CWE-ou-minkata/Sources/Plasma/PubUtilLib/plPipeline/plTextFont.h

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

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*==LICENSE==*/
///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  plTextFont Class Header                                                  //
//  Generic 3D text font handler                                             //
//  Cyan, Inc.                                                               //
//                                                                           //
//// Version History //////////////////////////////////////////////////////////
//                                                                           //
//  2.19.2001 mcn - Created.                                                 //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#ifndef _plTextFont_h
#define _plTextFont_h

#include "hsTemplates.h"
#include "hsGeometry3.h"

//// plTextFont Class Definition //////////////////////////////////////////////

class plPipeline;

class plTextFont
{
    protected:

        struct plDXCharInfo
        {
            uint16_t      fW, fH;
            hsPoint3    fUVs[ 2 ];
        };

        struct plFontVertex
        {
            hsPoint3    fPoint;
            uint32_t      fColor;
            hsPoint3    fUV;

            plFontVertex& operator=(const int zero)
            {
                fPoint.Set(0,0,0);
                fColor = 0;
                fUV.Set(0,0,0);

                return *this;
            }
        };

        uint32_t  fMaxNumIndices;
        uint32_t  fTextureWidth, fTextureHeight;

        char    fFace[ 128 ];
        uint16_t  fSize;
        hsBool  fInitialized;
        uint16_t  fFontHeight;
        
        plPipeline  *fPipe;

        plTextFont      *fNext;
        plTextFont      **fPrevPtr;

        plDXCharInfo    fCharInfo[ 128 ];


        virtual void    IInitObjects( void );
        virtual void    ICreateTexture( uint16_t *data ) = 0;
        virtual void    IInitStateBlocks( void ) = 0;
        virtual void    IDrawPrimitive( uint32_t count, plFontVertex *array ) = 0;
        virtual void    IDrawLines( uint32_t count, plFontVertex *array ) = 0;
        
        uint16_t  *IInitFontTexture( void );

        void    IUnlink( void )
        {
            hsAssert( fPrevPtr, "Font not in list" );
            if( fNext )
                fNext->fPrevPtr = fPrevPtr;
            *fPrevPtr = fNext;

            fNext = nil;
            fPrevPtr = nil;
        }

    public:

        plTextFont( plPipeline *pipe );
        virtual ~plTextFont();

        void    Create( char *face, uint16_t size );
        void    DrawString( const char *string, int x, int y, uint32_t hexColor, uint8_t style, uint32_t rightEdge = 0 );
        void    DrawRect( int left, int top, int right, int bottom, uint32_t hexColor );
        void    Draw3DBorder( int left, int top, int right, int bottom, uint32_t hexColor1, uint32_t hexColor2 );
        uint32_t  CalcStringWidth( const char *string );
        uint32_t  GetFontSize( void ) { return fSize; }

        uint16_t  GetFontHeight() { return fFontHeight; }

        virtual void    DestroyObjects( void ) = 0;
        virtual void    SaveStates( void ) = 0;
        virtual void    RestoreStates( void ) = 0;
        virtual void    FlushDraws( void ) = 0;

        void    Link( plTextFont **back )
        {
            fNext = *back;
            if( *back )
                (*back)->fPrevPtr = &fNext;
            fPrevPtr = back;
            *back = this;
        }

};


#endif // _plTextFont_h