src/gtk/dialog.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dialog.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "dialog.h"
  13 #endif
  14
  15 #include "wx/dialog.h"
  16 #include "wx/frame.h"
  17 #include "wx/app.h"
  18 #include "wx/gtk/win_gtk.h"
  19
  20 //-----------------------------------------------------------------------------
  21
  22 extern wxList wxPendingDelete;
  23
  24 //-----------------------------------------------------------------------------
  25 // delete
  26
  27 bool gtk_dialog_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxDialog *win )
  28 {
  29 /*
  30   printf( "OnDelete from " );
  31   if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  32     printf( win->GetClassInfo()->GetClassName() );
  33   printf( ".\n" );
  34 */
  35
  36   win->Close();
  37
  38   return TRUE;
  39 };
  40
  41 //-----------------------------------------------------------------------------
  42 // wxDialog
  43 //-----------------------------------------------------------------------------
  44
  45 BEGIN_EVENT_TABLE(wxDialog,wxWindow)
  46   EVT_BUTTON  (wxID_OK,       wxDialog::OnOK)
  47   EVT_BUTTON  (wxID_CANCEL,   wxDialog::OnCancel)
  48   EVT_BUTTON  (wxID_APPLY,    wxDialog::OnApply)
  49   EVT_CLOSE   (wxDialog::OnCloseWindow)
  50 END_EVENT_TABLE()
  51
  52 IMPLEMENT_DYNAMIC_CLASS(wxDialog,wxWindow)
  53
  54 wxDialog::wxDialog(void)
  55 {
  56   m_title = "";
  57   m_modalShowing = FALSE;
  58   wxTopLevelWindows.Insert( this );
  59 };
  60
  61 wxDialog::wxDialog( wxWindow *parent,
  62       wxWindowID id, const wxString &title,
  63       const wxPoint &pos, const wxSize &size,
  64       long style, const wxString &name )
  65 {
  66   m_modalShowing = FALSE;
  67   wxTopLevelWindows.Insert( this );
  68   Create( parent, id, title, pos, size, style, name );
  69 };
  70
  71 bool wxDialog::Create( wxWindow *parent,
  72       wxWindowID id, const wxString &title,
  73       const wxPoint &pos, const wxSize &size,
  74       long style, const wxString &name )
  75 {
  76   m_needParent = FALSE;
  77
  78   PreCreation( parent, id, pos, size, style, name );
  79
  80   m_widget = gtk_window_new( GTK_WINDOW_TOPLEVEL );
  81   GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
  82
  83   gtk_widget_set( m_widget, "GtkWindow::allow_shrink", TRUE, NULL);
  84
  85   gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
  86     GTK_SIGNAL_FUNC(gtk_dialog_delete_callback), (gpointer)this );
  87
  88   m_wxwindow = gtk_myfixed_new();
  89   gtk_widget_show( m_wxwindow );
  90   GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
  91
  92   gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
  93
  94   SetTitle( title );
  95
  96   if ((m_x != -1) || (m_y != -1))
  97      gtk_widget_set_uposition( m_widget, m_x, m_y );
  98
  99   gtk_widget_set_usize( m_widget, m_width, m_height );
 100
 101   PostCreation();
 102
 103   return TRUE;
 104 };
 105
 106 wxDialog::~wxDialog(void)
 107 {
 108   wxTopLevelWindows.DeleteObject( this );
 109   if (wxTopLevelWindows.Number() == 0) wxTheApp->ExitMainLoop();
 110 };
 111
 112 void wxDialog::SetTitle(const wxString& title )
 113 {
 114   m_title = title;
 115   if (m_title.IsNull()) m_title = "";
 116   gtk_window_set_title( GTK_WINDOW(m_widget), m_title );
 117 };
 118
 119 wxString wxDialog::GetTitle(void) const
 120 {
 121   return (wxString&)m_title;
 122 };
 123
 124 void wxDialog::OnApply( wxCommandEvent &WXUNUSED(event) )
 125 {
 126   if (Validate()) TransferDataFromWindow();
 127 };
 128
 129 void wxDialog::OnCancel( wxCommandEvent &WXUNUSED(event) )
 130 {
 131   if (IsModal())
 132   {
 133     EndModal(wxID_CANCEL);
 134   }
 135   else
 136   {
 137     SetReturnCode(wxID_CANCEL);
 138     this->Show(FALSE);
 139   };
 140 };
 141
 142 void wxDialog::OnOK( wxCommandEvent &WXUNUSED(event) )
 143 {
 144   if ( Validate() && TransferDataFromWindow())
 145   {
 146     if (IsModal())
 147     {
 148       EndModal(wxID_OK);
 149     }
 150     else
 151     {
 152       SetReturnCode(wxID_OK);
 153       this->Show(FALSE);
 154     };
 155   };
 156 };
 157
 158 void wxDialog::OnPaint( wxPaintEvent& WXUNUSED(event) )
 159 {
 160   // yes
 161 };
 162
 163 bool wxDialog::OnClose(void)
 164 {
 165   static wxList closing;
 166
 167   if (closing.Member(this)) return FALSE;   // no loops
 168
 169   closing.Append(this);
 170
 171   wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 172   cancelEvent.SetEventObject( this );
 173   GetEventHandler()->ProcessEvent(cancelEvent);
 174   closing.DeleteObject(this);
 175
 176   return FALSE;
 177 }
 178
 179 bool wxDialog::Destroy(void)
 180 {
 181   if (!wxPendingDelete.Member(this))
 182     wxPendingDelete.Append(this);
 183
 184   return TRUE;
 185 }
 186
 187 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 188 {
 189   if (GetEventHandler()->OnClose() || event.GetForce())
 190   {
 191     this->Destroy();
 192   };
 193 };
 194
 195 void wxDialog::ImplementSetPosition(void)
 196 {
 197   if ((m_x != -1) || (m_y != -1))
 198      gtk_widget_set_uposition( m_widget, m_x, m_y );
 199 }
 200
 201 void wxDialog::Centre( int direction )
 202 {
 203   if (direction & wxHORIZONTAL == wxHORIZONTAL) m_x = (gdk_screen_width () - m_width) / 2;
 204   if (direction & wxVERTICAL == wxVERTICAL) m_y = (gdk_screen_height () - m_height) / 2;
 205   ImplementSetPosition();
 206 }
 207
 208 bool wxDialog::Show( bool show )
 209 {
 210   if (!show && IsModal() && m_modalShowing)
 211   {
 212     EndModal( wxID_CANCEL );
 213   };
 214
 215   wxWindow::Show( show );
 216
 217   if (show) InitDialog();
 218
 219   return TRUE;
 220 };
 221
 222 int wxDialog::ShowModal(void)
 223 {
 224   if (m_modalShowing) return GetReturnCode();
 225
 226   Show( TRUE );
 227
 228   m_modalShowing = TRUE;
 229
 230   gtk_grab_add( m_widget );
 231   gtk_main();
 232   gtk_grab_remove( m_widget );
 233
 234   return GetReturnCode();
 235 };
 236
 237 void wxDialog::EndModal( int retCode )
 238 {
 239   SetReturnCode( retCode );
 240
 241   if (!m_modalShowing)
 242   {
 243      wxFAIL_MSG( "wxDialog: called EndModal twice" );
 244      return;
 245   };
 246
 247   m_modalShowing = FALSE;
 248
 249   gtk_main_quit();
 250 };
 251
 252 void wxDialog::InitDialog(void)
 253 {
 254   wxWindow::InitDialog();
 255 };
 256