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/*
* $Xorg: TextSink.h,v 1.4 2001/02/09 02:03:46 xorgcvs Exp $
*/
/***********************************************************
Copyright 1987, 1988, 1994, 1998 The Open Group
Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
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
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.
******************************************************************/
/* $XFree86: xc/lib/Xaw/TextSink.h,v 1.9 2001/01/17 19:42:35 dawes Exp $ */
#ifndef _XawTextSink_h
#define _XawTextSink_h
#include <X11/Xaw/Text.h>
/***********************************************************************
*
* TextSink Object
*
***********************************************************************/
/* Resources:
Name Class RepType Default Value
---- ----- ------- -------------
font Font XFontStruct * XtDefaultFont
foreground Foreground Pixel XtDefaultForeground
background Background Pixel XtDefaultBackground
cursorColor Color Pixel XtDefaultForeground
*/
/* Class record constants */
extern WidgetClass textSinkObjectClass;
typedef struct _TextSinkClassRec *TextSinkObjectClass;
typedef struct _TextSinkRec *TextSinkObject;
typedef enum {XawisOn, XawisOff} XawTextInsertState;
#ifndef OLDXAW
#ifndef XtNcursorColor
#define XtNcursorColor "cursorColor"
#endif
#define XawNtextProperties "textProperties"
#define XawCTextProperties "TextProperties"
#define XawRTextProperties "XawTextProperties"
#endif
/*
* Public Functions
*/
_XFUNCPROTOBEGIN
/*
* Function:
* XawTextSinkDisplayText
*
* Parameters:
* w - the TextSink Object
* x - location to start drawing text
* y - ""
* pos1 - location of starting and ending points in the text buffer
* pos2 - ""
* highlight - hightlight this text?
*
* Description:
* Stub function that in subclasses will display text.
*
* Note:
* This function doesn't actually display anything, it is only a place
* holder.
*/
void XawTextSinkDisplayText
(
Widget w,
#if NeedWidePrototypes
int x,
int y,
#else
Position x,
Position y,
#endif
XawTextPosition pos1,
XawTextPosition pos2,
#if NeedWidePrototypes
int highlight
#else
Boolean highlight
#endif
);
/*
* Function:
* XawTextSinkInsertCursor
*
* Parameters:
* w - the TextSink Object.
* x - location for the cursor.
* y - ""
* state - whether to turn the cursor on, or off
*
* Description:
* Places the InsertCursor.
*
* Note:
* This function doesn't actually display anything, it is only a place
* holder.
*/
void XawTextSinkInsertCursor
(
Widget w,
#if NeedWidePrototypes
int x,
int y,
int state
#else
Position x,
Position y,
XawTextInsertState state
#endif
);
/*
* Function:
* XawTextSinkClearToBackground
*
* Parameters:
* w - TextSink Object
* x - location of area to clear
* y - ""
* width - size of area to clear
* height - ""
*
* Description:
* Clears a region of the sink to the background color.
*
* Note:
* This function doesn't actually display anything, it is only a place
* holder.
*/
void XawTextSinkClearToBackground
(
Widget w,
#if NeedWidePrototypes
int x,
int y,
unsigned int width,
unsigned int height
#else
Position x,
Position y,
Dimension width,
Dimension height
#endif
);
/*
* Function:
* XawTextSinkFindPosition
*
* Parameters:
* w - TextSink Object
* fromPos - reference position
* fromX - reference location
* width - width of section to paint text
* stopAtWordBreak - returned position is a word break?
* resPos - Position to return
* resWidth - Width actually used
* resHeight - Height actually used
*
* Description:
* Finds a position in the text.
*/
void XawTextSinkFindPosition
(
Widget w,
XawTextPosition fromPos,
int fromX,
int width,
#if NeedWidePrototypes
int stopAtWordBreak,
#else
Boolean stopAtWordBreak,
#endif
XawTextPosition* pos_return,
int *width_return,
int *height_return
);
/*
* Function:
* XawTextSinkFindDistance
*
* Parameters:
* w - TextSink Object
* fromPos - starting Position
* fromX - x location of starting Position
* toPos - end Position
* resWidth - Distance between fromPos and toPos
* resPos - Acutal toPos used
* resHeight - Height required by this text
*
* Description:
* Find the Pixel Distance between two text Positions.
*/
void XawTextSinkFindDistance
(
Widget w,
XawTextPosition fromPos,
int fromX,
XawTextPosition toPos,
int *width_return,
XawTextPosition *pos_return,
int *height_return
);
/*
* Function:
* XawTextSinkResolve
*
* Parameters:
* w - TextSink Object
* pos - reference Position
* fromx - reference Location
* width - width to move
* resPos - resulting position
*
* Description:
* Resloves a location to a position.
*/
void XawTextSinkResolve
(
Widget w,
XawTextPosition fromPos,
int fromX,
int width,
XawTextPosition *pos_return
);
/*
* Function:
* XawTextSinkMaxLines
*
* Parameters:
* w - TextSink Object
* height - height to fit lines into
*
* Returns:
* Number of lines that will fit
*
* Description:
* Finds the Maximum number of lines that will fit in a given height.
*/
int XawTextSinkMaxLines
(
Widget w,
#if NeedWidePrototypes
unsigned int height
#else
Dimension height
#endif
);
/*
* Function:
* XawTextSinkMaxHeight
*
* Parameters:
* w - TextSink Object
* lines - number of lines
*
* Returns:
* Height
*
* Description:
* Finds the Minium height that will contain a given number lines.
*/
int XawTextSinkMaxHeight
(
Widget w,
int lines
);
/*
* Function:
* XawTextSinkSetTabs
*
* Parameters:
* w - TextSink Object
* tab_count - number of tabs in the list
* tabs - text positions of the tabs
* Description:
* Sets the Tab stops.
*/
void XawTextSinkSetTabs
(
Widget w,
int tab_count,
int *tabs
);
/*
* Function:
* XawTextSinkGetCursorBounds
*
* Parameters:
* w - TextSink Object
* rect - X rectance containing the cursor bounds
* Description:
* Finds the bounding box for the insert curor (caret).
*/
void XawTextSinkGetCursorBounds
(
Widget w,
XRectangle *rect_return
);
_XFUNCPROTOEND
#endif /* _XawTextSink_h */