Move Windows font DB and engines to QtFontDatabaseSupport

This allows creating or extending QPA plugins to provide access to QFont
and related types.

It concerns both GDI and DirectWrite engines, as well as the regular and
the freetype based font databases. The qt.qpa.fonts logging category has
been moved together into the QWindowsFontDatabase related files to avoid
depending on the qwindowscontext.h header file. Finally, QwindowsNativeImage
is following pending a future refactor with similar code in qpixmap_win.cpp
and the Windows XP style.

Change-Id: Iddff2f3d715e3ab7695e6c2052b7596a01fd6fa8
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 0 insertions, 187 deletions

diff --git a/src/plugins/platforms/windows/qwindowsfontengine.h b/src/plugins/platforms/windows/qwindowsfontengine.h
deleted file mode 100644
index b63d8fd282..0000000000
--- a/src/plugins/platforms/windows/qwindowsfontengine.h
+++ /dev/null
@@ -1,187 +0,0 @@
-/****************************************************************************
-**
-** 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
-{
-    friend class QWindowsMultiFontEngine;
-
-public:
-    QWindowsFontEngine(const QString &name, LOGFONT lf,
-                       const QSharedPointer<QWindowsFontEngineData> &fontEngineData);
-
-    ~QWindowsFontEngine();
-    void initFontInfo(const QFontDef &request,
-                      int dpi);
-
-    QFixed lineThickness() const Q_DECL_OVERRIDE;
-    Properties properties() const Q_DECL_OVERRIDE;
-    void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics) Q_DECL_OVERRIDE;
-    FaceId faceId() const Q_DECL_OVERRIDE;
-    bool getSfntTableData(uint tag, uchar *buffer, uint *length) const Q_DECL_OVERRIDE;
-    int synthesized() const Q_DECL_OVERRIDE;
-    QFixed emSquareSize() const Q_DECL_OVERRIDE;
-
-    glyph_t glyphIndex(uint ucs4) const Q_DECL_OVERRIDE;
-    bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, ShaperFlags flags) const Q_DECL_OVERRIDE;
-    void recalcAdvances(QGlyphLayout *glyphs, ShaperFlags) const Q_DECL_OVERRIDE;
-
-    void addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags) Q_DECL_OVERRIDE;
-    virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs,
-                         QPainterPath *path, QTextItem::RenderFlags flags) Q_DECL_OVERRIDE;
-
-    HGDIOBJ selectDesignFont() const;
-
-    glyph_metrics_t boundingBox(const QGlyphLayout &glyphs) Q_DECL_OVERRIDE;
-    glyph_metrics_t boundingBox(glyph_t g) Q_DECL_OVERRIDE { return boundingBox(g, QTransform()); }
-    glyph_metrics_t boundingBox(glyph_t g, const QTransform &t) Q_DECL_OVERRIDE;
-
-
-    QFixed ascent() const Q_DECL_OVERRIDE;
-    QFixed descent() const Q_DECL_OVERRIDE;
-    QFixed leading() const Q_DECL_OVERRIDE;
-    QFixed xHeight() const Q_DECL_OVERRIDE;
-    QFixed capHeight() const Q_DECL_OVERRIDE;
-    QFixed averageCharWidth() const Q_DECL_OVERRIDE;
-    qreal maxCharWidth() const Q_DECL_OVERRIDE;
-    qreal minLeftBearing() const Q_DECL_OVERRIDE;
-    qreal minRightBearing() const Q_DECL_OVERRIDE;
-
-    QImage alphaMapForGlyph(glyph_t t) Q_DECL_OVERRIDE { return alphaMapForGlyph(t, QTransform()); }
-    QImage alphaMapForGlyph(glyph_t, const QTransform &xform) Q_DECL_OVERRIDE;
-    QImage alphaRGBMapForGlyph(glyph_t t, QFixed subPixelPosition, const QTransform &xform) Q_DECL_OVERRIDE;
-    glyph_metrics_t alphaMapBoundingBox(glyph_t glyph, QFixed, const QTransform &matrix, GlyphFormat) Q_DECL_OVERRIDE;
-
-    QFontEngine *cloneWithSize(qreal pixelSize) const Q_DECL_OVERRIDE;
-    Qt::HANDLE handle() const Q_DECL_OVERRIDE;
-    bool supportsTransformation(const QTransform &transform) const Q_DECL_OVERRIDE;
-
-#ifndef Q_CC_MINGW
-    void getGlyphBearings(glyph_t glyph, qreal *leftBearing = 0, qreal *rightBearing = 0) Q_DECL_OVERRIDE;
-#endif
-
-    bool hasUnreliableGlyphOutline() const Q_DECL_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; }
-
-private:
-    QWindowsNativeImage *drawGDIGlyph(HFONT font, glyph_t, int margin, const QTransform &xform,
-                                      QImage::Format mask_format);
-    bool hasCFFTable() const;
-    bool hasCMapTable() const;
-    bool hasGlyfTable() const;
-    bool hasEbdtTable() const;
-
-    const QSharedPointer<QWindowsFontEngineData> m_fontEngineData;
-
-    const QString     _name;
-    QString     uniqueFamilyName;
-    HFONT       hfont;
-    const LOGFONT     m_logfont;
-    uint        ttf        : 1;
-    uint        hasOutline : 1;
-    uint        hasUnreliableOutline : 1;
-    uint        cffTable   : 1;
-    TEXTMETRIC  tm;
-    const unsigned char *cmap;
-    int cmapSize;
-    QByteArray cmapTable;
-    mutable qreal lbearing;
-    mutable qreal rbearing;
-    QFixed designToDevice;
-    int unitsPerEm;
-    QFixed x_height;
-    FaceId _faceId;
-
-    mutable int synthesized_flags;
-    mutable QFixed lineWidth;
-    mutable unsigned char *widthCache;
-    mutable uint widthCacheSize;
-    mutable QFixed *designAdvances;
-    mutable int designAdvancesSize;
-};
-
-class QWindowsMultiFontEngine : public QFontEngineMulti
-{
-public:
-    explicit QWindowsMultiFontEngine(QFontEngine *fe, int script);
-
-    QFontEngine *loadEngine(int at) Q_DECL_OVERRIDE;
-};
-
-QT_END_NAMESPACE
-
-Q_DECLARE_METATYPE(HFONT)
-Q_DECLARE_METATYPE(LOGFONT)
-
-#endif // QWINDOWSFONTENGINE_H
-