]> git.lyx.org Git - lyx.git/blobdiff - src/Text.cpp
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[lyx.git] / src / Text.cpp
index 66c6090aa22c9abb40d8d9561fcdf82ddb7cbcb2..d3a122660da0636278e2972f3d3b387edcf243df 100644 (file)
 #include "ParIterator.h"
 #include "TextClass.h"
 #include "TextMetrics.h"
-#include "VSpace.h"
 #include "WordLangTuple.h"
 #include "WordList.h"
 
 #include "insets/InsetText.h"
 #include "insets/InsetBibitem.h"
 #include "insets/InsetCaption.h"
-#include "insets/InsetLine.h"
 #include "insets/InsetNewline.h"
 #include "insets/InsetNewpage.h"
-#include "insets/InsetOptArg.h"
+#include "insets/InsetArgument.h"
 #include "insets/InsetSpace.h"
 #include "insets/InsetSpecialChar.h"
 #include "insets/InsetTabular.h"
 
 #include <sstream>
 
+
+// TODO: replace if in Text::readParToken() with compile time switch
+#if 0
+
+#include "support/metahash.h"
+
+typedef boost::mpl::string<'\\end','_lay','out'> end_layout;
+typedef boost::mpl::string<'\\end','in','set'>   end_inset;
+
+void foo()
+{
+       std::string token = "\\end_layout";
+
+       switch (boost::hash_value(token)) {
+               case lyx::support::hash_string<end_layout>::value:
+                       return;
+               case lyx::support::hash_string<end_inset>::value:
+                       return;
+               default: ;
+       };
+
+}
+#endif
+
+
 using namespace std;
 using namespace lyx::support;
 
@@ -170,19 +193,12 @@ void mergeParagraph(BufferParams const & bparams,
        pars.erase(boost::next(pars.begin(), par_offset + 1));
 }
 
-// Initialization of the counter for the paragraph id's,
-//
-// FIXME: There should be a more intelligent way to generate and use the
-// paragraph ids per buffer instead a global static counter for all InsetText
-// in the running program.
-static int paragraph_id = -1;
 
 Text::Text(InsetText * owner, bool use_default_layout)
        : owner_(owner), autoBreakRows_(false), undo_counter_(0)
 {
        pars_.push_back(Paragraph());
        Paragraph & par = pars_.back();
-       par.setId(++paragraph_id);
        par.setInsetOwner(owner);
        DocumentClass const & dc = owner->buffer().params().documentClass();
        if (use_default_layout)
@@ -198,10 +214,8 @@ Text::Text(InsetText * owner, Text const & text)
        pars_ = text.pars_;
        ParagraphList::iterator const end = pars_.end();
        ParagraphList::iterator it = pars_.begin();
-       for (; it != end; ++it) {
-               it->setId(++paragraph_id);
+       for (; it != end; ++it)
                it->setInsetOwner(owner);
-       }
 }
 
 
@@ -268,43 +282,66 @@ Font const Text::outerFont(pit_type par_offset) const
 }
 
 
-void acceptChanges(ParagraphList & pars, BufferParams const & bparams)
+static void acceptOrRejectChanges(ParagraphList & pars,
+       BufferParams const & bparams, Text::ChangeOp op)
 {
        pit_type pars_size = static_cast<pit_type>(pars.size());
 
-       // first, accept changes within each individual paragraph
-       // (do not consider end-of-par)
+       // first, accept or reject changes within each individual
+       // paragraph (do not consider end-of-par)
        for (pit_type pit = 0; pit < pars_size; ++pit) {
-               if (!pars[pit].empty())   // prevent assertion failure
-                       pars[pit].acceptChanges(0, pars[pit].size());
+               // prevent assertion failure
+               if (!pars[pit].empty()) {
+                       if (op == Text::ACCEPT)
+                               pars[pit].acceptChanges(0, pars[pit].size());
+                       else
+                               pars[pit].rejectChanges(0, pars[pit].size());
+               }
        }
 
