]> git.lyx.org Git - lyx.git/blobdiff - src/BufferView2.C
layout as string
[lyx.git] / src / BufferView2.C
index e9274995557b6aa9ebdcb987124a013cea92e630..a07916d07e7f738cb69f727bba3dc5c5434b37ea 100644 (file)
@@ -8,40 +8,45 @@
  *
  * ====================================================== */
 
-#include <fstream>
-#include <algorithm>
-
 #include <config.h>
 
 #include "BufferView.h"
 #include "buffer.h"
 #include "lyxcursor.h"
 #include "lyxtext.h"
-#include "insets/inseterror.h"
 #include "LyXView.h"
 #include "bufferlist.h"
-#include "support/FileInfo.h"
 #include "lyxscreen.h"
-#include "support/filetools.h"
-#include "lyx_gui_misc.h"
 #include "LaTeX.h"
 #include "BufferView_pimpl.h"
-#include "insets/insetcommand.h" //ChangeRefs
-#include "support/lyxfunctional.h" //equal_1st_in_pair
 #include "language.h"
 #include "gettext.h"
 #include "undo_funcs.h"
 #include "debug.h"
 #include "iterators.h"
 
+#include "frontends/Alert.h"
+
+#include "insets/insetcommand.h" //ChangeRefs
+#include "insets/inseterror.h"
+
+#include "support/FileInfo.h"
+#include "support/filetools.h"
+#include "support/lyxfunctional.h" //equal_1st_in_pair
+#include "support/types.h"
+#include "support/lyxalgo.h" // lyx_count
+
+#include <fstream>
+
 extern BufferList bufferlist;
 
+using lyx::pos_type;
+
 using std::pair;
 using std::endl;
 using std::ifstream;
 using std::vector;
 using std::find;
-using std::count;
 using std::count_if;
 
 
@@ -63,7 +68,7 @@ bool BufferView::insertLyXFile(string const & filen)
        FileInfo const fi(fname);
 
        if (!fi.readable()) {
-               WriteAlert(_("Error!"),
+               Alert::alert(_("Error!"),
                           _("Specified file is unreadable: "),
                           MakeDisplayPath(fname, 50));
                return false;
@@ -73,7 +78,7 @@ bool BufferView::insertLyXFile(string const & filen)
 
        ifstream ifs(fname.c_str());
        if (!ifs) {
-               WriteAlert(_("Error!"),
+               Alert::alert(_("Error!"),
                           _("Cannot open specified file: "),
                           MakeDisplayPath(fname, 50));
                return false;
@@ -102,32 +107,136 @@ bool BufferView::insertLyXFile(string const & filen)
 
 bool BufferView::removeAutoInsets()
 {
-       Paragraph * par = buffer()->paragraph;
-
-       LyXCursor tmpcursor = text->cursor;
-       LyXCursor cursor;
+       // keep track of which pos and par the cursor was on
+       Paragraph * cursor_par = text->cursor.par();
+       Paragraph * cursor_par_prev = cursor_par ? cursor_par->previous() : 0;
+       Paragraph * cursor_par_next = cursor_par ? cursor_par->next() : 0;
+       pos_type cursor_pos = text->cursor.pos();
+
+       bool found = false;
+
+       // Trap the deletion of the paragraph the cursor is in.
+       // Iterate until we find a paragraph that won't be immediately deleted.
+       // In reality this should mean we only execute the body of the while
+       // loop once at most.  However for safety we iterate rather than just
+       // make this an if () conditional.
+       while ((cursor_par_prev || cursor_par_next)
+              && text->setCursor(this,
+                                 cursor_par_prev ? cursor_par_prev : cursor_par_next,
+                                 0)) {
+               // We just removed cursor_par so have to fix the "cursor"
+               if (cursor_par_prev) {
+                       // '.' = cursor_par
+                       //  a -> a.
+                       // .
+                       cursor_par = cursor_par_prev;
+                       cursor_pos = cursor_par->size();
+               } else {
+                       // .  -> .a
+                       //  a
+                       cursor_par = cursor_par_next;
+                       cursor_pos = 0;
+               }
+               cursor_par_prev = cursor_par->previous();
+               cursor_par_next = cursor_par->next();
+       }
 
