]> git.lyx.org Git - lyx.git/blobdiff - src/CutAndPaste.C
reverse last change
[lyx.git] / src / CutAndPaste.C
index 40650a530b2ecdf2d5dd5d0f63aa1f4f0f6e333d..0f3a66c47aef613aa776324fe549e5395828ee4e 100644 (file)
@@ -1,31 +1,39 @@
 /* This file is part of
  * ======================================================
- * 
+ *
  *           LyX, The Document Processor
- *      
+ *
  *           Copyright 1995-2001 The LyX Team.
  *
  * ====================================================== */
 
 #include <config.h>
 
+#ifdef __GNUG__
+#pragma implementation
+#endif
+
 #include "CutAndPaste.h"
 #include "BufferView.h"
 #include "buffer.h"
 #include "paragraph.h"
-#include "insets/inseterror.h"
-#include "lyx_gui_misc.h"
+#include "ParagraphParameters.h"
+#include "lyxtext.h"
 #include "lyxcursor.h"
 #include "gettext.h"
 #include "iterators.h"
+#include "lyxtextclasslist.h"
+#include "undo_funcs.h"
+#include "paragraph_funcs.h"
+#include "debug.h"
 
-#ifdef __GNUG__
-#pragma implementation
-#endif
+#include "insets/inseterror.h"
+
+#include "BoostFormat.h"
 
+using std::endl;
 using std::pair;
 using lyx::pos_type;
-using lyx::layout_type;
 using lyx::textclass_type;
 
 extern BufferView * current_view;
@@ -51,6 +59,7 @@ extern BufferView * current_view;
 
 namespace {
 
+// FIXME: stupid name 
 Paragraph * buf = 0;
 textclass_type textclass = 0;
 
@@ -62,9 +71,9 @@ void DeleteBuffer()
 {
        if (!buf)
                return;
-       
+
        Paragraph * tmppar;
-       
+
        while (buf) {
                tmppar =  buf;
                buf = buf->next();
@@ -77,93 +86,113 @@ void DeleteBuffer()
 
 
 bool CutAndPaste::cutSelection(Paragraph * startpar, Paragraph ** endpar,
-                               int start, int & end, char tc, bool doclear,
+                              int start, int & end, char tc, bool doclear,
                                                           bool realcut)
 {
        if (!startpar || (start > startpar->size()))
                return false;
-       
-       if (realcut)
-               DeleteBuffer();
-       
-       textclass = tc;
-       
-       if (!(*endpar) || startpar == (*endpar)) {
-               // only within one paragraph
-               if (realcut)
-                       buf = new Paragraph;
-               pos_type i = start;
-               if (end > startpar->size())
-                       end = startpar->size();
-               for (; i < end; ++i) {
-                       if (realcut)
-                               startpar->copyIntoMinibuffer(*current_view->buffer(),
-                                                            start);
-                       startpar->erase(start);
-                       if (realcut)
-                               buf->insertFromMinibuffer(buf->size());
+
+       if (realcut) {
+               copySelection(startpar, *endpar, start, end, tc);
+       }
+
+       if (!endpar || startpar == *endpar) {
+               if (startpar->erase(start, end)) {
+                       // Some chars were erased, go to start to be safe
+                       end = start;
                }
-               end = start - 1;
-       } else {
-               // more than one paragraph
-               (*endpar)->breakParagraphConservative(current_view->buffer()->params,
-                                                     end);
-               *endpar = (*endpar)->next();
+               return true;
+       }
+       bool actually_erased = false;
+       // clear end/begin fragments of the first/last par in selection
+       actually_erased |= (startpar)->erase(start, startpar->size());
+       if ((*endpar)->erase(0, end)) {
+               actually_erased = true; 
                end = 0;
-               
-               startpar->breakParagraphConservative(current_view->buffer()->params,
-                                                    start);
-               
-               // store the selection
-               if (realcut) {
-                       buf = startpar->next();
-                       buf->previous(0);
-               } else {
-                       startpar->next()->previous(0);
-               }
-               (*endpar)->previous()->next(0);
-               
-               // cut the selection
-               startpar->next(*endpar);
-               
-               (*endpar)->previous(startpar);
-               
-               // the cut selection should begin with standard layout
-               if (realcut)
-                       buf->clear(); 
-               
-               // paste the paragraphs again, if possible
-               if (doclear)
-                       startpar->next()->stripLeadingSpaces(textclass);
-               if (startpar->hasSameLayout(startpar->next()) ||
-                   !startpar->next()->size()) {
-                       startpar->pasteParagraph(current_view->buffer()->params);
-                       (*endpar) = startpar; // this because endpar gets deleted here!
-               }
-               // this paragraph's are of noone's owner!
-               Paragraph * p = buf;
-               while (p) {
-                       p->setInsetOwner(0);
-                       p = p->next();
+       }
+       // Loop through the deleted pars if any, erasing as needed
+       Paragraph * pit = startpar->next();
+       while (1) {
+               // *endpar can be 0
+               if (!pit)
+                       break;
+               Paragraph * next = pit->next();
+               // "erase" the contents of the par
+               if (pit != *endpar) {
+                       actually_erased |= pit->erase(0, pit->size());
+
+                       // remove the par if it's now empty
+                       if (actually_erased) {
+                               pit->previous()->next(pit->next());
+                               if (next) {
+                                       next->previous(pit->previous());
+                               }
+                               lyxerr << "deleting pit " << pit << endl;
+        
+                               delete pit;
+                       }
                }
+               if (pit == *endpar)
+                       break;
+               pit = next;
+       }
+
+#if 0 // FIXME: why for cut but not copy ? 
+       // the cut selection should begin with standard layout
+       if (realcut) {
+               buf->params().clear();
+               buf->bibkey = 0;
+               buf->layout(textclasslist[buffer->params.textclass].defaultLayoutName());
+       }
+#endif 
+
+       if (!startpar->next())
+               return true;
+       Buffer * buffer = current_view->buffer();
+
+       if (doclear) {
+               startpar->next()->stripLeadingSpaces();
+       }
+
+       if (!actually_erased)
+               return true;
+       // paste the paragraphs again, if possible
+       if (startpar->hasSameLayout(startpar->next()) ||
+           startpar->next()->empty()) {
+               mergeParagraph(buffer->params, startpar);
+               // this because endpar gets deleted here!
+               (*endpar) = startpar;
        }
+
        return true;
 }
 
