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