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#pragma once
#include <gtkmm.h>
class DragListBox : public Gtk::ListBox {
public:
DragListBox();
void row_drag_begin(Gtk::Widget *widget, const Glib::RefPtr<Gdk::DragContext> &context);
bool on_drag_motion(const Glib::RefPtr<Gdk::DragContext> &context, gint x, gint y, guint time) override;
void on_drag_leave(const Glib::RefPtr<Gdk::DragContext> &context, guint time) override;
void check_scroll(gint y);
bool scroll();
void on_drag_data_received(const Glib::RefPtr<Gdk::DragContext> &context, int x, int y, const Gtk::SelectionData &selection_data, guint info, guint time) override;
void add_draggable(Gtk::ListBoxRow *widget);
private:
Gtk::ListBoxRow *m_hover_row = nullptr;
Gtk::ListBoxRow *m_drag_row = nullptr;
bool m_top = false;
int m_hover_top = 0;
int m_hover_bottom = 0;
bool m_should_scroll = false;
bool m_scrolling = false;
bool m_scroll_up = false;
constexpr static int SCROLL_STEP_SIZE = 8;
constexpr static int SCROLL_DISTANCE = 30;
constexpr static int SCROLL_DELAY = 50;
const std::vector<Gtk::TargetEntry> m_entries = {
Gtk::TargetEntry("GTK_LIST_BOX_ROW", Gtk::TARGET_SAME_APP, 0),
};
using type_signal_on_drop = sigc::signal<bool, Gtk::ListBoxRow *, int /* new index */>;
type_signal_on_drop m_signal_on_drop;
public:
type_signal_on_drop signal_on_drop(); // return true to prevent drop
};
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