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/**
* SVG <ellipse> and related implementations
*
* Authors:
* Lauris Kaplinski <lauris@kaplinski.com>
* Mitsuru Oka
* Tavmjong Bah
*
* Copyright (C) 1999-2002 Lauris Kaplinski
* Copyright (C) 2000-2001 Ximian, Inc.
* Copyright (C) 2013 Tavmjong Bah
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifndef SEEN_SP_ELLIPSE_H
#define SEEN_SP_ELLIPSE_H
#include "svg/svg-length.h"
#include "sp-shape.h"
/* Common parent class */
#define SP_GENERICELLIPSE(obj) (dynamic_cast<SPGenericEllipse*>(obj))
#define SP_IS_GENERICELLIPSE(obj) (dynamic_cast<const SPGenericEllipse*>((obj)) != NULL)
enum GenericEllipseType {
SP_GENERIC_ELLIPSE_UNDEFINED, // FIXME shouldn't exist
SP_GENERIC_ELLIPSE_ARC,
SP_GENERIC_ELLIPSE_CIRCLE,
SP_GENERIC_ELLIPSE_ELLIPSE
};
class SPGenericEllipse : public SPShape {
public:
SPGenericEllipse();
virtual ~SPGenericEllipse();
// Regardless of type, the ellipse/circle/arc is stored
// internally with these variables. (Circle radius is rx).
SVGLength cx;
SVGLength cy;
SVGLength rx;
SVGLength ry;
/**
* If we have a slice, returns whether the shape is closed ("pizza slice") or not (arc only).
*/
bool closed();
void setClosed(bool value);
double start, end;
GenericEllipseType type;
virtual void build(SPDocument *document, Inkscape::XML::Node *repr);
virtual void set(unsigned int key, char const *value);
virtual void update(SPCtx *ctx, unsigned int flags);
virtual Inkscape::XML::Node *write(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, unsigned int flags);
virtual const char *displayName() const;
virtual void set_shape();
virtual Geom::Affine set_transform(Geom::Affine const &xform);
virtual void snappoints(std::vector<Inkscape::SnapCandidatePoint> &p, Inkscape::SnapPreferences const *snapprefs) const;
virtual void modified(unsigned int flags);
virtual void update_patheffect(bool write);
/**
* @brief Makes sure that start and end lie between 0 and 2 * PI.
*/
void normalize();
Geom::Point getPointAtAngle(double arg) const;
bool set_elliptical_path_attribute(Inkscape::XML::Node *repr);
void position_set(double x, double y, double rx, double ry);
protected:
/**
* @brief Determines whether the shape is a part of an ellipse.
*/
bool _isSlice() const;
bool _closed;
};
#endif
/*
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:fileencoding=utf-8 :
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