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
  18 #include "gdk/gdk.h"
  19 #include "gtk/gtk.h"
  20 #include "wx/gtk/win_gtk.h"
  21
  22 //-----------------------------------------------------------------------------
  23
  24 extern wxList wxPendingDelete;
  25
  26 //-----------------------------------------------------------------------------
  27 // "delete_event"
  28 //-----------------------------------------------------------------------------
  29
  30 bool gtk_dialog_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxDialog *win )
  31 {
  32 /*
  33     printf( "OnDelete from " );
  34     if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  35         printf( win->GetClassInfo()->GetClassName() );
  36     printf( ".\n" );
  37 */
  38
  39     win->Close();
  40
  41     return TRUE;
  42 }
  43
  44 //-----------------------------------------------------------------------------
  45 // "size_allocate"
  46 //-----------------------------------------------------------------------------
  47
  48 static void gtk_dialog_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxDialog *win )
  49 {
  50     if (!win->HasVMT()) return;
  51
  52 /*
  53     printf( "OnDialogResize from " );
  54     if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  55         printf( win->GetClassInfo()->GetClassName() );
  56     printf( ".\n" );
  57 */
  58
  59     win->GtkOnSize( alloc->x, alloc->y, alloc->width, alloc->height );
  60 }
  61
  62 //-----------------------------------------------------------------------------
  63 // "configure_event"
  64 //-----------------------------------------------------------------------------
  65
  66 static gint gtk_dialog_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *event, wxDialog *win )
  67 {
  68     if (!win->HasVMT()) return FALSE;
  69
  70     win->m_x = event->x;
  71     win->m_y = event->y;
  72
  73     wxMoveEvent mevent( wxPoint(win->m_x,win->m_y), win->GetId() );
  74     mevent.SetEventObject( win );
  75     win->GetEventHandler()->ProcessEvent( mevent );
  76
  77     return FALSE;
  78 }
  79
  80 //-----------------------------------------------------------------------------
  81 // wxDialog
  82 //-----------------------------------------------------------------------------
  83
  84 BEGIN_EVENT_TABLE(wxDialog,wxPanel)
  85     EVT_BUTTON  (wxID_OK,       wxDialog::OnOK)
  86     EVT_BUTTON  (wxID_CANCEL,   wxDialog::OnCancel)
  87     EVT_BUTTON  (wxID_APPLY,    wxDialog::OnApply)
  88     EVT_SIZE    (wxDialog::OnSize)
  89     EVT_CLOSE   (wxDialog::OnCloseWindow)
  90 END_EVENT_TABLE()
  91
  92 IMPLEMENT_DYNAMIC_CLASS(wxDialog,wxPanel)
  93
  94 wxDialog::wxDialog()
  95 {
  96     m_title = "";
  97     m_modalShowing = FALSE;
  98 }
  99
 100 wxDialog::wxDialog( wxWindow *parent,
 101                     wxWindowID id, const wxString &title,
 102                     const wxPoint &pos, const wxSize &size,
 103                     long style, const wxString &name )
 104 {
 105     m_modalShowing = FALSE;
 106     Create( parent, id, title, pos, size, style, name );
 107 }
 108
 109 bool wxDialog::Create( wxWindow *parent,
 110                        wxWindowID id, const wxString &title,
 111                        const wxPoint &pos, const wxSize &size,
 112                        long style, const wxString &name )
 113 {
 114     wxTopLevelWindows.Append( this );
 115
 116     m_needParent = FALSE;
 117
 118     PreCreation( parent, id, pos, size, style, name );
 119
 120     m_widget = gtk_window_new( GTK_WINDOW_TOPLEVEL );
 121     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 122
 123     gtk_widget_set( m_widget, "GtkWindow::allow_shrink", TRUE, NULL);
 124
 125     gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
 126         GTK_SIGNAL_FUNC(gtk_dialog_delete_callback), (gpointer)this );
 127
 128     m_wxwindow = gtk_myfixed_new();
 129     gtk_widget_show( m_wxwindow );
 130     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 131
 132     gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
