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lyx_mirror/src/CutAndPaste.cpp
Georg Baum be468136df Silence unwanted error popup on copying 
The new HTML clipboard export could cause error message boxes on copying
data to the clipboard (bug #8866). These are now suppressed, like all other
errors which might occur for preparing the clipboard data.
2013-11-12 20:52:35 +01:00

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/**
* \file CutAndPaste.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Jürgen Vigna
* \author Lars Gullik Bjønnes
* \author Alfredo Braunstein
* \author Michael Gerz
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "CutAndPaste.h"
#include "BranchList.h"
#include "Buffer.h"
#include "buffer_funcs.h"
#include "BufferList.h"
#include "BufferParams.h"
#include "BufferView.h"
#include "Changes.h"
#include "Cursor.h"
#include "Encoding.h"
#include "ErrorList.h"
#include "FuncCode.h"
#include "FuncRequest.h"
#include "InsetIterator.h"
#include "InsetList.h"
#include "Language.h"
#include "LyX.h"
#include "LyXRC.h"
#include "Text.h"
#include "Paragraph.h"
#include "ParagraphParameters.h"
#include "ParIterator.h"
#include "TextClass.h"
#include "insets/InsetBibitem.h"
#include "insets/InsetBranch.h"
#include "insets/InsetCommand.h"
#include "insets/InsetFlex.h"
#include "insets/InsetGraphics.h"
#include "insets/InsetGraphicsParams.h"
#include "insets/InsetInclude.h"
#include "insets/InsetLabel.h"
#include "insets/InsetTabular.h"
#include "mathed/MathData.h"
#include "mathed/InsetMath.h"
#include "mathed/InsetMathHull.h"
#include "mathed/InsetMathRef.h"
#include "mathed/MathSupport.h"
#include "support/debug.h"
#include "support/docstream.h"
#include "support/gettext.h"
#include "support/lassert.h"
#include "support/limited_stack.h"
#include "support/lstrings.h"
#include "frontends/alert.h"
#include "frontends/Clipboard.h"
#include "frontends/Selection.h"
#include <boost/tuple/tuple.hpp>
#include <boost/next_prior.hpp>
#include <string>
using namespace std;
using namespace lyx::support;
using lyx::frontend::Clipboard;
namespace lyx {
namespace {
typedef pair<pit_type, int> PitPosPair;
typedef limited_stack<pair<ParagraphList, DocumentClassConstPtr> > CutStack;
CutStack theCuts(10);
// persistent selection, cleared until the next selection
CutStack selectionBuffer(1);
// store whether the tabular stack is newer than the normal copy stack
// FIXME: this is a workaround for bug 1919. Should be removed for 1.5,
// when we (hopefully) have a one-for-all paste mechanism.
bool dirty_tabular_stack_ = false;
bool checkPastePossible(int index)
{
return size_t(index) < theCuts.size() && !theCuts[index].first.empty();
}
struct PasteReturnValue {
PasteReturnValue(pit_type r_par, pos_type r_pos, bool r_nu) :
par(r_par), pos(r_pos), needupdate(r_nu)
{}
pit_type par;
pos_type pos;
bool needupdate;
};
PasteReturnValue
pasteSelectionHelper(DocIterator const & cur, ParagraphList const & parlist,
DocumentClassConstPtr oldDocClass, Buffer * tmpbuffer,
ErrorList & errorlist)
{
Buffer const & buffer = *cur.buffer();
pit_type pit = cur.pit();
pos_type pos = cur.pos();
bool need_update = false;
InsetText * target_inset = cur.inset().asInsetText();
if (!target_inset) {
InsetTabular * it = cur.inset().asInsetTabular();
target_inset = it? it->cell(cur.idx())->asInsetText() : 0;
}
LASSERT(target_inset, return PasteReturnValue(pit, pos, need_update));
ParagraphList & pars = target_inset->paragraphs();
if (parlist.empty())
return PasteReturnValue(pit, pos, need_update);
BOOST_ASSERT (pos <= pars[pit].size());
// Make a copy of the CaP paragraphs.
ParagraphList insertion = parlist;
DocumentClassConstPtr newDocClass = buffer.params().documentClassPtr();
// Now remove all out of the pars which is NOT allowed in the
// new environment and set also another font if that is required.
// Convert newline to paragraph break in ParbreakIsNewline
if (target_inset->getLayout().parbreakIsNewline()
|| pars[pit].layout().parbreak_is_newline) {
for (size_t i = 0; i != insertion.size(); ++i) {
for (pos_type j = 0; j != insertion[i].size(); ++j) {
if (insertion[i].isNewline(j)) {
// do not track deletion of newline
insertion[i].eraseChar(j, false);
insertion[i].setInsetOwner(target_inset);
breakParagraphConservative(
buffer.params(),
insertion, i, j);
break;
}
}
}
}
// set the paragraphs to plain layout if necessary
if (cur.inset().usePlainLayout()) {
bool forcePlainLayout = cur.inset().forcePlainLayout();
Layout const & plainLayout = newDocClass->plainLayout();
Layout const & defaultLayout = newDocClass->defaultLayout();
ParagraphList::iterator const end = insertion.end();
ParagraphList::iterator par = insertion.begin();
for (; par != end; ++par) {
Layout const & parLayout = par->layout();
if (forcePlainLayout || parLayout == defaultLayout)
par->setLayout(plainLayout);
}
} else { // check if we need to reset from plain layout
Layout const & defaultLayout = newDocClass->defaultLayout();
Layout const & plainLayout = newDocClass->plainLayout();
ParagraphList::iterator const end = insertion.end();
ParagraphList::iterator par = insertion.begin();
for (; par != end; ++par) {
Layout const & parLayout = par->layout();
if (parLayout == plainLayout)
par->setLayout(defaultLayout);
}
}
InsetText in(cur.buffer());
// Make sure there is no class difference.
in.paragraphs().clear();
// This works without copying any paragraph data because we have
// a specialized swap method for ParagraphList. This is important
// since we store pointers to insets at some places and we don't
// want to invalidate them.
insertion.swap(in.paragraphs());
cap::switchBetweenClasses(oldDocClass, newDocClass, in, errorlist);
insertion.swap(in.paragraphs());
ParagraphList::iterator tmpbuf = insertion.begin();
int depth_delta = pars[pit].params().depth() - tmpbuf->params().depth();
depth_type max_depth = pars[pit].getMaxDepthAfter();
for (; tmpbuf != insertion.end(); ++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 (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 pit.
if (tmpbuf != insertion.begin())
max_depth = tmpbuf->getMaxDepthAfter();
// Set the inset owner of this paragraph.
tmpbuf->setInsetOwner(target_inset);
for (pos_type i = 0; i < tmpbuf->size(); ++i) {
// do not track deletion of invalid insets
if (Inset * inset = tmpbuf->getInset(i))
if (!target_inset->insetAllowed(inset->lyxCode()))
tmpbuf->eraseChar(i--, false);
}
tmpbuf->setChange(Change(buffer.params().trackChanges ?
Change::INSERTED : Change::UNCHANGED));
}
bool const empty = pars[pit].empty();
if (!empty) {
// Make the buf exactly the same layout as the cursor
// paragraph.
insertion.begin()->makeSameLayout(pars[pit]);
}
// Prepare the paragraphs and insets for insertion.
insertion.swap(in.paragraphs());
InsetIterator const i_end = inset_iterator_end(in);
for (InsetIterator it = inset_iterator_begin(in); it != i_end; ++it) {
// Even though this will also be done later, it has to be done here
// since some inset might going to try to access
// the buffer() member.
it->setBuffer(const_cast<Buffer &>(buffer));
switch (it->lyxCode()) {
case MATH_HULL_CODE: {
// check for equation labels and resolve duplicates
InsetMathHull * ins = it->asInsetMath()->asHullInset();
std::vector<InsetLabel *> labels = ins->getLabels();
for (size_t i = 0; i != labels.size(); ++i) {
if (!labels[i])
continue;
InsetLabel * lab = labels[i];
docstring const oldname = lab->getParam("name");
lab->updateLabel(oldname);
// We need to update the buffer reference cache.
need_update = true;
docstring const newname = lab->getParam("name");
if (oldname == newname)
continue;
// adapt the references
for (InsetIterator itt = inset_iterator_begin(in);
itt != i_end; ++itt) {
if (itt->lyxCode() == REF_CODE) {
InsetCommand * ref = itt->asInsetCommand();
if (ref->getParam("reference") == oldname)
ref->setParam("reference", newname);
} else if (itt->lyxCode() == MATH_REF_CODE) {
InsetMathRef * mi = itt->asInsetMath()->asRefInset();
// this is necessary to prevent an uninitialized
// buffer when the RefInset is in a MathBox.
// FIXME audit setBuffer calls
mi->setBuffer(const_cast<Buffer &>(buffer));
if (mi->getTarget() == oldname)
mi->changeTarget(newname);
}
}
}
break;
}
case LABEL_CODE: {
// check for duplicates
InsetLabel & lab = static_cast<InsetLabel &>(*it);
docstring const oldname = lab.getParam("name");
lab.updateLabel(oldname);
// We need to update the buffer reference cache.
need_update = true;
docstring const newname = lab.getParam("name");
if (oldname == newname)
break;
// adapt the references
for (InsetIterator itt = inset_iterator_begin(in); itt != i_end; ++itt) {
if (itt->lyxCode() == REF_CODE) {
InsetCommand & ref = static_cast<InsetCommand &>(*itt);
if (ref.getParam("reference") == oldname)
ref.setParam("reference", newname);
} else if (itt->lyxCode() == MATH_REF_CODE) {
InsetMathRef * mi = itt->asInsetMath()->asRefInset();
// this is necessary to prevent an uninitialized
// buffer when the RefInset is in a MathBox.
// FIXME audit setBuffer calls
mi->setBuffer(const_cast<Buffer &>(buffer));
if (mi->getTarget() == oldname)
mi->changeTarget(newname);
}
}
break;
}
case INCLUDE_CODE: {
InsetInclude & inc = static_cast<InsetInclude &>(*it);
inc.updateCommand();
// We need to update the list of included files.
need_update = true;
break;
}
case BIBITEM_CODE: {
// check for duplicates
InsetBibitem & bib = static_cast<InsetBibitem &>(*it);
docstring const oldkey = bib.getParam("key");
bib.updateCommand(oldkey, false);
// We need to update the buffer reference cache.
need_update = true;
docstring const newkey = bib.getParam("key");
if (oldkey == newkey)
break;
// adapt the references
for (InsetIterator itt = inset_iterator_begin(in);
itt != i_end; ++itt) {
if (itt->lyxCode() == CITE_CODE) {
InsetCommand * ref = itt->asInsetCommand();
if (ref->getParam("key") == oldkey)
ref->setParam("key", newkey);
}
}
break;
}
case BRANCH_CODE: {
// check if branch is known to target buffer
// or its master
InsetBranch & br = static_cast<InsetBranch &>(*it);
docstring const name = br.branch();
if (name.empty())
break;
bool const is_child = (&buffer != buffer.masterBuffer());
BranchList branchlist = buffer.params().branchlist();
if ((!is_child && branchlist.find(name))
|| (is_child && (branchlist.find(name)
|| buffer.masterBuffer()->params().branchlist().find(name))))
break;
if (tmpbuffer) {
// This is for a temporary buffer, so simply create the branch.
// Must not use lyx::dispatch(), since tmpbuffer has no view.
DispatchResult dr;
tmpbuffer->dispatch(FuncRequest(LFUN_BRANCH_ADD, name), dr);
} else {
docstring text = bformat(
_("The pasted branch \"%1$s\" is undefined.\n"
"Do you want to add it to the document's branch list?"),
name);
if (frontend::Alert::prompt(_("Unknown branch"),
text, 0, 1, _("&Add"), _("&Don't Add")) != 0)
break;
lyx::dispatch(FuncRequest(LFUN_BRANCH_ADD, name));
}
// We need to update the list of branches.
need_update = true;
break;
}
default:
break; // nothing
}
}
insertion.swap(in.paragraphs());
// Split the paragraph for inserting the buf if necessary.
if (!empty)
breakParagraphConservative(buffer.params(), pars, pit, pos);
// Paste it!
if (empty) {
pars.insert(boost::next(pars.begin(), pit),
insertion.begin(),
insertion.end());
// merge the empty par with the last par of the insertion
mergeParagraph(buffer.params(), pars,
pit + insertion.size() - 1);
} else {
pars.insert(boost::next(pars.begin(), pit + 1),
insertion.begin(),
insertion.end());
// merge the first par of the insertion with the current par
mergeParagraph(buffer.params(), pars, pit);
}
// Store the new cursor position.
pit_type last_paste = pit + insertion.size() - 1;
pit_type startpit = pit;
pit = last_paste;
pos = pars[last_paste].size();
// FIXME Should we do it here, or should we let updateBuffer() do it?
// Set paragraph buffers. It's important to do this right away
// before something calls Inset::buffer() and causes a crash.
for (pit_type p = startpit; p <= pit; ++p)
pars[p].setBuffer(const_cast<Buffer &>(buffer));
// Join (conditionally) last pasted paragraph with next one, i.e.,
// the tail of the spliced document paragraph
if (!empty && last_paste + 1 != pit_type(pars.size())) {
if (pars[last_paste + 1].hasSameLayout(pars[last_paste])) {
mergeParagraph(buffer.params(), pars, last_paste);
} else if (pars[last_paste + 1].empty()) {
pars[last_paste + 1].makeSameLayout(pars[last_paste]);
mergeParagraph(buffer.params(), pars, last_paste);
} else if (pars[last_paste].empty()) {
pars[last_paste].makeSameLayout(pars[last_paste + 1]);
mergeParagraph(buffer.params(), pars, last_paste);
} else {
pars[last_paste + 1].stripLeadingSpaces(buffer.params().trackChanges);
++last_paste;
}
}
return PasteReturnValue(pit, pos, need_update);
}
PitPosPair eraseSelectionHelper(BufferParams const & params,
ParagraphList & pars,
pit_type startpit, pit_type endpit,
int startpos, int endpos)
{
// Start of selection is really invalid.
if (startpit == pit_type(pars.size()) ||
(startpos > pars[startpit].size()))
return PitPosPair(endpit, endpos);
// Start and end is inside same paragraph
if (endpit == pit_type(pars.size()) || startpit == endpit) {
endpos -= pars[startpit].eraseChars(startpos, endpos, params.trackChanges);
return PitPosPair(endpit, endpos);
}
for (pit_type pit = startpit; pit != endpit + 1;) {
pos_type const left = (pit == startpit ? startpos : 0);
pos_type right = (pit == endpit ? endpos : pars[pit].size() + 1);
bool const merge = pars[pit].isMergedOnEndOfParDeletion(params.trackChanges);
// Logically erase only, including the end-of-paragraph character
pars[pit].eraseChars(left, right, params.trackChanges);
// Separate handling of paragraph break:
if (merge && pit != endpit &&
(pit + 1 != endpit
|| pars[pit].hasSameLayout(pars[endpit])
|| pars[endpit].size() == endpos)) {
if (pit + 1 == endpit)
endpos += pars[pit].size();
mergeParagraph(params, pars, pit);
--endpit;
} else
++pit;
}
// Ensure legal cursor pos:
endpit = startpit;
endpos = startpos;
return PitPosPair(endpit, endpos);
}
void putClipboard(ParagraphList const & paragraphs,
DocumentClassConstPtr docclass, docstring const & plaintext)
{
// This used to need to be static to avoid a memory leak. It no longer needs
// to be so, but the alternative is to construct a new one of these (with a
// new temporary directory, etc) every time, and then to destroy it. So maybe
// it's worth just keeping this one around.
