// -*- C++ -*-
-/*
- * Purpose: A general purpose resizable array.
- * Author: Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
- * Created: January 1996
- *
- * Dependencies: None (almost)
- *
- * Copyright: 1996, Alejandro Aguilar Sierra
- * 1997 The LyX Team!
- *
+/**
* You are free to use and modify this code under the terms of
* the GNU General Public Licence version 2 or later.
*/
+/** \class MathArray
+ \brief Low level container for math insets
+ * \author Alejandro Aguilar Sierra
+ * \author André Pönitz
+ * \author Lars Gullik Bjønnes
+ *
+ * Full author contact details are available in file CREDITS
+ \version February 2001
+ */
+
#ifndef MATH_DATA_H
#define MATH_DATA_H
#include <vector>
#include "math_atom.h"
+#include "dimension.h"
class MathMacro;
class LaTeXFeatures;
class ReplaceData;
+class MetricsInfo;
+class PainterInfo;
+class TextMetricsInfo;
+class TextPainter;
-#ifdef __GNUG__
-#pragma interface
-#endif
-
-
-/** \class MathArray
- \brief Low level container for math insets
-
- \author Alejandro Aguilar Sierra
- \author André Pönitz
- \author Lars Gullik Bjønnes
- \version February 2001
- */
-
class MathArray : private std::vector<MathAtom> {
public:
/// re-use inhertited stuff
///
typedef size_type idx_type;
typedef size_type pos_type;
-
+
public:
///
- MathArray() {}
+ MathArray();
///
MathArray(const_iterator from, const_iterator to);
///
MathAtom & operator[](pos_type);
/// checked read access
MathAtom const & operator[](pos_type) const;
+ /// rebuild cached metrics information
+ void metrics(MetricsInfo & mi) const;
+ /// rebuild cached metrics information
+ void metrics(MetricsInfo & mi, Dimension & dim) const;
+ /// redraw cell using cache metrics information
+ void draw(PainterInfo & pi, int x, int y) const;
+ /// rebuild cached metrics information
+ void metricsT(TextMetricsInfo const & mi, Dimension & dim) const;
+ /// redraw cell using cache metrics information
+ void drawT(TextPainter & pi, int x, int y) const;
+ /// mark cell for re-drawing
+ void touch() const;
+
+ /// access to cached x coordinate of last drawing
+ int xo() const { return xo_; }
+ /// access to cached y coordinate of last drawing
+ int yo() const { return yo_; }
+ /// access to cached x coordinate of mid point of last drawing
+ int xm() const { return xo_ + dim_.wid / 2; }
+ /// access to cached y coordinate of mid point of last drawing
+ int ym() const { return yo_ + (dim_.des - dim_.asc) / 2; }
+ /// write access to coordinate;
+ void setXY(int x, int y) const;
+ /// returns x coordinate of given position in the array
+ int pos2x(size_type pos) const;
+ /// returns position of given x coordinate
+ int pos2x(size_type pos, int glue) const;
+ /// returns position of given x coordinate
+ size_type x2pos(int pos) const;
+ /// returns position of given x coordinate fstarting from a certain pos
+ size_type x2pos(int targetx, int glue) const;
+ /// returns distance of this cell to the point given by x and y
+ // assumes valid position and size cache
+ int dist(int x, int y) const;
+
+ /// ascent of this cell above the baseline
+ int ascent() const { return dim_.asc; }
+ /// descent of this cell below the baseline
+ int descent() const { return dim_.des; }
+ /// height of the cell
+ int height() const { return dim_.asc + dim_.des; }
+ /// width of this cell
+ int width() const { return dim_.wid; }
+ /// dimensions of cell
+ Dimension const & dim() const { return dim_; }
+ /// dimensions of cell
+ void setDim(Dimension const & d) const { dim_ = d; }
+ /// bounding box of this cell
+ void boundingBox(int & xlow, int & xhigh, int & ylow, int & yhigh);
+ /// gives center coordinates
+ void center(int & x, int & y) const;
+ /// adjust (x,y) to point on boundary on a straight line from the center
+ void towards(int & x, int & y) const;
+ /// clean up if necessary
+ void notifyCursorLeaves();
+
private:
/// is this an exact match at this position?
bool find1(MathArray const & ar, size_type pos) const;
+
+ /// cached dimensions of cell
+ mutable Dimension dim_;
+ /// cached x coordinate of last drawing
+ mutable int xo_;
+ /// cached y coordinate of last drawing
+ mutable int yo_;
+ /// cached cleaness of cell
+ mutable bool clean_;
+ /// cached draw status of cell
+ mutable bool drawn_;
};
///