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