static Buffer * staticbuffer = theBufferList().newInternalBuffer(
FileName::tempName("clipboard.internal").absFileName());
// These two things only really need doing the first time.
staticbuffer->setUnnamed(true);
staticbuffer->inset().setBuffer(*staticbuffer);
// Use a clone for the complicated stuff so that we do not need to clean
// up in order to avoid a crash.
Buffer * buffer = staticbuffer->cloneBufferOnly();
LASSERT(buffer, return);
// This needs doing every time.
buffer->params().setDocumentClass(docclass);
// we will use pasteSelectionHelper to copy the paragraphs into the
// temporary Buffer, since it does a lot of things to fix them up.
DocIterator dit = doc_iterator_begin(buffer, &buffer->inset());
ErrorList el;
pasteSelectionHelper(dit, paragraphs, docclass, buffer, el);
// We don't want to produce images that are not used. Therefore,
// output formulas as MathML. Even if this is not understood by all
// applications, the number that can parse it should go up in the future.
buffer->params().html_math_output = BufferParams::MathML;
// Make sure MarkAsExporting is deleted before buffer is
{
// The Buffer is being used to export. This is necessary so that the
// updateMacros call will record the needed information.
MarkAsExporting mex(buffer);
buffer->updateBuffer(Buffer::UpdateMaster, OutputUpdate);
buffer->updateMacros();
buffer->updateMacroInstances(OutputUpdate);
// LyX's own format
string lyx;
ostringstream oslyx;
if (buffer->write(oslyx))
lyx = oslyx.str();
// XHTML format
odocstringstream oshtml;
OutputParams runparams(encodings.fromLyXName("utf8"));
// We do not need to produce images, etc.
runparams.dryrun = true;
// We are not interested in errors (bug 8866)
runparams.silent = true;
buffer->writeLyXHTMLSource(oshtml, runparams, Buffer::FullSource);
theClipboard().put(lyx, oshtml.str(), plaintext);
}
// Save that memory
delete buffer;
}
/// return true if the whole ParagraphList is deleted
static bool isFullyDeleted(ParagraphList const & pars)
{
pit_type const pars_size = static_cast<pit_type>(pars.size());
// check all paragraphs
for (pit_type pit = 0; pit < pars_size; ++pit) {
if (!pars[pit].empty()) // prevent assertion failure
if (!pars[pit].isDeleted(0, pars[pit].size()))
return false;
}
return true;
}
void copySelectionHelper(Buffer const & buf, Text const & text,
pit_type startpit, pit_type endpit,
int start, int end, DocumentClassConstPtr dc, CutStack & cutstack)
{
ParagraphList const & pars = text.paragraphs();
// In most of these cases, we can try to recover.
LASSERT(0 <= start, start = 0);
LASSERT(start <= pars[startpit].size(), start = pars[startpit].size());
LASSERT(0 <= end, end = 0);
LASSERT(end <= pars[endpit].size(), end = pars[endpit].size());
LASSERT(startpit != endpit || start <= end, return);
// Clone the paragraphs within the selection.
ParagraphList copy_pars(boost::next(pars.begin(), startpit),
boost::next(pars.begin(), endpit + 1));
// Remove the end of the last paragraph; afterwards, remove the
// beginning of the first paragraph. Keep this order - there may only
// be one paragraph! Do not track deletions here; this is an internal
// action not visible to the user
Paragraph & back = copy_pars.back();
back.eraseChars(end, back.size(), false);
Paragraph & front = copy_pars.front();
front.eraseChars(0, start, false);
ParagraphList::iterator it = copy_pars.begin();
ParagraphList::iterator it_end = copy_pars.end();
for (; it != it_end; ++it) {
// Since we have a copy of the paragraphs, the insets
// do not have a proper buffer reference. It makes
// sense to add them temporarily, because the
// operations below depend on that (acceptChanges included).
it->setBuffer(const_cast<Buffer &>(buf));
// PassThru paragraphs have the Language
// latex_language. This is invalid for others, so we
// need to change it to the buffer language.
if (it->isPassThru())
it->changeLanguage(buf.params(),
latex_language, buf.language());
}
// do not copy text (also nested in insets) which is marked as
// deleted, unless the whole selection was deleted
if (!isFullyDeleted(copy_pars))
acceptChanges(copy_pars, buf.params());
else
rejectChanges(copy_pars, buf.params());
// do some final cleanup now, to make sure that the paragraphs
// are not linked to something else.
