Add Windows to the Lighthouse.

Add an initial Lighthouse plugin for the Windows operating system.

Change-Id: I6934562266e1aa0ac270bf6107df05a9e56ef82c
Reviewed-on: http://codereview.qt.nokia.com/3107
Reviewed-by: Oliver Wolff <oliver.wolff@nokia.com>
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>

1 files changed, 186 insertions, 0 deletions

diff --git a/src/plugins/platforms/windows/qwindowsfontengine.h b/src/plugins/platforms/windows/qwindowsfontengine.h
new file mode 100644
index 0000000000..bed5ecffbd
--- /dev/null
+++ b/src/plugins/platforms/windows/qwindowsfontengine.h
@@ -0,0 +1,186 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (info@qt.nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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.
+//
+
+// Enable access to HB_Face in harfbuzz includes included by qfontengine_p.h.
+#define QT_BUILD_GUI_LIB
+#include <QtGui/private/qfontengine_p.h>
+#undef QT_BUILD_GUI_LIB
+
+#include <QtGui/QImage>
+#include <QtCore/QSharedPointer>
+
+#include "qtwindows_additional.h"
+
+QT_BEGIN_NAMESPACE
+
+class QWindowsNativeImage;
+class QWindowsFontEngineData;
+
+class QWindowsFontEngine : public QFontEngine
+{
+    Q_DISABLE_COPY(QWindowsFontEngine)
+public:
+    QWindowsFontEngine(const QString &name, HFONT, bool, LOGFONT,
+                   QSharedPointer<QWindowsFontEngineData> fontEngineData);
+
+    ~QWindowsFontEngine();
+    void initFontInfo(const QFontDef &request,
+                      HDC fontHdc,  int dpi);
+
+    virtual QFixed lineThickness() const;
+    virtual Properties properties() const;
+    virtual void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics);
+    virtual FaceId faceId() const;
+    virtual bool getSfntTableData(uint tag, uchar *buffer, uint *length) const;
+    virtual int synthesized() const;
+    virtual QFixed emSquareSize() const;
+
+    virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
+    virtual void recalcAdvances(QGlyphLayout *glyphs, QTextEngine::ShaperFlags) const;
+
+    virtual void addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags);
+    virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs,
+                         QPainterPath *path, QTextItem::RenderFlags flags);
+
+    HGDIOBJ selectDesignFont() const;
+
+    virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
+    virtual glyph_metrics_t boundingBox(glyph_t g) { return boundingBox(g, QTransform()); }
+    virtual glyph_metrics_t boundingBox(glyph_t g, const QTransform &t);
+
+
+    virtual QFixed ascent() const;
+    virtual QFixed descent() const;
+    virtual QFixed leading() const;
+    virtual QFixed xHeight() const;
+    virtual QFixed averageCharWidth() const;
+    virtual qreal maxCharWidth() const;
+    virtual qreal minLeftBearing() const;
+    virtual qreal minRightBearing() const;
+
+    virtual const char *name() const;
+
+    bool canRender(const QChar *string, int len);
+
+    Type type() const;
+
+    virtual QImage alphaMapForGlyph(glyph_t t) { return alphaMapForGlyph(t, QTransform()); }
+    virtual QImage alphaMapForGlyph(glyph_t, const QTransform &xform);
+    virtual QImage alphaRGBMapForGlyph(glyph_t t, QFixed subPixelPosition, int margin, const QTransform &xform);
+
+    virtual QFontEngine *cloneWithSize(qreal pixelSize) const;
+
+#ifndef Q_CC_MINGW
+    virtual void getGlyphBearings(glyph_t glyph, qreal *leftBearing = 0, qreal *rightBearing = 0);
+#endif
+
+    int getGlyphIndexes(const QChar *ch, int numChars, QGlyphLayout *glyphs, bool mirrored) const;
+    void getCMap();
+
+    bool getOutlineMetrics(glyph_t glyph, const QTransform &t, glyph_metrics_t *metrics) const;
+
+    static QFontEngine *createEngine(int script, const QFontDef &request,
+                                     HDC fontHdc, int dpi, bool rawMode,
+                                     const QStringList &family_list,
+                                     const QSharedPointer<QWindowsFontEngineData> &data);
+
+    QSharedPointer<QWindowsFontEngineData> fontEngineData() const { return m_fontEngineData; }
+    LOGFONT logfont() const { return m_logfont; }
+
+private:
+    QWindowsNativeImage *drawGDIGlyph(HFONT font, glyph_t, int margin, const QTransform &xform,
+                                      QImage::Format mask_format);
+
+    const QSharedPointer<QWindowsFontEngineData> m_fontEngineData;
+
+    const QString     _name;
+    QString     uniqueFamilyName;
+    const HFONT       hfont;
+    const LOGFONT     m_logfont;
+    uint        stockFont  : 1;
+    uint        ttf        : 1;
+    uint        hasOutline : 1;
+    TEXTMETRIC  tm;
+    int         lw;
+    const unsigned char *cmap;
+    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:
+    QWindowsMultiFontEngine(QFontEngine *first, const QStringList &fallbacks);
+    virtual ~QWindowsMultiFontEngine();
+    void loadEngine(int at);
+
+    QStringList fallbacks;
+};
+
+QT_END_NAMESPACE
+
+#endif // QWINDOWSFONTENGINE_H