X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FRow.h;h=a51e3ceb912cefef657b80c71a83ddd3238d929f;hb=44cdffa39e9160bde46d824f1915f9ef3084b53e;hp=9039ff8860e9d40c2b52cd7b817de8bec8229f8b;hpb=9c55af4a223ce4db29d643251109e245665344bd;p=lyx.git diff --git a/src/Row.h b/src/Row.h index 9039ff8860..a51e3ceb91 100644 --- a/src/Row.h +++ b/src/Row.h @@ -29,18 +29,6 @@ namespace lyx { class DocIterator; class Inset; -/** - * FIXME: Change Row object to operate only on integers and not doubles. - * - * This use of double is only useful to distribute the extra - * horizontal space between separators in justified text. If we do - * integer arithmetic, then it is possible to have two groups of - * separators, with size s or s+1. Then strings can be drawn without - * cutting at separators in justfied text, as it is done in - * non-justified text. This will improve performance. - */ - - /** * An on-screen row of text. A paragraph is broken into a RowList for * display. Each Row contains a tokenized description of the contents @@ -58,8 +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 @@ -76,7 +62,10 @@ public: extra(0), font(f), change(ch), final(false) {} // Return total width of element, including separator overhead - double full_width() const { return dim.wid + extra; }; + 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. */ @@ -86,16 +75,25 @@ public: * adjusted to the actual pixel position. */ pos_type x2pos(int &x) const; - /** Break the element if possible, so that its width is - * less then \param w. Returns true on success. + /** 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 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; // position of the element in the paragraph @@ -109,10 +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; @@ -172,6 +170,11 @@ public: /// int descent() const { return dim_.des; } + // 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); @@ -182,9 +185,6 @@ 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); /// @@ -239,7 +239,7 @@ 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;