/* 
   drvrpl.cpp - Driver to output Real3D RPL polygons
             - written by Glenn M. Lewis <glenn_AT_gmlewis.com> - 6/18/96
	       http://www.gmlewis.com/>
	       Based on...

   drvSAMPL.cpp : This file is part of pstoedit
   Skeleton for the implementation of new backends

   Copyright (C) 1993 - 2021 Wolfgang Glunz, wglunz35_AT_pstoedit.net

    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.

*/
#include "drvrpl.h"
#include I_fstream
#include I_stdio
#include I_stdlib

drvRPL::derivedConstructor(drvRPL):
constructBase
{
	// driver specific initializations
	// and writing of header to output file
}

drvRPL::~drvRPL()
{
	// driver specific deallocations
	// and writing of trailer to output file
	options=nullptr;
}

void drvRPL::print_coords()
{
	for (unsigned int n = 0; n < numberOfElementsInPath(); n++) {
		const basedrawingelement & elem = pathElement(n);
		switch (elem.getType()) {
		case moveto:{
				const Point & p = elem.getPoint(0);
				outf << p.x_ + x_offset << " 0 " << p.y_ + y_offset << endl;
			}
			break;
		case lineto:{
				const Point & p = elem.getPoint(0);
				outf << p.x_ + x_offset << " 0 " << p.y_ + y_offset << endl;
			}
			break;
		case closepath:		// Not supported
			break;
		case curveto:{			// Not supported
			}
			break;
		default:
			errf << "\t\tFatal: unexpected case in drvpdf " << endl;
			abort();
			break;
		}
	}
	outf << "0 1 0 ( dvect )" << endl;
	outf << numberOfElementsInPath() << " ( count )" << endl;
	outf << currentR() << " " << currentG() << " " << currentB() << " ( RGBA )" << endl;
	outf << "\"polygon\" ( name )" << endl;
	outf << "0 ( flags )" << endl;
	outf << "\"CEND\"" << endl;
	outf << "C_POLYGON DROP" << endl << endl;
}


void drvRPL::open_page()
{
	//  outf << "Opening page: " << currentPageNumber << endl;
}

void drvRPL::close_page()
{
	//  outf << "Closing page: " << (currentPageNumber) << endl;
}


void drvRPL::show_path()
{
	print_coords();
}

static DriverDescriptionT < drvRPL > D_rpl("rpl", "Real3D Programming Language format","", "rpl", false,	// if backend supports subpaths, else 0
										   // if subpaths are supported, the backend must deal with
										   // sequences of the following form
										   // moveto (start of subpath)
										   // lineto (a line segment)
										   // lineto 
										   // moveto (start of a new subpath)
										   // lineto (a line segment)
										   // lineto 
										   //
										   // If this argument is set to 0 each subpath is drawn 
										   // individually which might not necessarily represent
										   // the original drawing.
										   false,	// if backend supports curves, else 0
										   false,	// if backend supports elements with fill and edges
										   false,	// if backend supports text, else 0
										   DriverDescription::noimage,	// no support for PNG file images
										   DriverDescription::normalopen, false,	// if format supports multiple pages in one file
										   false  /*clipping */ 
										   );
