mcs/class/System.Windows.Forms/Gtk/CommonDialog.cs

   1 //
   2 // System.Windows.Forms.CommonDialog.cs
   3 //
   4 // Author:
   5 //   stubbed out by Jaak Simm (jaaksimm@firm.ee)
   6 //   Dennis Hayes (dennish@Raytek.com)
   7 //   Aleksey Ryabchuk (ryabchuk@yahoo.com)
   8 // (C) Ximian, Inc., 2002
   9 //
  10
  11 using System.ComponentModel;
  12
  13 namespace System.Windows.Forms {
  14
  15         /// <summary>
  16         /// Specifies the base class used for displaying dialog boxes on the screen.
  17         /// </summary>
  18
  19         [MonoTODO]
  20         public abstract class CommonDialog : Component {
  21
  22                 internal bool dialogRetValue = false;
  23
  24                 static CommonDialog(){
  25                         Gtk.Application.Init();
  26                 }
  27
  28                 [MonoTODO]
  29                 public CommonDialog() : base (){
  30                 }
  31
  32                 [MonoTODO]
  33                 protected virtual IntPtr HookProc(IntPtr hWnd,int msg,IntPtr wparam,IntPtr lparam){
  34                         return IntPtr.Zero;
  35                 }
  36
  37                 protected virtual void OnHelpRequest(EventArgs e){
  38                         if ( HelpRequest != null )
  39                                 HelpRequest ( this, e );
  40                 }
  41
  42                 [MonoTODO]
  43                 protected virtual IntPtr OwnerWndProc(IntPtr hWnd,int msg,IntPtr wparam,IntPtr lparam) {
  44                         throw new NotImplementedException ();
  45                 }
  46
  47                 public abstract void Reset();
  48                 protected abstract bool RunDialog(IntPtr hwndOwner);
  49
  50                 [MonoTODO]
  51                 public DialogResult ShowDialog(){
  52                         bool res = RunDialog (IntPtr.Zero);
  53                         return res ? DialogResult.OK : DialogResult.Cancel;
  54                 }
  55
  56                 public DialogResult ShowDialog(IWin32Window owner){
  57                         bool res = RunDialog ( IntPtr.Zero );
  58                         return res ? DialogResult.OK : DialogResult.Cancel;
  59                 }
  60                 public event EventHandler HelpRequest;
  61
  62                 internal Gtk.Dialog dialog;
  63                 internal Gtk.Dialog Dialog{
  64                         get {
  65                                 if (dialog == null){
  66                                         dialog = CreateDialog();
  67                                         dialog.Modal = true;
  68                                         dialog.Response += new GtkSharp.ResponseHandler (OnResponse);
  69                                         dialog.DeleteEvent += new GtkSharp.DeleteEventHandler (OnDelete);
  70                                 }
  71                                 return dialog;
  72                         }
  73                 }
  74
  75                 internal abstract Gtk.Dialog CreateDialog();
  76
  77                 internal void OnDelete (object sender, GtkSharp.DeleteEventArgs args){
  78                         Gtk.Window d = (Gtk.Window) sender;
  79                         d.Hide ();
  80                         dialogRetValue = false;
  81                         OnCancel();
  82                         args.RetVal = true;
  83                 }
  84                 internal virtual void OnResponse (object o, GtkSharp.ResponseArgs args){
  85                         switch (args.ResponseId){
  86                                 case (int)Gtk.ResponseType.Accept:
  87                                 case (int)Gtk.ResponseType.Ok:
  88                                 case (int)Gtk.ResponseType.Yes:
  89                                 case (int)Gtk.ResponseType.Apply:
  90                                                                         dialogRetValue = true;
  91                                                                         OnAccept();
  92                                                                         Dialog.Hide();
  93                                                                         break;
  94                                 default:dialogRetValue = false;
  95                                                 OnCancel();
  96                                                 Dialog.Hide();
  97                                                 break;
  98                         }
  99                 }
 100                 internal virtual void OnCancel(){
 101
 102                 }
 103                 internal virtual void OnAccept (){
 104                 }
 105         }
 106 }