-/* This file is part of
- * ======================================================
- *
- * LyX, The Document Processor
- *
- * Copyright 1995 Matthias Ettrich
- * Copyright 1995-2001 The LyX Team.
+/**
+ * \file paragraph_funcs.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
*
- * ====================================================== */
+ * \author Lars Gullik Bjønnes
+ *
+ * Full author contact details are available in file CREDITS.
+ */
#include <config.h>
#include "paragraph_funcs.h"
-#include "buffer.h"
-#include "ParagraphParameters.h"
-#include "lyxtextclasslist.h"
+
+#include "bufferparams.h"
+#include "lyxtext.h"
+#include "paragraph_pimpl.h"
#include "debug.h"
-using lyx::pos_type;
-//using lyx::layout_type;
+
+namespace lyx {
+
+using std::string;
using std::endl;
+static bool moveItem(Paragraph & fromPar, pos_type fromPos,
+ Paragraph & toPar, pos_type toPos, BufferParams const & params)
+{
+ // Note: moveItem() does not honour change tracking!
+ // Therefore, it should only be used for breaking and merging paragraphs
+
+ Paragraph::value_type const tmpChar = fromPar.getChar(fromPos);
+ LyXFont const tmpFont = fromPar.getFontSettings(params, fromPos);
+ Change const tmpChange = fromPar.lookupChange(fromPos);
+
+ if (tmpChar == Paragraph::META_INSET) {
+ InsetBase * tmpInset = 0;
+ if (fromPar.getInset(fromPos)) {
+ // the inset is not in the paragraph any more
+ tmpInset = fromPar.insetlist.release(fromPos);
+ }
+
+ fromPar.eraseChar(fromPos, false);
+
+ if (!toPar.insetAllowed(tmpInset->lyxCode())) {
+ delete tmpInset;
+ return false;
+ }
+
+ toPar.insertInset(toPos, tmpInset, tmpFont, tmpChange);
+ } else {
+ fromPar.eraseChar(fromPos, false);
+ toPar.insertChar(toPos, tmpChar, tmpFont, tmpChange);
+ }
+
+ return true;
+}
+
+
void breakParagraph(BufferParams const & bparams,
- Paragraph * par,
- pos_type pos,
- int flag)
+ ParagraphList & pars, pit_type par_offset, pos_type pos, int flag)
{
- // create a new paragraph
- Paragraph * tmp = new Paragraph(par);
+ // create a new paragraph, and insert into the list
+ ParagraphList::iterator tmp =
+ pars.insert(boost::next(pars.begin(), par_offset + 1),
+ Paragraph());
+
+ Paragraph & par = pars[par_offset];
+
// without doing that we get a crash when typing <Return> at the
// end of a paragraph
tmp->layout(bparams.getLyXTextClass().defaultLayout());
// remember to set the inset_owner
- tmp->setInsetOwner(par->inInset());
-
- // this is an idea for a more userfriendly layout handling, I will
- // see what the users say
-
+ tmp->setInsetOwner(par.inInset());
+
// layout stays the same with latex-environments
if (flag) {
- tmp->layout(par->layout());
- tmp->setLabelWidthString(par->params().labelWidthString());
+ tmp->layout(par.layout());
+ tmp->setLabelWidthString(par.params().labelWidthString());
+ tmp->params().depth(par.params().depth());
+ } else if (par.params().depth() > 0) {
+ Paragraph const & hook = pars[outerHook(par_offset, pars)];
+ tmp->layout(hook.layout());
+ // not sure the line below is useful
+ tmp->setLabelWidthString(par.params().labelWidthString());
+ tmp->params().depth(hook.params().depth());
}
- bool isempty = (par->layout()->keepempty && par->empty());
-
- if (!isempty && (par->size() > pos || par->empty() || flag == 2)) {
- tmp->layout(par->layout());