-       bool a = false;
+       // Iterate through the paragraphs removing autoDelete insets as we go.
+       // If the paragraph ends up empty after all the autoDelete insets are
+       // removed that paragraph will be removed by the next setCursor() call.
+       ParIterator it = buffer()->par_iterator_begin();
+       ParIterator end = buffer()->par_iterator_end();
+       for (; it != end; ++it) {
+               Paragraph * par = *it;
+               Paragraph * par_prev = par ? par->previous() : 0;
+               bool removed = false;
+
+               if (text->setCursor(this, par, 0)
+                   && cursor_par == par_prev) {
+                       // The previous setCursor line was deleted and that
+                       // was the cursor_par line.  This can only happen if an
+                       // error box was the sole item on cursor_par.
+                       // It is possible for cursor_par_prev to be stray if
+                       // the line it pointed to only had a error box on it
+                       // so we have to set it to a known correct value.
+                       // This is often the same value it already had.
+                       cursor_par_prev = par->previous();
+                       if (cursor_par_prev) {
+                               // '|' = par, '.' = cursor_par, 'E' = error box
+                               // First step below may occur before while{}
+                               //  a    |a      a     a     a.
+                               //  E -> .E -> |.E -> .  -> |b
+                               // .      b      b    |b
+                               //  b
+                               cursor_par = cursor_par_prev;
+                               cursor_pos = cursor_par_prev->size();
+                               cursor_par_prev = cursor_par->previous();
+                               // cursor_par_next remains the same 
+                       } else if (cursor_par_next) {
+                               // First step below may occur before while{}
+                               // .
+                               //  E -> |.E -> |.  -> . -> .|a
+                               //  a      a      a    |a
+                               cursor_par = cursor_par_next;
+                               cursor_pos = 0;
+                               // cursor_par_prev remains unset
+                               cursor_par_next = cursor_par->next();
+                       } else {
+                               // I can't find a way to trigger this
+                               // so it should be unreachable code
+                               // unless the buffer is corrupted.
+                               lyxerr << "BufferView::removeAutoInsets() is bad\n";
+                       }
+               }
 
-       while (par) {
-               // this has to be done before the delete
-               text->setCursor(this, cursor, par, 0);
-               if (par->autoDeleteInsets()){
-                       a = true;
-                       text->redoParagraphs(this, cursor,
-                                            cursor.par()->next());
-                       text->fullRebreak(this);
+               Paragraph::inset_iterator pit = par->inset_iterator_begin();
+               Paragraph::inset_iterator pend = par->inset_iterator_end();
+               while (pit != pend) {
+                       if (pit->autoDelete()) {
+                               removed = true;
+                               pos_type const pos = pit.getPos();
+
+                               par->erase(pos);
+                               // We just invalidated par's inset iterators so
+                               // we get the next valid iterator position
+                               pit = par->InsetIterator(pos);
+                               // and ensure we have a valid end iterator.
+                               pend = par->inset_iterator_end();
+
+                               if (cursor_par == par) {
+                                       // update the saved cursor position
+                                       if (cursor_pos > pos)
+                                               --cursor_pos;
+                               }
+                       } else {
+                               ++pit;
+                       }
+               }
+               if (removed) {
+                       found = true;
+                       text->redoParagraph(this);
                }
-               par = par->next();
        }
 
-       // avoid forbidden cursor positions caused by error removing
-       if (tmpcursor.pos() > tmpcursor.par()->size())
-               tmpcursor.pos(tmpcursor.par()->size());
+       // It is possible that the last line is empty if it was cursor_par
+       // and/or only had an error inset on it.  So we set the cursor to the
+       // start of the doc to force its removal and ensure a valid saved cursor
+       if (text->setCursor(this, text->ownerParagraph(), 0)
+           && 0 == cursor_par_next) {
+               cursor_par = cursor_par_prev;
+               cursor_pos = cursor_par->size();
+       } else if (cursor_pos > cursor_par->size()) {
+               // Some C-Enter lines were removed by the setCursor call which
+               // then invalidated cursor_pos. It could still be "wrong" because
+               // the cursor may appear to have jumped but since we collapsed
+               // some C-Enter lines this should be a reasonable compromise.
+               cursor_pos = cursor_par->size();
+       }
 