-
 bool CutAndPaste::copySelection(Paragraph * startpar, Paragraph * endpar,
                                int start, int end, char tc)
 {
        if (!startpar || (start > startpar->size()))
                return false;
-       
+
        DeleteBuffer();
-       
+
        textclass = tc;
-       
+
        if (!endpar || startpar == endpar) {
                // only within one paragraph
                buf = new Paragraph;
+               buf->layout(startpar->layout());
                pos_type i = start;
                if (end > startpar->size())
                        end = startpar->size();
@@ -177,21 +206,24 @@ bool CutAndPaste::copySelection(Paragraph * startpar, Paragraph * endpar,
                Paragraph * tmppar = startpar;
                buf = new Paragraph(*tmppar, false);
                Paragraph * tmppar2 = buf;
-               
+               tmppar2->cleanChanges();
+
                while (tmppar != endpar
                       && tmppar->next()) {
                        tmppar = tmppar->next();
                        tmppar2->next(new Paragraph(*tmppar, false));
                        tmppar2->next()->previous(tmppar2);
                        tmppar2 = tmppar2->next();
+                       // reset change info
+                       tmppar2->cleanChanges();
                }
                tmppar2->next(0);
-               
+
                // the buf paragraph is too big
                pos_type tmpi2 = start;
                for (; tmpi2; --tmpi2)
                        buf->erase(0);
-               
+
                // now tmppar 2 is too big, delete all after end
                tmpi2 = end;
                while (tmppar2->size() > tmpi2) {
@@ -209,23 +241,24 @@ bool CutAndPaste::copySelection(Paragraph * startpar, Paragraph * endpar,
 
