3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Asger Alstrup
7 * \author Lars Gullik Bjønnes
8 * \author Alfredo Braunstein
9 * \author Jean-Marc Lasgouttes
10 * \author Angus Leeming
12 * \author André Pönitz
15 * \author Jürgen Vigna
17 * Full author contact details are available in file CREDITS.
25 #include "buffer_funcs.h"
26 #include "bufferparams.h"
27 #include "BufferView.h"
30 #include "coordcache.h"
32 #include "CutAndPaste.h"
34 #include "dispatchresult.h"
35 #include "errorlist.h"
37 #include "FloatList.h"
38 #include "funcrequest.h"
44 #include "lyxrow_funcs.h"
45 #include "paragraph.h"
46 #include "paragraph_funcs.h"
47 #include "ParagraphParameters.h"
51 #include "frontends/font_metrics.h"
52 #include "frontends/LyXView.h"
54 #include "insets/insetbibitem.h"
55 #include "insets/insetenv.h"
56 #include "insets/insetfloat.h"
57 #include "insets/insetwrap.h"
59 #include "support/lstrings.h"
60 #include "support/textutils.h"
61 #include "support/tostr.h"
67 using lyx::support::bformat;
70 using std::ostringstream;
74 LyXText::LyXText(BufferView * bv)
75 : maxwidth_(bv ? bv->workWidth() : 100),
76 background_color_(LColor::background),
82 void LyXText::init(BufferView * bv)
86 maxwidth_ = bv->workWidth();
91 pit_type const end = paragraphs().size();
92 for (pit_type pit = 0; pit != end; ++pit)
93 pars_[pit].rows().clear();
95 current_font = getFont(pars_[0], 0);
100 bool LyXText::isMainText() const
102 return &bv()->buffer()->text() == this;
106 //takes screen x,y coordinates
107 InsetBase * LyXText::checkInsetHit(int x, int y) const
109 pit_type pit = getPitNearY(y);
110 BOOST_ASSERT(pit != -1);
112 Paragraph const & par = pars_[pit];
114 lyxerr << "checkInsetHit: x: " << x << " y: " << y << endl;
115 lyxerr << " pit: " << pit << endl;
116 InsetList::const_iterator iit = par.insetlist.begin();
117 InsetList::const_iterator iend = par.insetlist.end();
118 for (; iit != iend; ++iit) {
119 InsetBase * inset = iit->inset;
121 lyxerr << "examining inset " << inset << endl;
122 if (theCoords.insets_.has(inset))
124 << " xo: " << inset->xo() << "..."
125 << inset->xo() + inset->width()
126 << " yo: " << inset->yo() - inset->ascent()
128 << inset->yo() + inset->descent() << endl;
130 lyxerr << " inset has no cached position" << endl;
132 if (inset->covers(x, y)) {
133 lyxerr << "Hit inset: " << inset << endl;
137 lyxerr << "No inset hit. " << endl;
143 // Gets the fully instantiated font at a given position in a paragraph
144 // Basically the same routine as Paragraph::getFont() in paragraph.C.
145 // The difference is that this one is used for displaying, and thus we
146 // are allowed to make cosmetic improvements. For instance make footnotes
148 LyXFont LyXText::getFont(Paragraph const & par, pos_type const pos) const
150 BOOST_ASSERT(pos >= 0);
152 LyXLayout_ptr const & layout = par.layout();
156 BufferParams const & params = bv()->buffer()->params();
157 pos_type const body_pos = par.beginOfBody();
159 // We specialize the 95% common case:
160 if (!par.getDepth()) {
161 LyXFont f = par.getFontSettings(params, pos);
164 if (layout->labeltype == LABEL_MANUAL && pos < body_pos)
165 return f.realize(layout->reslabelfont);
167 return f.realize(layout->resfont);
170 // The uncommon case need not be optimized as much
173 layoutfont = layout->labelfont;
175 layoutfont = layout->font;
177 LyXFont font = par.getFontSettings(params, pos);
178 font.realize(layoutfont);
183 // Realize with the fonts of lesser depth.
184 font.realize(defaultfont_);
190 LyXFont LyXText::getLayoutFont(pit_type const pit) const
192 LyXLayout_ptr const & layout = pars_[pit].layout();
194 if (!pars_[pit].getDepth())
195 return layout->resfont;
197 LyXFont font = layout->font;
198 // Realize with the fonts of lesser depth.
199 //font.realize(outerFont(pit, paragraphs()));
200 font.realize(defaultfont_);
206 LyXFont LyXText::getLabelFont(Paragraph const & par) const
208 LyXLayout_ptr const & layout = par.layout();
211 return layout->reslabelfont;
213 LyXFont font = layout->labelfont;
214 // Realize with the fonts of lesser depth.
