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    if ((win->m_width != alloc->width) || (win->m_height != alloc->height))
  54    {
  55        win->m_sizeSet = FALSE;
  56        win->m_width = alloc->width;
  57        win->m_height = alloc->height;
  58    }
  59 }
  60
  61 //-----------------------------------------------------------------------------
  62 // "delete_event"
  63 //-----------------------------------------------------------------------------
  64
  65 static gint gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxFrame *win )
  66 {
  67 /*
  68     printf( "OnDelete from " );
  69     if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  70         printf( win->GetClassInfo()->GetClassName() );
  71     printf( ".\n" );
  72 */
  73
  74     win->Close();
  75
  76     return TRUE;
  77 }
  78
  79 //-----------------------------------------------------------------------------
  80 // "configure_event"
  81 //-----------------------------------------------------------------------------
  82
  83 static gint gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *event, wxFrame *win )
  84 {
  85     if (!win->HasVMT()) return FALSE;
  86
  87     win->m_x = event->x;
  88     win->m_y = event->y;
  89
  90     return FALSE;
  91 }
  92
  93 //-----------------------------------------------------------------------------
  94 // wxFrame
  95 //-----------------------------------------------------------------------------
  96
  97 BEGIN_EVENT_TABLE(wxFrame, wxWindow)
  98     EVT_SIZE(wxFrame::OnSize)
  99     EVT_CLOSE(wxFrame::OnCloseWindow)
 100     EVT_IDLE(wxFrame::OnIdle)
 101 END_EVENT_TABLE()
 102
 103 IMPLEMENT_DYNAMIC_CLASS(wxFrame,wxWindow)
 104
 105 wxFrame::wxFrame()
 106 {
 107     m_frameMenuBar = (wxMenuBar *) NULL;
 108     m_frameStatusBar = (wxStatusBar *) NULL;
 109     m_frameToolBar = (wxToolBar *) NULL;
 110     m_sizeSet = FALSE;
 111     wxTopLevelWindows.Insert( this );
 112 }
 113
 114 wxFrame::wxFrame( wxWindow *parent, wxWindowID id, const wxString &title,
 115       const wxPoint &pos, const wxSize &size,
 116       long style, const wxString &name )
 117 {
 118     m_frameMenuBar = (wxMenuBar *) NULL;
 119     m_frameStatusBar = (wxStatusBar *) NULL;
 120     m_frameToolBar = (wxToolBar *) NULL;
 121     m_sizeSet = FALSE;
 122     Create( parent, id, title, pos, size, style, name );
 123     wxTopLevelWindows.Insert( this );
 124 }
 125
 126 bool wxFrame::Create( wxWindow *parent, wxWindowID id, const wxString &title,
 127       const wxPoint &pos, const wxSize &size,
 128       long style, const wxString &name )
 129 {
 130     m_needParent = FALSE;
 131
 132     PreCreation( parent, id, pos, size, style, name );
 133
 134     m_title = title;
 135
 136     GtkWindowType win_type = GTK_WINDOW_TOPLEVEL;
 137     if (style & wxSIMPLE_BORDER) win_type = GTK_WINDOW_POPUP;
 138
 139     m_widget = gtk_window_new( win_type );
 140
 141     if ((size.x != -1) && (size.y != -1))
 142         gtk_widget_set_usize( m_widget, m_width, m_height );
 143     if ((pos.x != -1) && (pos.y != -1))
 144         gtk_widget_set_uposition( m_widget, m_x, m_y );
 145
 146     gtk_window_set_title( GTK_WINDOW(m_widget), title );
 147     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 148
 149     gtk_widget_set( m_widget, "GtkWindow::allow_shrink", TRUE, NULL );
 150
 151     gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
 152         GTK_SIGNAL_FUNC(gtk_frame_delete_callback), (gpointer)this );
 153
 154     m_wxwindow = gtk_myfixed_new();
 155     gtk_widget_show( m_wxwindow );
 156     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 157
 158     gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
 159
 160     gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 161         GTK_SIGNAL_FUNC(gtk_frame_size_callback), (gpointer)this );
 162
 163     gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event",
 164         GTK_SIGNAL_FUNC(gtk_frame_configure_callback), (gpointer)this );
 165
 166     if (m_parent) m_parent->AddChild( this );
 167
 168     PostCreation();
 169
 170     return TRUE;
 171 }
 172
 173 wxFrame::~wxFrame()
 174 {
 175     if (m_frameMenuBar) delete m_frameMenuBar;
 176     if (m_frameStatusBar) delete m_frameStatusBar;
 177     if (m_frameToolBar) delete m_frameToolBar;
 178
 179     wxTopLevelWindows.DeleteObject( this );
 180     if (wxTopLevelWindows.Number() == 0) wxTheApp->ExitMainLoop();
 181 }
 182
 183 bool wxFrame::Show( bool show )
 184 {
 185     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 186
 187     if (show)
 188     {
 189 /*
 190         wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 191         m_sizeSet = FALSE;
 192         GetEventHandler()->ProcessEvent( event );
 193 */
 194
 195         // here we give wxFrame a chance to do resize updates
 196         // before appearing on screen. resize updates have to
 197         // be handled in idle time because of GTK's super smart
 198         // resize propagation algorithm.
