// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef SEEN_SPIN_BUTTON_TOOL_ITEM_H
#define SEEN_SPIN_BUTTON_TOOL_ITEM_H

#include <gtkmm/toolitem.h>
#include <unordered_map>
#include <utility>

#include "2geom/math-utils.h"

namespace Gtk {
class Box;
class RadioButtonGroup;
class RadioMenuItem;
}

namespace Inkscape {
namespace UI {
namespace Widget {

class SpinButton;

/**
 * \brief A spin-button with a label that can be added to a toolbar
 */
class SpinButtonToolItem : public Gtk::ToolItem
{
private:
    using ValueLabel = std::pair<double, Glib::ustring>;
    using NumericMenuData = std::map<double, Glib::ustring>;

    Glib::ustring  _name;                  ///< A unique ID for the widget (NOT translatable)
    SpinButton    *_btn;                   ///< The spin-button within the widget
    Glib::ustring  _label_text;            ///< A string to use in labels for the widget (translatable)
    double         _last_val = 0.0;        ///< The last value of the adjustment
    bool           _transfer_focus = false; ///< Whether or not to transfer focus

    Gtk::Box    *_hbox;       ///< Horizontal box, to store widgets
    Gtk::Widget *_label;      ///< A text label to describe the setting
    Gtk::Widget *_icon;       ///< An icon to describe the setting

    /** A widget that grabs focus when this one loses it */
    Gtk::Widget * _focus_widget = nullptr;

    // Custom values and labels to add to the numeric popup-menu
    NumericMenuData _custom_menu_data;

    // To show or not to show upper/lower limit of the adjustment
    bool _show_upper_limit = false;
    bool _show_lower_limit = false;

    // sort in decreasing order
    bool _sort_decreasing = false;

    // digits of adjustment
    int _digits;

    // just a wrapper for Geom::decimal_round to simplify calls
    double round_to_precision(double value);

    // Event handlers
    bool on_btn_focus_in_event(GdkEventFocus  *focus_event);
    bool on_btn_focus_out_event(GdkEventFocus *focus_event);
    bool on_btn_key_press_event(GdkEventKey   *key_event);
    bool on_btn_button_press_event(const GdkEventButton *button_event);
    bool on_popup_menu();
    void do_popup_menu(const GdkEventButton *button_event);

    void defocus();
    bool process_tab(int direction);

    void on_numeric_menu_item_toggled(double value, Gtk::RadioMenuItem* button);

    Gtk::Menu * create_numeric_menu();

    Gtk::RadioMenuItem * create_numeric_menu_item(Gtk::RadioButtonGroup *group,
                                                  double                 value,
                                                  const Glib::ustring&   label = "",
                                                  bool                   enable = false);

protected:
    bool on_create_menu_proxy() override;
    void on_grab_focus() override;

public:
    SpinButtonToolItem(const Glib::ustring            name,
                       const Glib::ustring&           label_text,
                       Glib::RefPtr<Gtk::Adjustment>& adjustment,
                       double                         climb_rate = 0.1,
                       int                            digits     = 3);

    void set_all_tooltip_text(const Glib::ustring& text);
    void set_focus_widget(Gtk::Widget *widget);
    void grab_button_focus();

    void set_custom_numeric_menu_data(const std::vector<double>&        values,
                                      const std::vector<Glib::ustring>& labels = std::vector<Glib::ustring>());

    void set_custom_numeric_menu_data(const std::vector<ValueLabel> &value_labels);

    void set_custom_numeric_menu_data(const std::vector<double>&                       values,
                                      const std::unordered_map<double, Glib::ustring>& sparse_labels);

    Glib::RefPtr<Gtk::Adjustment> get_adjustment();
    void set_icon(const Glib::ustring& icon_name);

    // display limits
    void show_upper_limit(bool show = true);
    void show_lower_limit(bool show = true);
    void show_limits     (bool show = true);

    // sorting order
    void sort_decreasing(bool decreasing = true);

    SpinButton *get_spin_button() { return _btn; };
};
} // namespace Widget
} // namespace UI
} // namespace Inkscape
#endif // SEEN_SPIN_BUTTON_TOOL_ITEM_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 :