Remove hardcoded values

[lyx.git] / src / Row.h

diff --git a/src/Row.h b/src/Row.h
index c0580c0e69a05328d78172051896283c4949b706..7ae9c11b1e3850adc16ccaddf129edd7b382e5cd 100644 (file)
--- a/src/Row.h
+++ b/src/Row.h
@@ -61,11 +61,22 @@ public:
                        : type(t), pos(p), endpos(p + 1), inset(0),
                          extra(0), font(f), change(ch), final(false) {}
 
-               // Return total width of element, including separator overhead
-               double full_width() const { return dim.wid + extra * countSeparators(); }
                // Return the number of separator in the element (only STRING type)
                int countSeparators() const;
 
+               // Return total width of element, including separator overhead
+               // FIXME: Cache this value or the number of expanders?
+               double full_width() const { return dim.wid + extra * countExpanders(); }
+               // Return the number of expanding characters in the element (only STRING
+               // type).
+               int countExpanders() const;
+               // Return the amount of expansion: the number of expanding characters
+               // that get stretched during justification, times the em of the font
+               // (only STRING type).
+               int expansionAmount() const;
+               // set extra proportionally to the font em value.
+               void setExtra(double extra_per_em);
+
                /** Return position in pixels (from the left) of position
                 * \param i in the row element.
                 */
@@ -89,6 +100,10 @@ public:
 
                //
                bool isRTL() const { return font.isVisibleRightToLeft(); }
+               // This is true for virtual elements.
+               // Note that we do not use the type here. The two definitions
+               // should be equivalent
+               bool isVirtual() const { return pos == endpos; }
 
                // The kind of row element
                Type type;
@@ -140,6 +155,10 @@ public:
        void setSelectionAndMargins(DocIterator const & beg,
                DocIterator const & end) const;
 
+       ///
+       void pit(pit_type p) { pit_ = p; }
+       ///
+       pit_type pit() const { return pit_; }
        ///
        void pos(pos_type p) { pos_ = p; }
        ///
@@ -166,10 +185,17 @@ public:
        ///
        int descent() const { return dim_.des; }
 
+       /// The offset of the left-most cursor position on the row
+       int left_x() const;
+       /// The offset of the right-most cursor position on the row
+       int right_x() const;
+
        // Return the number of separators in the row
        int countSeparators() const;
-       // Set the extra spacing for every separator in STRING elements
-       void setSeparatorExtraWidth(double w);
+       // Set the extra spacing for every expanding character in STRING-type
+       // elements.  \param w is the total amount of extra width for the row to be
+       // distributed among expanders.  \return false if the justification fails.
+       bool setExtraWidth(int w);
 
        ///
        void add(pos_type pos, Inset const * ins, Dimension const & dim,
@@ -218,8 +244,9 @@ public:
         * remains is a large word, cut it to \param width.
         * \param body_pos minimum amount of text to keep.
         * \param width maximum width of the row
+        * \return true if the row has been shortened.
         */
-       void shortenIfNeeded(pos_type const body_pos, int const width);
+       bool shortenIfNeeded(pos_type const body_pos, int const width);
 
        /**
         * If last element of the row is a string, compute its width
@@ -276,6 +303,8 @@ private:
        mutable bool changed_;
        /// CRC of row contents.
        mutable size_type crc_;
+       /// Index of the paragraph that contains this row
+       pit_type pit_;
        /// first pos covered by this row
        pos_type pos_;
        /// one behind last pos covered by this row