it = copy_pars.begin();
for (; it != it_end; ++it) {
it->setBuffer(*static_cast<Buffer *>(0));
it->setInsetOwner(0);
}
cutstack.push(make_pair(copy_pars, dc));
}
} // namespace anon
namespace cap {
void region(CursorSlice const & i1, CursorSlice const & i2,
Inset::row_type & r1, Inset::row_type & r2,
Inset::col_type & c1, Inset::col_type & c2)
{
Inset & p = i1.inset();
c1 = p.col(i1.idx());
c2 = p.col(i2.idx());
if (c1 > c2)
swap(c1, c2);
r1 = p.row(i1.idx());
r2 = p.row(i2.idx());
if (r1 > r2)
swap(r1, r2);
}
docstring grabAndEraseSelection(Cursor & cur)
{
if (!cur.selection())
return docstring();
docstring res = grabSelection(cur);
eraseSelection(cur);
return res;
}
bool reduceSelectionToOneCell(Cursor & cur)
{
if (!cur.selection() || !cur.inMathed())
return false;
CursorSlice i1 = cur.selBegin();
CursorSlice i2 = cur.selEnd();
if (!i1.inset().asInsetMath())
return false;
// the easy case: do nothing if only one cell is selected
if (i1.idx() == i2.idx())
return true;
cur.top().pos() = 0;
cur.resetAnchor();
cur.top().pos() = cur.top().lastpos();
return true;
}
bool multipleCellsSelected(Cursor const & cur)
{
if (!cur.selection() || !cur.inMathed())
return false;
CursorSlice i1 = cur.selBegin();
CursorSlice i2 = cur.selEnd();
if (!i1.inset().asInsetMath())
return false;
if (i1.idx() == i2.idx())
return false;
return true;
}
void switchBetweenClasses(DocumentClassConstPtr oldone,
DocumentClassConstPtr newone, InsetText & in, ErrorList & errorlist)
{
errorlist.clear();
LBUFERR(!in.paragraphs().empty());
if (oldone == newone)
return;
DocumentClass const & oldtc = *oldone;
DocumentClass const & newtc = *newone;
// layouts
ParIterator it = par_iterator_begin(in);
ParIterator end = par_iterator_end(in);
// for remembering which layouts we've had to add
set<docstring> newlayouts;
for (; it != end; ++it) {
docstring const name = it->layout().name();
// the pasted text will keep their own layout name. If this layout does
// not exist in the new document, it will behave like a standard layout.
bool const added_one = newtc.addLayoutIfNeeded(name);
if (added_one)
newlayouts.insert(name);
if (added_one || newlayouts.find(name) != newlayouts.end()) {
// Warn the user.
docstring const s = bformat(_("Layout `%1$s' was not found."), name);
errorlist.push_back(
ErrorItem(_("Layout Not Found"), s, it->id(), 0, it->size()));
}
if (in.usePlainLayout())
it->setLayout(newtc.plainLayout());
else
it->setLayout(newtc[name]);
}
// character styles
InsetIterator const i_end = inset_iterator_end(in);
for (InsetIterator it = inset_iterator_begin(in); it != i_end; ++it) {
if (it->lyxCode() != FLEX_CODE)
// FIXME: Should we verify all InsetCollapsable?
continue;
docstring const layoutName = it->layoutName();
docstring const & n = newone->insetLayout(layoutName).name();
bool const is_undefined = n.empty() ||
n == DocumentClass::plainInsetLayout().name();
if (!is_undefined)
continue;
// The flex inset is undefined in newtc
docstring const oldname = from_utf8(oldtc.name());
docstring const newname = from_utf8(newtc.name());
docstring s;
if (oldname == newname)
s = bformat(_("Flex inset %1$s is undefined after "
"reloading `%2$s' layout."), layoutName, oldname);
else
s = bformat(_("Flex inset %1$s is undefined because of "
"conversion from `%2$s' layout to `%3$s'."),
layoutName, oldname, newname);
// To warn the user that something had to be done.
errorlist.push_back(ErrorItem(
_("Undefined flex inset"),
s, it.paragraph().id(), it.pos(), it.pos() + 1));
}
}
vector<docstring> availableSelections(Buffer const * buf)
{
vector<docstring> selList;
if (!buf)
return selList;
CutStack::const_iterator cit = theCuts.begin();
CutStack::const_iterator end = theCuts.end();
for (; cit != end; ++cit) {
// we do not use cit-> here because gcc 2.9x does not
// like it (JMarc)
ParagraphList const & pars = (*cit).first;
docstring asciiSel;
ParagraphList::const_iterator pit = pars.begin();
ParagraphList::const_iterator pend = pars.end();
for (; pit != pend; ++pit) {
Paragraph par(*pit, 0, 26);
// adapt paragraph to current buffer.
par.setBuffer(const_cast<Buffer &>(*buf));
asciiSel += par.asString(AS_STR_INSETS);
if (asciiSel.size() > 25) {
asciiSel.replace(22, docstring::npos,
from_ascii("..."));
break;
}
}
selList.push_back(asciiSel);
}
return selList;
}
size_type numberOfSelections()
{
return theCuts.size();
}
void cutSelection(Cursor & cur, bool doclear, bool realcut)
{
// This doesn't make sense, if there is no selection
if (!cur.selection())
return;
// OK, we have a selection. This is always between cur.selBegin()
// and cur.selEnd()
if (cur.inTexted()) {
Text * text = cur.text();
LBUFERR(text);
saveSelection(cur);
// make sure that the depth behind the selection are restored, too
cur.recordUndoSelection();
pit_type begpit = cur.selBegin().pit();
pit_type endpit = cur.selEnd().pit();
int endpos = cur.selEnd().pos();
BufferParams const & bp = cur.buffer()->params();
if (realcut) {
copySelectionHelper(*cur.buffer(),
*text,
begpit, endpit,
cur.selBegin().pos(), endpos,
bp.documentClassPtr(), theCuts);
// Stuff what we got on the clipboard.
