Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 378 insertions, 0 deletions

diff --git a/vcl/qt5/QtGraphics_Text.cxx b/vcl/qt5/QtGraphics_Text.cxx
new file mode 100644
index 000000000..940578c5d
--- /dev/null
+++ b/vcl/qt5/QtGraphics_Text.cxx
@@ -0,0 +1,378 @@
+/* -*- 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: */