1 /* This file is part of
2 * ======================================================
4 * LyX, The Document Processor
6 * Copyright 1995-2001 The LyX Team.
8 * ====================================================== */
13 #pragma implementation
16 #include "CutAndPaste.h"
18 #include "BufferView.h"
20 #include "paragraph.h"
21 #include "ParagraphParameters.h"
22 #include "lyxcursor.h"
24 #include "iterators.h"
25 #include "lyxtextclasslist.h"
27 #include "insets/inseterror.h"
31 using lyx::textclass_type;
33 extern BufferView * current_view;
35 // Jürgen, note that this means that you cannot currently have a list
36 // of selections cut/copied. So IMHO later we should have a
37 // list/vector/deque that we could store
38 // struct selection_item {
40 // LyXTextClassList::size_type textclass;
42 // in and some method of choosing beween them (based on the first few chars
43 // in the selection probably.) This would be a nice feature and quite
44 // easy to implement. (Lgb)
46 // Sure but I just cleaned up this code for now with the same functionality
47 // as before. I also want to add a XClipboard function so that we can copy
48 // text from LyX to some other X-application in the form of ASCII or in the
49 // form of LaTeX (or Docbook depending on the document-class!). Think how nice
50 // it could be to select a math-inset do a "Copy to X-Clipboard as LaTeX" and
51 // then do a middle mouse button click in the application you want and have
52 // the whole formula there in LaTeX-Code. (Jug)
57 textclass_type textclass = 0;
59 // for now here this should be in another Cut&Paste Class!
60 // Jürgen, I moved this out of CutAndPaste since it does not operate on any
61 // member of the CutAndPaste class and in addition it was private.
62 // Perhaps it even should take a parameter? (Lgb)
81 bool CutAndPaste::cutSelection(Paragraph * startpar, Paragraph ** endpar,
82 int start, int & end, char tc, bool doclear,
85 if (!startpar || (start > startpar->size()))
93 if (!(*endpar) || startpar == (*endpar)) {
94 // only within one paragraph
98 if (end > startpar->size())
99 end = startpar->size();
100 for (; i < end; ++i) {
102 startpar->copyIntoMinibuffer(*current_view->buffer(),
104 startpar->erase(start);
106 buf->insertFromMinibuffer(buf->size());
110 // more than one paragraph
111 (*endpar)->breakParagraphConservative(current_view->buffer()->params,
113 *endpar = (*endpar)->next();
116 startpar->breakParagraphConservative(current_view->buffer()->params,
119 // store the selection
121 buf = startpar->next();
124 startpar->next()->previous(0);
126 (*endpar)->previous()->next(0);
129 startpar->next(*endpar);
131 (*endpar)->previous(startpar);
133 // the cut selection should begin with standard layout
135 buf->params().clear();
137 buf->layout(textclasslist[current_view->buffer()->params.textclass].defaultLayoutName());
140 // paste the paragraphs again, if possible
142 startpar->next()->stripLeadingSpaces(textclass);
143 if (startpar->hasSameLayout(startpar->next()) ||
144 !startpar->next()->size()) {
145 startpar->pasteParagraph(current_view->buffer()->params);
146 (*endpar) = startpar; // this because endpar gets deleted here!
148 // this paragraph's are of noone's owner!
159 bool CutAndPaste::copySelection(Paragraph * startpar, Paragraph * endpar,
160 int start, int end, char tc)
162 if (!startpar || (start > startpar->size()))
169 if (!endpar || startpar == endpar) {
170 // only within one paragraph
172 buf->layout(startpar->layout());
174 if (end > startpar->size())
175 end = startpar->size();
176 for (; i < end; ++i) {
177 startpar->copyIntoMinibuffer(*current_view->buffer(), i);
178 buf->insertFromMinibuffer(buf->size());
181 // copy more than one paragraph
182 // clone the paragraphs within the selection
183 Paragraph * tmppar = startpar;
184 buf = new Paragraph(*tmppar, false);
185 Paragraph * tmppar2 = buf;
187 while (tmppar != endpar
189 tmppar = tmppar->next();
190 tmppar2->next(new Paragraph(*tmppar, false));
191 tmppar2->next()->previous(tmppar2);
192 tmppar2 = tmppar2->next();
196 // the buf paragraph is too big
197 pos_type tmpi2 = start;
198 for (; tmpi2; --tmpi2)
201 // now tmppar 2 is too big, delete all after end
203 while (tmppar2->size() > tmpi2) {
204 tmppar2->erase(tmppar2->size() - 1);
206 // this paragraph's are of noone's owner!
209 tmppar->setInsetOwner(0);
210 tmppar = tmppar->next();
217 bool CutAndPaste::pasteSelection(Paragraph ** par, Paragraph ** endpar,
220 if (!checkPastePossible(*par))
223 if (pos > (*par)->size())
224 pos = (*par)->size();
227 // Paragraph * tmpbuf;
228 Paragraph * tmppar = *par;
231 // There are two cases: cutbuffer only one paragraph or many
233 // only within a paragraph
234 Paragraph * tmpbuf = new Paragraph(*buf, false);
236 // Some provisions should be done here for checking
237 // if we are inserting at the beginning of a
238 // paragraph. If there are a space at the beginning
239 // of the text to insert and we are inserting at
240 // the beginning of the paragraph the space should
242 while (buf->size()) {
243 // This is an attempt to fix the
244 // "never insert a space at the
245 // beginning of a paragraph" problem.