// Even if there is no selection.
putClipboard(theCuts[0].first, theCuts[0].second,
cur.selectionAsString(true));
}
if (begpit != endpit)
cur.screenUpdateFlags(Update::Force | Update::FitCursor);
boost::tie(endpit, endpos) =
eraseSelectionHelper(bp,
text->paragraphs(),
begpit, endpit,
cur.selBegin().pos(), endpos);
// cutSelection can invalidate the cursor so we need to set
// it anew. (Lgb)
// we prefer the end for when tracking changes
cur.pos() = endpos;
cur.pit() = endpit;
// sometimes necessary
if (doclear
&& text->paragraphs()[begpit].stripLeadingSpaces(bp.trackChanges))
cur.fixIfBroken();
// need a valid cursor. (Lgb)
cur.clearSelection();
// After a cut operation, we must make sure that the Buffer is updated
// because some further operation might need updated label information for
// example. So we cannot just use "cur.forceBufferUpdate()" here.
// This fixes #7071.
cur.buffer()->updateBuffer();
// tell tabular that a recent copy happened
dirtyTabularStack(false);
}
if (cur.inMathed()) {
if (cur.selBegin().idx() != cur.selEnd().idx()) {
// The current selection spans more than one cell.
// Record all cells
cur.recordUndoInset();
} else {
// Record only the current cell to avoid a jumping
// cursor after undo
cur.recordUndo();
}
if (realcut)
copySelection(cur);
eraseSelection(cur);
}
}
void copySelection(Cursor const & cur)
{
copySelection(cur, cur.selectionAsString(true));
}
void copyInset(Cursor const & cur, Inset * inset, docstring const & plaintext)
{
ParagraphList pars;
Paragraph par;
BufferParams const & bp = cur.buffer()->params();
par.setLayout(bp.documentClass().plainLayout());
Font font(inherit_font, bp.language);
par.insertInset(0, inset, font, Change(Change::UNCHANGED));
pars.push_back(par);
theCuts.push(make_pair(pars, bp.documentClassPtr()));
// stuff the selection onto the X clipboard, from an explicit copy request
putClipboard(theCuts[0].first, theCuts[0].second, plaintext);
}
namespace {
void copySelectionToStack(Cursor const & cur, CutStack & cutstack)
{
// this doesn't make sense, if there is no selection
if (!cur.selection())
return;
// copySelection can not yet handle the case of cross idx selection
if (cur.selBegin().idx() != cur.selEnd().idx())
return;
if (cur.inTexted()) {
Text * text = cur.text();
LBUFERR(text);
// ok we have a selection. This is always between cur.selBegin()
// and sel_end cursor
// copy behind a space if there is one
ParagraphList & pars = text->paragraphs();
pos_type pos = cur.selBegin().pos();
pit_type par = cur.selBegin().pit();
while (pos < pars[par].size() &&
pars[par].isLineSeparator(pos) &&
(par != cur.selEnd().pit() || pos < cur.selEnd().pos()))
++pos;
copySelectionHelper(*cur.buffer(), *text, par, cur.selEnd().pit(),
pos, cur.selEnd().pos(),
cur.buffer()->params().documentClassPtr(), cutstack);
// Reset the dirty_tabular_stack_ flag only when something
// is copied to the clipboard (not to the selectionBuffer).
if (&cutstack == &theCuts)
dirtyTabularStack(false);
}
if (cur.inMathed()) {
//lyxerr << "copySelection in mathed" << endl;
ParagraphList pars;
Paragraph par;
BufferParams const & bp = cur.buffer()->params();
// FIXME This should be the plain layout...right?
par.setLayout(bp.documentClass().plainLayout());
par.insert(0, grabSelection(cur), Font(), Change(Change::UNCHANGED));
pars.push_back(par);
cutstack.push(make_pair(pars, bp.documentClassPtr()));
}
}
}
void copySelectionToStack()
{
if (!selectionBuffer.empty())
theCuts.push(selectionBuffer[0]);
}
void copySelection(Cursor const & cur, docstring const & plaintext)
{
// In tablemode, because copy and paste actually use special table stack
// we do not attempt to get selected paragraphs under cursor. Instead, a
// paragraph with the plain text version is generated so that table cells
// can be pasted as pure text somewhere else.
if (cur.selBegin().idx() != cur.selEnd().idx()) {
ParagraphList pars;
Paragraph par;
BufferParams const & bp = cur.buffer()->params();
par.setLayout(bp.documentClass().plainLayout());
par.insert(0, plaintext, Font(), Change(Change::UNCHANGED));
pars.push_back(par);
theCuts.push(make_pair(pars, bp.documentClassPtr()));
} else {
copySelectionToStack(cur, theCuts);
}
// stuff the selection onto the X clipboard, from an explicit copy request
putClipboard(theCuts[0].first, theCuts[0].second, plaintext);
}
void saveSelection(Cursor const & cur)
{
// This function is called, not when a selection is formed, but when
// a selection is cleared. Therefore, multiple keyboard selection
// will not repeatively trigger this function (bug 3877).
