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 #ifndef __WXUNIVERSAL__
  65     IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxTopLevelWindow)
  66 #endif
  67
  68 // ============================================================================
  69 // implementation
  70 // ============================================================================
  71
  72 // ----------------------------------------------------------------------------
  73 // GTK callbacks
  74 // ----------------------------------------------------------------------------
  75
  76 #if wxUSE_MENUS_NATIVE
  77
  78 //-----------------------------------------------------------------------------
  79 // "child_attached" of menu bar
  80 //-----------------------------------------------------------------------------
  81
  82 static void gtk_menu_attached_callback( GtkWidget *WXUNUSED(widget), GtkWidget *WXUNUSED(child), wxFrameGTK *win )
  83 {
  84     if (!win->m_hasVMT) return;
  85
  86     win->m_menuBarDetached = FALSE;
  87     win->GtkUpdateSize();
  88 }
  89
  90 //-----------------------------------------------------------------------------
  91 // "child_detached" of menu bar
  92 //-----------------------------------------------------------------------------
  93
  94 static void gtk_menu_detached_callback( GtkWidget *WXUNUSED(widget), GtkWidget *WXUNUSED(child), wxFrameGTK *win )
  95 {
  96     if (!win->m_hasVMT) return;
  97
  98     win->m_menuBarDetached = TRUE;
  99     win->GtkUpdateSize();
 100 }
 101
 102 #endif // wxUSE_MENUS_NATIVE
 103
 104 #if wxUSE_TOOLBAR
 105 //-----------------------------------------------------------------------------
 106 // "child_attached" of tool bar
 107 //-----------------------------------------------------------------------------
 108
 109 static void gtk_toolbar_attached_callback( GtkWidget *WXUNUSED(widget), GtkWidget *WXUNUSED(child), wxFrameGTK *win )
 110 {
 111     if (!win->m_hasVMT) return;
 112
 113     win->m_toolBarDetached = FALSE;
 114
 115     win->GtkUpdateSize();
 116 }
 117
 118 //-----------------------------------------------------------------------------
 119 // "child_detached" of tool bar
 120 //-----------------------------------------------------------------------------
 121
 122 static void gtk_toolbar_detached_callback( GtkWidget *WXUNUSED(widget), GtkWidget *WXUNUSED(child), wxFrameGTK *win )
 123 {
 124     if (g_isIdle)
 125         wxapp_install_idle_handler();
 126
 127     if (!win->m_hasVMT) return;
 128
 129     win->m_toolBarDetached = TRUE;
 130     win->GtkUpdateSize();
 131 }
 132 #endif // wxUSE_TOOLBAR
 133
 134
 135 // ----------------------------------------------------------------------------
 136 // wxFrameGTK itself
 137 // ----------------------------------------------------------------------------
 138
 139 //-----------------------------------------------------------------------------
 140 // InsertChild for wxFrameGTK
 141 //-----------------------------------------------------------------------------
 142
 143 /* Callback for wxFrameGTK. This very strange beast has to be used because
 144  * C++ has no virtual methods in a constructor. We have to emulate a
 145  * virtual function here as wxWindows requires different ways to insert
 146  * a child in container classes. */
 147
 148 static void wxInsertChildInFrame( wxFrameGTK* parent, wxWindow* child )
 149 {
 150     wxASSERT( GTK_IS_WIDGET(child->m_widget) );
 151
 152     if (!parent->m_insertInClientArea)
 153     {
 154         /* these are outside the client area */
 155         wxFrameGTK* frame = (wxFrameGTK*) parent;
 156         gtk_pizza_put( GTK_PIZZA(frame->m_mainWidget),
 157                          GTK_WIDGET(child->m_widget),
 158                          child->m_x,
 159                          child->m_y,
 160                          child->m_width,
 161                          child->m_height );
 162
 163 #if wxUSE_TOOLBAR_NATIVE
 164         /* we connect to these events for recalculating the client area
 165            space when the toolbar is floating */
 166         if (wxIS_KIND_OF(child,wxToolBar))
 167         {
 168             wxToolBar *toolBar = (wxToolBar*) child;
