src/gtk/frame.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        frame.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 "frame.h"
  12 #endif
  13
  14 #include "wx/frame.h"
  15 #include "wx/dialog.h"
  16 #include "wx/control.h"
  17 #include "wx/app.h"
  18 #include "wx/menu.h"
  19 #include "wx/toolbar.h"
  20 #include "wx/statusbr.h"
  21 #include "wx/dcclient.h"
  22 #include "wx/gtk/win_gtk.h"
  23
  24 //-----------------------------------------------------------------------------
  25 // constants
  26 //-----------------------------------------------------------------------------
  27
  28 const int wxMENU_HEIGHT    = 30;
  29 const int wxSTATUS_HEIGHT  = 25;
  30
  31 //-----------------------------------------------------------------------------
  32 // data
  33 //-----------------------------------------------------------------------------
  34
  35 extern wxList wxTopLevelWindows;
  36 extern wxList wxPendingDelete;
  37
  38 //-----------------------------------------------------------------------------
  39 // "size_allocate"
  40 //-----------------------------------------------------------------------------
  41
  42 static void gtk_frame_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxFrame *win )
  43 {
  44     if (!win->HasVMT()) return;
  45
  46 /*
  47     printf( "OnFrameResize from " );
  48     if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  49         printf( win->GetClassInfo()->GetClassName() );
  50     printf( ".\n" );
  51 */
  52
  53     win->GtkOnSize( alloc->x, alloc->y, alloc->width, alloc->height );
  54 }
  55
  56 //-----------------------------------------------------------------------------
  57 // "delete_event"
  58 //-----------------------------------------------------------------------------
  59
  60 static gint gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxFrame *win )
  61 {
  62 /*
  63     printf( "OnDelete from " );
  64     if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  65         printf( win->GetClassInfo()->GetClassName() );
  66     printf( ".\n" );
  67 */
  68
  69     win->Close();
  70
  71     return TRUE;
  72 }
  73
  74 //-----------------------------------------------------------------------------
  75 // "configure_event"
  76 //-----------------------------------------------------------------------------
  77
  78 static gint gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *event, wxFrame *win )
  79 {
  80     if (!win->HasVMT()) return FALSE;
  81
  82     win->m_x = event->x;
  83     win->m_y = event->y;
  84
  85     return FALSE;
  86 }
  87
  88 //-----------------------------------------------------------------------------
  89 // wxFrame
  90 //-----------------------------------------------------------------------------
  91
  92 BEGIN_EVENT_TABLE(wxFrame, wxWindow)
  93     EVT_SIZE(wxFrame::OnSize)
  94     EVT_CLOSE(wxFrame::OnCloseWindow)
  95     EVT_IDLE(wxFrame::OnIdle)
  96 END_EVENT_TABLE()
  97
  98 IMPLEMENT_DYNAMIC_CLASS(wxFrame,wxWindow)
  99
 100 wxFrame::wxFrame()
 101 {
 102     m_frameMenuBar = (wxMenuBar *) NULL;
 103     m_frameStatusBar = (wxStatusBar *) NULL;
 104     m_frameToolBar = (wxToolBar *) NULL;
 105     m_sizeSet = FALSE;
 106     wxTopLevelWindows.Insert( this );
 107 }
 108
 109 wxFrame::wxFrame( wxWindow *parent, wxWindowID id, const wxString &title,
 110       const wxPoint &pos, const wxSize &size,
 111       long style, const wxString &name )
 112 {
 113     m_frameMenuBar = (wxMenuBar *) NULL;
 114     m_frameStatusBar = (wxStatusBar *) NULL;
 115     m_frameToolBar = (wxToolBar *) NULL;
 116     m_sizeSet = FALSE;
 117     Create( parent, id, title, pos, size, style, name );
 118     wxTopLevelWindows.Insert( this );
 119 }
 120
 121 bool wxFrame::Create( wxWindow *parent, wxWindowID id, const wxString &title,
 122       const wxPoint &pos, const wxSize &size,
 123       long style, const wxString &name )
 124 {
 125     m_needParent = FALSE;
 126
 127     PreCreation( parent, id, pos, size, style, name );
 128
 129     m_title = title;
 130
 131     GtkWindowType win_type = GTK_WINDOW_TOPLEVEL;
 132     if (style & wxSIMPLE_BORDER) win_type = GTK_WINDOW_POPUP;
 133
 134     m_widget = gtk_window_new( win_type );
 135     if ((size.x != -1) && (size.y != -1))
 136         gtk_widget_set_usize( m_widget, m_width, m_height );
 137     if ((pos.x != -1) && (pos.y != -1))
 138         gtk_widget_set_uposition( m_widget, m_x, m_y );
 139