-       // next, accept imaginary end-of-par characters
+       // next, accept or reject imaginary end-of-par characters
        for (pit_type pit = 0; pit < pars_size; ++pit) {
                pos_type pos = pars[pit].size();
-
-               if (pars[pit].isInserted(pos)) {
-                       pars[pit].setChange(pos, Change(Change::UNCHANGED));
-               } else if (pars[pit].isDeleted(pos)) {
-                       if (pit == pars_size - 1) {
-                               // we cannot remove a par break at the end of the last
-                               // paragraph; instead, we mark it unchanged
+               if (pars[pit].isChanged(pos)) {
+                       // keep the end-of-par char if it is inserted and accepted
+                       // or when it is deleted and rejected.
+                       if (pars[pit].isInserted(pos) == (op == Text::ACCEPT)) {
                                pars[pit].setChange(pos, Change(Change::UNCHANGED));
                        } else {
-                               mergeParagraph(bparams, pars, pit);
-                               --pit;
-                               --pars_size;
+                               if (pit == pars_size - 1) {
+                                       // we cannot remove a par break at the end of the last
+                                       // paragraph; instead, we mark it unchanged
+                                       pars[pit].setChange(pos, Change(Change::UNCHANGED));
+                               } else {
+                                       mergeParagraph(bparams, pars, pit);
+                                       --pit;
+                                       --pars_size;
+                               }
                        }
                }
        }
 }
 
+
+void acceptChanges(ParagraphList & pars, BufferParams const & bparams)
+{
+       acceptOrRejectChanges(pars, bparams, Text::ACCEPT);
+}
+
+
+void rejectChanges(ParagraphList & pars, BufferParams const & bparams)
+{
+       acceptOrRejectChanges(pars, bparams, Text::REJECT);
+}
+
+
 InsetText const & Text::inset() const
 {
        return *owner_;
 }
 
 
+
 void Text::readParToken(Paragraph & par, Lexer & lex,
        string const & token, Font & font, Change & change, ErrorList & errorList)
 {
@@ -344,7 +381,13 @@ void Text::readParToken(Paragraph & par, Lexer & lex,
                // of this document. For example, when you apply class article to a beamer document,
                // all unknown layouts such as frame will be added to document class article so that
                // these layouts can keep their original names.
-               tclass.addLayoutIfNeeded(layoutname);
+               bool const added_one = tclass.addLayoutIfNeeded(layoutname);
+               if (added_one) {
+                       // Warn the user.
+                       docstring const s = bformat(_("Layout `%1$s' was not found."), layoutname);
+                       errorList.push_back(
+                               ErrorItem(_("Layout Not Found"), s, par.id(), 0, par.size()));
+               }
 
                par.setLayout(bp.documentClass()[layoutname]);
 
@@ -439,20 +482,15 @@ void Text::readParToken(Paragraph & par, Lexer & lex,
                auto_ptr<Inset> inset(new InsetTabular(buf));
                inset->read(lex);
                par.insertInset(par.size(), inset.release(), font, change);
-       } else if (token == "\\lyxline") {
-               auto_ptr<Inset> inset;
-               inset.reset(new InsetLine);
-               inset->setBuffer(*buf);
-               par.insertInset(par.size(), inset.release(), font, change);
        } else if (token == "\\change_unchanged") {
                change = Change(Change::UNCHANGED);
        } else if (token == "\\change_inserted" || token == "\\change_deleted") {
                lex.eatLine();
                istringstream is(lex.getString());
-               unsigned int aid;
+               int aid;
                time_t ct;
                is >> aid >> ct;
-               map<unsigned int, int> const & am = bp.author_map;
+               BufferParams::AuthorMap const & am = bp.author_map;
                if (am.find(aid) == am.end()) {
                        errorList.push_back(ErrorItem(_("Change tracking error"),
                                            bformat(_("Unknown author index for change: %1$d\n"), aid),
@@ -512,6 +550,9 @@ void Text::readParagraph(Paragraph & par, Lexer & lex,
 
