DPoint aPos;
const GlyphItem* pGlyph;
std::vector<CGGlyph> aGlyphIds;
std::vector<CGPoint> aGlyphPos;
std::vector<bool> aGlyphOrientation;
int nStart = 0;
while (rLayout.GetNextGlyph(&pGlyph, aPos, nStart))
{
CGPoint aGCPos = CGPointMake(aPos.getX(), -aPos.getY());
// Whether the glyph should be upright in vertical mode or not
bool bUprightGlyph = false;
if (rFont.mfFontRotation)
{
if (pGlyph->IsVertical())
bUprightGlyph = true;
else
// Transform the position of rotated glyphs.
aGCPos = CGPointApplyAffineTransform(aGCPos, aRotMatrix);
}
aGlyphIds.push_back(pGlyph->glyphId());
aGlyphPos.push_back(aGCPos);
aGlyphOrientation.push_back(bUprightGlyph);
}
if (aGlyphIds.empty())
return;
assert(aGlyphIds.size() == aGlyphPos.size());
#if 0
std::cerr << "aGlyphIds:[";
for (unsigned i = 0; i < aGlyphIds.size(); i++)
{
if (i > 0)
std::cerr << ",";
std::cerr << aGlyphIds[i];
}
std::cerr << "]\n";
std::cerr << "aGlyphPos:[";
for (unsigned i = 0; i < aGlyphPos.size(); i++)
{
if (i > 0)
std::cerr << ",";
std::cerr << aGlyphPos[i];
}
std::cerr << "]\n";
#endif
mrShared.maContextHolder.saveState();
RGBAColor textColor( mrShared.maTextColor );
// The view is vertically flipped (no idea why), flip it back.
CGContextScaleCTM(mrShared.maContextHolder.get(), 1.0, -1.0);
CGContextSetShouldAntialias(mrShared.maContextHolder.get(), !mrShared.mbNonAntialiasedText);
CGContextSetFillColor(mrShared.maContextHolder.get(), textColor.AsArray());
if (rFont.NeedsArtificialBold())
{
float fSize = rFontSelect.mnHeight / 23.0f;
CGContextSetStrokeColor(mrShared.maContextHolder.get(), textColor.AsArray());
CGContextSetLineWidth(mrShared.maContextHolder.get(), fSize);
CGContextSetTextDrawingMode(mrShared.maContextHolder.get(), kCGTextFillStroke);
}
if (rLayout.GetSubpixelPositioning())
{
CGContextSetAllowsFontSubpixelQuantization(mrShared.maContextHolder.get(), false);
CGContextSetShouldSubpixelQuantizeFonts(mrShared.maContextHolder.get(), false);
CGContextSetAllowsFontSubpixelPositioning(mrShared.maContextHolder.get(), true);
CGContextSetShouldSubpixelPositionFonts(mrShared.maContextHolder.get(), true);
}
auto aIt = aGlyphOrientation.cbegin();
while (aIt != aGlyphOrientation.cend())
{
bool bUprightGlyph = *aIt;
// Find the boundary of the run of glyphs with the same rotation, to be
// drawn together.
auto aNext = std::find(aIt, aGlyphOrientation.cend(), !bUprightGlyph);
size_t nStartIndex = std::distance(aGlyphOrientation.cbegin(), aIt);
size_t nLen = std::distance(aIt, aNext);
mrShared.maContextHolder.saveState();
if (rFont.mfFontRotation && !bUprightGlyph)
{
CGContextRotateCTM(mrShared.maContextHolder.get(), rFont.mfFontRotation);
}
CTFontDrawGlyphs(pCTFont, &aGlyphIds[nStartIndex], &aGlyphPos[nStartIndex], nLen, mrShared.maContextHolder.get());
mrShared.maContextHolder.restoreState();
aIt = aNext;
}
mrShared.maContextHolder.restoreState();
}
void AquaSalGraphics::SetFont(LogicalFontInstance* pReqFont, int nFallbackLevel)
{
// release the font
for (int i = nFallbackLevel; i < MAX_FALLBACK; ++i)
{
if (!mpFont[i])
break;
mpFont[i].clear();
}
if (!pReqFont)
return;
// update the font
mpFont[nFallbackLevel] = static_cast<CoreTextFont*>(pReqFont);
}
std::unique_ptr<GenericSalLayout> AquaSalGraphics::GetTextLayout(int nFallbackLevel)
{
assert(mpFont[nFallbackLevel]);
if (!mpFont[nFallbackLevel])
return nullptr;
return std::make_unique<GenericSalLayout>(*mpFont[nFallbackLevel]);
}
FontCharMapRef AquaSalGraphics::GetFontCharMap() const
{
if (!mpFont[0])
{
return FontCharMapRef( new FontCharMap() );
}
return mpFont[0]->GetFontFace()->GetFontCharMap();
}
bool AquaSalGraphics::GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const
{
if (!mpFont[0])
return false;
return mpFont[0]->GetFontFace()->GetFontCapabilities(rFontCapabilities);
}
void AquaSalGraphics::Flush()
{
mpBackend->Flush();
}
void AquaSalGraphics::Flush( const tools::Rectangle& rRect )
{
mpBackend->Flush( rRect );
}
void AquaSalGraphics::WindowBackingPropertiesChanged()
{
mpBackend->WindowBackingPropertiesChanged();
}
#ifdef IOS
bool AquaSharedAttributes::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;
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */