lyx_mirror/src/paragraph_funcs.C

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/**
* \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 Bj<EFBFBD>nnes
*
* 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 "debug.h"
using lyx::pos_type;
//using lyx::layout_type;
using std::endl;
void breakParagraph(BufferParams const & bparams,
Paragraph * par,
pos_type pos,
int flag)
{
// create a new paragraph
Paragraph * tmp = new Paragraph(par);
// 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
// layout stays the same with latex-environments
if (flag) {
tmp->layout(par->layout());
tmp->setLabelWidthString(par->params().labelWidthString());
}
bool const 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
// 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))
++j;
}
for (i = pos_end; i >= pos; --i) {
par->erase(i);
}
}
if (pos)
return;
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());
}
}
void breakParagraphConservative(BufferParams const & bparams,
Paragraph * par,
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))
++j;
}
for (pos_type k = pos_end; k >= pos; --k) {
par->erase(k);
}
}
}
void mergeParagraph(BufferParams const & bparams, Paragraph * par)
{
Paragraph * the_next = par->next();
// 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());
pos_type pos_end = the_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) {
the_next->cutIntoMinibuffer(bparams, i);
if (par->insertFromMinibuffer(pos_insert + j))
++j;
}
// delete the next paragraph
Paragraph * ppar = the_next->previous();
Paragraph * npar = the_next->next();
delete the_next;
ppar->next(npar);
}
#if 0
Paragraph * depthHook(Paragraph * par, Paragraph::depth_type depth)
{
Paragraph * newpar = par;
do {
newpar = newpar->previous();
} while (newpar && newpar->getDepth() > depth);
if (!newpar) {
if (par->previous() || par->getDepth())
lyxerr << "Error (depthHook): "
<< "no hook." << endl;
newpar = par;
}
return newpar;
}
Paragraph * outerHook(Paragraph * par)
{
if (!par->getDepth())
return 0;
return depthHook(par, Paragraph::depth_type(par->getDepth() - 1));
}
bool isFirstInSequence(Paragraph * par)
{
Paragraph const * dhook = depthHook(par, par->getDepth());
return (dhook == par
|| dhook->getLayout() != par->getLayout()
|| dhook->getDepth() != par->getDepth());
}
int getEndLabel(Paragraph * para, BufferParams const & bparams)
{
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;
if (endlabeltype != END_LABEL_NO_LABEL) {
if (!para->next())
return endlabeltype;
Paragraph::depth_type const next_depth =
para->next()->getDepth();
if (par_depth > next_depth ||
(par_depth == next_depth
&& layout != para->next()->getLayout()))
return endlabeltype;
break;
}
if (par_depth == 0)
break;
par = outerHook(par);
}
return END_LABEL_NO_LABEL;
}
#endif