215 font.realize(defaultfont_);
221 void LyXText::setCharFont(pit_type pit, pos_type pos, LyXFont const & fnt)
224 LyXLayout_ptr const & layout = pars_[pit].layout();
226 // Get concrete layout font to reduce against
229 if (pos < pars_[pit].beginOfBody())
230 layoutfont = layout->labelfont;
232 layoutfont = layout->font;
234 // Realize against environment font information
235 if (pars_[pit].getDepth()) {
237 while (!layoutfont.resolved() &&
238 tp != pit_type(paragraphs().size()) &&
239 pars_[tp].getDepth()) {
240 tp = outerHook(tp, paragraphs());
241 if (tp != pit_type(paragraphs().size()))
242 layoutfont.realize(pars_[tp].layout()->font);
246 layoutfont.realize(defaultfont_);
248 // Now, reduce font against full layout font
249 font.reduce(layoutfont);
251 pars_[pit].setFont(pos, font);
256 // Asger is not sure we want to do this...
257 void LyXText::makeFontEntriesLayoutSpecific(BufferParams const & params,
260 LyXLayout_ptr const & layout = par.layout();
261 pos_type const psize = par.size();
264 for (pos_type pos = 0; pos < psize; ++pos) {
265 if (pos < par.beginOfBody())
266 layoutfont = layout->labelfont;
268 layoutfont = layout->font;
270 LyXFont tmpfont = par.getFontSettings(params, pos);
271 tmpfont.reduce(layoutfont);
272 par.setFont(pos, tmpfont);
277 // return past-the-last paragraph influenced by a layout change on pit
278 pit_type LyXText::undoSpan(pit_type pit)
280 pit_type end = paragraphs().size();
281 pit_type nextpit = pit + 1;
284 //because of parindents
285 if (!pars_[pit].getDepth())
286 return boost::next(nextpit);
287 //because of depth constrains
288 for (; nextpit != end; ++pit, ++nextpit) {
289 if (!pars_[pit].getDepth())
296 pit_type LyXText::setLayout(pit_type start, pit_type end, string const & layout)
298 BOOST_ASSERT(start != end);
299 pit_type undopit = undoSpan(end - 1);
300 recUndo(start, undopit - 1);
302 BufferParams const & bufparams = bv()->buffer()->params();
303 LyXLayout_ptr const & lyxlayout = bufparams.getLyXTextClass()[layout];
305 for (pit_type pit = start; pit != end; ++pit) {
306 pars_[pit].applyLayout(lyxlayout);
307 makeFontEntriesLayoutSpecific(bufparams, pars_[pit]);
308 if (lyxlayout->margintype == MARGIN_MANUAL)
309 pars_[pit].setLabelWidthString(lyxlayout->labelstring());
316 // set layout over selection and make a total rebreak of those paragraphs
317 void LyXText::setLayout(LCursor & cur, string const & layout)
319 BOOST_ASSERT(this == cur.text());
320 // special handling of new environment insets
321 BufferView & bv = cur.bv();
322 BufferParams const & params = bv.buffer()->params();
323 LyXLayout_ptr const & lyxlayout = params.getLyXTextClass()[layout];
324 if (lyxlayout->is_environment) {
325 // move everything in a new environment inset
326 lyxerr[Debug::DEBUG] << "setting layout " << layout << endl;
327 bv.owner()->dispatch(FuncRequest(LFUN_HOME));
328 bv.owner()->dispatch(FuncRequest(LFUN_ENDSEL));
329 bv.owner()->dispatch(FuncRequest(LFUN_CUT));
330 InsetBase * inset = new InsetEnvironment(params, layout);
331 insertInset(cur, inset);
332 //inset->edit(cur, true);
333 //bv.owner()->dispatch(FuncRequest(LFUN_PASTE));
337 pit_type start = cur.selBegin().pit();
338 pit_type end = cur.selEnd().pit() + 1;
339 setLayout(start, end, layout);
347 bool changeDepthAllowed(LyXText::DEPTH_CHANGE type,
348 Paragraph const & par, int max_depth)
350 if (par.layout()->labeltype == LABEL_BIBLIO)
352 int const depth = par.params().depth();
353 if (type == LyXText::INC_DEPTH && depth < max_depth)
355 if (type == LyXText::DEC_DEPTH && depth > 0)
364 bool LyXText::changeDepthAllowed(LCursor & cur, DEPTH_CHANGE type) const
366 BOOST_ASSERT(this == cur.text());
367 pit_type const beg = cur.selBegin().pit();
368 pit_type const end = cur.selEnd().pit() + 1;
369 int max_depth = (beg != 0 ? pars_[beg - 1].getMaxDepthAfter() : 0);
371 for (pit_type pit = beg; pit != end; ++pit) {
372 if (::changeDepthAllowed(type, pars_[pit], max_depth))
374 max_depth = pars_[pit].getMaxDepthAfter();
380 void LyXText::changeDepth(LCursor & cur, DEPTH_CHANGE type)
382 BOOST_ASSERT(this == cur.text());
383 pit_type const beg = cur.selBegin().pit();
384 pit_type const end = cur.selEnd().pit() + 1;
385 recordUndoSelection(cur);
386 int max_depth = (beg != 0 ? pars_[beg - 1].getMaxDepthAfter() : 0);
388 for (pit_type pit = beg; pit != end; ++pit) {
389 Paragraph & par = pars_[pit];
390 if (::changeDepthAllowed(type, par, max_depth)) {
391 int const depth = par.params().depth();
392 if (type == INC_DEPTH)
393 par.params().depth(depth + 1);
395 par.params().depth(depth - 1);
397 max_depth = par.getMaxDepthAfter();
399 // this handles the counter labels, and also fixes up
400 // depth values for follow-on (child) paragraphs
405 // set font over selection
406 void LyXText::setFont(LCursor & cur, LyXFont const & font, bool toggleall)
408 BOOST_ASSERT(this == cur.text());
409 // if there is no selection just set the current_font
410 if (!cur.selection()) {
411 // Determine basis font
413 pit_type pit = cur.pit();
414 if (cur.pos() < pars_[pit].beginOfBody())
415 layoutfont = getLabelFont(pars_[pit]);
417 layoutfont = getLayoutFont(pit);
419 // Update current font
420 real_current_font.update(font,
421 cur.buffer().params().language,
424 // Reduce to implicit settings
425 current_font = real_current_font;
426 current_font.reduce(layoutfont);
427 // And resolve it completely
428 real_current_font.realize(layoutfont);
433 // Ok, we have a selection.
