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Update all paragraphs layouts when undoing bufferparams

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When undo restores a previous BufferParams instance, it should also
update all the layout pointers in the document's paragraphs.

Fixes #9916.
This commit is contained in:
Jean-Marc Lasgouttes 2016-01-19 16:31:35 +01:00
parent 8d00943aab
commit 82b6dc8aa9
1 changed files with 9 additions and 0 deletions
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9
src/Undo.cpp
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@ -21,6 +21,8 @@
#include "BufferParams.h"
#include "buffer_funcs.h"
#include "Cursor.h"
#include "CutAndPaste.h"
#include "ErrorList.h"
#include "Paragraph.h"
#include "ParagraphList.h"
#include "Text.h"
@ -29,6 +31,7 @@
#include "mathed/MathData.h"
#include "insets/Inset.h"
#include "insets/InsetText.h"
#include "support/debug.h"
#include "support/gettext.h"
@ -453,7 +456,13 @@ void Undo::Private::doTextUndoOrRedo(CursorData & cur, UndoElementStack & stack,
// This is a params undo element
delete otherstack.top().bparams;
otherstack.top().bparams = new BufferParams(buffer_.params());
DocumentClassConstPtr olddc = buffer_.params().documentClassPtr();
buffer_.params() = *undo.bparams;
// The error list is not supposed to be helpful here.
ErrorList el;
cap::switchBetweenClasses(olddc, buffer_.params().documentClassPtr(),
static_cast<InsetText &>(buffer_.inset()), el);
LATTEST(el.empty());
} else if (dit.inMathed()) {
// We stored the full cell here as there is not much to be
// gained by storing just 'a few' paragraphs (most if not