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      1 /***********************************************************
      2 
      3 Copyright 1987, 1988, 1994, 1998  The Open Group
      4 
      5 Permission to use, copy, modify, distribute, and sell this software and its
      6 documentation for any purpose is hereby granted without fee, provided that
      7 the above copyright notice appear in all copies and that both that
      8 copyright notice and this permission notice appear in supporting
      9 documentation.
     10 
     11 The above copyright notice and this permission notice shall be included in
     12 all copies or substantial portions of the Software.
     13 
     14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
     17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     20 
     21 Except as contained in this notice, the name of The Open Group shall not be
     22 used in advertising or otherwise to promote the sale, use or other dealings
     23 in this Software without prior written authorization from The Open Group.
     24 
     25 
     26 Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
     27 
     28                         All Rights Reserved
     29 
     30 Permission to use, copy, modify, and distribute this software and its
     31 documentation for any purpose and without fee is hereby granted,
     32 provided that the above copyright notice appear in all copies and that
     33 both that copyright notice and this permission notice appear in
     34 supporting documentation, and that the name of Digital not be
     35 used in advertising or publicity pertaining to distribution of the
     36 software without specific, written prior permission.
     37 
     38 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
     39 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
     40 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
     41 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
     42 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
     43 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
     44 SOFTWARE.
     45 
     46 ******************************************************************/
     47 
     48 #ifndef _XawTextSinkP_h
     49 #define _XawTextSinkP_h
     50 
     51 /*
     52  * TextSink Object Private Data
     53  */
     54 #include <X11/Xaw/TextSink.h>
     55 #include <X11/Xaw/TextP.h>	/* This sink works with the Text widget */
     56 #include <X11/Xaw/TextSrcP.h>	/* This sink works with the Text Source */
     57 #include <X11/Xmu/Xmu.h>
     58 
     59 #ifndef OLDXAW
     60 /* font/fontset defined? */
     61 #define XAW_TPROP_FONT		(1<<0)
     62 #define XAW_TPROP_FONTSET	(1<<1)
     63 
     64 /* extra attributes */
     65 #define XAW_TPROP_FOREGROUND	(1<<2)
     66 #define XAW_TPROP_BACKGROUND	(1<<3)
     67 #define XAW_TPROP_FPIXMAP	(1<<4)
     68 #define XAW_TPROP_BPIXMAP	(1<<5)
     69 #define XAW_TPROP_UNDERLINE	(1<<6)
     70 #define XAW_TPROP_OVERSTRIKE	(1<<7)
     71 #define XAW_TPROP_SUBSCRIPT	(1<<8)
     72 #define XAW_TPROP_SUPERSCRIPT	(1<<9)
     73 
     74 /* xlfd attributes */
     75 #define XAW_TPROP_FOUNDRY	(1<<0)
     76 #define XAW_TPROP_FAMILY	(1<<1)
     77 #define XAW_TPROP_WEIGHT	(1<<2)
     78 #define XAW_TPROP_SLANT		(1<<3)
     79 #define XAW_TPROP_SETWIDTH	(1<<4)
     80 #define XAW_TPROP_ADDSTYLE	(1<<5)
     81 #define XAW_TPROP_PIXELSIZE	(1<<6)
     82 #define XAW_TPROP_POINTSIZE	(1<<7)
     83 #define XAW_TPROP_RESX		(1<<8)
     84 #define XAW_TPROP_RESY		(1<<9)
     85 #define XAW_TPROP_SPACING	(1<<10)