        // Initialize begin_of_body_ on load; redoParagraph maintains
        par.setBeginOfBody();
+       
+       // mark paragraph for spell checking on load
+       // par.requestSpellCheck();
 }
 
 
@@ -589,7 +630,6 @@ static void breakParagraph(Text & text, pit_type par_offset, pos_type pos,
        // end of a paragraph
        tmp->setPlainOrDefaultLayout(bparams.documentClass());
 
-       // layout stays the same with latex-environments
        if (keep_layout) {
                tmp->setLayout(par.layout());
                tmp->setLabelWidthString(par.params().labelWidthString());
@@ -655,7 +695,6 @@ static void breakParagraph(Text & text, pit_type par_offset, pos_type pos,
                par.setPlainOrDefaultLayout(bparams.documentClass());
        }
 
-       // layout stays the same with latex-environments
        if (keep_layout) {
                par.setLayout(tmp->layout());
                par.setLabelWidthString(tmp->params().labelWidthString());
@@ -674,11 +713,13 @@ void Text::breakParagraph(Cursor & cur, bool inverse_logic)
        DocumentClass const & tclass = cur.buffer()->params().documentClass();
        Layout const & layout = cpar.layout();
 
-       // this is only allowed, if the current paragraph is not empty
-       // or caption and if it has not the keepempty flag active
-       if (cur.lastpos() == 0 && !cpar.allowEmpty() &&
-           layout.labeltype != LABEL_SENSITIVE)
+       if (cur.lastpos() == 0 && !cpar.allowEmpty()) {
+               if (changeDepthAllowed(cur, DEC_DEPTH))
+                       changeDepth(cur, DEC_DEPTH);
+               else 
+                       setLayout(cur, tclass.defaultLayoutName());
                return;
+       }
 
        // a layout change may affect also the following paragraph
        recUndo(cur, cur.pit(), undoSpan(cur.pit()) - 1);
@@ -689,9 +730,10 @@ void Text::breakParagraph(Cursor & cur, bool inverse_logic)
                cpar.eraseChar(cur.pos(), cur.buffer()->params().trackChanges);
 
        // What should the layout for the new paragraph be?
-       bool keep_layout = inverse_logic ? 
-               !layout.isEnvironment() 
-               : layout.isEnvironment();
+       bool keep_layout = layout.isEnvironment() 
+               || (layout.isParagraph() && layout.parbreak_is_newline);
+       if (inverse_logic)
+               keep_layout = !keep_layout;
 
        // We need to remember this before we break the paragraph, because
        // that invalidates the layout variable
@@ -724,10 +766,9 @@ void Text::breakParagraph(Cursor & cur, bool inverse_logic)
                        break; // the character couldn't be deleted physically due to change tracking
        }
 
-       cur.buffer()->updateLabels();
-
        // A singlePar update is not enough in this case.
-       cur.updateFlags(Update::Force);
+       cur.screenUpdateFlags(Update::Force);
+       cur.forceBufferUpdate();
 
        // This check is necessary. Otherwise the new empty paragraph will
        // be deleted automatically. And it is more friendly for the user!
@@ -739,12 +780,12 @@ void Text::breakParagraph(Cursor & cur, bool inverse_logic)
 
 
 // needed to insert the selection
-void Text::insertStringAsLines(DocIterator const & dit, docstring const & str,
+void Text::insertStringAsLines(Cursor & cur, docstring const & str,
                Font const & font)
 {
        BufferParams const & bparams = owner_->buffer().params();
-       pit_type pit = dit.pit();
-       pos_type pos = dit.pos();
+       pit_type pit = cur.pit();
+       pos_type pos = cur.pos();
 
        // insert the string, don't insert doublespace
        bool space_inserted = true;
@@ -786,12 +827,13 @@ void Text::insertStringAsLines(DocIterator const & dit, docstring const & str,
                        space_inserted = (*cit == ' ');
                }
        }
+       setCursor(cur, pit, pos);
 }
 
