CWE-ou-minkata/Sources/Plasma/PubUtilLib/plGImage/plDynSurfaceWriter.h

/*==LICENSE==*

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*==LICENSE==*/
///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  plDynSurfaceWriter Class Header                                          //
//  Abstract class wrapping around Windows GDI functionality for writing to  //
//  a generic RGBA surface. Allows us to create one writer per DTMap or a    //
//  single shared writer to conserve OS resources on 98/ME.                  //
//                                                                           //
//  Cyan, Inc.                                                               //
//                                                                           //
//// Version History //////////////////////////////////////////////////////////
//                                                                           //
//  10.28.2002 mcn - Created.                                                //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#ifndef _plDynSurfaceWriter_h
#define _plDynSurfaceWriter_h

#include "hsColorRGBA.h"
#include "hsWindows.h" // FIXME: windows :(

struct hsMatrix44;

class plDynamicTextMap;

//// Class Definition /////////////////////////////////////////////////////////

class plDynSurfaceWriter
{
    public:

        //// Public Flags ////
        enum Justify
        {
            kLeftJustify = 0,
            kCenter,
            kRightJustify
        };

        enum Flags
        {
            kSupportAlpha   = 0x00000001,
            
            kFontBold       = 0x00000002,
            kFontItalic     = 0x00000004,
            kFontShadowed   = 0x00000008,
            kFontMask       = 0x0000000e,

            kDiscardOnFlush = 0x00000010
        };

        //// Public Data /////
        
        
        //// Public Members ////


        plDynSurfaceWriter();
        plDynSurfaceWriter( plDynamicTextMap *target, uint32_t flags = 0 );
        virtual ~plDynSurfaceWriter();


        /// Operations to perform on the text block
        
        void    ClearToColor( hsColorRGBA &color );
        void    SetFont( const char *face, uint16_t size, uint8_t fontFlags = 0, bool antiAliasRGB = true );
        void    SetTextColor( hsColorRGBA &color, bool blockRGB = false );
        void    SetJustify( Justify j );

        void    DrawString( uint16_t x, uint16_t y, const char *text );
        void    DrawClippedString( int16_t x, int16_t y, const char *text, uint16_t width, uint16_t height );
        void    DrawClippedString( int16_t x, int16_t y, const char *text, uint16_t clipX, uint16_t clipY, uint16_t width, uint16_t height );
        void    DrawWrappedString( uint16_t x, uint16_t y, const char *text, uint16_t width, uint16_t height );
        uint16_t  CalcStringWidth( const char *text, uint16_t *height = nil );
        void    CalcWrappedStringSize( const char *text, uint16_t *width, uint16_t *height );
        void    FillRect( uint16_t x, uint16_t y, uint16_t width, uint16_t height, hsColorRGBA &color );
        void    FrameRect( uint16_t x, uint16_t y, uint16_t width, uint16_t height, hsColorRGBA &color );

//      void    DrawImage( uint16_t x, uint16_t y, plMipmap *image, bool respectAlpha = false );
//      void    DrawClippedImage( uint16_t x, uint16_t y, plMipmap *image, uint16_t srcClipX, uint16_t srcClipY, 
//                              uint16_t srcClipWidth, uint16_t srcClipHeight, bool respectAlpha = false );

        // Copy the raw data from the given buffer.
//      void    SetBitsFromBuffer( uint32_t *clearBuffer, uint16_t width, uint16_t height )

        /// Target switching operations

        // Flushes all ops to the target.
        void    FlushToTarget( void );

        // Switches targets. Will flush to old target before switching. Also, if kDiscard isn't specified, will copy contents of new target to working surface
        void    SwitchTarget( plDynamicTextMap *target );       // Will force a flush

        // Clears and resets everything. Does NOT flush.
        void    Reset( void );

        bool    IsValid( void ) const;

        static bool     CanHandleLotsOfThem( void );

    protected:

        //// Protected Members ////

        void        IInit( void );
        void        IEnsureSurfaceUpdated( void );
        void        IRefreshOSJustify( void );
        void        ISetTextColor( hsColorRGBA &color, bool blockRGB );

        void        ISetFont( const char *face, uint16_t size, uint8_t fontFlags = 0, bool antiAliasRGB = true );

        plDynamicTextMap    *fCurrTarget;
        uint32_t              fFlags;
        Justify             fJustify;
        bool                fFlushed;

        char        *fFontFace;
        uint16_t      fFontSize;
        uint8_t       fFontFlags;
        bool        fFontAntiAliasRGB;
        bool        fFontBlockedRGB;

        static bool         fForceSharedSurfaces;
        static bool         fOSDetected;
        static bool         fOSCanShareSurfaces;

#if HS_BUILD_FOR_WIN32
        class plWinSurface
        {
            protected:
                void        *fBits;

                virtual uint8_t   IBitsPerPixel( void ) const = 0;

            public:
                HDC         fDC;
                HBITMAP     fBitmap;
                HFONT       fFont;
                COLORREF    fTextColor;
                int         fSaveNum;

                uint16_t      fWidth, fHeight;

                char        *fFontFace;
                uint16_t      fFontSize;
                uint8_t       fFontFlags;
                bool        fFontAntiAliasRGB, fFontBlockedRGB;

                plWinSurface();
                ~plWinSurface();

                void    Allocate( uint16_t w, uint16_t h );
                void    Release( void );

                bool    WillFit( uint16_t w, uint16_t h );
                bool    FontMatches( const char *face, uint16_t size, uint8_t flags, bool aaRGB );
                void    SetFont( const char *face, uint16_t size, uint8_t flags, bool aaRGB );
        };

        class plWinRGBSurface : public plWinSurface
        {
                virtual uint8_t   IBitsPerPixel( void ) const { return 32; }
            public:
                uint32_t  *GetBits( void ) const { return (uint32_t *)fBits; }
        };

        class plWinAlphaSurface : public plWinSurface
        {
                virtual uint8_t   IBitsPerPixel( void ) const { return 8; }
            public:
                uint8_t   *GetBits( void ) const { return (uint8_t *)fBits; }
        };

        plWinRGBSurface     fRGBSurface;
        plWinAlphaSurface   fAlphaSurface;
#endif
};


#endif // _plDynSurfaceWriter_h