This pair of patches is for
http://bugzilla.lyx.org/show_bug.cgi?id=1987
Test case:
1. New document
2. Change layout of empty paragraph to "Date"
3. Change document class to "Broadway"
=> Crash
I began by trying to move more code (in particular the
LFUN_TEXTCLASS_APPLY) into LFUN_BUFFERPARAMS_APPLY. I think this is
sound, and it fixes the bug (what happens is that LFUN_TEXTCLASS_APPLY
changes the layouts of the paragraphs when needed, but does not touch
the textclass itself; thus, if there is an update before
LFUN_BUFFERPARAMS_APPLY is run, the code that sets the layout bar
crashes).
The result is classcrash.diff below, which contains several contents
telling where more cleanup can/should be done.
Then it occurred to me that it is enough to just set the textclass in
LFUN_TEXTCLASS_APPLY.
JMarc
Index: src/ChangeLog
===
RCS file: /usr/local/lyx/cvsroot/lyx-devel/src/ChangeLog,v
retrieving revision 1.2280
diff -u -p -r1.2280 ChangeLog
--- src/ChangeLog 15 Sep 2005 16:00:27 - 1.2280
+++ src/ChangeLog 16 Sep 2005 10:54:38 -
@@ -1,3 +1,8 @@
+2005-09-16 Jean-Marc Lasgouttes <[EMAIL PROTECTED]>
+
+ * lyxfunc.C (dispatch): make LFUN_BUFFERPARAMS_APPLY perform the
+ task previously devoted to LFUN_TEXTCLASS_APPLY (bug 1987).
+
2005-09-14 Michael Gerz <[EMAIL PROTECTED]>
* lyxfunc.C: update display after LFUN_ALL_INSETS_TOGGLE
Index: src/lyxfunc.C
===
RCS file: /usr/local/lyx/cvsroot/lyx-devel/src/lyxfunc.C,v
retrieving revision 1.667
diff -u -p -r1.667 lyxfunc.C
--- src/lyxfunc.C 15 Sep 2005 16:00:29 - 1.667
+++ src/lyxfunc.C 16 Sep 2005 10:54:38 -
@@ -1454,14 +1454,16 @@ void LyXFunc::dispatch(FuncRequest const
}
case LFUN_BUFFERPARAMS_APPLY: {
- biblio::CiteEngine const engine =
-owner->buffer()->params().cite_engine;
+ // FIXME: we may want to move this code to
+ // buffer_funcs.C, especially if it inherits
+ // some code from ControlDocument. (JMarc)
+ Buffer & buf = *owner->buffer();
+ BufferParams old_params = buf.params();
istringstream ss(argument);
LyXLex lex(0,0);
lex.setStream(ss);
- int const unknown_tokens =
-owner->buffer()->readHeader(lex);
+ int const unknown_tokens = buf.readHeader(lex);
if (unknown_tokens != 0) {
lyxerr << "Warning in LFUN_BUFFERPARAMS_APPLY!\n"
@@ -1469,22 +1471,46 @@ void LyXFunc::dispatch(FuncRequest const
<< (unknown_tokens == 1 ? "" : "s")
<< endl;
}
- if (engine == owner->buffer()->params().cite_engine)
-break;
- LCursor & cur = view()->cursor();
- FuncRequest fr(LFUN_INSET_REFRESH);
+ BufferParams const & params = buf.params();
- InsetBase & inset = owner->buffer()->inset();
- InsetIterator it = inset_iterator_begin(inset);
- InsetIterator const end = inset_iterator_end(inset);
- for (; it != end; ++it)
-if (it->lyxCode() == InsetBase::CITE_CODE)
- it->dispatch(cur, fr);
+ if (old_params.cite_engine != params.cite_engine) {
+
+LCursor & cur = view()->cursor();
+FuncRequest fr(LFUN_INSET_REFRESH);
+
+InsetBase & inset = buf.inset();
+InsetIterator it = inset_iterator_begin(inset);
+InsetIterator const end = inset_iterator_end(inset);
+for (; it != end; ++it)
+ if (it->lyxCode() == InsetBase::CITE_CODE)
+ it->dispatch(cur, fr);
+ }
+
+ if (old_params.textclass != params.textclass) {
+owner->message(_("Converting document to new document class..."));
+textclasslist[params.textclass].load();
+recordUndoFullDocument(view());
+StableDocIterator backcur(view()->cursor());
+ErrorList el;
+lyx::cap::SwitchBetweenClasses(
+ old_params.textclass,
+ params.textclass,
+ buf.paragraphs(), el);
+
+view()->setCursor(backcur.asDocIterator(&(buf.inset(;
+bufferErrors(buf, el);
+view()->showErrorList(_("Class switch"));
+updateCounters(buf);
+update = true;
+ }
break;
}
case LFUN_TEXTCLASS_APPLY: {
+ //FIXME: the functionality of this is
+ //duplicated in LFUN_BUFFERPARAMS_APPLY; it is
+ //not clear that this LFUN should be kept. (JMarc)
recordUndoFullDocument(view());
Buffer * buffer = owner->buffer();
Index: src/frontends/controllers/ChangeLog
===
RCS file: /usr/local/lyx/cvsroot/lyx-devel/src/frontends/controllers/ChangeLog,v
retrieving revision 1.497
diff -u -p -r1.497 ChangeLog
--- src/frontends/controllers/ChangeLog 15 Sep 2005 14:56:27 - 1.497
+++ src/frontends/controllers/ChangeLog 16 Sep 2005 10:54:38 -
@@ -1,3 +1,9 @@
+2005-09-16 Jean-Marc Lasgouttes <[EMAIL PROTECTED]>
+
+ * ControlDocument.C (dispatchParams): do not invoke
+ LFUN_TEXTCLASS_APPLY, to avoid a spurious update that can cause a
+ crash. This job is now done by LFUN_BUFFERPARAMS_APPLY (bug 1987).
+
2005-09-15 Jürgen Spitzmüller <
