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    = 27;
  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     m_miniEdge = 0;
 112     m_miniTitle = 0;
 113 }
 114
 115 wxFrame::wxFrame( wxWindow *parent, wxWindowID id, const wxString &title,
 116       const wxPoint &pos, const wxSize &size,
 117       long style, const wxString &name )
 118 {
 119     m_frameMenuBar = (wxMenuBar *) NULL;
 120     m_frameStatusBar = (wxStatusBar *) NULL;
 121     m_frameToolBar = (wxToolBar *) NULL;
 122     m_sizeSet = FALSE;
 123     m_miniEdge = 0;
 124     m_miniTitle = 0;
 125     Create( parent, id, title, pos, size, style, name );
 126 }
 127
 128 bool wxFrame::Create( wxWindow *parent, wxWindowID id, const wxString &title,
 129       const wxPoint &pos, const wxSize &size,
 130       long style, const wxString &name )
 131 {
 132     wxTopLevelWindows.Append( this );
 133
 134     m_needParent = FALSE;
 135
 136     PreCreation( parent, id, pos, size, style, name );
 137
 138     m_title = title;
 139
 140     GtkWindowType win_type = GTK_WINDOW_TOPLEVEL;
 141     if (style & wxSIMPLE_BORDER) win_type = GTK_WINDOW_POPUP;
 142
 143     m_widget = gtk_window_new( win_type );
 144
 145     if ((size.x != -1) && (size.y != -1))
 146         gtk_widget_set_usize( m_widget, m_width, m_height );
 147     if ((pos.x != -1) && (pos.y != -1))
 148         gtk_widget_set_uposition( m_widget, m_x, m_y );
 149
 150     gtk_window_set_title( GTK_WINDOW(m_widget), title );
 151     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 152
 153     gtk_widget_set( m_widget, "GtkWindow::allow_shrink", TRUE, NULL );
 154
 155     gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
 156         GTK_SIGNAL_FUNC(gtk_frame_delete_callback), (gpointer)this );
 157
 158     m_wxwindow = gtk_myfixed_new();
 159     gtk_widget_show( m_wxwindow );
 160     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 161
 162     gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
 163
 164     gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 165         GTK_SIGNAL_FUNC(gtk_frame_size_callback), (gpointer)this );
 166
 167     gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event",
 168         GTK_SIGNAL_FUNC(gtk_frame_configure_callback), (gpointer)this );
 169
 170     if (m_parent) m_parent->AddChild( this );
 171
 172     PostCreation();
 173
 174     return TRUE;
 175 }
 176
 177 wxFrame::~wxFrame()
 178 {
 179     if (m_frameMenuBar) delete m_frameMenuBar;
 180     if (m_frameStatusBar) delete m_frameStatusBar;
 181     if (m_frameToolBar) delete m_frameToolBar;
 182
 183     wxTopLevelWindows.DeleteObject( this );
 184     if (wxTopLevelWindows.Number() == 0) wxTheApp->ExitMainLoop();
 185 }
 186
 187 bool wxFrame::Show( bool show )
 188 {
 189     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 190
 191     if (show && !m_sizeSet)
 192     {
 193   // by calling GtkOnSize here, we don't have to call
 194   // either after showing the frame, which would entail
 195   // much ugly flicker nor from within the size_allocate
 196   // handler, because GTK 1.1.X forbids that.
