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/*
* $Xorg: TextSinkP.h,v 1.4 2001/02/09 02:03:46 xorgcvs Exp $
*/


/***********************************************************

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documentation for any purpose is hereby granted without fee, provided that
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in this Software without prior written authorization from The Open Group.


Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its 
documentation for any purpose and without fee is hereby granted, 
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in 
supporting documentation, and that the name of Digital not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.  

DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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******************************************************************/
/* $XFree86: xc/lib/Xaw/TextSinkP.h,v 1.11 2001/01/17 19:42:35 dawes Exp $ */

#ifndef _XawTextSinkP_h
#define _XawTextSinkP_h

/*
 * TextSink Object Private Data
 */
#include <X11/Xaw/TextSink.h>
#include <X11/Xaw/TextP.h>	/* This sink works with the Text widget */
#include <X11/Xaw/TextSrcP.h>	/* This sink works with the Text Source */
#include <X11/Xmu/Xmu.h>

#ifndef OLDXAW
/* font/fontset defined? */
#define XAW_TPROP_FONT		(1<<0)
#define XAW_TPROP_FONTSET	(1<<1)

/* extra attributes */
#define XAW_TPROP_FOREGROUND	(1<<2)
#define XAW_TPROP_BACKGROUND	(1<<3)
#define XAW_TPROP_FPIXMAP	(1<<4)
#define XAW_TPROP_BPIXMAP	(1<<5)
#define XAW_TPROP_UNDERLINE	(1<<6)
#define XAW_TPROP_OVERSTRIKE	(1<<7)
#define XAW_TPROP_SUBSCRIPT	(1<<8)
#define XAW_TPROP_SUPERSCRIPT	(1<<9)

/* xlfd attributes */
#define XAW_TPROP_FOUNDRY	(1<<0)
#define XAW_TPROP_FAMILY	(1<<1)
#define XAW_TPROP_WEIGHT	(1<<2)
#define XAW_TPROP_SLANT		(1<<3)
#define XAW_TPROP_SETWIDTH	(1<<4)
#define XAW_TPROP_ADDSTYLE	(1<<5)
#define XAW_TPROP_PIXELSIZE	(1<<6)
#define XAW_TPROP_POINTSIZE	(1<<7)
#define XAW_TPROP_RESX		(1<<8)
#define XAW_TPROP_RESY		(1<<9)
#define XAW_TPROP_SPACING	(1<<10)
#define XAW_TPROP_AVGWIDTH	(1<<11)
#define XAW_TPROP_REGISTRY	(1<<12)
#define XAW_TPROP_ENCODING	(1<<13)
struct _XawTextProperty {	/* to be extended/modified */
    XrmQuark identifier, code;
    unsigned long mask;
    XFontStruct *font;
    XFontSet fontset;
    Pixel foreground, background;
    Pixmap foreground_pixmap, background_pixmap;
    XrmQuark xlfd;

    unsigned long xlfd_mask;
    XrmQuark foundry, family, weight, slant, setwidth, addstyle, pixel_size,
	     point_size, res_x, res_y, spacing, avgwidth, registry, encoding;

    short underline_position, underline_thickness;
};

struct _XawTextPropertyList {
    XrmQuark identifier;
    Screen *screen;
    Colormap colormap;
    int depth;
    XawTextProperty **properties;
    Cardinal num_properties;
    XawTextPropertyList *next;
};

typedef struct _XawTextPaintStruct XawTextPaintStruct;
struct _XawTextPaintStruct {
    XawTextPaintStruct *next;
    int x, y, width;
    char *text;			/* formatted text */
    Cardinal length;		/* length of text */
    XawTextProperty *property;
    int max_ascent, max_descent;
    XmuArea *backtabs;
    Boolean highlight;
};

typedef struct {
    XmuArea *clip, *hightabs;			/* clip list */
    XawTextPaintStruct *paint, *bearings;	/* drawing information */
} XawTextPaintList;

typedef struct {
    XtPointer next_extension;
    XrmQuark record_type;
    long version;
    Cardinal record_size;
    Bool (*BeginPaint)(Widget);
    void (*PreparePaint)(Widget, int, int,
			 XawTextPosition, XawTextPosition, Bool);
    void (*DoPaint)(Widget);
    Bool (*EndPaint)(Widget);
} TextSinkExtRec, *TextSinkExt;
#endif

typedef void (*_XawSinkDisplayTextProc)
     (Widget, int, int, XawTextPosition, XawTextPosition, Bool);

typedef void (*_XawSinkInsertCursorProc)
     (Widget, int, int, XawTextInsertState);

typedef void (*_XawSinkClearToBackgroundProc)
     (Widget, int, int, unsigned int, unsigned int);