-       text->setCursorIntern(this, tmpcursor.par(), tmpcursor.pos());
+       // restore the original cursor in its corrected location.
+       text->setCursorIntern(this, cursor_par, cursor_pos);
 
-       return a;
+       return found;
 }
 
 
@@ -136,9 +245,9 @@ void BufferView::insertErrors(TeXErrors & terr)
        // Save the cursor position
        LyXCursor cursor = text->cursor;
 
-       for (TeXErrors::Errors::const_iterator cit = terr.begin();
-            cit != terr.end();
-            ++cit) {
+       TeXErrors::Errors::const_iterator cit = terr.begin();
+       TeXErrors::Errors::const_iterator end = terr.end();
+       for (; cit != end; ++cit) {
                string const desctext(cit->error_desc);
                string const errortext(cit->error_text);
                string const msgtxt = desctext + '\n' + errortext;
@@ -155,7 +264,7 @@ void BufferView::insertErrors(TeXErrors & terr)
                Paragraph * texrowpar = 0;
 
                if (tmpid == -1) {
-                       texrowpar = text->firstParagraph();
+                       texrowpar = text->ownerParagraph();
                        tmppos = 0;
                } else {
                        texrowpar = buffer()->getParFromID(tmpid);
@@ -184,7 +293,7 @@ void BufferView::setCursorFromRow(int row)
        Paragraph * texrowpar;
 
        if (tmpid == -1) {
-               texrowpar = text->firstParagraph();
+               texrowpar = text->ownerParagraph();
                tmppos = 0;
        } else {
                texrowpar = buffer()->getParFromID(tmpid);
@@ -241,10 +350,12 @@ void BufferView::menuUndo()
 
 void BufferView::menuRedo()
 {
+#if 0 // this should not be here (Jug 20011206)
        if (theLockingInset()) {
                owner()->message(_("Redo not yet supported in math mode"));
                return;
-       }    
+       }
+#endif
    
        if (available()) {
                owner()->message(_("Redo"));
@@ -264,10 +375,6 @@ void BufferView::copyEnvironment()
 {
        if (available()) {
                text->copyEnvironmentType();
-               // clear the selection, even if mark_set
-               toggleSelection();
-               text->clearSelection();
-               update(text, BufferView::SELECT|BufferView::FITCUR);
                owner()->message(_("Paragraph environment type copied"));
        }
 }
@@ -287,12 +394,6 @@ void BufferView::copy()
 {
        if (available()) {
                text->copySelection(this);
-#if 0
-               // clear the selection, even if mark_set
-               toggleSelection();
-               text->clearSelection();
-               update(text, BufferView::SELECT|BufferView::FITCUR);
-#endif
                owner()->message(_("Copy"));
        }
 }
@@ -400,19 +501,53 @@ void BufferView::replaceWord(string const & replacestring)
 
 bool BufferView::lockInset(UpdatableInset * inset)
 {
-       if (!theLockingInset() && inset) {
-               theLockingInset(inset);
+       if (!inset)
+               return false;
+       // don't relock if we're already locked
+       if (theLockingInset() == inset)
                return true;
-       } else if (inset) {
-           return theLockingInset()->lockInsetInInset(this, inset);
+       if (!theLockingInset()) {
+               // first check if it's the inset under the cursor we want lock
+               // should be most of the time
+               char const c = text->cursor.par()->getChar(text->cursor.pos());
+               if (c == Paragraph::META_INSET) {
+                       Inset * in = text->cursor.par()->getInset(text->cursor.pos());
+                       if (inset == in) {
+                               theLockingInset(inset);
+                               return true;
+                       }
+               }
+               // Then do a deep look of the inset and lock the right one
+               Paragraph * par = buffer()->paragraph;
+               int const id = inset->id();
+               while(par) {
+                       Paragraph::inset_iterator it =
+                               par->inset_iterator_begin();
+                       Paragraph::inset_iterator const end =
+                               par->inset_iterator_end();
+                       for (; it != end; ++it) {
+                               if ((*it) == inset) {
+                                       text->setCursorIntern(this, par, it.getPos());
+                                       theLockingInset(inset);
+                                       return true;
+                               }
+                               if ((*it)->getInsetFromID(id)) {
+                                       text->setCursorIntern(this, par, it.getPos());
+                                       (*it)->edit(this);
+                                       return theLockingInset()->lockInsetInInset(this, inset);
+                               }
+                       }
+                       par = par->next();
+               }
+               return false;
        }
-       return false;
+       return theLockingInset()->lockInsetInInset(this, inset);
 }
 
