2 * This file is part of LyX, the document processor.
3 * Licence details can be found in the file COPYING.
6 * \author Lars Gullik Bjønnes
8 * Full author contact details are available in file CREDITS
13 #include "CutAndPaste.h"
14 #include "BufferView.h"
16 #include "errorlist.h"
17 #include "paragraph.h"
18 #include "ParagraphParameters.h"
20 #include "lyxcursor.h"
21 #include "iterators.h"
22 #include "lyxtextclasslist.h"
23 #include "undo_funcs.h"
25 #include "paragraph_funcs.h"
27 #include "insets/insetinclude.h"
28 #include "insets/insettabular.h"
30 #include "support/LAssert.h"
31 #include "support/lstrings.h"
32 #include "support/limited_stack.h"
41 using lyx::textclass_type;
44 typedef limited_stack<pair<ParagraphList, textclass_type> > CutStack;
53 CutAndPaste::availableSelections(Buffer const & buffer)
55 vector<string> selList;
57 CutStack::const_iterator cit = cuts.begin();
58 CutStack::const_iterator end = cuts.end();
59 for (; cit != end; ++cit) {
60 ParagraphList const & pars = cit->first;
62 ParagraphList::const_iterator pit = pars.begin();
63 ParagraphList::const_iterator pend = pars.end();
64 for (; pit != pend; ++pit) {
65 asciiSel += pit->asString(&buffer, false);
66 if (asciiSel.size() > 25) {
67 asciiSel.replace(22, string::npos, "...");
72 selList.push_back(asciiSel);
79 PitPosPair CutAndPaste::cutSelection(BufferParams const & params,
81 ParagraphList::iterator startpit,
82 ParagraphList::iterator endpit,
83 int startpos, int endpos,
84 textclass_type tc, bool doclear)
86 copySelection(startpit, endpit, startpos, endpos, tc);
87 return eraseSelection(params, pars, startpit, endpit, startpos,
92 PitPosPair CutAndPaste::eraseSelection(BufferParams const & params,
94 ParagraphList::iterator startpit,
95 ParagraphList::iterator endpit,
96 int startpos, int endpos, bool doclear)
98 if (startpit == pars.end() || (startpos > startpit->size()))
99 return PitPosPair(endpit, endpos);
101 if (endpit == pars.end() || startpit == endpit) {
102 endpos -= startpit->erase(startpos, endpos);
103 return PitPosPair(endpit, endpos);
106 // clear end/begin fragments of the first/last par in selection
107 bool all_erased = true;
109 startpit->erase(startpos, startpit->size());
110 if (startpit->size() != startpos)
113 endpos -= endpit->erase(0, endpos);
117 // Loop through the deleted pars if any, erasing as needed
119 ParagraphList::iterator pit = boost::next(startpit);
121 while (pit != endpit && pit != pars.end()) {
122 ParagraphList::iterator const next = boost::next(pit);
123 // "erase" the contents of the par
124 pit->erase(0, pit->size());
126 // remove the par if it's now empty
133 #if 0 // FIXME: why for cut but not copy ?
134 // the cut selection should begin with standard layout
136 buf->params().clear();
138 buf->layout(textclasslist[buffer->params.textclass].defaultLayoutName());
142 if (boost::next(startpit) == pars.end())
143 return PitPosPair(endpit, endpos);
146 boost::next(startpit)->stripLeadingSpaces();
149 // paste the paragraphs again, if possible
151 (startpit->hasSameLayout(*boost::next(startpit)) ||
152 boost::next(startpit)->empty())) {
153 mergeParagraph(params, pars, startpit);
154 // this because endpar gets deleted here!
