Move windows font databases into QtGui

Requires adapting a few config checks since cmake currently
does not detect directwrite.

Task-number: QTBUG-83255
Task-number: QTBUG-83931
Change-Id: I521f1924f701260b41dccbcecf87b19f08df5ccc
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

1 files changed, 175 insertions, 0 deletions

diff --git a/src/gui/text/windows/qwindowsfontengine_p.h b/src/gui/text/windows/qwindowsfontengine_p.h
new file mode 100644
index 0000000000..8a676affcd
--- /dev/null
+++ b/src/gui/text/windows/qwindowsfontengine_p.h
@@ -0,0 +1,175 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWINDOWSFONTENGINE_H
+#define QWINDOWSFONTENGINE_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/private/qfontengine_p.h>
+
+#include <QtGui/QImage>
+#include <QtCore/QSharedPointer>
+#include <QtCore/QMetaType>
+
+#include <QtCore/qt_windows.h>
+
+QT_BEGIN_NAMESPACE
+
+class QWindowsNativeImage;
+class QWindowsFontEngineData;
+
+class QWindowsFontEngine : public QFontEngine
+{
+    Q_DISABLE_COPY_MOVE(QWindowsFontEngine)
+public:
+    QWindowsFontEngine(const QString &name, LOGFONT lf,
+                       const QSharedPointer<QWindowsFontEngineData> &fontEngineData);
+
+    ~QWindowsFontEngine() override;
+    void initFontInfo(const QFontDef &request,
+                      int dpi);
+
+    QFixed lineThickness() const override;
+    Properties properties() const override;
+    void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics) override;
+    FaceId faceId() const override;
+    bool getSfntTableData(uint tag, uchar *buffer, uint *length) const override;
+    int synthesized() const override;
+    QFixed emSquareSize() const override;
+
+    glyph_t glyphIndex(uint ucs4) const override;
+    bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, ShaperFlags flags) const override;
+    void recalcAdvances(QGlyphLayout *glyphs, ShaperFlags) const override;
+
+    void addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags) override;
+    void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs,
+                         QPainterPath *path, QTextItem::RenderFlags flags) override;
+
+    HGDIOBJ selectDesignFont() const;
+
+    glyph_metrics_t boundingBox(const QGlyphLayout &glyphs) override;
+    glyph_metrics_t boundingBox(glyph_t g) override { return boundingBox(g, QTransform()); }
+    glyph_metrics_t boundingBox(glyph_t g, const QTransform &t) override;
+
+
+    QFixed xHeight() const override;
+    QFixed capHeight() const override;
+    QFixed averageCharWidth() const override;
+    qreal maxCharWidth() const override;
+    qreal minLeftBearing() const override;
+    qreal minRightBearing() const override;
+
+    QImage alphaMapForGlyph(glyph_t t) override { return alphaMapForGlyph(t, QTransform()); }
+    QImage alphaMapForGlyph(glyph_t, const QTransform &xform) override;
+    QImage alphaRGBMapForGlyph(glyph_t t, QFixed subPixelPosition, const QTransform &xform) override;
+    glyph_metrics_t alphaMapBoundingBox(glyph_t glyph, QFixed, const QTransform &matrix, GlyphFormat) override;
+
+    QFontEngine *cloneWithSize(qreal pixelSize) const override;
+    Qt::HANDLE handle() const override;
+    bool supportsTransformation(const QTransform &transform) const override;
+
+#ifndef Q_CC_MINGW
+    void getGlyphBearings(glyph_t glyph, qreal *leftBearing = 0, qreal *rightBearing = 0) override;
+#endif
+
+    bool hasUnreliableGlyphOutline() const override;
+
+    int getGlyphIndexes(const QChar *ch, int numChars, QGlyphLayout *glyphs) const;
+    void getCMap();
+
+    bool getOutlineMetrics(glyph_t glyph, const QTransform &t, glyph_metrics_t *metrics) const;
+
+    const QSharedPointer<QWindowsFontEngineData> &fontEngineData() const { return m_fontEngineData; }
+
+    void setUniqueFamilyName(const QString &newName) { uniqueFamilyName = newName; }
+
+protected:
+    void initializeHeightMetrics() const override;
+
+private:
+    QWindowsNativeImage *drawGDIGlyph(HFONT font, glyph_t, int margin, const QTransform &xform,
+                                      QImage::Format mask_format);
+    bool hasCFFTable() const;
+    bool hasCMapTable() const;
+
+    const QSharedPointer<QWindowsFontEngineData> m_fontEngineData;
+
+    const QString     _name;
+    QString     uniqueFamilyName;
+    HFONT       hfont = 0;
+    const LOGFONT     m_logfont;
+    uint        ttf        : 1;
+    uint        hasOutline : 1;
+    uint        hasUnreliableOutline : 1;
+    uint        cffTable   : 1;
+    TEXTMETRIC  tm;
+    const unsigned char *cmap = nullptr;
+    int cmapSize = 0;
+    QByteArray cmapTable;
+    mutable qreal lbearing = SHRT_MIN;
+    mutable qreal rbearing = SHRT_MIN;
+    QFixed designToDevice;
+    int unitsPerEm = 0;
+    QFixed x_height = -1;
+    FaceId _faceId;
+
+    mutable int synthesized_flags = -1;
+    mutable QFixed lineWidth = -1;
+    mutable unsigned char *widthCache = nullptr;
+    mutable uint widthCacheSize = 0;
+    mutable QFixed *designAdvances = nullptr;
+    mutable int designAdvancesSize = 0;
+};
+
+QT_END_NAMESPACE
+
+Q_DECLARE_METATYPE(HFONT)
+Q_DECLARE_METATYPE(LOGFONT)
+
+#endif // QWINDOWSFONTENGINE_H