* BufferParams:

[lyx.git] / src / insets / render_preview.C

diff --git a/src/insets/render_preview.C b/src/insets/render_preview.C
index f46110f13868b5e5afa33aedca02a76e883f8c71..5badea260db3690bd1119f9f68fb81e19a8ced4d 100644 (file)
--- a/src/insets/render_preview.C
+++ b/src/insets/render_preview.C
@@ -113,7 +113,7 @@ RenderPreview::getPreviewImage(Buffer const & buffer) const
 }
 
 
-void RenderPreview::metrics(MetricsInfo & mi, Dimension & dim) const
+bool RenderPreview::metrics(MetricsInfo & mi, Dimension & dim) const
 {
        BOOST_ASSERT(mi.base.bv && mi.base.bv->buffer());
 
@@ -135,7 +135,9 @@ void RenderPreview::metrics(MetricsInfo & mi, Dimension & dim) const
                dim.wid = 15 + theFontMetrics(font).width(stat);
        }
 
+       bool const changed = dim_ != dim;
        dim_ = dim;
+       return changed;
 }