159 return PitPosPair(endpit, endpos);
166 struct resetOwnerAndChanges {
167 void operator()(Paragraph & p) {
175 bool CutAndPaste::copySelection(ParagraphList::iterator startpit,
176 ParagraphList::iterator endpit,
177 int start, int end, textclass_type tc)
179 lyx::Assert(&*startpit);
180 lyx::Assert(&*endpit);
181 lyx::Assert(0 <= start && start <= startpit->size());
182 lyx::Assert(0 <= end && end <= endpit->size());
183 lyx::Assert(startpit != endpit || start <= end);
185 ParagraphList paragraphs;
187 // Clone the paragraphs within the selection.
188 ParagraphList::iterator postend = boost::next(endpit);
190 paragraphs.assign(startpit, postend);
191 for_each(paragraphs.begin(), paragraphs.end(), resetOwnerAndChanges());
193 // Cut out the end of the last paragraph.
194 Paragraph & back = paragraphs.back();
195 back.erase(end, back.size());
197 // Cut out the begin of the first paragraph
198 Paragraph & front = paragraphs.front();
199 front.erase(0, start);
201 cuts.push(make_pair(paragraphs, tc));
207 pair<PitPosPair, ParagraphList::iterator>
208 CutAndPaste::pasteSelection(Buffer const & buffer,
209 ParagraphList & pars,
210 ParagraphList::iterator pit, int pos,
212 ErrorList & errorlist)
214 return pasteSelection(buffer, pars, pit, pos, tc, 0, errorlist);
218 pair<PitPosPair, ParagraphList::iterator>
219 CutAndPaste::pasteSelection(Buffer const & buffer,
220 ParagraphList & pars,
221 ParagraphList::iterator pit, int pos,
222 textclass_type tc, size_t cut_index,
223 ErrorList & errorlist)
225 if (!checkPastePossible())
226 return make_pair(PitPosPair(pit, pos), pit);
228 lyx::Assert (pos <= pit->size());
230 // Make a copy of the CaP paragraphs.
231 ParagraphList simple_cut_clone = cuts[cut_index].first;
232 textclass_type const textclass = cuts[cut_index].second;
234 // Now remove all out of the pars which is NOT allowed in the
235 // new environment and set also another font if that is required.
237 // Make sure there is no class difference.
238 SwitchLayoutsBetweenClasses(textclass, tc, simple_cut_clone,
241 ParagraphList::iterator tmpbuf = simple_cut_clone.begin();
242 int depth_delta = pit->params().depth() - tmpbuf->params().depth();
244 Paragraph::depth_type max_depth = pit->getMaxDepthAfter();
246 for (; tmpbuf != simple_cut_clone.end(); ++tmpbuf) {
247 // If we have a negative jump so that the depth would
248 // go below 0 depth then we have to redo the delta to
249 // this new max depth level so that subsequent
250 // paragraphs are aligned correctly to this paragraph
252 if ((int(tmpbuf->params().depth()) + depth_delta) < 0)
255 // Set the right depth so that we are not too deep or shallow.
256 tmpbuf->params().depth(tmpbuf->params().depth() + depth_delta);
257 if (tmpbuf->params().depth() > max_depth)
258 tmpbuf->params().depth(max_depth);
260 // Only set this from the 2nd on as the 2nd depends
261 // for maxDepth still on pit.
262 if (tmpbuf != simple_cut_clone.begin())
263 max_depth = tmpbuf->getMaxDepthAfter();
265 // Set the inset owner of this paragraph.
266 tmpbuf->setInsetOwner(pit->inInset());
267 for (pos_type i = 0; i < tmpbuf->size(); ++i) {
268 if (tmpbuf->getChar(i) == Paragraph::META_INSET) {
269 if (!pit->insetAllowed(tmpbuf->getInset(i)->lyxCode())) {
273 LyXFont f1 = tmpbuf->getFont(buffer.params, i, outerFont(pit, pars));
275 if (!pit->checkInsertChar(f1)) {
277 } else if (f1 != f2) {
278 tmpbuf->setFont(i, f1);
284 // Make the buf exactly the same layout than
285 // the cursor paragraph.
