]> git.lyx.org Git - features.git/blobdiff - src/mathed/math_hullinset.C
change "support/std_sstream.h" to <sstream>
[features.git] / src / mathed / math_hullinset.C
index cadde9f34bda057f1226e510555944be615db05e..b56dec9d2c70fb9b8414911e618de80382d843eb 100644 (file)
 #include "math_support.h"
 
 #include "BufferView.h"
+#include "CutAndPaste.h"
+#include "LColor.h"
+#include "LaTeXFeatures.h"
 #include "cursor.h"
-#include "dispatchresult.h"
 #include "debug.h"
+#include "dispatchresult.h"
 #include "funcrequest.h"
 #include "gettext.h"
-#include "LaTeXFeatures.h"
-#include "LColor.h"
+#include "lyx_main.h"
 #include "lyxrc.h"
 #include "outputparams.h"
 #include "textpainter.h"
 #include "undo.h"
 
+#include "insets/render_preview.h"
+
 #include "frontends/Alert.h"
 
-#include "support/std_sstream.h"
+#include "graphics/PreviewImage.h"
+#include "graphics/PreviewLoader.h"
+
+#include <boost/bind.hpp>
 
+#include <sstream>
+
+using lyx::cap::grabAndEraseSelection;
 
 using std::endl;
 using std::max;
@@ -114,10 +124,9 @@ namespace {
 
 
 MathHullInset::MathHullInset()
-       : MathGridInset(1, 1), type_("none"), nonum_(1), label_(1)
+       : MathGridInset(1, 1), type_("none"), nonum_(1), label_(1),
+         preview_(new RenderPreview(this))
 {
-       // This is needed as long the math parser is not re-entrant
-       initMath();
        //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << endl;
        //lyxerr << "sizeof MetricsInfo: " << sizeof(MetricsInfo) << endl;
        //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << endl;
@@ -127,18 +136,42 @@ MathHullInset::MathHullInset()
 
 
 MathHullInset::MathHullInset(string const & type)
-       : MathGridInset(getCols(type), 1), type_(type), nonum_(1), label_(1)
+       : MathGridInset(getCols(type), 1), type_(type), nonum_(1), label_(1),
+         preview_(new RenderPreview(this))
 {
        setDefaults();
 }
 
 
+MathHullInset::MathHullInset(MathHullInset const & other)
+       : MathGridInset(other),
+         type_(other.type_), nonum_(other.nonum_), label_(other.label_),
+         preview_(new RenderPreview(this))
+{}
+
+
+MathHullInset::~MathHullInset()
+{}
+
+
 auto_ptr<InsetBase> MathHullInset::clone() const
 {
        return auto_ptr<InsetBase>(new MathHullInset(*this));
 }
 
 
+void MathHullInset::operator=(MathHullInset const & other)
+{
+       if (this == &other)
+               return;
+       *static_cast<MathGridInset*>(this) = MathGridInset(other);
+       type_  = other.type_;
+       nonum_ = other.nonum_;
+       label_ = other.label_;
+       preview_.reset(new RenderPreview(*other.preview_, this));
+}
+
+
 MathInset::mode_type MathHullInset::currentMode() const
 {
        if (type_ == "none")
@@ -196,6 +229,26 @@ char const * MathHullInset::standardFont() const
 
 void MathHullInset::metrics(MetricsInfo & mi, Dimension & dim) const
 {
+       BOOST_ASSERT(mi.base.bv && mi.base.bv->buffer());
+
+       bool use_preview = false;
+       if (!editing(mi.base.bv) &&
+           RenderPreview::status() == LyXRC::PREVIEW_ON) {
+               lyx::graphics::PreviewImage const * pimage =
+                       preview_->getPreviewImage(*mi.base.bv->buffer());
+               use_preview = pimage && pimage->image();
+       }
+
+       if (use_preview) {
+               preview_->metrics(mi, dim);
+               // insert a one pixel gap in front of the formula
+               dim.wid += 1;
+               if (display())
+                       dim.des += 12;
+               dim_ = dim;
+               return;
+       }
+
        FontSetChanger dummy1(mi.base, standardFont());
        StyleChanger dummy2(mi.base, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 
@@ -230,6 +283,23 @@ void MathHullInset::metrics(MetricsInfo & mi, Dimension & dim) const
 
