#ifndef SVG_H
#  define SVG_H

#  include <string>
#  include <vector>

   using std::string;
   using std::vector;

   // ---------------------------------------------------------------------
   // Use 'Colors::red' (for example) to refer to that color or
   // 'Colors::none' if you want to indicate that nothing should be drawn
   // ---------------------------------------------------------------------

   namespace Colors
   {
      static const string none    = "none";
      static const string red     = "red";
      static const string green   = "green";
      static const string blue    = "blue";
      static const string black   = "black";
      static const string cyan    = "cyan";
      static const string magenta = "magenta";
      static const string yellow  = "yellow";
   };

   // ---------------------------------------------------------------------
   // Constructs an SVG object and accumulates commands (rect, circle)
   // which are ultimately output via the 'write' method.
   // ---------------------------------------------------------------------

   class SVG
   {
      public:

         // ------------------------------------------------------------------
         // SVG - Construct an SVG object using 'width' and 'height'
         // ------------------------------------------------------------------

         SVG(int width, int height) : mWidth(width), mHeight(height)
         {
         }

         // ------------------------------------------------------------------
         // rect - Draw a rectangle at (x, y) using 'width', 'height' and
         //        'fill' (use 'Colors::none' if you don't wish to fill)
         //        and edge with color 'stroke' (as above, use 'Colors::none'
         //        if you don't want an edge)
         // ------------------------------------------------------------------

         void rect(
            int x, int y,
            int width, int height,
            const string &stroke, const string &fill
         );

         // ------------------------------------------------------------------
         // circle - Draw a circle at (x, y) with radius: 'radius'
         // ------------------------------------------------------------------

         void circle(
            int x, int y, int radius,
            const string &stroke, const string &fill
         );

         // ------------------------------------------------------------------
         // line - Draw a line from (x1, y1) to (x2, y2)
         // ------------------------------------------------------------------

         void line(
            int x1, int y1, int x2, int y2, const string &color
         );

         // ------------------------------------------------------------------
         // border - Draw a border using color 'color'
         // ------------------------------------------------------------------

         void border(const string &color);

         // ------------------------------------------------------------------
         // Get the SVG file's width and height
         // ------------------------------------------------------------------

         int getWidth()  const;
         int getHeight() const;

         // ------------------------------------------------------------------
         // write - Write the svg data to 'fileName', returns: true on
         //         success, false otherwise 'errMsg' will contain a message
         //         with details about the error
         // ------------------------------------------------------------------

         bool write(const string &fileName, string &errMsg);

      private:

         int mWidth;
         int mHeight;

         vector<string> mCommands;
   };

#endif