 133
 134     SetTitle( title );
 135
 136     if ((m_x != -1) || (m_y != -1))
 137         gtk_widget_set_uposition( m_widget, m_x, m_y );
 138
 139     gtk_widget_set_usize( m_widget, m_width, m_height );
 140
 141     gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 142         GTK_SIGNAL_FUNC(gtk_dialog_size_callback), (gpointer)this );
 143
 144     gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event",
 145         GTK_SIGNAL_FUNC(gtk_dialog_configure_callback), (gpointer)this );
 146
 147     if (m_parent) m_parent->AddChild( this );
 148
 149     PostCreation();
 150
 151     return TRUE;
 152 }
 153
 154 wxDialog::~wxDialog()
 155 {
 156     wxTopLevelWindows.DeleteObject( this );
 157
 158     if (wxTheApp->GetTopWindow() == this)
 159     {
 160         wxTheApp->SetTopWindow( (wxWindow*) NULL );
 161     }
 162
 163     if (wxTopLevelWindows.Number() == 0)
 164     {
 165         wxTheApp->ExitMainLoop();
 166     }
 167 }
 168
 169 void wxDialog::SetTitle( const wxString& title )
 170 {
 171     m_title = title;
 172     if (m_title.IsNull()) m_title = "";
 173     gtk_window_set_title( GTK_WINDOW(m_widget), m_title );
 174 }
 175
 176 wxString wxDialog::GetTitle() const
 177 {
 178     return (wxString&)m_title;
 179 }
 180
 181 void wxDialog::OnApply( wxCommandEvent &WXUNUSED(event) )
 182 {
 183     if (Validate()) TransferDataFromWindow();
 184 }
 185
 186 void wxDialog::OnCancel( wxCommandEvent &WXUNUSED(event) )
 187 {
 188     if (IsModal())
 189     {
 190         EndModal(wxID_CANCEL);
 191     }
 192     else
 193     {
 194         SetReturnCode(wxID_CANCEL);
 195         this->Show(FALSE);
 196     }
 197 }
 198
 199 void wxDialog::OnOK( wxCommandEvent &WXUNUSED(event) )
 200 {
 201     if ( Validate() && TransferDataFromWindow())
 202     {
 203         if (IsModal())
 204         {
 205             EndModal(wxID_OK);
 206         }
 207         else
 208         {
 209             SetReturnCode(wxID_OK);
 210             this->Show(FALSE);
 211         }
 212     }
 213 }
 214
 215 void wxDialog::OnPaint( wxPaintEvent& WXUNUSED(event) )
 216 {
 217     // yes
 218 }
 219
 220 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 221 {
 222     static wxList closing;
 223
 224     if (closing.Member(this))
 225         return;   // no loops
 226
 227     if ( event.GetVeto() )
 228         return;
 229
 230     closing.Append(this);
 231
 232     wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 233     cancelEvent.SetEventObject( this );
 234     GetEventHandler()->ProcessEvent(cancelEvent);
 235     closing.DeleteObject(this);
 236 }
 237
 238 bool wxDialog::Destroy()
 239 {
 240     if (!wxPendingDelete.Member(this)) wxPendingDelete.Append(this);
 241
 242     return TRUE;
 243 }
 244
 245 void wxDialog::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height )
 246 {
 247     // due to a bug in gtk, x,y are always 0
 248     // m_x = x;
 249     // m_y = y;
 250
 251     if ((m_height == height) && (m_width == width) &&
 252         (m_sizeSet)) return;
 253     if (!m_wxwindow) return;
 254
 255     m_width = width;
 256     m_height = height;
 257
 258     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 259     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 260     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_maxWidth;
 261     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_maxHeight;
 262
 263     gtk_widget_set_usize( m_widget, m_width, m_height );
 264
 265     m_sizeSet = TRUE;
 266
 267     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 268     event.SetEventObject( this );
 269     GetEventHandler()->ProcessEvent( event );
 270 }
 271
 272 void wxDialog::OnSize( wxSizeEvent &WXUNUSED(event) )
 273 {
 274     wxASSERT_MSG( (m_widget != NULL), "invalid dialog" );
 275
 276     if (GetAutoLayout())
 277     {
 278         Layout();
 279     }
 280     else
 281     {
 282         // no child: go out !
 283         if (!GetChildren().First()) return;
 284
 285         // do we have exactly one child?
