/* Echo Media Player * Copyright (C) 2008 Shane O'Connell * * [ The original file includes a copyright header in this location describing * the file as being released under the terms of the GNU General Public * License. It has been removed in order to display the file as part of the * archive. ] */ #ifndef FILEBROWSERMODEL_H_ #define FILEBROWSERMODEL_H_ #include <list> #include <gtkmm.h> #include <giomm.h> class FileBrowserModel : public Glib::Object, public Gtk::TreeModel { // ----------------------- Constructor ----------------------- public: static Glib::RefPtr<FileBrowserModel> create(const std::string& uri) { return Glib::RefPtr<FileBrowserModel>(new FileBrowserModel(uri)); } protected: FileBrowserModel(const std::string& uri); virtual ~FileBrowserModel() {} // ----------------------- Column information ----------------------- public: class Columns : public Gtk::TreeModelColumnRecord { public: Gtk::TreeModelColumn<Glib::ustring> filename; Gtk::TreeModelColumn<Glib::RefPtr<Gio::Icon> > icon; Columns() { add(filename); add(icon); } }; const Columns& get_columns() const { return m_columns; } protected: Columns m_columns; // ----------------------- Internal filesystem representation ----------------------- protected: class Node { public: Node(Node* parent, int index, Glib::ustring display_name, std::string uri, bool is_directory, Glib::RefPtr<Gio::Icon> icon) : m_parent(parent), m_index(index), m_display_name(display_name), m_uri(uri), m_is_directory(is_directory), m_icon(icon), m_children_known(!is_directory) {} Node* get_parent() const { return m_parent; } int get_index() const { return m_index; } const Glib::ustring& get_display_name() const { return m_display_name; } const std::string& get_uri() const { return m_uri; } bool is_directory() const { return m_is_directory; } Glib::RefPtr<Gio::Icon> get_icon() const { return m_icon; } int get_num_children(); Node* get_child(int index); bool operator<(const Node& otherNode) const; private: void add_children(); Node* m_parent; int m_index; Glib::ustring m_display_name; std::string m_uri; bool m_is_directory; Glib::RefPtr<Gio::Icon> m_icon; std::vector<Node> m_children; bool m_children_known; }; Node* m_root_node; // ----------------------- TreeModel interface ----------------------- protected: int m_stamp; // Used to invalidate all old iters when model updated // TODO also implement the iter_ref/iter_unref for performance virtual GType get_column_type_vfunc(int index) const; virtual void get_value_vfunc(const Gtk::TreeIter& iter, int column, Glib::ValueBase& value) const; virtual bool get_iter_vfunc(const Gtk::TreePath& path, Gtk::TreeIter& iter) const; virtual Gtk::TreePath get_path_vfunc(const Gtk::TreeIter& iter) const; virtual bool iter_next_vfunc(const Gtk::TreeIter& iter, Gtk::TreeIter& iter_next) const; virtual int iter_n_children_vfunc(const Gtk::TreeIter& iter) const; virtual bool iter_nth_child_vfunc(const Gtk::TreeIter& parent, int n, Gtk::TreeIter& iter) const; virtual bool iter_nth_root_child_vfunc (int n, Gtk::TreeIter& iter) const; virtual bool iter_parent_vfunc(const Gtk::TreeIter& child, Gtk::TreeIter& iter) const; virtual bool iter_is_valid (const Gtk::TreeIter& iter) const { return iter.get_stamp() == m_stamp; } virtual bool iter_children_vfunc(const Gtk::TreeIter& parent, Gtk::TreeIter& iter) const { return iter_nth_child_vfunc(parent, 0, iter); } virtual bool iter_has_child_vfunc(const Gtk::TreeIter& iter) const { return (iter_n_children_vfunc(iter) > 0); } virtual int iter_n_root_children_vfunc() const { return m_root_node->get_num_children(); } virtual int get_n_columns_vfunc() const { return get_columns().size(); } virtual Gtk::TreeModelFlags get_flags_vfunc() const { return Gtk::TreeModelFlags(0); } }; #endif /* FILEBROWSERMODEL_H_ */