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 && !m_sizeSet)
 188     {
 189         // this yield call is required for a configure event
 190         // to be sent by GTK to its windows. this will among
 191         // others prompt all GtkScrolledWidgets to calculate
 192         // if they need scrollbars which in turn is required
 193         // for wxWindows to calculate the client size of its
 194         // windows.
 195
 196         wxYield();
 197
 198         // by calling GtkOnSize here, we don't have to call
 199         // either after showing the frame, which would entail
 200         // much ugly flicker nor from within the size_allocate
 201         // handler, because GTK 1.1.X forbids that.
 202
 203         GtkOnSize( m_x, m_y, m_width, m_height );
 204     }
 205
 206     return wxWindow::Show( show );
 207 }
 208
 209 void wxFrame::OnCloseWindow( wxCloseEvent &event )
 210 {
 211     if (GetEventHandler()->OnClose() || event.GetForce()) this->Destroy();
 212 }
 213
 214 bool wxFrame::Destroy()
 215 {
 216     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 217
 218     if (!wxPendingDelete.Member(this)) wxPendingDelete.Append(this);
 219
 220     return TRUE;
 221 }
 222
 223 wxPoint wxFrame::GetClientAreaOrigin() const
 224 {
 225     wxPoint pt(0, 0);
 226     if (m_frameMenuBar)
 227     {
 228         int h = 0;
 229         m_frameMenuBar->GetSize( (int*)NULL, &h );
 230         pt.y += h + 2;
 231     }
 232     if (m_frameToolBar)
 233     {
 234         int h = 0;
 235         m_frameToolBar->GetSize( (int*)NULL, &h );
 236         pt.y += h;
 237     }
 238     return pt;
 239 }
 240
 241 void wxFrame::SetSize( int x, int y, int width, int height, int sizeFlags )
 242 {
 243     wxASSERT_MSG( (m_widget != NULL), "invalid window" );
 244
 245     // Don't do anything for children of wxMDIChildFrame
 246     if (!m_wxwindow) return;
 247
 248     if (m_resizing) return; // I don't like recursions
 249     m_resizing = TRUE;
 250
 251     int old_x = m_x;
 252     int old_y = m_y;
 253     int old_width = m_width;
 254     int old_height = m_height;
 255
 256     if ((sizeFlags & wxSIZE_USE_EXISTING) == wxSIZE_USE_EXISTING)
 257     {
 258         if (x != -1) m_x = x;
 259         if (y != -1) m_y = y;
 260         if (width != -1) m_width = width;
 261         if (height != -1) m_height = height;
 262     }
 263     else
 264     {
 265         m_x = x;
 266         m_y = y;
 267         m_width = width;
 268         m_height = height;
 269     }
 270
 271     if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
 272     {
 273         if (width == -1) m_width = 80;
 274     }
 275
 276     if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
 277     {
 278        if (height == -1) m_height = 26;
 279     }
 280
 281     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 282     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 283     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 284     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 285
 286     if ((m_x != -1) || (m_y != -1))
 287     {
 288         if ((m_x != old_x) || (m_y != old_y))
 289             gtk_widget_set_uposition( m_widget, m_x, m_y );
 290     }
 291
 292     if ((m_width != old_width) || (m_height != old_height))
 293     {
 294         gtk_widget_set_usize( m_widget, m_width, m_height );
 295     }
 296
 297     m_sizeSet = TRUE;
 298
 299     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 300     event.SetEventObject( this );
 301     GetEventHandler()->ProcessEvent( event );
 302
 303     m_resizing = FALSE;
 304 }
 305
 306 void wxFrame::SetSize( int width, int height )
 307 {
 308     SetSize( -1, -1, width, height, wxSIZE_USE_EXISTING );
 309 }
 310
 311 void wxFrame::Centre( int direction )
 312 {
 313     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 314
 315     int x = 0;
 316     int y = 0;
 317
 318     if (direction & wxHORIZONTAL == wxHORIZONTAL) x = (gdk_screen_width () - m_width) / 2;
 319     if (direction & wxVERTICAL == wxVERTICAL) y = (gdk_screen_height () - m_height) / 2;
 320
 321     Move( x, y );
 322 }
 323
 324 void wxFrame::GetClientSize( int *width, int *height ) const
 325 {