 
 // turn double CR to single CR, others are converted into one
 // blank. Then insertStringAsLines is called
-void Text::insertStringAsParagraphs(DocIterator const & dit, docstring const & str,
+void Text::insertStringAsParagraphs(Cursor & cur, docstring const & str,
                Font const & font)
 {
        docstring linestr = str;
@@ -813,7 +855,7 @@ void Text::insertStringAsParagraphs(DocIterator const & dit, docstring const & s
                        newline_inserted = false;
                }
        }
-       insertStringAsLines(dit, linestr, font);
+       insertStringAsLines(cur, linestr, font);
 }
 
 
@@ -840,7 +882,7 @@ void Text::insertChar(Cursor & cur, char_type c)
                static docstring const number_seperators = from_ascii(".,:");
 
                if (cur.current_font.fontInfo().number() == FONT_ON) {
-                       if (!isDigit(c) && !contains(number_operators, c) &&
+                       if (!isDigitASCII(c) && !contains(number_operators, c) &&
                            !(contains(number_seperators, c) &&
                              cur.pos() != 0 &&
                              cur.pos() != cur.lastpos() &&
@@ -848,7 +890,7 @@ void Text::insertChar(Cursor & cur, char_type c)
                              tm.displayFont(pit, cur.pos() - 1).fontInfo().number() == FONT_ON)
                           )
                                number(cur); // Set current_font.number to OFF
-               } else if (isDigit(c) &&
+               } else if (isDigitASCII(c) &&
                           cur.real_current_font.isVisibleRightToLeft()) {
                        number(cur); // Set current_font.number to ON
 
@@ -925,23 +967,17 @@ void Text::insertChar(Cursor & cur, char_type c)
        // disable the double-space checking
        if (!freeSpacing && isLineSeparatorChar(c)) {
                if (cur.pos() == 0) {
-                       static bool sent_space_message = false;
-                       if (!sent_space_message) {
-                               cur.message(_("You cannot insert a space at the "
-                                                          "beginning of a paragraph. Please read the Tutorial."));
-                               sent_space_message = true;
-                       }
+                       cur.message(_(
+                                       "You cannot insert a space at the "
+                                       "beginning of a paragraph. Please read the Tutorial."));
                        return;
                }
                LASSERT(cur.pos() > 0, /**/);
                if ((par.isLineSeparator(cur.pos() - 1) || par.isNewline(cur.pos() - 1))
-                   && !par.isDeleted(cur.pos() - 1)) {
-                       static bool sent_space_message = false;
-                       if (!sent_space_message) {
-                               cur.message(_("You cannot type two spaces this way. "
-                                                          "Please read the Tutorial."));
-                               sent_space_message = true;
-                       }
+                               && !par.isDeleted(cur.pos() - 1)) {
+                       cur.message(_(
+                                       "You cannot type two spaces this way. "
+                                       "Please read the Tutorial."));
                        return;
                }
        }
@@ -950,7 +986,7 @@ void Text::insertChar(Cursor & cur, char_type c)
                cur.buffer()->params().trackChanges);
        cur.checkBufferStructure();
 
-//             cur.updateFlags(Update::Force);
+//             cur.screenUpdateFlags(Update::Force);
        bool boundary = cur.boundary()
                || tm.isRTLBoundary(cur.pit(), cur.pos() + 1);
        setCursor(cur, cur.pit(), cur.pos() + 1, false, boundary);
@@ -1239,7 +1275,11 @@ void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
 
                pos_type left  = (pit == begPit ? begPos : 0);
                pos_type right = (pit == endPit ? endPos : parSize);
-
+               
+               if (left == right)
+                       // there is no change here
+                       continue;
+               
                if (op == ACCEPT) {
                        pars_[pit].acceptChanges(left, right);
                } else {
@@ -1300,8 +1340,8 @@ void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
        cur.finishUndo();
        cur.clearSelection();
        setCursorIntern(cur, begPit, begPos);
-       cur.updateFlags(Update::Force);
-       cur.buffer()->updateLabels();
+       cur.screenUpdateFlags(Update::Force);
+       cur.forceBufferUpdate();
 }
 
