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"
17 #include "BufferView.h"
19 #include "paragraph.h"
20 #include "lyx_gui_misc.h"
21 #include "lyxcursor.h"
23 #include "iterators.h"
24 #include "lyxtextclasslist.h"
26 #include "insets/inseterror.h"
30 using lyx::layout_type;
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
137 // paste the paragraphs again, if possible
139 startpar->next()->stripLeadingSpaces(textclass);
140 if (startpar->hasSameLayout(startpar->next()) ||
141 !startpar->next()->size()) {
142 startpar->pasteParagraph(current_view->buffer()->params);
143 (*endpar) = startpar; // this because endpar gets deleted here!
145 // this paragraph's are of noone's owner!
156 bool CutAndPaste::copySelection(Paragraph * startpar, Paragraph * endpar,
157 int start, int end, char tc)
159 if (!startpar || (start > startpar->size()))
166 if (!endpar || startpar == endpar) {
167 // only within one paragraph
170 if (end > startpar->size())
171 end = startpar->size();
172 for (; i < end; ++i) {
173 startpar->copyIntoMinibuffer(*current_view->buffer(), i);
174 buf->insertFromMinibuffer(buf->size());
177 // copy more than one paragraph
178 // clone the paragraphs within the selection
179 Paragraph * tmppar = startpar;
180 buf = new Paragraph(*tmppar, false);
181 Paragraph * tmppar2 = buf;
183 while (tmppar != endpar
185 tmppar = tmppar->next();
186 tmppar2->next(new Paragraph(*tmppar, false));
187 tmppar2->next()->previous(tmppar2);
188 tmppar2 = tmppar2->next();
192 // the buf paragraph is too big
193 pos_type tmpi2 = start;
194 for (; tmpi2; --tmpi2)
197 // now tmppar 2 is too big, delete all after end
199 while (tmppar2->size() > tmpi2) {
200 tmppar2->erase(tmppar2->size() - 1);
202 // this paragraph's are of noone's owner!
205 tmppar->setInsetOwner(0);
206 tmppar = tmppar->next();
213 bool CutAndPaste::pasteSelection(Paragraph ** par, Paragraph ** endpar,
216 if (!checkPastePossible(*par))
219 if (pos > (*par)->size())
220 pos = (*par)->size();
222 // Paragraph * tmpbuf;
223 Paragraph * tmppar = *par;
226 // There are two cases: cutbuffer only one paragraph or many
228 // only within a paragraph
229 Paragraph * tmpbuf = new Paragraph(*buf, false);
231 // Some provisions should be done here for checking
232 // if we are inserting at the beginning of a
233 // paragraph. If there are a space at the beginning
234 // of the text to insert and we are inserting at
235 // the beginning of the paragraph the space should
237 while (buf->size()) {
238 // This is an attempt to fix the
239 // "never insert a space at the
240 // beginning of a paragraph" problem.
241 if (!tmppos && buf->isLineSeparator(0)) {
244 buf->cutIntoMinibuffer(current_view->buffer()->params, 0);
246 if (tmppar->insertFromMinibuffer(tmppos))
252 *endpar = tmppar->next();
257 // make a copy of the simple cut_buffer
258 Paragraph * tmpbuf = buf;
259 Paragraph * simple_cut_clone = new Paragraph(*tmpbuf, false);
260 Paragraph * tmpbuf2 = simple_cut_clone;
262 while (tmpbuf->next()) {
263 tmpbuf = tmpbuf->next();
264 tmpbuf2->next(new Paragraph(*tmpbuf, false));
265 tmpbuf2->next()->previous(tmpbuf2);
266 tmpbuf2 = tmpbuf2->next();
269 // now remove all out of the buffer which is NOT allowed in the
270 // new environment and set also another font if that is required
273 // set the inset owner of this paragraph
274 tmpbuf->setInsetOwner((*par)->inInset());
275 for(pos_type i = 0; i < tmpbuf->size(); ++i) {
276 if (tmpbuf->getChar(i) == Paragraph::META_INSET) {
277 if (!(*par)->insetAllowed(tmpbuf->getInset(i)->lyxCode()))
282 LyXFont f1 = tmpbuf->getFont(current_view->buffer()->params,i);
284 if (!(*par)->checkInsertChar(f1)) {
286 } else if (f1 != f2) {
287 tmpbuf->setFont(i, f1);
291 tmpbuf = tmpbuf->next();
294 // make sure there is no class difference
295 SwitchLayoutsBetweenClasses(textclass, tc, buf,
296 current_view->buffer()->params);
298 // make the buf exactly the same layout than
299 // the cursor paragraph
300 buf->makeSameLayout(*par);
302 // find the end of the buffer
303 Paragraph * lastbuffer = buf;
304 while (lastbuffer->next())
305 lastbuffer = lastbuffer->next();
307 bool paste_the_end = false;
309 // open the paragraph for inserting the buf
311 if (((*par)->size() > pos) || !(*par)->next()) {
312 (*par)->breakParagraphConservative(current_view->buffer()->params,
314 paste_the_end = true;
316 // set the end for redoing later
317 *endpar = (*par)->next()->next();
320 lastbuffer->next((*par)->next());
321 (*par)->next()->previous(lastbuffer);
326 if ((*par)->next() == lastbuffer)
329 (*par)->pasteParagraph(current_view->buffer()->params);
330 // store the new cursor position
332 pos = lastbuffer->size();
333 // maybe some pasting
334 if (lastbuffer->next() && paste_the_end) {
335 if (lastbuffer->next()->hasSameLayout(lastbuffer)) {
336 lastbuffer->pasteParagraph(current_view->buffer()->params);
337 } else if (!lastbuffer->next()->size()) {
338 lastbuffer->next()->makeSameLayout(lastbuffer);
339 lastbuffer->pasteParagraph(current_view->buffer()->params);
340 } else if (!lastbuffer->size()) {
341 lastbuffer->makeSameLayout(lastbuffer->next());
342 lastbuffer->pasteParagraph(current_view->buffer()->params);
344 lastbuffer->next()->stripLeadingSpaces(tc);
346 // restore the simple cut buffer
347 buf = simple_cut_clone;
354 int CutAndPaste::nrOfParagraphs()
360 Paragraph * tmppar = buf;
361 while (tmppar->next()) {
363 tmppar = tmppar->next();
369 int CutAndPaste::SwitchLayoutsBetweenClasses(textclass_type c1,
372 BufferParams const & bparams)
375 if (!par || c1 == c2)
378 ParIterator end = ParIterator();
379 for (ParIterator it = ParIterator(par); it != end; ++it) {
381 string const name = textclasslist.NameOfLayout(c1, par->layout);
383 pair<bool, layout_type> pp =
384 textclasslist.NumberOfLayout(c2, name);
388 // not found: use default layout "Standard" (0)
393 if (name != textclasslist.NameOfLayout(c2, par->layout)) {
395 string const s = _("Layout had to be changed from\n")
397 + textclasslist.NameOfLayout(c2, par->layout)
398 + _("\nbecause of class conversion from\n")
399 + textclasslist.NameOfClass(c1) + _(" to ")
400 + textclasslist.NameOfClass(c2);
401 InsetError * new_inset = new InsetError(s);
402 par->insertInset(0, new_inset,
403 LyXFont(LyXFont::ALL_INHERIT,
411 bool CutAndPaste::checkPastePossible(Paragraph *)
413 if (!buf) return false;