 169             if (toolBar->GetWindowStyle() & wxTB_DOCKABLE)
 170             {
 171                 gtk_signal_connect( GTK_OBJECT(toolBar->m_widget), "child_attached",
 172                     GTK_SIGNAL_FUNC(gtk_toolbar_attached_callback), (gpointer)parent );
 173
 174                 gtk_signal_connect( GTK_OBJECT(toolBar->m_widget), "child_detached",
 175                     GTK_SIGNAL_FUNC(gtk_toolbar_detached_callback), (gpointer)parent );
 176             }
 177         }
 178 #endif // wxUSE_TOOLBAR
 179     }
 180     else
 181     {
 182         /* these are inside the client area */
 183         gtk_pizza_put( GTK_PIZZA(parent->m_wxwindow),
 184                          GTK_WIDGET(child->m_widget),
 185                          child->m_x,
 186                          child->m_y,
 187                          child->m_width,
 188                          child->m_height );
 189     }
 190
 191     /* resize on OnInternalIdle */
 192     parent->GtkUpdateSize();
 193 }
 194
 195 // ----------------------------------------------------------------------------
 196 // wxFrameGTK creation
 197 // ----------------------------------------------------------------------------
 198
 199 void wxFrameGTK::Init()
 200 {
 201     m_menuBarDetached = FALSE;
 202     m_toolBarDetached = FALSE;
 203 }
 204
 205 bool wxFrameGTK::Create( wxWindow *parent,
 206                       wxWindowID id,
 207                       const wxString& title,
 208                       const wxPoint& pos,
 209                       const wxSize& sizeOrig,
 210                       long style,
 211                       const wxString &name )
 212 {
 213     bool rt = wxTopLevelWindow::Create(parent, id, title, pos, sizeOrig,
 214                                        style, name);
 215     m_insertCallback = (wxInsertChildFunction) wxInsertChildInFrame;
 216     return rt;
 217 }
 218
 219 wxFrameGTK::~wxFrameGTK()
 220 {
 221     m_isBeingDeleted = TRUE;
 222     DeleteAllBars();
 223 }
 224
 225 // ----------------------------------------------------------------------------
 226 // overridden wxWindow methods
 227 // ----------------------------------------------------------------------------
 228
 229 void wxFrameGTK::DoGetClientSize( int *width, int *height ) const
 230 {
 231     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 232
 233     wxTopLevelWindow::DoGetClientSize( width, height );
 234
 235     if (height)
 236     {
 237 #if wxUSE_MENUS_NATIVE
 238         /* menu bar */
 239         if (m_frameMenuBar)
 240         {
 241             if (!m_menuBarDetached)
 242                 (*height) -= wxMENU_HEIGHT;
 243             else
 244                 (*height) -= wxPLACE_HOLDER;
 245         }
 246 #endif // wxUSE_MENUS_NATIVE
 247
 248 #if wxUSE_STATUSBAR
 249         /* status bar */
 250         if (m_frameStatusBar && m_frameStatusBar->IsShown())
 251             (*height) -= wxSTATUS_HEIGHT;
 252 #endif // wxUSE_STATUSBAR
 253
 254 #if wxUSE_TOOLBAR
 255         /* tool bar */
 256         if (m_frameToolBar && m_frameToolBar->IsShown())
 257         {
 258             if (m_toolBarDetached)
 259             {
 260                 *height -= wxPLACE_HOLDER;
 261             }
 262             else
 263             {
 264                 int x, y;
 265                 m_frameToolBar->GetSize( &x, &y );
 266                 if ( m_frameToolBar->GetWindowStyle() & wxTB_VERTICAL )
 267                 {
 268                     *width -= x;
 269                 }
 270                 else
 271                 {
 272                     *height -= y;
 273                 }
 274             }
 275         }
 276 #endif // wxUSE_TOOLBAR
 277     }
 278 }
 279
 280 void wxFrameGTK::DoSetClientSize( int width, int height )
 281 {
 282     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 283
 284 #if wxUSE_MENUS_NATIVE
 285         /* menu bar */
 286         if (m_frameMenuBar)
 287         {
 288             if (!m_menuBarDetached)
 289                 height += wxMENU_HEIGHT;
 290             else
 291                 height += wxPLACE_HOLDER;
 292         }
 293 #endif // wxUSE_MENUS_NATIVE
