//  SinglePictureApplication.cs  Copyright (c) Kari Laitinen

//  http://www.naturalprogramming.com/

//  2008-02-24  File created.
//  2022-12-20  Tested in Developer Command Prompt for VS 2022.

//  This program demonstrates how a C# GUI application can show pictures.
//  The picture files (e.g. .jpg or .png) files must be in the same
//  folder where the C# program (i.e. the .exe file) is located.

//  Class Bitmap, that is a subclass of Image, is used to handle image
//  information in this program.

using System ;
using System.Windows.Forms ;
using System.Drawing ;

class SinglePictureForm : Form
{
   const int WINDOW_WIDTH  =  820 ;
   const int WINDOW_HEIGHT =  435 ;

   Image  picture_to_show ;

   public SinglePictureForm()
   {
      Text = "C# GUI APPLICATION SHOWING AN IMAGE" ;
      Size = new Size( WINDOW_WIDTH, WINDOW_HEIGHT ) ;

      picture_to_show  =  new Bitmap( "governor_arnold_schwarzenegger.jpg" ) ;
   }

   protected override void OnPaint( PaintEventArgs paint_data )
   {
      Graphics graphics = paint_data.Graphics ;

      int picture_width   =  picture_to_show.Width ;
      int picture_height  =  picture_to_show.Height ;

      int picture_position_x  =  15 ;
      int picture_position_y  =  15 ;

      //  The following statement shows the picture in its natural size.

      graphics.DrawImage( picture_to_show,
                          picture_position_x, picture_position_y,
                          picture_width, picture_height ) ;

      picture_position_x  =  picture_position_x  +  picture_width + 10 ;

      //  Next we'll show a smaller version of the picture.

      graphics.DrawImage( picture_to_show,
                          picture_position_x, picture_position_y,
                          picture_width / 2, picture_height / 2 ) ;

      picture_position_x  =  picture_position_x  +  picture_width / 2  +  10 ;

      //  The last statement shows the picture so that its width is enlarged.

      graphics.DrawImage( picture_to_show,
                          picture_position_x, picture_position_y,
                          (int) (picture_width * 1.5), picture_height ) ;
   }
}


public class SinglePictureApplication
{
   static void Main()
   {
      Application.Run( new SinglePictureForm() ) ;
   }
}