X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FRow.h;h=f0c5b72ca1125aaef0c6ee784c7747ac0866fb4c;hb=a879bc257519f030322d8d99643ccf3e52c1b62e;hp=2282c82d93eac822105e8b2317f8f442117dbffb;hpb=443a45342743615977b024ebfbaf1ecf1af7ddc8;p=lyx.git

diff --git a/src/Row.h b/src/Row.h
index 2282c82d93..f0c5b72ca1 100644
--- a/src/Row.h
+++ b/src/Row.h
@@ -46,8 +46,6 @@ public:
 		 * correspond to any paragraph contents
 		 */
 		VIRTUAL,
-		// A stretchable space, basically
-		SEPARATOR,
 		// An inset
 		INSET,
 		// Some spacing described by its width, not a string
@@ -63,19 +61,38 @@ public:
 			: 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;
@@ -90,10 +107,10 @@ public:
 		// 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;
@@ -146,13 +163,23 @@ public:
 	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);
@@ -163,9 +190,6 @@ public:
 	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);
 
 	///
@@ -186,6 +210,10 @@ public:
 	///
 	bool empty() const { return elements_.empty(); }
 	///
+	Element & front() { return elements_.front(); }
+	///
+	Element const & front() const { return elements_.front(); }
+	///
 	Element & back() { return elements_.back(); }
 	///
 	Element const & back() const { return elements_.back(); }
@@ -196,11 +224,12 @@ public:
 	/**
 	 * 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
+	 * \return true if the row has been shortened.
 	 */
-	void shorten_if_needed(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
@@ -216,12 +245,12 @@ public:
 
 	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;
 	///