X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fparagraph_funcs.C;h=76c99d685f8c0fdbbe3ccac026f747d7c50dae6f;hb=1567e4ad84c4eafeba9d42d30626b46e713599db;hp=2cb63eaa3825d355904e093bd8d80879a1be45d6;hpb=aa97bf08661d61dbd85071ff4ea5a3f7694a35f9;p=lyx.git

diff --git a/src/paragraph_funcs.C b/src/paragraph_funcs.C
index 2cb63eaa38..76c99d685f 100644
--- a/src/paragraph_funcs.C
+++ b/src/paragraph_funcs.C
@@ -12,84 +12,50 @@
 
 #include "paragraph_funcs.h"
 
-#include "buffer.h"
 #include "bufferparams.h"
-
 #include "debug.h"
-#include "encoding.h"
-#include "gettext.h"
-#include "language.h"
-#include "lyxrow.h"
 #include "lyxtext.h"
-#include "outputparams.h"
-#include "paragraph_pimpl.h"
-#include "pariterator.h"
-#include "sgml.h"
-#include "texrow.h"
-#include "vspace.h"
-
-#include "support/filetools.h"
-#include "support/lstrings.h"
-#include "support/lyxlib.h"
-
-#include <sstream>
-#include <vector>
-
-using lyx::pos_type;
-using lyx::pit_type;
-
-using lyx::support::ascii_lowercase;
-using lyx::support::bformat;
-using lyx::support::compare_ascii_no_case;
-using lyx::support::compare_no_case;
-using lyx::support::contains;
-using lyx::support::split;
-using lyx::support::subst;
-
-using std::auto_ptr;
-using std::endl;
-using std::string;
-using std::vector;
-using std::istringstream;
-using std::ostream;
-using std::pair;
+#include "paragraph.h"
+#include "ParagraphParameters.h"
 
 
-namespace {
+namespace lyx {
 
-bool moveItem(Paragraph & from, Paragraph & to,
-	BufferParams const & params, pos_type i, pos_type j,
-	Change change = Change(Change::INSERTED));
+using std::string;
+using std::endl;
 
-bool moveItem(Paragraph & from, Paragraph & to,
-	BufferParams const & params, pos_type i, pos_type j,
-	Change change)
+
+static bool moveItem(Paragraph & fromPar, pos_type fromPos,
+	Paragraph & toPar, pos_type toPos, BufferParams const & params)
 {
-	Paragraph::value_type const tmpchar = from.getChar(i);
-	LyXFont tmpfont = from.getFontSettings(params, i);
-
-	if (tmpchar == Paragraph::META_INSET) {
-		InsetBase * tmpinset = 0;
-		if (from.getInset(i)) {
-			// the inset is not in a paragraph anymore
-			tmpinset = from.insetlist.release(i);
-			from.insetlist.erase(i);
+	// 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);
 		}
 
-		if (!to.insetAllowed(tmpinset->lyxCode())) {
-			delete tmpinset;
+		fromPar.eraseChar(fromPos, false);
+
+		if (!toPar.insetAllowed(tmpInset->lyxCode())) {
+			delete tmpInset;
 			return false;
 		}
-		if (tmpinset)
-			to.insertInset(j, tmpinset, tmpfont, change);
+
+		toPar.insertInset(toPos, tmpInset, tmpFont, tmpChange);
 	} else {
-		if (!to.checkInsertChar(tmpfont))
-			return false;
-		to.insertChar(j, tmpchar, tmpfont, change);
+		fromPar.eraseChar(fromPos, false);
+		toPar.insertChar(toPos, tmpChar, tmpFont, tmpChange);
 	}
-	return true;
-}
 
+	return true;
 }
 
 
@@ -98,29 +64,28 @@ void breakParagraph(BufferParams const & bparams,
 {
 	// create a new paragraph, and insert into the list
 	ParagraphList::iterator tmp =
-		pars.insert(pars.begin() + par_offset + 1, Paragraph());
+		pars.insert(boost::next(pars.begin(), par_offset + 1),
+			    Paragraph());
 
 	Paragraph & par = pars[par_offset];
 
-	// we will invalidate the row cache
-	par.rows().clear();
-
 	// 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());
 
-	if (bparams.tracking_changes)
-		tmp->trackChanges();
-
-	// this is an idea for a more userfriendly layout handling, I will
-	// see what the users say
-
 	// layout stays the same with latex-environments
 	if (flag) {
 		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 const isempty = (par.allowEmpty() && par.empty());
@@ -133,7 +98,7 @@ void breakParagraph(BufferParams const & bparams,
 		tmp->params().depth(par.params().depth());
 		tmp->params().noindent(par.params().noindent());
 
-		// copy everything behind the break-position
+		// move everything behind the break position
 		// to the new paragraph
 
 		/* Note: if !keepempty, empty() == true, then we reach
@@ -143,23 +108,23 @@ void breakParagraph(BufferParams const & bparams,
 		 */
 		pos_type pos_end = par.size() - 1;
 
-		for (pos_type i = pos, j = pos; i <= pos_end; ++i) {
-			Change::Type change = par.lookupChange(i);
-			if (moveItem(par, *tmp, bparams, i, j - pos)) {
-				tmp->setChange(j - pos, change);
+		for (pos_type i = pos, j = 0; i <= pos_end; ++i) {
+			if (moveItem(par, pos, *tmp, j, bparams)) {
 				++j;
 			}
 		}
-
-		for (pos_type i = pos_end; i >= pos; --i)
-			par.eraseIntern(i);
 	}
 
