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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* SPGuide -- a guideline
*//*
* Authors:
* Lauris Kaplinski 2000
* Johan Engelen 2007
* Abhishek Sharma
* Jon A. Cruz <jon@joncruz.org>
*
* Copyright (C) 2018 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef SEEN_SP_GUIDE_H
#define SEEN_SP_GUIDE_H
#include <2geom/point.h>
#include <vector>
#include "sp-object.h"
typedef unsigned int guint32;
extern "C" {
typedef void (*GCallback) ();
}
class SPDesktop;
namespace Inkscape {
class CanvasItemGroup;
class CanvasItemGuideLine;
namespace UI::Widget {
class Canvas;
}
} // namespace Inkscape
/* Represents the constraint on p that dot(g.direction, p) == g.position. */
class SPGuide : public SPObject {
public:
SPGuide();
~SPGuide() override = default;
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);
SPGuide *duplicate();
void showSPGuide(Inkscape::CanvasItemGroup *group);
void hideSPGuide(Inkscape::UI::Widget::Canvas *canvas);
void showSPGuide(); // argument-free versions
void hideSPGuide();
bool remove(bool force=false);
void sensitize(Inkscape::UI::Widget::Canvas *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] ); }
protected:
void build(SPDocument* doc, Inkscape::XML::Node* repr) override;
void release() override;
void set(SPAttr key, const char* value) override;
char* label;
std::vector<Inkscape::CanvasItemGuideLine *> views; // See display/control/guideline.h.
bool locked;
Geom::Point normal_to_line;
Geom::Point point_on_line;
guint32 color;
guint32 hicolor;
};
// 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(SPDocument *doc);
void sp_guide_delete_all_guides(SPDocument *doc);
MAKE_SP_OBJECT_DOWNCAST_FUNCTIONS(SP_GUIDE, SPGuide)
MAKE_SP_OBJECT_TYPECHECK_FUNCTIONS(SP_IS_GUIDE, SPGuide)
#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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