246 if (!tmppos && buf->isLineSeparator(0)) {
249 buf->cutIntoMinibuffer(current_view->buffer()->params, 0);
251 if (tmppar->insertFromMinibuffer(tmppos))
257 *endpar = tmppar->next();
264 // make a copy of the simple cut_buffer
265 Paragraph * tmpbuf = buf;
266 Paragraph * simple_cut_clone = new Paragraph(*tmpbuf, false);
267 Paragraph * tmpbuf2 = simple_cut_clone;
269 while (tmpbuf->next()) {
270 tmpbuf = tmpbuf->next();
271 tmpbuf2->next(new Paragraph(*tmpbuf, false));
272 tmpbuf2->next()->previous(tmpbuf2);
273 tmpbuf2 = tmpbuf2->next();
276 // now remove all out of the buffer which is NOT allowed in the
277 // new environment and set also another font if that is required
279 int depth_delta = (*par)->params().depth() - tmpbuf->params().depth();
280 // temporary set *par as previous of tmpbuf as we might have to realize
282 tmpbuf->previous(*par);
283 Paragraph::depth_type max_depth = (*par)->getMaxDepthAfter(current_view->buffer());
285 // if we have a negative jump so that the depth would go below
286 // 0 depth then we have to redo the delta to this new max depth
287 // level so that subsequent paragraphs are aligned correctly to
288 // this paragraph at level 0.
289 if ((static_cast<int>(tmpbuf->params().depth()) + depth_delta) < 0)
291 // set the right depth so that we are not too deep or shallow.
292 tmpbuf->params().depth(tmpbuf->params().depth() + depth_delta);
293 if (tmpbuf->params().depth() > max_depth)
294 tmpbuf->params().depth(max_depth);
295 // only set this from the 2nd on as the 2nd depends for maxDepth
297 if (tmpbuf->previous() != (*par))
298 max_depth = tmpbuf->getMaxDepthAfter(current_view->buffer());
299 // set the inset owner of this paragraph
300 tmpbuf->setInsetOwner((*par)->inInset());
301 for(pos_type i = 0; i < tmpbuf->size(); ++i) {
302 if (tmpbuf->getChar(i) == Paragraph::META_INSET) {
303 if (!(*par)->insetAllowed(tmpbuf->getInset(i)->lyxCode()))
308 LyXFont f1 = tmpbuf->getFont(current_view->buffer()->params,i);
310 if (!(*par)->checkInsertChar(f1)) {
312 } else if (f1 != f2) {
313 tmpbuf->setFont(i, f1);
317 tmpbuf = tmpbuf->next();
322 // make sure there is no class difference
323 SwitchLayoutsBetweenClasses(textclass, tc, buf,
324 current_view->buffer()->params);
326 // make the buf exactly the same layout than
327 // the cursor paragraph
328 buf->makeSameLayout(*par);
330 // find the end of the buffer
331 Paragraph * lastbuffer = buf;
332 while (lastbuffer->next())
333 lastbuffer = lastbuffer->next();
335 bool paste_the_end = false;
337 // open the paragraph for inserting the buf
339 if (((*par)->size() > pos) || !(*par)->next()) {
340 (*par)->breakParagraphConservative(current_view->buffer()->params,
342 paste_the_end = true;
344 // set the end for redoing later
345 *endpar = (*par)->next()->next();
348 lastbuffer->next((*par)->next());
349 (*par)->next()->previous(lastbuffer);
354 if ((*par)->next() == lastbuffer)
357 (*par)->pasteParagraph(current_view->buffer()->params);
358 // store the new cursor position
360 pos = lastbuffer->size();
361 // maybe some pasting
362 if (lastbuffer->next() && paste_the_end) {
363 if (lastbuffer->next()->hasSameLayout(lastbuffer)) {
364 lastbuffer->pasteParagraph(current_view->buffer()->params);
365 } else if (!lastbuffer->next()->size()) {
366 lastbuffer->next()->makeSameLayout(lastbuffer);
367 lastbuffer->pasteParagraph(current_view->buffer()->params);
368 } else if (!lastbuffer->size()) {
369 lastbuffer->makeSameLayout(lastbuffer->next());
370 lastbuffer->pasteParagraph(current_view->buffer()->params);
372 lastbuffer->next()->stripLeadingSpaces(tc);
374 // restore the simple cut buffer
375 buf = simple_cut_clone;
382 int CutAndPaste::nrOfParagraphs()
388 Paragraph * tmppar = buf;
389 while (tmppar->next()) {
391 tmppar = tmppar->next();
397 int CutAndPaste::SwitchLayoutsBetweenClasses(textclass_type c1,
400 BufferParams const & bparams)
403 if (!par || c1 == c2)
406 ParIterator end = ParIterator();
407 for (ParIterator it = ParIterator(par); it != end; ++it) {
409 string const name = par->layout();
410 LyXTextClass const & tclass = textclasslist[c2];
412 bool hasLayout = tclass.hasLayout(name);
414 string lay = tclass.defaultLayoutName();
418 // not found: use default layout
419 lay = tclass.defaultLayoutName();
423 if (name != par->layout()) {
425 string const s = _("Layout had to be changed from\n")
428 + _("\nbecause of class conversion from\n")
429 + textclasslist[c1].name() + _(" to ")
430 + textclasslist[c2].name();
431 InsetError * new_inset = new InsetError(s);
432 par->insertInset(0, new_inset,
433 LyXFont(LyXFont::ALL_INHERIT,
441 bool CutAndPaste::checkPastePossible(Paragraph *)
443 if (!buf) return false;