src/gtk1/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
 138     if (wxTheApp->GetTopWindow() == this)
 139     {
 140         wxTheApp->SetTopWindow( (wxWindow*) NULL );
 141     }
 142
 143     if (wxTopLevelWindows.Number() == 0)
 144     {
 145         wxTheApp->ExitMainLoop();
 146     }
 147 }
 148
 149 void wxDialog::SetTitle( const wxString& title )
 150 {
 151     m_title = title;
 152     if (m_title.IsNull()) m_title = "";
 153     gtk_window_set_title( GTK_WINDOW(m_widget), m_title );
 154 }
 155
 156 wxString wxDialog::GetTitle() const
 157 {
 158     return (wxString&)m_title;
 159 }
 160
 161 void wxDialog::OnApply( wxCommandEvent &WXUNUSED(event) )
 162 {
 163     if (Validate()) TransferDataFromWindow();
 164 }
 165
 166 void wxDialog::OnCancel( wxCommandEvent &WXUNUSED(event) )
 167 {
 168     if (IsModal())
 169     {
 170         EndModal(wxID_CANCEL);
 171     }
 172     else
 173     {
 174         SetReturnCode(wxID_CANCEL);
 175         this->Show(FALSE);
 176     }
 177 }
 178
 179 void wxDialog::OnOK( wxCommandEvent &WXUNUSED(event) )
 180 {
 181     if ( Validate() && TransferDataFromWindow())
 182     {
 183         if (IsModal())
 184         {
 185             EndModal(wxID_OK);
 186         }
 187         else
 188         {
 189             SetReturnCode(wxID_OK);
 190             this->Show(FALSE);
 191         }
 192     }
 193 }
 194
 195 void wxDialog::OnPaint( wxPaintEvent& WXUNUSED(event) )
 196 {
 197   // yes
 198 }
 199
 200 bool wxDialog::OnClose()
 201 {
 202     static wxList closing;
 203
 204     if (closing.Member(this)) return FALSE;   // no loops
 205
 206     closing.Append(this);
 207
 208     wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 209     cancelEvent.SetEventObject( this );
 210     GetEventHandler()->ProcessEvent(cancelEvent);
 211     closing.DeleteObject(this);
 212
 213     return FALSE;
 214 }
 215
 216 bool wxDialog::Destroy()
 217 {
 218     if (!wxPendingDelete.Member(this)) wxPendingDelete.Append(this);
 219
 220     return TRUE;
 221 }
 222
 223 void wxDialog::OnCloseWindow( wxCloseEvent& event )
 224 {
 225     if (GetEventHandler()->OnClose() || event.GetForce())
 226     {
 227         this->Destroy();
 228     }
 229 }
 230
 231 void wxDialog::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height )
 232 {
 233     // due to a bug in gtk, x,y are always 0
 234     // m_x = x;
 235     // m_y = y;
 236
 237     if ((m_height == height) && (m_width == width) &&
 238         (m_sizeSet)) return;
 239     if (!m_wxwindow) return;
 240
 241     m_width = width;
 242     m_height = height;
 243
 244     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 245     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 246     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 247     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 248
 249     gtk_widget_set_usize( m_widget, m_width, m_height );
 250
 251     m_sizeSet = TRUE;
 252
 253     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 254     event.SetEventObject( this );
 255     GetEventHandler()->ProcessEvent( event );
 256 }
 257
 258 void wxDialog::OnSize( wxSizeEvent &WXUNUSED(event) )
 259 {
 260     wxASSERT_MSG( (m_widget != NULL), "invalid dialog" );
 261
 262     if (GetAutoLayout())
 263     {
 264         Layout();
 265     }
 266     else
 267     {
 268         // no child: go out !
 269         if (!GetChildren().First()) return;
 270
 271         // do we have exactly one child?
