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/*
 *      $Id: ViewP.h,v 1.16 2006-07-14 17:24:32 dbrown Exp $
 */
/************************************************************************
*									*
*			     Copyright (C)  1992			*
*	     University Corporation for Atmospheric Research		*
*			     All Rights Reserved			*
*									*
************************************************************************/
/*
 *	File:		ViewP.h
 *
 *	Author:		Ethan Alpert
 *			National Center for Atmospheric Research
 *			PO 3000, Boulder, Colorado
 *
 *	Date:		Tue Sep 1 10:01:24 MDT 1992
 *
 *	Description:	Private header file for NhlViewClass. Contains
 *			NhlSegTransList typedef for storing output from the
 *			Segments utility.
 */
#ifndef _NVIEWP_h
#define _NVIEWP_h

#include <ncarg/hlu/BaseP.h>
#include <ncarg/hlu/ViewI.h>
#include <ncarg/hlu/Workstation.h>

#include <ncarg/hlu/Segments.h>

typedef struct _NhlSegTransListNode {
	float	seg_trans[6];
	struct _NhlTransDat	*seg_trans_dat;
	struct _NhlSegTransListNode *next;
} NhlSegTransListNode, *NhlSegTransList;

typedef struct _NhlLayerList{
	struct _NhlLayerRec *layer;
	struct _NhlLayerList *next;
} NhlLayerListNode, *NhlLayerList;

/* 
 * private resource used by Overlay to set the Overlay id
 * for a View object
 */

#define NhlNvpOverlayId		".vpOverlayId"
#define NhlCvpOverlayId		".VpOverlayId"

typedef struct _NhlViewLayerPart {
	/* User accessible resource fields */

	NhlBoolean	on;
	float		x,y;
	float		width,height;
	NhlBoolean	keep_aspect;
	NhlBoolean	use_segments;
	int		annomanager_id;
	NhlBoolean      clip_on;

	/* Private fields (set only through _NhlSetAnnoView) */

	int		overlay_id;

	/* Internal private fields */

        _NhlCBList	annostatuscb;

	NhlBoolean	x_set;
	NhlBoolean	y_set;
	NhlBoolean	width_set;
	NhlBoolean	height_set;
	
	NhlSegTransList	plot_segments_list;
	NhlLayerList	children;
	int		segment_wksid;

/*
* Created at initialize this transformation data is used to compute an
* Intermediate transformation matrix that describes the movement needs to be generated. It is
* used to transform the x,y,width and height fields of all of the
* children. The children then compute their own private transformation
* matrix.
*/

	NhlTransDat	*thetrans_children;
/*
* this is an intermediate transformation matrix
*/
	float	trans_children[6];
	float	aspect;

	/* Export Values */

	float fr,fl,fb,ft;
	
	/* import Values */

	float ur,ul,ub,ut;	/* these are user coordinate values they are
					set by the plot level of the HLU */

} NhlViewLayerPart;

typedef struct _NhlViewLayerRec {
	NhlBaseLayerPart base;
	NhlViewLayerPart view;
} NhlViewLayerRec;

typedef struct _NhlViewClassPart {
	int	segment_workstation;
	NhlErrorTypes	(*get_bb)();
} NhlViewClassPart; 

typedef struct _NhlViewClassRec {
	NhlBaseClassPart	base_class;
	NhlViewClassPart	view_class;
} NhlViewClassRec;

extern NhlViewClassRec NhlviewClassRec;

#define NhlDEFAULT_SEG_WKS 2
#define NhlDEFAULT_CONNECTION_ID 1
#define NhlDEFAULT_SEG_WKS_TYPE 3

extern void _NhlAddViewChildLayer(
#if	NhlNeedProto
NhlLayer   /* instance */,
NhlLayer   /* child */
#endif
);
 
extern void _NhlDeleteViewChildLayer(
#if	NhlNeedProto
NhlLayer   /* instance */,
NhlLayer   /* child */
#endif
);

extern NhlTransDat *_NhlNewViewSegment(
#if	NhlNeedProto
NhlLayer   /* instance */
#endif
);

extern void _NhlDeleteViewSegment(
#if	NhlNeedProto
NhlLayer,  /* instance */
NhlTransDat*    /*trandat */
#endif
);

extern NhlErrorTypes _NhlResetViewSegment(
#if	NhlNeedProto
NhlLayer,  /* instance */
NhlTransDat */* segdat */
#endif
);

extern void _NhlAddBBInfo(
#if	NhlNeedProto
float,		/*t */
float,		/*b */
float,		/*r */
float,		/*l */
NhlBoundingBox*	/*thebox*/
#endif
);

extern void _NhlInternalSetView(
#if	NhlNeedProto
NhlViewLayer	/* theview */,
float		/* x */,
float		/* y */,
float		/* width */,
float		/* height */,
int		/* keep_asp */
#endif
);

extern NhlErrorTypes _NhlGetBB(
#if	NhlNeedProto
	NhlLayer	instance,
	NhlBoundingBox* /* thebox */
#endif
);

extern NhlErrorTypes _NhlSetAnnoView(
#if	NhlNeedProto
	NhlViewLayer	view,
	int		overlay_id,
        int		annomanager_id
#endif
);


#define NHL_DEFAULT_VIEW_WIDTH  .6
#define NHL_DEFAULT_VIEW_HEIGHT .6
#define NHL_DEFAULT_VIEW_X	.2
#define NHL_DEFAULT_VIEW_Y	.8
#define NHL_DEFAULT_VIEW_WIDTH_STR  ".6"
#define NHL_DEFAULT_VIEW_HEIGHT_STR ".6"
#define NHL_DEFAULT_VIEW_X_STR	".2"
#define NHL_DEFAULT_VIEW_Y_STR	".8"

#define	_NhlViewOn(l)	(((NhlViewLayer)l)->view.on)

#define _NhlViewOffScreen(l) ( \
	((NhlViewLayer)l)->view.fr <= 0.0 || \
        ((NhlViewLayer)l)->view.fl >= 1.0 || \
        ((NhlViewLayer)l)->view.ft <= 0.0 || \
        ((NhlViewLayer)l)->view.fb >= 1.0 )

#endif	/*_NVIEWP_h*/