     86 #define XAW_TPROP_AVGWIDTH	(1<<11)
     87 #define XAW_TPROP_REGISTRY	(1<<12)
     88 #define XAW_TPROP_ENCODING	(1<<13)
     89 struct _XawTextProperty {	/* to be extended/modified */
     90     XrmQuark identifier, code;
     91     unsigned long mask;
     92     XFontStruct *font;
     93     XFontSet fontset;
     94     Pixel foreground, background;
     95     Pixmap foreground_pixmap, background_pixmap;
     96     XrmQuark xlfd;
     97 
     98     unsigned long xlfd_mask;
     99     XrmQuark foundry, family, weight, slant, setwidth, addstyle, pixel_size,
    100 	     point_size, res_x, res_y, spacing, avgwidth, registry, encoding;
    101 
    102     short underline_position, underline_thickness;
    103 };
    104 
    105 struct _XawTextPropertyList {
    106     XrmQuark identifier;
    107     Screen *screen;
    108     Colormap colormap;
    109     int depth;
    110     XawTextProperty **properties;
    111     Cardinal num_properties;
    112     XawTextPropertyList *next;
    113 };
    114 
    115 typedef struct _XawTextPaintStruct XawTextPaintStruct;
    116 struct _XawTextPaintStruct {
    117     XawTextPaintStruct *next;
    118     int x, y, width;
    119     char *text;			/* formatted text */
    120     Cardinal length;		/* length of text */
    121     XawTextProperty *property;
    122     int max_ascent, max_descent;
    123     XmuArea *backtabs;
    124     Boolean highlight;
    125 };
    126 
    127 typedef struct {
    128     XmuArea *clip, *hightabs;			/* clip list */
    129     XawTextPaintStruct *paint, *bearings;	/* drawing information */
    130 } XawTextPaintList;
    131 
    132 typedef struct {
    133     XtPointer next_extension;
    134     XrmQuark record_type;
    135     long version;
    136     Cardinal record_size;
    137     Bool (*BeginPaint)(Widget);
    138     void (*PreparePaint)(Widget, int, int,
    139 			 XawTextPosition, XawTextPosition, Bool);
    140     void (*DoPaint)(Widget);
    141     Bool (*EndPaint)(Widget);
    142 } TextSinkExtRec, *TextSinkExt;
    143 #endif
    144 
    145 typedef void (*_XawSinkDisplayTextProc)
    146      (Widget, int, int, XawTextPosition, XawTextPosition, Bool);
    147 
    148 typedef void (*_XawSinkInsertCursorProc)
    149      (Widget, int, int, XawTextInsertState);
    150 
    151 typedef void (*_XawSinkClearToBackgroundProc)
    152      (Widget, int, int, unsigned int, unsigned int);
    153 
    154 typedef void (*_XawSinkFindPositionProc)
    155      (Widget, XawTextPosition, int, int, Bool, XawTextPosition*, int*, int*);
    156 
    157 typedef void (*_XawSinkFindDistanceProc)
    158      (Widget, XawTextPosition, int, XawTextPosition, int*,
    159       XawTextPosition*, int*);
    160 
    161 typedef void (*_XawSinkResolveProc)
    162      (Widget, XawTextPosition, int, int, XawTextPosition*);
    163 
    164 typedef int  (*_XawSinkMaxLinesProc)
    165      (Widget, unsigned int);
    166 
    167 typedef int  (*_XawSinkMaxHeightProc)
    168      (Widget, int);
    169 
    170 typedef void (*_XawSinkSetTabsProc)
    171      (Widget, int, short*);
    172 
    173 typedef void (*_XawSinkGetCursorBoundsProc)
    174      (Widget, XRectangle*);
    175 
    176 typedef struct _TextSinkClassPart {
    177     _XawSinkDisplayTextProc DisplayText;
    178     _XawSinkInsertCursorProc InsertCursor;
    179     _XawSinkClearToBackgroundProc ClearToBackground;
    180     _XawSinkFindPositionProc FindPosition;
    181     _XawSinkFindDistanceProc FindDistance;
    182     _XawSinkResolveProc Resolve;
    183     _XawSinkMaxLinesProc MaxLines;
