package e4s.tutorial;

import e4s.html.*;
import e4s.servlet.E4ModuleImplementation;
import e4s.util.E4ImageResizer;

/**
 * Usage of the ImageResizer class to change the width and height of images.
 * 
 * {@tutorial Example_ImageResizer}
 */
public class Example_ImageResizer extends E4ModuleImplementation
{
   public static E4Method start = null;
   
   public void start( HTML html ) 
   throws Exception
   {
      final String IMAGE_A = "images/tutorial/Example_ImageResizer/boat.png";
      final String IMAGE_B = "images/tutorial/Example_ImageResizer/coffee.gif";
      final String IMAGE_C = "images/tutorial/Example_ImageResizer/apples.jpg";
      
      BODY body = html.BODY();
      body.Message(E4Message.CAPTION,"ImageResizer: resize images to a defined size");

      TABLE table = body.TABLE(TABLE.E4S_DEFAULT_TABLE());
      
      TR trOriginal = table.TR();
      trOriginal.TD(VAlign.MIDDLE).print("Original Size");
      trOriginal.TD().IMG(IMAGE_A);
      trOriginal.TD().IMG(IMAGE_B);
      trOriginal.TD().IMG(IMAGE_C);

      TR tr100x100 = table.TR();
      tr100x100.TD(VAlign.MIDDLE).print("100 x 100 pixels");
      tr100x100.TD().IMG(E4ImageResizer.getScaledImage(IMAGE_A,100,100));
      tr100x100.TD().IMG(E4ImageResizer.getScaledImage(IMAGE_B,100,100));
      tr100x100.TD().IMG(E4ImageResizer.getScaledImage(IMAGE_C,100,100));

      TR tr150x100 = table.TR();
      tr150x100.TD(VAlign.MIDDLE).print("150 x 100 pixels, border");
      tr150x100.TD().IMG(E4ImageResizer.getScaledImage(IMAGE_A,150,100,null,E4Color.BLUE));
      tr150x100.TD().IMG(E4ImageResizer.getScaledImage(IMAGE_B,150,100,null,E4Color.YELLOW));
      tr150x100.TD().IMG(E4ImageResizer.getScaledImage(IMAGE_C,150,100,null,E4Color.RED));
   }
   
}