 294
 295 #if wxUSE_STATUSBAR
 296         /* status bar */
 297         if (m_frameStatusBar && m_frameStatusBar->IsShown()) height += wxSTATUS_HEIGHT;
 298 #endif
 299
 300 #if wxUSE_TOOLBAR
 301         /* tool bar */
 302         if (m_frameToolBar && m_frameToolBar->IsShown())
 303         {
 304             if (m_toolBarDetached)
 305             {
 306                 height += wxPLACE_HOLDER;
 307             }
 308             else
 309             {
 310                 int x, y;
 311                 m_frameToolBar->GetSize( &x, &y );
 312                 if ( m_frameToolBar->GetWindowStyle() & wxTB_VERTICAL )
 313                 {
 314                     width += x;
 315                 }
 316                 else
 317                 {
 318                     height += y;
 319                 }
 320             }
 321         }
 322 #endif
 323
 324     wxTopLevelWindow::DoSetClientSize( width, height );
 325 }
 326
 327 void wxFrameGTK::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y),
 328                          int width, int height )
 329 {
 330     // due to a bug in gtk, x,y are always 0
 331     // m_x = x;
 332     // m_y = y;
 333
 334     /* avoid recursions */
 335     if (m_resizing) return;
 336     m_resizing = TRUE;
 337
 338     /* this shouldn't happen: wxFrameGTK, wxMDIParentFrame and wxMDIChildFrame have m_wxwindow */
 339     wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid frame") );
 340
 341     m_width = width;
 342     m_height = height;
 343
 344     /* space occupied by m_frameToolBar and m_frameMenuBar */
 345     int client_area_x_offset = 0,
 346         client_area_y_offset = 0;
 347
 348     /* wxMDIChildFrame derives from wxFrameGTK but it _is_ a wxWindow as it uses
 349        wxWindow::Create to create it's GTK equivalent. m_mainWidget is only
 350        set in wxFrameGTK::Create so it is used to check what kind of frame we
 351        have here. if m_mainWidget is NULL it is a wxMDIChildFrame and so we
 352        skip the part which handles m_frameMenuBar, m_frameToolBar and (most
 353        importantly) m_mainWidget */
 354
 355     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 356     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 357     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_maxWidth;
 358     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_maxHeight;
 359
 360     if (m_mainWidget)
 361     {
 362         /* set size hints */
 363         gint flag = 0; // GDK_HINT_POS;
 364         if ((m_minWidth != -1) || (m_minHeight != -1)) flag |= GDK_HINT_MIN_SIZE;
 365         if ((m_maxWidth != -1) || (m_maxHeight != -1)) flag |= GDK_HINT_MAX_SIZE;
 366         GdkGeometry geom;
 367         geom.min_width = m_minWidth;
 368         geom.min_height = m_minHeight;
 369         geom.max_width = m_maxWidth;
 370         geom.max_height = m_maxHeight;
 371         gtk_window_set_geometry_hints( GTK_WINDOW(m_widget),
 372                                        (GtkWidget*) NULL,
 373                                        &geom,
 374                                        (GdkWindowHints) flag );
 375
 376         /* I revert back to wxGTK's original behaviour. m_mainWidget holds the
 377          * menubar, the toolbar and the client area, which is represented by
 378          * m_wxwindow.
 379          * 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 wxUSE_MENUS_NATIVE
 383         if (m_frameMenuBar)
 384         {
 385             int xx = m_miniEdge;
 386             int yy = m_miniEdge + m_miniTitle;
 387             int ww = m_width  - 2*m_miniEdge;
 388             int hh = wxMENU_HEIGHT;
 389             if (m_menuBarDetached) hh = wxPLACE_HOLDER;
 390             m_frameMenuBar->m_x = xx;
 391             m_frameMenuBar->m_y = yy;
 392             m_frameMenuBar->m_width = ww;
 393             m_frameMenuBar->m_height = hh;
 394             gtk_pizza_set_size( GTK_PIZZA(m_mainWidget),
 395                                   m_frameMenuBar->m_widget,
 396                                   xx, yy, ww, hh );
 397             client_area_y_offset += hh;
 398         }
 399 #endif // wxUSE_MENUS_NATIVE
 400