 272         wxWindow *child = (wxWindow *) NULL;
 273         for(wxNode *node = GetChildren().First(); node; node = node->Next())
 274         {
 275             wxWindow *win = (wxWindow *)node->Data();
 276             if (!wxIS_KIND_OF(win,wxFrame) && !wxIS_KIND_OF(win,wxDialog))
 277             {
 278                 // it's the second one: do nothing
 279                 if (child) return;
 280                 child = win;
 281             }
 282         }
 283
 284         // yes: set it's size to fill all the frame
 285         int client_x, client_y;
 286         GetClientSize( &client_x, &client_y );
 287         child->SetSize( 1, 1, client_x-2, client_y);
 288     }
 289 }
 290
 291 void wxDialog::SetSize( int x, int y, int width, int height, int sizeFlags )
 292 {
 293     wxASSERT_MSG( (m_widget != NULL), "invalid window" );
 294
 295     // Don't do anything for children of wxMDIChildFrame
 296     if (!m_wxwindow) return;
 297
 298     if (m_resizing) return; // I don't like recursions
 299     m_resizing = TRUE;
 300
 301     int old_x = m_x;
 302     int old_y = m_y;
 303     int old_width = m_width;
 304     int old_height = m_height;
 305
 306     if ((sizeFlags & wxSIZE_USE_EXISTING) == wxSIZE_USE_EXISTING)
 307     {
 308         if (x != -1) m_x = x;
 309         if (y != -1) m_y = y;
 310         if (width != -1) m_width = width;
 311         if (height != -1) m_height = height;
 312     }
 313     else
 314     {
 315         m_x = x;
 316         m_y = y;
 317         m_width = width;
 318         m_height = height;
 319     }
 320
 321     if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
 322     {
 323         if (width == -1) m_width = 80;
 324     }
 325
 326     if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
 327     {
 328        if (height == -1) m_height = 26;
 329     }
 330
 331     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 332     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 333     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 334     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 335
 336     if ((m_x != -1) || (m_y != -1))
 337     {
 338         if ((m_x != old_x) || (m_y != old_y))
 339             gtk_widget_set_uposition( m_widget, m_x, m_y );
 340     }
 341
 342     if ((m_width != old_width) || (m_height != old_height))
 343     {
 344         gtk_widget_set_usize( m_widget, m_width, m_height );
 345     }
 346
 347     m_sizeSet = TRUE;
 348
 349     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 350     event.SetEventObject( this );
 351     GetEventHandler()->ProcessEvent( event );
 352
 353     m_resizing = FALSE;
 354 }
 355
 356 void wxDialog::SetSize( int width, int height )
 357 {
 358     SetSize( -1, -1, width, height, wxSIZE_USE_EXISTING );
 359 }
 360
 361 void wxDialog::Centre( int direction )
 362 {
 363     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 364
 365     int x = 0;
 366     int y = 0;
 367
 368     if (direction & wxHORIZONTAL == wxHORIZONTAL) x = (gdk_screen_width () - m_width) / 2;
 369     if (direction & wxVERTICAL == wxVERTICAL) y = (gdk_screen_height () - m_height) / 2;
 370
 371     Move( x, y );
 372 }
 373
 374 bool wxDialog::Show( bool show )
 375 {
 376     if (!show && IsModal())
 377     {
 378       EndModal( wxID_CANCEL );
 379     }
 380
 381     wxWindow::Show( show );
 382
 383     if (show) InitDialog();
 384
 385     return TRUE;
 386 }
 387
 388 bool wxDialog::IsModal() const
 389 {
 390     return m_modalShowing;
 391 }
 392
 393 void wxDialog::SetModal( bool WXUNUSED(flag) )
 394 {
 395 /*
 396   if (flag)
 397     m_windowStyle |= wxDIALOG_MODAL;
 398   else
 399     if (m_windowStyle & wxDIALOG_MODAL) m_windowStyle -= wxDIALOG_MODAL;
 400 */
 401     wxFAIL_MSG( "wxDialog:SetModal obsolete now" );
 402 }
 403
 404 int wxDialog::ShowModal()
 405 {
 406     if (IsModal())
 407     {
 408        wxFAIL_MSG( "wxDialog:ShowModal called twice" );
 409        return GetReturnCode();
 410     }
 411
 412     Show( TRUE );
 413
 414     m_modalShowing = TRUE;
 415
 416     gtk_grab_add( m_widget );
 417     gtk_main();
 418     gtk_grab_remove( m_widget );
 419
 420     return GetReturnCode();
 421 }
 422
 423 void wxDialog::EndModal( int retCode )
 424 {
 425     SetReturnCode( retCode );
 426
 427     if (!IsModal())
 428     {
 429         wxFAIL_MSG( "wxDialog:EndModal called twice" );
 430         return;
 431     }
 432
 433     m_modalShowing = FALSE;
 434
 435     gtk_main_quit();
 436
 437     Show( FALSE );
 438 }
 439
 440 void wxDialog::InitDialog()
 441 {
 442     wxWindow::InitDialog();
 443 }
 444
 445 void wxDialog::SetIcon( const wxIcon &icon )
 446 {
 447     m_icon = icon;
 448     if (!icon.Ok()) return;
 449
 450     wxMask *mask = icon.GetMask();
 451     GdkBitmap *bm = (GdkBitmap *) NULL;
 452     if (mask) bm = mask->GetBitmap();
 453
 454     gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 455 }