434 recordUndoSelection(cur);
436 DocIterator dit = cur.selectionBegin();
437 DocIterator ditend = cur.selectionEnd();
439 BufferParams const & params = cur.buffer().params();
441 // Don't use forwardChar here as ditend might have
442 // pos() == lastpos() and forwardChar would miss it.
443 for (; dit != ditend; dit.forwardPos()) {
444 if (dit.pos() != dit.lastpos()) {
445 LyXFont f = getFont(dit.paragraph(), dit.pos());
446 f.update(font, params.language, toggleall);
447 setCharFont(dit.pit(), dit.pos(), f);
453 // the cursor set functions have a special mechanism. When they
454 // realize you left an empty paragraph, they will delete it.
456 void LyXText::cursorHome(LCursor & cur)
458 BOOST_ASSERT(this == cur.text());
459 setCursor(cur, cur.pit(), cur.textRow().pos());
463 void LyXText::cursorEnd(LCursor & cur)
465 BOOST_ASSERT(this == cur.text());
466 // if not on the last row of the par, put the cursor before
468 // FIXME: does this final space exist?
469 pos_type const end = cur.textRow().endpos();
470 setCursor(cur, cur.pit(), end == cur.lastpos() ? end : end - 1);
474 void LyXText::cursorTop(LCursor & cur)
476 BOOST_ASSERT(this == cur.text());
477 setCursor(cur, 0, 0);
481 void LyXText::cursorBottom(LCursor & cur)
483 BOOST_ASSERT(this == cur.text());
484 setCursor(cur, cur.lastpit(), boost::prior(paragraphs().end())->size());
488 void LyXText::toggleFree(LCursor & cur, LyXFont const & font, bool toggleall)
490 BOOST_ASSERT(this == cur.text());
491 // If the mask is completely neutral, tell user
492 if (font == LyXFont(LyXFont::ALL_IGNORE)) {
493 // Could only happen with user style
494 cur.message(_("No font change defined. "
495 "Use Character under the Layout menu to define font change."));
499 // Try implicit word selection
500 // If there is a change in the language the implicit word selection
502 CursorSlice resetCursor = cur.top();
503 bool implicitSelection =
504 font.language() == ignore_language
505 && font.number() == LyXFont::IGNORE
506 && selectWordWhenUnderCursor(cur, lyx::WHOLE_WORD_STRICT);
509 setFont(cur, font, toggleall);
511 // Implicit selections are cleared afterwards
512 // and cursor is set to the original position.
513 if (implicitSelection) {
514 cur.clearSelection();
515 cur.top() = resetCursor;
521 string LyXText::getStringToIndex(LCursor & cur)
523 BOOST_ASSERT(this == cur.text());
524 // Try implicit word selection
525 // If there is a change in the language the implicit word selection
527 CursorSlice const reset_cursor = cur.top();
528 bool const implicitSelection =
529 selectWordWhenUnderCursor(cur, lyx::PREVIOUS_WORD);
532 if (!cur.selection())
533 cur.message(_("Nothing to index!"));
534 else if (cur.selBegin().pit() != cur.selEnd().pit())
535 cur.message(_("Cannot index more than one paragraph!"));
537 idxstring = cur.selectionAsString(false);
539 // Reset cursors to their original position.
540 cur.top() = reset_cursor;
543 // Clear the implicit selection.
544 if (implicitSelection)
545 cur.clearSelection();
551 void LyXText::setParagraph(LCursor & cur,
552 Spacing const & spacing, LyXAlignment align,
553 string const & labelwidthstring, bool noindent)
555 BOOST_ASSERT(cur.text());
556 // make sure that the depth behind the selection are restored, too
557 pit_type undopit = undoSpan(cur.selEnd().pit());
558 recUndo(cur.selBegin().pit(), undopit - 1);
560 for (pit_type pit = cur.selBegin().pit(), end = cur.selEnd().pit();
562 Paragraph & par = pars_[pit];
563 ParagraphParameters & params = par.params();
564 params.spacing(spacing);
566 // does the layout allow the new alignment?
