/*
   * Pixastic Lib - Vertical flip - v0.1.0
   * Copyright (c) 2008 Jacob Seidelin, jseidelin@nihilogic.dk, http://blog.nihilogic.dk/
   * MIT License [http://www.opensource.org/licenses/mit-license.php]
   */
  
  Pixastic.Actions.flipv = {
          process : function(params) {
                  if (Pixastic.Client.hasCanvas()) {
                          var rect = params.options.rect;
                          var copyCanvas = document.createElement("canvas");
                          copyCanvas.width = rect.width;
                          copyCanvas.height = rect.height;
                          copyCanvas.getContext("2d").drawImage(params.image, rect.left, rect.top, rect.width, rect.height, 0, 0, rect.width, rect.height);
  
                          var ctx = params.canvas.getContext("2d");
                          ctx.clearRect(rect.left, rect.top, rect.width, rect.height);
                          ctx.scale(1,-1);
                          ctx.drawImage(copyCanvas, rect.left, -rect.top-rect.height, rect.width, rect.height)
                          params.useData = false;
  
                          return true;                
  
                  } else if (Pixastic.Client.isIE()) {
                          params.image.style.filter += " flipv";
                          return true;
                  }
          },
          checkSupport : function() {
                  return (Pixastic.Client.hasCanvas() || Pixastic.Client.isIE());
          }
  }