 140     gtk_window_set_title( GTK_WINDOW(m_widget), title );
 141     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 142
 143     gtk_widget_set( m_widget, "GtkWindow::allow_shrink", TRUE, NULL );
 144
 145     gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
 146         GTK_SIGNAL_FUNC(gtk_frame_delete_callback), (gpointer)this );
 147
 148     m_wxwindow = gtk_myfixed_new();
 149     gtk_widget_show( m_wxwindow );
 150     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 151
 152     gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
 153
 154     gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 155         GTK_SIGNAL_FUNC(gtk_frame_size_callback), (gpointer)this );
 156
 157     gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event",
 158         GTK_SIGNAL_FUNC(gtk_frame_configure_callback), (gpointer)this );
 159
 160     if (m_parent) m_parent->AddChild( this );
 161
 162     PostCreation();
 163
 164     return TRUE;
 165 }
 166
 167 wxFrame::~wxFrame()
 168 {
 169     if (m_frameMenuBar) delete m_frameMenuBar;
 170     if (m_frameStatusBar) delete m_frameStatusBar;
 171     if (m_frameToolBar) delete m_frameToolBar;
 172
 173     wxTopLevelWindows.DeleteObject( this );
 174     if (wxTopLevelWindows.Number() == 0) wxTheApp->ExitMainLoop();
 175 }
 176
 177 bool wxFrame::Show( bool show )
 178 {
 179     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 180
 181     if (show)
 182     {
 183         wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 184         m_sizeSet = FALSE;
 185         ProcessEvent( event );
 186     }
 187     return wxWindow::Show( show );
 188 }
 189
 190 void wxFrame::OnCloseWindow( wxCloseEvent &event )
 191 {
 192     if (GetEventHandler()->OnClose() || event.GetForce()) this->Destroy();
 193 }
 194
 195 bool wxFrame::Destroy()
 196 {
 197     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 198
 199     if (!wxPendingDelete.Member(this)) wxPendingDelete.Append(this);
 200
 201     return TRUE;
 202 }
 203
 204 wxPoint wxFrame::GetClientAreaOrigin() const
 205 {
 206     wxPoint pt(0, 0);
 207     if (m_frameMenuBar)
 208     {
 209         int h = 0;
 210         m_frameMenuBar->GetSize( (int*)NULL, &h );
 211         pt.y += h + 2;
 212     }
 213     if (m_frameToolBar)
 214     {
 215         int h = 0;
 216         m_frameToolBar->GetSize( (int*)NULL, &h );
 217         pt.y += h;
 218     }
 219     return pt;
 220 }
 221
 222 void wxFrame::SetSize( int x, int y, int width, int height, int sizeFlags )
 223 {
 224     wxASSERT_MSG( (m_widget != NULL), "invalid window" );
 225
 226     // Don't do anything for children of wxMDIChildFrame
 227     if (!m_wxwindow) return;
 228
 229     if (m_resizing) return; // I don't like recursions
 230     m_resizing = TRUE;
 231
 232     int old_x = m_x;
 233     int old_y = m_y;
 234     int old_width = m_width;
 235     int old_height = m_height;
 236
 237     if ((sizeFlags & wxSIZE_USE_EXISTING) == wxSIZE_USE_EXISTING)
 238     {
 239         if (x != -1) m_x = x;
 240         if (y != -1) m_y = y;
 241         if (width != -1) m_width = width;
 242         if (height != -1) m_height = height;
 243     }
 244     else
 245     {
 246         m_x = x;
 247         m_y = y;
 248         m_width = width;
 249         m_height = height;
 250     }
 251
 252     if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
 253     {
 254         if (width == -1) m_width = 80;
 255     }
 256
 257     if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
 258     {
 259        if (height == -1) m_height = 26;
 260     }
 261
 262     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 263     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 264     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 265     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 266
 267     if ((m_x != -1) || (m_y != -1))
 268     {
 269         if ((m_x != old_x) || (m_y != old_y))
 270             gtk_widget_set_uposition( m_widget, m_x, m_y );
 271     }
 272
 273     if ((m_width != old_width) || (m_height != old_height))
 274     {
 275         gtk_widget_set_usize( m_widget, m_width, m_height );
 276     }
 277
 278     m_sizeSet = TRUE;
 279
 280     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 281     event.SetEventObject( this );
 282     ProcessEvent( event );
 283
 284     m_resizing = FALSE;
 285 }
 286
 287 void wxFrame::SetSize( int width, int height )
 288 {
 289     SetSize( -1, -1, width, height, wxSIZE_USE_EXISTING );
 290 }
