/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project .
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* 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 <QtGraphics.hxx>
#include <QtFontFace.hxx>
#include <QtFont.hxx>
#include <QtPainter.hxx>
#include <vcl/fontcharmap.hxx>
#include <unx/geninst.h>
#include <unx/fontmanager.hxx>
#include <unx/glyphcache.hxx>
#include <sallayout.hxx>
#include <font/PhysicalFontCollection.hxx>
#include <QtGui/QGlyphRun>
#include <QtGui/QFontDatabase>
#include <QtGui/QRawFont>
#include <QtCore/QStringList>
void QtGraphics::SetTextColor(Color nColor) { m_aTextColor = nColor; }
void QtGraphics::SetFont(LogicalFontInstance* pReqFont, int nFallbackLevel)
{
// release the text styles
for (int i = nFallbackLevel; i < MAX_FALLBACK; ++i)
{
if (!m_pTextStyle[i])
break ;
m_pTextStyle[i].clear();
}
if (!pReqFont)
return ;
m_pTextStyle[nFallbackLevel] = static_cast <QtFont*>(pReqFont);
}
void QtGraphics::GetFontMetric(FontMetricDataRef& rFMD, int nFallbackLevel)
{
QRawFont aRawFont(QRawFont::fromFont(*m_pTextStyle[nFallbackLevel]));
QtFontFace::fillAttributesFromQFont(*m_pTextStyle[nFallbackLevel], *rFMD);
rFMD->ImplCalcLineSpacing(m_pTextStyle[nFallbackLevel].get());
rFMD->ImplInitBaselines(m_pTextStyle[nFallbackLevel].get());
rFMD->SetSlant(0 );
rFMD->SetWidth(aRawFont.averageCharWidth());
rFMD->SetMinKashida(m_pTextStyle[nFallbackLevel]->GetKashidaWidth());
}
FontCharMapRef QtGraphics::GetFontCharMap() const
{
if (!m_pTextStyle[0 ])
return FontCharMapRef(new FontCharMap());
return m_pTextStyle[0 ]->GetFontFace()->GetFontCharMap();
}
bool QtGraphics::GetFontCapabilities(vcl::FontCapabilities& rFontCapabilities) const
{
if (!m_pTextStyle[0 ])
return false ;
return m_pTextStyle[0 ]->GetFontFace()->GetFontCapabilities(rFontCapabilities);
}
void QtGraphics::GetDevFontList(vcl::font::PhysicalFontCollection* pPFC)
{
static const bool bUseFontconfig = (nullptr == getenv("SAL_VCL_QT_NO_FONTCONFIG" ));
if (pPFC->Count())
return ;
FreetypeManager& rFontManager = FreetypeManager::get();
psp::PrintFontManager& rMgr = psp::PrintFontManager::get();
::std::vector<psp::fontID> aList;
rMgr.getFontList(aList);
for (auto const & nFontId : aList)
{
auto const * pFont = rMgr.getFont(nFontId);
if (!pFont)
continue ;
// normalize face number to the FreetypeManager
int nFaceNum = rMgr.getFontFaceNumber(nFontId);
int nVariantNum = rMgr.getFontFaceVariation(nFontId);
// inform FreetypeManager about this font provided by the PsPrint subsystem
FontAttributes aFA = pFont->m_aFontAttributes;
aFA.IncreaseQualityBy(4096 );
const OString aFileName = rMgr.getFontFileSysPath(nFontId);
rFontManager.AddFontFile(aFileName, nFaceNum, nVariantNum, nFontId, aFA);
}
if (bUseFontconfig)
SalGenericInstance::RegisterFontSubstitutors(pPFC);
#if QT_VERSION >= QT_VERSION_CHECK(6 , 0 , 0 )
for (auto & family : QFontDatabase::families())
for (auto & style : QFontDatabase::styles(family))
pPFC->Add(QtFontFace::fromQFontDatabase(family, style));
#else
QFontDatabase aFDB;
for (auto & family : aFDB.families())
for (auto & style : aFDB.styles(family))
