258 lines
7.4 KiB
C
258 lines
7.4 KiB
C
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/****************************************************************************
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Unit GdiPrim; Interface
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*****************************************************************************
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The Gdi module is called directly by the QuickDraw (QD) module in order
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to emit metafile primitives. It is responsible for accessing the current
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CGrafPort structure in order to access the individual attribute settings.
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It also supports the caching and redundant elimination of duplicate
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elements when writing to the metafile.
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Module Prefix: Gdi
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*****************************************************************************/
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/*--- states ---*/
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#define Changed 0
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#define Current 1
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/*--- state table offsets ---*/
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#define GdiPnPat 0x0001 /* fill patterns */
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#define GdiBkPat 0x0002
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#define GdiFillPat 0x0003
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#define GdiPnSize 0x0004 /* pen attribs */
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#define GdiPnMode 0x0005
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#define GdiFgColor 0x0006 /* foreground, background */
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#define GdiBkColor 0x0007
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#define GdiPnFgColor 0x000A
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#define GdiBkFgColor 0x000B
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#define GdiFillFgColor 0x000C
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#define GdiPnBkColor 0x000D
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#define GdiBkBkColor 0x000E
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#define GdiFillBkColor 0x000F
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#define GdiTxFont 0x0010 /* text attribs */
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#define GdiTxFace 0x0011
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#define GdiTxSize 0x0012
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#define GdiTxMode 0x0013
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#define GdiTxRatio 0x0014
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#define GdiChExtra 0x0015
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#define GdiSpExtra 0x0016
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#define GdiLineJustify 0x0017
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#define GdiNumAttrib 0x0018
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/*--- Action verbs ---*/
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typedef Integer GrafVerb;
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#define GdiFrame 0
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#define GdiPaint 1
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#define GdiErase 2
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#define GdiInvert 3
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#define GdiFill 4
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/*--- metafile comment ---*/
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#define PUBLIC 0xFFFFFFFF /* '....' public */
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#define POWERPOINT_OLD 0x5050FE54 /* 'PP.T' PowerPoint 2.0 */
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#define POWERPOINT 0x50504E54 /* 'PPNT' PowerPoint 3.0 */
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#define PRIVATE 0x512D3E47 /* 'Q->G' QD2GDI */
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#define SUPERPAINT 0x53504E54 /* 'SPNT' SuperPaint */
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#define PC_REGISTERED 0x8000 /* PowerPoint callback flag */
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#define QG_SIGNATURE "QuickDraw -> GDI"
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#define BEGIN_GROUP 0 /* public comments */
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#define END_GROUP 1
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#define CREATOR 4
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#define BEGIN_BANDING 6
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#define END_BANDING 7
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#define PP_VERSION 0x00 /* PowerPoint comments */
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#define PP_BFILEBLOCK 0x01
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#define PP_BEGINPICTURE 0x02
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#define PP_ENDPICTURE 0x03
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#define PP_DEVINFO 0x04
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#define PP_BEGINHYPEROBJ 0x05
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#define PP_ENDHYPEROBJ 0x06
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#define PP_BEGINFADE 0x07
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#define PP_ENDFADE 0x08
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#define PP_FONTNAME 0x11 /* GDI2QD round-trip */
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#define PP_HATCHPATTERN 0x12
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#define PP_BEGINCLIPREGION 0x40 /* clip regions from QD2GDI */
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#define PP_ENDCLIPREGION 0x41
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#define PP_BEGINTRANSPARENCY 0x42
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#define PP_ENDTRANSPARENCY 0x43
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#define PP_MASK 0x44
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#define PP_TRANSPARENTOBJ 0x45
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#define PP_MACPP2COLOR 0x80
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#define PP_WINGRAPH 0xAB
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typedef struct
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{
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DWord signature;
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Word function;
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DWord size;
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} Comment, far * CommentLPtr;
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/*--- PostScript data buffer (POSTSCRIPT_DATA Escape) ---*/
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typedef struct psbuf
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{
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Word length;
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char data[1];
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} PSBuf;
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/*--- Conversion preferences ---*/
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#define GdiPrefOmit 0
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#define GdiPrefAbort 2
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typedef struct