 
@@ -1452,9 +1492,9 @@ bool Text::handleBibitems(Cursor & cur)
                cur.recordUndo(ATOMIC_UNDO, prevcur.pit());
                mergeParagraph(bufparams, cur.text()->paragraphs(),
                                                        prevcur.pit());
-               cur.buffer()->updateLabels();
+               cur.forceBufferUpdate();
                setCursorIntern(cur, prevcur.pit(), prevcur.pos());
-               cur.updateFlags(Update::Force);
+               cur.screenUpdateFlags(Update::Force);
                return true;
        } 
 
@@ -1480,7 +1520,7 @@ bool Text::erase(Cursor & cur)
                        cur.top().forwardPos();
 
                if (was_inset)
-                       cur.buffer()->updateLabels();
+                       cur.forceBufferUpdate();
                else
                        cur.checkBufferStructure();
                needsUpdate = true;
@@ -1556,7 +1596,7 @@ bool Text::backspacePos0(Cursor & cur)
        }
 
        if (needsUpdate) {
-               cur.buffer()->updateLabels();
+               cur.forceBufferUpdate();
                setCursorIntern(cur, prevcur.pit(), prevcur.pos());
        }
 
@@ -1596,7 +1636,7 @@ bool Text::backspace(Cursor & cur)
                bool const was_inset = cur.paragraph().isInset(cur.pos());
                cur.paragraph().eraseChar(cur.pos(), cur.buffer()->params().trackChanges);
                if (was_inset)
-                       cur.buffer()->updateLabels();
+                       cur.forceBufferUpdate();
                else
                        cur.checkBufferStructure();
        }
@@ -1607,7 +1647,7 @@ bool Text::backspace(Cursor & cur)
        needsUpdate |= handleBibitems(cur);
 
        // A singlePar update is not enough in this case.
-//             cur.updateFlags(Update::Force);
+//             cur.screenUpdateFlags(Update::Force);
        setCursor(cur.top(), cur.pit(), cur.pos());
 
        return needsUpdate;
@@ -1637,7 +1677,17 @@ bool Text::dissolveInset(Cursor & cur)
        spit += cur.pit();
        Buffer & b = *cur.buffer();
        cur.paragraph().eraseChar(cur.pos(), b.params().trackChanges);
+
        if (!plist.empty()) {
+               // see bug 7319
+               // we clear the cache so that we won't get conflicts with labels
+               // that get pasted into the buffer. we should update this before
+               // its being empty matters. if not (i.e., if we encounter bugs),
+               // then this should instead be:
+               //        cur.buffer().updateBuffer();
+               // but we'll try the cheaper solution here.
+               cur.buffer()->clearReferenceCache();
+
                // ERT paragraphs have the Language latex_language.
                // This is invalid outside of ERT, so we need to
                // change it to the buffer language.
@@ -1651,10 +1701,9 @@ bool Text::dissolveInset(Cursor & cur)
                // restore position
                cur.pit() = min(cur.lastpit(), spit);
                cur.pos() = min(cur.lastpos(), spos);
-       } else
-               // this is the least that needs to be done (bug 6003)
-               // in the above case, pasteParagraphList handles this
-               cur.buffer()->updateLabels();
+       }
+
+       cur.forceBufferUpdate();
 
        // Ensure the current language is set correctly (bug 6292)
        cur.text()->setCursor(cur, cur.pit(), cur.pos());
@@ -1841,10 +1890,11 @@ docstring Text::getPossibleLabel(Cursor const & cur) const
 
        docstring text;
        docstring par_text = pars_[pit].asString();
-       string piece;
-       // the return string of math matrices might contain linebreaks
+
+       // The return string of math matrices might contain linebreaks
        par_text = subst(par_text, '\n', '-');
-       for (int i = 0; i < lyxrc.label_init_length; ++i) {
+       int const numwords = 3;
+       for (int i = 0; i < numwords; ++i) {
                if (par_text.empty())
                        break;
                docstring head;
@@ -1854,12 +1904,13 @@ docstring Text::getPossibleLabel(Cursor const & cur) const
                        text += '-';
                text += head;
        }
+       
+       // Make sure it isn't too long
+       unsigned int const max_label_length = 32;
+       if (text.size() > max_label_length)
+               text.resize(max_label_length);
 
