src/stubs/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        windows.cpp
   3 // Purpose:     wxWindow
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "window.h"
  14 #endif
  15
  16 #include "wx/setup.h"
  17 #include "wx/menu.h"
  18 #include "wx/dc.h"
  19 #include "wx/dcclient.h"
  20 #include "wx/utils.h"
  21 #include "wx/app.h"
  22 #include "wx/panel.h"
  23 #include "wx/layout.h"
  24 #include "wx/dialog.h"
  25 #include "wx/listbox.h"
  26 #include "wx/button.h"
  27 #include "wx/settings.h"
  28 #include "wx/msgdlg.h"
  29 #include "wx/frame.h"
  30
  31 #include "wx/menuitem.h"
  32 #include "wx/log.h"
  33
  34 #if  wxUSE_DRAG_AND_DROP
  35 #include "wx/dnd.h"
  36 #endif
  37
  38 #include <string.h>
  39
  40 extern wxList wxPendingDelete;
  41
  42 #if !USE_SHARED_LIBRARY
  43 IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxEvtHandler)
  44
  45 BEGIN_EVENT_TABLE(wxWindow, wxEvtHandler)
  46   EVT_CHAR(wxWindow::OnChar)
  47   EVT_KEY_DOWN(wxWindow::OnKeyDown)
  48   EVT_KEY_UP(wxWindow::OnKeyUp)
  49   EVT_ERASE_BACKGROUND(wxWindow::OnEraseBackground)
  50   EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
  51   EVT_INIT_DIALOG(wxWindow::OnInitDialog)
  52   EVT_IDLE(wxWindow::OnIdle)
  53 END_EVENT_TABLE()
  54
  55 #endif
  56
  57
  58 // Constructor
  59 wxWindow::wxWindow()
  60 {
  61     // Generic
  62     m_windowId = 0;
  63     m_windowStyle = 0;
  64     m_windowParent = NULL;
  65     m_windowEventHandler = this;
  66     m_windowName = "";
  67     m_windowCursor = *wxSTANDARD_CURSOR;
  68     m_children = new wxList;
  69     m_constraints = NULL;
  70     m_constraintsInvolvedIn = NULL;
  71     m_windowSizer = NULL;
  72     m_sizerParent = NULL;
  73     m_autoLayout = FALSE;
  74     m_windowValidator = NULL;
  75     m_defaultItem = NULL;
  76     m_returnCode = 0;
  77     m_caretWidth = 0; m_caretHeight = 0;
  78     m_caretEnabled = FALSE;
  79     m_caretShown = FALSE;
  80     m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE) ;
  81     // m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW) ; ;
  82     m_foregroundColour = *wxBLACK;
  83
  84 #if  wxUSE_DRAG_AND_DROP
  85     m_pDropTarget = NULL;
  86 #endif
  87 }
  88
  89 // Destructor
  90 wxWindow::~wxWindow()
  91 {
  92         // Have to delete constraints/sizer FIRST otherwise
  93         // sizers may try to look at deleted windows as they
  94         // delete themselves.
  95 #if wxUSE_CONSTRAINTS
  96     DeleteRelatedConstraints();
  97     if (m_constraints)
  98     {
  99         // This removes any dangling pointers to this window
 100         // in other windows' constraintsInvolvedIn lists.
 101         UnsetConstraints(m_constraints);
 102         delete m_constraints;
 103         m_constraints = NULL;
 104     }
 105     if (m_windowSizer)
 106     {
 107         delete m_windowSizer;
 108         m_windowSizer = NULL;
 109     }
 110     // If this is a child of a sizer, remove self from parent
 111     if (m_sizerParent)
 112         m_sizerParent->RemoveChild((wxWindow *)this);
 113 #endif
 114
 115     if (m_windowParent)
 116         m_windowParent->RemoveChild(this);
 117
 118     DestroyChildren();
 119
 120     // TODO: destroy the window
 121
 122     delete m_children;
 123     m_children = NULL;
 124
 125     // Just in case the window has been Closed, but
 126     // we're then deleting immediately: don't leave
 127     // dangling pointers.