 326     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 327
 328     wxWindow::GetClientSize( width, height );
 329     if (height)
 330     {
 331         if (m_frameMenuBar) (*height) -= wxMENU_HEIGHT;
 332         if (m_frameStatusBar) (*height) -= wxSTATUS_HEIGHT;
 333         if (m_frameToolBar)
 334         {
 335             int y = 0;
 336             m_frameToolBar->GetSize( (int *) NULL, &y );
 337             (*height) -= y;
 338         }
 339     }
 340 }
 341
 342 void wxFrame::SetClientSize( int const width, int const height )
 343 {
 344     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 345
 346     int h = height;
 347     if (m_frameMenuBar) h += wxMENU_HEIGHT;
 348     if (m_frameStatusBar) h += wxSTATUS_HEIGHT;
 349     if (m_frameToolBar)
 350     {
 351         int y = 0;
 352         m_frameToolBar->GetSize( (int *) NULL, &y );
 353         h += y;
 354     }
 355     wxWindow::SetClientSize( width, h );
 356 }
 357
 358 void wxFrame::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height )
 359 {
 360     // due to a bug in gtk, x,y are always 0
 361     // m_x = x;
 362     // m_y = y;
 363
 364     if (m_resizing) return;
 365     m_resizing = TRUE;
 366
 367     if (!m_wxwindow) return;
 368
 369     m_width = width;
 370     m_height = height;
 371
 372     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 373     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 374     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 375     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 376
 377 //    gtk_widget_set_usize( m_widget, m_width, m_height );
 378
 379     // This emulates the new wxMSW behaviour
 380
 381     if (m_frameMenuBar)
 382     {
 383         m_frameMenuBar->m_x = 1;
 384         m_frameMenuBar->m_y = 1;
 385         m_frameMenuBar->m_width = m_width-2;
 386         m_frameMenuBar->m_height = wxMENU_HEIGHT-2;
 387         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameMenuBar->m_widget, 1, 1 );
 388         gtk_widget_set_usize( m_frameMenuBar->m_widget, m_width-2, wxMENU_HEIGHT-2 );
 389     }
 390
 391     if (m_frameToolBar)
 392     {
 393         int y = 0;
 394         if (m_frameMenuBar) y = wxMENU_HEIGHT;
 395         int h = m_frameToolBar->m_height;
 396
 397         m_frameToolBar->m_x = 2;
 398         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameToolBar->m_widget, 2, y );
 399         gtk_widget_set_usize( m_frameToolBar->m_widget, m_width-3, h );
 400     }
 401
 402     if (m_frameStatusBar)
 403     {
 404         // OK, this hurts in the eye, but I don't want to call SetSize()
 405         // because I don't want to call any non-native functions here.
 406         m_frameStatusBar->m_x = 0;
 407         m_frameStatusBar->m_y = m_height-wxSTATUS_HEIGHT;
 408         m_frameStatusBar->m_width = m_width;
 409         m_frameStatusBar->m_height = wxSTATUS_HEIGHT;
 410         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameStatusBar->m_widget, 0, m_height-wxSTATUS_HEIGHT );
 411         gtk_widget_set_usize( m_frameStatusBar->m_widget, m_width, wxSTATUS_HEIGHT );
 412     }
 413
 414     m_sizeSet = TRUE;
 415
 416     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 417     event.SetEventObject( this );
 418     GetEventHandler()->ProcessEvent( event );
 419
 420     m_resizing = FALSE;
 421 }
 422
 423 void wxFrame::OnIdle(wxIdleEvent& WXUNUSED(event) )
 424 {
 425     if (!m_sizeSet)
 426         GtkOnSize( m_x, m_y, m_width, m_height );
 427
 428     DoMenuUpdates();
 429 }
 430
 431 void wxFrame::OnSize( wxSizeEvent &WXUNUSED(event) )
 432 {
 433     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 434
 435     if (GetAutoLayout())
 436     {
 437         Layout();
 438     }
 439     else
 440     {
 441         // no child: go out !
 442         if (!GetChildren()->First()) return;
 443
 444         // do we have exactly one child?
 445         wxWindow *child = (wxWindow *) NULL;
 446         for(wxNode *node = GetChildren()->First(); node; node = node->Next())
 447         {
 448             wxWindow *win = (wxWindow *)node->Data();
 449             if (!IS_KIND_OF(win,wxFrame) && !IS_KIND_OF(win,wxDialog)
 450 #if 0  // not in m_children anyway ?