 286         wxWindow *child = (wxWindow *) NULL;
 287         for(wxNode *node = GetChildren().First(); node; node = node->Next())
 288         {
 289             wxWindow *win = (wxWindow *)node->Data();
 290             if (!wxIS_KIND_OF(win,wxFrame) && !wxIS_KIND_OF(win,wxDialog))
 291             {
 292                 // it's the second one: do nothing
 293                 if (child) return;
 294                 child = win;
 295             }
 296         }
 297
 298         // yes: set it's size to fill all the frame
 299         int client_x, client_y;
 300         GetClientSize( &client_x, &client_y );
 301         child->SetSize( 1, 1, client_x-2, client_y);
 302     }
 303 }
 304
 305 void wxDialog::SetSize( int x, int y, int width, int height, int sizeFlags )
 306 {
 307     wxASSERT_MSG( (m_widget != NULL), "invalid window" );
 308
 309     // Don't do anything for children of wxMDIChildFrame
 310     if (!m_wxwindow) return;
 311
 312     if (m_resizing) return; // I don't like recursions
 313     m_resizing = TRUE;
 314
 315     int old_x = m_x;
 316     int old_y = m_y;
 317     int old_width = m_width;
 318     int old_height = m_height;
 319
 320     if ((sizeFlags & wxSIZE_USE_EXISTING) == wxSIZE_USE_EXISTING)
 321     {
 322         if (x != -1) m_x = x;
 323         if (y != -1) m_y = y;
 324         if (width != -1) m_width = width;
 325         if (height != -1) m_height = height;
 326     }
 327     else
 328     {
 329         m_x = x;
 330         m_y = y;
 331         m_width = width;
 332         m_height = height;
 333     }
 334
 335     if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
 336     {
 337         if (width == -1) m_width = 80;
 338     }
 339
 340     if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
 341     {
 342        if (height == -1) m_height = 26;
 343     }
 344
 345     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 346     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 347     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_maxWidth;
 348     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_maxHeight;
 349
 350     if ((m_x != -1) || (m_y != -1))
 351     {
 352         if ((m_x != old_x) || (m_y != old_y))
 353             gtk_widget_set_uposition( m_widget, m_x, m_y );
 354     }
 355
 356     if ((m_width != old_width) || (m_height != old_height))
 357     {
 358         gtk_widget_set_usize( m_widget, m_width, m_height );
 359     }
 360
 361     m_sizeSet = TRUE;
 362
 363     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 364     event.SetEventObject( this );
 365     GetEventHandler()->ProcessEvent( event );
 366
 367     m_resizing = FALSE;
 368 }
 369
 370 void wxDialog::SetSize( int width, int height )
 371 {
 372     SetSize( -1, -1, width, height, wxSIZE_USE_EXISTING );
 373 }
 374
 375 void wxDialog::Centre( int direction )
 376 {
 377     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 378
 379     int x = 0;
 380     int y = 0;
 381
 382     if (direction & wxHORIZONTAL == wxHORIZONTAL) x = (gdk_screen_width () - m_width) / 2;
 383     if (direction & wxVERTICAL == wxVERTICAL) y = (gdk_screen_height () - m_height) / 2;
 384
 385     Move( x, y );
 386 }
 387
 388 bool wxDialog::Show( bool show )
 389 {
 390     if (!show && IsModal())
 391     {
 392       EndModal( wxID_CANCEL );
 393     }
 394
 395     wxWindow::Show( show );
 396
 397     if (show) InitDialog();
 398
 399     return TRUE;
 400 }
 401
 402 bool wxDialog::IsModal() const
 403 {
 404     return m_modalShowing;
 405 }
 406
 407 void wxDialog::SetModal( bool WXUNUSED(flag) )
 408 {
 409 /*
 410   if (flag)
 411     m_windowStyle |= wxDIALOG_MODAL;
 412   else
 413     if (m_windowStyle & wxDIALOG_MODAL) m_windowStyle -= wxDIALOG_MODAL;
 414 */
 415     wxFAIL_MSG( "wxDialog:SetModal obsolete now" );
 416 }
 417
 418 int wxDialog::ShowModal()
 419 {
 420     if (IsModal())
 421     {
 422        wxFAIL_MSG( "wxDialog:ShowModal called twice" );
 423        return GetReturnCode();
 424     }
 425
 426     Show( TRUE );
 427
 428     m_modalShowing = TRUE;
 429
 430     gtk_grab_add( m_widget );
 431     gtk_main();
 432     gtk_grab_remove( m_widget );
 433
 434     return GetReturnCode();
 435 }
 436
 437 void wxDialog::EndModal( int retCode )
 438 {
 439     SetReturnCode( retCode );
 440
 441     if (!IsModal())
 442     {
 443         wxFAIL_MSG( "wxDialog:EndModal called twice" );
 444         return;
 445     }
 446
 447     m_modalShowing = FALSE;
 448
 449     gtk_main_quit();
 450
 451     Show( FALSE );
 452 }
 453
 454 void wxDialog::InitDialog()
 455 {
 456     wxWindow::InitDialog();
 457 }
 458
 459 void wxDialog::SetIcon( const wxIcon &icon )
 460 {
 461     m_icon = icon;
 462     if (!icon.Ok()) return;
 463
 464     wxMask *mask = icon.GetMask();
 465     GdkBitmap *bm = (GdkBitmap *) NULL;
 466     if (mask) bm = mask->GetBitmap();
 467
 468     gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 469 }