if (cur.selection()
&& cur.selBegin() == cur.bv().cursor().selBegin()
&& cur.selEnd() == cur.bv().cursor().selEnd()) {
LYXERR(Debug::SELECTION, "saveSelection: '" << cur.selectionAsString(true) << "'");
copySelectionToStack(cur, selectionBuffer);
}
}
bool selection()
{
return !selectionBuffer.empty();
}
void clearSelection()
{
selectionBuffer.clear();
}
void clearCutStack()
{
theCuts.clear();
}
docstring selection(size_t sel_index)
{
return sel_index < theCuts.size()
? theCuts[sel_index].first.back().asString(AS_STR_INSETS | AS_STR_NEWLINES)
: docstring();
}
void pasteParagraphList(Cursor & cur, ParagraphList const & parlist,
DocumentClassConstPtr docclass, ErrorList & errorList)
{
if (cur.inTexted()) {
Text * text = cur.text();
LBUFERR(text);
PasteReturnValue prv =
pasteSelectionHelper(cur, parlist, docclass, 0, errorList);
cur.forceBufferUpdate();
cur.clearSelection();
text->setCursor(cur, prv.par, prv.pos);
}
// mathed is handled in InsetMathNest/InsetMathGrid
LATTEST(!cur.inMathed());
}
bool pasteFromStack(Cursor & cur, ErrorList & errorList, size_t sel_index)
{
// this does not make sense, if there is nothing to paste
if (!checkPastePossible(sel_index))
return false;
cur.recordUndo();
pasteParagraphList(cur, theCuts[sel_index].first,
theCuts[sel_index].second, errorList);
return true;
}
bool pasteClipboardText(Cursor & cur, ErrorList & errorList, bool asParagraphs,
Clipboard::TextType type)
{
// Use internal clipboard if it is the most recent one
// This overrides asParagraphs and type on purpose!
if (theClipboard().isInternal())
return pasteFromStack(cur, errorList, 0);
// First try LyX format
if ((type == Clipboard::LyXTextType ||
type == Clipboard::LyXOrPlainTextType ||
type == Clipboard::AnyTextType) &&
theClipboard().hasTextContents(Clipboard::LyXTextType)) {
string lyx = theClipboard().getAsLyX();
if (!lyx.empty()) {
// For some strange reason gcc 3.2 and 3.3 do not accept
// Buffer buffer(string(), false);
Buffer buffer("", false);
buffer.setUnnamed(true);
if (buffer.readString(lyx)) {
cur.recordUndo();
pasteParagraphList(cur, buffer.paragraphs(),
buffer.params().documentClassPtr(), errorList);
return true;
}
}
}
// Then try TeX and HTML
Clipboard::TextType types[2] = {Clipboard::HtmlTextType, Clipboard::LaTeXTextType};
string names[2] = {"html", "latexclipboard"};
for (int i = 0; i < 2; ++i) {
if (type != types[i] && type != Clipboard::AnyTextType)
continue;
bool available = theClipboard().hasTextContents(types[i]);
// If a specific type was explicitly requested, try to
// interpret plain text: The user told us that the clipboard
// contents is in the desired format
if (!available && type == types[i]) {
types[i] = Clipboard::PlainTextType;
available = theClipboard().hasTextContents(types[i]);
}
if (available) {
docstring text = theClipboard().getAsText(types[i]);
available = !text.empty();
if (available) {
// For some strange reason gcc 3.2 and 3.3 do not accept
// Buffer buffer(string(), false);
Buffer buffer("", false);
buffer.setUnnamed(true);
available = buffer.importString(names[i], text, errorList);
if (available)
available = !buffer.paragraphs().empty();
if (available && !buffer.paragraphs()[0].empty()) {
cur.recordUndo();
pasteParagraphList(cur, buffer.paragraphs(),
buffer.params().documentClassPtr(), errorList);
return true;
}
}
}
}
// Then try plain text
docstring const text = theClipboard().getAsText(Clipboard::PlainTextType);
if (text.empty())
return false;
cur.recordUndo();
if (asParagraphs)
cur.text()->insertStringAsParagraphs(cur, text, cur.current_font);
else
cur.text()->insertStringAsLines(cur, text, cur.current_font);
return true;
}
void pasteSimpleText(Cursor & cur, bool asParagraphs)
{
docstring text;
// Use internal clipboard if it is the most recent one
if (theClipboard().isInternal()) {
if (!checkPastePossible(0))
return;
ParagraphList const & pars = theCuts[0].first;
ParagraphList::const_iterator it = pars.begin();
for (; it != pars.end(); ++it) {
if (it != pars.begin())
text += "\n";
text += (*it).asString();
}
asParagraphs = false;
} else {
// Then try plain text
text = theClipboard().getAsText(Clipboard::PlainTextType);
}
if (text.empty())
return;
cur.recordUndo();
cutSelection(cur, true, false);
if (asParagraphs)
cur.text()->insertStringAsParagraphs(cur, text, cur.current_font);
else
cur.text()->insertStringAsLines(cur, text, cur.current_font);
}
void pasteClipboardGraphics(Cursor & cur, ErrorList & /* errorList */,
Clipboard::GraphicsType preferedType)
{
LASSERT(theClipboard().hasGraphicsContents(preferedType), return);
// get picture from clipboard
FileName filename = theClipboard().getAsGraphics(cur, preferedType);
if (filename.empty())
return;
// create inset for graphic
InsetGraphics * inset = new InsetGraphics(cur.buffer());
InsetGraphicsParams params;
params.filename = support::DocFileName(filename.absFileName(), false);
inset->setParams(params);
cur.recordUndo();
cur.insert(inset);
}
void pasteSelection(Cursor & cur, ErrorList & errorList)
{
if (selectionBuffer.empty())
return;
cur.recordUndo();
pasteParagraphList(cur, selectionBuffer[0].first,
selectionBuffer[0].second, errorList);
}
void replaceSelectionWithString(Cursor & cur, docstring const & str)
{
cur.recordUndo();
DocIterator selbeg = cur.selectionBegin();
// Get font setting before we cut, we need a copy here, not a bare reference.
