]> git.lyx.org Git - lyx.git/blobdiff - src/mathed/math_hullinset.C
Jean-Marc's fix for wrong descent
[lyx.git] / src / mathed / math_hullinset.C
index 116f46ce5764ac8b7e21c904c5fe42ca250217db..5d52dfd0bafd282e66a72c1d75dca9ea29bfb344 100644 (file)
@@ -1,12 +1,10 @@
 #include <config.h>
 
-#ifdef __GNUG__
-#pragma implementation
-#endif
 
 #include "math_hullinset.h"
 #include "math_mathmlstream.h"
 #include "math_streamstr.h"
+#include "math_cursor.h"
 #include "math_support.h"
 #include "math_extern.h"
 #include "math_charinset.h"
@@ -28,6 +26,7 @@
 using std::vector;
 using std::max;
 using std::endl;
+using std::pair;
 
 namespace {
 
@@ -37,6 +36,8 @@ namespace {
                        return 3;
                if (type == "align")
                        return 2;
+               if (type == "flalign")
+                       return 2;
                if (type == "alignat")
                        return 2;
                if (type == "xalignat")
@@ -76,6 +77,7 @@ namespace {
                if (s == "xxalignat") return 7;
                if (s == "multline")  return 8;
                if (s == "gather")    return 9;
+               if (s == "flalign")   return 10;
                lyxerr << "unknown hull type '" << s << "'\n";
                return 0;
        }
@@ -150,7 +152,7 @@ int MathHullInset::defaultColSpace(col_type col)
                return 0;
        if (type_ == "xalignat")
                return (col & 1) ? 20 : 0;
-       if (type_ == "xxalignat")
+       if (type_ == "xxalignat" || type_ == "flalign")
                return (col & 1) ? 40 : 0;
        return 0;
 }
@@ -191,7 +193,7 @@ void MathHullInset::metrics(MathMetricsInfo & mi) const
        int asc = 0;
        int des = 0;
        math_font_max_dim(mi.base.font, asc, des);
-       dim_.a = max(dim_.a,  asc);
+       dim_.a = max(dim_.a, asc);
        dim_.d = max(dim_.d, des);
 
        // for markers
@@ -277,6 +279,7 @@ bool MathHullInset::ams() const
 {
        return
                type_ == "align" ||
+               type_ == "flalign" ||
                type_ == "multline" ||
                type_ == "gather" ||
                type_ == "alignat" ||
@@ -352,22 +355,20 @@ void MathHullInset::header_write(WriteStream & os) const
                        os << "\\[\n";
        }
 
-       else if (type_ == "eqnarray" || type_ == "align")
+       else if (type_ == "eqnarray" || type_ == "align" || type_ == "flalign"
+                || type_ == "gather" || type_ == "multline")
                        os << "\\begin{" << type_ << star(n) << "}\n";
 
-       else if (type_ == "alignat" || type_ == "xalignat") 
-               os << "\\begin{" << type_ << star(n) << "}"
-                 << "{" << static_cast<unsigned int>((ncols() + 1)/2) << "}\n";
-       else if (type_ == "xxalignat") 
-               os << "\\begin{" << type_ << "}"
-                 << "{" << static_cast<unsigned int>((ncols() + 1)/2) << "}\n";
-       else if (type_ == "multline" || type_ == "gather") 
-               os << "\\begin{" << type_ << "}\n";
+       else if (type_ == "alignat" || type_ == "xalignat")
+               os << "\\begin{" << type_ << star(n) << '}'
+                 << '{' << static_cast<unsigned int>((ncols() + 1)/2) << "}\n";
 
-       else 
-               os << "\\begin{unknown" << star(n) << "}";
+       else if (type_ == "xxalignat")
+               os << "\\begin{" << type_ << '}'
+                 << '{' << static_cast<unsigned int>((ncols() + 1)/2) << "}\n";
+
+       else
+               os << "\\begin{unknown" << star(n) << '}';
 }
 
 
@@ -387,15 +388,24 @@ void MathHullInset::footer_write(WriteStream & os) const
                else
                        os << "\\]\n";
 
-       else if (type_ == "eqnarray" || type_ == "align" || type_ == "alignat"
-             || type_ == "xalignat")
-               os << "\n\\end{" << type_ << star(n) << "}\n";
+       else if (type_ == "eqnarray" || type_ == "align" || type_ == "flalign"
+                || type_ == "alignat" || type_ == "xalignat"
+                || type_ == "gather" || type_ == "multline")
+               os << "\\end{" << type_ << star(n) << "}\n";
 