 128     wxPendingDelete.DeleteObject(this);
 129
 130     if ( m_windowValidator )
 131             delete m_windowValidator;
 132 }
 133
 134 // Destroy the window (delayed, if a managed window)
 135 bool wxWindow::Destroy()
 136 {
 137     delete this;
 138     return TRUE;
 139 }
 140
 141 // Constructor
 142 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 143            const wxPoint& pos,
 144            const wxSize& size,
 145            long style,
 146            const wxString& name)
 147 {
 148     // Generic
 149     m_windowId = 0;
 150     m_windowStyle = 0;
 151     m_windowParent = NULL;
 152     m_windowEventHandler = this;
 153     m_windowName = "";
 154     m_windowCursor = *wxSTANDARD_CURSOR;
 155     m_constraints = NULL;
 156     m_constraintsInvolvedIn = NULL;
 157     m_windowSizer = NULL;
 158     m_sizerParent = NULL;
 159     m_autoLayout = FALSE;
 160     m_windowValidator = NULL;
 161
 162 #if wxUSE_DRAG_AND_DROP
 163     m_pDropTarget = NULL;
 164 #endif
 165
 166     m_caretWidth = 0; m_caretHeight = 0;
 167     m_caretEnabled = FALSE;
 168     m_caretShown = FALSE;
 169     m_minSizeX = -1;
 170     m_minSizeY = -1;
 171     m_maxSizeX = -1;
 172     m_maxSizeY = -1;
 173     m_defaultItem = NULL;
 174     m_windowParent = NULL;
 175     if (!parent)
 176         return FALSE;
 177
 178     if (parent) parent->AddChild(this);
 179
 180     m_returnCode = 0;
 181
 182     SetName(name);
 183
 184     if ( id == -1 )
 185         m_windowId = (int)NewControlId();
 186     else
 187         m_windowId = id;
 188
 189     // m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW) ; ;
 190     m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE) ;
 191     m_foregroundColour = *wxBLACK;
 192
 193     m_windowStyle = style;
 194
 195     if ( id == -1 )
 196         m_windowId = (int)NewControlId();
 197     else
 198         m_windowId = id;
 199
 200     // TODO: create the window
 201
 202     return TRUE;
 203 }
 204
 205 void wxWindow::SetFocus()
 206 {
 207     // TODO
 208 }
 209
 210 void wxWindow::Enable(bool enable)
 211 {
 212     // TODO
 213 }
 214
 215 void wxWindow::CaptureMouse()
 216 {
 217     // TODO
 218 }
 219
 220 void wxWindow::ReleaseMouse()
 221 {
 222     // TODO
 223 }
 224
 225 // Push/pop event handler (i.e. allow a chain of event handlers
 226 // be searched)
 227 void wxWindow::PushEventHandler(wxEvtHandler *handler)
 228 {
 229         handler->SetNextHandler(GetEventHandler());
 230         SetEventHandler(handler);
 231 }
 232
 233 wxEvtHandler *wxWindow::PopEventHandler(bool deleteHandler)
 234 {
 235         if ( GetEventHandler() )
 236         {
 237                 wxEvtHandler *handlerA = GetEventHandler();
 238                 wxEvtHandler *handlerB = handlerA->GetNextHandler();
 239                 handlerA->SetNextHandler(NULL);
 240                 SetEventHandler(handlerB);
 241                 if ( deleteHandler )
 242                 {
 243                         delete handlerA;
 244                         return NULL;
 245                 }
 246                 else
 247                         return handlerA;
 248         }
 249         else
 250                 return NULL;
 251 }
 252
 253 #if    wxUSE_DRAG_AND_DROP
 254
 255 void wxWindow::SetDropTarget(wxDropTarget *pDropTarget)
 256 {
 257   if ( m_pDropTarget != 0 ) {
 258     delete m_pDropTarget;
 259   }
 260
 261   m_pDropTarget = pDropTarget;
 262   if ( m_pDropTarget != 0 )
 263   {
 264     // TODO
 265   }
 266 }
 267
 268 #endif
 269
 270 // Old style file-manager drag&drop
 271 void wxWindow::DragAcceptFiles(bool accept)
 272 {
 273     // TODO
 274 }
 275
 276 // Get total size
 277 void wxWindow::GetSize(int *x, int *y) const
 278 {
 279     // TODO
 280 }
 281
 282 void wxWindow::GetPosition(int *x, int *y) const
 283 {
 284     // TODO
 285 }
 286
 287 void wxWindow::ScreenToClient(int *x, int *y) const
 288 {
 289     // TODO
 290 }
 291
 292 void wxWindow::ClientToScreen(int *x, int *y) const
 293 {
 294     // TODO
 295 }
 296
 297 void wxWindow::SetCursor(const wxCursor& cursor)
 298 {
 299   m_windowCursor = cursor;
 300   if (m_windowCursor.Ok())
 301   {
 302     // TODO
 303   }
 304 }
 305
 306
 307 // Get size *available for subwindows* i.e. excluding menu bar etc.
