+/**
+ * \file math_scriptinset.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
#include <config.h>
#include "math_scriptinset.h"
+#include "math_data.h"
+#include "math_mathmlstream.h"
#include "math_support.h"
#include "math_symbolinset.h"
-#include "math_mathmlstream.h"
-#include "funcrequest.h"
-#include "support/LAssert.h"
+#include "dispatchresult.h"
+#include "cursor.h"
#include "debug.h"
+#include "funcrequest.h"
-using namespace lyx::support;
+#include <boost/assert.hpp>
+using std::string;
using std::max;
using std::auto_ptr;
using std::endl;
+
MathScriptInset::MathScriptInset()
- : MathNestInset(3), limits_(0)
-{
- script_[0] = false;
- script_[1] = false;
-}
+ : MathNestInset(1), cell_1_is_up_(false), limits_(0)
+{}
MathScriptInset::MathScriptInset(bool up)
- : MathNestInset(3), limits_(0)
-{
- script_[0] = !up;
- script_[1] = up;
-}
+ : MathNestInset(2), cell_1_is_up_(up), limits_(0)
+{}
MathScriptInset::MathScriptInset(MathAtom const & at, bool up)
- : MathNestInset(3), limits_(0)
+ : MathNestInset(2), cell_1_is_up_(up), limits_(0)
{
- script_[0] = !up;
- script_[1] = up;
- cell(2).push_back(at);
+ BOOST_ASSERT(nargs() >= 1);
+ cell(0).push_back(at);
}
-
-auto_ptr<InsetBase> MathScriptInset::clone() const
+auto_ptr<InsetBase> MathScriptInset::doClone() const
{
return auto_ptr<InsetBase>(new MathScriptInset(*this));
}
}
-bool MathScriptInset::idxFirst(idx_type & idx, pos_type & pos) const
+bool MathScriptInset::idxFirst(LCursor & cur) const
{
- idx = 2;
- pos = 0;
+ cur.idx() = 0;
+ cur.pos() = 0;
return true;
}
-bool MathScriptInset::idxLast(idx_type & idx, pos_type & pos) const
+bool MathScriptInset::idxLast(LCursor & cur) const
{
- idx = 2;
- pos = nuc().size();
+ cur.idx() = 0;
+ cur.pos() = nuc().size();
return true;
}
MathArray const & MathScriptInset::down() const
{
- return cell(0);
+ if (nargs() == 3)
+ return cell(2);
+ BOOST_ASSERT(nargs() > 1);
+ return cell(1);
}
MathArray & MathScriptInset::down()
{
- return cell(0);
+ if (nargs() == 3)
+ return cell(2);
+ BOOST_ASSERT(nargs() > 1);
+ return cell(1);
}
MathArray const & MathScriptInset::up() const
{
+ BOOST_ASSERT(nargs() > 1);
return cell(1);
}
MathArray & MathScriptInset::up()
{
+ BOOST_ASSERT(nargs() > 1);
return cell(1);
}
void MathScriptInset::ensure(bool up)
{
- script_[up] = true;
+ if (nargs() == 1) {
+ // just nucleus so far
+ cells_.push_back(MathArray());
+ cell_1_is_up_ = up;
+ } else if (nargs() == 2 && !has(up)) {
+ if (up) {
+ cells_.push_back(cell(1));
+ cell(1).clear();
+ } else {
+ cells_.push_back(MathArray());
+ }
+ }
}
MathArray const & MathScriptInset::nuc() const
{
- return cell(2);
+ return cell(0);
}
MathArray & MathScriptInset::nuc()
{
- return cell(2);
+ return cell(0);
}
int MathScriptInset::dx0() const
{
- Assert(hasDown());
+ BOOST_ASSERT(hasDown());
return hasLimits() ? (dim_.wid - down().width()) / 2 : nwid();
}
int MathScriptInset::dx1() const
{
- Assert(hasUp());
+ BOOST_ASSERT(hasUp());
return hasLimits() ? (dim_.wid - up().width()) / 2 : nwid();
}
void MathScriptInset::metrics(MetricsInfo & mi, Dimension & dim) const
{
- cell(2).metrics(mi);
- ScriptChanger dummy(mi.base);
cell(0).metrics(mi);
- cell(1).metrics(mi);
- dim_.wid = 0;