 451               && (win != m_frameMenuBar) &&
 452               (win != m_frameToolBar) &&
 453               (win != m_frameStatusBar)
 454 #endif
 455             )
 456             {
 457                 // it's the second one: do nothing
 458                 if (child) return;
 459                 child = win;
 460             }
 461         }
 462
 463         // yes: set it's size to fill all the frame
 464         int client_x, client_y;
 465         GetClientSize( &client_x, &client_y );
 466         child->SetSize( 1, 1, client_x-2, client_y);
 467     }
 468 }
 469
 470 static void SetInvokingWindow( wxMenu *menu, wxWindow *win )
 471 {
 472     menu->SetInvokingWindow( win );
 473     wxNode *node = menu->m_items.First();
 474     while (node)
 475     {
 476         wxMenuItem *menuitem = (wxMenuItem*)node->Data();
 477         if (menuitem->IsSubMenu())
 478             SetInvokingWindow( menuitem->GetSubMenu(), win );
 479         node = node->Next();
 480     }
 481 }
 482
 483 void wxFrame::SetMenuBar( wxMenuBar *menuBar )
 484 {
 485     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 486     wxASSERT_MSG( (m_wxwindow != NULL), "invalid frame" );
 487
 488     m_frameMenuBar = menuBar;
 489
 490     if (m_frameMenuBar)
 491     {
 492         wxNode *node = m_frameMenuBar->m_menus.First();
 493         while (node)
 494         {
 495             wxMenu *menu = (wxMenu*)node->Data();
 496             SetInvokingWindow( menu, this );
 497             node = node->Next();
 498         }
 499
 500         if (m_frameMenuBar->m_parent != this)
 501         {
 502             m_frameMenuBar->m_parent = this;
 503             gtk_myfixed_put( GTK_MYFIXED(m_wxwindow),
 504                 m_frameMenuBar->m_widget, m_frameMenuBar->m_x, m_frameMenuBar->m_y );
 505         }
 506     }
 507 }
 508
 509 wxMenuBar *wxFrame::GetMenuBar(void) const
 510 {
 511     return m_frameMenuBar;
 512 }
 513
 514 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 515 {
 516     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 517
 518     wxCHECK_MSG( m_frameToolBar == NULL, FALSE, "recreating toolbar in wxFrame" );
 519
 520     m_frameToolBar = OnCreateToolBar( style, id, name );
 521
 522     GetChildren()->DeleteObject( m_frameToolBar );
 523
 524     return m_frameToolBar;
 525 }
 526
 527 wxToolBar* wxFrame::OnCreateToolBar( long style, wxWindowID id, const wxString& name )
 528 {
 529     return new wxToolBar( this, id, wxDefaultPosition, wxDefaultSize, style, name );
 530 }
 531
 532 wxToolBar *wxFrame::GetToolBar(void) const
 533 {
 534     return m_frameToolBar;
 535 }
 536
 537 wxStatusBar* wxFrame::CreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 538 {
 539     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 540
 541     wxCHECK_MSG( m_frameStatusBar == NULL, FALSE, "recreating status bar in wxFrame" );
 542
 543     m_frameStatusBar = OnCreateStatusBar( number, style, id, name );
 544
 545     return m_frameStatusBar;
 546 }
 547
 548 wxStatusBar *wxFrame::OnCreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 549 {
 550     wxStatusBar *statusBar = (wxStatusBar *) NULL;
 551
 552     statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20), style, name);
 553
 554     // Set the height according to the font and the border size
 555     wxClientDC dc(statusBar);
 556     dc.SetFont( *statusBar->GetFont() );
 557
 558     long x, y;
 559     dc.GetTextExtent( "X", &x, &y );
 560
 561     int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 562
 563     statusBar->SetSize( -1, -1, 100, height );
 564
 565     statusBar->SetFieldsCount( number );
 566     return statusBar;
 567 }
 568
 569 void wxFrame::SetStatusText(const wxString& text, int number)
 570 {
 571     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 572
 573     wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set text for" );
 574
 575     m_frameStatusBar->SetStatusText(text, number);
 576 }
 577
 578 void wxFrame::SetStatusWidths(int n, const int widths_field[] )
 579 {
 580     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 581
 582     wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set widths for" );
 583
 584     m_frameStatusBar->SetStatusWidths(n, widths_field);
 585 }
 586
 587 wxStatusBar *wxFrame::GetStatusBar(void) const
 588 {
 589     return m_frameStatusBar;
 590 }
 591
 592 void wxFrame::SetTitle( const wxString &title )
 593 {
 594     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 595
 596     m_title = title;
 597     if (m_title.IsNull()) m_title = "";
 598     gtk_window_set_title( GTK_WINDOW(m_widget), title );
 599 }
 600
 601 void wxFrame::SetIcon( const wxIcon &icon )
 602 {
 603     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 604
 605     m_icon = icon;
 606     if (!icon.Ok()) return;
 607
 608     wxMask *mask = icon.GetMask();
 609     GdkBitmap *bm = (GdkBitmap *) NULL;
 610     if (mask) bm = mask->GetBitmap();
 611
 612     gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 613 }