+// -*- C++ -*-
/**
* \file types.h
* This file is part of LyX, the document processor.
* indices wile trying to stay compatible with types used
* by the standard containers.
*
- * \author André Pönitz
+ * \author André Pönitz
*
- * Full author contact details are available in file CREDITS
+ * Full author contact details are available in file CREDITS.
*/
#ifndef LYX_TYPES_H
#define LYX_TYPES_H
-// this probably could be improved by using <cstddef>...
-#include <vector>
+#include <cstddef>
-namespace lyx
-{
- /// a type for positions used in paragraphs
- // needs to be signed for a while to hold the special value -1 that is
- // used there...
- typedef std::vector<char>::difference_type pos_type;
+namespace lyx {
+ /*!
+ * A type for positions used in paragraphs.
+ * Each position is either occupied by a single character or an inset.
+ * For insets, the placeholder META_INSET is stored in the paragraph
+ * text, and the actual insets are maintained separately.
+ */
+ // FIXME: should be unsigned, but needs to be signed for a while to
+ // hold the special value -1 that is used somewhere
+ // Note that the signed property is also used in loops counting to zero.
+ typedef ptrdiff_t pos_type;
+
+ /*!
+ * A type for paragraph offsets.
+ * This is used to address paragraphs in ParagraphList, Text etc.
+ */
+ // FIXME: should be unsigned as well.
+ // however, simply changing it breaks a downward loop somewhere...
+ typedef ptrdiff_t pit_type;
+
+ /// a type for the nesting depth of a paragraph
+ typedef size_t depth_type;
// set this to '0' if you want to have really safe types
#if 1
/// a type for sizes
- typedef std::vector<char>::size_type size_type;
-
- /// a type used for numbering text classes
- // used to be LyXTextClassList::size_type
- typedef std::vector<char>::size_type textclass_type;
+ typedef size_t size_type;
#else
struct size_type {
///
- typedef std::vector<char>::size_type base_type;
+ typedef size_t base_type;
///
size_type(base_type t) { data_ = t; }
///
operator base_type() const { return data_; }
///
- private:
+ private:
base_type data_;
};
- struct textclass_type {
- ///
- typedef std::vector<char>::size_type base_type;
- ///
- textclass_type(base_type t) { data_ = t; }
+#endif
+
+ ///
+ enum word_location {
+ /// the word around the cursor, only if the cursor is
+ /// not at a boundary
+ WHOLE_WORD_STRICT,
+ // the word around the cursor
+ WHOLE_WORD,
+ /// the word begining from the cursor position
+ PARTIAL_WORD,
+ /// the word around the cursor or before the cursor
+ PREVIOUS_WORD,
+ /// the next word (not yet used)
+ NEXT_WORD
+ };
+
+ ///
+ enum PageSides {
///
- operator base_type() const { return data_; }
+ OneSide,
///
- private:
- base_type data_;
+ TwoSides
};
-
-#endif
-
-}
+} // namespace lyx
#endif // LYX_TYPES_H