567 LyXLayout_ptr const & layout = par.layout();
569 if (align == LYX_ALIGN_LAYOUT)
570 align = layout->align;
571 if (align & layout->alignpossible) {
572 if (align == layout->align)
573 params.align(LYX_ALIGN_LAYOUT);
577 par.setLabelWidthString(labelwidthstring);
578 params.noindent(noindent);
583 string expandLabel(LyXTextClass const & textclass,
584 LyXLayout_ptr const & layout, bool appendix)
586 string fmt = appendix ?
587 layout->labelstring_appendix() : layout->labelstring();
589 // handle 'inherited level parts' in 'fmt',
590 // i.e. the stuff between '@' in '@Section@.\arabic{subsection}'
591 size_t const i = fmt.find('@', 0);
592 if (i != string::npos) {
593 size_t const j = fmt.find('@', i + 1);
594 if (j != string::npos) {
595 string parent(fmt, i + 1, j - i - 1);
596 string label = expandLabel(textclass, textclass[parent], appendix);
597 fmt = string(fmt, 0, i) + label + string(fmt, j + 1, string::npos);
601 return textclass.counters().counterLabel(fmt);
607 void incrementItemDepth(ParagraphList & pars, pit_type pit, pit_type first_pit)
609 int const cur_labeltype = pars[pit].layout()->labeltype;
611 if (cur_labeltype != LABEL_ENUMERATE && cur_labeltype != LABEL_ITEMIZE)
614 int const cur_depth = pars[pit].getDepth();
616 pit_type prev_pit = pit - 1;
618 int const prev_depth = pars[prev_pit].getDepth();
619 int const prev_labeltype = pars[prev_pit].layout()->labeltype;
620 if (prev_depth == 0 && cur_depth > 0) {
621 if (prev_labeltype == cur_labeltype) {
622 pars[pit].itemdepth = pars[prev_pit].itemdepth + 1;
625 } else if (prev_depth < cur_depth) {
626 if (prev_labeltype == cur_labeltype) {
627 pars[pit].itemdepth = pars[prev_pit].itemdepth + 1;
630 } else if (prev_depth == cur_depth) {
631 if (prev_labeltype == cur_labeltype) {
632 pars[pit].itemdepth = pars[prev_pit].itemdepth;
636 if (prev_pit == first_pit)
644 void resetEnumCounterIfNeeded(ParagraphList & pars, pit_type pit,
645 pit_type firstpit, Counters & counters)
650 int const cur_depth = pars[pit].getDepth();
651 pit_type prev_pit = pit - 1;
653 int const prev_depth = pars[prev_pit].getDepth();
654 int const prev_labeltype = pars[prev_pit].layout()->labeltype;
655 if (prev_depth <= cur_depth) {
656 if (prev_labeltype != LABEL_ENUMERATE) {
657 switch (pars[pit].itemdepth) {
659 counters.reset("enumi");
661 counters.reset("enumii");
663 counters.reset("enumiii");
665 counters.reset("enumiv");
671 if (prev_pit == firstpit)
681 // set the counter of a paragraph. This includes the labels
682 void LyXText::setCounter(Buffer const & buf, pit_type pit)
684 Paragraph & par = pars_[pit];
685 BufferParams const & bufparams = buf.params();
686 LyXTextClass const & textclass = bufparams.getLyXTextClass();
687 LyXLayout_ptr const & layout = par.layout();
688 Counters & counters = textclass.counters();
694 par.params().appendix(par.params().startOfAppendix());
696 par.params().appendix(pars_[pit - 1].params().appendix());
697 if (!par.params().appendix() &&
698 par.params().startOfAppendix()) {
699 par.params().appendix(true);
700 textclass.counters().reset();
703 // Maybe we have to increment the item depth.
704 incrementItemDepth(pars_, pit, 0);
707 // erase what was there before
708 par.params().labelString(string());
710 if (layout->margintype == MARGIN_MANUAL) {
711 if (par.params().labelWidthString().empty())
712 par.setLabelWidthString(layout->labelstring());
714 par.setLabelWidthString(string());
717 // is it a layout that has an automatic label?
718 if (layout->labeltype == LABEL_COUNTER) {
719 BufferParams const & bufparams = buf.params();
720 LyXTextClass const & textclass = bufparams.getLyXTextClass();
721 counters.step(layout->counter);
722 string label = expandLabel(textclass, layout, par.params().appendix());
723 par.params().labelString(label);
724 } else if (layout->labeltype == LABEL_ITEMIZE) {
725 // At some point of time we should do something more
726 // clever here, like:
727 // par.params().labelString(
728 // bufparams.user_defined_bullet(par.itemdepth).getText());
729 // for now, use a simple hardcoded label
731 switch (par.itemdepth) {
746 par.params().labelString(itemlabel);
747 } else if (layout->labeltype == LABEL_ENUMERATE) {
748 // Maybe we have to reset the enumeration counter.
749 resetEnumCounterIfNeeded(pars_, pit, 0, counters);
752 // Yes I know this is a really, really! bad solution
754 string enumcounter = "enum";
756 switch (par.itemdepth) {
768 // not a valid enumdepth...