 199
 200         wxYield();
 201     }
 202     return wxWindow::Show( show );
 203 }
 204
 205 void wxFrame::OnCloseWindow( wxCloseEvent &event )
 206 {
 207     if (GetEventHandler()->OnClose() || event.GetForce()) this->Destroy();
 208 }
 209
 210 bool wxFrame::Destroy()
 211 {
 212     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 213
 214     if (!wxPendingDelete.Member(this)) wxPendingDelete.Append(this);
 215
 216     return TRUE;
 217 }
 218
 219 wxPoint wxFrame::GetClientAreaOrigin() const
 220 {
 221     wxPoint pt(0, 0);
 222     if (m_frameMenuBar)
 223     {
 224         int h = 0;
 225         m_frameMenuBar->GetSize( (int*)NULL, &h );
 226         pt.y += h + 2;
 227     }
 228     if (m_frameToolBar)
 229     {
 230         int h = 0;
 231         m_frameToolBar->GetSize( (int*)NULL, &h );
 232         pt.y += h;
 233     }
 234     return pt;
 235 }
 236
 237 void wxFrame::SetSize( int x, int y, int width, int height, int sizeFlags )
 238 {
 239     wxASSERT_MSG( (m_widget != NULL), "invalid window" );
 240
 241     // Don't do anything for children of wxMDIChildFrame
 242     if (!m_wxwindow) return;
 243
 244     if (m_resizing) return; // I don't like recursions
 245     m_resizing = TRUE;
 246
 247     int old_x = m_x;
 248     int old_y = m_y;
 249     int old_width = m_width;
 250     int old_height = m_height;
 251
 252     if ((sizeFlags & wxSIZE_USE_EXISTING) == wxSIZE_USE_EXISTING)
 253     {
 254         if (x != -1) m_x = x;
 255         if (y != -1) m_y = y;
 256         if (width != -1) m_width = width;
 257         if (height != -1) m_height = height;
 258     }
 259     else
 260     {
 261         m_x = x;
 262         m_y = y;
 263         m_width = width;
 264         m_height = height;
 265     }
 266
 267     if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
 268     {
 269         if (width == -1) m_width = 80;
 270     }
 271
 272     if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
 273     {
 274        if (height == -1) m_height = 26;
 275     }
 276
 277     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 278     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 279     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 280     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 281
 282     if ((m_x != -1) || (m_y != -1))
 283     {
 284         if ((m_x != old_x) || (m_y != old_y))
 285             gtk_widget_set_uposition( m_widget, m_x, m_y );
 286     }
 287
 288     if ((m_width != old_width) || (m_height != old_height))
 289     {
 290         gtk_widget_set_usize( m_widget, m_width, m_height );
 291     }
 292
 293     m_sizeSet = TRUE;
 294
 295     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 296     event.SetEventObject( this );
 297     GetEventHandler()->ProcessEvent( event );
 298
 299     m_resizing = FALSE;
 300 }
 301
 302 void wxFrame::SetSize( int width, int height )
 303 {
 304     SetSize( -1, -1, width, height, wxSIZE_USE_EXISTING );
 305 }
 306
 307 void wxFrame::Centre( int direction )
 308 {
 309     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 310
 311     int x = 0;
 312     int y = 0;
 313
 314     if (direction & wxHORIZONTAL == wxHORIZONTAL) x = (gdk_screen_width () - m_width) / 2;
 315     if (direction & wxVERTICAL == wxVERTICAL) y = (gdk_screen_height () - m_height) / 2;
 316
 317     Move( x, y );
 318 }
 319
 320 void wxFrame::GetClientSize( int *width, int *height ) const
 321 {
 322     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 323
 324     wxWindow::GetClientSize( width, height );
 325     if (height)
 326     {
 327         if (m_frameMenuBar) (*height) -= wxMENU_HEIGHT;
 328         if (m_frameStatusBar) (*height) -= wxSTATUS_HEIGHT;
 329         if (m_frameToolBar)
 330         {
 331             int y = 0;
 332             m_frameToolBar->GetSize( (int *) NULL, &y );
