1 files changed, 76 insertions, 0 deletions
diff --git a/include/ixion/model_iterator.hpp b/include/ixion/model_iterator.hpp
new file mode 100644
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+++ b/include/ixion/model_iterator.hpp
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_IXION_MODEL_ITERATOR_HPP
+#define INCLUDED_IXION_MODEL_ITERATOR_HPP
+
+#include "types.hpp"
+
+#include <memory>
+#include <iosfwd>
+#include <variant>
+
+namespace ixion {
+
+namespace detail { class model_context_impl; }
+class formula_cell;
+struct abs_rc_range_t;
+
+class IXION_DLLPUBLIC model_iterator
+{
+public:
+    class impl;
+
+private:
+    friend class detail::model_context_impl;
+    std::unique_ptr<model_iterator::impl> mp_impl;
+
+    model_iterator(const detail::model_context_impl& cxt, sheet_t sheet, const abs_rc_range_t& range, rc_direction_t dir);
+public:
+
+    struct IXION_DLLPUBLIC cell
+    {
+        using value_type = std::variant<bool, double, string_id_t, const formula_cell*>;
+
+        row_t row;
+        col_t col;
+        celltype_t type;
+        value_type value;
+
+        cell();
+        cell(row_t _row, col_t _col);
+        cell(row_t _row, col_t _col, bool _b);
+        cell(row_t _row, col_t _col, string_id_t _s);
+        cell(row_t _row, col_t _col, double _v);
+        cell(row_t _row, col_t _col, const formula_cell* _f);
+
+        bool operator== (const cell& other) const;
+        bool operator!= (const cell& other) const;
+    };
+
+    model_iterator();
+    model_iterator(const model_iterator&) = delete;
+    model_iterator(model_iterator&& other);
+    ~model_iterator();
+
+    model_iterator& operator= (const model_iterator&) = delete;
+    model_iterator& operator= (model_iterator&& other);
+
+    bool has() const;
+
+    void next();
+
+    const cell& get() const;
+};
+
+IXION_DLLPUBLIC std::ostream& operator<< (std::ostream& os, const model_iterator::cell& c);
+
+} // namespace ixion
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */