]> git.lyx.org Git - lyx.git/blobdiff - src/mathed/InsetMathNest.cpp
Merge branch 'master' of git.lyx.org:lyx
[lyx.git] / src / mathed / InsetMathNest.cpp
index c2f4fc16ba5deabdc0e1a9ae2d4e610c038e0927..d1c413b620bcb6fcf072a10183c8001fcab30ac1 100644 (file)
@@ -38,8 +38,8 @@
 #include "MathStream.h"
 #include "MathSupport.h"
 
-#include "Bidi.h"
 #include "Buffer.h"
+#include "BufferParams.h"
 #include "BufferView.h"
 #include "CoordCache.h"
 #include "Cursor.h"
 #include "FuncStatus.h"
 #include "LyX.h"
 #include "LyXRC.h"
+#include "MetricsInfo.h"
 #include "OutputParams.h"
 #include "Text.h"
 
+#include "frontends/Application.h"
 #include "frontends/Clipboard.h"
 #include "frontends/Painter.h"
 #include "frontends/Selection.h"
 
-#include "support/lassert.h"
 #include "support/debug.h"
+#include "support/docstream.h"
 #include "support/gettext.h"
+#include "support/lassert.h"
 #include "support/lstrings.h"
 #include "support/textutils.h"
-#include "support/docstream.h"
 
 #include <algorithm>
 #include <sstream>
@@ -139,7 +141,7 @@ void InsetMathNest::cursorPos(BufferView const & bv,
 // to touch all (math)inset's draw() methods. Right now, we'll store
 // absolute value, and make them here relative, only to make them
 // absolute again when actually drawing the cursor. What a mess.
-       LASSERT(&sl.inset() == this, /**/);
+       LASSERT(&sl.inset() == this, return);
        MathData const & ar = sl.cell();
        CoordCache const & coord_cache = bv.coordCache();
        if (!coord_cache.getArrays().has(&ar)) {
@@ -192,7 +194,7 @@ void InsetMathNest::updateBuffer(ParIterator const & it, UpdateType utype)
 
 bool InsetMathNest::idxNext(Cursor & cur) const
 {
-       LASSERT(&cur.inset() == this, /**/);
+       LASSERT(&cur.inset() == this, return false);
        if (cur.idx() == cur.lastidx())
                return false;
        ++cur.idx();
@@ -209,7 +211,7 @@ bool InsetMathNest::idxForward(Cursor & cur) const
 
 bool InsetMathNest::idxPrev(Cursor & cur) const
 {
-       LASSERT(&cur.inset() == this, /**/);
+       LASSERT(&cur.inset() == this, return false);
        if (cur.idx() == 0)
                return false;
        --cur.idx();
@@ -226,7 +228,7 @@ bool InsetMathNest::idxBackward(Cursor & cur) const
 
 bool InsetMathNest::idxFirst(Cursor & cur) const
 {
-       LASSERT(&cur.inset() == this, /**/);
+       LASSERT(&cur.inset() == this, return false);
        if (nargs() == 0)
                return false;
        cur.idx() = 0;
@@ -237,7 +239,7 @@ bool InsetMathNest::idxFirst(Cursor & cur) const
 
 bool InsetMathNest::idxLast(Cursor & cur) const
 {
-       LASSERT(&cur.inset() == this, /**/);
+       LASSERT(&cur.inset() == this, return false);
        if (nargs() == 0)
                return false;
        cur.idx() = cur.lastidx();
@@ -249,7 +251,9 @@ bool InsetMathNest::idxLast(Cursor & cur) const
 void InsetMathNest::dump() const
 {
        odocstringstream oss;
-       WriteStream os(oss);
+       TexRow texrow(false);
+       otexrowstream ots(oss,texrow);
+       WriteStream os(ots);
        os << "---------------------------------------------\n";
        write(os);
        os << "\n";
@@ -375,8 +379,10 @@ void InsetMathNest::write(WriteStream & os) const
        ModeSpecifier specifier(os, currentMode(), lockedMode());
        docstring const latex_name = name();
        os << '\\' << latex_name;
-       for (size_t i = 0; i < nargs(); ++i)
+       for (size_t i = 0; i < nargs(); ++i) {
+               Changer dummy = os.changeRowEntry(TexRow::mathEntry(id(),i));
                os << '{' << cell(i) << '}';
+       }
        if (nargs() == 0)
                os.pendingSpace(true);
        if (lock_ && !os.latex()) {
@@ -397,20 +403,16 @@ void InsetMathNest::normalize(NormalStream & os) const
 
 void InsetMathNest::latex(otexstream & os, OutputParams const & runparams) const
 {
-       WriteStream wi(os.os(), runparams.moving_arg, true,
-                      runparams.dryrun ? WriteStream::wsDryrun : WriteStream::wsDefault,
-                      runparams.encoding);
+       WriteStream wi(os, runparams.moving_arg, true,
+                       runparams.dryrun ? WriteStream::wsDryrun : WriteStream::wsDefault,
+                       runparams.encoding);
        wi.canBreakLine(os.canBreakLine());
+       Changer dummy = wi.changeRowEntry(os.texrow().textEntry(runparams.lastid,
+                                                               runparams.lastpos));
        write(wi);
+       // Reset parbreak status after a math inset.
+       os.lastChar(0);
        os.canBreakLine(wi.canBreakLine());
-
-       int lf = wi.line();
-       if (lf > 0 && runparams.lastid != -1) {
-               --lf;
-               os.texrow().newline();
-               os.texrow().start(runparams.lastid, runparams.lastpos);
-       }
-       os.texrow().newlines(lf);
 }
 
 
@@ -576,12 +578,12 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
                replaceSelection(cur);
                docstring topaste;
                if (cmd.argument().empty() && !theClipboard().isInternal())
-                       topaste = theClipboard().getAsText();
+                       topaste = theClipboard().getAsText(Clipboard::PlainTextType);
                else {
                        size_t n = 0;
                        idocstringstream is(cmd.argument());
                        is >> n;
-                       topaste = cap::selection(n);
+                       topaste = cap::selection(n, buffer().params().documentClassPtr());
                }
                cur.niceInsert(topaste, parseflg, false);
                cur.clearSelection(); // bug 393
@@ -633,6 +635,7 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
        case LFUN_CHAR_BACKWARD:
        case LFUN_CHAR_FORWARD:
                cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
+               // fall through
        case LFUN_CHAR_RIGHT_SELECT:
        case LFUN_CHAR_LEFT_SELECT:
        case LFUN_CHAR_BACKWARD_SELECT:
@@ -666,7 +669,7 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
                else {
                        bool right = (act == LFUN_CHAR_RIGHT_SELECT
                                                  || act == LFUN_CHAR_RIGHT);
-                       if (lyxrc.visual_cursor || !reverseDirectionNeeded(cur))
+                       if (lyxrc.visual_cursor || !cur.reverseDirectionNeeded())
                                forward = right;
                        else
                                forward = !right;
@@ -693,6 +696,7 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
        case LFUN_DOWN:
        case LFUN_UP:
                cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
+               // fall through
        case LFUN_DOWN_SELECT:
        case LFUN_UP_SELECT: {
                // close active macro
@@ -706,6 +710,12 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
                        act == LFUN_UP_SELECT;
                cur.selHandle(select);
 
+               // handle autocorrect:
+               if (lyxrc.autocorrection_math && cur.autocorrect()) {
+                       cur.autocorrect() = false;
+                       cur.message(_("Autocorrect Off ('!' to enter)"));
+               }
+
                // go up/down
                bool up = act == LFUN_UP || act == LFUN_UP_SELECT;
                bool successful = cur.upDownInMath(up);
@@ -723,19 +733,28 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
        }
 
        case LFUN_MOUSE_DOUBLE:
-       case LFUN_MOUSE_TRIPLE:
        case LFUN_WORD_SELECT:
                cur.pos() = 0;
-               cur.idx() = 0;
                cur.resetAnchor();
-               cur.setSelection(true);
+               cur.selection(true);
                cur.pos() = cur.lastpos();
+               cur.bv().cursor() = cur;
+               break;
+
+       case LFUN_MOUSE_TRIPLE:
+               cur.idx() = 0;
+               cur.pos() = 0;
+               cur.resetAnchor();
+               cur.selection(true);
                cur.idx() = cur.lastidx();
+               cur.pos() = cur.lastpos();
+               cur.bv().cursor() = cur;
                break;
 
        case LFUN_PARAGRAPH_UP:
        case LFUN_PARAGRAPH_DOWN:
                cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
+               // fall through
        case LFUN_PARAGRAPH_UP_SELECT:
        case LFUN_PARAGRAPH_DOWN_SELECT:
                break;
@@ -744,6 +763,7 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
        case LFUN_WORD_BACKWARD:
        case LFUN_WORD_LEFT:
                cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
+               // fall through
        case LFUN_LINE_BEGIN_SELECT:
        case LFUN_WORD_BACKWARD_SELECT:
        case LFUN_WORD_LEFT_SELECT:
@@ -769,6 +789,7 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
        case LFUN_WORD_RIGHT:
        case LFUN_LINE_END:
                cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
+               // fall through
        case LFUN_WORD_FORWARD_SELECT:
        case LFUN_WORD_RIGHT_SELECT:
        case LFUN_LINE_END_SELECT:
@@ -806,7 +827,7 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
                if (cur.pos() == 0)
                        // May affect external cell:
                        cur.recordUndoInset();
-               else
+               else if (!cur.inMacroMode())
                        cur.recordUndoSelection();
                // if the inset can not be removed from within, delete it
                if (!cur.backspace()) {
@@ -985,11 +1006,11 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
        case LFUN_FONT_DEFAULT:
                handleFont(cur, cmd.argument(), "textnormal");
                break;
-
        case LFUN_FONT_UNDERLINE:
                cur.recordUndo();
                cur.handleNest(createInsetMath("underline", cur.buffer()));
                break;
+
        case LFUN_MATH_MODE: {
 #if 1
                // ignore math-mode on when already in math mode
@@ -999,11 +1020,10 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
                cur.macroModeClose();
                docstring const save_selection = grabAndEraseSelection(cur);
                selClearOrDel(cur);
-               //cur.plainInsert(MathAtom(new InsetMathMBox(cur.bv())));
                if (currentMode() <= Inset::TEXT_MODE)
                        cur.plainInsert(MathAtom(new InsetMathEnsureMath(buffer_)));
                else
-                       cur.plainInsert(MathAtom(new InsetMathBox(buffer_, from_ascii("mbox"))));
+                       cur.plainInsert(createInsetMath("text", buffer_));
                cur.posBackward();
                cur.pushBackward(*cur.nextInset());
                cur.niceInsert(save_selection);
@@ -1024,7 +1044,7 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
        case LFUN_REGEXP_MODE: {
                InsetMath * im = cur.inset().asInsetMath();
                if (im) {
-                       InsetMathHull * i = im->asHullInset();          
+                       InsetMathHull * i = im->asHullInset();
                        if (i && i->getType() == hullRegexp) {
                                cur.message(_("Already in regular expression mode"));
                                break;
@@ -1075,13 +1095,19 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
                cur.recordUndo();
                unsigned int m = 1;
                unsigned int n = 1;
-               docstring name;
+               docstring name = from_ascii("matrix");
                idocstringstream is(cmd.argument());
                is >> m >> n >> name;
                if (m < 1)
                        m = 1;
                if (n < 1)
                        n = 1;
+               // check if we have a valid decoration
+               if (name != "pmatrix" && name != "bmatrix"
+                       && name != "Bmatrix" && name != "vmatrix"
+                       && name != "Vmatrix" && name != "matrix")
+                       name = from_ascii("matrix");
+
                cur.niceInsert(
                        MathAtom(new InsetMathAMSArray(buffer_, name, m, n)));
                break;
@@ -1268,7 +1294,7 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
                if (createInsetMath_fromDialogStr(cmd.argument(), ar)) {
                        cur.recordUndoSelection();
                        cur.insert(ar);
-                       cur.forceBufferUpdate();                        
+                       cur.forceBufferUpdate();
                } else
                        cur.undispatched();
                break;
@@ -1441,6 +1467,10 @@ bool InsetMathNest::getStatus(Cursor & cur, FuncRequest const & cmd,
                flag.setEnabled(false);
                break;
 
+       case LFUN_CAPTION_INSERT:
+               flag.setEnabled(false);
+               break;
+
        case LFUN_SPACE_INSERT: {
                docstring const & name = cmd.argument();
                if (name == "visible")
@@ -1452,6 +1482,13 @@ bool InsetMathNest::getStatus(Cursor & cur, FuncRequest const & cmd,
                flag.setEnabled(!asHullInset());
                break;
 
+       case LFUN_PASTE: {
+               docstring const & name = cmd.argument();
+               if (name == "html" || name == "latex")
+                       flag.setEnabled(false);
+               break;
+       }
+
        default:
                ret = false;
                break;
@@ -1527,7 +1564,7 @@ void InsetMathNest::lfunMousePress(Cursor & cur, FuncRequest & cmd)
                // cur.result().update(): don't overwrite previously set flags.
                cur.screenUpdateFlags(Update::Decoration | Update::FitCursor
                                | cur.result().screenUpdate());
-       } else if (cmd.button() == mouse_button::button2) {
+       } else if (cmd.button() == mouse_button::button2 && lyxrc.mouse_middlebutton_paste) {
                if (cap::selection()) {
                        // See comment in Text::dispatch why we do this
                        cap::copySelectionToStack();
@@ -1545,16 +1582,29 @@ void InsetMathNest::lfunMousePress(Cursor & cur, FuncRequest & cmd)
 void InsetMathNest::lfunMouseMotion(Cursor & cur, FuncRequest & cmd)
 {
        // only select with button 1
-       if (cmd.button() == mouse_button::button1) {
-               Cursor & bvcur = cur.bv().cursor();
-               if (bvcur.realAnchor().hasPart(cur)) {
-                       //lyxerr << "## lfunMouseMotion: cursor: " << cur << endl;
-                       bvcur.setCursor(cur);
-                       bvcur.setSelection(true);
-                       //lyxerr << "MOTION " << bvcur << endl;
-               } else
-                       cur.undispatched();
+       if (cmd.button() != mouse_button::button1)
+               return;
+
+       Cursor & bvcur = cur.bv().cursor();
+
+       // ignore motions deeper nested than the real anchor
+       if (!bvcur.realAnchor().hasPart(cur)) {
+               cur.undispatched();
+               return;
        }
+
+       CursorSlice old = bvcur.top();
+
+       // We continue with our existing selection or start a new one, so don't
+       // reset the anchor.
+       bvcur.setCursor(cur);
+       // Did we actually move?
+       if (cur.top() == old)
+               // We didn't move one iota, so no need to change selection status
+               // or update the screen.
+               cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
+       else
+               bvcur.setSelection();
 }
 
 
@@ -1567,7 +1617,7 @@ void InsetMathNest::lfunMouseRelease(Cursor & cur, FuncRequest & cmd)
                        cur.noScreenUpdate();
                else {
                        Cursor & bvcur = cur.bv().cursor();
-                       bvcur.setSelection(true);
+                       bvcur.selection(true);
                }
                return;
        }
@@ -1600,9 +1650,8 @@ bool InsetMathNest::interpretChar(Cursor & cur, char_type const c)
                }
 
                // do not finish macro for known * commands
-               MathWordList const & mwl = mathedWordList();
                bool star_macro = c == '*'
-                       && (mwl.find(name.substr(1) + "*") != mwl.end()
+                       && (in_word_set(name.substr(1) + '*')
                            || cur.buffer()->getMacro(name.substr(1) + "*", cur, true));
                if (isAlphaASCII(c) || star_macro) {
                        cur.activeMacro()->setName(name + docstring(1, c));
@@ -1621,14 +1670,19 @@ bool InsetMathNest::interpretChar(Cursor & cur, char_type const c)
                        } else if (c == '^' && currentMode() == InsetMath::MATH_MODE) {
                                cur.backspace();
                                cur.niceInsert(createInsetMath("mathcircumflex", buf));
-                       } else if (c == '{') {
-                               cur.backspace();
-                               cur.niceInsert(MathAtom(new InsetMathBrace(buf)));
-                       } else if (c == '%') {
+                       } else if (c == '{' || c == '%') {
+                               //using the saved selection as argument
+                               InsetMathUnknown * p = cur.activeMacro();
+                               p->finalize();
+                               MathData sel(cur.buffer());
+                               asArray(p->selection(), sel);
                                cur.backspace();
-                               cur.niceInsert(MathAtom(new InsetMathComment(buf)));
+                               if (c == '{')
+                                       cur.niceInsert(MathAtom(new InsetMathBrace(sel)));
+                               else
+                                       cur.niceInsert(MathAtom(new InsetMathComment(sel)));
                        } else if (c == '#') {
-                               LASSERT(cur.activeMacro(), /**/);
+                               LASSERT(cur.activeMacro(), return false);
                                cur.activeMacro()->setName(name + docstring(1, c));
                        } else {
                                cur.backspace();
@@ -1665,6 +1719,13 @@ bool InsetMathNest::interpretChar(Cursor & cur, char_type const c)
                                        new InsetMathBig(name.substr(1), delim)));
                                return true;
                        }
+               } else if (name == "\\smash" && c == '[') {
+                       // We can't use cur.macroModeClose() because
+                       // it would create an InsetMathPhantom
+                       InsetMathUnknown * p = cur.activeMacro();
+                       p->finalize();
+                       interpretChar(cur, c);
+                       return true;
                }
 
                // leave macro mode and try again if necessary
@@ -1688,7 +1749,7 @@ bool InsetMathNest::interpretChar(Cursor & cur, char_type const c)
                cur.autocorrect() = false;
                cur.message(_("Autocorrect Off ('!' to enter)"));
                return true;
-       } 
+       }
        if (lyxrc.autocorrection_math && c == '!' && !cur.autocorrect()) {
                cur.autocorrect() = true;
                cur.message(_("Autocorrect On (<space> to exit)"));
@@ -1697,7 +1758,7 @@ bool InsetMathNest::interpretChar(Cursor & cur, char_type const c)
 
        // just clear selection on pressing the space bar
        if (cur.selection() && c == ' ') {
-               cur.setSelection(false);
+               cur.selection(false);
                return true;
        }
 
@@ -1705,6 +1766,7 @@ bool InsetMathNest::interpretChar(Cursor & cur, char_type const c)
                //lyxerr << "starting with macro" << endl;
                bool reduced = cap::reduceSelectionToOneCell(cur);
                if (reduced || !cur.selection()) {
+                       cur.recordUndoInset();
                        docstring const safe = cap::grabAndEraseSelection(cur);
                        if (!cur.inRegexped())
                                cur.insert(MathAtom(new InsetMathUnknown(from_ascii("\\"), safe, false)));
@@ -1728,7 +1790,7 @@ bool InsetMathNest::interpretChar(Cursor & cur, char_type const c)
                        // but suppress direct insertion of two spaces in a row
                        // the still allows typing  '<space>a<space>' and deleting the 'a', but
                        // it is better than nothing...
-                       if (!cur.pos() != 0 || cur.prevAtom()->getChar() != ' ') {
+                       if (cur.pos() == 0 || cur.prevAtom()->getChar() != ' ') {
                                cur.insert(c);
                                // FIXME: we have to enable full redraw here because of the
                                // visual box corners that define the inset. If we know for
@@ -1764,9 +1826,6 @@ bool InsetMathNest::interpretChar(Cursor & cur, char_type const c)
        // These should be treated differently when not in text mode:
        if (cur.inRegexped()) {
                switch (c) {
-               case '\\':
-                       cur.niceInsert(createInsetMath("backslash", buf));
-                       break;
                case '^':
                        cur.niceInsert(createInsetMath("mathcircumflex", buf));
                        break;
@@ -2063,12 +2122,12 @@ MathCompletionList::MathCompletionList(Cursor const & cur)
        }
        sort(locals.begin(), locals.end());
 
-       if (globals.size() > 0)
+       if (!globals.empty())
                return;
 
        // fill in global macros
        macros.clear();
-       MacroTable::globalMacros().getMacroNames(macros);
+       MacroTable::globalMacros().getMacroNames(macros, false);
        //lyxerr << "Globals completion macros: ";
        for (it = macros.begin(); it != macros.end(); ++it) {
                //lyxerr << "\\" + *it << " ";
@@ -2082,8 +2141,21 @@ MathCompletionList::MathCompletionList(Cursor const & cur)
        globals.push_back(from_ascii("\\framebox"));
        globals.push_back(from_ascii("\\makebox"));
        globals.push_back(from_ascii("\\kern"));
+       globals.push_back(from_ascii("\\xhookrightarrow"));
+       globals.push_back(from_ascii("\\xhookleftarrow"));
        globals.push_back(from_ascii("\\xrightarrow"));
+       globals.push_back(from_ascii("\\xRightarrow"));
+       globals.push_back(from_ascii("\\xrightharpoondown"));
+       globals.push_back(from_ascii("\\xrightharpoonup"));
+       globals.push_back(from_ascii("\\xrightleftharpoons"));
        globals.push_back(from_ascii("\\xleftarrow"));
+       globals.push_back(from_ascii("\\xLeftarrow"));
+       globals.push_back(from_ascii("\\xleftharpoondown"));
+       globals.push_back(from_ascii("\\xleftharpoonup"));
+       globals.push_back(from_ascii("\\xleftrightarrow"));
+       globals.push_back(from_ascii("\\xLeftrightarrow"));
+       globals.push_back(from_ascii("\\xleftrightharpoons"));
+       globals.push_back(from_ascii("\\xmapsto"));
        globals.push_back(from_ascii("\\split"));
        globals.push_back(from_ascii("\\gathered"));
        globals.push_back(from_ascii("\\aligned"));
@@ -2097,7 +2169,9 @@ MathCompletionList::MathCompletionList(Cursor const & cur)
        globals.push_back(from_ascii("\\sqrt"));
        globals.push_back(from_ascii("\\root"));
        globals.push_back(from_ascii("\\tabular"));
+       globals.push_back(from_ascii("\\sideset"));
        globals.push_back(from_ascii("\\stackrel"));
+       globals.push_back(from_ascii("\\stackrelthree"));
        globals.push_back(from_ascii("\\binom"));
        globals.push_back(from_ascii("\\choose"));
        globals.push_back(from_ascii("\\brace"));
@@ -2135,12 +2209,16 @@ MathCompletionList::MathCompletionList(Cursor const & cur)
        globals.push_back(from_ascii("\\mathclap"));
        globals.push_back(from_ascii("\\mathllap"));
        globals.push_back(from_ascii("\\mathrlap"));
+       globals.push_back(from_ascii("\\ensuremath"));
        MathWordList const & words = mathedWordList();
        MathWordList::const_iterator it2;
        //lyxerr << "Globals completion commands: ";
        for (it2 = words.begin(); it2 != words.end(); ++it2) {
-               globals.push_back("\\" + (*it2).first);
-               //lyxerr << "\\" + (*it2).first << " ";
+               if (it2->second.inset != "macro" && !it2->second.hidden) {
+                       // macros are already read from MacroTable::globalMacros()
+                       globals.push_back('\\' + it2->first);
+                       //lyxerr << '\\' + it2->first << ' ';
+               }
        }
        //lyxerr << std::endl;
        sort(globals.begin(), globals.end());
@@ -2179,7 +2257,10 @@ std::string MathCompletionList::icon(size_t idx) const
                cmd = locals[idx];
 
        // get the icon resource name by stripping the backslash
-       return "images/math/" + to_utf8(cmd.substr(1)) + ".png";
+       docstring icon_name = frontend::Application::mathIcon(cmd.substr(1));
+       if (icon_name.empty())
+               return std::string();
+       return "images/math/" + to_utf8(icon_name);
 }
 
 std::vector<docstring> MathCompletionList::globals;