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 // we do not use cit-> here because gcc 2.9x does not
62 ParagraphList const & pars = (*cit).first;
64 ParagraphList::const_iterator pit = pars.begin();
65 ParagraphList::const_iterator pend = pars.end();
66 for (; pit != pend; ++pit) {
67 asciiSel += pit->asString(&buffer, false);
68 if (asciiSel.size() > 25) {
69 asciiSel.replace(22, string::npos, "...");
74 selList.push_back(asciiSel);
81 PitPosPair CutAndPaste::cutSelection(BufferParams const & params,
83 ParagraphList::iterator startpit,
84 ParagraphList::iterator endpit,
85 int startpos, int endpos,
86 textclass_type tc, bool doclear)
88 copySelection(startpit, endpit, startpos, endpos, tc);
89 return eraseSelection(params, pars, startpit, endpit, startpos,
94 PitPosPair CutAndPaste::eraseSelection(BufferParams const & params,
96 ParagraphList::iterator startpit,
97 ParagraphList::iterator endpit,
98 int startpos, int endpos, bool doclear)
100 if (startpit == pars.end() || (startpos > startpit->size()))
101 return PitPosPair(endpit, endpos);
103 if (endpit == pars.end() || startpit == endpit) {
104 endpos -= startpit->erase(startpos, endpos);
105 return PitPosPair(endpit, endpos);
108 // clear end/begin fragments of the first/last par in selection
109 bool all_erased = true;
111 startpit->erase(startpos, startpit->size());
112 if (startpit->size() != startpos)
115 endpos -= endpit->erase(0, endpos);
119 // Loop through the deleted pars if any, erasing as needed
121 ParagraphList::iterator pit = boost::next(startpit);
123 while (pit != endpit && pit != pars.end()) {
124 ParagraphList::iterator const next = boost::next(pit);
125 // "erase" the contents of the par
126 pit->erase(0, pit->size());
128 // remove the par if it's now empty
135 #if 0 // FIXME: why for cut but not copy ?
136 // the cut selection should begin with standard layout
138 buf->params().clear();
140 buf->layout(textclasslist[buffer->params.textclass].defaultLayoutName());
144 if (boost::next(startpit) == pars.end())
145 return PitPosPair(endpit, endpos);
148 boost::next(startpit)->stripLeadingSpaces();
151 // paste the paragraphs again, if possible
153 (startpit->hasSameLayout(*boost::next(startpit)) ||
154 boost::next(startpit)->empty())) {
155 mergeParagraph(params, pars, startpit);
156 // this because endpar gets deleted here!
161 return PitPosPair(endpit, endpos);
168 struct resetOwnerAndChanges {
169 void operator()(Paragraph & p) {
177 bool CutAndPaste::copySelection(ParagraphList::iterator startpit,
178 ParagraphList::iterator endpit,
179 int start, int end, textclass_type tc)
181 lyx::Assert(&*startpit);
182 lyx::Assert(&*endpit);
183 lyx::Assert(0 <= start && start <= startpit->size());
184 lyx::Assert(0 <= end && end <= endpit->size());
185 lyx::Assert(startpit != endpit || start <= end);
187 ParagraphList paragraphs;
189 // Clone the paragraphs within the selection.
190 ParagraphList::iterator postend = boost::next(endpit);
192 paragraphs.assign(startpit, postend);
193 for_each(paragraphs.begin(), paragraphs.end(), resetOwnerAndChanges());
195 // Cut out the end of the last paragraph.
196 Paragraph & back = paragraphs.back();
197 back.erase(end, back.size());
199 // Cut out the begin of the first paragraph
200 Paragraph & front = paragraphs.front();
201 front.erase(0, start);
203 cuts.push(make_pair(paragraphs, tc));
209 pair<PitPosPair, ParagraphList::iterator>
210 CutAndPaste::pasteSelection(Buffer const & buffer,
211 ParagraphList & pars,
212 ParagraphList::iterator pit, int pos,
214 ErrorList & errorlist)
216 return pasteSelection(buffer, pars, pit, pos, tc, 0, errorlist);
220 pair<PitPosPair, ParagraphList::iterator>
221 CutAndPaste::pasteSelection(Buffer const & buffer,
222 ParagraphList & pars,
223 ParagraphList::iterator pit, int pos,
224 textclass_type tc, size_t cut_index,
225 ErrorList & errorlist)
227 if (!checkPastePossible())
228 return make_pair(PitPosPair(pit, pos), pit);
230 lyx::Assert (pos <= pit->size());
232 // Make a copy of the CaP paragraphs.
233 ParagraphList simple_cut_clone = cuts[cut_index].first;
234 textclass_type const textclass = cuts[cut_index].second;
236 // Now remove all out of the pars which is NOT allowed in the
237 // new environment and set also another font if that is required.
239 // Make sure there is no class difference.
240 SwitchLayoutsBetweenClasses(textclass, tc, simple_cut_clone,
243 ParagraphList::iterator tmpbuf = simple_cut_clone.begin();
244 int depth_delta = pit->params().depth() - tmpbuf->params().depth();
246 Paragraph::depth_type max_depth = pit->getMaxDepthAfter();
248 for (; tmpbuf != simple_cut_clone.end(); ++tmpbuf) {
249 // If we have a negative jump so that the depth would
250 // go below 0 depth then we have to redo the delta to
251 // this new max depth level so that subsequent
252 // paragraphs are aligned correctly to this paragraph
254 if ((int(tmpbuf->params().depth()) + depth_delta) < 0)
257 // Set the right depth so that we are not too deep or shallow.