-       else if (type_ == "xxalignat" || type_ == "multline" || type_ == "gather")
-               os << "\n\\end{" << type_ << "}\n";
+       else if (type_ == "xxalignat")
+               os << "\\end{" << type_ << "}\n";
 
        else
-               os << "\\end{unknown" << star(n) << "}";
+               os << "\\end{unknown" << star(n) << '}';
+}
+
+
+bool MathHullInset::colChangeOK() const
+{
+       return
+               type_ == "align" || type_ == "flalign" ||type_ == "alignat" ||
+               type_ == "xalignat" || type_ == "xxalignat";
 }
 
 
@@ -409,32 +419,29 @@ void MathHullInset::addRow(row_type row)
 
 void MathHullInset::delRow(row_type row)
 {
+       if (nrows() <= 1)
+               return;
        MathGridInset::delRow(row);
        nonum_.erase(nonum_.begin() + row);
        label_.erase(label_.begin() + row);
 }
 
 
-void MathHullInset::addFancyCol(col_type col)
+void MathHullInset::addCol(col_type col)
 {
-       if (type_ == "equation")
-               mutate("eqnarray");
-       
-       else if (type_ == "eqnarray") {
-               mutate("align");
-               addFancyCol(col);
-       }
-
-       else if (type_ == "align" || type_ == "alignat"
-             || type_ == "xalignat" || type_ == "xxalignat") 
+       if (colChangeOK())
                MathGridInset::addCol(col);
+       else
+               lyxerr << "Can't change number of columns in '" << type_ << "'\n";
 }
 
 
-void MathHullInset::delFancyCol(col_type col)
+void MathHullInset::delCol(col_type col)
 {
-       if (type_ == "alignat" || type_ == "xalignat" || type_ == "xxalignat") 
+       if (colChangeOK())
                MathGridInset::delCol(col);
+       else
+               lyxerr << "Can't change number of columns in '" << type_ << "'\n";
 }
 
 
@@ -444,7 +451,7 @@ string MathHullInset::nicelabel(row_type row) const
                return string();
        if (label_[row].empty())
                return string("(#)");
-       return "(" + label_[row] + ")";
+       return '(' + label_[row] + ')';
 }
 
 
@@ -478,7 +485,7 @@ void MathHullInset::mutate(string const & newtype)
        //lyxerr << "mutating from '" << type_ << "' to '" << newtype << "'\n";
 
        // we try to move along the chain
-       // none <-> simple <-> equation <-> eqnarray 
+       // none <-> simple <-> equation <-> eqnarray
 
        if (newtype == "dump") {
                dump();
@@ -526,7 +533,7 @@ void MathHullInset::mutate(string const & newtype)
                } else if (newtype == "multline" || newtype == "gather") {
                        setType(newtype);
                        numbered(0, false);
-               } else {                        
+               } else {
                        MathGridInset::addCol(1);
                        // split it "nicely"
                        pos_type pos = firstRelOp(cell(0));
@@ -581,12 +588,16 @@ void MathHullInset::mutate(string const & newtype)
        }
 
        else if (type_ == "multline") {
-               if (newtype == "gather") {
-                       setType("gather");
+               if (newtype == "gather" || newtype == "align" ||
+                   newtype == "xalignat" || newtype == "xxalignat" || newtype == "flalign")
+                       setType(newtype);
+               else if (newtype == "eqnarray") {
+                       MathGridInset::addCol(1);
+                       MathGridInset::addCol(1);
+                       setType("eqnarray");
                } else {
                        lyxerr << "mutation from '" << type_
-                               << "' to '" << newtype << "' not implemented"
-                                                << endl;
+                               << "' to '" << newtype << "' not implemented" << endl;
                }
        }
 
@@ -606,31 +617,30 @@ void MathHullInset::mutate(string const & newtype)
 }
 
 
-void MathHullInset::write(WriteStream & os) const
+string MathHullInset::eolString(row_type row, bool fragile) const
 {
-       header_write(os);
-
-       bool n = numberedType();
-
-       for (row_type row = 0; row < nrows(); ++row) {
-               for (col_type col = 0; col < ncols(); ++col)
-                       os << cell(index(row, col)) << eocString(col);
-               if (n) {
-                       if (!label_[row].empty())
-                               os << "\\label{" << label_[row] << "}";
-                       if (nonum_[row])
-                               os << "\\nonumber ";
-               }
-               os << eolString(row);
+       string res;
+       if (numberedType()) {
+               if (!label_[row].empty() && !nonum_[row])
+                       res += "\\label{" + label_[row] + '}';
+               if (nonum_[row] && (type_ != "multline"))
+                       res += "\\nonumber ";
        }
+       return res + MathGridInset::eolString(row, fragile);
+}
+
 
