Version2.0/Canvas

• Canvas Canvas.new()
  Create a new canvas

• Void Canvas.destroy(canvas)
  Destroy a canvas. Must be followed by canvas = nil
  Canvas (Canvas): canvas to destroy

• CanvasObject Canvas.newLine(x1, y1, x2, y2, color)
  Create a new line
  x1, y1, x2, y2 (Number): coordinates of the line
  color (Color): color of the line

• CanvasObject Canvas.newPoint(x1, y1, color)
  Create a new point
  x1, y1 (Number): coordinates of the point
  color (Color): color of the point

• CanvasObject Canvas.newRect(x1, y1, x2, y2, color)
  Create a new rectangle
  x1, y1, x2, y2 (Number): coordinates of the rectangle
  color (Color): color of the rectangle

• CanvasObject Canvas.newFillRect(x1, y1, x2, y2, color)
  Create a new fill rectangle
  x1, y1, x2, y2 (Number): coordinates of the rectangle
  color (Color): color of the rectangle

• CanvasObject Canvas.newGradientRect(x1, y1, x2, y2, color1, color2, color3, color4)
  Create a new gradient rectangle
  x1, y1, x2, y2 (Number): coordinates of the rectangle
  color1, color2, color3, color4 (Color): colors of the fill rectangle

• CanvasObject Canvas.newText(x1, y1, text [, color])
  Create a new text
  x1, y1 (Number): coordinates of the text
  text (String): text
  color (Color): color of the text

• CanvasObject Canvas.newTextFont(x1, y1, text, color, font)
  Create a new text with a special font
  x1, y1 (Number): coordinates of the text
  text (String): text
  color (Color): color of the text
  font (Font): special font of the text

• CanvasObject Canvas.newTextBox(x1, y1, x2, y2, text [, color])
  Create a new textbox
  x1, y1, x2, y2 (Number): coordinates of the textbox
  text (String): text
  color (Color): color of the textbox

• CanvasObject Canvas.newImage(x1, y1, image [, x2, y2] [, x3, y3])
  Create a new image
  x1, y1 (Number): coordinates of the image
  x2, y2 (Number): coordinates in the source image to draw
  x3, y3 (Number): width and height of the rectangle to draw

• Void Canvas.add(canvas, object)
  Add a CanvasObject in a canvas
  canvas (Canvas): canvas to draw
  object (CanvasObject): object to add

• Void Canvas.draw(screen, canvas, x, y)
  Draw a canvas to the screen
  screen (Number): screen where to draw (SCREEN_UP or SCREEN_DOWN)
  canvas (Canvas): canvas to draw
  x (Number): x-coordinate where to draw
  y (Number): y-coordinate where to draw

• Void Canvas.setAttr(object, attrName, attrValue)
  Set an attribute value
  object (CanvasObject): object to modify
  attName (Constant): attribute to modify. Must be ATTR_XXX. See “some useful variables” for more details
  attrValue (?): new value for the attribute. Must be the good type

• ? Canvas.getAttr(object, attrName)
  Get an attribute value. Return type depends of the attribute
  object (CanvasObject): object to use
  attName (Constant): attribute to get value. Must be ATTR_XXX. See “some useful variables” for more details