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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef INKSCAPE_LIVEPATHEFFECT_PARAMETER_H
#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_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 "ui/widget/registered-widget.h"
#include <2geom/forward.h>
#include <2geom/pathvector.h>
#include <glibmm/ustring.h>
// In gtk2, this wasn't an issue; we could toss around
// G_MAXDOUBLE and not worry about size allocations. But
// in gtk3, it is an issue: it allocates widget size for the maxmium
// value you pass to it, leading to some insane lengths.
// If you need this to be more, please be conservative about it.
const double SCALARPARAM_G_MAXDOUBLE =
10000000000.0; // TODO fixme: using an arbitrary large number as a magic value seems fragile.
class KnotHolder;
class SPLPEItem;
class SPDesktop;
class SPItem;
namespace Gtk {
class Widget;
}
namespace Inkscape {
namespace NodePath {
class Path;
}
namespace UI {
namespace Widget {
class Registry;
}
} // namespace UI
namespace LivePathEffect {
class Effect;
class Parameter {
public:
Parameter(Glib::ustring label, Glib::ustring tip, Glib::ustring key, Inkscape::UI::Widget::Registry *wr,
Effect *effect);
virtual ~Parameter() = default;
;
Parameter(const Parameter &) = delete;
Parameter &operator=(const Parameter &) = delete;
virtual bool param_readSVGValue(const gchar *strvalue) = 0; // returns true if new value is valid / accepted.
virtual Glib::ustring param_getSVGValue() const = 0;
virtual Glib::ustring param_getDefaultSVGValue() const = 0;
virtual void param_widget_is_visible(bool is_visible) { widget_is_visible = is_visible; }
virtual void param_widget_is_enabled(bool is_enabled) { widget_is_enabled = is_enabled; }
void write_to_SVG();
virtual void param_set_default() = 0;
virtual void param_update_default(const gchar *default_value) = 0;
// This creates a new widget (newed with Gtk::manage(new ...);)
virtual Gtk::Widget *param_newWidget() = 0;
virtual Glib::ustring *param_getTooltip() { return ¶m_tooltip; };
// overload these for your particular parameter to make it provide knotholder handles or canvas helperpaths
virtual bool providesKnotHolderEntities() const { return false; }
virtual void addKnotHolderEntities(KnotHolder * /*knotholder*/, SPItem * /*item*/){};
virtual void addCanvasIndicators(SPLPEItem const * /*lpeitem*/, std::vector<Geom::PathVector> & /*hp_vec*/){};
virtual void param_editOncanvas(SPItem * /*item*/, SPDesktop * /*dt*/){};
virtual void param_setup_nodepath(Inkscape::NodePath::Path * /*np*/){};
virtual void param_transform_multiply(Geom::Affine const & /*postmul*/, bool set){};
Glib::ustring param_key;
Glib::ustring param_tooltip;
Inkscape::UI::Widget::Registry *param_wr;
Glib::ustring param_label;
bool oncanvas_editable;
bool widget_is_visible;
bool widget_is_enabled;
protected:
Effect *param_effect;
void param_write_to_repr(const char *svgd);
};
class ScalarParam : public Parameter {
public:
ScalarParam(const Glib::ustring &label, const Glib::ustring &tip, const Glib::ustring &key,
Inkscape::UI::Widget::Registry *wr, Effect *effect, gdouble default_value = 1.0);
~ScalarParam() override;
ScalarParam(const ScalarParam &) = delete;
ScalarParam &operator=(const ScalarParam &) = delete;
bool param_readSVGValue(const gchar *strvalue) override;
Glib::ustring param_getSVGValue() const override;
Glib::ustring param_getDefaultSVGValue() const override;
void param_transform_multiply(Geom::Affine const &postmul, bool set) override;
void param_set_default() override;
void param_update_default(gdouble default_value);
void param_update_default(const gchar *default_value) override;
void param_set_value(gdouble val);
void param_make_integer(bool yes = true);
void param_set_range(gdouble min, gdouble max);
void param_set_digits(unsigned digits);
void param_set_increments(double step, double page);
void addSlider(bool add_slider_widget) { add_slider = add_slider_widget; };
double param_get_max() { return max; };
double param_get_min() { return min; };
void param_set_undo(bool set_undo);
Gtk::Widget *param_newWidget() override;
inline operator gdouble() const { return value; };
protected:
gdouble value;
gdouble min;
gdouble max;
bool integer;
gdouble defvalue;
unsigned digits;
double inc_step;
double inc_page;
bool add_slider;
bool _set_undo;
};
} // namespace LivePathEffect
} // namespace Inkscape
#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:textwidth=99 :
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