772 counters.step(enumcounter);
774 par.params().labelString(counters.enumLabel(enumcounter));
775 } else if (layout->labeltype == LABEL_BIBLIO) {// ale970302
776 counters.step("bibitem");
777 int number = counters.value("bibitem");
779 par.bibitem()->setCounter(number);
780 par.params().labelString(layout->labelstring());
782 // In biblio should't be following counters but...
784 string s = buf.B_(layout->labelstring());
787 if (layout->labeltype == LABEL_SENSITIVE) {
788 pit_type end = paragraphs().size();
789 pit_type tmppit = pit;
792 while (tmppit != end) {
793 in = pars_[tmppit].inInset();
794 if (in->lyxCode() == InsetBase::FLOAT_CODE ||
795 in->lyxCode() == InsetBase::WRAP_CODE) {
800 #warning replace this code by something that works
801 // This code does not work because we have currently no way to move up
802 // in the hierarchy of insets (JMarc 16/08/2004)
805 /* I think this code is supposed to be useful when one has a caption
806 * in a minipage in a figure inset. We need to go up to be able to see
807 * that the caption should use "Figure" as label
810 Paragraph const * owner = &ownerPar(buf, in);
812 for ( ; tmppit != end; ++tmppit)
813 if (&pars_[tmppit] == owner)
824 if (in->lyxCode() == InsetBase::FLOAT_CODE)
825 type = static_cast<InsetFloat*>(in)->params().type;
826 else if (in->lyxCode() == InsetBase::WRAP_CODE)
827 type = static_cast<InsetWrap*>(in)->params().type;
831 Floating const & fl = textclass.floats().getType(type);
833 counters.step(fl.type());
835 // Doesn't work... yet.
836 s = bformat(_("%1$s #:"), buf.B_(fl.name()));
838 // par->SetLayout(0);
839 // s = layout->labelstring;
840 s = _("Senseless: ");
843 par.params().labelString(s);
849 // Updates all counters.
850 void LyXText::updateCounters()
853 bv()->buffer()->params().getLyXTextClass().counters().reset();
855 bool update_pos = false;
857 pit_type end = paragraphs().size();
858 for (pit_type pit = 0; pit != end; ++pit) {
859 string const oldLabel = pars_[pit].params().labelString();
862 maxdepth = pars_[pit - 1].getMaxDepthAfter();
864 if (pars_[pit].params().depth() > maxdepth)
865 pars_[pit].params().depth(maxdepth);
867 // setCounter can potentially change the labelString.
868 setCounter(*bv()->buffer(), pit);
869 string const & newLabel = pars_[pit].params().labelString();
870 if (oldLabel != newLabel) {
871 //lyxerr[Debug::DEBUG] << "changing labels: old: " << oldLabel << " new: "
872 // << newLabel << endl;
879 // this really should just insert the inset and not move the cursor.
880 void LyXText::insertInset(LCursor & cur, InsetBase * inset)
882 BOOST_ASSERT(this == cur.text());
884 cur.paragraph().insertInset(cur.pos(), inset);
888 // needed to insert the selection
889 void LyXText::insertStringAsLines(LCursor & cur, string const & str)
891 pit_type pit = cur.pit();
892 pos_type pos = cur.pos();
895 // only to be sure, should not be neccessary
896 cur.clearSelection();
897 cur.buffer().insertStringAsLines(pars_, pit, pos, current_font, str,
901 setCursor(cur, cur.pit(), pos);
906 // turn double CR to single CR, others are converted into one
907 // blank. Then insertStringAsLines is called
908 void LyXText::insertStringAsParagraphs(LCursor & cur, string const & str)
910 string linestr = str;
911 bool newline_inserted = false;
913 for (string::size_type i = 0, siz = linestr.size(); i < siz; ++i) {
914 if (linestr[i] == '\n') {
915 if (newline_inserted) {
916 // we know that \r will be ignored by
917 // insertStringAsLines. Of course, it is a dirty
918 // trick, but it works...