+	// 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 paragrpah.
+		// breaking paragraph.
 		if (tmp->empty()) {
-			LyXFont changed = tmp->getFirstFontSettings();
+			LyXFont changed = tmp->getFirstFontSettings(bparams);
 			LyXFont old = par.getFontSettings(bparams, par.size());
 			changed.setLanguage(old.language());
 			tmp->setFont(0, changed);
@@ -168,26 +133,17 @@ void breakParagraph(BufferParams const & bparams,
 		return;
 	}
 
-        if (!isempty) {
-                par.params().clear();
-                par.layout(bparams.getLyXTextClass().defaultLayout());
-        }
-        
+	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());
 	}
-
-	// subtle, but needed to get empty pars working right
-	if (bparams.tracking_changes) {
-		if (!par.size()) {
-			par.cleanChanges();
-		} else if (!tmp->size()) {
-			tmp->cleanChanges();
-		}
-	}
 }
 
 
@@ -195,33 +151,27 @@ void breakParagraphConservative(BufferParams const & bparams,
 	ParagraphList & pars, pit_type par_offset, pos_type pos)
 {
 	// create a new paragraph
-	Paragraph & tmp = *pars.insert(pars.begin() + par_offset + 1, Paragraph());
+	Paragraph & tmp = *pars.insert(boost::next(pars.begin(), par_offset + 1),
+				       Paragraph());
 	Paragraph & par = pars[par_offset];
 
-	if (bparams.tracking_changes)
-		tmp.trackChanges();
-
 	tmp.makeSameLayout(par);
 
-	// When can pos > size()?
-	// I guess pos == size() is possible.
-	if (par.size() > pos) {
-		// copy everything behind the break-position to the new
-		// paragraph
+	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 = pos; i <= pos_end; ++i) {
-			Change::Type change = par.lookupChange(i);
-			if (moveItem(par, tmp, bparams, i, j - pos, change))
+		for (pos_type i = pos, j = 0; i <= pos_end; ++i) {
+			if (moveItem(par, pos, tmp, j, bparams)) {
 				++j;
+			}
 		}
-		// If tracking changes, set all the text that is to be
-		// erased to Type::INSERTED.
-		for (pos_type k = pos_end; k >= pos; --k) {
-			if (bparams.tracking_changes)
-				par.setChange(k, Change::INSERTED);
-			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));
 	}
 }
 
@@ -235,19 +185,32 @@ void mergeParagraph(BufferParams const & bparams,
 	pos_type pos_end = next.size() - 1;
 	pos_type pos_insert = par.size();
 
-	// ok, now copy the paragraph
-	for (pos_type i = 0, j = 0; i <= pos_end; ++i) {
-		Change::Type change = next.lookupChange(i);
-		if (moveItem(next, par, bparams, i, pos_insert + j, change))
+	// 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));
+	}
+
+	Change change = next.lookupChange(next.size());
+
+	// 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;
+		}
 	}
 
-	pars.erase(pars.begin() + par_offset + 1);
+	// move the change of the end-of-paragraph character
+	par.setChange(par.size(), change);
+
+	pars.erase(boost::next(pars.begin(), par_offset + 1));
 }
 
 
-pit_type depthHook(pit_type pit,
-	ParagraphList const & pars, Paragraph::depth_type depth)
+pit_type depthHook(pit_type pit, ParagraphList const & pars, depth_type depth)
 {
 	pit_type newpit = pit;
 
@@ -270,7 +233,7 @@ pit_type outerHook(pit_type par_offset, ParagraphList const & pars)
 
 	if (par.getDepth() == 0)
 		return pars.size();
-	return depthHook(par_offset, pars, Paragraph::depth_type(par.getDepth() - 1));
+	return depthHook(par_offset, pars, depth_type(par.getDepth() - 1));
 }
 
 
@@ -280,10 +243,12 @@ bool isFirstInSequence(pit_type par_offset, ParagraphList const & pars)
 
 	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_offset == par_offset
-		|| dhook.layout() != par.layout()
+	return dhook.layout() != par.layout()
 		|| dhook.getDepth() != par.getDepth();
 }
 
@@ -291,7 +256,7 @@ bool isFirstInSequence(pit_type par_offset, ParagraphList const & pars)
 int getEndLabel(pit_type p, ParagraphList const & pars)
 {
 	pit_type pit = p;
-	Paragraph::depth_type par_depth = pars[p].getDepth();
+	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;
@@ -300,7 +265,7 @@ int getEndLabel(pit_type p, ParagraphList const & pars)
 			if (p + 1 == pit_type(pars.size()))
 				return endlabeltype;
 
-			Paragraph::depth_type const next_depth =
+			depth_type const next_depth =
 				pars[p + 1].getDepth();
 			if (par_depth > next_depth ||
 			    (par_depth == next_depth && layout != pars[p + 1].layout()))
@@ -319,7 +284,7 @@ int getEndLabel(pit_type p, ParagraphList const & pars)
 
 LyXFont const outerFont(pit_type par_offset, ParagraphList const & pars)
 {
-	Paragraph::depth_type par_depth = pars[par_offset].getDepth();
+	depth_type par_depth = pars[par_offset].getDepth();
 	LyXFont tmpfont(LyXFont::ALL_INHERIT);
 
 	// Resolve against environment font information
@@ -350,3 +315,6 @@ int numberOfOptArgs(Paragraph const & par)
 	}
 	return num;
 }
+
+
+} // namespace lyx