286 simple_cut_clone.begin()->makeSameLayout(*pit);
288 // Prepare the paragraphs and insets for insertion
289 // A couple of insets store buffer references so need
291 ParIterator fpit(simple_cut_clone.begin(), simple_cut_clone);
292 ParIterator fend(simple_cut_clone.end(), simple_cut_clone);
294 for (; fpit != fend; ++fpit) {
295 InsetList::iterator lit = fpit->insetlist.begin();
296 InsetList::iterator eit = fpit->insetlist.end();
298 for (; lit != eit; ++lit) {
299 switch (lit->inset->lyxCode()) {
300 case Inset::INCLUDE_CODE: {
301 InsetInclude * ii = static_cast<InsetInclude*>(lit->inset);
302 InsetInclude::Params ip = ii->params();
303 ip.masterFilename_ = buffer.fileName();
308 case Inset::TABULAR_CODE: {
309 InsetTabular * it = static_cast<InsetTabular*>(lit->inset);
310 it->buffer(const_cast<Buffer*>(&buffer));
320 bool paste_the_end = false;
322 // Open the paragraph for inserting the buf
324 if (pit->size() > pos || boost::next(pit) == pars.end()) {
325 breakParagraphConservative(buffer.params,
327 paste_the_end = true;
330 // Set the end for redoing later.
331 ParagraphList::iterator endpit = boost::next(boost::next(pit));
335 ParagraphList::iterator past_pit = boost::next(pit);
336 pars.splice(past_pit, simple_cut_clone);
337 ParagraphList::iterator last_paste = boost::prior(past_pit);
339 // If we only inserted one paragraph.
340 if (boost::next(pit) == last_paste)
343 mergeParagraph(buffer.params, pars, pit);
345 // Store the new cursor position.
347 pos = last_paste->size();
349 // Maybe some pasting.
350 #warning CHECK! Are we comparing last_paste to the wrong list here? (Lgb)
351 if (boost::next(last_paste) != pars.end() &&
353 if (boost::next(last_paste)->hasSameLayout(*last_paste)) {
354 mergeParagraph(buffer.params, pars,
356 } else if (boost::next(last_paste)->empty()) {
357 boost::next(last_paste)->makeSameLayout(*last_paste);
358 mergeParagraph(buffer.params, pars,
360 } else if (last_paste->empty()) {
361 last_paste->makeSameLayout(*boost::next(last_paste));
362 mergeParagraph(buffer.params, pars,
365 boost::next(last_paste)->stripLeadingSpaces();
368 return make_pair(PitPosPair(pit, pos), endpit);
372 int CutAndPaste::nrOfParagraphs()
374 return cuts.empty() ? 0 : cuts[0].first.size();
378 int CutAndPaste::SwitchLayoutsBetweenClasses(textclass_type c1,
380 ParagraphList & pars,
381 ErrorList & errorlist)
383 lyx::Assert(!pars.empty());
389 LyXTextClass const & tclass1 = textclasslist[c1];
390 LyXTextClass const & tclass2 = textclasslist[c2];
391 ParIterator end = ParIterator(pars.end(), pars);
392 for (ParIterator it = ParIterator(pars.begin(), pars); it != end; ++it) {
393 string const name = it->layout()->name();
394 bool hasLayout = tclass2.hasLayout(name);
397 it->layout(tclass2[name]);
399 it->layout(tclass2.defaultLayout());
401 if (!hasLayout && name != tclass1.defaultLayoutName()) {
403 string const s = bformat(
404 _("Layout had to be changed from\n%1$s to %2$s\n"
405 "because of class conversion from\n%3$s to %4$s"),
406 name, it->layout()->name(), tclass1.name(), tclass2.name());
407 // To warn the user that something had to be done.
408 errorlist.push_back(ErrorItem("Changed Layout", s,
417 bool CutAndPaste::checkPastePossible()
419 return !cuts.empty() && !cuts[0].first.empty();