 308 void wxWindow::GetClientSize(int *x, int *y) const
 309 {
 310     // TODO
 311 }
 312
 313 void wxWindow::SetSize(int x, int y, int width, int height, int sizeFlags)
 314 {
 315     // TODO
 316 }
 317
 318 void wxWindow::SetClientSize(int width, int height)
 319 {
 320     // TODO
 321 }
 322
 323 // For implementation purposes - sometimes decorations make the client area
 324 // smaller
 325 wxPoint wxWindow::GetClientAreaOrigin() const
 326 {
 327     return wxPoint(0, 0);
 328 }
 329
 330 // Makes an adjustment to the window position (for example, a frame that has
 331 // a toolbar that it manages itself).
 332 void wxWindow::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags)
 333 {
 334     if (((sizeFlags & wxSIZE_NO_ADJUSTMENTS) == 0) && GetParent())
 335     {
 336         wxPoint pt(GetParent()->GetClientAreaOrigin());
 337         x += pt.x; y += pt.y;
 338     }
 339 }
 340
 341 bool wxWindow::Show(bool show)
 342 {
 343     // TODO
 344     return FALSE;
 345 }
 346
 347 bool wxWindow::IsShown() const
 348 {
 349     // TODO
 350     return FALSE;
 351 }
 352
 353 int wxWindow::GetCharHeight() const
 354 {
 355     // TODO
 356     return 0;
 357 }
 358
 359 int wxWindow::GetCharWidth() const
 360 {
 361     // TODO
 362     return 0;
 363 }
 364
 365 void wxWindow::GetTextExtent(const wxString& string, int *x, int *y,
 366                            int *descent, int *externalLeading, const wxFont *theFont, bool) const
 367 {
 368   wxFont *fontToUse = (wxFont *)theFont;
 369   if (!fontToUse)
 370     fontToUse = (wxFont *) & m_windowFont;
 371
 372     // TODO
 373 }
 374
 375 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
 376 {
 377     // TODO
 378 }
 379
 380 // Responds to colour changes: passes event on to children.
 381 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
 382 {
 383     wxNode *node = GetChildren().First();
 384     while ( node )
 385     {
 386         // Only propagate to non-top-level windows
 387         wxWindow *win = (wxWindow *)node->Data();
 388         if ( win->GetParent() )
 389         {
 390             wxSysColourChangedEvent event2;
 391             event.m_eventObject = win;
 392             win->GetEventHandler()->ProcessEvent(event2);
 393         }
 394
 395         node = node->Next();
 396     }
 397 }
 398
 399 // This can be called by the app (or wxWindows) to do default processing for the current
 400 // event. Save message/event info in wxWindow so they can be used in this function.
