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-rw-r--r--vcl/qt5/QtGraphics_Text.cxx378
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diff --git a/vcl/qt5/QtGraphics_Text.cxx b/vcl/qt5/QtGraphics_Text.cxx
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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 <QtGraphics.hxx>
+#include <QtFontFace.hxx>
+#include <QtFont.hxx>
+#include <QtPainter.hxx>
+
+#include <fontsubset.hxx>
+#include <vcl/fontcharmap.hxx>
+#include <unx/geninst.h>
+#include <unx/fontmanager.hxx>
+#include <unx/glyphcache.hxx>
+#include <unx/genpspgraphics.h>
+
+#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(ImplFontMetricDataRef& 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_QT5_NO_FONTCONFIG"));
+
+ if (pPFC->Count())
+ return;
+
+ FreetypeManager& rFontManager = FreetypeManager::get();
+ psp::PrintFontManager& rMgr = psp::PrintFontManager::get();
+ ::std::vector<psp::fontID> aList;
+ psp::FastPrintFontInfo aInfo;
+
+ rMgr.getFontList(aList);
+ for (auto const& elem : aList)
+ {
+ if (!rMgr.getFontFastInfo(elem, aInfo))
+ continue;
+
+ // normalize face number to the FreetypeManager
+ int nFaceNum = rMgr.getFontFaceNumber(aInfo.m_nID);
+ int nVariantNum = rMgr.getFontFaceVariation(aInfo.m_nID);
+
+ // inform FreetypeManager about this font provided by the PsPrint subsystem
+ FontAttributes aDFA = GenPspGraphics::Info2FontAttributes(aInfo);
+ aDFA.IncreaseQualityBy(4096);
+ const OString& rFileName = rMgr.getFontFileSysPath(aInfo.m_nID);
+ rFontManager.AddFontFile(rFileName, nFaceNum, nVariantNum, aInfo.m_nID, aDFA);
+ }
+
+ 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 QtTrueTypeFont : public vcl::AbstractTrueTypeFont
+{
+ const QRawFont& m_aRawFont;
+ mutable QByteArray m_aFontTable[vcl::NUM_TAGS];
+
+public:
+ QtTrueTypeFont(const QtFontFace& aFontFace, const QRawFont& aRawFont);
+
+ bool hasTable(sal_uInt32 ord) const override;
+ const sal_uInt8* table(sal_uInt32 ord, sal_uInt32& size) const override;
+};
+
+QtTrueTypeFont::QtTrueTypeFont(const QtFontFace& aFontFace, const QRawFont& aRawFont)
+ : vcl::AbstractTrueTypeFont(nullptr, aFontFace.GetFontCharMap())
+ , m_aRawFont(aRawFont)
+{
+ indexGlyphData();
+}
+
+const char* vclFontTableAsChar(sal_uInt32 ord)
+{
+ switch (ord)
+ {
+ case vcl::O_maxp:
+ return "maxp";
+ case vcl::O_glyf:
+ return "glyf";
+ case vcl::O_head:
+ return "head";
+ case vcl::O_loca:
+ return "loca";
+ case vcl::O_name:
+ return "name";
+ case vcl::O_hhea:
+ return "hhea";
+ case vcl::O_hmtx:
+ return "hmtx";
+ case vcl::O_cmap:
+ return "cmap";
+ case vcl::O_vhea:
+ return "vhea";
+ case vcl::O_vmtx:
+ return "vmtx";
+ case vcl::O_OS2:
+ return "OS/2";
+ case vcl::O_post:
+ return "post";
+ case vcl::O_cvt:
+ return "cvt ";
+ case vcl::O_prep:
+ return "prep";
+ case vcl::O_fpgm:
+ return "fpgm";
+ case vcl::O_gsub:
+ return "gsub";
+ case vcl::O_CFF:
+ return "CFF ";
+ default:
+ return nullptr;
+ }
+}
+
+bool QtTrueTypeFont::hasTable(sal_uInt32 ord) const
+{
+ const char* table_char = vclFontTableAsChar(ord);
+ if (!table_char)
+ return false;
+ if (m_aFontTable[ord].isEmpty())
+ m_aFontTable[ord] = m_aRawFont.fontTable(table_char);
