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%%	options

copyright owner	=	Dirk Krause
copyright year	=	2018-xxxx
SPDX-License-Identifier:	BSD-3-Clause

%%	header

/**	@file	wxdcomp.h	Compare drawing objects.
*/

#ifndef	DK4TYPES_H_INCLUDED
#include "dk4types.h"
#endif

#ifndef	WXDTYPES_H_INCLUDED
#include "wxdtypes.h"
#endif


#ifdef	__cplusplus
extern "C" {
#endif

/**	Compare drawing objects.
	@param	l	Left object.
	@param	r	Right object or name.
	@param	cr	Comparison criteria, ignored.
	@return	Comparison result: -1: l<r, 0: l=r, 1 l>r.
*/

int
wxd2lat_compare_object(const void *l, const void *r, int cr);


/**	Find category for object type.
	@param	ot	Object type.
	@return	Category for object type.
*/

int
wxd2lat_object_category(int8_t ot);


#ifdef	__cplusplus
}
#endif

%%	module

#include "wxd2lat.h"



$!trace-include



int
wxd2lat_object_category(int8_t ot)
{
	int		 back	= WXD_OC_CONTROL;
	$? "+ wxd2lat_object_category %d", (int)ot
	switch (ot) {
		case WXD_OT_TEXT : {
			back = WXD_OC_TEXT ;
		} break;
		case WXD_OT_POLYLINE : case WXD_OT_O_SPLINE : case WXD_OT_O_ARC : {
			back = WXD_OC_OPEN ;
		} break;
		case WXD_OT_POLYGON : case WXD_OT_C_SPLINE : case WXD_OT_C_ARC :
		case WXD_OT_CIRCLE : case WXD_OT_ELLIPSE : case WXD_OT_BOX : {
			back = WXD_OC_CLOSED ;
		} break;
		case WXD_OT_IMAGE : {
			back = WXD_OC_IMAGE ;
		} break;
	}
	$? "- wxd2lat_object_category %d", back
	return back;
}



static
int
cmp_u8(uint8_t a, uint8_t b)
{
	return ((a > b) ? (1) : ((a < b) ? (-1) : (0)));
}


static
int
cmp_i8(int8_t a, int8_t b)
{
	return ((a > b) ? (1) : ((a < b) ? (-1) : (0)));
}



#if 0

static
int
cmp_u16(uint16_t a, uint16_t b)
{
	return ((a > b) ? (1) : ((a < b) ? (-1) : (0)));
}

#endif


static
int
cmp_i16(int16_t a, int16_t b)
{
	return ((a > b) ? (1) : ((a < b) ? (-1) : (0)));
}



static
int
cmp_int(int a, int b)
{
	return ((a > b) ? (1) : ((a < b) ? (-1) : (0)));
}



static
int
cmp_dbl(double a, double b)
{
	return ((a > b) ? (1) : ((a < b) ? (-1) : (0)));
}


int
wxd2lat_compare_object(const void *l, const void *r, int DK4_ARG_UNUSED(cr))
{
	const wxd_object_t	*pl;
	const wxd_object_t	*pr;
	int					 cal;
	int					 car;
	int					 back = 0;
	DK4_UNUSED_ARG(cr)
	$? "+ wxd2lat_compare_object %d", cr
	if (NULL != l) {
		if (NULL != r) {
			pl = (const wxd_object_t *)l;
			pr = (const wxd_object_t *)r;
			back = cmp_i16(pl->lay, pr->lay);
			if (0 == back) {
			cal = wxd2lat_object_category(pl->ot);
			car = wxd2lat_object_category(pr->ot);
			back = cmp_int(cal, car);
			if (0 == back) {
#if	0
			back = cmp_u16(pl->lw, pr->lw);
#endif
			back = cmp_dbl(pl->lw, pr->lw);
			if (0 == back) {
			back = cmp_u8(pl->ls, pr->ls);
			if (0 == back) {
			back = cmp_u8(pl->sl, pr->sl);
			if (0 == back) {
			back = cmp_u8(pl->js, pr->js);
			if (0 == back) {
			back = cmp_u8(pl->csfs, pr->csfs);
			if (0 == back) {
			back = cmp_u8(pl->ml, pr->ml);
			if (0 == back) {
			back = cmp_u8(pl->sc[0], pr->sc[0]);
			if (0 == back) {
			back = cmp_u8(pl->sc[1], pr->sc[1]);
			if (0 == back) {
			back = cmp_u8(pl->sc[2], pr->sc[2]);
			if (0 == back) {
			back = cmp_u8(pl->fc[0], pr->fc[0]);
			if (0 == back) {
			back = cmp_u8(pl->fc[1], pr->fc[1]);
			if (0 == back) {
			back = cmp_u8(pl->fc[2], pr->fc[2]);
			if (0 == back) {
			back = cmp_i8(pl->ot, pr->ot);
			}
			}
			}
			}
			}
			}
			}
			}
			}
			}
			}
			}
			}
			}
		}
		else {
			back = 1;
		}
	}
	else {
		if (NULL != r) {
			back = -1;
		}
	}
	$? "- wxd2lat_compare_object %d", back
	return back;
}




/* vim: set ai sw=4 ts=4 : */