    184     _XawSinkMaxHeightProc MaxHeight;
    185     _XawSinkSetTabsProc	SetTabs;
    186     _XawSinkGetCursorBoundsProc GetCursorBounds;
    187 #ifndef OLDXAW
    188     TextSinkExt extension;
    189 #endif
    190 } TextSinkClassPart;
    191 
    192 /* Full class record */
    193 typedef struct _TextSinkClassRec {
    194     ObjectClassPart     object_class;
    195     TextSinkClassPart	text_sink_class;
    196 } TextSinkClassRec;
    197 
    198 extern TextSinkClassRec textSinkClassRec;
    199 
    200 /* New fields for the TextSink object */
    201 typedef struct {
    202     /* resources */
    203     Pixel foreground;		/* Foreground color */
    204     Pixel background;		/* Background color */
    205 
    206     /* private */
    207     Position *tabs;		/* The tab stops as pixel values */
    208     short *char_tabs;		/* The tabs stops as character values */
    209     int tab_count;		/* number of items in tabs */
    210 
    211 #ifndef OLDXAW
    212     /* more resources */
    213     Pixel cursor_color;
    214     XawTextPropertyList *properties;
    215     XawTextPaintList *paint;
    216     XtPointer pad[2];	/* for future use and keep binary compatibility */
    217 #endif
    218 } TextSinkPart;
    219 
    220 /* Full instance record */
    221 typedef struct _TextSinkRec {
    222     ObjectPart	 object;
    223     TextSinkPart text_sink;
    224 } TextSinkRec;
    225 
    226 /* Semi private routines */
    227 #ifndef OLDXAW
    228 XawTextPropertyList *XawTextSinkConvertPropertyList
    229 (
    230  String			 name,
    231  String			 spec,
    232  Screen			*screen,
    233  Colormap		 Colormap,
    234  int			 depth
    235  );
    236 
    237 XawTextProperty *XawTextSinkGetProperty
    238 (
    239  Widget			 w,
    240  XrmQuark		 property
    241  );
    242 
    243 XawTextProperty *XawTextSinkCopyProperty
    244 (
    245  Widget			w,
    246  XrmQuark		property
    247  );
    248 
    249 XawTextProperty *XawTextSinkAddProperty
    250 (
    251  Widget			 w,
    252  XawTextProperty	*property
    253  );
    254 
    255 XawTextProperty *XawTextSinkCombineProperty
    256 (
    257  Widget			 w,
    258  XawTextProperty	*result_in_out,
    259  XawTextProperty	*property,
    260  Bool			 override
    261  );
    262 
    263 Bool XawTextSinkBeginPaint
    264 (
    265  Widget			w
    266  );
    267 
    268 void XawTextSinkPreparePaint
    269 (
    270  Widget			w,
    271  int			y,
    272  int			line,
    273  XawTextPosition	from,
    274  XawTextPosition	to,
    275  Bool			highlight
    276 );
    277 
    278 void XawTextSinkDoPaint
    279 (
    280  Widget			w
    281  );
    282 
    283 Bool XawTextSinkEndPaint
    284 (
    285  Widget			w
    286  );
    287 #endif
    288 
    289 #define XtInheritDisplayText	   ((_XawSinkDisplayTextProc)_XtInherit)
    290 #define XtInheritInsertCursor	   ((_XawSinkInsertCursorProc)_XtInherit)
    291 #define XtInheritClearToBackground ((_XawSinkClearToBackgroundProc)_XtInherit)
    292 #define XtInheritFindPosition	   ((_XawSinkFindPositionProc)_XtInherit)
    293 #define XtInheritFindDistance	   ((_XawSinkFindDistanceProc)_XtInherit)
    294 #define XtInheritResolve	   ((_XawSinkResolveProc)_XtInherit)
    295 #define XtInheritMaxLines	   ((_XawSinkMaxLinesProc)_XtInherit)
    296 #define XtInheritMaxHeight	   ((_XawSinkMaxHeightProc)_XtInherit)
    297 #define XtInheritSetTabs	   ((_XawSinkSetTabsProc)_XtInherit)
    298 #define XtInheritGetCursorBounds   ((_XawSinkGetCursorBoundsProc)_XtInherit)
    299 
    300 #endif /* _XawTextSinkP_h */
    301