#ifndef MSP_GLTK_LIST_H_
#define MSP_GLTK_LIST_H_
+#include <memory>
#include <stdexcept>
#include <typeinfo>
#include <sigc++/signal.h>
GRID
};
+ static constexpr size_t INVALID_INDEX = std::numeric_limits<size_t>::max();
+
class Loader: public DataFile::DerivedObjectLoader<List, Widget::Loader>
{
public:
Loader(List &);
+
private:
void item(const std::string &);
};
public:
DataObserver(List &);
- void item_added(unsigned);
- void item_removed(unsigned);
+ void item_added(std::size_t);
+ void item_removed(std::size_t);
void cleared();
- void refresh_item(unsigned);
+ void refresh_item(std::size_t);
};
public:
virtual ~ItemFactory() = default;
virtual void set_data(const ListData &) = 0;
- virtual Item *create_item(unsigned) const = 0;
+ virtual std::unique_ptr<Item> create_item(std::size_t) const = 0;
};
template<typename I>
const ListDataStore<ValueType> *data;
public:
- TypedItemFactory(const ListData &d)
- { set_data(d); }
+ TypedItemFactory(const ListData &d) { set_data(d); }
void set_data(const ListData &d) override
{
throw incompatible_data(typeid(ValueType));
}
- Item *create_item(unsigned i) const override
+ std::unique_ptr<Item> create_item(std::size_t i) const override
{
- return new I(data->get(i));
+ return std::make_unique<I>(data->get(i));
}
};
struct Row
{
- unsigned first;
+ std::size_t first;
unsigned height;
- Row(unsigned f): first(f), height(0) { }
+ Row(std::size_t f): first(f), height(0) { }
};
public:
- sigc::signal<void, unsigned> signal_item_selected;
+ sigc::signal<void, std::size_t> signal_item_selected;
sigc::signal<void> signal_selection_cleared;
private:
+ std::unique_ptr<ListData> own_data;
ListData *data = nullptr;
- bool own_data = false;
- DataObserver *observer = nullptr;
- ItemFactory *item_factory = nullptr;
+ std::unique_ptr<DataObserver> observer = nullptr;
+ std::unique_ptr<ItemFactory> item_factory = nullptr;
ViewMode view_mode = LIST;
- int sel_index = -1;
- int focus_index = -1;
- unsigned first_row = 0;
- unsigned max_scroll = 0;
+ std::size_t sel_index = INVALID_INDEX;
+ std::size_t focus_index = INVALID_INDEX;
+ std::size_t first_row = 0;
+ std::size_t max_scroll = 0;
unsigned view_rows = 5;
unsigned view_columns = 5;
const Part *items_part = nullptr;
int drag_start_y = 0;
VSlider slider;
- std::vector<Item *> items;
+ std::vector<std::unique_ptr<Item>> items;
std::vector<Row> rows;
+ List(std::unique_ptr<ListData>);
public:
List();
List(ListData &);
- virtual ~List();
const char *get_class() const override { return "list"; }
public:
template<typename I>
- void set_item_type()
- {
- ItemFactory *f = new TypedItemFactory<I>(*data);
- delete item_factory;
- item_factory = f;
- }
+ void set_item_type() { item_factory = std::make_unique<TypedItemFactory<I>>(*data); }
private:
- Item *create_item(unsigned);
+ std::unique_ptr<Item> create_item(std::size_t);
public:
void set_view_mode(ViewMode);
void set_view_size(unsigned, unsigned);
void set_view_all();
- void set_selected_index(int);
+ void set_selected_index(std::size_t);
int get_selected_index() const { return sel_index; }
private:
void set_selected_item(Widget *);
void on_style_change() override;
void move_focus(Navigation, bool);
- void set_focus_index(int);
+ void set_focus_index(std::size_t);
void item_autosize_changed(Item *);
void reposition_items(bool);
- unsigned last_to_first_row(unsigned) const;
- unsigned item_index_to_row(unsigned) const;
+ std::size_t last_to_first_row(std::size_t) const;
+ std::size_t item_index_to_row(std::size_t) const;
void check_view_range();
void scroll_to_focus();
void slider_value_changed(double);
- static void adjust_index(int &, int, int);
+ static void adjust_index(std::size_t &, std::size_t, std::ptrdiff_t);
};
MSPGLTK_API void operator>>(const LexicalConverter &, List::ViewMode &);