 401 long wxWindow::Default()
 402 {
 403     // TODO
 404     return 0;
 405 }
 406
 407 void wxWindow::InitDialog()
 408 {
 409   wxInitDialogEvent event(GetId());
 410   event.SetEventObject( this );
 411   GetEventHandler()->ProcessEvent(event);
 412 }
 413
 414 // Default init dialog behaviour is to transfer data to window
 415 void wxWindow::OnInitDialog(wxInitDialogEvent& event)
 416 {
 417   TransferDataToWindow();
 418 }
 419
 420 // Caret manipulation
 421 void wxWindow::CreateCaret(int w, int h)
 422 {
 423   m_caretWidth = w;
 424   m_caretHeight = h;
 425   m_caretEnabled = TRUE;
 426 }
 427
 428 void wxWindow::CreateCaret(const wxBitmap *WXUNUSED(bitmap))
 429 {
 430     // TODO
 431 }
 432
 433 void wxWindow::ShowCaret(bool show)
 434 {
 435     // TODO
 436 }
 437
 438 void wxWindow::DestroyCaret()
 439 {
 440     // TODO
 441     m_caretEnabled = FALSE;
 442 }
 443
 444 void wxWindow::SetCaretPos(int x, int y)
 445 {
 446     // TODO
 447 }
 448
 449 void wxWindow::GetCaretPos(int *x, int *y) const
 450 {
 451     // TODO
 452 }
 453
 454 wxWindow *wxGetActiveWindow()
 455 {
 456     // TODO
 457     return NULL;
 458 }
 459
 460 void wxWindow::SetSizeHints(int minW, int minH, int maxW, int maxH, int WXUNUSED(incW), int WXUNUSED(incH))
 461 {
 462   m_minSizeX = minW;
 463   m_minSizeY = minH;
 464   m_maxSizeX = maxW;
 465   m_maxSizeY = maxH;
 466 }
 467
 468 void wxWindow::Centre(int direction)
 469 {
 470   int x, y, width, height, panel_width, panel_height, new_x, new_y;
 471
 472   wxWindow *father = (wxWindow *)GetParent();
 473   if (!father)
 474     return;
 475
 476   father->GetClientSize(&panel_width, &panel_height);
 477   GetSize(&width, &height);
 478   GetPosition(&x, &y);
 479
 480   new_x = -1;
 481   new_y = -1;
 482
 483   if (direction & wxHORIZONTAL)
 484     new_x = (int)((panel_width - width)/2);
 485
 486   if (direction & wxVERTICAL)
 487     new_y = (int)((panel_height - height)/2);
 488
 489   SetSize(new_x, new_y, -1, -1);
 490
 491 }
 492
 493 // Coordinates relative to the window
 494 void wxWindow::WarpPointer (int x_pos, int y_pos)
 495 {
 496     // TODO
 497 }
 498
 499 void wxWindow::OnEraseBackground(wxEraseEvent& event)
 500 {
 501     // TODO
 502     Default();
 503 }
 504
 505 int wxWindow::GetScrollPos(int orient) const
 506 {
 507     // TODO
 508     return 0;
 509 }
 510
 511 // This now returns the whole range, not just the number
 512 // of positions that we can scroll.
 513 int wxWindow::GetScrollRange(int orient) const
 514 {
 515     // TODO
 516     return 0;
 517 }
 518
 519 int wxWindow::GetScrollThumb(int orient) const
 520 {
 521     // TODO
 522     return 0;
 523 }
 524
 525 void wxWindow::SetScrollPos(int orient, int pos, bool refresh)
 526 {
 527     // TODO
 528     return;
 529 }
 530
 531 // New function that will replace some of the above.
 532 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 533     int range, bool refresh)
 534 {
 535     // TODO
 536 }
 537
 538 // Does a physical scroll
 539 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 540 {
 541     // TODO
 542     return;
 543 }
 544
 545 void wxWindow::SetFont(const wxFont& font)
 546 {
 547     m_windowFont = font;
 548
 549     if (!m_windowFont.Ok())
 550             return;
 551     // TODO
 552 }
 553
 554 void wxWindow::OnChar(wxKeyEvent& event)
 555 {
 556 /* ??
 557     if ( event.KeyCode() == WXK_TAB ) {
 558         // propagate the TABs to the parent - it's up to it to decide what
 559         // to do with it
 560         if ( GetParent() ) {
 561             if ( GetParent()->ProcessEvent(event) )
 562                 return;
 563         }
 564     }
 565 */
 566     Default();
 567 }
 568
 569 void wxWindow::OnKeyDown(wxKeyEvent& event)
 570 {
 571     Default();
 572 }
 573
 574 void wxWindow::OnKeyUp(wxKeyEvent& event)
 575 {
 576     Default();
 577 }
 578
 579 void wxWindow::OnPaint(wxPaintEvent& event)
 580 {
 581         Default();
 582 }
 583
 584 bool wxWindow::IsEnabled() const
 585 {
 586     // TODO
 587     return FALSE;
 588 }
 589
 590 // Dialog support: override these and call
 591 // base class members to add functionality
 592 // that can't be done using validators.