 void MathHullInset::draw(PainterInfo & pi, int x, int y) const
 {
+       BOOST_ASSERT(pi.base.bv && pi.base.bv->buffer());
+
+       bool use_preview = false;
+       if (!editing(pi.base.bv) &&
+           RenderPreview::status() == LyXRC::PREVIEW_ON) {
+               lyx::graphics::PreviewImage const * pimage =
+                       preview_->getPreviewImage(*pi.base.bv->buffer());
+               use_preview = pimage && pimage->image();
+       }
+
+       if (use_preview) {
+               // one pixel gap in front
+               preview_->draw(pi, x + 1, y);
+               setPosCache(pi, x, y);
+               return;
+       }
+
        FontSetChanger dummy1(pi.base, standardFont());
        StyleChanger dummy2(pi.base, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
        MathGridInset::draw(pi, x + 1, y);
@@ -274,6 +344,40 @@ void MathHullInset::drawT(TextPainter & pain, int x, int y) const
 }
 
 
+namespace {
+
+string const latex_string(MathHullInset const & inset)
+{
+       ostringstream ls;
+       WriteStream wi(ls, false, false);
+       inset.write(wi);
+       return ls.str();
+}
+
+} // namespace anon
+
+
+void MathHullInset::addPreview(lyx::graphics::PreviewLoader & ploader) const
+{
+       if (RenderPreview::status() == LyXRC::PREVIEW_ON) {
+               string const snippet = latex_string(*this);
+               preview_->addPreview(snippet, ploader);
+       }
+}
+
+
+void MathHullInset::notifyCursorLeaves(LCursor & cur)
+{
+       if (RenderPreview::status() != LyXRC::PREVIEW_ON)
+               return;
+
+       Buffer const & buffer = cur.buffer();
+       string const snippet = latex_string(*this);
+       preview_->addPreview(snippet, buffer);
+       preview_->startLoading(buffer);
+}
+
+
 string MathHullInset::label(row_type row) const
 {
        row_type n = nrows();
@@ -734,7 +838,7 @@ void MathHullInset::doExtern(LCursor & cur, FuncRequest & func)
                size_type pos = cur.cell().find_last(eq);
                MathArray ar;
                if (cur.inMathed() && cur.selection()) {
-                       asArray(cur.grabAndEraseSelection(), ar);
+                       asArray(grabAndEraseSelection(cur), ar);
                } else if (pos == cur.cell().size()) {
                        ar = cur.cell();
                        lyxerr << "use whole cell: " << ar << endl;
@@ -786,16 +890,24 @@ void MathHullInset::priv_dispatch(LCursor & cur, FuncRequest & cmd)
 {
        switch (cmd.action) {
 
+       case LFUN_FINISHED_LEFT:
+       case LFUN_FINISHED_RIGHT:
+       case LFUN_FINISHED_UP:
+       case LFUN_FINISHED_DOWN:
+               MathGridInset::priv_dispatch(cur, cmd);
+               notifyCursorLeaves(cur);
+               break;
+
        case LFUN_BREAKPARAGRAPH:
                // just swallow this
                break;
 
        case LFUN_BREAKLINE:
                if (type_ == "simple" || type_ == "equation") {
+                       recordUndoInset(cur);
                        mutate("eqnarray");
-                       cur.idx() = 1;
-                       cur.pos() = 0;
-                       //cur.dispatched(FINISHED);
+                       cur.idx() = 0;
+                       cur.pos() = cur.lastpos();
                        break;
                }
                MathGridInset::priv_dispatch(cur, cmd);
@@ -804,7 +916,7 @@ void MathHullInset::priv_dispatch(LCursor & cur, FuncRequest & cmd)
        case LFUN_MATH_NUMBER:
                //lyxerr << "toggling all numbers" << endl;
                if (display()) {
-                       recordUndo(cur);
+                       recordUndoInset(cur);
                        bool old = numberedType();
                        if (type_ == "multline")
                                numbered(nrows() - 1, !old);
@@ -817,8 +929,8 @@ void MathHullInset::priv_dispatch(LCursor & cur, FuncRequest & cmd)
 