Font const font =
selbeg.paragraph().getFontSettings(cur.buffer()->params(), selbeg.pos());
// Insert the new string
pos_type pos = cur.selEnd().pos();
Paragraph & par = cur.selEnd().paragraph();
docstring::const_iterator cit = str.begin();
docstring::const_iterator end = str.end();
for (; cit != end; ++cit, ++pos)
par.insertChar(pos, *cit, font, cur.buffer()->params().trackChanges);
// Cut the selection
cutSelection(cur, true, false);
}
void replaceSelection(Cursor & cur)
{
if (cur.selection())
cutSelection(cur, true, false);
}
void eraseSelection(Cursor & cur)
{
//lyxerr << "cap::eraseSelection begin: " << cur << endl;
CursorSlice const & i1 = cur.selBegin();
CursorSlice const & i2 = cur.selEnd();
if (i1.inset().asInsetMath()) {
saveSelection(cur);
cur.top() = i1;
if (i1.idx() == i2.idx()) {
i1.cell().erase(i1.pos(), i2.pos());
// We may have deleted i1.cell(cur.pos()).
// Make sure that pos is valid.
if (cur.pos() > cur.lastpos())
cur.pos() = cur.lastpos();
} else {
InsetMath * p = i1.asInsetMath();
Inset::row_type r1, r2;
Inset::col_type c1, c2;
region(i1, i2, r1, r2, c1, c2);
for (Inset::row_type row = r1; row <= r2; ++row)
for (Inset::col_type col = c1; col <= c2; ++col)
p->cell(p->index(row, col)).clear();
// We've deleted the whole cell. Only pos 0 is valid.
cur.pos() = 0;
}
// need a valid cursor. (Lgb)
cur.clearSelection();
} else {
lyxerr << "can't erase this selection 1" << endl;
}
//lyxerr << "cap::eraseSelection end: " << cur << endl;
}
void selDel(Cursor & cur)
{
//lyxerr << "cap::selDel" << endl;
if (cur.selection())
eraseSelection(cur);
}
void selClearOrDel(Cursor & cur)
{
//lyxerr << "cap::selClearOrDel" << endl;
if (lyxrc.auto_region_delete)
selDel(cur);
else
cur.setSelection(false);
}
docstring grabSelection(Cursor const & cur)
{
if (!cur.selection())
return docstring();
#if 0
// grab selection by glueing multiple cells together. This is not what
// we want because selections spanning multiple cells will get "&" and "\\"
// seperators.
ostringstream os;
for (DocIterator dit = cur.selectionBegin();
dit != cur.selectionEnd(); dit.forwardPos())
os << asString(dit.cell());
return os.str();
#endif
CursorSlice i1 = cur.selBegin();
CursorSlice i2 = cur.selEnd();
if (i1.idx() == i2.idx()) {
if (i1.inset().asInsetMath()) {
MathData::const_iterator it = i1.cell().begin();
Buffer * buf = cur.buffer();
return asString(MathData(buf, it + i1.pos(), it + i2.pos()));
} else {
return from_ascii("unknown selection 1");
}
}
Inset::row_type r1, r2;
Inset::col_type c1, c2;
region(i1, i2, r1, r2, c1, c2);
docstring data;
if (i1.inset().asInsetMath()) {
for (Inset::row_type row = r1; row <= r2; ++row) {
if (row > r1)
data += "\\\\";
for (Inset::col_type col = c1; col <= c2; ++col) {
if (col > c1)
data += '&';
data += asString(i1.asInsetMath()->
cell(i1.asInsetMath()->index(row, col)));
}
}
} else {
data = from_ascii("unknown selection 2");
}
return data;
}
void dirtyTabularStack(bool b)
{
dirty_tabular_stack_ = b;
}
bool tabularStackDirty()
{
return dirty_tabular_stack_;
}
} // namespace cap
} // namespace lyx
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