 
 void BufferView::showLockedInsetCursor(int x, int y, int asc, int desc)
 {
-       if (available() && theLockingInset()) {
+       if (available() && theLockingInset() && !theLockingInset()->nodraw()) {
                LyXCursor cursor = text->cursor;
                Inset * locking_inset = theLockingInset()->getLockingInset();
 
@@ -460,13 +595,18 @@ void BufferView::fitLockedInsetCursor(int x, int y, int asc, int desc)
 
 int BufferView::unlockInset(UpdatableInset * inset)
 {
+       if (!inset)
+               return 0;
        if (inset && theLockingInset() == inset) {
                inset->insetUnlock(this);
                theLockingInset(0);
+               // make sure we update the combo !
+               owner()->setLayout(getLyXText()->cursor.par()->layout());
                finishUndo();
                return 0;
        } else if (inset && theLockingInset() &&
                   theLockingInset()->unlockInsetInInset(this, inset)) {
+               // owner inset has updated the layout combo 
                finishUndo();
                return 0;
        }
@@ -495,7 +635,7 @@ void BufferView::updateInset(Inset * inset, bool mark_dirty)
 bool BufferView::ChangeInsets(Inset::Code code,
                              string const & from, string const & to)
 {
-       bool flag = false;
+       bool need_update = false;
        LyXCursor cursor = text->cursor;
        LyXCursor tmpcursor = cursor;
        cursor.par(tmpcursor.par());
@@ -505,20 +645,22 @@ bool BufferView::ChangeInsets(Inset::Code code,
        for (ParIterator it = buffer()->par_iterator_begin();
             it != end; ++it) {
                Paragraph * par = *it;
-               bool flag2 = false;
+               bool changed_inset = false;
                for (Paragraph::inset_iterator it2 = par->inset_iterator_begin();
                     it2 != par->inset_iterator_end(); ++it2) {
                        if ((*it2)->lyxCode() == code) {
                                InsetCommand * inset = static_cast<InsetCommand *>(*it2);
                                if (inset->getContents() == from) {
                                        inset->setContents(to);
-                                       flag2 = true;
+                                       changed_inset = true;
                                }
                        }
                }
-               if (flag2) {
-                       flag = true;
-#warning Fix me
+               if (changed_inset) {
+                       need_update = true;
+#ifdef WITH_WARNINGS
+#warning FIXME
+#endif
                        // The test it.size()==1 was needed to prevent crashes.
                        // How to set the cursor corretly when it.size()>1 ??
                        if (it.size() == 1) {
@@ -530,7 +672,7 @@ bool BufferView::ChangeInsets(Inset::Code code,
                }
        }
        text->setCursorIntern(this, cursor.par(), cursor.pos());
-       return flag;
+       return need_update;
 }
 
 
@@ -538,19 +680,22 @@ bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
 {
        // Check if the label 'from' appears more than once
        vector<string> labels = buffer()->getLabelList();
-       if (count(labels.begin(), labels.end(), from) > 1)
+
+       if (lyx::count(labels.begin(), labels.end(), from) > 1)
                return false;
 
        return ChangeInsets(Inset::REF_CODE, from, to);
 }
 
 
-bool BufferView::ChangeCitationsIfUnique(string const & from, string const & to)
+bool BufferView::ChangeCitationsIfUnique(string const & from,
+                                        string const & to)
 {
-
-       vector<pair<string,string> > keys = buffer()->getBibkeyList();  
+       typedef pair<string, string> StringPair;
+       
+       vector<StringPair> keys = buffer()->getBibkeyList();    
        if (count_if(keys.begin(), keys.end(), 
-                    lyx::equal_1st_in_pair<string,string>(from)) 
+                    lyx::equal_1st_in_pair<StringPair>(from)) 
            > 1)
                return false;