919 linestr[i - 1] = '\r';
923 newline_inserted = true;
925 } else if (IsPrintable(linestr[i])) {
926 newline_inserted = false;
929 insertStringAsLines(cur, linestr);
933 bool LyXText::setCursor(LCursor & cur, pit_type par, pos_type pos,
934 bool setfont, bool boundary)
937 setCursorIntern(cur, par, pos, setfont, boundary);
938 return deleteEmptyParagraphMechanism(cur, old);
942 void LyXText::setCursor(CursorSlice & cur, pit_type par,
943 pos_type pos, bool boundary)
945 BOOST_ASSERT(par != int(paragraphs().size()));
948 cur.boundary() = boundary;
950 // now some strict checking
951 Paragraph & para = getPar(par);
953 // None of these should happen, but we're scaredy-cats
955 lyxerr << "dont like -1" << endl;
959 if (pos > para.size()) {
960 lyxerr << "dont like 1, pos: " << pos
961 << " size: " << para.size()
962 << " par: " << par << endl;
968 void LyXText::setCursorIntern(LCursor & cur,
969 pit_type par, pos_type pos, bool setfont, bool boundary)
971 setCursor(cur.top(), par, pos, boundary);
978 void LyXText::setCurrentFont(LCursor & cur)
980 BOOST_ASSERT(this == cur.text());
981 pos_type pos = cur.pos();
982 Paragraph & par = cur.paragraph();
984 if (cur.boundary() && pos > 0)
988 if (pos == cur.lastpos())
990 else // potentional bug... BUG (Lgb)
991 if (par.isSeparator(pos)) {
992 if (pos > cur.textRow().pos() &&
993 bidi.level(pos) % 2 ==
994 bidi.level(pos - 1) % 2)
996 else if (pos + 1 < cur.lastpos())
1001 BufferParams const & bufparams = cur.buffer().params();
1002 current_font = par.getFontSettings(bufparams, pos);
1003 real_current_font = getFont(par, pos);
1005 if (cur.pos() == cur.lastpos()
1006 && bidi.isBoundary(cur.buffer(), par, cur.pos())
1007 && !cur.boundary()) {
1008 Language const * lang = par.getParLanguage(bufparams);
1009 current_font.setLanguage(lang);
1010 current_font.setNumber(LyXFont::OFF);
1011 real_current_font.setLanguage(lang);
1012 real_current_font.setNumber(LyXFont::OFF);
1017 // x is an absolute screen coord
1018 // returns the column near the specified x-coordinate of the row
1019 // x is set to the real beginning of this column
1020 pos_type LyXText::getColumnNearX(pit_type const pit,
1021 Row const & row, int & x, bool & boundary) const
1023 int const xo = theCoords.get(this, pit).x_;
1025 RowMetrics const r = computeRowMetrics(pit, row);
1026 Paragraph const & par = pars_[pit];
1028 pos_type vc = row.pos();
1029 pos_type end = row.endpos();
1031 LyXLayout_ptr const & layout = par.layout();
1033 bool left_side = false;
1035 pos_type body_pos = par.beginOfBody();
1038 double last_tmpx = tmpx;
1041 (body_pos > end || !par.isLineSeparator(body_pos - 1)))
1044 // check for empty row
1050 while (vc < end && tmpx <= x) {
1051 c = bidi.vis2log(vc);
1053 if (body_pos > 0 && c == body_pos - 1) {
1054 tmpx += r.label_hfill +
1055 font_metrics::width(layout->labelsep, getLabelFont(par));
1056 if (par.isLineSeparator(body_pos - 1))
1057 tmpx -= singleWidth(par, body_pos - 1);
1060 if (hfillExpansion(par, row, c)) {
1061 tmpx += singleWidth(par, c);
1065 tmpx += r.label_hfill;
1066 } else if (par.isSeparator(c)) {
1067 tmpx += singleWidth(par, c);
1069 tmpx += r.separator;
1071 tmpx += singleWidth(par, c);
1076 if ((tmpx + last_tmpx) / 2 > x) {
1081 BOOST_ASSERT(vc <= end); // This shouldn't happen.
1084 // This (rtl_support test) is not needed, but gives
1085 // some speedup if rtl_support == false
1086 bool const lastrow = lyxrc.rtl_support && row.endpos() == par.size();
1088 // If lastrow is false, we don't need to compute
1089 // the value of rtl.
1090 bool const rtl = lastrow ? isRTL(par) : false;
1092 ((rtl && left_side && vc == row.pos() && x < tmpx - 5) ||
1093 (!rtl && !left_side && vc == end && x > tmpx + 5)))
1095 else if (vc == row.pos()) {
1096 c = bidi.vis2log(vc);
1097 if (bidi.level(c) % 2 == 1)
1100 c = bidi.vis2log(vc - 1);
1101 bool const rtl = (bidi.level(c) % 2 == 1);
1102 if (left_side == rtl) {
1104 boundary = bidi.isBoundary(*bv()->buffer(), par, c);
1108 if (row.pos() < end && c >= end && par.isNewline(end - 1)) {
1109 if (bidi.level(end -1) % 2 == 0)
1110 tmpx -= singleWidth(par, end - 1);
1112 tmpx += singleWidth(par, end - 1);
1117 return c - row.pos();
1121 // y is screen coordinate
1122 pit_type LyXText::getPitNearY(int y) const
1124 BOOST_ASSERT(!paragraphs().empty());
1125 BOOST_ASSERT(theCoords.pars_.find(this) != theCoords.pars_.end());
1126 CoordCache::InnerParPosCache const & cc = theCoords.pars_[this];
1127 lyxerr << "LyXText::getPitNearY: y: " << y << " cache size: "
1128 << cc.size() << endl;
1130 // look for highest numbered paragraph with y coordinate less than given y
1133 CoordCache::InnerParPosCache::const_iterator it = cc.begin();
1134 CoordCache::InnerParPosCache::const_iterator et = cc.end();
1135 for (; it != et; ++it) {
1136 lyxerr << " examining: pit: " << it->first << " y: "
1137 << it->second.y_ << endl;
1138 if (it->first >= pit && int(it->second.y_) - int(pars_[it->first].ascent()) <= y) {
1144 lyxerr << " found best y: " << yy << " for pit: " << pit << endl;
1149 Row const & LyXText::getRowNearY(int y, pit_type pit) const
1151 Paragraph const & par = pars_[pit];
1152 int yy = theCoords.get(this, pit).y_ - par.ascent();
1153 BOOST_ASSERT(!par.rows().empty());
1154 RowList::const_iterator rit = par.rows().begin();
1155 RowList::const_iterator const rlast = boost::prior(par.rows().end());
1156 for (; rit != rlast; yy += rit->height(), ++rit)
1157 if (yy + rit->height() > y)
1162 // x,y are absolute screen coordinates
1163 // sets cursor recursively descending into nested editable insets
1164 InsetBase * LyXText::editXY(LCursor & cur, int x, int y) const
1166 pit_type pit = getPitNearY(y);
1167 BOOST_ASSERT(pit != -1);
1168 Row const & row = getRowNearY(y, pit);
1171 int xx = x; // is modified by getColumnNearX
1172 pos_type const pos = row.pos() + getColumnNearX(pit, row, xx, bound);
1175 cur.boundary() = bound;
1178 // try to descend into nested insets
1179 InsetBase * inset = checkInsetHit(x, y);
1180 lyxerr << "inset " << inset << " hit at x: " << x << " y: " << y << endl;
1182 //either we deconst editXY or better we move current_font
1183 //and real_current_font to LCursor
1184 const_cast<LyXText *>(this)->setCurrentFont(cur);
1188 // This should be just before or just behind the
1189 // cursor position set above.