 
 bool CutAndPaste::pasteSelection(Paragraph ** par, Paragraph ** endpar,
-                                 int & pos, char tc)
+                                int & pos, char tc)
 {
        if (!checkPastePossible(*par))
                return false;
-       
+
        if (pos > (*par)->size())
                pos = (*par)->size();
-       
+
+#if 0
        // Paragraph * tmpbuf;
        Paragraph * tmppar = *par;
        int tmppos = pos;
-       
+
        // There are two cases: cutbuffer only one paragraph or many
        if (!buf->next()) {
                // only within a paragraph
                Paragraph * tmpbuf = new Paragraph(*buf, false);
-               
+
                // Some provisions should be done here for checking
                // if we are inserting at the beginning of a
                // paragraph. If there are a space at the beginning
@@ -249,14 +282,16 @@ bool CutAndPaste::pasteSelection(Paragraph ** par, Paragraph ** endpar,
                buf = tmpbuf;
                *endpar = tmppar->next();
                pos = tmppos;
-       } else {
+       } else
+#endif
+       {
                // many paragraphs
-               
+
                // make a copy of the simple cut_buffer
                Paragraph * tmpbuf = buf;
                Paragraph * simple_cut_clone = new Paragraph(*tmpbuf, false);
                Paragraph * tmpbuf2 = simple_cut_clone;
-               
+
                while (tmpbuf->next()) {
                        tmpbuf = tmpbuf->next();
                        tmpbuf2->next(new Paragraph(*tmpbuf, false));
@@ -267,7 +302,34 @@ bool CutAndPaste::pasteSelection(Paragraph ** par, Paragraph ** endpar,
                // now remove all out of the buffer which is NOT allowed in the
                // new environment and set also another font if that is required
                tmpbuf = buf;
+               int depth_delta = (*par)->params().depth() - tmpbuf->params().depth();
+               // temporary set *par as previous of tmpbuf as we might have to realize
+               // the font.
+               tmpbuf->previous(*par);
+
+               // make sure there is no class difference
+               SwitchLayoutsBetweenClasses(textclass, tc, tmpbuf,
+                                           current_view->buffer()->params);
+
+               Paragraph::depth_type max_depth = (*par)->getMaxDepthAfter();
+
                while(tmpbuf) {
+                       // if we have a negative jump so that the depth would go below
+                       // 0 depth then we have to redo the delta to this new max depth
+                       // level so that subsequent paragraphs are aligned correctly to
+                       // this paragraph at level 0.
+                       if ((static_cast<int>(tmpbuf->params().depth()) + depth_delta) < 0)
+                               depth_delta = 0;
+                       // set the right depth so that we are not too deep or shallow.
+                       tmpbuf->params().depth(tmpbuf->params().depth() + depth_delta);
+                       if (tmpbuf->params().depth() > max_depth)
+                               tmpbuf->params().depth(max_depth);
+                       // only set this from the 2nd on as the 2nd depends for maxDepth
+                       // still on *par
+                       if (tmpbuf->previous() != (*par))
+                               max_depth = tmpbuf->getMaxDepthAfter();
+                       // set the inset owner of this paragraph
+                       tmpbuf->setInsetOwner((*par)->inInset());
                        for(pos_type i = 0; i < tmpbuf->size(); ++i) {
                                if (tmpbuf->getChar(i) == Paragraph::META_INSET) {
                                        if (!(*par)->insetAllowed(tmpbuf->getInset(i)->lyxCode()))
@@ -286,63 +348,61 @@ bool CutAndPaste::pasteSelection(Paragraph ** par, Paragraph ** endpar,
                        }
                        tmpbuf = tmpbuf->next();
                }
-               
-               // make sure there is no class difference
-               SwitchLayoutsBetweenClasses(textclass, tc, buf,
-                                           current_view->buffer()->params);
-               
+               // now reset it to 0
+               buf->previous(0);
+
                // make the buf exactly the same layout than
                // the cursor paragraph
                buf->makeSameLayout(*par);
-               
+
                // find the end of the buffer
                Paragraph * lastbuffer = buf;
                while (lastbuffer->next())
                        lastbuffer = lastbuffer->next();
-               
+
                bool paste_the_end = false;
-               
+
                // open the paragraph for inserting the buf
                // if necessary
                if (((*par)->size() > pos) || !(*par)->next()) {
-                       (*par)->breakParagraphConservative(current_view->buffer()->params,
-                                                          pos);
+                       breakParagraphConservative(
+                               current_view->buffer()->params, *par, pos);
                        paste_the_end = true;
                }
                // set the end for redoing later
                *endpar = (*par)->next()->next();
-               
+
                // paste it!
                lastbuffer->next((*par)->next());
                (*par)->next()->previous(lastbuffer);
-               
+
                (*par)->next(buf);
                buf->previous(*par);
-               
+
                if ((*par)->next() == lastbuffer)
                        lastbuffer = *par;
-               
-               (*par)->pasteParagraph(current_view->buffer()->params);
+
+               mergeParagraph(current_view->buffer()->params, *par);
                // store the new cursor position
                *par = lastbuffer;
                pos = lastbuffer->size();
                // maybe some pasting
                if (lastbuffer->next() && paste_the_end) {
                        if (lastbuffer->next()->hasSameLayout(lastbuffer)) {
-                               lastbuffer->pasteParagraph(current_view->buffer()->params);
+                               mergeParagraph(current_view->buffer()->params, lastbuffer);
                        } else if (!lastbuffer->next()->size()) {
                                lastbuffer->next()->makeSameLayout(lastbuffer);
-                               lastbuffer->pasteParagraph(current_view->buffer()->params);
+                               mergeParagraph(current_view->buffer()->params, lastbuffer);
                        } else if (!lastbuffer->size()) {
                                lastbuffer->makeSameLayout(lastbuffer->next());
-                               lastbuffer->pasteParagraph(current_view->buffer()->params);
+                               mergeParagraph(current_view->buffer()->params, lastbuffer);
                        } else
-                               lastbuffer->next()->stripLeadingSpaces(tc);
+                               lastbuffer->next()->stripLeadingSpaces();
                }
                // restore the simple cut buffer
                buf = simple_cut_clone;
        }
-       
+
        return true;
 }
 
