Cleanup headers

[lyx.git] / src / mathed / MathData.cpp

diff --git a/src/mathed/MathData.cpp b/src/mathed/MathData.cpp
index d242a86f72c2d228c16a6a98b399e9457d4251a9..610a3e20eb64ebae7e237f77baa6c67ccf8ff5bf 100644 (file)
--- a/src/mathed/MathData.cpp
+++ b/src/mathed/MathData.cpp
@@ -27,6 +27,7 @@
 #include "BufferView.h"
 #include "CoordCache.h"
 #include "Cursor.h"
+#include "Dimension.h"
 
 #include "mathed/InsetMathUnknown.h"
 
@@ -37,7 +38,6 @@
 #include "support/docstream.h"
 #include "support/gettext.h"
 #include "support/lassert.h"
-#include "support/lyxalgo.h"
 
 #include <cstdlib>
 
@@ -47,11 +47,18 @@ namespace lyx {
 
 
 MathData::MathData(Buffer * buf, const_iterator from, const_iterator to)
-       : base_type(from, to), minasc_(0), mindes_(0), slevel_(0),
-         sshift_(0), kerning_(0), buffer_(buf)
+       : base_type(from, to), buffer_(buf)
 {}
 
 
+void MathData::setBuffer(Buffer & b)
+{
+       buffer_ = &b;
+       for (MathAtom & at : *this)
+               at.nucleus()->setBuffer(b);
+}
+
+
 MathAtom & MathData::operator[](pos_type pos)
 {
        LBUFERR(pos < size());
@@ -259,13 +266,14 @@ bool isInside(DocIterator const & it, MathData const & ar,
 #endif
 
 
-void MathData::metrics(MetricsInfo & mi, Dimension & dim) const
+void MathData::metrics(MetricsInfo & mi, Dimension & dim, bool tight) const
 {
        frontend::FontMetrics const & fm = theFontMetrics(mi.base.font);
-       dim = fm.dimension('I');
-       int xascent = fm.dimension('x').ascent();
-       if (xascent >= dim.asc)
-               xascent = (2 * dim.asc) / 3;
+       BufferView * bv = mi.base.bv;
+       int const Iascent = fm.dimension('I').ascent();
+       int xascent = fm.xHeight();
+       if (xascent >= Iascent)
+               xascent = (2 * Iascent) / 3;
        minasc_ = xascent;
        mindes_ = (3 * xascent) / 4;
        slevel_ = (4 * xascent) / 5;
@@ -273,11 +281,32 @@ void MathData::metrics(MetricsInfo & mi, Dimension & dim) const
 
        MathRow mrow(mi, this);
        mrow.metrics(mi, dim);
-       mrow_cache_[mi.base.bv] = mrow;
-       kerning_ = mrow.kerning(mi.base.bv);
 
-       // Cache the dimension.
-       mi.base.bv->coordCache().arrays().add(this, dim);
+       // Set a minimal ascent/descent for the cell
+       if (tight)
+               // FIXME: this is the minimal ascent seen empirically, check
+               // what the TeXbook says.
+               dim.asc = max(dim.asc, fm.xHeight());
+       else {
+               dim.asc = max(dim.asc, fm.maxAscent());
+               dim.des = max(dim.des, fm.maxDescent());
+       }
+
+       // This is one of the the few points where the drawing font is known,
+       // so that we can set the caret vertical dimensions.
+       mrow.caret_dim.asc = min(dim.asc, fm.maxAscent());
+       mrow.caret_dim.des = min(dim.des, fm.maxDescent());
+       mrow.caret_dim.wid = fm.lineWidth();
+
+       /// do the same for math cells linearized in the row
+       MathRow caret_row = MathRow(mrow.caret_dim);
+       for (auto const & e : mrow)
+               if (e.type == MathRow::BEGIN && e.ar)
+                       bv->setMathRow(e.ar, caret_row);
+
+       // Cache row and dimension.
+       bv->setMathRow(this, mrow);
+       bv->coordCache().arrays().add(this, dim);
 }
 
 
@@ -294,7 +323,7 @@ void MathData::drawSelection(PainterInfo & pi, int const x, int const y) const
        MathData const & c1 = inset->cell(s1.idx());
 
        if (s1.idx() == s2.idx() && &c1 == this) {
-               // selection indide cell
+               // selection inside cell
                Dimension const dim = bv->coordCache().getArrays().dim(&c1);
                int const beg = c1.pos2x(bv, s1.pos());
                int const end = c1.pos2x(bv, s2.pos());
@@ -321,7 +350,7 @@ void MathData::draw(PainterInfo & pi, int const x, int const y) const
        setXY(*pi.base.bv, x, y);
 
        drawSelection(pi, x, y);
-       MathRow const & mrow = mrow_cache_[pi.base.bv];
+       MathRow const & mrow = pi.base.bv->mathRow(this);
        mrow.draw(pi, x, y);
 }
 
@@ -344,20 +373,26 @@ void MathData::drawT(TextPainter & pain, int x, int y) const
        // FIXME: Abdel 16/10/2006
        // This drawT() method is never used, this is dead code.
 
-       for (const_iterator it = begin(), et = end(); it != et; ++it) {
-               (*it)->drawT(pain, x, y);
-               //x += (*it)->width_;
+       for (auto const & it : *this) {
+               it->drawT(pain, x, y);
+               //x += it->width_;
                x += 2;
        }
 }
 
 
-void MathData::updateBuffer(ParIterator const & it, UpdateType utype)
+int MathData::kerning(BufferView const * bv) const
+{
+       return  bv->mathRow(this).kerning(bv);
+}
+
+
+void MathData::updateBuffer(ParIterator const & it, UpdateType utype, bool const deleted)
 {
        // pass down
        for (size_t i = 0, n = size(); i != n; ++i) {
                MathAtom & at = operator[](i);
-               at.nucleus()->updateBuffer(it, utype);
+               at.nucleus()->updateBuffer(it, utype, deleted);
        }
 }
 
@@ -932,6 +967,18 @@ MathClass MathData::mathClass() const
 }
 
 
+MathClass MathData::lastMathClass() const
+{
+       MathClass res = MC_ORD;
+       for (MathAtom const & at : *this) {
+               MathClass mc = at->mathClass();
+               if (mc != MC_UNKNOWN)
+                       res = mc;
+       }
+       return res;
+}
+
+
 ostream & operator<<(ostream & os, MathData const & ar)
 {
        odocstringstream oss;