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)) wxPendingDelete.Append(this);
 185
 186     return TRUE;
 187 }
 188
 189 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 190 {
 191     if (GetEventHandler()->OnClose() || event.GetForce())
 192     {
 193         this->Destroy();
 194     }
 195 }
 196
 197 void wxDialog::SetSize( int x, int y, int width, int height, int sizeFlags )
 198 {
 199     wxASSERT_MSG( (m_widget != NULL), "invalid window" );
 200
 201     // Don't do anything for children of wxMDIChildFrame
 202     if (!m_wxwindow) return;
 203
 204     if (m_resizing) return; // I don't like recursions
 205     m_resizing = TRUE;
 206
 207     int old_x = m_x;
 208     int old_y = m_y;
 209     int old_width = m_width;
 210     int old_height = m_height;
 211
 212     if ((sizeFlags & wxSIZE_USE_EXISTING) == wxSIZE_USE_EXISTING)
 213     {
 214         if (x != -1) m_x = x;
 215         if (y != -1) m_y = y;
 216         if (width != -1) m_width = width;
 217         if (height != -1) m_height = height;
 218     }
 219     else
 220     {
 221         m_x = x;
 222         m_y = y;
 223         m_width = width;
 224         m_height = height;
 225     }
 226
 227     if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
 228     {
 229         if (width == -1) m_width = 80;
 230     }
 231
 232     if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
 233     {
 234        if (height == -1) m_height = 26;
 235     }
 236
 237     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 238     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 239     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 240     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 241
 242     if ((m_x != -1) || (m_y != -1))
 243     {
 244         if ((m_x != old_x) || (m_y != old_y))
 245             gtk_widget_set_uposition( m_widget, m_x, m_y );
 246     }
 247
 248     if ((m_width != old_width) || (m_height != old_height))
 249     {
 250         gtk_widget_set_usize( m_widget, m_width, m_height );
 251     }
 252
 253     m_sizeSet = TRUE;
 254
 255     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 256     event.SetEventObject( this );
 257     ProcessEvent( event );
 258
 259     m_resizing = FALSE;
 260 }
 261
 262 void wxDialog::Centre( int direction )
 263 {
 264     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 265
 266     int x,y;
 267
 268     if (direction & wxHORIZONTAL == wxHORIZONTAL) x = (gdk_screen_width () - m_width) / 2;
 269     if (direction & wxVERTICAL == wxVERTICAL) y = (gdk_screen_height () - m_height) / 2;
 270
 271     Move( x, y );
 272 }
 273
 274 bool wxDialog::Show( bool show )
 275 {
 276     if (!show && IsModal())
 277     {
 278       EndModal( wxID_CANCEL );
 279     }
 280
 281     wxWindow::Show( show );
 282
 283     if (show) InitDialog();
 284
 285     return TRUE;
 286 }
 287
 288 bool wxDialog::IsModal(void) const
 289 {
 290     return m_modalShowing;
 291 }
 292
 293 void wxDialog::SetModal( bool WXUNUSED(flag) )
 294 {
 295 /*
 296   if (flag)
 297     m_windowStyle |= wxDIALOG_MODAL;
 298   else
 299     if (m_windowStyle & wxDIALOG_MODAL) m_windowStyle -= wxDIALOG_MODAL;
 300 */
 301     wxFAIL_MSG( "wxDialog:SetModal obsolete now" );
 302 }
 303
 304 int wxDialog::ShowModal(void)
 305 {
 306     if (IsModal())
 307     {
 308        wxFAIL_MSG( "wxDialog:ShowModal called twice" );
 309        return GetReturnCode();
 310     }
 311
 312     Show( TRUE );
 313
 314     m_modalShowing = TRUE;
 315
 316     gtk_grab_add( m_widget );
 317     gtk_main();
 318     gtk_grab_remove( m_widget );
 319
 320     return GetReturnCode();
 321 }
 322
 323 void wxDialog::EndModal( int retCode )
 324 {
 325     SetReturnCode( retCode );
 326
 327     if (!IsModal())
 328     {
 329         wxFAIL_MSG( "wxDialog:EndModal called twice" );
 330         return;
 331     }
 332
 333     m_modalShowing = FALSE;
 334
 335     gtk_main_quit();
 336
 337     Show( FALSE );
 338 }
 339
 340 void wxDialog::InitDialog(void)
 341 {
 342     wxWindow::InitDialog();
 343 }
 344
 345 void wxDialog::SetIcon( const wxIcon &icon )
 346 {
 347     m_icon = icon;
 348     if (!icon.Ok()) return;
 349
 350     wxMask *mask = icon.GetMask();
 351     GdkBitmap *bm = (GdkBitmap *) NULL;
 352     if (mask) bm = mask->GetBitmap();
 353
 354     gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 355 }