 333             (*height) -= y;
 334         }
 335     }
 336 }
 337
 338 void wxFrame::SetClientSize( int const width, int const height )
 339 {
 340     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 341
 342     int h = height;
 343     if (m_frameMenuBar) h += wxMENU_HEIGHT;
 344     if (m_frameStatusBar) h += wxSTATUS_HEIGHT;
 345     if (m_frameToolBar)
 346     {
 347         int y = 0;
 348         m_frameToolBar->GetSize( (int *) NULL, &y );
 349         h += y;
 350     }
 351     wxWindow::SetClientSize( width, h );
 352 }
 353
 354 void wxFrame::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height )
 355 {
 356     // due to a bug in gtk, x,y are always 0
 357     // m_x = x;
 358     // m_y = y;
 359
 360     if (m_resizing) return;
 361     m_resizing = TRUE;
 362
 363     if (!m_wxwindow) return;
 364
 365     m_width = width;
 366     m_height = height;
 367
 368     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 369     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 370     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 371     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 372
 373 //    gtk_widget_set_usize( m_widget, m_width, m_height );
 374
 375     // This emulates the new wxMSW behaviour
 376
 377     if (m_frameMenuBar)
 378     {
 379         m_frameMenuBar->m_x = 1;
 380         m_frameMenuBar->m_y = 1;
 381         m_frameMenuBar->m_width = m_width-2;
 382         m_frameMenuBar->m_height = wxMENU_HEIGHT-2;
 383         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameMenuBar->m_widget, 1, 1 );
 384         gtk_widget_set_usize( m_frameMenuBar->m_widget, m_width-2, wxMENU_HEIGHT-2 );
 385     }
 386
 387     if (m_frameToolBar)
 388     {
 389         int y = 0;
 390         if (m_frameMenuBar) y = wxMENU_HEIGHT;
 391         int h = m_frameToolBar->m_height;
 392
 393         m_frameToolBar->m_x = 2;
 394         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameToolBar->m_widget, 2, y );
 395         gtk_widget_set_usize( m_frameToolBar->m_widget, m_width-3, h );
 396     }
 397
 398     if (m_frameStatusBar)
 399     {
 400         // OK, this hurts in the eye, but I don't want to call SetSize()
 401         // because I don't want to call any non-native functions here.
 402         m_frameStatusBar->m_x = 0;
 403         m_frameStatusBar->m_y = m_height-wxSTATUS_HEIGHT;
 404         m_frameStatusBar->m_width = m_width;
 405         m_frameStatusBar->m_height = wxSTATUS_HEIGHT;
 406         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameStatusBar->m_widget, 0, m_height-wxSTATUS_HEIGHT );
 407         gtk_widget_set_usize( m_frameStatusBar->m_widget, m_width, wxSTATUS_HEIGHT );
 408     }
 409
 410     m_sizeSet = TRUE;
 411
 412     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 413     event.SetEventObject( this );
 414     GetEventHandler()->ProcessEvent( event );
 415
 416     m_resizing = FALSE;
 417 }
 418
 419 void wxFrame::OnIdle(wxIdleEvent& WXUNUSED(event) )
 420 {
 421     if (!m_sizeSet)
 422         GtkOnSize( m_x, m_y, m_width, m_height );
 423
 424     DoMenuUpdates();
 425 }
 426
 427 void wxFrame::OnSize( wxSizeEvent &WXUNUSED(event) )
 428 {
 429     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 430
 431     if (GetAutoLayout())
 432     {
 433         Layout();
 434     }
 435     else
 436     {
 437         // no child: go out !
 438         if (!GetChildren()->First()) return;
 439
 440         // do we have exactly one child?
 441         wxWindow *child = (wxWindow *) NULL;
 442         for(wxNode *node = GetChildren()->First(); node; node = node->Next())
 443         {
 444             wxWindow *win = (wxWindow *)node->Data();
 445             if (!IS_KIND_OF(win,wxFrame) && !IS_KIND_OF(win,wxDialog)
 446 #if 0  // not in m_children anyway ?
