mapScaleInstance.h

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/*****************************************************************************
 * Copyright (c) 2019 MAK Technologies, Inc.
 * All rights reserved.
 *****************************************************************************/

#pragma once

#include <vrfGuiCore/vrfGuiCore.h>
#include <vrfGuiCore/mapInformationOverlayInstance.h>

#include <matrix/vlVector.h>

#include <osg/Quat>

namespace makVrv
{

   class DtDe;
   class DtLineSegment;
   class DtTextProxy;
}

namespace makVrf
{
   class DT_DLL_VRFGUICORE DtMapScaleInstance : public DtMapInformationOverlayInstance
   {
   public:

      DtMapScaleInstance(makVrv::DtDe& de);

      virtual ~DtMapScaleInstance();

      virtual void getSize(int& width, int& height);

   protected:

      virtual void channelUpdated();

      virtual void destroyVisuals();
      virtual void createVisuals();

      virtual void reloadTextFonts();

      virtual double findDistanceFromResolution(double viewResolution, makVrv::DtUnicode& label) const;

      virtual void slot_onUnitChanged(int attribute, int from, int old);

      virtual double roundToMeter(double metersDistance, makVrv::DtUnicode& label, bool changeToKm = true) const;

      virtual double roundToFeet(double metersDistance, makVrv::DtUnicode& label) const;

      virtual double roundToNauticalMiles(double metersDistance, makVrv::DtUnicode& label) const;

      virtual void setGroup(float);

   private:

      DtMapScaleInstance( const DtMapScaleInstance& orig );

      DtMapScaleInstance&operator=( const DtMapScaleInstance& rhs );

   protected:

      bool myFirstFrame;
      double myPreviousViewResolution;

      makVrv::DtLineSegment* myHorizontalLine;
      makVrv::DtLineSegment* myLeftEdge;
      makVrv::DtLineSegment* myRightEdge;
      makVrv::DtTextProxy* myScaleText;

      int myLabelTextWidth;
   };

   class DT_DLL_VRFGUICORE DtMapScaleInstanceCreator : public DtMapInformationOverlayInstanceCreator
   {
   public:
      DtMapScaleInstanceCreator(makVrv::DtDe& de);
      virtual ~DtMapScaleInstanceCreator();

      static DtMapScaleInstanceCreator& instance(makVrv::DtDe& de);
      static void registerInstance(makVrv::DtDe&, DtMapScaleInstanceCreator*);

      virtual DtMapInformationOverlayInstance* create();
   };
}