lyx_mirror/src/paragraph_funcs.cpp

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/**
* \file paragraph_funcs.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bj<EFBFBD>nnes
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "paragraph_funcs.h"
#include "BufferParams.h"
#include "Changes.h"
#include "support/debug.h"
#include "InsetList.h"
#include "Layout.h"
#include "Paragraph.h"
#include "ParagraphParameters.h"
#include "Text.h"
#include "TextClass.h"
#include <boost/next_prior.hpp>
using namespace std;
namespace lyx {
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
char_type const tmpChar = fromPar.getChar(fromPos);
Font const tmpFont = fromPar.getFontSettings(params, fromPos);
Change const tmpChange = fromPar.lookupChange(fromPos);
if (fromPar.isInset(fromPos)) {
Inset * tmpInset = 0;
if (fromPar.getInset(fromPos)) {
// the inset is not in the paragraph any more
tmpInset = fromPar.releaseInset(fromPos);
}
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,
ParagraphList & pars, pit_type par_offset, pos_type pos,
bool keep_layout)
{
// create a new paragraph, and insert into the list
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
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.getTextClass().defaultLayout());
// remember to set the inset_owner
tmp->setInsetOwner(par.inInset());
// layout stays the same with latex-environments
if (keep_layout) {
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());
if (!isempty && (par.size() > pos || par.empty())) {
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
/* 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;
}
}
}
// 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()) {
Font changed = tmp->getFirstFontSettings(bparams);
Font old = par.getFontSettings(bparams, par.size());
changed.setLanguage(old.language());
tmp->setFont(0, changed);
}
return;
}
if (!isempty) {
bool const soa = par.params().startOfAppendix();
par.params().clear();
// do not lose start of appendix marker (bug 4212)
par.params().startOfAppendix(soa);
par.layout(bparams.getTextClass().defaultLayout());
}
// layout stays the same with latex-environments
if (keep_layout) {
par.layout(tmp->layout());
par.setLabelWidthString(tmp->params().labelWidthString());
par.params().depth(tmp->params().depth());
}
}
void breakParagraphConservative(BufferParams const & bparams,
ParagraphList & pars, pit_type par_offset, pos_type pos)
{
// create a new paragraph
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;
}
}
// 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));
}
}
void mergeParagraph(BufferParams const & bparams,
ParagraphList & pars, pit_type par_offset)
{
Paragraph & next = pars[par_offset + 1];
Paragraph & par = pars[par_offset];
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
pos_type pos_end = next.size() - 1;
pos_type pos_insert = par.size();
// 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");
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;
}
}
// 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, depth_type depth)
{
pit_type newpit = pit;
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
if (newpit != 0)
--newpit;
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
while (newpit != 0 && pars[newpit].getDepth() > depth)
--newpit;
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
if (pars[newpit].getDepth() > depth)
return pit;
return newpit;
}
pit_type outerHook(pit_type par_offset, ParagraphList const & pars)
{
Paragraph const & par = pars[par_offset];
if (par.getDepth() == 0)
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
return pars.size();
return depthHook(par_offset, pars, depth_type(par.getDepth() - 1));
}
bool isFirstInSequence(pit_type par_offset, ParagraphList const & pars)
{
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(pit_type p, ParagraphList const & pars)
{
pit_type pit = p;
depth_type par_depth = pars[p].getDepth();
while (pit != pit_type(pars.size())) {
LayoutPtr const & layout = pars[pit].layout();
int const endlabeltype = layout->endlabeltype;
if (endlabeltype != END_LABEL_NO_LABEL) {
if (p + 1 == pit_type(pars.size()))
return endlabeltype;
depth_type const next_depth =
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
pars[p + 1].getDepth();
if (par_depth > next_depth ||
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
(par_depth == next_depth && layout != pars[p + 1].layout()))
return endlabeltype;
break;
}
if (par_depth == 0)
break;
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
pit = outerHook(pit, pars);
if (pit != pit_type(pars.size()))
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
par_depth = pars[pit].getDepth();
}
return END_LABEL_NO_LABEL;
}
Font const outerFont(pit_type par_offset, ParagraphList const & pars)
{
depth_type par_depth = pars[par_offset].getDepth();
FontInfo tmpfont = inherit_font;
// 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 Font(tmpfont);
}
void acceptChanges(ParagraphList & pars, BufferParams const & bparams)
{
pit_type pars_size = static_cast<pit_type>(pars.size());
// first, accept 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(bparams, 0, pars[pit].size());
}
// next, accept 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
pars[pit].setChange(pos, Change(Change::UNCHANGED));
} else {
mergeParagraph(bparams, pars, pit);
--pit;
--pars_size;
}
}
}
}
} // namespace lyx