typedef void (*_XawSinkFindPositionProc)
     (Widget, XawTextPosition, int, int, Bool, XawTextPosition*, int*, int*);

typedef void (*_XawSinkFindDistanceProc)
     (Widget, XawTextPosition, int, XawTextPosition, int*,
      XawTextPosition*, int*);

typedef void (*_XawSinkResolveProc)
     (Widget, XawTextPosition, int, int, XawTextPosition*);

typedef int  (*_XawSinkMaxLinesProc)
     (Widget, unsigned int);

typedef int  (*_XawSinkMaxHeightProc)
     (Widget, int);

typedef void (*_XawSinkSetTabsProc)
     (Widget, int, short*);

typedef void (*_XawSinkGetCursorBoundsProc)
     (Widget, XRectangle*);

typedef struct _TextSinkClassPart {
    _XawSinkDisplayTextProc DisplayText;
    _XawSinkInsertCursorProc InsertCursor;
    _XawSinkClearToBackgroundProc ClearToBackground;
    _XawSinkFindPositionProc FindPosition;
    _XawSinkFindDistanceProc FindDistance;
    _XawSinkResolveProc Resolve;
    _XawSinkMaxLinesProc MaxLines;
    _XawSinkMaxHeightProc MaxHeight;
    _XawSinkSetTabsProc	SetTabs;
    _XawSinkGetCursorBoundsProc GetCursorBounds;
#ifndef OLDXAW
    TextSinkExt extension;
#endif
} TextSinkClassPart;

/* Full class record */
typedef struct _TextSinkClassRec {
    ObjectClassPart     object_class;
    TextSinkClassPart	text_sink_class;
} TextSinkClassRec;

extern TextSinkClassRec textSinkClassRec;

/* New fields for the TextSink object */
typedef struct {
    /* resources */
    Pixel foreground;		/* Foreground color */
    Pixel background;		/* Background color */

    /* private */
    Position *tabs;		/* The tab stops as pixel values */
    short *char_tabs;		/* The tabs stops as character values */
    int tab_count;		/* number of items in tabs */

#ifndef OLDXAW
    /* more resources */
    Pixel cursor_color;
    XawTextPropertyList *properties;
    XawTextPaintList *paint;
    XtPointer pad[2];	/* for future use and keep binary compatability */
#endif
} TextSinkPart;

/* Full instance record */
typedef struct _TextSinkRec {
    ObjectPart	 object;
    TextSinkPart text_sink;
} TextSinkRec;

/* Semi private routines */
#ifndef OLDXAW
XawTextPropertyList *XawTextSinkConvertPropertyList
(
 String			 name,
 String			 spec,
 Screen			*screen,
 Colormap		 Colormap,
 int			 depth
 );

XawTextProperty *XawTextSinkGetProperty
(
 Widget			 w,
 XrmQuark		 property
 );

XawTextProperty *XawTextSinkCopyProperty
(
 Widget			w,
 XrmQuark		property
 );

XawTextProperty *XawTextSinkAddProperty
(
 Widget			 w,
 XawTextProperty	*property
 );

XawTextProperty *XawTextSinkCombineProperty
(
 Widget			 w,
 XawTextProperty	*result_in_out,
 XawTextProperty	*property,
 Bool			 override
 );

Bool XawTextSinkBeginPaint
(
 Widget			w
 );

void XawTextSinkPreparePaint
(
 Widget			w,
 int			y,
 int			line,
 XawTextPosition	from,
 XawTextPosition	to,
 Bool			highlight
);

void XawTextSinkDoPaint
(
 Widget			w
 );

Bool XawTextSinkEndPaint
(
 Widget			w
 );
#endif

#define XtInheritDisplayText	   ((_XawSinkDisplayTextProc)_XtInherit)
#define XtInheritInsertCursor	   ((_XawSinkInsertCursorProc)_XtInherit)
#define XtInheritClearToBackground ((_XawSinkClearToBackgroundProc)_XtInherit)
#define XtInheritFindPosition	   ((_XawSinkFindPositionProc)_XtInherit)
#define XtInheritFindDistance	   ((_XawSinkFindDistanceProc)_XtInherit)
#define XtInheritResolve	   ((_XawSinkResolveProc)_XtInherit)
#define XtInheritMaxLines	   ((_XawSinkMaxLinesProc)_XtInherit)
#define XtInheritMaxHeight	   ((_XawSinkMaxHeightProc)_XtInherit)
#define XtInheritSetTabs	   ((_XawSinkSetTabsProc)_XtInherit)
#define XtInheritGetCursorBounds   ((_XawSinkGetCursorBoundsProc)_XtInherit)

#endif /* _XawTextSinkP_h */

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