gsl-shell.git - gsl-shell

diff --git a/agg-plot/window.cpp b/agg-plot/window.cpp
index 58863bb2..0d7f6c8b 100644
--- a/agg-plot/window.cpp
+++ b/agg-plot/window.cpp

@@ -164,12 +164,17 @@ window::refresh_slot_by_ref(ref& ref)

this->scale(mtx);

agg::rect_base<double> bb;

- plot_type::iterator *current = ref.plot->drawing_start();

- while (ref.plot->draw_queue(*m_canvas, mtx, bb, current))

- {

- agg::rect_base<int> bbw(bb.x1 - 4, bb.y1 - 4, bb.x2 + 4, bb.y2 + 4);

- platform_support_update_region (this, bbw);

- }

+ AGG_LOCK();

+ try {

+ plot_type::iterator *current = ref.plot->drawing_start();

+ while (ref.plot->draw_queue(*m_canvas, mtx, bb, current))

+ {

+ agg::rect_base<int> bbw(bb.x1 - 4, bb.y1 - 4, bb.x2 + 4, bb.y2 + 4);

+ platform_support_update_region (this, bbw);

+ }

+ }

+ catch (std::bad_alloc&) { }

+ AGG_UNLOCK();

}

void