lib/row.rb in surpass-0.0.3 vs lib/row.rb in surpass-0.0.4

@@ -63,10 +63,11 @@
       @min_col_index = a if a < @min_col_index
       @max_col_index = a if a > @max_col_index
     end
   end
   
+  # TODO can we get rid of this? Tests pass if it is commented out.
   def style=(style)
     adjust_height(style)
     @xf_index = @parent_wb.styles.add(style)
     @has_default_format = 1
   end
@@ -100,11 +101,34 @@
   def cell(col_index)
     cells.select {|c| c.index == col_index}.first
   end
   
   def write(col, label, style)
-    style = StyleFormat.new(style) if style.is_a?(Hash)
+    case style
+    when StyleFormat
+      # leave it alone
+    when Hash
+      style = StyleFormat.new(style)
+### @export "autoformats"
+    when TrueClass # Automatically apply a nice numeric format.
+      case label
+      when DateTime, Time
+        style = @parent_wb.styles.default_datetime_style
+      when Date
+        style = @parent_wb.styles.default_date_style
+      when Float
+        style = @parent_wb.styles.default_float_style
+      else
+        style = @parent_wb.styles.default_style
+      end
+### @end
+    when NilClass
+      style = @parent_wb.styles.default_style
+    else
+      raise "I don't know how to use this to format a cell #{style.inspect}"
+    end
+
     style_index = @parent_wb.styles.add(style)
     
     adjust_height(style)
     adjust_boundary_column_indexes(col)
     case label
@@ -122,10 +146,10 @@
     when Date, DateTime, Time
       @cells << NumberCell.new(self, col, style_index, as_excel_date(label))
     when ExcelFormula
       @cells << FormulaCell.new(self, col, style_index, label)
     else
-      raise label.class.name
+      raise "You are trying to write an object of class #{label.class.name} to a spreadsheet. Please convert this to a supported class such as String."
     end
   end
   
   def write_blanks(c1, c2, style)
     raise unless c1 <= c2