+ return !m_aFontTable[ord].isEmpty();
+}
+
+const sal_uInt8* QtTrueTypeFont::table(sal_uInt32 ord, sal_uInt32& size) const
+{
+ const char* table_char = vclFontTableAsChar(ord);
+ if (!table_char)
+ return nullptr;
+ if (m_aFontTable[ord].isEmpty())
+ m_aFontTable[ord] = m_aRawFont.fontTable(table_char);
+ size = m_aFontTable[ord].size();
+ return reinterpret_cast<const sal_uInt8*>(m_aFontTable[ord].data());
+}
+}
+
+bool QtGraphics::CreateFontSubset(const OUString& rToFile,
+ const vcl::font::PhysicalFontFace* pFontFace,
+ const sal_GlyphId* pGlyphIds, const sal_uInt8* pEncoding,
+ sal_Int32* pGlyphWidths, int nGlyphCount, FontSubsetInfo& rInfo)
+{
+ OUString aSysPath;
+ if (osl_File_E_None != osl_getSystemPathFromFileURL(rToFile.pData, &aSysPath.pData))
+ return false;
+
+ // get the raw-bytes from the font to be subset
+ const QtFontFace* pQtFontFace = static_cast<const QtFontFace*>(pFontFace);
+ const QFont aFont = pQtFontFace->CreateFont();
+ const QRawFont aRawFont(QRawFont::fromFont(aFont));
+ const OString aToFile(OUStringToOString(aSysPath, osl_getThreadTextEncoding()));
+
+ // handle CFF-subsetting
+ QByteArray aCFFtable = aRawFont.fontTable("CFF ");
+ if (!aCFFtable.isEmpty())
+ return SalGraphics::CreateCFFfontSubset(
+ reinterpret_cast<const sal_uInt8*>(aCFFtable.data()), aCFFtable.size(), aToFile,
+ pGlyphIds, pEncoding, pGlyphWidths, nGlyphCount, rInfo);
+
+ // fill details about the subsetted font
+ rInfo.m_nFontType = FontType::SFNT_TTF;
+ rInfo.m_aPSName = toOUString(aRawFont.familyName());
+ rInfo.m_nCapHeight = aRawFont.capHeight();
+ rInfo.m_nAscent = aRawFont.ascent();
+ rInfo.m_nDescent = aRawFont.descent();
+
+ QtTrueTypeFont aTTF(*pQtFontFace, aRawFont);
+ int nXmin, nYmin, nXmax, nYmax;
+ sal_uInt16 nMacStyleFlags;
+ if (GetTTGlobalFontHeadInfo(&aTTF, nXmin, nYmin, nXmax, nYmax, nMacStyleFlags))
+ rInfo.m_aFontBBox = tools::Rectangle(Point(nXmin, nYmin), Point(nXmax, nYmax));
+
+ return SalGraphics::CreateTTFfontSubset(aTTF, aToFile, false /* use FontSelectPattern? */,
+ pGlyphIds, pEncoding, pGlyphWidths, nGlyphCount);
+}
+
+const void* QtGraphics::GetEmbedFontData(const vcl::font::PhysicalFontFace*,
+ tools::Long* /*pDataLen*/)
+{
+ return nullptr;
+}
+
+void QtGraphics::FreeEmbedFontData(const void* /*pData*/, tools::Long /*nDataLen*/) {}
+
+void QtGraphics::GetGlyphWidths(const vcl::font::PhysicalFontFace* pFontFace, bool bVertical,
+ std::vector<sal_Int32>& rWidths, Ucs2UIntMap& rUnicodeEnc)
+{
+ const QtFontFace* pQtFontFace = static_cast<const QtFontFace*>(pFontFace);
+ const QRawFont aRawFont(QRawFont::fromFont(pQtFontFace->CreateFont()));
+ QtTrueTypeFont aTTF(*pQtFontFace, aRawFont);
+ SalGraphics::GetGlyphWidths(aTTF, *pFontFace, bVertical, rWidths, rUnicodeEnc);
+}
+
+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();
+ bool bAllowedHintStyle
+ = !bWithoutHintingInTextDirection
+ || (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, getTextRenderModeForResolutionIndependentLayoutEnabled()));
+
+ 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);
+
+ DevicePoint 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: */