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Fix bug #8258 (Zoom of editor doesn't zoom instant preview)

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This commit is contained in:
Enrico Forestieri 2015-04-21 23:57:53 +02:00
parent 0323c677dd
commit b8f04ae29a
1 changed files with 17 additions and 3 deletions
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20
src/graphics/PreviewLoader.cpp
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@ -246,6 +246,8 @@ private:
PreviewLoader & parent_;
///
Buffer const & buffer_;
///
mutable int font_scaling_factor_;
/// We don't own this
static lyx::Converter const * pconverter_;
@ -390,6 +392,7 @@ namespace graphics {
PreviewLoader::Impl::Impl(PreviewLoader & p, Buffer const & b)
: parent_(p), buffer_(b)
{
font_scaling_factor_ = int(buffer_.fontScalingFactor());
if (!pconverter_)
pconverter_ = setConverter("lyxpreview");
}
@ -408,6 +411,19 @@ PreviewLoader::Impl::~Impl()
PreviewImage const *
PreviewLoader::Impl::preview(string const & latex_snippet) const
{
int fs = int(buffer_.fontScalingFactor());
if (font_scaling_factor_ != fs) {
// Refresh all previews on zoom changes
font_scaling_factor_ = fs;
Cache::const_iterator cit = cache_.begin();
Cache::const_iterator cend = cache_.end();
while (cit != cend) {
string const snippet = (cit++)->first;
parent_.remove(snippet);
parent_.add(snippet);
}
parent_.startLoading(false);
}
Cache::const_iterator it = cache_.find(latex_snippet);
return (it == cache_.end()) ? 0 : it->second.get();
}
@ -616,13 +632,11 @@ void PreviewLoader::Impl::startLoading(bool wait)
return;
}
double const font_scaling_factor = buffer_.fontScalingFactor();
// The conversion command.
ostringstream cs;
cs << pconverter_->command()
<< " " << quoteName(latexfile.toFilesystemEncoding())
<< " --dpi " << int(font_scaling_factor);
<< " --dpi " << font_scaling_factor_;
// FIXME XHTML
// The colors should be customizable.