258 tmpbuf->params().depth(tmpbuf->params().depth() + depth_delta);
259 if (tmpbuf->params().depth() > max_depth)
260 tmpbuf->params().depth(max_depth);
262 // Only set this from the 2nd on as the 2nd depends
263 // for maxDepth still on pit.
264 if (tmpbuf != simple_cut_clone.begin())
265 max_depth = tmpbuf->getMaxDepthAfter();
267 // Set the inset owner of this paragraph.
268 tmpbuf->setInsetOwner(pit->inInset());
269 for (pos_type i = 0; i < tmpbuf->size(); ++i) {
270 if (tmpbuf->getChar(i) == Paragraph::META_INSET) {
271 if (!pit->insetAllowed(tmpbuf->getInset(i)->lyxCode())) {
275 LyXFont f1 = tmpbuf->getFont(buffer.params, i, outerFont(pit, pars));
277 if (!pit->checkInsertChar(f1)) {
279 } else if (f1 != f2) {
280 tmpbuf->setFont(i, f1);
286 // Make the buf exactly the same layout than
287 // the cursor paragraph.
288 simple_cut_clone.begin()->makeSameLayout(*pit);
290 // Prepare the paragraphs and insets for insertion
291 // A couple of insets store buffer references so need
293 ParIterator fpit(simple_cut_clone.begin(), simple_cut_clone);
294 ParIterator fend(simple_cut_clone.end(), simple_cut_clone);
296 for (; fpit != fend; ++fpit) {
297 InsetList::iterator lit = fpit->insetlist.begin();
298 InsetList::iterator eit = fpit->insetlist.end();
300 for (; lit != eit; ++lit) {
301 switch (lit->inset->lyxCode()) {
302 case Inset::INCLUDE_CODE: {
303 InsetInclude * ii = static_cast<InsetInclude*>(lit->inset);
304 InsetInclude::Params ip = ii->params();
305 ip.masterFilename_ = buffer.fileName();
310 case Inset::TABULAR_CODE: {
311 InsetTabular * it = static_cast<InsetTabular*>(lit->inset);
312 it->buffer(const_cast<Buffer*>(&buffer));
322 bool paste_the_end = false;
324 // Open the paragraph for inserting the buf
326 if (pit->size() > pos || boost::next(pit) == pars.end()) {
327 breakParagraphConservative(buffer.params,
329 paste_the_end = true;
332 // Set the end for redoing later.
333 ParagraphList::iterator endpit = boost::next(boost::next(pit));
337 ParagraphList::iterator past_pit = boost::next(pit);
338 pars.splice(past_pit, simple_cut_clone);
339 ParagraphList::iterator last_paste = boost::prior(past_pit);
341 // If we only inserted one paragraph.
342 if (boost::next(pit) == last_paste)
345 mergeParagraph(buffer.params, pars, pit);
347 // Store the new cursor position.
349 pos = last_paste->size();
351 // Maybe some pasting.
352 #warning CHECK! Are we comparing last_paste to the wrong list here? (Lgb)
353 if (boost::next(last_paste) != pars.end() &&
355 if (boost::next(last_paste)->hasSameLayout(*last_paste)) {
356 mergeParagraph(buffer.params, pars,
358 } else if (boost::next(last_paste)->empty()) {
359 boost::next(last_paste)->makeSameLayout(*last_paste);
360 mergeParagraph(buffer.params, pars,
362 } else if (last_paste->empty()) {
363 last_paste->makeSameLayout(*boost::next(last_paste));
364 mergeParagraph(buffer.params, pars,
367 boost::next(last_paste)->stripLeadingSpaces();
370 return make_pair(PitPosPair(pit, pos), endpit);
374 int CutAndPaste::nrOfParagraphs()
376 return cuts.empty() ? 0 : cuts[0].first.size();
380 int CutAndPaste::SwitchLayoutsBetweenClasses(textclass_type c1,
382 ParagraphList & pars,
383 ErrorList & errorlist)
385 lyx::Assert(!pars.empty());
391 LyXTextClass const & tclass1 = textclasslist[c1];
392 LyXTextClass const & tclass2 = textclasslist[c2];
393 ParIterator end = ParIterator(pars.end(), pars);
394 for (ParIterator it = ParIterator(pars.begin(), pars); it != end; ++it) {
395 string const name = it->layout()->name();
396 bool hasLayout = tclass2.hasLayout(name);
399 it->layout(tclass2[name]);
401 it->layout(tclass2.defaultLayout());
403 if (!hasLayout && name != tclass1.defaultLayoutName()) {
405 string const s = bformat(
406 _("Layout had to be changed from\n%1$s to %2$s\n"
407 "because of class conversion from\n%3$s to %4$s"),
408 name, it->layout()->name(), tclass1.name(), tclass2.name());
409 // To warn the user that something had to be done.
410 errorlist.push_back(ErrorItem("Changed Layout", s,
419 bool CutAndPaste::checkPastePossible()
421 return !cuts.empty() && !cuts[0].first.empty();