 291
 292 void wxFrame::Centre( int direction )
 293 {
 294     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 295
 296     int x = 0;
 297     int y = 0;
 298
 299     if (direction & wxHORIZONTAL == wxHORIZONTAL) x = (gdk_screen_width () - m_width) / 2;
 300     if (direction & wxVERTICAL == wxVERTICAL) y = (gdk_screen_height () - m_height) / 2;
 301
 302     Move( x, y );
 303 }
 304
 305 void wxFrame::GetClientSize( int *width, int *height ) const
 306 {
 307     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 308
 309     wxWindow::GetClientSize( width, height );
 310     if (height)
 311     {
 312         if (m_frameMenuBar) (*height) -= wxMENU_HEIGHT;
 313         if (m_frameStatusBar) (*height) -= wxSTATUS_HEIGHT;
 314         if (m_frameToolBar)
 315         {
 316             int y = 0;
 317             m_frameToolBar->GetSize( (int *) NULL, &y );
 318             (*height) -= y;
 319         }
 320     }
 321 }
 322
 323 void wxFrame::SetClientSize( int const width, int const height )
 324 {
 325     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 326
 327     int h = height;
 328     if (m_frameMenuBar) h += wxMENU_HEIGHT;
 329     if (m_frameStatusBar) h += wxSTATUS_HEIGHT;
 330     if (m_frameToolBar)
 331     {
 332         int y = 0;
 333         m_frameToolBar->GetSize( (int *) NULL, &y );
 334         h += y;
 335     }
 336     wxWindow::SetClientSize( width, h );
 337 }
 338
 339 void wxFrame::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height )
 340 {
 341     // due to a bug in gtk, x,y are always 0
 342     // m_x = x;
 343     // m_y = y;
 344
 345     if ((m_height == height) && (m_width == width) &&
 346         (m_sizeSet)) return;
 347     if (!m_wxwindow) return;
 348
 349     m_width = width;
 350     m_height = height;
 351
 352     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 353     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 354     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 355     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 356
 357     gtk_widget_set_usize( m_widget, m_width, m_height );
 358
 359     // This emulates the new wxMSW behaviour
 360
 361     if (m_frameMenuBar)
 362     {
 363         m_frameMenuBar->m_x = 1;
 364         m_frameMenuBar->m_y = 1;
 365         m_frameMenuBar->m_width = m_width-2;
 366         m_frameMenuBar->m_height = wxMENU_HEIGHT-2;
 367         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameMenuBar->m_widget, 1, 1 );
 368         gtk_widget_set_usize( m_frameMenuBar->m_widget, m_width-2, wxMENU_HEIGHT-2 );
 369     }
 370
 371     if (m_frameToolBar)
 372     {
 373         int y = 0;
 374         if (m_frameMenuBar) y = wxMENU_HEIGHT;
 375         int h = m_frameToolBar->m_height;
 376
 377         m_frameToolBar->m_x = 2;
 378         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameToolBar->m_widget, 2, y );
 379         gtk_widget_set_usize( m_frameToolBar->m_widget, m_width-3, h );
 380     }
 381
 382     if (m_frameStatusBar)
 383     {
 384         // OK, this hurts in the eye, but I don't want to call SetSize()
 385         // because I don't want to call any non-native functions here.
 386         m_frameStatusBar->m_x = 0;
 387         m_frameStatusBar->m_y = m_height-wxSTATUS_HEIGHT;
 388         m_frameStatusBar->m_width = m_width;
 389         m_frameStatusBar->m_height = wxSTATUS_HEIGHT;
 390         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameStatusBar->m_widget, 0, m_height-wxSTATUS_HEIGHT );
 391         gtk_widget_set_usize( m_frameStatusBar->m_widget, m_width, wxSTATUS_HEIGHT );
 392     }
 393
 394     m_sizeSet = TRUE;
 395
 396     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 397     event.SetEventObject( this );
 398     ProcessEvent( event );
 399 }
 400
 401 void wxFrame::OnSize( wxSizeEvent &WXUNUSED(event) )
 402 {
 403     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 404
 405     if (GetAutoLayout())
 406     {
 407         Layout();
 408     }
 409     else
 410     {
 411         // no child: go out !
 412         if (!GetChildren()->First()) return;
 413
 414         // do we have exactly one child?
 415         wxWindow *child = (wxWindow *) NULL;
 416         for(wxNode *node = GetChildren()->First(); node; node = node->Next())
 417         {
 418             wxWindow *win = (wxWindow *)node->Data();
 419             if (!IS_KIND_OF(win,wxFrame) && !IS_KIND_OF(win,wxDialog)
 420 #if 0  // not in m_children anyway ?
