/*
 * SVG <polyline> implementation
 *
 * Authors:
 *   Lauris Kaplinski <lauris@kaplinski.com>
 *   Abhishek Sharma
 *   Jon A. Cruz <jon@joncruz.org>
 *
 * Copyright (C) 1999-2002 Lauris Kaplinski
 *
 * Released under GNU GPL, read the file 'COPYING' for more information
 */

#include "config.h"

#include "attributes.h"
#include "sp-polyline.h"
#include "display/curve.h"
#include <glibmm/i18n.h>
#include "xml/repr.h"
#include "document.h"

SPShapeClass * SPPolyLineClass::static_parent_class=0;

GType SPPolyLine::sp_polyline_get_type(void)
{
    static GType polyline_type = 0;

    if (!polyline_type) {
        GTypeInfo polyline_info = {
            sizeof (SPPolyLineClass),
            NULL,   /* base_init */
            NULL,   /* base_finalize */
            (GClassInitFunc) SPPolyLineClass::sp_polyline_class_init,
            NULL,   /* klass_finalize */
            NULL,   /* klass_data */
            sizeof (SPPolyLine),
            16,     /* n_preallocs */
            (GInstanceInitFunc) SPPolyLine::init,
            NULL,   /* value_table */
        };
        polyline_type = g_type_register_static (SP_TYPE_SHAPE, "SPPolyLine", &polyline_info, (GTypeFlags)0);
    }
    return polyline_type;
}

void SPPolyLineClass::sp_polyline_class_init(SPPolyLineClass *klass)
{
    //GObjectClass * gobject_class = (GObjectClass *) klass;
    SPObjectClass * sp_object_class = (SPObjectClass *) klass;
    SPItemClass * item_class = (SPItemClass *) klass;

    static_parent_class = (SPShapeClass *)g_type_class_ref(SP_TYPE_SHAPE);

    sp_object_class->build = SPPolyLine::build;
    sp_object_class->set = SPPolyLine::set;
    sp_object_class->write = SPPolyLine::write;

    item_class->description = SPPolyLine::getDescription;
}

CPolyLine::CPolyLine(SPPolyLine* polyline) : CShape(polyline) {
	this->sppolyline = polyline;
}

CPolyLine::~CPolyLine() {
}

void SPPolyLine::init(SPPolyLine * polyline)
{
	polyline->cpolyline = new CPolyLine(polyline);
	polyline->cshape = polyline->cpolyline;
	polyline->clpeitem = polyline->cpolyline;
	polyline->citem = polyline->cpolyline;
	polyline->cobject = polyline->cpolyline;
}

void CPolyLine::onBuild(SPDocument * document, Inkscape::XML::Node * repr) {
	SPPolyLine* object = this->sppolyline;

    CShape::onBuild(document, repr);

    object->readAttr( "points" );
}

// CPPIFY: remove
void SPPolyLine::build(SPObject * object, SPDocument * document, Inkscape::XML::Node * repr)
{
	((SPPolyLine*)object)->cpolyline->onBuild(document, repr);
}

void CPolyLine::onSet(unsigned int key, const gchar* value) {
	SPPolyLine* object = this->sppolyline;
    SPPolyLine *polyline = object;

    switch (key) {
	case SP_ATTR_POINTS: {
            SPCurve * curve;
            const gchar * cptr;
            char * eptr;
            gboolean hascpt;

            if (!value) break;
            curve = new SPCurve ();
            hascpt = FALSE;

            cptr = value;
            eptr = NULL;

            while (TRUE) {
                gdouble x, y;

                while (*cptr != '\0' && (*cptr == ',' || *cptr == '\x20' || *cptr == '\x9' || *cptr == '\xD' || *cptr == '\xA')) {
                    cptr++;
                }
                if (!*cptr) break;

                x = g_ascii_strtod (cptr, &eptr);
                if (eptr == cptr) break;
                cptr = eptr;

                while (*cptr != '\0' && (*cptr == ',' || *cptr == '\x20' || *cptr == '\x9' || *cptr == '\xD' || *cptr == '\xA')) {
                    cptr++;
                }
                if (!*cptr) break;

                y = g_ascii_strtod (cptr, &eptr);
                if (eptr == cptr) break;
                cptr = eptr;
                if (hascpt) {
                    curve->lineto(x, y);
                } else {
                    curve->moveto(x, y);
                    hascpt = TRUE;
                }
            }
		
            (SP_SHAPE (polyline))->setCurve (curve, TRUE);
            curve->unref();
            break;
	}
	default:
            CShape::onSet(key, value);
            break;
    }
}

// CPPIFY: remove
void SPPolyLine::set(SPObject *object, unsigned int key, const gchar *value)
{
	((SPPolyLine*)object)->cpolyline->onSet(key, value);
}

Inkscape::XML::Node* CPolyLine::onWrite(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags) {
	SPPolyLine* object = this->sppolyline;

	// CPPIFY: This is a simple type check?
    //SP_POLYLINE(object);

    if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
        repr = xml_doc->createElement("svg:polyline");
    }

    if (repr != object->getRepr()) {
        repr->mergeFrom(object->getRepr(), "id");
    }

    CShape::onWrite(xml_doc, repr, flags);

    return repr;
}

// CPPIFY: remove
Inkscape::XML::Node *SPPolyLine::write(SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
{
	return ((SPPolyLine*)object)->cpolyline->onWrite(xml_doc, repr, flags);
}

gchar* CPolyLine::onDescription() {
	return g_strdup(_("<b>Polyline</b>"));
}

// CPPIFY: remove
gchar *SPPolyLine::getDescription(SPItem * item)
{
	return ((SPPolyLine*)item)->cpolyline->onDescription();
}


/*
  Local Variables:
  mode:c++
  c-file-style:"stroustrup"
  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :