src/gtk/dialog.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dialog.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "dialog.h"
  12 #endif
  13
  14 #include "wx/dialog.h"
  15 #include "wx/frame.h"
  16 #include "wx/app.h"
  17 #include "wx/gtk/win_gtk.h"
  18
  19 //-----------------------------------------------------------------------------
  20
  21 extern wxList wxPendingDelete;
  22
  23 //-----------------------------------------------------------------------------
  24 // "delete_event"
  25 //-----------------------------------------------------------------------------
  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,wxPanel)
  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,wxPanel)
  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   if (m_parent) m_parent->AddChild( this );
 102
 103
 104   PostCreation();
 105
 106   return TRUE;
 107 }
 108
 109 wxDialog::~wxDialog(void)
 110 {
 111   wxTopLevelWindows.DeleteObject( this );
 112   if (wxTopLevelWindows.Number() == 0) wxTheApp->ExitMainLoop();
 113 }
 114
 115 void wxDialog::SetTitle(const wxString& title )
 116 {
 117   m_title = title;
 118   if (m_title.IsNull()) m_title = "";
 119   gtk_window_set_title( GTK_WINDOW(m_widget), m_title );
 120 }
 121
 122 wxString wxDialog::GetTitle(void) const
 123 {
 124   return (wxString&)m_title;
 125 }
 126
 127 void wxDialog::OnApply( wxCommandEvent &WXUNUSED(event) )
 128 {
 129   if (Validate()) TransferDataFromWindow();
 130 }
 131
 132 void wxDialog::OnCancel( wxCommandEvent &WXUNUSED(event) )
 133 {
 134   if (IsModal())
 135   {
 136     EndModal(wxID_CANCEL);
 137   }
 138   else
 139   {
 140     SetReturnCode(wxID_CANCEL);
 141     this->Show(FALSE);
 142   }
 143 }
 144
 145 void wxDialog::OnOK( wxCommandEvent &WXUNUSED(event) )
 146 {
 147   if ( Validate() && TransferDataFromWindow())
 148   {
 149     if (IsModal())
 150     {
 151       EndModal(wxID_OK);
 152     }
 153     else
 154     {
 155       SetReturnCode(wxID_OK);
 156       this->Show(FALSE);
 157     }
 158   }
 159 }
 160
 161 void wxDialog::OnPaint( wxPaintEvent& WXUNUSED(event) )
 162 {
 163   // yes
 164 }
 165
 166 bool wxDialog::OnClose(void)
 167 {
 168   static wxList closing;
 169
 170   if (closing.Member(this)) return FALSE;   // no loops
 171
 172   closing.Append(this);
 173
 174   wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 175   cancelEvent.SetEventObject( this );
 176   GetEventHandler()->ProcessEvent(cancelEvent);
 177   closing.DeleteObject(this);
 178
 179   return FALSE;
 180 }
 181
 182 bool wxDialog::Destroy(void)
 183 {
 184   if (!wxPendingDelete.Member(this))
 185     wxPendingDelete.Append(this);
 186
 187   return TRUE;
 188 }
 189
 190 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 191 {
 192   if (GetEventHandler()->OnClose() || event.GetForce())
 193   {
 194     this->Destroy();
 195   }
 196 }
 197
 198 void wxDialog::ImplementSetPosition(void)
 199 {
 200   if ((m_x != -1) || (m_y != -1))
 201      gtk_widget_set_uposition( m_widget, m_x, m_y );
 202 }
 203
 204 void wxDialog::Centre( int direction )
 205 {
 206   if (direction & wxHORIZONTAL == wxHORIZONTAL) m_x = (gdk_screen_width () - m_width) / 2;
 207   if (direction & wxVERTICAL == wxVERTICAL) m_y = (gdk_screen_height () - m_height) / 2;
 208   ImplementSetPosition();
 209 }
 210
 211 bool wxDialog::Show( bool show )
 212 {
 213   if (!show && IsModal())
 214   {
 215     EndModal( wxID_CANCEL );
 216   }
 217
 218   wxWindow::Show( show );
 219
 220   if (show) InitDialog();
 221
 222   return TRUE;
 223 }
 224
 225 bool wxDialog::IsModal(void) const
 226 {
 227   return m_modalShowing;
 228 }
 229
 230 void wxDialog::SetModal( bool WXUNUSED(flag) )
 231 {
 232 /*
 233   if (flag)
 234     m_windowStyle |= wxDIALOG_MODAL;
 235   else
 236     if (m_windowStyle & wxDIALOG_MODAL) m_windowStyle -= wxDIALOG_MODAL;
 237 */
 238   wxFAIL_MSG( "wxDialog:SetModal obsolete now" );
 239 }
 240
 241 int wxDialog::ShowModal(void)
 242 {
 243   if (IsModal())
 244   {
 245     wxFAIL_MSG( "wxDialog:ShowModal called twice" );
 246     return GetReturnCode();
 247   }
 248
 249   Show( TRUE );
 250
 251   m_modalShowing = TRUE;
 252
 253   gtk_grab_add( m_widget );
 254   gtk_main();
 255   gtk_grab_remove( m_widget );
 256
 257   return GetReturnCode();
 258 }
 259
 260 void wxDialog::EndModal( int retCode )
 261 {
 262   SetReturnCode( retCode );
 263
 264   if (!IsModal())
 265   {
 266      wxFAIL_MSG( "wxDialog:EndModal called twice" );
 267      return;
 268   }
 269
 270   m_modalShowing = FALSE;
 271
 272   gtk_main_quit();
 273
 274   Show( FALSE );
 275 }
 276
 277 void wxDialog::InitDialog(void)
 278 {
 279   wxWindow::InitDialog();
 280 }
 281
 282 void wxDialog::SetIcon( const wxIcon &icon )
 283 {
 284   m_icon = icon;
 285   if (!icon.Ok()) return;
 286
 287   wxMask *mask = icon.GetMask();
 288   GdkBitmap *bm = (GdkBitmap *) NULL;
 289   if (mask) bm = mask->GetBitmap();
 290
 291   gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 292 }