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  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
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  ** 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
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  ** GNU Lesser General Public License Usage
  ** Alternatively, this file may be used under the terms of the GNU Lesser
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  ****************************************************************************/
  
  #ifndef QSTATICTEXT_P_H
  #define QSTATICTEXT_P_H
  
  //
  //  W A R N I N G
  //  -------------
  //
  // This file is not part of the Qt API.  It exists for the convenience
  // of internal files.  This header file may change from version to version
  // without notice, or even be removed.
  //
  // We mean it.
  //
  
  #include <QtGui/private/qtguiglobal_p.h>
  #include "qstatictext.h"
  
  #include <private/qtextureglyphcache_p.h>
  #include <QtGui/qcolor.h>
  
  QT_BEGIN_NAMESPACE
  
  // ### Qt 6: Unexport again, if QOpenGLStaticTextUserData (the one from QtOpenGL) is gone by then
  class Q_GUI_EXPORT QStaticTextUserData
  {
  public:
      enum Type {
          NoUserData,
          OpenGLUserData
      };
  
      QStaticTextUserData(Type t) : ref(0), type(t) {}
      virtual ~QStaticTextUserData();
  
      QAtomicInt ref;
      Type type;
  };
  
  class Q_GUI_EXPORT QStaticTextItem
  {
  public:
      QStaticTextItem() : useBackendOptimizations(false),
                          userDataNeedsUpdate(0), usesRawFont(0),
                          m_fontEngine(nullptr), m_userData(nullptr) {}
  
      void setUserData(QStaticTextUserData *newUserData)
      {
          m_userData = newUserData;
      }
      QStaticTextUserData *userData() const { return m_userData.data(); }
  
      void setFontEngine(QFontEngine *fe)
      {
          m_fontEngine = fe;
      }
  
      QFontEngine *fontEngine() const { return m_fontEngine.data(); }
  
      union {
          QFixedPoint *glyphPositions;             // 8 bytes per glyph
          int positionOffset;
      };
      union {
          glyph_t *glyphs;                         // 4 bytes per glyph
          int glyphOffset;
      };
                                                   // =================
                                                   // 12 bytes per glyph
  
                                                   // 8 bytes for pointers
      int numGlyphs;                               // 4 bytes per item
      QFont font;                                  // 8 bytes per item
      QColor color;                                // 10 bytes per item
      char useBackendOptimizations : 1;            // 1 byte per item
      char userDataNeedsUpdate : 1;                //
      char usesRawFont : 1;                        //
  
  private: // private to avoid abuse
      QExplicitlySharedDataPointer<QFontEngine> m_fontEngine;       // 4 bytes per item
      QExplicitlySharedDataPointer<QStaticTextUserData> m_userData; // 8 bytes per item
                                                                    // ================
                                                                    // 43 bytes per item
  };
  Q_DECLARE_TYPEINFO(QStaticTextItem, Q_MOVABLE_TYPE);
  
  class QStaticText;
  class Q_AUTOTEST_EXPORT QStaticTextPrivate
  {
  public:
      QStaticTextPrivate();
      QStaticTextPrivate(const QStaticTextPrivate &other);
      ~QStaticTextPrivate();
  
      void init();
      void paintText(const QPointF &pos, QPainter *p, const QColor &pen);
  
      void invalidate()
      {
          needsRelayout = true;
      }
  
      QAtomicInt ref;                      // 4 bytes per text
  
      QString text;                        // 4 bytes per text
      QFont font;                          // 8 bytes per text
      qreal textWidth;                     // 8 bytes per text
      QSizeF actualSize;                   // 16 bytes per text
      QPointF position;                    // 16 bytes per text
  
      QTransform matrix;                   // 80 bytes per text
      QStaticTextItem *items;              // 4 bytes per text
      int itemCount;                       // 4 bytes per text
  
      glyph_t *glyphPool;                  // 4 bytes per text
      QFixedPoint *positionPool;           // 4 bytes per text
  
      QTextOption textOption;              // 28 bytes per text
  
      unsigned char needsRelayout            : 1; // 1 byte per text
      unsigned char useBackendOptimizations  : 1;
      unsigned char textFormat               : 2;
      unsigned char untransformedCoordinates : 1;
                                           // ================
                                           // 191 bytes per text
  
      static QStaticTextPrivate *get(const QStaticText *q);
  };
  
  QT_END_NAMESPACE
  
  #endif // QSTATICTEXT_P_H
  