 197
 198         GtkOnSize( m_x, m_y, m_width, m_height );
 199     }
 200
 201     return wxWindow::Show( show );
 202 }
 203
 204 void wxFrame::OnCloseWindow( wxCloseEvent &event )
 205 {
 206     if (GetEventHandler()->OnClose() || event.GetForce()) this->Destroy();
 207 }
 208
 209 bool wxFrame::Destroy()
 210 {
 211     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 212
 213     if (!wxPendingDelete.Member(this)) wxPendingDelete.Append(this);
 214
 215     return TRUE;
 216 }
 217
 218 wxPoint wxFrame::GetClientAreaOrigin() const
 219 {
 220     wxPoint pt( m_miniEdge, m_miniEdge + m_miniTitle );
 221     if (m_frameMenuBar)
 222     {
 223         int h = 0;
 224         m_frameMenuBar->GetSize( (int*)NULL, &h );
 225         pt.y += h;
 226     }
 227     if (m_frameToolBar)
 228     {
 229         int h = 0;
 230         m_frameToolBar->GetSize( (int*)NULL, &h );
 231         pt.y += h;
 232     }
 233     return pt;
 234 }
 235
 236 void wxFrame::SetSize( int x, int y, int width, int height, int sizeFlags )
 237 {
 238     wxASSERT_MSG( (m_widget != NULL), "invalid window" );
 239
 240     // Don't do anything for children of wxMDIChildFrame
 241     if (!m_wxwindow) return;
 242
 243     if (m_resizing) return; // I don't like recursions
 244     m_resizing = TRUE;
 245
 246     int old_x = m_x;
 247     int old_y = m_y;
 248     int old_width = m_width;
 249     int old_height = m_height;
 250
 251     if ((sizeFlags & wxSIZE_USE_EXISTING) == wxSIZE_USE_EXISTING)
 252     {
 253         if (x != -1) m_x = x;
 254         if (y != -1) m_y = y;
 255         if (width != -1) m_width = width;
 256         if (height != -1) m_height = height;
 257     }
 258     else
 259     {
 260         m_x = x;
 261         m_y = y;
 262         m_width = width;
 263         m_height = height;
 264     }
 265
 266     if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
 267     {
 268         if (width == -1) m_width = 80;
 269     }
 270
 271     if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
 272     {
 273        if (height == -1) m_height = 26;
 274     }
 275
 276     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 277     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 278     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 279     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 280
 281     if ((m_x != -1) || (m_y != -1))
 282     {
 283         if ((m_x != old_x) || (m_y != old_y))
 284             gtk_widget_set_uposition( m_widget, m_x, m_y );
 285     }
 286
 287     if ((m_width != old_width) || (m_height != old_height))
 288     {
 289         gtk_widget_set_usize( m_widget, m_width, m_height );
 290     }
 291
 292     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 293     event.SetEventObject( this );
 294     GetEventHandler()->ProcessEvent( event );
 295
 296     m_resizing = FALSE;
 297 }
 298
 299 void wxFrame::SetSize( int width, int height )
 300 {
 301     SetSize( -1, -1, width, height, wxSIZE_USE_EXISTING );
 302 }
 303
 304 void wxFrame::Centre( int direction )
 305 {
 306     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 307
 308     int x = 0;
 309     int y = 0;
 310
 311     if (direction & wxHORIZONTAL == wxHORIZONTAL) x = (gdk_screen_width () - m_width) / 2;
 312     if (direction & wxVERTICAL == wxVERTICAL) y = (gdk_screen_height () - m_height) / 2;
 313
 314     Move( x, y );
 315 }
 316
 317 void wxFrame::GetClientSize( int *width, int *height ) const
 318 {
 319     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 320
 321     wxWindow::GetClientSize( width, height );
 322     if (height)
 323     {
 324         if (m_frameMenuBar) (*height) -= wxMENU_HEIGHT;
 325         if (m_frameStatusBar) (*height) -= wxSTATUS_HEIGHT;
 326         if (m_frameToolBar)
 327         {
 328             int y = 0;
 329             m_frameToolBar->GetSize( (int *) NULL, &y );
 330             (*height) -= y;
 331         }
 332         (*height) -= m_miniEdge*2 + m_miniTitle;
 333     }
 334     if (width)
 335     {
 336         (*width) -= m_miniEdge*2;
 337     }
 338 }
 339
 340 void wxFrame::SetClientSize( int const width, int const height )
 341 {
 342     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 343
 344     int h = height;
 345     if (m_frameMenuBar) h += wxMENU_HEIGHT;
 346     if (m_frameStatusBar) h += wxSTATUS_HEIGHT;
 347     if (m_frameToolBar)
 348     {
 349         int y = 0;
 350         m_frameToolBar->GetSize( (int *) NULL, &y );
 351         h += y;
 352     }
 353     wxWindow::SetClientSize( width + m_miniEdge*2, h  + m_miniEdge*2 + m_miniTitle );
 354 }
 355
 356 void wxFrame::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height )
 357 {
 358     // due to a bug in gtk, x,y are always 0
 359     // m_x = x;
 360     // m_y = y;
 361
 362     if (m_resizing) return;
 363     m_resizing = TRUE;
 364
 365     if (!m_wxwindow) return;
 366
 367     m_width = width;
 368     m_height = height;
 369
 370     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 371     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 372     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 373     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 374
 375     gtk_widget_set_usize( m_widget, m_width, m_height );
 376
 377     // this emulates the new wxMSW behaviour of placing all
 378     // frame-subwindows (menu, toolbar..) on one native window
 379         // OK, this hurts in the eye, but I don't want to call SetSize()
 380         // because I don't want to call any non-native functions here.