+void MathHullInset::write(WriteStream & os) const
+{
+       header_write(os);
+       MathGridInset::write(os);
        footer_write(os);
 }
 
 
 void MathHullInset::normalize(NormalStream & os) const
 {
-       os << "[formula " << type_ << " ";
+       os << "[formula " << type_ << ' ';
        MathGridInset::normalize(os);
        os << "] ";
 }
@@ -686,7 +696,9 @@ void MathHullInset::doExtern
        if (getType() == "simple") {
                size_type pos = cell(idx).find_last(eq);
                MathArray ar;
-               if (pos == cell(idx).size()) {
+               if (mathcursor && mathcursor->selection()) {
+                       ar = asArray(mathcursor->grabAndEraseSelection());
+               } else if (pos == cell(idx).size()) {
                        ar = cell(idx);
                        lyxerr << "use whole cell: " << ar << "\n";
                } else {
@@ -731,7 +743,7 @@ void MathHullInset::doExtern
 }
 
 
-MathInset::result_type MathHullInset::dispatch
+dispatch_result MathHullInset::dispatch
        (FuncRequest const & cmd, idx_type & idx, pos_type & pos)
 {
        switch (cmd.action) {
@@ -742,7 +754,7 @@ MathInset::result_type MathHullInset::dispatch
                                idx = 1;
                                pos = 0;
                                return DISPATCHED_POP;
-                       } 
+                       }
                        return MathGridInset::dispatch(cmd, idx, pos);
 
                case LFUN_MATH_NUMBER:
@@ -750,25 +762,29 @@ MathInset::result_type MathHullInset::dispatch
                        if (display()) {
                                //bv->lockedInsetStoreUndo(Undo::INSERT);
                                bool old = numberedType();
-                               for (row_type row = 0; row < nrows(); ++row)
-                                       numbered(row, !old);
+                               if (type_ == "multline")
+                                       numbered(nrows() - 1, !old);
+                               else
+                                       for (row_type row = 0; row < nrows(); ++row)
+                                               numbered(row, !old);
                                //bv->owner()->message(old ? _("No number") : _("Number"));
                                //updateLocal(bv, true);
                        }
-                       return DISPATCHED; 
-               
-               case LFUN_MATH_NONUMBER:        
+                       return DISPATCHED;
+
+               case LFUN_MATH_NONUMBER:
                        if (display()) {
+                               row_type r = (type_ == "multline") ? nrows() - 1 : row(idx);
                                //bv->lockedInsetStoreUndo(Undo::INSERT);
-                               bool old = numbered(row(idx));
+                               bool old = numbered(r);
                                //bv->owner()->message(old ? _("No number") : _("Number"));
-                               numbered(row(idx), !old);
+                               numbered(r, !old);
                                //updateLocal(bv, true);
                        }
-                       return DISPATCHED; 
+                       return DISPATCHED;
 
                case LFUN_INSERT_LABEL: {
-                       row_type r = row(idx);
+                       row_type r = (type_ == "multline") ? nrows() - 1 : row(idx);
                        string old_label = label(r);
                        string new_label = cmd.argument;
 
@@ -796,22 +812,35 @@ MathInset::result_type MathHullInset::dispatch
                                cmd.view()->repaint();
 
                        label(r, new_label);
-                       return DISPATCHED; 
+                       return DISPATCHED;
                }
 
-               case LFUN_MATH_HALIGN:
-               case LFUN_MATH_VALIGN:
-                       // we explicitly don't want the default behaviour here
-                       return UNDISPATCHED;
-
                case LFUN_MATH_EXTERN:
                        doExtern(cmd, idx, pos);
                        return DISPATCHED_POP;
 
+               case LFUN_MATH_MUTATE: {
+                       row_type r = row(idx);
+                       col_type c = col(idx);
+                       mutate(cmd.argument);
+                       idx = r * ncols() + c;
+                       if (idx >= nargs())
+                               idx = nargs() - 1;
+                       if (pos > cell(idx).size())
+                               pos = cell(idx).size();
+                       return DISPATCHED_POP;
+               }
+
+               case LFUN_MATH_DISPLAY: {
+                       mutate(type_ == "simple" ? "equation" : "simple");
+                       idx = 0;
+                       pos = cell(idx).size();
+                       return DISPATCHED_POP;
+               }
+
                default:
                        return MathGridInset::dispatch(cmd, idx, pos);
 
        }
        return UNDISPATCHED;
 }
-