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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef INKSCAPE_LIVEPATHEFFECT_PARAMETER_PATH_H
#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_PATH_H
/*
* Inkscape::LivePathEffectParameters
*
* Copyright (C) Johan Engelen 2007 <j.b.c.engelen@utwente.nl>
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include <glib.h>
#include <2geom/path.h>
#include "live_effects/parameter/parameter.h"
#include "live_effects/parameter/path-reference.h"
#include <cstddef>
#include <sigc++/sigc++.h>
namespace Inkscape {
namespace LivePathEffect {
class PathParam : public Parameter {
public:
PathParam ( const Glib::ustring& label,
const Glib::ustring& tip,
const Glib::ustring& key,
Inkscape::UI::Widget::Registry* wr,
Effect* effect,
const gchar * default_value = "M0,0 L1,1");
~PathParam() override;
Geom::PathVector const & get_pathvector() const;
void reload();
Geom::Affine get_relative_affine();
Geom::Piecewise<Geom::D2<Geom::SBasis> > const & get_pwd2();
Gtk::Widget * param_newWidget() override;
std::vector<SPObject *> param_get_satellites() override;
bool param_readSVGValue(const gchar * strvalue) override;
Glib::ustring param_getSVGValue() const override;
Glib::ustring param_getDefaultSVGValue() const override;
void param_set_default() override;
void param_update_default(const gchar * default_value) override;
void param_set_and_write_default();
void set_new_value (Geom::PathVector const &newpath, bool write_to_svg);
void set_new_value (Geom::Piecewise<Geom::D2<Geom::SBasis> > const &newpath, bool write_to_svg);
void set_buttons(bool edit_button, bool copy_button, bool paste_button, bool link_button);
void setUpdating(bool updating) {_updating = updating;};
void param_editOncanvas(SPItem * item, SPDesktop * dt) override;
void param_setup_nodepath(Inkscape::NodePath::Path *np) override;
void addCanvasIndicators(SPLPEItem const* lpeitem, std::vector<Geom::PathVector> &hp_vec) override;
void param_transform_multiply(Geom::Affine const &postmul, bool set) override;
void setFromOriginalD(bool from_original_d){ _from_original_d = from_original_d; };
sigc::signal <void> signal_path_pasted;
sigc::signal <void> signal_path_changed;
bool changed; /* this gets set whenever the path is changed (this is set to true, and then the signal_path_changed signal is emitted).
* the user must set it back to false if she wants to use it sensibly */
SPObject * getObject() const { if (ref.isAttached()) {return ref.getObject();} return nullptr;}
void paste_param_path(const char *svgd);
void on_paste_button_click();
void linkitem(Glib::ustring pathid);
ParamType paramType() const override { return ParamType::PATH; };
protected:
Geom::PathVector _pathvector; // this is primary data storage, since it is closest to SVG.
Geom::Piecewise<Geom::D2<Geom::SBasis> > _pwd2; // secondary, hence the bool must_recalculate_pwd2
bool must_recalculate_pwd2; // set when _pathvector was updated, but _pwd2 not
void ensure_pwd2(); // ensures _pwd2 is up to date
gchar * href; // contains link to other object, e.g. "#path2428", NULL if PathParam contains pathdata itself
PathReference ref;
friend class LPEFillBetweenStrokes;
friend class LPEPatternAlongPath;
friend class LPEBendPath;
friend class LPECurveStitch;
friend class LPEAttachPath;
friend class LPEEnvelope;
friend class LPEBoundingBox;
friend class LPEInterpolate;
friend class LPEVonKoch;
sigc::connection ref_changed_connection;
sigc::connection linked_delete_connection;
sigc::connection linked_modified_connection;
sigc::connection linked_transformed_connection;
void ref_changed(SPObject *old_ref, SPObject *new_ref);
void unlink();
void start_listening(SPObject * to);
void quit_listening();
void linked_delete(SPObject *deleted);
void linked_modified(SPObject *linked_obj, guint flags);
void linked_transformed(Geom::Affine const *rel_transf, SPItem *moved_item);
virtual void linked_modified_callback(SPObject *linked_obj, guint flags);
virtual void linked_transformed_callback(Geom::Affine const * rel_transf, SPItem * /*moved_item*/) {};
void on_edit_button_click();
void on_copy_button_click();
void on_link_button_click();
void emit_changed();
gchar * defvalue;
bool _from_original_d;
private:
bool _edit_button;
bool _copy_button;
bool _paste_button;
bool _link_button;
bool _updating = false;
PathParam(const PathParam&) = delete;
PathParam& operator=(const PathParam&) = delete;
};
} //namespace LivePathEffect
} //namespace Inkscape
#endif
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