- tmp->params().align(par->params().align());
- tmp->setLabelWidthString(par->params().labelWidthString());
-
- tmp->params().lineBottom(par->params().lineBottom());
- par->params().lineBottom(false);
- tmp->params().pagebreakBottom(par->params().pagebreakBottom());
- par->params().pagebreakBottom(false);
- tmp->params().spaceBottom(par->params().spaceBottom());
- par->params().spaceBottom(VSpace(VSpace::NONE));
-
- tmp->params().depth(par->params().depth());
- tmp->params().noindent(par->params().noindent());
-
- // copy everything behind the break-position
+ bool const isempty = (par.allowEmpty() && par.empty());
+
+ if (!isempty && (par.size() > pos || par.empty() || flag == 2)) {
+ tmp->layout(par.layout());
+ tmp->params().align(par.params().align());
+ tmp->setLabelWidthString(par.params().labelWidthString());
+
+ tmp->params().depth(par.params().depth());
+ tmp->params().noindent(par.params().noindent());
+
+ // move everything behind the break position
// to the new paragraph
- pos_type pos_end = par->size() - 1;
- pos_type i = pos;
- pos_type j = pos;
- for (; i <= pos_end; ++i) {
- par->cutIntoMinibuffer(bparams, i);
- if (tmp->insertFromMinibuffer(j - pos))
+
+ /* Note: if !keepempty, empty() == true, then we reach
+ * here with size() == 0. So pos_end becomes - 1. This
+ * doesn't cause problems because both loops below
+ * enforce pos <= pos_end and 0 <= pos
+ */
+ pos_type pos_end = par.size() - 1;
+
+ for (pos_type i = pos, j = 0; i <= pos_end; ++i) {
+ if (moveItem(par, pos, *tmp, j, bparams)) {
++j;
- }
- for (i = pos_end; i >= pos; --i) {
- par->erase(i);
+ }
}
}
-
- // just an idea of me
- if (!pos) {
- tmp->params().lineTop(par->params().lineTop());
- tmp->params().pagebreakTop(par->params().pagebreakTop());
- tmp->params().spaceTop(par->params().spaceTop());
- tmp->bibkey = par->bibkey;
-
- par->bibkey = 0;
- par->params().clear();
-
- par->layout(bparams.getLyXTextClass().defaultLayout());
-
- // layout stays the same with latex-environments
- if (flag) {
- par->layout(tmp->layout());
- par->setLabelWidthString(tmp->params().labelWidthString());
- par->params().depth(tmp->params().depth());
+
+ // Move over the end-of-par change information
+ tmp->setChange(tmp->size(), par.lookupChange(par.size()));
+ par.setChange(par.size(), Change(bparams.trackChanges ?
+ Change::INSERTED : Change::UNCHANGED));
+
+ if (pos) {
+ // Make sure that we keep the language when
+ // breaking paragraph.
+ if (tmp->empty()) {
+ LyXFont changed = tmp->getFirstFontSettings(bparams);
+ LyXFont old = par.getFontSettings(bparams, par.size());
+ changed.setLanguage(old.language());
+ tmp->setFont(0, changed);
}
+
+ return;
+ }
+
+ if (!isempty) {
+ par.params().clear();
+ par.layout(bparams.getLyXTextClass().defaultLayout());
+ }
+
+ // layout stays the same with latex-environments
+ if (flag) {
+ par.layout(tmp->layout());
+ par.setLabelWidthString(tmp->params().labelWidthString());
+ par.params().depth(tmp->params().depth());
}
}
void breakParagraphConservative(BufferParams const & bparams,
- Paragraph * par,
- pos_type pos)
+ ParagraphList & pars, pit_type par_offset, pos_type pos)
{
// create a new paragraph
- Paragraph * tmp = new Paragraph(par);
- tmp->makeSameLayout(par);
-
- // When can pos > Last()?
- // I guess pos == Last() is possible.