 593 // NOTE: these functions assume that controls
 594 // are direct children of this window, not grandchildren
 595 // or other levels of descendant.
 596
 597 // Transfer values to controls. If returns FALSE,
 598 // it's an application error (pops up a dialog)
 599 bool wxWindow::TransferDataToWindow()
 600 {
 601         wxNode *node = GetChildren().First();
 602         while ( node )
 603         {
 604                 wxWindow *child = (wxWindow *)node->Data();
 605                 if ( child->GetValidator() &&
 606                      !child->GetValidator()->TransferToWindow() )
 607                 {
 608                         wxMessageBox("Application Error", "Could not transfer data to window", wxOK|wxICON_EXCLAMATION);
 609                         return FALSE;
 610                 }
 611
 612                 node = node->Next();
 613         }
 614         return TRUE;
 615 }
 616
 617 // Transfer values from controls. If returns FALSE,
 618 // validation failed: don't quit
 619 bool wxWindow::TransferDataFromWindow()
 620 {
 621         wxNode *node = GetChildren().First();
 622         while ( node )
 623         {
 624                 wxWindow *child = (wxWindow *)node->Data();
 625                 if ( child->GetValidator() && !child->GetValidator()->TransferFromWindow() )
 626                 {
 627                         return FALSE;
 628                 }
 629
 630                 node = node->Next();
 631         }
 632         return TRUE;
 633 }
 634
 635 bool wxWindow::Validate()
 636 {
 637         wxNode *node = GetChildren().First();
 638         while ( node )
 639         {
 640                 wxWindow *child = (wxWindow *)node->Data();
 641                 if ( child->GetValidator() && /* child->GetValidator()->Ok() && */ !child->GetValidator()->Validate(this) )
 642                 {
 643                         return FALSE;
 644                 }
 645
 646                 node = node->Next();
 647         }
 648         return TRUE;
 649 }
 650
 651 // Get the window with the focus
 652 wxWindow *wxWindow::FindFocus()
 653 {
 654     // TODO
 655     return NULL;
 656 }
 657
 658 void wxWindow::AddChild(wxWindow *child)
 659 {
 660     GetChildren().Append(child);
 661     child->m_windowParent = this;
 662 }
 663
 664 void wxWindow::RemoveChild(wxWindow *child)
 665 {
 666     GetChildren().DeleteObject(child);
 667     child->m_windowParent = NULL;
 668 }
 669
 670 void wxWindow::DestroyChildren()
 671 {
 672     wxNode *node;
 673     while ((node = GetChildren().First()) != (wxNode *)NULL) {
 674       wxWindow *child;
 675       if ((child = (wxWindow *)node->Data()) != (wxWindow *)NULL) {
 676         delete child;
 677                 if ( GetChildren().Member(child) )
 678                         delete node;
 679       }
 680     } /* while */
 681 }
 682
 683 void wxWindow::MakeModal(bool modal)
 684 {
 685   // Disable all other windows
 686   if (this->IsKindOf(CLASSINFO(wxDialog)) || this->IsKindOf(CLASSINFO(wxFrame)))
 687   {
 688     wxNode *node = wxTopLevelWindows.First();
 689     while (node)
 690     {
 691       wxWindow *win = (wxWindow *)node->Data();
 692       if (win != this)
 693         win->Enable(!modal);
 694
 695       node = node->Next();
 696     }
 697   }
 698 }
 699
 700 // If nothing defined for this, try the parent.
 701 // E.g. we may be a button loaded from a resource, with no callback function
 702 // defined.
