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_event"
  26 //-----------------------------------------------------------------------------
  27
  28 bool gtk_dialog_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxDialog *win )
  29 {
  30 /*
  31   printf( "OnDelete from " );
  32   if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  33     printf( win->GetClassInfo()->GetClassName() );
  34   printf( ".\n" );
  35 */
  36
  37   win->Close();
  38
  39   return TRUE;
  40 }
  41
  42 //-----------------------------------------------------------------------------
  43 // wxDialog
  44 //-----------------------------------------------------------------------------
  45
  46 BEGIN_EVENT_TABLE(wxDialog,wxPanel)
  47   EVT_BUTTON  (wxID_OK,       wxDialog::OnOK)
  48   EVT_BUTTON  (wxID_CANCEL,   wxDialog::OnCancel)
  49   EVT_BUTTON  (wxID_APPLY,    wxDialog::OnApply)
  50   EVT_CLOSE   (wxDialog::OnCloseWindow)
  51 END_EVENT_TABLE()
  52
  53 IMPLEMENT_DYNAMIC_CLASS(wxDialog,wxPanel)
  54
  55 wxDialog::wxDialog(void)
  56 {
  57   m_title = "";
  58   m_modalShowing = FALSE;
  59   wxTopLevelWindows.Insert( this );
  60 }
  61
  62 wxDialog::wxDialog( wxWindow *parent,
  63       wxWindowID id, const wxString &title,
  64       const wxPoint &pos, const wxSize &size,
  65       long style, const wxString &name )
  66 {
  67   m_modalShowing = FALSE;
  68   wxTopLevelWindows.Insert( this );
  69   Create( parent, id, title, pos, size, style, name );
  70 }
  71
  72 bool wxDialog::Create( wxWindow *parent,
  73       wxWindowID id, const wxString &title,
  74       const wxPoint &pos, const wxSize &size,
  75       long style, const wxString &name )
  76 {
  77   m_needParent = FALSE;
  78
  79   PreCreation( parent, id, pos, size, style, name );
  80
  81   m_widget = gtk_window_new( GTK_WINDOW_TOPLEVEL );
  82   GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
  83
  84   gtk_widget_set( m_widget, "GtkWindow::allow_shrink", TRUE, NULL);
  85
  86   gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
  87     GTK_SIGNAL_FUNC(gtk_dialog_delete_callback), (gpointer)this );
  88
  89   m_wxwindow = gtk_myfixed_new();
  90   gtk_widget_show( m_wxwindow );
  91   GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
  92
  93   gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
  94
  95   SetTitle( title );
  96
  97   if ((m_x != -1) || (m_y != -1))
  98      gtk_widget_set_uposition( m_widget, m_x, m_y );
  99
 100   gtk_widget_set_usize( m_widget, m_width, m_height );
 101
 102   PostCreation();
 103
 104   return TRUE;
 105 }
 106
 107 wxDialog::~wxDialog(void)
 108 {
 109   wxTopLevelWindows.DeleteObject( this );
 110   if (wxTopLevelWindows.Number() == 0) wxTheApp->ExitMainLoop();
 111 }
 112
 113 void wxDialog::SetTitle(const wxString& title )
 114 {
 115   m_title = title;
 116   if (m_title.IsNull()) m_title = "";
 117   gtk_window_set_title( GTK_WINDOW(m_widget), m_title );
 118 }
 119
 120 wxString wxDialog::GetTitle(void) const
 121 {
 122   return (wxString&)m_title;
 123 }
 124
 125 void wxDialog::OnApply( wxCommandEvent &WXUNUSED(event) )
 126 {
 127   if (Validate()) TransferDataFromWindow();
 128 }
 129
 130 void wxDialog::OnCancel( wxCommandEvent &WXUNUSED(event) )
 131 {
 132   if (IsModal())
 133   {
 134     EndModal(wxID_CANCEL);
 135   }
 136   else
 137   {
 138     SetReturnCode(wxID_CANCEL);
