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 // ============================================================================
  11 // declarations
  12 // ============================================================================
  13
  14 // ----------------------------------------------------------------------------
  15 // headers
  16 // ----------------------------------------------------------------------------
  17
  18 #ifdef __GNUG__
  19     #pragma implementation "frame.h"
  20 #endif
  21
  22 #include "wx/defs.h"
  23
  24 #include "wx/dialog.h"
  25 #include "wx/control.h"
  26 #include "wx/app.h"
  27 #include "wx/menu.h"
  28 #if wxUSE_TOOLBAR
  29     #include "wx/toolbar.h"
  30 #endif
  31 #if wxUSE_STATUSBAR
  32     #include "wx/statusbr.h"
  33 #endif
  34 #include "wx/dcclient.h"
  35
  36 #include <glib.h>
  37 #include <gdk/gdk.h>
  38 #include <gtk/gtk.h>
  39 #include <gdk/gdkkeysyms.h>
  40 #include <gdk/gdkx.h>
  41
  42 #include "wx/gtk/win_gtk.h"
  43
  44 // ----------------------------------------------------------------------------
  45 // constants
  46 // ----------------------------------------------------------------------------
  47
  48 const int wxMENU_HEIGHT    = 27;
  49 const int wxSTATUS_HEIGHT  = 25;
  50 const int wxPLACE_HOLDER   = 0;
  51
  52 // ----------------------------------------------------------------------------
  53 // idle system
  54 // ----------------------------------------------------------------------------
  55
  56 extern void wxapp_install_idle_handler();
  57 extern bool g_isIdle;
  58 extern int g_openDialogs;
  59
  60 // ----------------------------------------------------------------------------
  61 // event tables
  62 // ----------------------------------------------------------------------------
  63
  64 IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxTopLevelWindow)
  65
  66 // ============================================================================
  67 // implementation
  68 // ============================================================================
  69
  70 // ----------------------------------------------------------------------------
  71 // GTK callbacks
  72 // ----------------------------------------------------------------------------
  73
  74 #if wxUSE_MENUS_NATIVE
  75
  76 //-----------------------------------------------------------------------------
  77 // "child_attached" of menu bar
  78 //-----------------------------------------------------------------------------
  79
  80 static void gtk_menu_attached_callback( GtkWidget *WXUNUSED(widget), GtkWidget *WXUNUSED(child), wxFrame *win )
  81 {
  82     if (!win->m_hasVMT) return;
  83
  84     win->m_menuBarDetached = FALSE;
  85     win->GtkUpdateSize();
  86 }
  87
  88 //-----------------------------------------------------------------------------
  89 // "child_detached" of menu bar
  90 //-----------------------------------------------------------------------------
  91
  92 static void gtk_menu_detached_callback( GtkWidget *WXUNUSED(widget), GtkWidget *WXUNUSED(child), wxFrame *win )
  93 {
  94     if (!win->m_hasVMT) return;
  95
  96     win->m_menuBarDetached = TRUE;
  97     win->GtkUpdateSize();
  98 }
  99
 100 #endif // wxUSE_MENUS_NATIVE
 101
 102 #if wxUSE_TOOLBAR
 103 //-----------------------------------------------------------------------------
 104 // "child_attached" of tool bar
 105 //-----------------------------------------------------------------------------
 106
 107 static void gtk_toolbar_attached_callback( GtkWidget *WXUNUSED(widget), GtkWidget *WXUNUSED(child), wxFrame *win )
 108 {
 109     if (!win->m_hasVMT) return;
 110
 111     win->m_toolBarDetached = FALSE;
 112
 113     win->GtkUpdateSize();
 114 }
 115
 116 //-----------------------------------------------------------------------------
 117 // "child_detached" of tool bar
 118 //-----------------------------------------------------------------------------
 119
 120 static void gtk_toolbar_detached_callback( GtkWidget *WXUNUSED(widget), GtkWidget *WXUNUSED(child), wxFrame *win )
 121 {
 122     if (g_isIdle)
 123         wxapp_install_idle_handler();
 124
 125     if (!win->m_hasVMT) return;
 126
 127     win->m_toolBarDetached = TRUE;
 128     win->GtkUpdateSize();
 129 }
 130 #endif // wxUSE_TOOLBAR
 131
 132
 133 // ----------------------------------------------------------------------------
 134 // wxFrame itself
 135 // ----------------------------------------------------------------------------
 136
 137 //-----------------------------------------------------------------------------
 138 // InsertChild for wxFrame
 139 //-----------------------------------------------------------------------------
 140
 141 /* Callback for wxFrame. This very strange beast has to be used because
 142  * C++ has no virtual methods in a constructor. We have to emulate a
 143  * virtual function here as wxWindows requires different ways to insert
 144  * a child in container classes. */
 145
 146 static void wxInsertChildInFrame( wxFrame* parent, wxWindow* child )
 147 {
 148     wxASSERT( GTK_IS_WIDGET(child->m_widget) );
 149
 150     if (!parent->m_insertInClientArea)
 151     {
 152         /* these are outside the client area */
 153         wxFrame* frame = (wxFrame*) parent;
 154         gtk_pizza_put( GTK_PIZZA(frame->m_mainWidget),
 155                          GTK_WIDGET(child->m_widget),
 156                          child->m_x,
 157                          child->m_y,
 158                          child->m_width,
 159                          child->m_height );
 160
 161 #if wxUSE_TOOLBAR_NATIVE
 162         /* we connect to these events for recalculating the client area
 163            space when the toolbar is floating */
 164         if (wxIS_KIND_OF(child,wxToolBar))
 165         {
 166             wxToolBar *toolBar = (wxToolBar*) child;
 167             if (toolBar->GetWindowStyle() & wxTB_DOCKABLE)
 168             {
 169                 gtk_signal_connect( GTK_OBJECT(toolBar->m_widget), "child_attached",
 170                     GTK_SIGNAL_FUNC(gtk_toolbar_attached_callback), (gpointer)parent );
 171
 172                 gtk_signal_connect( GTK_OBJECT(toolBar->m_widget), "child_detached",
 173                     GTK_SIGNAL_FUNC(gtk_toolbar_detached_callback), (gpointer)parent );
 174             }
 175         }
 176 #endif // wxUSE_TOOLBAR
 177     }
 178     else
 179     {
 180         /* these are inside the client area */
 181         gtk_pizza_put( GTK_PIZZA(parent->m_wxwindow),
 182                          GTK_WIDGET(child->m_widget),
 183                          child->m_x,
 184                          child->m_y,
 185                          child->m_width,
 186                          child->m_height );
 187     }
 188
 189     /* resize on OnInternalIdle */
 190     parent->GtkUpdateSize();
 191 }
 192
 193 // ----------------------------------------------------------------------------
 194 // wxFrame creation
 195 // ----------------------------------------------------------------------------
 196
 197 void wxFrame::Init()
 198 {
 199     m_menuBarDetached = FALSE;
 200     m_toolBarDetached = FALSE;
 201 }
 202
 203 bool wxFrame::Create( wxWindow *parent,
 204                       wxWindowID id,
 205                       const wxString& title,
 206                       const wxPoint& pos,
 207                       const wxSize& sizeOrig,
 208                       long style,
 209                       const wxString &name )
 210 {
 211     bool rt = wxTopLevelWindow::Create(parent, id, title, pos, sizeOrig,
 212                                        style, name);
 213     m_insertCallback = (wxInsertChildFunction) wxInsertChildInFrame;
 214     return rt;
 215 }
 216
 217 wxFrame::~wxFrame()
 218 {
 219     m_isBeingDeleted = TRUE;
 220     DeleteAllBars();
 221 }
 222
 223 // ----------------------------------------------------------------------------
 224 // overridden wxWindow methods
 225 // ----------------------------------------------------------------------------
 226
 227 void wxFrame::DoGetClientSize( int *width, int *height ) const
 228 {
 229     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 230
 231     wxTopLevelWindow::DoGetClientSize( width, height );
 232
 233     if (height)
 234     {
 235 #if wxUSE_MENUS_NATIVE
 236         /* menu bar */
 237         if (m_frameMenuBar)
 238         {
 239             if (!m_menuBarDetached)
 240                 (*height) -= wxMENU_HEIGHT;
 241             else
 242                 (*height) -= wxPLACE_HOLDER;
 243         }
 244 #endif // wxUSE_MENUS_NATIVE
 245
 246 #if wxUSE_STATUSBAR
 247         /* status bar */
 248         if (m_frameStatusBar && m_frameStatusBar->IsShown())
 249             (*height) -= wxSTATUS_HEIGHT;
 250 #endif // wxUSE_STATUSBAR
 251
 252 #if wxUSE_TOOLBAR
 253         /* tool bar */
 254         if (m_frameToolBar && m_frameToolBar->IsShown())
 255         {
 256             if (m_toolBarDetached)
 257             {
 258                 *height -= wxPLACE_HOLDER;
 259             }
 260             else
 261             {
 262                 int x, y;
 263                 m_frameToolBar->GetSize( &x, &y );
 264                 if ( m_frameToolBar->GetWindowStyle() & wxTB_VERTICAL )
 265                 {
 266                     *width -= x;
 267                 }
 268                 else
 269                 {
 270                     *height -= y;
 271                 }
 272             }
 273         }
 274 #endif // wxUSE_TOOLBAR
 275     }
 276 }
 277
 278 void wxFrame::DoSetClientSize( int width, int height )
 279 {
 280     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 281
 282 #if wxUSE_MENUS_NATIVE
 283         /* menu bar */
 284         if (m_frameMenuBar)
 285         {
 286             if (!m_menuBarDetached)
 287                 height += wxMENU_HEIGHT;
 288             else
 289                 height += wxPLACE_HOLDER;
 290         }
 291 #endif // wxUSE_MENUS_NATIVE
 292
 293 #if wxUSE_STATUSBAR
 294         /* status bar */
 295         if (m_frameStatusBar && m_frameStatusBar->IsShown()) height += wxSTATUS_HEIGHT;
 296 #endif
 297
 298 #if wxUSE_TOOLBAR
 299         /* tool bar */
 300         if (m_frameToolBar && m_frameToolBar->IsShown())
 301         {
 302             if (m_toolBarDetached)
 303             {
 304                 height += wxPLACE_HOLDER;
 305             }
 306             else
 307             {
 308                 int x, y;
 309                 m_frameToolBar->GetSize( &x, &y );
 310                 if ( m_frameToolBar->GetWindowStyle() & wxTB_VERTICAL )
 311                 {
 312                     width += x;
 313                 }
 314                 else
 315                 {
 316                     height += y;
 317                 }
 318             }
 319         }
 320 #endif
 321
 322     wxTopLevelWindow::DoSetClientSize( width, height );
 323 }
 324
 325 void wxFrame::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y),
 326                          int width, int height )
 327 {
 328     // due to a bug in gtk, x,y are always 0
 329     // m_x = x;
 330     // m_y = y;
 331
 332     /* avoid recursions */
 333     if (m_resizing) return;
 334     m_resizing = TRUE;
 335
 336     /* this shouldn't happen: wxFrame, wxMDIParentFrame and wxMDIChildFrame have m_wxwindow */
 337     wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid frame") );
 338
 339     m_width = width;
 340     m_height = height;
 341
 342     /* space occupied by m_frameToolBar and m_frameMenuBar */
 343     int client_area_x_offset = 0,
 344         client_area_y_offset = 0;
 345
 346     /* wxMDIChildFrame derives from wxFrame but it _is_ a wxWindow as it uses
 347        wxWindow::Create to create it's GTK equivalent. m_mainWidget is only
 348        set in wxFrame::Create so it is used to check what kind of frame we
 349        have here. if m_mainWidget is NULL it is a wxMDIChildFrame and so we
 350        skip the part which handles m_frameMenuBar, m_frameToolBar and (most
 351        importantly) m_mainWidget */
 352
 353     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 354     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 355     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_maxWidth;
 356     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_maxHeight;
 357
 358     if (m_mainWidget)
 359     {
 360         /* set size hints */
 361         gint flag = 0; // GDK_HINT_POS;
 362         if ((m_minWidth != -1) || (m_minHeight != -1)) flag |= GDK_HINT_MIN_SIZE;
 363         if ((m_maxWidth != -1) || (m_maxHeight != -1)) flag |= GDK_HINT_MAX_SIZE;
 364         GdkGeometry geom;
 365         geom.min_width = m_minWidth;
 366         geom.min_height = m_minHeight;
 367         geom.max_width = m_maxWidth;
 368         geom.max_height = m_maxHeight;
 369         gtk_window_set_geometry_hints( GTK_WINDOW(m_widget),
 370                                        (GtkWidget*) NULL,
 371                                        &geom,
 372                                        (GdkWindowHints) flag );
 373
 374         /* I revert back to wxGTK's original behaviour. m_mainWidget holds the
 375          * menubar, the toolbar and the client area, which is represented by
 376          * m_wxwindow.
 377          * this hurts in the eye, but I don't want to call SetSize()
 378          * because I don't want to call any non-native functions here. */
 379
 380 #if wxUSE_MENUS_NATIVE
 381         if (m_frameMenuBar)
 382         {
 383             int xx = m_miniEdge;
 384             int yy = m_miniEdge + m_miniTitle;
 385             int ww = m_width  - 2*m_miniEdge;
 386             int hh = wxMENU_HEIGHT;
 387             if (m_menuBarDetached) hh = wxPLACE_HOLDER;
 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             gtk_pizza_set_size( GTK_PIZZA(m_mainWidget),
 393                                   m_frameMenuBar->m_widget,
 394                                   xx, yy, ww, hh );
 395             client_area_y_offset += hh;
 396         }
 397 #endif // wxUSE_MENUS_NATIVE
 398
 399 #if wxUSE_TOOLBAR
 400         if ((m_frameToolBar) && m_frameToolBar->IsShown() &&
 401             (m_frameToolBar->m_widget->parent == m_mainWidget))
 402         {
 403             int xx = m_miniEdge;
 404             int yy = m_miniEdge + m_miniTitle;
 405 #if wxUSE_MENUS_NATIVE
 406             if (m_frameMenuBar)
 407             {
 408                 if (!m_menuBarDetached)
 409                     yy += wxMENU_HEIGHT;
 410                 else
 411                     yy += wxPLACE_HOLDER;
 412             }
 413 #endif // wxUSE_MENUS_NATIVE
 414
 415             m_frameToolBar->m_x = xx;
 416             m_frameToolBar->m_y = yy;
 417
 418             /* don't change the toolbar's reported height/width */
 419             int ww, hh;
 420             if ( m_frameToolBar->GetWindowStyle() & wxTB_VERTICAL )
 421             {
 422                 ww = m_toolBarDetached ? wxPLACE_HOLDER
 423                                        : m_frameToolBar->m_width;
 424                 hh = m_height - 2*m_miniEdge;
 425
 426                 client_area_x_offset += ww;
 427             }
 428             else
 429             {
 430                 ww = m_width - 2*m_miniEdge;
 431                 hh = m_toolBarDetached ? wxPLACE_HOLDER
 432                                        : m_frameToolBar->m_height;
 433
 434                 client_area_y_offset += hh;
 435             }
 436
 437             gtk_pizza_set_size( GTK_PIZZA(m_mainWidget),
 438                                   m_frameToolBar->m_widget,
 439                                   xx, yy, ww, hh );
 440         }
 441 #endif // wxUSE_TOOLBAR
 442
 443         int client_x = client_area_x_offset + m_miniEdge;
 444         int client_y = client_area_y_offset + m_miniEdge + m_miniTitle;
 445         int client_w = m_width - client_area_x_offset - 2*m_miniEdge;
 446         int client_h = m_height - client_area_y_offset- 2*m_miniEdge - m_miniTitle;
 447         gtk_pizza_set_size( GTK_PIZZA(m_mainWidget),
 448                               m_wxwindow,
 449                               client_x, client_y, client_w, client_h );
 450     }
 451     else
 452     {
 453         /* if there is no m_mainWidget between m_widget and m_wxwindow there
 454            is no need to set the size or position of m_wxwindow. */
 455     }
 456
 457 #if wxUSE_STATUSBAR
 458     if (m_frameStatusBar && m_frameStatusBar->IsShown())
 459     {
 460         int xx = 0 + m_miniEdge;
 461         int yy = m_height - wxSTATUS_HEIGHT - m_miniEdge - client_area_y_offset;
 462         int ww = m_width - 2*m_miniEdge;
 463         int hh = wxSTATUS_HEIGHT;
 464         m_frameStatusBar->m_x = xx;
 465         m_frameStatusBar->m_y = yy;
 466         m_frameStatusBar->m_width = ww;
 467         m_frameStatusBar->m_height = hh;
 468         gtk_pizza_set_size( GTK_PIZZA(m_wxwindow),
 469                             m_frameStatusBar->m_widget,
 470                             xx, yy, ww, hh );
 471         gtk_widget_draw( m_frameStatusBar->m_widget, (GdkRectangle*) NULL );
 472     }
 473 #endif // wxUSE_STATUSBAR
 474
 475     m_sizeSet = TRUE;
 476
 477     // send size event to frame
 478     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 479     event.SetEventObject( this );
 480     GetEventHandler()->ProcessEvent( event );
 481
 482 #if wxUSE_STATUSBAR
 483     // send size event to status bar
 484     if (m_frameStatusBar)
 485     {
 486         wxSizeEvent event2( wxSize(m_frameStatusBar->m_width,m_frameStatusBar->m_height), m_frameStatusBar->GetId() );
 487         event2.SetEventObject( m_frameStatusBar );
 488         m_frameStatusBar->GetEventHandler()->ProcessEvent( event2 );
 489     }
 490 #endif // wxUSE_STATUSBAR
 491
 492     m_resizing = FALSE;
 493 }
 494
 495 void wxFrame::OnInternalIdle()
 496 {
 497     wxTopLevelWindow::OnInternalIdle();
 498
 499 #if wxUSE_MENUS_NATIVE
 500     if (m_frameMenuBar) m_frameMenuBar->OnInternalIdle();
 501 #endif // wxUSE_MENUS_NATIVE
 502 #if wxUSE_TOOLBAR
 503     if (m_frameToolBar) m_frameToolBar->OnInternalIdle();
 504 #endif
 505 #if wxUSE_STATUSBAR
 506     if (m_frameStatusBar) m_frameStatusBar->OnInternalIdle();
 507 #endif
 508 }
 509
 510 // ----------------------------------------------------------------------------
 511 // menu/tool/status bar stuff
 512 // ----------------------------------------------------------------------------
 513
 514 #if wxUSE_MENUS_NATIVE
 515
 516 void wxFrame::DetachMenuBar()
 517 {
 518     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 519     wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid frame") );
 520
 521     if ( m_frameMenuBar )
 522     {
 523         m_frameMenuBar->UnsetInvokingWindow( this );
 524
 525         if (m_frameMenuBar->GetWindowStyle() & wxMB_DOCKABLE)
 526         {
 527             gtk_signal_disconnect_by_func( GTK_OBJECT(m_frameMenuBar->m_widget),
 528                 GTK_SIGNAL_FUNC(gtk_menu_attached_callback), (gpointer)this );
 529
 530             gtk_signal_disconnect_by_func( GTK_OBJECT(m_frameMenuBar->m_widget),
 531                 GTK_SIGNAL_FUNC(gtk_menu_detached_callback), (gpointer)this );
 532         }
 533
 534         gtk_container_remove( GTK_CONTAINER(m_mainWidget), m_frameMenuBar->m_widget );
 535         gtk_widget_ref( m_frameMenuBar->m_widget );
 536         gtk_widget_unparent( m_frameMenuBar->m_widget );
 537     }
 538
 539     wxFrameBase::DetachMenuBar();
 540 }
 541
 542 void wxFrame::AttachMenuBar( wxMenuBar *menuBar )
 543 {
 544     wxFrameBase::AttachMenuBar(menuBar);
 545
 546     if (m_frameMenuBar)
 547     {
 548         m_frameMenuBar->SetInvokingWindow( this );
 549
 550         m_frameMenuBar->SetParent(this);
 551         gtk_pizza_put( GTK_PIZZA(m_mainWidget),
 552                 m_frameMenuBar->m_widget,
 553                 m_frameMenuBar->m_x,
 554                 m_frameMenuBar->m_y,
 555                 m_frameMenuBar->m_width,
 556                 m_frameMenuBar->m_height );
 557
 558         if (menuBar->GetWindowStyle() & wxMB_DOCKABLE)
 559         {
 560             gtk_signal_connect( GTK_OBJECT(menuBar->m_widget), "child_attached",
 561                 GTK_SIGNAL_FUNC(gtk_menu_attached_callback), (gpointer)this );
 562
 563             gtk_signal_connect( GTK_OBJECT(menuBar->m_widget), "child_detached",
 564                 GTK_SIGNAL_FUNC(gtk_menu_detached_callback), (gpointer)this );
 565         }
 566
 567         m_frameMenuBar->Show( TRUE );
 568     }
 569
 570     /* resize window in OnInternalIdle */
 571     m_sizeSet = FALSE;
 572 }
 573
 574 #endif // wxUSE_MENUS_NATIVE
 575
 576 #if wxUSE_TOOLBAR
 577
 578 wxToolBar* wxFrame::CreateToolBar( long style, wxWindowID id, const wxString& name )
 579 {
 580     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 581
 582     m_insertInClientArea = FALSE;
 583
 584     m_frameToolBar = wxFrameBase::CreateToolBar( style, id, name );
 585
 586     m_insertInClientArea = TRUE;
 587
 588     m_sizeSet = FALSE;
 589
 590     return m_frameToolBar;
 591 }
 592
 593 void wxFrame::SetToolBar(wxToolBar *toolbar)
 594 {
 595     wxFrameBase::SetToolBar(toolbar);
 596
 597     if (m_frameToolBar)
 598     {
 599         /* insert into toolbar area if not already there */
 600         if ((m_frameToolBar->m_widget->parent) &&
 601             (m_frameToolBar->m_widget->parent != m_mainWidget))
 602         {
 603             GetChildren().DeleteObject( m_frameToolBar );
 604
 605             gtk_widget_reparent( m_frameToolBar->m_widget, m_mainWidget );
 606             GtkUpdateSize();
 607         }
 608     }
 609 }
 610
 611 #endif // wxUSE_TOOLBAR
 612
 613 #if wxUSE_STATUSBAR
 614
 615 wxStatusBar* wxFrame::CreateStatusBar(int number,
 616                                       long style,
 617                                       wxWindowID id,
 618                                       const wxString& name)
 619 {
 620     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 621
 622     // because it will change when toolbar is added
 623     m_sizeSet = FALSE;
 624
 625     return wxFrameBase::CreateStatusBar( number, style, id, name );
 626 }
 627
 628 void wxFrame::PositionStatusBar()
 629 {
 630     if ( !m_frameStatusBar )
 631         return;
 632
 633     m_sizeSet = FALSE;
 634 }
 635 #endif // wxUSE_STATUSBAR
 636