* correspond to any paragraph contents
*/
VIRTUAL,
- // A stretchable space, basically
- SEPARATOR,
// An inset
INSET,
// Some spacing described by its width, not a string
: type(t), pos(p), endpos(p + 1), inset(0),
extra(0), font(f), change(ch), final(false) {}
- // returns total width of element, including separator overhead
- double width() const { return dim.wid + extra; };
- // returns position in pixels (from the left) of position
- // \param i in the row element
- double pos2x(pos_type const i) const;
+ // 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 position in pixels (from the left) of position
+ * \param i in the row element.
+ */
+ double pos2x(pos_type const i) const;
/** Return character position that is the closest to
* pixel position \param x. The value \param x is
- * rounded to the actual pixel position. If \param
- * short is true, the pixel value is rounded by
- * default.
+ * adjusted to the actual pixel position.
*/
- pos_type x2pos(double &x, bool low = false) const;
+ pos_type x2pos(int &x) const;
+ /** Break the element if possible, so that its width is less
+ * than \param w. Returns true on success. When \param force
+ * is true, the string is cut at any place, other wise it
+ * respects the row breaking rules of characters.
+ */
+ bool breakAt(int w, bool force);
+
+ // Returns the position on left side of the element.
+ pos_type left_pos() const;
+ // Returns the position on right side of the element.
+ pos_type right_pos() const;
+
+ //
+ 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;
// Non-zero only if element is an inset
Inset const * inset;
- // Only non-null for separator elements
+ // Only non-null for justified rows
double extra;
- // Non-empty if element is a string or separator
+ // Non-empty if element is a string or is virtual
docstring str;
//
Font font;
Dimension & dimension() { return dim_; }
///
int height() const { return dim_.height(); }
- ///
+ /// The width of the row, including the left margin, but not the right one.
int width() const { return dim_.wid; }
///
int ascent() const { return dim_.asc; }
///
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);
+
///
void add(pos_type pos, Inset const * ins, Dimension const & dim,
Font const & f, Change const & ch);
void addVirtual(pos_type pos, docstring const & s,
Font const & f, Change const & ch);
///
- void addSeparator(pos_type pos, char_type const c,
- Font const & f, Change const & ch);
- ///
void addSpace(pos_type pos, int width, Font const & f, Change const & ch);
///
/**
* if row width is too large, remove all elements after last
* separator and update endpos if necessary. If all that
- * rename is a large word, cut it to \param width.
+ * 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
*/
- void shorten_if_needed(pos_type const body_pos, int const width);
+ void shortenIfNeeded(pos_type const body_pos, int const width);
/**
* If last element of the row is a string, compute its width
friend std::ostream & operator<<(std::ostream & os, Row const & row);
- /// width of a separator (i.e. space)
+ /// additional width for separators in justified rows (i.e. space)
double separator;
/// width of hfills in the label
double label_hfill;
- /// the x position of the row (left margin)
- double x;
+ /// the left margin position of the row
+ int left_margin;
/// the right margin of the row
int right_margin;
///