]> git.lyx.org Git - lyx.git/blobdiff - src/DocIterator.cpp
prepare Qt 5.6 builds
[lyx.git] / src / DocIterator.cpp
index 6115bf287992a0f7760ee9095bf816b675c6abc9..a059ad18d2110b52fe88153b65ef4d5669ed288e 100644 (file)
@@ -27,6 +27,8 @@
 #include "insets/InsetTabular.h"
 
 #include "support/debug.h"
+#include "support/ExceptionMessage.h"
+#include "support/gettext.h"
 #include "support/lassert.h"
 #include "support/lstrings.h"
 
@@ -42,6 +44,7 @@ DocIterator::DocIterator()
        : boundary_(false), inset_(0), buffer_(0)
 {}
 
+
 // We could be able to get rid of this if only every BufferView were
 // associated to a buffer on construction.
 DocIterator::DocIterator(Buffer * buf)
@@ -72,10 +75,30 @@ DocIterator doc_iterator_end(const Buffer * buf0, const Inset * inset0)
 }
 
 
+DocIterator DocIterator::clone(Buffer * buffer) const
+{
+       LASSERT(buffer->isClone(), return DocIterator());
+       Inset * inset = &buffer->inset();
+       DocIterator dit(buffer);
+       size_t const n = slices_.size();
+       for (size_t i = 0 ; i != n; ++i) {
+               LBUFERR(inset);
+               dit.push_back(slices_[i]);
+               dit.top().inset_ = inset;
+               if (i + 1 != n)
+                       inset = dit.nextInset();
+       }
+       return dit;
+}
+
+
 bool DocIterator::inRegexped() const
 {
-       InsetMathHull * i = dynamic_cast<InsetMathHull *>(inset().asInsetMath());
-       return i && i->getType() == hullRegexp;
+       InsetMath * im = inset().asInsetMath();
+       if (!im) 
+               return false;
+       InsetMathHull * hull = im->asHullInset();
+       return hull && hull->getType() == hullRegexp;
 }
 
 
@@ -92,7 +115,8 @@ Inset * DocIterator::nextInset() const
        if (pos() == lastpos())
                return 0;
        if (pos() > lastpos()) {
-               LYXERR0("Should not happen, but it does. ");
+               LYXERR0("Should not happen, but it does: pos() = "
+                       << pos() << ", lastpos() = " << lastpos());
                return 0;
        }
        if (inMathed())
@@ -110,7 +134,7 @@ Inset * DocIterator::prevInset() const
                if (cell().empty())
                        // FIXME: this should not happen but it does.
                        // See bug 3189
-                       // http://bugzilla.lyx.org/show_bug.cgi?id=3189
+                       // http://www.lyx.org/trac/ticket/3189
                        return 0;
                else
                        return prevAtom().nucleus();
@@ -121,11 +145,11 @@ Inset * DocIterator::prevInset() const
 
 Inset * DocIterator::realInset() const
 {
-       LASSERT(inTexted(), /**/);
+       LASSERT(inTexted(), return 0);
        // if we are in a tabular, we need the cell
        if (inset().lyxCode() == TABULAR_CODE) {
-               InsetTabular & tabular = static_cast<InsetTabular&>(inset());
-               return tabular.cell(idx()).get();
+               InsetTabular * tabular = inset().asInsetTabular();
+               return tabular->cell(idx()).get();
        }
        return &inset();
 }
@@ -150,41 +174,64 @@ MathAtom & DocIterator::nextAtom() const
 
 Text * DocIterator::text() const
 {
-       LASSERT(!empty(), /**/);
+       LASSERT(!empty(), return 0);
        return top().text();
 }
 
 
 Paragraph & DocIterator::paragraph() const
 {
-       if (!inTexted())
+       if (!inTexted()) {
                LYXERR0(*this);
-       LASSERT(inTexted(), /**/);
+               LBUFERR(false);
+       }
        return top().paragraph();
 }
 
 
 Paragraph & DocIterator::innerParagraph() const
 {
-       LASSERT(!empty(), /**/);
+       LBUFERR(!empty());
        return innerTextSlice().paragraph();
 }
 
 
+FontSpan DocIterator::locateWord(word_location const loc) const
+{
+       FontSpan f = FontSpan();
+
+       if (!top().text()->empty()) {
+               f.first = pos();
+               top().paragraph().locateWord(f.first, f.last, loc);
+       }
+       return f;
+}
+
+       
 CursorSlice const & DocIterator::innerTextSlice() const
 {
-       LASSERT(!empty(), /**/);
+       LBUFERR(!empty());
        // go up until first non-0 text is hit
        // (innermost text is 0 in mathed)
        for (int i = depth() - 1; i >= 0; --i)
                if (slices_[i].text())
                        return slices_[i];
 
-       // This case is in principe not possible. We _must_
+       // This case is in principle not possible. We _must_
        // be inside a Text.
-       LASSERT(false, /**/);
-       static CursorSlice dummy;
-       return dummy;
+       LBUFERR(false);
+       // Squash warning
+       static const CursorSlice c;
+       return c;
+}
+
+
+DocIterator DocIterator::getInnerText() const
+{
+       DocIterator texted = *this;
+       while (!texted.inTexted()) 
+               texted.pop_back();
+       return texted;
 }
 