        case LFUN_MATH_NONUMBER:
                if (display()) {
+                       recordUndoInset(cur);
                        row_type r = (type_ == "multline") ? nrows() - 1 : cur.row();
-                       recordUndo(cur);
                        bool old = numbered(r);
                        cur.message(old ? _("No number") : _("Number"));
                        numbered(r, !old);
@@ -826,6 +938,7 @@ void MathHullInset::priv_dispatch(LCursor & cur, FuncRequest & cmd)
                break;
 
        case LFUN_INSERT_LABEL: {
+               recordUndoInset(cur);
                row_type r = (type_ == "multline") ? nrows() - 1 : cur.row();
                string old_label = label(r);
                string new_label = cmd.argument;
@@ -846,12 +959,12 @@ void MathHullInset::priv_dispatch(LCursor & cur, FuncRequest & cmd)
        }
 
        case LFUN_MATH_EXTERN:
+               recordUndoInset(cur);
                doExtern(cur, cmd);
-               //cur.dispatched(FINISHED);
                break;
 
        case LFUN_MATH_MUTATE: {
-               lyxerr << "Hull: MUTATE: " << cmd.argument << endl;
+               recordUndoInset(cur);
                row_type row = cur.row();
                col_type col = cur.col();
                mutate(cmd.argument);
@@ -867,6 +980,7 @@ void MathHullInset::priv_dispatch(LCursor & cur, FuncRequest & cmd)
        }
 
        case LFUN_MATH_DISPLAY: {
+               recordUndoInset(cur);
                mutate(type_ == "simple" ? "equation" : "simple");
                cur.idx() = 0;
                cur.pos() = cur.lastpos();
@@ -902,7 +1016,6 @@ bool MathHullInset::getStatus(LCursor & cur, FuncRequest const & cmd,
 
 /////////////////////////////////////////////////////////////////////
 
-#include "formulamacro.h"
 #include "math_arrayinset.h"
 #include "math_deliminset.h"
 #include "math_factory.h"
@@ -912,12 +1025,10 @@ bool MathHullInset::getStatus(LCursor & cur, FuncRequest const & cmd,
 
 #include "bufferview_funcs.h"
 #include "lyxtext.h"
-#include "undo.h"
 
 #include "frontends/LyXView.h"
 #include "frontends/Dialogs.h"
 
-#include "support/std_sstream.h"
 #include "support/lstrings.h"
 #include "support/lyxlib.h"
 
@@ -975,8 +1086,8 @@ void MathHullInset::handleFont2(LCursor & cur, string const & arg)
 
 void MathHullInset::edit(LCursor & cur, bool left)
 {
-       lyxerr << "MathHullInset: edit left/right" << endl;
        cur.push(*this);
+       left ? idxFirst(cur) : idxLast(cur);
 }
 
 
@@ -1039,19 +1150,12 @@ InsetBase::Code MathHullInset::lyxCode() const
 /////////////////////////////////////////////////////////////////////
 
 
-#if 1
-bool MathHullInset::searchForward(BufferView *, string const &, bool, bool)
-{
-       return false;
-}
-
-#else
+#if 0
 bool MathHullInset::searchForward(BufferView * bv, string const & str,
                                     bool, bool)
 {
-       return false;
 #ifdef WITH_WARNINGS
-#warning pretty ugly
+#warning completely broken
 #endif
        static MathHullInset * lastformula = 0;
        static CursorBase current = DocIterator(ibegin(nucleus()));
@@ -1089,15 +1193,6 @@ bool MathHullInset::searchForward(BufferView * bv, string const & str,
 #endif
 
 
-bool MathHullInset::searchBackward(BufferView * bv, string const & what,
-                                     bool a, bool b)
-{
-       lyxerr[Debug::MATHED]
-               << "searching backward not implemented in mathed" << endl;
-       return searchForward(bv, what, a, b);
-}
-
-
 void MathHullInset::write(Buffer const &, std::ostream & os) const
 {
        WriteStream wi(os, false, false);
@@ -1146,7 +1241,9 @@ int MathHullInset::docbook(Buffer const & buf, ostream & os,
                          OutputParams const & runparams) const
 {
        MathMLStream ms(os);
-       ms << MTag("equation");
+       string name="equation";
+       if (! label(0).empty()) name += " id=\"" + label(0)+ "\"";
+       ms << MTag(name.c_str());
        ms <<   MTag("alt");
        ms <<    "<[CDATA[";
        int res = plaintext(buf, ms.os(), runparams);