 381
 382     if (m_frameMenuBar)
 383     {
 384         int xx = m_miniEdge;
 385   int yy = m_miniEdge + m_miniTitle;
 386   int ww = m_width  - 2*m_miniEdge;
 387   int hh = wxMENU_HEIGHT;
 388         m_frameMenuBar->m_x = xx;
 389         m_frameMenuBar->m_y = yy;
 390         m_frameMenuBar->m_width = ww;
 391         m_frameMenuBar->m_height = hh;
 392
 393         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameMenuBar->m_widget, xx, yy );
 394         gtk_widget_set_usize( m_frameMenuBar->m_widget, ww, hh );
 395     }
 396
 397     if (m_frameToolBar)
 398     {
 399         int xx = m_miniEdge;
 400   int yy = m_miniEdge + m_miniTitle;
 401         if (m_frameMenuBar) yy += wxMENU_HEIGHT;
 402   int ww = m_width - 2*m_miniEdge;
 403         int hh = m_frameToolBar->m_height;
 404
 405         m_frameToolBar->m_x = xx;
 406         m_frameToolBar->m_y = yy;
 407         m_frameToolBar->m_height = hh;
 408         m_frameToolBar->m_width = ww;
 409
 410         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameToolBar->m_widget, xx, yy );
 411         gtk_widget_set_usize( m_frameToolBar->m_widget, ww, hh );
 412     }
 413
 414     if (m_frameStatusBar)
 415     {
 416         int xx = 0 + m_miniEdge;
 417   int yy = m_height - wxSTATUS_HEIGHT - m_miniEdge;
 418   int ww = m_width - 2*m_miniEdge;
 419   int hh = wxSTATUS_HEIGHT;
 420
 421         m_frameStatusBar->m_x = xx;
 422         m_frameStatusBar->m_y = yy;
 423         m_frameStatusBar->m_width = ww;
 424         m_frameStatusBar->m_height = hh;
 425
 426         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameStatusBar->m_widget, xx, yy );
 427         gtk_widget_set_usize( m_frameStatusBar->m_widget, ww, hh );
 428     }
 429
 430     m_sizeSet = TRUE;
 431
 432     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 433     event.SetEventObject( this );
 434     GetEventHandler()->ProcessEvent( event );
 435
 436     m_resizing = FALSE;
 437 }
 438
 439 void wxFrame::OnIdle(wxIdleEvent& WXUNUSED(event) )
 440 {
 441     if (!m_sizeSet)
 442         GtkOnSize( m_x, m_y, m_width, m_height );
 443
 444     DoMenuUpdates();
 445 }
 446
 447 void wxFrame::OnSize( wxSizeEvent &WXUNUSED(event) )
 448 {
 449     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 450
 451     if (GetAutoLayout())
 452     {
 453         Layout();
 454     }
 455     else
 456     {
 457         // no child: go out !
 458         if (!GetChildren().First()) return;
 459
 460         // do we have exactly one child?
 461         wxWindow *child = (wxWindow *) NULL;
 462         for(wxNode *node = GetChildren().First(); node; node = node->Next())
 463         {
 464             wxWindow *win = (wxWindow *)node->Data();
 465             if (!wxIS_KIND_OF(win,wxFrame) && !wxIS_KIND_OF(win,wxDialog)
 466 #if 0  // not in m_children anyway ?
