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#pragma once
#include <AK/AKString.h>
#include <AK/Badge.h>
#include <AK/Function.h>
#include <AK/HashTable.h>
#include <LibGUI/GModelIndex.h>
#include <LibGUI/GVariant.h>
#include <SharedGraphics/TextAlignment.h>
class GTableView;
class GModelNotification {
public:
enum Type {
Invalid = 0,
ModelUpdated,
};
explicit GModelNotification(Type type, const GModelIndex& index = GModelIndex())
: m_type(type)
, m_index(index)
{
}
Type type() const { return m_type; }
GModelIndex index() const { return m_index; }
private:
Type m_type { Invalid };
GModelIndex m_index;
};
class GTableModel {
public:
struct ColumnMetadata {
int preferred_width { 0 };
TextAlignment text_alignment { TextAlignment::CenterLeft };
};
virtual ~GTableModel();
virtual int row_count() const = 0;
virtual int column_count() const = 0;
virtual String row_name(int) const { return { }; }
virtual String column_name(int) const { return { }; }
virtual ColumnMetadata column_metadata(int) const { return { }; }
virtual GVariant data(const GModelIndex&) const = 0;
virtual void update() = 0;
virtual void activate(const GModelIndex&) { }
bool is_valid(const GModelIndex& index) const
{
return index.row() >= 0 && index.row() < row_count() && index.column() >= 0 && index.column() < column_count();
}
void set_selected_index(const GModelIndex& index) { m_selected_index = index; }
GModelIndex selected_index() const { return m_selected_index; }
void register_view(Badge<GTableView>, GTableView&);
void unregister_view(Badge<GTableView>, GTableView&);
protected:
GTableModel();
void for_each_view(Function<void(GTableView&)>);
void did_update();
private:
HashTable<GTableView*> m_views;
GModelIndex m_selected_index;
};
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