 401 #if wxUSE_TOOLBAR
 402         if ((m_frameToolBar) && m_frameToolBar->IsShown() &&
 403             (m_frameToolBar->m_widget->parent == m_mainWidget))
 404         {
 405             int xx = m_miniEdge;
 406             int yy = m_miniEdge + m_miniTitle;
 407 #if wxUSE_MENUS_NATIVE
 408             if (m_frameMenuBar)
 409             {
 410                 if (!m_menuBarDetached)
 411                     yy += wxMENU_HEIGHT;
 412                 else
 413                     yy += wxPLACE_HOLDER;
 414             }
 415 #endif // wxUSE_MENUS_NATIVE
 416
 417             m_frameToolBar->m_x = xx;
 418             m_frameToolBar->m_y = yy;
 419
 420             /* don't change the toolbar's reported height/width */
 421             int ww, hh;
 422             if ( m_frameToolBar->GetWindowStyle() & wxTB_VERTICAL )
 423             {
 424                 ww = m_toolBarDetached ? wxPLACE_HOLDER
 425                                        : m_frameToolBar->m_width;
 426                 hh = m_height - 2*m_miniEdge;
 427
 428                 client_area_x_offset += ww;
 429             }
 430             else
 431             {
 432                 ww = m_width - 2*m_miniEdge;
 433                 hh = m_toolBarDetached ? wxPLACE_HOLDER
 434                                        : m_frameToolBar->m_height;
 435
 436                 client_area_y_offset += hh;
 437             }
 438
 439             gtk_pizza_set_size( GTK_PIZZA(m_mainWidget),
 440                                   m_frameToolBar->m_widget,
 441                                   xx, yy, ww, hh );
 442         }
 443 #endif // wxUSE_TOOLBAR
 444
 445         int client_x = client_area_x_offset + m_miniEdge;
 446         int client_y = client_area_y_offset + m_miniEdge + m_miniTitle;
 447         int client_w = m_width - client_area_x_offset - 2*m_miniEdge;
 448         int client_h = m_height - client_area_y_offset- 2*m_miniEdge - m_miniTitle;
 449         gtk_pizza_set_size( GTK_PIZZA(m_mainWidget),
 450                               m_wxwindow,
 451                               client_x, client_y, client_w, client_h );
 452     }
 453     else
 454     {
 455         /* if there is no m_mainWidget between m_widget and m_wxwindow there
 456            is no need to set the size or position of m_wxwindow. */
 457     }
 458
 459 #if wxUSE_STATUSBAR
 460     if (m_frameStatusBar && m_frameStatusBar->IsShown())
 461     {
 462         int xx = 0 + m_miniEdge;
 463         int yy = m_height - wxSTATUS_HEIGHT - m_miniEdge - client_area_y_offset;
 464         int ww = m_width - 2*m_miniEdge;
 465         int hh = wxSTATUS_HEIGHT;
 466         m_frameStatusBar->m_x = xx;
 467         m_frameStatusBar->m_y = yy;
 468         m_frameStatusBar->m_width = ww;
 469         m_frameStatusBar->m_height = hh;
 470         gtk_pizza_set_size( GTK_PIZZA(m_wxwindow),
 471                             m_frameStatusBar->m_widget,
 472                             xx, yy, ww, hh );
 473         gtk_widget_draw( m_frameStatusBar->m_widget, (GdkRectangle*) NULL );
 474     }
 475 #endif // wxUSE_STATUSBAR
 476
 477     m_sizeSet = TRUE;
 478
 479     // send size event to frame
 480     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 481     event.SetEventObject( this );
 482     GetEventHandler()->ProcessEvent( event );
 483
 484 #if wxUSE_STATUSBAR
 485     // send size event to status bar
 486     if (m_frameStatusBar)
 487     {
 488         wxSizeEvent event2( wxSize(m_frameStatusBar->m_width,m_frameStatusBar->m_height), m_frameStatusBar->GetId() );
 489         event2.SetEventObject( m_frameStatusBar );
 490         m_frameStatusBar->GetEventHandler()->ProcessEvent( event2 );
 491     }
 492 #endif // wxUSE_STATUSBAR
 493
 494     m_resizing = FALSE;
 495 }
 496
 497 void wxFrameGTK::OnInternalIdle()
 498 {
 499     wxTopLevelWindow::OnInternalIdle();
 500
 501 #if wxUSE_MENUS_NATIVE
 502     if (m_frameMenuBar) m_frameMenuBar->OnInternalIdle();
 503 #endif // wxUSE_MENUS_NATIVE
 504 #if wxUSE_TOOLBAR
 505     if (m_frameToolBar) m_frameToolBar->OnInternalIdle();
 506 #endif
 507 #if wxUSE_STATUSBAR
 508     if (m_frameStatusBar) m_frameStatusBar->OnInternalIdle();