pPFC->Add(QtFontFace::fromQFontDatabase(family, style));
#endif
}
void QtGraphics::ClearDevFontCache() {}
bool QtGraphics::AddTempDevFont(vcl::font::PhysicalFontCollection*, const OUString& /*rFileURL*/,
const OUString& /*rFontName*/)
{
return false ;
}
namespace
{
class QtCommonSalLayout : public GenericSalLayout
{
public :
QtCommonSalLayout(LogicalFontInstance& rLFI)
: GenericSalLayout(rLFI)
{
}
void SetOrientation(Degree10 nOrientation) { mnOrientation = nOrientation; }
};
}
std::unique_ptr<GenericSalLayout> QtGraphics::GetTextLayout(int nFallbackLevel)
{
assert(m_pTextStyle[nFallbackLevel]);
if (!m_pTextStyle[nFallbackLevel])
return nullptr;
return std::make_unique<QtCommonSalLayout>(*m_pTextStyle[nFallbackLevel]);
}
static QRawFont GetRawFont(const QFont& rFont, bool bWithoutHintingInTextDirection)
{
QFont::HintingPreference eHinting = rFont.hintingPreference();
static bool bAllowDefaultHinting = getenv("SAL_ALLOW_DEFAULT_HINTING" ) != nullptr;
bool bAllowedHintStyle
= !bWithoutHintingInTextDirection || bAllowDefaultHinting
|| (eHinting == QFont::PreferNoHinting || eHinting == QFont::PreferVerticalHinting);
if (bWithoutHintingInTextDirection && !bAllowedHintStyle)
{
QFont aFont(rFont);
aFont.setHintingPreference(QFont::PreferVerticalHinting);
return QRawFont::fromFont(aFont);
}
return QRawFont::fromFont(rFont);
}
void QtGraphics::DrawTextLayout(const GenericSalLayout& rLayout)
{
const QtFont* pFont = static_cast <const QtFont*>(&rLayout.GetFont());
assert(pFont);
QRawFont aRawFont(GetRawFont(*pFont, rLayout.GetSubpixelPositioning()));
QVector<quint32> glyphIndexes;
QVector<QPointF> positions;
// prevent glyph rotation inside the SalLayout
// probably better to add a parameter to GetNextGlyphs?
QtCommonSalLayout* pQtLayout
= static_cast <QtCommonSalLayout*>(const_cast <GenericSalLayout*>(&rLayout));
Degree10 nOrientation = rLayout.GetOrientation();
if (nOrientation)
pQtLayout->SetOrientation(0 _deg10);
basegfx::B2DPoint aPos;
const GlyphItem* pGlyph;
int nStart = 0 ;
while (rLayout.GetNextGlyph(&pGlyph, aPos, nStart))
{
glyphIndexes.push_back(pGlyph->glyphId());
positions.push_back(QPointF(aPos.getX(), aPos.getY()));
}
// seems to be common to try to layout an empty string...
if (positions.empty())
return ;
if (nOrientation)
pQtLayout->SetOrientation(nOrientation);
QGlyphRun aGlyphRun;
aGlyphRun.setPositions(positions);
aGlyphRun.setGlyphIndexes(glyphIndexes);
aGlyphRun.setRawFont(aRawFont);
QtPainter aPainter(*m_pBackend);
QColor aColor = toQColor(m_aTextColor);
aPainter.setPen(aColor);
if (nOrientation)
{
// make text position the center of the rotation
// then rotate and move back
QRect window = aPainter.window();
window.moveTo(-positions[0 ].x(), -positions[0 ].y());
aPainter.setWindow(window);
QTransform p;
p.rotate(-static_cast <qreal>(nOrientation.get()) / 10 .0 );
p.translate(-positions[0 ].x(), -positions[0 ].y());
aPainter.setTransform(p);
}
aPainter.drawGlyphRun(QPointF(), aGlyphRun);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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