(svn r15387) -Codechange: Add a drop down list item type for char* strings.

src/widgets/dropdown.cpp

@@ -39,6 +39,16 @@ StringID DropDownListParamStringItem::String() const
 	return this->string;
 }
 
+uint DropDownListCharStringItem::Width() const
+{
+	return GetStringBoundingBox(this->string).width;
+}
+
+void DropDownListCharStringItem::Draw(int x, int y, uint width, uint height, bool sel, int bg_colour) const
+{
+	DoDrawStringTruncated(this->string, x + 2, y, sel ? TC_WHITE : TC_BLACK, width);
+}
+
 /**
  * Delete all items of a drop down list and the list itself
  * @param list List to delete.

src/widgets/dropdown_type.h

@@ -56,6 +56,21 @@ public:
 	virtual void SetParam(uint index, uint64 value) { decode_params[index] = value; }
 };
 
+/**
+ * List item containing a C char string.
+ */
+class DropDownListCharStringItem : public DropDownListItem {
+public:
+	const char *string;
+
+	DropDownListCharStringItem(const char *string, int result, bool masked) : DropDownListItem(result, masked), string(string) {}
+	virtual ~DropDownListCharStringItem() {}
+
+	virtual bool Selectable() const { return true; }
+	virtual uint Width() const;
+	virtual void Draw(int x, int y, uint width, uint height, bool sel, int bg_colour) const;
+};
+
 /**
  * A drop down list is a collection of drop down list items.
  */