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      1 // Example for use of GNU gettext.
      2 // Copyright (C) 2003-2004 Free Software Foundation, Inc.
      3 // This file is in the public domain.
      4 //
      5 // Source code of the C#/Forms program.
      6 
      7 using System; /* String, EventHandler */
      8 using GNU.Gettext; /* GettextResourceManager */
      9 using System.Diagnostics; /* Process */
     10 using System.Threading; /* Thread */
     11 using System.Drawing; /* Point, Size */
     12 using System.Windows.Forms; /* Application, Form, Label, Button */
     13 
     14 public class Hello {
     15 
     16   private static GettextResourceManager catalog =
     17     new GettextResourceManager("hello-csharp-forms");
     18 
     19   class HelloWindow : Form {
     20 
     21     private int border;
     22     private Label label1;
     23     private Label label2;
     24     private Button ok;
     25 
     26     public HelloWindow () {
     27       border = 2;
     28 
     29       label1 = new Label();
     30       label1.Text = catalog.GetString("Hello, world!");
     31       label1.ClientSize = new Size(label1.PreferredWidth, label1.PreferredHeight);
     32       Controls.Add(label1);
     33 
     34       label2 = new Label();
     35       label2.Text =
     36         String.Format(
     37             catalog.GetString("This program is running as process number {0}."),
     38             Process.GetCurrentProcess().Id);
     39       label2.ClientSize = new Size(label2.PreferredWidth, label2.PreferredHeight);
     40       Controls.Add(label2);
     41 
     42       ok = new Button();
     43       Label okLabel = new Label();
     44       ok.Text = okLabel.Text = "OK";
     45       ok.ClientSize = new Size(okLabel.PreferredWidth + 12, okLabel.PreferredHeight + 4);
     46       ok.Click += new EventHandler(Quit);
     47       Controls.Add(ok);
     48 
     49       Size total = ComputePreferredSizeWithoutBorder();
     50       LayoutControls(total.Width, total.Height);
     51       ClientSize = new Size(border + total.Width + border, border + total.Height + border);
     52     }
     53 
     54     protected override void OnResize(EventArgs ev) {
     55       LayoutControls(ClientSize.Width - border - border, ClientSize.Height - border - border);
     56       base.OnResize(ev);
     57     }
     58 
     59     // Layout computation, part 1: The preferred size of this panel.
     60     private Size ComputePreferredSizeWithoutBorder () {
     61       int totalWidth = Math.Max(Math.Max(label1.PreferredWidth, label2.PreferredWidth),
     62                                 ok.Width);
     63       int totalHeight = label1.PreferredHeight + label2.PreferredHeight + 6 + ok.Height;
     64       return new Size(totalWidth, totalHeight);
     65     }
     66 
     67     // Layout computation, part 2: Determine where to put the sub-controls.
     68     private void LayoutControls (int totalWidth, int totalHeight) {
     69       label1.Location = new Point(border, border);
     70       label2.Location = new Point(border, border + label1.PreferredHeight);
     71       ok.Location = new Point(border + totalWidth - ok.Width, border + totalHeight - ok.Height);
     72     }
     73 
     74     private void Quit (Object sender, EventArgs ev) {
     75       Application.Exit();
     76     }
     77   }
     78 
     79   public static void Main () {
     80     Application.Run(new HelloWindow());
     81   }
     82 }
     83