 
@@ -248,13 +295,8 @@ MathData & DocIterator::cell() const
 
 Text * DocIterator::innerText() const
 {
-       LASSERT(!empty(), /**/);
-       // go up until first non-0 text is hit
-       // (innermost text is 0 in mathed)
-       for (int i = depth() - 1; i >= 0; --i)
-               if (slices_[i].text())
-                       return slices_[i].text();
-       return 0;
+       LASSERT(!empty(), return 0);
+       return innerTextSlice().text();
 }
 
 
@@ -416,6 +458,28 @@ void DocIterator::backwardPos()
 }
 
 
+#if 0
+// works, but currently not needed
+void DocIterator::backwardInset()
+{
+       backwardPos();
+
+       while (!empty() && !nextInset()) {
+               if (inTexted()) {
+                       pos_type const lastp = lastpos();
+                       Paragraph const & par = paragraph();
+                       pos_type & pos = top().pos();
+                       while (pos > 0 && (pos == lastp || !par.isInset(pos)))
+                               --pos;
+                       if (pos > 0)
+                               break;
+               }
+               backwardPos();
+       }
+}
+#endif
+
+
 bool DocIterator::hasPart(DocIterator const & it) const
 {
        // it can't be a part if it is larger
@@ -427,6 +491,19 @@ bool DocIterator::hasPart(DocIterator const & it) const
 }
 
 
+bool DocIterator::allowSpellCheck() const
+{
+       /// spell check is disabled if the iterator position
+       /// is inside of an inset which disables the spell checker
+       size_t const n = depth();
+       for (size_t i = 0; i < n; ++i) {
+               if (!slices_[i].inset_->allowSpellCheck())
+                       return false;
+       }
+       return true;
+}
+
+
 void DocIterator::updateInsets(Inset * inset)
 {
        // this function re-creates the cache of inset pointers.
@@ -435,7 +512,7 @@ void DocIterator::updateInsets(Inset * inset)
        size_t const n = slices_.size();
        slices_.resize(0);
        for (size_t i = 0 ; i < n; ++i) {
-               LASSERT(inset, /**/);
+               LBUFERR(inset);
                push_back(dit[i]);
                top().inset_ = inset;
                if (i + 1 != n)
@@ -502,6 +579,41 @@ bool DocIterator::fixIfBroken()
 }
 
 
+void DocIterator::sanitize()
+{
+       // keep a copy of the slices
+       vector<CursorSlice> const sl = slices_;
+       slices_.clear();
+       if (buffer_)
+               inset_ = &buffer_->inset();
+       Inset * inset = inset_;
+       // re-add the slices one by one, and adjust the inset pointer.
+       for (size_t i = 0, n = sl.size(); i != n; ++i) {
+               if (inset == 0) {
+                       // FIXME
+                       LYXERR0(" Should not happen, but does e.g. after "
+                               "C-n C-l C-z S-C-z\n"
+                               << " or when a Buffer has been concurrently edited by two views"
+                               << '\n' << "dit: " << *this << '\n'
+                               << " lastpos: " << slices_[i].lastpos());
+                       fixIfBroken();
+                       break;
+               }
+               if (!inset->isActive()) {
+                       LYXERR0("Inset found on cursor stack is not active.");
+                       fixIfBroken();
+                       break;
+               }
+               push_back(sl[i]);
+               top().inset_ = inset;
+               if (fixIfBroken())
+                       break;
+               if (i + 1 != n)
+                       inset = nextInset();
+       }
+}
+
+
 int DocIterator::find(MathData const & cell) const
 {
        for (size_t l = 0; l != slices_.size(); ++l) {
@@ -569,29 +681,9 @@ StableDocIterator::StableDocIterator(DocIterator const & dit)
 
 DocIterator StableDocIterator::asDocIterator(Buffer * buf) const
 {
-       // this function re-creates the cache of inset pointers
-       //lyxerr << "converting:\n" << *this << endl;
-       Inset * inset = &buf->inset();
-       DocIterator dit = DocIterator(buf, inset);
-       for (size_t i = 0, n = data_.size(); i != n; ++i) {
-               if (inset == 0) {
-                       // FIXME
-                       LYXERR0(" Should not happen, but does e.g. after "
-                               "C-n C-l C-z S-C-z\n"
-                               << " or when a Buffer has been concurrently edited by two views"
-                               << '\n' << "dit: " << dit << '\n'
-                               << " lastpos: " << dit.lastpos());
-                       dit.fixIfBroken();
-                       break;
-               }
-               dit.push_back(data_[i]);
-               dit.top().inset_ = inset;
-               if (dit.fixIfBroken())
-                       break;
-               if (i + 1 != n)
-                       inset = dit.nextInset();
-       }
-       //lyxerr << "convert:\n" << *this << " to:\n" << dit << endl;
+       DocIterator dit(buf);
+       dit.slices_ = data_;
+       dit.sanitize();
        return dit;
 }
 
@@ -610,9 +702,4 @@ bool operator==(StableDocIterator const & dit1, StableDocIterator const & dit2)
 }
 
 
-bool isLetter(DocIterator const & dit)
-{
-       return dit.inTexted() && dit.paragraph().isLetter(dit.pos());
-}
-
 } // namespace lyx