@@ -351,7 +411,7 @@ int CutAndPaste::nrOfParagraphs()
 {
        if (!buf)
                return 0;
-       
+
        int n = 1;
        Paragraph * tmppar = buf;
        while (tmppar->next()) {
@@ -365,39 +425,55 @@ int CutAndPaste::nrOfParagraphs()
 int CutAndPaste::SwitchLayoutsBetweenClasses(textclass_type c1,
                                             textclass_type c2,
                                             Paragraph * par,
-                                            BufferParams const & bparams)
+                                            BufferParams const & /*bparams*/)
 {
        int ret = 0;
        if (!par || c1 == c2)
                return ret;
 
+       LyXTextClass const & tclass1 = textclasslist[c1];
+       LyXTextClass const & tclass2 = textclasslist[c2];
        ParIterator end = ParIterator();
        for (ParIterator it = ParIterator(par); it != end; ++it) {
                par = *it;
-               string const name = textclasslist.NameOfLayout(c1, par->layout);
-               int lay = 0;
-               pair<bool, layout_type> pp =
-                       textclasslist.NumberOfLayout(c2, name);
-               if (pp.first) {
-                       lay = pp.second;
-               } else {
-                       // not found: use default layout "Standard" (0)
-                       lay = 0;
-               }
-               par->layout = lay;
-               
-               if (name != textclasslist.NameOfLayout(c2, par->layout)) {
+               string const name = par->layout()->name();
+               bool hasLayout = tclass2.hasLayout(name);
+
+               if (hasLayout)
+                       par->layout(tclass2[name]);
+               else
+                       par->layout(tclass2.defaultLayout());
+
+               if (!hasLayout && name != tclass1.defaultLayoutName()) {
                        ++ret;
+#if USE_BOOST_FORMAT
+                       boost::format fmt(_("Layout had to be changed from\n"
+                                           "%1$s to %2$s\n"
+                                           "because of class conversion from\n"
+                                           "%3$s to %4$s"));
+                       fmt     % name
+                               % par->layout()->name()
+                               % tclass1.name()
+                               % tclass2.name();
+
+                       string const s = fmt.str();
+#else
                        string const s = _("Layout had to be changed from\n")
                                + name + _(" to ")
-                               + textclasslist.NameOfLayout(c2, par->layout)
+                               + par->layout()->name()
                                + _("\nbecause of class conversion from\n")
-                               + textclasslist.NameOfClass(c1) + _(" to ")
-                               + textclasslist.NameOfClass(c2);
+                               + tclass1.name() + _(" to ")
+                               + tclass2.name();
+#endif
+                       freezeUndo();
                        InsetError * new_inset = new InsetError(s);
-                       par->insertInset(0, new_inset,
-                                        LyXFont(LyXFont::ALL_INHERIT,
-                                                bparams.language));
+                       LyXText * txt = current_view->getLyXText();
+                       LyXCursor cur = txt->cursor;
+                       txt->setCursorIntern(current_view, par, 0);
+                       txt->insertInset(current_view, new_inset);
+                       txt->fullRebreak(current_view);
+                       txt->setCursorIntern(current_view, cur.par(), cur.pos());
+                       unFreezeUndo();
                }
        }
        return ret;
@@ -407,6 +483,6 @@ int CutAndPaste::SwitchLayoutsBetweenClasses(textclass_type c1,
 bool CutAndPaste::checkPastePossible(Paragraph *)
 {
        if (!buf) return false;
-       
+
        return true;
 }