CComponentsInfoBox: move statement for check of image name

Ensure empty pic object otherwise it can be retained on exit
of paintPicture(), if an instance of Infobox already exists.

supplement to 095c0e1b04

src/gui/components/cc_item_infobox.cpp

@@ -91,12 +91,16 @@ void CComponentsInfoBox::initVarInfobox()
 
 void CComponentsInfoBox::paintPicture()
 {
+	//ensure empty pic object
+	if (pic)
+		delete pic;
+	pic = NULL;
+
+	//exit if no image definied
 	if (pic_name == "")
 		return;
 	
-	//init and set icon paint position
-	if (pic)
-		delete pic;
+	//init pic object and set icon paint position
 	pic = new CComponentsPicture(x+fr_thickness+x_offset, y+fr_thickness/*+y_offset*/, 0, 0, "");
 	
 	//define icon