 139     this->Show(FALSE);
 140   }
 141 }
 142
 143 void wxDialog::OnOK( wxCommandEvent &WXUNUSED(event) )
 144 {
 145   if ( Validate() && TransferDataFromWindow())
 146   {
 147     if (IsModal())
 148     {
 149       EndModal(wxID_OK);
 150     }
 151     else
 152     {
 153       SetReturnCode(wxID_OK);
 154       this->Show(FALSE);
 155     }
 156   }
 157 }
 158
 159 void wxDialog::OnPaint( wxPaintEvent& WXUNUSED(event) )
 160 {
 161   // yes
 162 }
 163
 164 bool wxDialog::OnClose(void)
 165 {
 166   static wxList closing;
 167
 168   if (closing.Member(this)) return FALSE;   // no loops
 169
 170   closing.Append(this);
 171
 172   wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 173   cancelEvent.SetEventObject( this );
 174   GetEventHandler()->ProcessEvent(cancelEvent);
 175   closing.DeleteObject(this);
 176
 177   return FALSE;
 178 }
 179
 180 bool wxDialog::Destroy(void)
 181 {
 182   if (!wxPendingDelete.Member(this))
 183     wxPendingDelete.Append(this);
 184
 185   return TRUE;
 186 }
 187
 188 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 189 {
 190   if (GetEventHandler()->OnClose() || event.GetForce())
 191   {
 192     this->Destroy();
 193   }
 194 }
 195
 196 void wxDialog::ImplementSetPosition(void)
 197 {
 198   if ((m_x != -1) || (m_y != -1))
 199      gtk_widget_set_uposition( m_widget, m_x, m_y );
 200 }
 201
 202 void wxDialog::Centre( int direction )
 203 {
 204   if (direction & wxHORIZONTAL == wxHORIZONTAL) m_x = (gdk_screen_width () - m_width) / 2;
 205   if (direction & wxVERTICAL == wxVERTICAL) m_y = (gdk_screen_height () - m_height) / 2;
 206   ImplementSetPosition();
 207 }
 208
 209 bool wxDialog::Show( bool show )
 210 {
 211   if (!show && IsModal())
 212   {
 213     EndModal( wxID_CANCEL );
 214   }
 215
 216   wxWindow::Show( show );
 217
 218   if (show) InitDialog();
 219
 220   return TRUE;
 221 }
 222
 223 bool wxDialog::IsModal(void) const
 224 {
 225   return m_modalShowing;
 226 }
 227
 228 void wxDialog::SetModal( bool WXUNUSED(flag) )
 229 {
 230 /*
 231   if (flag)
 232     m_windowStyle |= wxDIALOG_MODAL;
 233   else
 234     if (m_windowStyle & wxDIALOG_MODAL) m_windowStyle -= wxDIALOG_MODAL;
 235 */
 236   wxFAIL_MSG( "wxDialog:SetModal obsolete now" );
 237 }
 238
 239 int wxDialog::ShowModal(void)
 240 {
 241   if (IsModal())
 242   {
 243     wxFAIL_MSG( "wxDialog:ShowModal called twice" );
 244     return GetReturnCode();
 245   }
 246
 247   Show( TRUE );
 248
 249   m_modalShowing = TRUE;
 250
 251   gtk_grab_add( m_widget );
 252   gtk_main();
 253   gtk_grab_remove( m_widget );
 254
 255   return GetReturnCode();
 256 }
 257
 258 void wxDialog::EndModal( int retCode )
 259 {
 260   SetReturnCode( retCode );
 261
 262   if (!IsModal())
 263   {
 264      wxFAIL_MSG( "wxDialog:EndModal called twice" );
 265      return;
 266   }
 267
 268   m_modalShowing = FALSE;
 269
 270   gtk_main_quit();
 271
 272   Show( FALSE );
 273 }
 274
 275 void wxDialog::InitDialog(void)
 276 {
 277   wxWindow::InitDialog();
 278 }
 279
 280 void wxDialog::SetIcon( const wxIcon &icon )
 281 {
 282   m_icon = icon;
 283   if (!icon.Ok()) return;
 284
 285   wxMask *mask = icon.GetMask();
 286   GdkBitmap *bm = (GdkBitmap *) NULL;
 287   if (mask) bm = mask->GetBitmap();
 288
 289   gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 290 }
 291
 292