Show a basic storage type to handle a simple RGB raster graphics image,
and some primitive associated functions.

If possible provide a function to allocate an uninitialised image,
given its width and height, and provide 3 additional functions:

   one to fill an image with a plain RGB color,
   one to set a given pixel with a color,
   one to get the color of a pixel.


(If there are specificities about the storage or the allocation, explain those.)

These functions are used as a base for the articles in the category raster graphics operations, 
and a basic output function to check the results
is available in the article write ppm file.




import java.awt.image.BufferedImage
import java.awt.Color
 
class RgbBitmap(val width:Int, val height:Int) {
   val image=new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR)
 
   def fill(c:Color)={
      val g=image.getGraphics()
      g.setColor(c)
      g.fillRect(0, 0, width, height)
   }
 
   def setPixel(x:Int, y:Int, c:Color)=image.setRGB(x, y, c.getRGB())
   def getPixel(x:Int, y:Int)=new Color(image.getRGB(x, y))
}