 447               && (win != m_frameMenuBar) &&
 448               (win != m_frameToolBar) &&
 449               (win != m_frameStatusBar)
 450 #endif
 451             )
 452             {
 453                 // it's the second one: do nothing
 454                 if (child) return;
 455                 child = win;
 456             }
 457         }
 458
 459         // yes: set it's size to fill all the frame
 460         int client_x, client_y;
 461         GetClientSize( &client_x, &client_y );
 462         child->SetSize( 1, 1, client_x-2, client_y);
 463     }
 464 }
 465
 466 static void SetInvokingWindow( wxMenu *menu, wxWindow *win )
 467 {
 468     menu->SetInvokingWindow( win );
 469     wxNode *node = menu->m_items.First();
 470     while (node)
 471     {
 472         wxMenuItem *menuitem = (wxMenuItem*)node->Data();
 473         if (menuitem->IsSubMenu())
 474             SetInvokingWindow( menuitem->GetSubMenu(), win );
 475         node = node->Next();
 476     }
 477 }
 478
 479 void wxFrame::SetMenuBar( wxMenuBar *menuBar )
 480 {
 481     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 482     wxASSERT_MSG( (m_wxwindow != NULL), "invalid frame" );
 483
 484     m_frameMenuBar = menuBar;
 485
 486     if (m_frameMenuBar)
 487     {
 488         wxNode *node = m_frameMenuBar->m_menus.First();
 489         while (node)
 490         {
 491             wxMenu *menu = (wxMenu*)node->Data();
 492             SetInvokingWindow( menu, this );
 493             node = node->Next();
 494         }
 495
 496         if (m_frameMenuBar->m_parent != this)
 497         {
 498             m_frameMenuBar->m_parent = this;
 499             gtk_myfixed_put( GTK_MYFIXED(m_wxwindow),
 500                 m_frameMenuBar->m_widget, m_frameMenuBar->m_x, m_frameMenuBar->m_y );
 501         }
 502     }
 503 }
 504
 505 wxMenuBar *wxFrame::GetMenuBar(void) const
 506 {
 507     return m_frameMenuBar;
 508 }
 509
 510 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 511 {
 512     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 513
 514     wxCHECK_MSG( m_frameToolBar == NULL, FALSE, "recreating toolbar in wxFrame" );
 515
 516     m_frameToolBar = OnCreateToolBar( style, id, name );
 517
 518     GetChildren()->DeleteObject( m_frameToolBar );
 519
 520     return m_frameToolBar;
 521 }
 522
 523 wxToolBar* wxFrame::OnCreateToolBar( long style, wxWindowID id, const wxString& name )
 524 {
 525     return new wxToolBar( this, id, wxDefaultPosition, wxDefaultSize, style, name );
 526 }
 527
 528 wxToolBar *wxFrame::GetToolBar(void) const
 529 {
 530     return m_frameToolBar;
 531 }
 532
 533 wxStatusBar* wxFrame::CreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 534 {
 535     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 536
 537     wxCHECK_MSG( m_frameStatusBar == NULL, FALSE, "recreating status bar in wxFrame" );
 538
 539     m_frameStatusBar = OnCreateStatusBar( number, style, id, name );
 540
 541     return m_frameStatusBar;
 542 }
 543
 544 wxStatusBar *wxFrame::OnCreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 545 {
 546     wxStatusBar *statusBar = (wxStatusBar *) NULL;
 547
 548     statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20), style, name);
 549
 550     // Set the height according to the font and the border size
 551     wxClientDC dc(statusBar);
 552     dc.SetFont( *statusBar->GetFont() );
 553
 554     long x, y;
 555     dc.GetTextExtent( "X", &x, &y );
 556
 557     int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 558
 559     statusBar->SetSize( -1, -1, 100, height );
 560
 561     statusBar->SetFieldsCount( number );
 562     return statusBar;
 563 }
 564
 565 void wxFrame::SetStatusText(const wxString& text, int number)
 566 {
 567     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 568
 569     wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set text for" );
 570
 571     m_frameStatusBar->SetStatusText(text, number);
 572 }
 573
 574 void wxFrame::SetStatusWidths(int n, const int widths_field[] )
 575 {
 576     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 577
 578     wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set widths for" );
 579
 580     m_frameStatusBar->SetStatusWidths(n, widths_field);
 581 }
 582
 583 wxStatusBar *wxFrame::GetStatusBar(void) const
 584 {
 585     return m_frameStatusBar;
 586 }
 587
 588 void wxFrame::SetTitle( const wxString &title )
 589 {
 590     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 591
 592     m_title = title;
 593     if (m_title.IsNull()) m_title = "";
 594     gtk_window_set_title( GTK_WINDOW(m_widget), title );
 595 }
 596
 597 void wxFrame::SetIcon( const wxIcon &icon )
 598 {
 599     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 600
 601     m_icon = icon;
 602     if (!icon.Ok()) return;
 603
 604     wxMask *mask = icon.GetMask();
 605     GdkBitmap *bm = (GdkBitmap *) NULL;
 606     if (mask) bm = mask->GetBitmap();
 607
 608     gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 609 }