- if (par->size() > pos) {
- // copy everything behind the break-position to the new
- // paragraph
- pos_type pos_end = par->size() - 1;
-
- for (pos_type i = pos, j = pos; i <= pos_end; ++i) {
- par->cutIntoMinibuffer(bparams, i);
- if (tmp->insertFromMinibuffer(j - pos))
+ Paragraph & tmp = *pars.insert(boost::next(pars.begin(), par_offset + 1),
+ Paragraph());
+ Paragraph & par = pars[par_offset];
+
+ tmp.makeSameLayout(par);
+
+ BOOST_ASSERT(pos <= par.size());
+
+ if (pos < par.size()) {
+ // move everything behind the break position to the new paragraph
+ pos_type pos_end = par.size() - 1;
+
+ for (pos_type i = pos, j = 0; i <= pos_end; ++i) {
+ if (moveItem(par, pos, tmp, j, bparams)) {
++j;
+ }
}
-
- for (pos_type k = pos_end; k >= pos; --k) {
- par->erase(k);
- }
+ // Move over the end-of-par change information
+ tmp.setChange(tmp.size(), par.lookupChange(par.size()));
+ par.setChange(par.size(), Change(bparams.trackChanges ?
+ Change::INSERTED : Change::UNCHANGED));
}
}
-#if 0
-// Be carefull, this does not make any check at all.
-// This method has wrong name, it combined this par with the next par.
-// In that sense it is the reverse of break paragraph. (Lgb)
-void pasteParagraph(BufferParams const & bparams,
- Paragraph * par)
+void mergeParagraph(BufferParams const & bparams,
+ ParagraphList & pars, pit_type par_offset)
{
- // copy the next paragraph to this one
- Paragraph * the_next = par->next();
+ Paragraph & next = pars[par_offset + 1];
+ Paragraph & par = pars[par_offset];
+
+ pos_type pos_end = next.size() - 1;
+ pos_type pos_insert = par.size();
- // first the DTP-stuff
- par->params().lineBottom(the_next->params().lineBottom());
- par->params().spaceBottom(the_next->params().spaceBottom());
- par->params().pagebreakBottom(the_next->params().pagebreakBottom());
+ // the imaginary end-of-paragraph character (at par.size()) has to be
+ // marked as unmodified. Otherwise, its change is adopted by the first
+ // character of the next paragraph.
+ if (par.lookupChange(par.size()).type != Change::UNCHANGED) {
+ lyxerr[Debug::CHANGES] <<
+ "merging par with inserted/deleted end-of-par character" << endl;
+ par.setChange(par.size(), Change(Change::UNCHANGED));
+ }
- pos_type pos_end = the_next->size() - 1;
- pos_type pos_insert = par->size();
+ Change change = next.lookupChange(next.size());
- // ok, now copy the paragraph
- for (pos_type i = 0, j = 0; i <= pos_end; ++i) {
- the_next->cutIntoMinibuffer(bparams, i);
- if (par->insertFromMinibuffer(pos_insert + j))
+ // move the content of the second paragraph to the end of the first one
+ for (pos_type i = 0, j = pos_insert; i <= pos_end; ++i) {
+ if (moveItem(next, 0, par, j, bparams)) {
++j;
+ }
}
- // delete the next paragraph
- Paragraph * ppar = the_next->previous();
- Paragraph * npar = the_next->next();
- delete the_next;
- ppar->next(npar);
+ // move the change of the end-of-paragraph character
+ par.setChange(par.size(), change);
+
+ pars.erase(boost::next(pars.begin(), par_offset + 1));
}
-Paragraph * depthHook(Paragraph * par, Paragraph::depth_type depth)
+pit_type depthHook(pit_type pit, ParagraphList const & pars, depth_type depth)
{
- Paragraph * newpar = par;
+ pit_type newpit = pit;
- do {
- newpar = newpar->previous();
- } while (newpar && newpar->getDepth() > depth);
+ if (newpit != 0)
+ --newpit;
- if (!newpar) {
- if (par->previous() || par->getDepth())