 509 #endif
 510 }
 511
 512 // ----------------------------------------------------------------------------
 513 // menu/tool/status bar stuff
 514 // ----------------------------------------------------------------------------
 515
 516 #if wxUSE_MENUS_NATIVE
 517
 518 void wxFrameGTK::DetachMenuBar()
 519 {
 520     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 521     wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid frame") );
 522
 523     if ( m_frameMenuBar )
 524     {
 525         m_frameMenuBar->UnsetInvokingWindow( this );
 526
 527         if (m_frameMenuBar->GetWindowStyle() & wxMB_DOCKABLE)
 528         {
 529             gtk_signal_disconnect_by_func( GTK_OBJECT(m_frameMenuBar->m_widget),
 530                 GTK_SIGNAL_FUNC(gtk_menu_attached_callback), (gpointer)this );
 531
 532             gtk_signal_disconnect_by_func( GTK_OBJECT(m_frameMenuBar->m_widget),
 533                 GTK_SIGNAL_FUNC(gtk_menu_detached_callback), (gpointer)this );
 534         }
 535
 536         gtk_container_remove( GTK_CONTAINER(m_mainWidget), m_frameMenuBar->m_widget );
 537         gtk_widget_ref( m_frameMenuBar->m_widget );
 538         gtk_widget_unparent( m_frameMenuBar->m_widget );
 539     }
 540
 541     wxFrameBase::DetachMenuBar();
 542 }
 543
 544 void wxFrameGTK::AttachMenuBar( wxMenuBar *menuBar )
 545 {
 546     wxFrameBase::AttachMenuBar(menuBar);
 547
 548     if (m_frameMenuBar)
 549     {
 550         m_frameMenuBar->SetInvokingWindow( this );
 551
 552         m_frameMenuBar->SetParent(this);
 553         gtk_pizza_put( GTK_PIZZA(m_mainWidget),
 554                 m_frameMenuBar->m_widget,
 555                 m_frameMenuBar->m_x,
 556                 m_frameMenuBar->m_y,
 557                 m_frameMenuBar->m_width,
 558                 m_frameMenuBar->m_height );
 559
 560         if (menuBar->GetWindowStyle() & wxMB_DOCKABLE)
 561         {
 562             gtk_signal_connect( GTK_OBJECT(menuBar->m_widget), "child_attached",
 563                 GTK_SIGNAL_FUNC(gtk_menu_attached_callback), (gpointer)this );
 564
 565             gtk_signal_connect( GTK_OBJECT(menuBar->m_widget), "child_detached",
 566                 GTK_SIGNAL_FUNC(gtk_menu_detached_callback), (gpointer)this );
 567         }
 568
 569         m_frameMenuBar->Show( TRUE );
 570     }
 571
 572     /* resize window in OnInternalIdle */
 573     m_sizeSet = FALSE;
 574 }
 575
 576 #endif // wxUSE_MENUS_NATIVE
 577
 578 #if wxUSE_TOOLBAR
 579
 580 wxToolBar* wxFrameGTK::CreateToolBar( long style, wxWindowID id, const wxString& name )
 581 {
 582     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 583
 584     m_insertInClientArea = FALSE;
 585
 586     m_frameToolBar = wxFrameBase::CreateToolBar( style, id, name );
 587
 588     m_insertInClientArea = TRUE;
 589
 590     m_sizeSet = FALSE;
 591
 592     return m_frameToolBar;
 593 }
 594
 595 void wxFrameGTK::SetToolBar(wxToolBar *toolbar)
 596 {
 597     wxFrameBase::SetToolBar(toolbar);
 598
 599     if (m_frameToolBar)
 600     {
 601         /* insert into toolbar area if not already there */
 602         if ((m_frameToolBar->m_widget->parent) &&
 603             (m_frameToolBar->m_widget->parent != m_mainWidget))
 604         {
 605             GetChildren().DeleteObject( m_frameToolBar );
 606
 607             gtk_widget_reparent( m_frameToolBar->m_widget, m_mainWidget );
 608             GtkUpdateSize();
 609         }
 610     }
 611 }
 612
 613 #endif // wxUSE_TOOLBAR
 614
 615 #if wxUSE_STATUSBAR
 616
 617 wxStatusBar* wxFrameGTK::CreateStatusBar(int number,
 618                                       long style,
 619                                       wxWindowID id,
 620                                       const wxString& name)
 621 {
 622     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 623
 624     // because it will change when toolbar is added
 625     m_sizeSet = FALSE;
 626
 627     return wxFrameBase::CreateStatusBar( number, style, id, name );
 628 }
 629
 630 void wxFrameGTK::PositionStatusBar()
 631 {
 632     if ( !m_frameStatusBar )
 633         return;
 634
 635     m_sizeSet = FALSE;
 636 }
 637 #endif // wxUSE_STATUSBAR
 638