DtFontInterface.h

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/******************************************************************************
** Copyright (c) 2023 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvCore/vrvCore.h>
#include <vrvCore/DtBoundingBox.h>

namespace makVrv
{
   class DtPen;
   class DtUnicode;

   class DT_DLL_VRVCORE DtFontInterface
   {
   public:

      enum TextAlignment
      {
         AlignLeft,
         AlignCenter,
         AlignRight,
         AlignJustify
      };

      DtFontInterface() = default;
      
      ~DtFontInterface();

      // Gets the line spacing for the font.
      virtual float lineHeight() const = 0;

      virtual DtBoundingBox calculateBoundingBox(const DtPen& pen,
         const DtUnicode& string, unsigned int pos = 0, int len = -1) = 0;

      virtual Dt2dPoint calculateGlyphSize(const DtPen& pen,
         const DtUnicode& string, unsigned int pos = 0, int len = -1) = 0;

      virtual bool isValid() const = 0;

   };
}