 421               && (win != m_frameMenuBar) &&
 422               (win != m_frameToolBar) &&
 423               (win != m_frameStatusBar)
 424 #endif
 425             )
 426             {
 427                 // it's the second one: do nothing
 428                 if (child) return;
 429                 child = win;
 430             }
 431         }
 432
 433         // yes: set it's size to fill all the frame
 434         int client_x, client_y;
 435         GetClientSize( &client_x, &client_y );
 436         child->SetSize( 1, 1, client_x-2, client_y);
 437     }
 438 }
 439
 440 static void SetInvokingWindow( wxMenu *menu, wxWindow *win )
 441 {
 442     menu->SetInvokingWindow( win );
 443     wxNode *node = menu->m_items.First();
 444     while (node)
 445     {
 446         wxMenuItem *menuitem = (wxMenuItem*)node->Data();
 447         if (menuitem->IsSubMenu())
 448             SetInvokingWindow( menuitem->GetSubMenu(), win );
 449         node = node->Next();
 450     }
 451 }
 452
 453 void wxFrame::SetMenuBar( wxMenuBar *menuBar )
 454 {
 455     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 456     wxASSERT_MSG( (m_wxwindow != NULL), "invalid frame" );
 457
 458     m_frameMenuBar = menuBar;
 459
 460     if (m_frameMenuBar)
 461     {
 462         wxNode *node = m_frameMenuBar->m_menus.First();
 463         while (node)
 464         {
 465             wxMenu *menu = (wxMenu*)node->Data();
 466             SetInvokingWindow( menu, this );
 467             node = node->Next();
 468         }
 469
 470         if (m_frameMenuBar->m_parent != this)
 471         {
 472             m_frameMenuBar->m_parent = this;
 473             gtk_myfixed_put( GTK_MYFIXED(m_wxwindow),
 474                 m_frameMenuBar->m_widget, m_frameMenuBar->m_x, m_frameMenuBar->m_y );
 475         }
 476     }
 477 }
 478
 479 wxMenuBar *wxFrame::GetMenuBar(void) const
 480 {
 481     return m_frameMenuBar;
 482 }
 483
 484 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 485 {
 486     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 487
 488     wxCHECK_MSG( m_frameToolBar == NULL, FALSE, "recreating toolbar in wxFrame" );
 489
 490     m_frameToolBar = OnCreateToolBar( style, id, name );
 491
 492     GetChildren()->DeleteObject( m_frameToolBar );
 493
 494     return m_frameToolBar;
 495 }
 496
 497 wxToolBar* wxFrame::OnCreateToolBar( long style, wxWindowID id, const wxString& name )
 498 {
 499     return new wxToolBar( this, id, wxDefaultPosition, wxDefaultSize, style, name );
 500 }
 501
 502 wxToolBar *wxFrame::GetToolBar(void) const
 503 {
 504     return m_frameToolBar;
 505 }
 506
 507 wxStatusBar* wxFrame::CreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 508 {
 509     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 510
 511     wxCHECK_MSG( m_frameStatusBar == NULL, FALSE, "recreating status bar in wxFrame" );
 512
 513     m_frameStatusBar = OnCreateStatusBar( number, style, id, name );
 514
 515     return m_frameStatusBar;
 516 }
 517
 518 wxStatusBar *wxFrame::OnCreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 519 {
 520     wxStatusBar *statusBar = (wxStatusBar *) NULL;
 521
 522     statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20), style, name);
 523
 524     // Set the height according to the font and the border size
 525     wxClientDC dc(statusBar);
 526     dc.SetFont( *statusBar->GetFont() );
 527
 528     long x, y;
 529     dc.GetTextExtent( "X", &x, &y );
 530
 531     int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 532
 533     statusBar->SetSize( -1, -1, 100, height );
 534
 535     statusBar->SetFieldsCount( number );
 536     return statusBar;
 537 }
 538
 539 void wxFrame::SetStatusText(const wxString& text, int number)
 540 {
 541     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 542
 543     wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set text for" );
 544
 545     m_frameStatusBar->SetStatusText(text, number);
 546 }
 547
 548 void wxFrame::SetStatusWidths(int n, const int widths_field[] )
 549 {
 550     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 551
 552     wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set widths for" );
 553
 554     m_frameStatusBar->SetStatusWidths(n, widths_field);
 555 }
 556
 557 wxStatusBar *wxFrame::GetStatusBar(void) const
 558 {
 559     return m_frameStatusBar;
 560 }
 561
 562 void wxFrame::SetTitle( const wxString &title )
 563 {
 564     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 565
 566     m_title = title;
 567     if (m_title.IsNull()) m_title = "";
 568     gtk_window_set_title( GTK_WINDOW(m_widget), title );
 569 }
 570
 571 void wxFrame::SetIcon( const wxIcon &icon )
 572 {
 573     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 574
 575     m_icon = icon;
 576     if (!icon.Ok()) return;
 577
 578     wxMask *mask = icon.GetMask();
 579     GdkBitmap *bm = (GdkBitmap *) NULL;
 580     if (mask) bm = mask->GetBitmap();
 581
 582     gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 583 }