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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef INK_SPINSCALE_H
#define INK_SPINSCALE_H
/*
* Authors:
* Tavmjong Bah <tavmjong@free.fr>
*
* Copyright (C) 2017 Tavmjong Bah
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
/**
A widget that allows entering a numerical value either by
clicking/dragging on a custom Gtk::Scale or by using a
Gtk::SpinButton. The custom Gtk::Scale differs from the stock
Gtk::Scale in that it includes a label to save space and has a
"slow-dragging" mode triggered by the Alt key.
*/
#include <glibmm/ustring.h>
#include <gtkmm/box.h>
#include <gtkmm/scale.h>
#include "scrollprotected.h"
namespace Gtk {
class SpinButton;
}
class InkScale : public Inkscape::UI::Widget::ScrollProtected<Gtk::Scale>
{
using parent_type = ScrollProtected<Gtk::Scale>;
public:
InkScale(Glib::RefPtr<Gtk::Adjustment>, Gtk::SpinButton* spinbutton);
~InkScale() override = default;;
void set_label(Glib::ustring label);
bool on_draw(const::Cairo::RefPtr<::Cairo::Context>& cr) override;
protected:
bool on_button_press_event(GdkEventButton* button_event) override;
bool on_button_release_event(GdkEventButton* button_event) override;
bool on_motion_notify_event(GdkEventMotion* motion_event) override;
private:
double get_fraction();
void set_adjustment_value(double x, bool constrained = false);
Gtk::SpinButton * _spinbutton; // Needed to get placement/text color.
Glib::ustring _label;
bool _dragging;
double _drag_start;
double _drag_offset;
};
class InkSpinScale : public Gtk::Box
{
public:
// Create an InkSpinScale with a new adjustment.
InkSpinScale(double value,
double lower,
double upper,
double step_increment = 1,
double page_increment = 10,
double page_size = 0);
// Create an InkSpinScale with a preexisting adjustment.
InkSpinScale(Glib::RefPtr<Gtk::Adjustment>);
~InkSpinScale() override = default;;
void set_label(Glib::ustring label);
void set_digits(int digits);
int get_digits() const;
void set_focus_widget(GtkWidget *focus_widget);
Glib::RefPtr<Gtk::Adjustment> get_adjustment() { return _adjustment; };
protected:
InkScale* _scale;
Gtk::SpinButton* _spinbutton;
Glib::RefPtr<Gtk::Adjustment> _adjustment;
GtkWidget* _focus_widget = nullptr;
bool on_key_release_event(GdkEventKey* key_event) override;
private:
};
#endif // INK_SPINSCALE_H
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