use empty() instead of comparison with an empty string
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@@ -57,6 +57,7 @@ public:
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void getSize (int& minw, int& minh) const;
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void getAlignment (Alignment& ha, Alignment& va) const;
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void setPosition (int x, int y);
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void addPosition (int x, int y);
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void getPosition (int& x, int& y) const;
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bool inside (int x, int y) const;
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void setIcon (Cairo::RefPtr<RTSurface> i);
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