-       // No need for a prefix if the user said so.
-       if (lyxrc.label_init_length <= 0)
-               return text;
-
-       // Will contain the label type.
+       // Will contain the label prefix.
        docstring name;
 
        // For section, subsection, etc...
@@ -1871,40 +1922,29 @@ docstring Text::getPossibleLabel(Cursor const & cur) const
                }
        }
        if (layout->latextype != LATEX_PARAGRAPH)
-               name = from_ascii(layout->latexname());
+               name = layout->refprefix;
 
-       // for captions, we just take the caption type
+       // For captions, we just take the caption type
        Inset * caption_inset = cur.innerInsetOfType(CAPTION_CODE);
-       if (caption_inset)
-               name = from_ascii(static_cast<InsetCaption *>(caption_inset)->type());
-
-       // If none of the above worked, we'll see if we're inside various
-       // types of insets and take our abbreviation from them.
-       if (name.empty()) {
-               InsetCode const codes[] = {
-                       FLOAT_CODE,
-                       WRAP_CODE,
-                       FOOT_CODE
-               };
-               for (unsigned int i = 0; i < (sizeof codes / sizeof codes[0]); ++i) {
-                       Inset * float_inset = cur.innerInsetOfType(codes[i]);
-                       if (float_inset) {
-                               name = float_inset->name();
-                               break;
-                       }
+       if (caption_inset) {
+               string const & ftype = static_cast<InsetCaption *>(caption_inset)->type();
+               FloatList const & fl = cur.buffer()->params().documentClass().floats();
+               if (fl.typeExist(ftype)) {
+                       Floating const & flt = fl.getType(ftype);
+                       name = from_utf8(flt.refPrefix());
                }
+               if (name.empty())
+                       name = from_utf8(ftype.substr(0,3));
        }
 
-       // Create a correct prefix for prettyref
-       if (name == "theorem")
-               name = from_ascii("thm");
-       else if (name == "Foot")
-               name = from_ascii("fn");
-       else if (name == "listing")
-               name = from_ascii("lst");
+       // If none of the above worked, see if the inset knows.
+       if (name.empty()) {
+               InsetLayout const & il = cur.inset().getLayout();
+               name = il.refprefix();
+       }
 
        if (!name.empty())
-               text = name.substr(0, 3) + ':' + text;
+               text = name + ':' + text;
 
        return text;
 }
@@ -1928,6 +1968,15 @@ docstring Text::asString(pit_type beg, pit_type end, int options) const
 }
 
 
+void Text::forToc(docstring & os, size_t maxlen, bool shorten) const
+{
+       LASSERT(maxlen > 10, maxlen = 30);
+       for (size_t i = 0; i != pars_.size() && os.length() < maxlen; ++i)
+               pars_[i].forToc(os, maxlen);
+       if (shorten && os.length() >= maxlen)
+               os = os.substr(0, maxlen - 3) + from_ascii("...");
+}
+
 
 void Text::charsTranspose(Cursor & cur)
 {
@@ -2034,8 +2083,8 @@ bool Text::insertCompletion(Cursor & cur, docstring const & s, bool /*finished*/
        LASSERT(cur.bv().cursor() == cur, /**/);
        cur.insert(s);
        cur.bv().cursor() = cur;
-       if (!(cur.disp_.update() & Update::Force))
-               cur.updateFlags(cur.disp_.update() | Update::SinglePar);
+       if (!(cur.result().screenUpdate() & Update::Force))
+               cur.screenUpdateFlags(cur.result().screenUpdate() | Update::SinglePar);
        return true;
 }