+ ScriptChanger dummy(mi.base);
+ if (nargs() > 1)
+ cell(1).metrics(mi);
+ if (nargs() > 2)
+ cell(2).metrics(mi);
+ dim.wid = 0;
if (hasLimits()) {
- dim_.wid = nwid();
+ dim.wid = nwid();
if (hasUp())
- dim_.wid = max(dim_.wid, up().width());
+ dim.wid = max(dim.wid, up().width());
if (hasDown())
- dim_.wid = max(dim_.wid, down().width());
+ dim.wid = max(dim.wid, down().width());
} else {
if (hasUp())
- dim_.wid = max(dim_.wid, up().width());
+ dim.wid = max(dim.wid, up().width());
if (hasDown())
- dim_.wid = max(dim_.wid, down().width());
- dim_.wid += nwid();
+ dim.wid = max(dim.wid, down().width());
+ dim.wid += nwid();
}
- dim_.asc = dy1() + (hasUp() ? up().ascent() : 0);
- dim_.des = dy0() + (hasDown() ? down().descent() : 0);
- metricsMarkers();
- dim = dim_;
+ dim.asc = dy1() + (hasUp() ? up().ascent() : 0);
+ dim.des = dy0() + (hasDown() ? down().descent() : 0);
+ metricsMarkers(dim);
+ dim_ = dim;
}
nuc().draw(pi, x + dxx(), y);
else {
nuc().setXY(x + dxx(), y);
- if (editing())
+ if (editing(pi.base.bv))
drawStr(pi, pi.base.font, x + dxx(), y, ".");
}
ScriptChanger dummy(pi.base);
void MathScriptInset::removeScript(bool up)
{
- cell(up).clear();
- script_[up] = false;
+ lyxerr << "MathScriptInset::removeScript: 1 up: " << up << endl;
+ if (nargs() == 2) {
+ lyxerr << "MathScriptInset::removeScript: a up: " << up << endl;
+ if (up == cell_1_is_up_)
+ cells_.pop_back();
+ lyxerr << "MathScriptInset::removeScript: b up: " << up << endl;
+ } else if (nargs() == 3) {
+ if (up == true) {
+ swap(cells_[1], cells_[2]);
+ cell_1_is_up_ = false;
+ } else {
+ cell_1_is_up_ = true;
+ }
+ cells_.pop_back();
+ }
+ lyxerr << "MathScriptInset::removeScript: 2 up: " << up << endl;
}
bool MathScriptInset::has(bool up) const
{
- return script_[up];
+ return idxOfScript(up);
}
bool MathScriptInset::hasUp() const
{
- return script_[1];
+ //lyxerr << "1up: " << bool(cell_1_is_up_) << endl;
+ //lyxerr << "hasUp: " << bool(idxOfScript(true)) << endl;
+ return idxOfScript(true);
}
bool MathScriptInset::hasDown() const
{
- return script_[0];
+ //lyxerr << "1up: " << bool(cell_1_is_up_) << endl;
+ //lyxerr << "hasDown: " << bool(idxOfScript(false)) << endl;
+ return idxOfScript(false);
}
-bool MathScriptInset::idxRight(idx_type &, pos_type &) const
+InsetBase::idx_type MathScriptInset::idxOfScript(bool up) const
{
- return false;
+ if (nargs() == 1)
+ return 0;
+ if (nargs() == 2)
+ return (cell_1_is_up_ == up) ? 1 : 0;
+ if (nargs() == 3)
+ return up ? 1 : 2;
+ BOOST_ASSERT(false);
+ // Silence compiler
+ return 0;
}
-bool MathScriptInset::idxLeft(idx_type &, pos_type &) const
+bool MathScriptInset::idxRight(LCursor &) const
{
return false;
}
-bool MathScriptInset::idxUpDown(idx_type & idx, pos_type & pos, bool up,
- int) const
+bool MathScriptInset::idxLeft(LCursor &) const
{
- if (idx == 1) {
- // if we are 'up' we can't go further up
- if (up)
- return false;
- // otherwise go to last base position
- idx = 2;
- pos = cell(2).size();
- }
+ return false;
+}
- else if (idx == 0) {
- // if we are 'down' we can't go further down
- if (!up)
- return false;
- idx = 2;
- pos = cell(2).size();
- }
- else {
- // in nucleus
- // don't go up/down if there is no cell.
