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/*
 * Ghostview.h -- Public header file for Ghostview widget.
 * Copyright (C) 1992  Timothy O. Theisen
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *   Author: Tim Theisen           Systems Programmer
 * Internet: tim@cs.wisc.edu       Department of Computer Sciences
 *     UUCP: uwvax!tim             University of Wisconsin-Madison
 *    Phone: (608)262-0438         1210 West Dayton Street
 *      FAX: (608)262-9777         Madison, WI   53706
 */


#ifndef _Ghostview_h
#define _Ghostview_h
/* Be sure that FILE* is defined */
#include <stdio.h>

/****************************************************************
 *
 * Ghostview widget
 *
 ****************************************************************/


/* Resources:

 Name                Class              RepType         Default Value
 ----                -----              -------         -------------
 background          Background         Pixel           XtDefaultBackground
 border              BorderColor        Pixel           XtDefaultForeground
 borderWidth         BorderWidth        Dimension       1
 bottomMargin        Margin             int             0
 busyCursor          Cursor             Cursor          watch
 callback            Callback           Pointer         NULL
 cursor              Cursor             Cursor          crosshair
 destroyCallback     Callback           Pointer         NULL
 filename            Filename           String          "-"
 height              Height             Dimension       0
 interpreter         Interpreter        String          "gs"
 leftMargin          Margin             int             0
 llx                 BoundingBox        Int             0
 lly                 BoundingBox        Int             0
 mappedWhenManaged   MappedWhenManaged  Boolean         True
 messageCallback     Callback           Pointer         NULL
 orientation         Orientation        PageOrientation Portrait
 outputCallback      Callback           Pointer         NULL
 preload             Preload            String          NULL
 quiet               Quiet              Boolean         True
 rightMargin         Margin             int             0
 topMargin           Margin             int             0
 urx                 BoundingBox        Int             612
 ury                 BoundingBox        Int             792
 useBackingPixmap    UseBackingPixmap   Boolean         True
 width               Width              Dimension       0
 x                   Position           Position        0
 xdpi                Resolution         Float           **
 y                   Position           Position        0
 ydpi                Resolution         Float           **

 ** automatically calculated from display parameters if width and
    height are not set.

*/


/* define any special resource names here that are not in <X11/StringDefs.h> */

#define XtNbusyCursor "busyCursor"
#define XtNcursor "cursor"
#define XtNfilename "filename"
#define XtNinterpreter "interpreter"
#define XtNmessageCallback "messageCallback"
#define XtNoutputCallback "outputCallback"
#define XtNpreload "preload"
#define XtNquiet "quiet"
#define XtNllx "llx"
#define XtNlly "lly"
#define XtNurx "urx"
#define XtNury "ury"
#define XtNuseBackingPixmap "useBackingPixmap"
#define XtNxdpi "xdpi"
#define XtNydpi "ydpi"
#define XtNrightMargin "rightMargin"
#define XtNleftMargin "leftMargin"
#define XtNbottomMargin "bottomMargin"
#define XtNtopMargin "topMargin"

#define XtCBoundingBox "BoundingBox"
#define XtCFilename "Filename"
#define XtCInterpreter "Interpreter"
#define XtCPreload "Preload"
#define XtCQuiet "Quiet"
#define XtCResolution "Resolution"
#define XtCUseBackingPixmap "UseBackingPixmap"

#define XtRPageOrientation "PageOrientation"

/******************************************************************************
 * XmuCvtStringToPageOrientation
 */

/* Number represents clockwise rotation of the paper in degrees */
typedef enum {
    XtPageOrientationPortrait   =   0/* Normal portrait orientation */
    XtPageOrientationLandscape  =  90/* Normal landscape orientation */
    XtPageOrientationUpsideDown = 180/* Don't think this will be used much */
    XtPageOrientationSeascape   = 270   /* Landscape rotated the other way */
} XtPageOrientation;
#define XtEportrait "portrait"
#define XtElandscape "landscape"
#define XtEupsideDown "upside-down"
#define XtEseascape "seascape"
#define XtRPageOrientation "PageOrientation"
extern Boolean XmuCvtStringToPageOrientation();

/* declare specific GhostviewWidget class and instance datatypes */

typedef struct _GhostviewClassRec*      GhostviewWidgetClass;
typedef struct _GhostviewRec*           GhostviewWidget;

/* declare the class constant */

extern WidgetClass ghostviewWidgetClass;

/* Public routines */

extern void GhostviewEnableInterpreter(
#if NeedFunctionPrototypes
    Widget      /* w */
#endif
);    

extern void GhostviewLayout(
#if NeedFunctionPrototypes
    Widget      /* w */,
    Bool        /* xfree */,
    Bool        /* yfree */
#endif
);

extern void GhostviewDisableInterpreter(
#if NeedFunctionPrototypes
    Widget      /* w */
#endif
);

extern Boolean GhostviewIsInterpreterReady(
#if NeedFunctionPrototypes
    Widget      /* w */
#endif
);

extern Boolean GhostviewIsInterpreterRunning(
#if NeedFunctionPrototypes
    Widget      /* w */
#endif
);

extern Pixmap GhostviewGetBackingPixmap(
#if NeedFunctionPrototypes
    Widget      /* w */
#endif
);

extern Boolean GhostviewSendPS(
#if NeedFunctionPrototypes
    Widget      /* widget */,
    FILE*       /* fp */,
    long        /* begin */,
    unsigned int        /* len */,
    Bool        /* close */
#endif
);

extern Boolean GhostviewNextPage(
#if NeedFunctionPrototypes
    Widget      /* w */
#endif
);

/* The structure returned by the regular callback */

typedef struct _GhostviewReturnStruct {
    int width, height;
    int psx, psy;
    float xdpi, ydpi;
} GhostviewReturnStruct;

#endif /* _Ghostview_h */