Bibliotheca/src/BookTile.hpp

#pragma once
#include "Book.hpp"
#include <gtkmm/box.h>
#include <gtkmm/picture.h>
#include <gtkmm/label.h>
#include <gtkmm/overlay.h>
#include <gtkmm/gestureclick.h>
#include <gtkmm/eventcontrollermotion.h>

/**
 * @brief Compact widget that renders a single Book cover and title.
 *
 * BookTile is used by @ref BookShelf's GridView factory; it presents the
 * cover art (texture if already loaded, otherwise lazy load from disk) and
 * a caption, and forwards click gestures via @ref signalActivated().
 */
class BookTile : public Gtk::Box {
public:
  BookTile(const Book& book, int coverSize = 128);

  void setBook(const Book& book); // for updates
  const Book& getBook() const noexcept { return m_book; }

  void setSelected(bool selected);

  /// Emitted when the tile is clicked (single click).
  sigc::signal<void(const Book&)>& signalActivated() { return m_signalActivated; }

private:
  void rebuild();
  void onActivated();

  Book m_book;
  int m_coverSize = 128;

  Gtk::Overlay m_overlay;
  Gtk::Picture m_cover;
  Gtk::Label   m_title;

  Glib::RefPtr<Gtk::GestureClick> m_click;
  Glib::RefPtr<Gtk::EventControllerMotion> m_hover;
  bool m_selected = false;

  sigc::signal<void(const Book&)> m_signalActivated;
};