Resolved a ModelView related segfault when opening the buy menu and a potental segfault in the inventory window.

2 files changed, 35 insertions, 18 deletions

diff --git a/src/ui/modelview.cc b/src/ui/modelview.cc
index 79544bb..033e4e3 100755
--- a/src/ui/modelview.cc
+++ b/src/ui/modelview.cc
@@ -47,33 +47,34 @@ void ModelView::print(const size_t indent) const
 	con_print << aux::pad_left(marker, indent*2) << label() << " \"" << modelname() << "\"" << std::endl;
 }
 
-void ModelView::set_globetexturename(const std::string & texturename, const bool bright, const std::string & coronaname)
-{
-	modelview_globetexturename.assign(texturename);
-	modelview_globecoronaname.assign(coronaname);
-	modelview_globebright = bright;
-	
+void ModelView::clear()
+{	
 	set_background(false);
+	
 	modelview_axis.clear();
 	modelview_axis.change_direction(180);
 	modelview_axis.change_pitch(-15);
 	modelview_zoom = 1.0f;
+	
 	modelview_modelname.clear();
 	
+	modelview_globetexturename.clear();
+	modelview_globecoronaname.clear();
+	modelview_globebright = false;
+}
+
+void ModelView::set_globetexturename(const std::string & texturename, const bool bright, const std::string & coronaname)
+{
+	clear();
+	modelview_globetexturename.assign(texturename);
+	modelview_globecoronaname.assign(coronaname);
+	modelview_globebright = bright;
 }
 
 void ModelView::set_modelname(const std::string & modelname)
 {
+	clear();
 	modelview_modelname.assign(modelname);
-	
-	set_background(false);	
-	modelview_axis.clear();
-	modelview_axis.change_direction(180);
-	modelview_axis.change_pitch(-15);
-	modelview_zoom = 1.0f;
-	modelview_globetexturename.clear();
-	modelview_globecoronaname.clear();
-	modelview_globebright = false;
 }
 
 void ModelView::set_colors(const math::Color & color_primary, const math::Color & color_secondary)
diff --git a/src/ui/modelview.h b/src/ui/modelview.h
index 5596271..d49acc8 100755
--- a/src/ui/modelview.h
+++ b/src/ui/modelview.h
@@ -37,13 +37,29 @@ public:
 		return modelview_radius;
 	}
 
+	/**
+	 * @brief clear the modelview and show nothing
+	 * */
+	void clear();
+	
+	/**
+	 * @brief show a textured globe with an optional corona
+	 * */
 	void set_globetexturename(const std::string & texturename, const bool bright, const std::string & coronaname);
-		
+	
+	/**
+	 * @brief show a model
+	 * */
 	void set_modelname(const std::string & modelname);
 
+	/**
+	 * @brief et primary and secondary entity color, to be used by the model renderer
+	 * */
 	void set_colors(const math::Color & color_primary, const math::Color & color_secondary);
 
-	/// print modelview description
+	/**
+	 * @brief  print modelview widget description
+	 * */
 	virtual void print(const size_t indent) const;
 
 	/**
@@ -51,7 +67,7 @@ public:
 	 * @param zoom the new zoom factor
 	 * The zoom factor will be clamped to the range [1.0-10.0]
 	 * 1.0 is not zoomed out, 10.0 is zoomed out by a factor of 10
-	 */
+	 * */
 	void set_zoom(const float zoom);
 	
 	inline void set_radius(const float radius) {