- lyxerr << "Error (depthHook): "
- << "no hook." << endl;
- newpar = par;
- }
- return newpar;
+ while (newpit != 0 && pars[newpit].getDepth() > depth)
+ --newpit;
+
+ if (pars[newpit].getDepth() > depth)
+ return pit;
+
+ return newpit;
}
-Paragraph * outerHook(Paragraph * par)
+pit_type outerHook(pit_type par_offset, ParagraphList const & pars)
{
- if (!par->getDepth())
- return 0;
- return depthHook(par, Paragraph::depth_type(par->getDepth() - 1));
+ Paragraph const & par = pars[par_offset];
+
+ if (par.getDepth() == 0)
+ return pars.size();
+ return depthHook(par_offset, pars, depth_type(par.getDepth() - 1));
}
-bool isFirstInSequence(Paragraph * par)
+bool isFirstInSequence(pit_type par_offset, ParagraphList const & pars)
{
- Paragraph const * dhook = depthHook(par, par->getDepth());
- return (dhook == par
- || dhook->getLayout() != par->getLayout()
- || dhook->getDepth() != par->getDepth());
+ Paragraph const & par = pars[par_offset];
+
+ pit_type dhook_offset = depthHook(par_offset, pars, par.getDepth());
+
+ if (dhook_offset == par_offset)
+ return true;
+
+ Paragraph const & dhook = pars[dhook_offset];
+
+ return dhook.layout() != par.layout()
+ || dhook.getDepth() != par.getDepth();
}
-int getEndLabel(Paragraph * para, BufferParams const & bparams)
+int getEndLabel(pit_type p, ParagraphList const & pars)
{
- Paragraph * par = para;
- while (par) {
- Paragraph::depth_type par_depth = par->getDepth();
- layout_type layout = par->getLayout();
- int const endlabeltype =
- textclasslist.Style(bparams.textclass,
- layout).endlabeltype;
+ pit_type pit = p;
+ depth_type par_depth = pars[p].getDepth();
+ while (pit != pit_type(pars.size())) {
+ LyXLayout_ptr const & layout = pars[pit].layout();
+ int const endlabeltype = layout->endlabeltype;
+
if (endlabeltype != END_LABEL_NO_LABEL) {
- if (!para->next())
+ if (p + 1 == pit_type(pars.size()))
return endlabeltype;
- Paragraph::depth_type const next_depth =
- para->next()->getDepth();
+ depth_type const next_depth =
+ pars[p + 1].getDepth();
if (par_depth > next_depth ||
- (par_depth == next_depth
- && layout != para->next()->getLayout()))
+ (par_depth == next_depth && layout != pars[p + 1].layout()))
return endlabeltype;
break;
}
if (par_depth == 0)
break;
- par = outerHook(par);
+ pit = outerHook(pit, pars);
+ if (pit != pit_type(pars.size()))
+ par_depth = pars[pit].getDepth();
}
return END_LABEL_NO_LABEL;
}
-#endif
+
+
+LyXFont const outerFont(pit_type par_offset, ParagraphList const & pars)
+{
+ depth_type par_depth = pars[par_offset].getDepth();
+ LyXFont tmpfont(LyXFont::ALL_INHERIT);
+
+ // Resolve against environment font information
+ while (par_offset != pit_type(pars.size())
+ && par_depth
+ && !tmpfont.resolved()) {
+ par_offset = outerHook(par_offset, pars);
+ if (par_offset != pit_type(pars.size())) {
+ tmpfont.realize(pars[par_offset].layout()->font);
+ par_depth = pars[par_offset].getDepth();
+ }
+ }
+
+ return tmpfont;
+}
+
+
+/// return the number of InsetOptArg in a paragraph
+int numberOfOptArgs(Paragraph const & par)
+{
+ int num = 0;
+
+ InsetList::const_iterator it = par.insetlist.begin();
+ InsetList::const_iterator end = par.insetlist.end();
+ for (; it != end ; ++it) {
+ if (it->inset->lyxCode() == InsetBase::OPTARG_CODE)
+ ++num;
+ }
+ return num;
+}
+
+
+} // namespace lyx
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