1190 BOOST_ASSERT((pos != 0 && inset == pars_[pit].getInset(pos - 1))
1191 || inset == pars_[pit].getInset(pos));
1192 // Make sure the cursor points to the position before
1194 if (inset == pars_[pit].getInset(pos - 1))
1196 inset = inset->editXY(cur, x, y);
1197 if (cur.top().text() == this)
1198 const_cast<LyXText *>(this)->setCurrentFont(cur);
1203 bool LyXText::checkAndActivateInset(LCursor & cur, bool front)
1205 if (cur.selection())
1207 if (cur.pos() == cur.lastpos())
1209 InsetBase * inset = cur.nextInset();
1210 if (!isHighlyEditableInset(inset))
1212 inset->edit(cur, front);
1217 void LyXText::cursorLeft(LCursor & cur)
1219 if (cur.pos() != 0) {
1220 bool boundary = cur.boundary();
1221 setCursor(cur, cur.pit(), cur.pos() - 1, true, false);
1222 if (!checkAndActivateInset(cur, false)) {
1223 if (false && !boundary &&
1224 bidi.isBoundary(cur.buffer(), cur.paragraph(), cur.pos() + 1))
1225 setCursor(cur, cur.pit(), cur.pos() + 1, true, true);
1230 if (cur.pit() != 0) {
1231 // steps into the paragraph above
1232 setCursor(cur, cur.pit() - 1, getPar(cur.pit() - 1).size());
1237 void LyXText::cursorRight(LCursor & cur)
1239 if (false && cur.boundary()) {
1240 setCursor(cur, cur.pit(), cur.pos(), true, false);
1244 if (cur.pos() != cur.lastpos()) {
1245 if (!checkAndActivateInset(cur, true)) {
1246 setCursor(cur, cur.pit(), cur.pos() + 1, true, false);
1247 if (false && bidi.isBoundary(cur.buffer(), cur.paragraph(),
1249 setCursor(cur, cur.pit(), cur.pos(), true, true);
1254 if (cur.pit() != cur.lastpit())
1255 setCursor(cur, cur.pit() + 1, 0);
1259 void LyXText::cursorUp(LCursor & cur)
1261 Paragraph const & par = cur.paragraph();
1262 int const row = par.pos2row(cur.pos());
1263 int const x = cur.targetX();
1265 if (!cur.selection()) {
1266 int const y = bv_funcs::getPos(cur).y_;
1267 editXY(cur, x, y - par.rows()[row].ascent() - 1);
1272 setCursor(cur, cur.pit(), x2pos(cur.pit(), row - 1, x));
1273 } else if (cur.pit() > 0) {
1275 setCursor(cur, cur.pit(), x2pos(cur.pit(), cur.paragraph().rows().size() - 1, x));
1283 void LyXText::cursorDown(LCursor & cur)
1287 Paragraph const & par = cur.paragraph();
1288 int const row = par.pos2row(cur.pos());
1289 int const x = cur.targetX();
1291 if (!cur.selection()) {
1292 int const y = bv_funcs::getPos(cur).y_;
1293 editXY(cur, x, y + par.rows()[row].descent() + 1);
1297 if (row + 1 < int(par.rows().size())) {
1298 setCursor(cur, cur.pit(), x2pos(cur.pit(), row + 1, x));
1299 } else if (cur.pit() + 1 < int(paragraphs().size())) {
1301 setCursor(cur, cur.pit(), x2pos(cur.pit(), 0, x));
1308 void LyXText::cursorUpParagraph(LCursor & cur)
1311 setCursor(cur, cur.pit(), 0);
1312 else if (cur.pit() != 0)
1313 setCursor(cur, cur.pit() - 1, 0);
1317 void LyXText::cursorDownParagraph(LCursor & cur)
1319 if (cur.pit() != cur.lastpit())
1320 setCursor(cur, cur.pit() + 1, 0);
1322 setCursor(cur, cur.pit(), cur.lastpos());
1326 // fix the cursor `cur' after a characters has been deleted at `where'
1327 // position. Called by deleteEmptyParagraphMechanism
1328 void LyXText::fixCursorAfterDelete(CursorSlice & cur, CursorSlice const & where)
1330 // do notheing if cursor is not in the paragraph where the
1331 // deletion occured,
1332 if (cur.pit() != where.pit())
1335 // if cursor position is after the deletion place update it
1336 if (cur.pos() > where.pos())
1339 // check also if we don't want to set the cursor on a spot behind the
1340 // pagragraph because we erased the last character.