 467               && (win != m_frameMenuBar) &&
 468               (win != m_frameToolBar) &&
 469               (win != m_frameStatusBar)
 470 #endif
 471             )
 472             {
 473           // it's the second one: do nothing
 474                 if (child) return;
 475                 child = win;
 476             }
 477         }
 478
 479         // yes: set it's size to fill all the frame
 480         int client_x, client_y;
 481         GetClientSize( &client_x, &client_y );
 482         child->SetSize( 1, 1, client_x-2, client_y-2 );
 483     }
 484 }
 485
 486 static void SetInvokingWindow( wxMenu *menu, wxWindow *win )
 487 {
 488     menu->SetInvokingWindow( win );
 489     wxNode *node = menu->m_items.First();
 490     while (node)
 491     {
 492         wxMenuItem *menuitem = (wxMenuItem*)node->Data();
 493         if (menuitem->IsSubMenu())
 494             SetInvokingWindow( menuitem->GetSubMenu(), win );
 495         node = node->Next();
 496     }
 497 }
 498
 499 void wxFrame::SetMenuBar( wxMenuBar *menuBar )
 500 {
 501     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 502     wxASSERT_MSG( (m_wxwindow != NULL), "invalid frame" );
 503
 504     m_frameMenuBar = menuBar;
 505
 506     if (m_frameMenuBar)
 507     {
 508         wxNode *node = m_frameMenuBar->m_menus.First();
 509         while (node)
 510         {
 511             wxMenu *menu = (wxMenu*)node->Data();
 512             SetInvokingWindow( menu, this );
 513             node = node->Next();
 514         }
 515
 516         if (m_frameMenuBar->m_parent != this)
 517         {
 518             m_frameMenuBar->m_parent = this;
 519             gtk_myfixed_put( GTK_MYFIXED(m_wxwindow),
 520                 m_frameMenuBar->m_widget, m_frameMenuBar->m_x, m_frameMenuBar->m_y );
 521         }
 522     }
 523
 524     if (m_sizeSet) GtkOnSize( m_x, m_y, m_width, m_height );
 525 }
 526
 527 wxMenuBar *wxFrame::GetMenuBar() const
 528 {
 529     return m_frameMenuBar;
 530 }
 531
 532 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 533 {
 534     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 535
 536     wxCHECK_MSG( m_frameToolBar == NULL, FALSE, "recreating toolbar in wxFrame" );
 537
 538     m_frameToolBar = OnCreateToolBar( style, id, name );
 539
 540     GetChildren().DeleteObject( m_frameToolBar );
 541
 542     if (m_sizeSet) GtkOnSize( m_x, m_y, m_width, m_height );
 543
 544     return m_frameToolBar;
 545 }
 546
 547 wxToolBar* wxFrame::OnCreateToolBar( long style, wxWindowID id, const wxString& name )
 548 {
 549     return new wxToolBar( this, id, wxDefaultPosition, wxDefaultSize, style, name );
 550 }
 551
 552 wxToolBar *wxFrame::GetToolBar() const
 553 {
 554     return m_frameToolBar;
 555 }
 556
 557 wxStatusBar* wxFrame::CreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 558 {
 559     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 560
 561     wxCHECK_MSG( m_frameStatusBar == NULL, FALSE, "recreating status bar in wxFrame" );
 562
 563     m_frameStatusBar = OnCreateStatusBar( number, style, id, name );
 564
 565     if (m_sizeSet) GtkOnSize( m_x, m_y, m_width, m_height );
 566
 567     return m_frameStatusBar;
 568 }
 569
 570 wxStatusBar *wxFrame::OnCreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 571 {
 572     wxStatusBar *statusBar = (wxStatusBar *) NULL;
 573
 574     statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20), style, name);
 575
 576     // Set the height according to the font and the border size
 577     wxClientDC dc(statusBar);
 578     dc.SetFont( statusBar->GetFont() );
 579
 580     long x, y;
 581     dc.GetTextExtent( "X", &x, &y );
 582
 583     int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 584
 585     statusBar->SetSize( -1, -1, 100, height );
 586
 587     statusBar->SetFieldsCount( number );
 588     return statusBar;
 589 }
 590
 591 void wxFrame::SetStatusText(const wxString& text, int number)
 592 {
 593     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 594
 595     wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set text for" );
 596
 597     m_frameStatusBar->SetStatusText(text, number);
 598 }
 599
 600 void wxFrame::SetStatusWidths(int n, const int widths_field[] )
 601 {
 602     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 603
 604     wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set widths for" );
 605
 606     m_frameStatusBar->SetStatusWidths(n, widths_field);
 607 }
 608
 609 wxStatusBar *wxFrame::GetStatusBar() const
 610 {
 611     return m_frameStatusBar;
 612 }
 613
 614 void wxFrame::SetTitle( const wxString &title )
 615 {
 616     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 617
 618     m_title = title;
 619     if (m_title.IsNull()) m_title = "";
 620     gtk_window_set_title( GTK_WINDOW(m_widget), title );
 621 }
 622
 623 void wxFrame::SetIcon( const wxIcon &icon )
 624 {
 625     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 626
 627     m_icon = icon;
 628     if (!icon.Ok()) return;
 629
 630     wxMask *mask = icon.GetMask();
 631     GdkBitmap *bm = (GdkBitmap *) NULL;
 632     if (mask) bm = mask->GetBitmap();
 633
 634     gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 635 }
 636