+bool MathScriptInset::idxUpDown(LCursor & cur, bool up) const
+{
+ // in nucleus?
+ if (cur.idx() == 0) {
+ // don't go up/down if there is no cell in this direction
if (!has(up))
return false;
// go up/down only if in the last position
// or in the first position of something with displayed limits
- if (pos == cell(2).size() || (pos == 0 && hasLimits())) {
- idx = up;
- pos = 0;
+ if (cur.pos() == cur.lastpos() || (cur.pos() == 0 && hasLimits())) {
+ cur.idx() = idxOfScript(up);
+ cur.pos() = 0;
return true;
}
return false;
}
- return true;
+
+ // Are we 'up'?
+ if (has(up) && cur.idx() == idxOfScript(true)) {
+ // can't go further up
+ if (up)
+ return false;
+ // otherwise go to last position in the nucleus
+ cur.idx() = 0;
+ cur.pos() = cur.lastpos();
+ return true;
+ }
+
+ // Are we 'down'?
+ if (has(up) && cur.idx() == idxOfScript(false)) {
+ // can't go further down
+ if (!up)
+ return false;
+ // otherwise go to last position in the nucleus
+ cur.idx() = 0;
+ cur.pos() = cur.lastpos();
+ return true;
+ }
+
+ return false;
}
if (u)
os << "^(" << up() << ')';
- if (nuc().size())
+ if (nuc().size()) {
if (d)
os << ',' << down() << ']';
+ }
}
-void MathScriptInset::mathmlize( MathMLStream & os) const
+void MathScriptInset::mathmlize(MathMLStream & os) const
{
bool d = hasDown() && down().size();
bool u = hasUp() && up().size();
}
-void MathScriptInset::notifyCursorLeaves(idx_type idx)
+void MathScriptInset::notifyCursorLeaves(LCursor & cur)
{
- MathNestInset::notifyCursorLeaves(idx);
+ MathNestInset::notifyCursorLeaves(cur);
+
+ lyxerr << "MathScriptInset::notifyCursorLeaves: 1 " << cur << endl;
// remove empty scripts if possible
- if (idx != 2 && script_[idx] && cell(idx).empty()) {
- cell(idx).clear();
- script_[idx] = false;
+if (1) {
+ if (nargs() > 2 && cur.idx() == 2 && cell(2).empty()) {
+ // must be a subscript...
+ removeScript(false);
+ } else if (nargs() > 1 && cur.idx() == 1 && cell(1).empty()) {
+ // could be either subscript or super script
+ removeScript(cell_1_is_up_);
}
}
+ lyxerr << "MathScriptInset::notifyCursorLeaves: 2 " << cur << endl;
+}
+
-dispatch_result MathScriptInset::dispatch
- (FuncRequest const & cmd, idx_type & idx, pos_type & pos)
+void MathScriptInset::doDispatch(LCursor & cur, FuncRequest & cmd)
{
+ //lyxerr << "MathScriptInset: request: " << cmd << std::endl;
+
if (cmd.action == LFUN_MATH_LIMITS) {
if (!cmd.argument.empty()) {
if (cmd.argument == "limits")
else
limits_ = 0;
} else if (limits_ == 0)
- limits_ = (hasLimits()) ? -1 : 1;
+ limits_ = hasLimits() ? -1 : 1;
else
limits_ = 0;
- return DISPATCHED;
+ return;
}
- return MathNestInset::dispatch(cmd, idx, pos);
+ MathNestInset::doDispatch(cur, cmd);
}
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