1341 if (cur.pos() > cur.lastpos())
1342 cur.pos() = cur.lastpos();
1346 bool LyXText::deleteEmptyParagraphMechanism(LCursor & cur, LCursor const & old)
1348 BOOST_ASSERT(cur.size() == old.size());
1349 // Would be wrong to delete anything if we have a selection.
1350 if (cur.selection())
1353 //lyxerr[Debug::DEBUG] << "DEPM: cur:\n" << cur << "old:\n" << old << endl;
1354 Paragraph const & oldpar = pars_[old.pit()];
1356 // We allow all kinds of "mumbo-jumbo" when freespacing.
1357 if (oldpar.isFreeSpacing())
1360 /* Ok I'll put some comments here about what is missing.
1361 I have fixed BackSpace (and thus Delete) to not delete
1362 double-spaces automagically. I have also changed Cut,
1363 Copy and Paste to hopefully do some sensible things.
1364 There are still some small problems that can lead to
1365 double spaces stored in the document file or space at
1366 the beginning of paragraphs(). This happens if you have
1367 the cursor between to spaces and then save. Or if you
1368 cut and paste and the selection have a space at the
1369 beginning and then save right after the paste. I am
1370 sure none of these are very hard to fix, but I will
1371 put out 1.1.4pre2 with FIX_DOUBLE_SPACE defined so
1372 that I can get some feedback. (Lgb)
1375 // If old.pos() == 0 and old.pos()(1) == LineSeparator
1376 // delete the LineSeparator.
1379 // If old.pos() == 1 and old.pos()(0) == LineSeparator
1380 // delete the LineSeparator.
1383 // If the chars around the old cursor were spaces, delete one of them.
1384 if (old.pit() != cur.pit() || old.pos() != cur.pos()) {
1386 // Only if the cursor has really moved.
1388 && old.pos() < oldpar.size()
1389 && oldpar.isLineSeparator(old.pos())
1390 && oldpar.isLineSeparator(old.pos() - 1)) {
1391 pars_[old.pit()].erase(old.pos() - 1);
1392 #ifdef WITH_WARNINGS
1393 #warning This will not work anymore when we have multiple views of the same buffer
1394 // In this case, we will have to correct also the cursors held by
1395 // other bufferviews. It will probably be easier to do that in a more
1396 // automated way in CursorSlice code. (JMarc 26/09/2001)
1398 // correct all cursor parts
1399 fixCursorAfterDelete(cur.top(), old.top());
1400 #ifdef WITH_WARNINGS
1401 #warning DEPM, look here
1403 //fixCursorAfterDelete(cur.anchor(), old.top());
1408 // only do our magic if we changed paragraph
1409 if (old.pit() == cur.pit())
1412 // don't delete anything if this is the ONLY paragraph!
1413 if (pars_.size() == 1)
1416 // Do not delete empty paragraphs with keepempty set.
1417 if (oldpar.allowEmpty())
1420 // record if we have deleted a paragraph
1421 // we can't possibly have deleted a paragraph before this point
1422 bool deleted = false;
1424 if (oldpar.empty() || (oldpar.size() == 1 && oldpar.isLineSeparator(0))) {
1425 // ok, we will delete something
1428 bool selection_position_was_oldcursor_position =
1429 cur.anchor().pit() == old.pit() && cur.anchor().pos() == old.pos();
1431 // This is a bit of a overkill. We change the old and the cur par
1432 // at max, certainly not everything in between...
1433 recUndo(old.pit(), cur.pit());
1436 pars_.erase(pars_.begin() + old.pit());
1438 // Update cursor par offset if necessary.
1439 // Some 'iterator registration' would be nice that takes care of
1440 // such events. Maybe even signal/slot?
1441 if (cur.pit() > old.pit())
1443 #ifdef WITH_WARNINGS
1444 #warning DEPM, look here
1446 // if (cur.anchor().pit() > old.pit())
1447 // --cur.anchor().pit();
1449 if (selection_position_was_oldcursor_position) {
1450 // correct selection
1458 if (pars_[old.pit()].stripLeadingSpaces())
1465 ParagraphList & LyXText::paragraphs() const
1467 return const_cast<ParagraphList &>(pars_);
1471 void LyXText::recUndo(pit_type first, pit_type last) const
1473 recordUndo(bv()->cursor(), Undo::ATOMIC, first, last);
1477 void LyXText::recUndo(pit_type par) const
1479 recordUndo(bv()->cursor(), Undo::ATOMIC, par, par);
1483 int defaultRowHeight()
1485 return int(font_metrics::maxHeight(LyXFont(LyXFont::ALL_SANE)) * 1.2);