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#ifndef SEEN_SP_GUIDE_H
#define SEEN_SP_GUIDE_H
/*
* SPGuide
*
* A guideline
*
* Copyright (C) Lauris Kaplinski 2000
* Copyright (C) Johan Engelen 2007
* Abhishek Sharma
* Jon A. Cruz <jon@joncruz.org>
*
*/
#include <2geom/point.h>
#include <vector>
#include "sp-object.h"
#include "sp-guide-attachment.h"
typedef unsigned int guint32;
extern "C" {
typedef void (*GCallback) (void);
}
class SPDesktop;
struct SPCanvas;
struct SPCanvasGroup;
struct SPGuideLine;
#define SP_GUIDE(obj) (dynamic_cast<SPGuide*>((SPObject*)obj))
#define SP_IS_GUIDE(obj) (dynamic_cast<const SPGuide*>((SPObject*)obj) != NULL)
/* Represents the constraint on p that dot(g.direction, p) == g.position. */
class SPGuide : public SPObject {
public:
SPGuide();
virtual ~SPGuide() {}
void set_color(const unsigned r, const unsigned g, const unsigned b, bool const commit);
void setColor(guint32 c);
void setHiColor(guint32 h) { hicolor = h; }
guint32 getColor() const { return color; }
guint32 getHiColor() const { return hicolor; }
Geom::Point getPoint() const { return point_on_line; }
Geom::Point getNormal() const { return normal_to_line; }
void moveto(Geom::Point const point_on_line, bool const commit);
void set_normal(Geom::Point const normal_to_line, bool const commit);
void set_label(const char* label, bool const commit);
char const* getLabel() const { return label; }
void set_locked(const bool locked, bool const commit);
bool getLocked() const { return locked; }
static SPGuide *createSPGuide(SPDocument *doc, Geom::Point const &pt1, Geom::Point const &pt2);
void showSPGuide(SPCanvasGroup *group, GCallback handler);
void hideSPGuide(SPCanvas *canvas);
void showSPGuide(); // argument-free versions
void hideSPGuide();
void sensitize(SPCanvas *canvas, bool sensitive);
bool isHorizontal() const { return (normal_to_line[Geom::X] == 0.); };
bool isVertical() const { return (normal_to_line[Geom::Y] == 0.); };
char* description(bool const verbose = true) const;
double angle() const { return std::atan2( - normal_to_line[Geom::X], normal_to_line[Geom::Y] ); }
double getDistanceFrom(Geom::Point const &pt) const;
Geom::Point getPositionFrom(Geom::Point const &pt) const;
protected:
virtual void build(SPDocument* doc, Inkscape::XML::Node* repr);
virtual void release();
virtual void set(unsigned int key, const char* value);
char* label;
std::vector<SPGuideLine *> views; // contains an object of type SPGuideline (see display/guideline.cpp for definition)
bool locked;
Geom::Point normal_to_line;
Geom::Point point_on_line;
guint32 color;
guint32 hicolor;
public:
std::vector<SPGuideAttachment> attached_items; // unused
};
// These functions rightfully belong to SPDesktop. What gives?!
void sp_guide_pt_pairs_to_guides(SPDocument *doc, std::list<std::pair<Geom::Point, Geom::Point> > &pts);
void sp_guide_create_guides_around_page(SPDesktop *dt);
void sp_guide_delete_all_guides(SPDesktop *dt);
void sp_guide_remove(SPGuide *guide);
#endif // SEEN_SP_GUIDE_H
/*
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:textwidth=99 :
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