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{
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StringLPtr metafileName;
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Byte penPatternAction;
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Byte nonSquarePenAction;
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Byte penModeAction;
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Byte textModeAction;
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Byte nonRectRegionAction;
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Boolean optimizePP;
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Byte noRLE;
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} ConvPrefs, far * ConvPrefsLPtr;
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/*--- Conversion results ---*/
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typedef struct
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{
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HANDLE hmf; /* Global memory handle to the metafile */
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RECT bbox; /* Tightly bounding rectangle in metafile units */
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short inch; /* Length of an inch in metafile units */
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} PICTINFO, FAR * PictInfoLPtr;
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/*********************** Exported Function Definitions **********************/
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void GdiOffsetOrigin( Point delta );
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/* offset the current window origin and picture bounding box */
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void GdiLineTo( Point newPt );
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/* Emit line primitive with square endcaps */
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void GdiRectangle( GrafVerb verb, Rect rect );
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/* Emit rectangle primitive using action and dimensions parameters */
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void GdiRoundRect( GrafVerb verb, Rect rect, Point oval );
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/* Emit rounded rectangle primitive */
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void GdiOval( GrafVerb verb, Rect rect );
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/* Emit an oval primitive */
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void GdiArc( GrafVerb verb, Rect rect, Integer startAngle, Integer arcAngle );
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/* Emit an arc primitive */
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void GdiPolygon( GrafVerb verb, Handle poly );
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/* Emit polygon primitive */
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void GdiRegion( GrafVerb verb, Handle rgn );
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/* Emit region primitive */
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void GdiTextOut( StringLPtr string, Point location );
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/* draw the text at the location specified by location parameter. */
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void GdiStretchDIBits( PixMapLPtr pixMapLPtr, Handle pixDataHandle,
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Rect src, Rect dst, Word mode, Handle mask );
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/* Draw a Windows device-independant bitmap */
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void GdiSelectClipRegion( RgnHandle rgn );
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/* Create a clipping rectangle or region using handle passed */
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void GdiHatchPattern( Integer hatchIndex );
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/* Use the hatch pattern index passed down to perform all ensuing fill
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operations - 0-6 for a hatch value, -1 turns off the substitution */
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void GdiFontName( Byte fontFamily, Byte charSet, StringLPtr fontName );
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/* Set font characteristics based upno metafile comment from GDI2QD */
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void GdiShortComment( CommentLPtr cmt );
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/* Write public or private comment with no associated data */
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void GdiEscape( Integer function, Integer count, StringLPtr data);
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/* Write out a GDI Escape structure with no returned data */
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void GdiSetConversionPrefs( ConvPrefsLPtr convPrefs);
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/* Provide conversion preferences via global data block */
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void GdiOpenMetafile( void );
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/* Open metafile passed by GdiSetMetafileName() and perform any
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initialization of the graphics state */
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void GdiSetBoundingBox( Rect bbox, Integer resolution );
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/* Set the overall picture size and picture resoulution in dpi */
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void GdiCloseMetafile( void );
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/* Close the metafile handle and end picture generation */
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void GdiGetConversionResults( PictInfoLPtr pictInfoLPtr );
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/* return results of the conversion */
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void GdiMarkAsChanged( Integer attribCode );
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/* indicate that the attribute passed in has changed */
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#ifdef WIN32
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int WINAPI EnumFontFunc( CONST LOGFONT *logFontLPtr, CONST TEXTMETRIC *tmLPtr,
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DWORD fontType, LPARAM dataLPtr );
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#else
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int FAR PASCAL EnumFontFunc( LPLOGFONT logFontLPtr, LPTEXTMETRIC tmLPtr,
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short fontType, LPSTR dataLPtr );
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#endif
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/* Callback function used to determine if a given font is available */
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void GdiSamePrimitive( Boolean same );
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/* indicate whether next primitive is the same or new */
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void GdiEPSPreamble(Rect far *);
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/* output GDI EPS filter PostScript preamble */
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void GdiEPSTrailer( void );
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/* output GDI EPS filter PostScript trailer */
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void GdiEPSData(PSBuf far*);
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/* output EPS PostScript data as GDI POSTSCRIPT_DATA Escape */
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