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Really fix bug #9354

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This commit is contained in:
Enrico Forestieri 2015-05-31 00:52:49 +02:00
parent 1d28d90801
commit ad0d0f6d69
1 changed files with 32 additions and 3 deletions
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35
src/insets/InsetPreview.cpp
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@ -24,12 +24,18 @@
#include "graphics/PreviewImage.h"
#include "mathed/MacroTable.h"
#include "support/lstrings.h"
#include <sstream>
using namespace std;
namespace lyx {
using support::prefixIs;
InsetPreview::InsetPreview(Buffer * buf)
: InsetText(buf),
@ -70,10 +76,33 @@ void InsetPreview::preparePreview(DocIterator const & pos) const
TexRow texrow;
odocstringstream str;
otexstream os(str, texrow);
OutputParams runparams(&pos.buffer()->params().encoding());
Buffer const * buffer = pos.buffer();
OutputParams runparams(&buffer->params().encoding());
latex(os, runparams);
docstring const snippet = str.str();
preview_->addPreview(snippet, *pos.buffer());
// collect macros at this position in case they are used in a math inset
MacroNameSet macros;
buffer->listMacroNames(macros);
MacroNameSet::iterator it = macros.begin();
MacroNameSet::iterator end = macros.end();
docstring macro_preamble;
for (; it != end; ++it) {
MacroData const * data = buffer->getMacro(*it, pos, true);
if (data) {
odocstringstream macro_def;
data->write(macro_def, false);
docstring const md = macro_def.str();
macro_def << endl;
bool is_newcomm = prefixIs(md, from_ascii("\\newcomm"));
// assure that \newcommand defs are only added once
if (!is_newcomm || !preview_->hasMacroDef(md, *buffer)) {
if (is_newcomm)
preview_->addMacroDef(md, *buffer);
macro_preamble.append(macro_def.str());
}
}
}
docstring const snippet = macro_preamble + str.str();
preview_->addPreview(snippet, *buffer);
}