 703 void wxWindow::OnCommand(wxWindow& win, wxCommandEvent& event)
 704 {
 705   if (GetEventHandler()->ProcessEvent(event) )
 706     return;
 707   if (m_windowParent)
 708     m_windowParent->GetEventHandler()->OnCommand(win, event);
 709 }
 710
 711 void wxWindow::SetConstraints(wxLayoutConstraints *c)
 712 {
 713   if (m_constraints)
 714   {
 715     UnsetConstraints(m_constraints);
 716     delete m_constraints;
 717   }
 718   m_constraints = c;
 719   if (m_constraints)
 720   {
 721     // Make sure other windows know they're part of a 'meaningful relationship'
 722     if (m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this))
 723       m_constraints->left.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
 724     if (m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this))
 725       m_constraints->top.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
 726     if (m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this))
 727       m_constraints->right.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
 728     if (m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this))
 729       m_constraints->bottom.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
 730     if (m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this))
 731       m_constraints->width.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
 732     if (m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this))
 733       m_constraints->height.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
 734     if (m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this))
 735       m_constraints->centreX.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
 736     if (m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this))
 737       m_constraints->centreY.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
 738   }
 739 }
 740
 741 // This removes any dangling pointers to this window
 742 // in other windows' constraintsInvolvedIn lists.
 743 void wxWindow::UnsetConstraints(wxLayoutConstraints *c)
 744 {
 745   if (c)
 746   {
 747     if (c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this))
 748       c->left.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
 749     if (c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this))
 750       c->top.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
 751     if (c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this))
 752       c->right.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
 753     if (c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this))
 754       c->bottom.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
 755     if (c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this))
 756       c->width.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
 757     if (c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this))
 758       c->height.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
 759     if (c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this))
 760       c->centreX.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
 761     if (c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this))
 762       c->centreY.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
 763   }
 764 }
 765
 766 // Back-pointer to other windows we're involved with, so if we delete
 767 // this window, we must delete any constraints we're involved with.
 768 void wxWindow::AddConstraintReference(wxWindow *otherWin)
 769 {
 770   if (!m_constraintsInvolvedIn)
 771     m_constraintsInvolvedIn = new wxList;
 772   if (!m_constraintsInvolvedIn->Member(otherWin))
 773     m_constraintsInvolvedIn->Append(otherWin);
 774 }
 775
 776 // REMOVE back-pointer to other windows we're involved with.
 777 void wxWindow::RemoveConstraintReference(wxWindow *otherWin)
 778 {
 779   if (m_constraintsInvolvedIn)
 780     m_constraintsInvolvedIn->DeleteObject(otherWin);
 781 }
 782
 783 // Reset any constraints that mention this window
 784 void wxWindow::DeleteRelatedConstraints()
 785 {
 786   if (m_constraintsInvolvedIn)
 787   {
 788     wxNode *node = m_constraintsInvolvedIn->First();
 789     while (node)
 790     {
 791       wxWindow *win = (wxWindow *)node->Data();
 792       wxNode *next = node->Next();
 793       wxLayoutConstraints *constr = win->GetConstraints();
 794
 795       // Reset any constraints involving this window
 796       if (constr)
 797       {
 798         constr->left.ResetIfWin((wxWindow *)this);
 799         constr->top.ResetIfWin((wxWindow *)this);
 800         constr->right.ResetIfWin((wxWindow *)this);
 801         constr->bottom.ResetIfWin((wxWindow *)this);
 802         constr->width.ResetIfWin((wxWindow *)this);
 803         constr->height.ResetIfWin((wxWindow *)this);
 804         constr->centreX.ResetIfWin((wxWindow *)this);
 805         constr->centreY.ResetIfWin((wxWindow *)this);
 806       }
 807       delete node;
 808       node = next;
 809     }
 810     delete m_constraintsInvolvedIn;
 811     m_constraintsInvolvedIn = NULL;
 812   }
 813 }
 814
 815 void wxWindow::SetSizer(wxSizer *sizer)
 816 {
 817   m_windowSizer = sizer;
 818   if (sizer)
 819     sizer->SetSizerParent((wxWindow *)this);
 820 }
 821
 822 /*
 823  * New version
 824  */
 825
 826 bool wxWindow::Layout()
 827 {
 828   if (GetConstraints())
 829   {
 830     int w, h;
 831     GetClientSize(&w, &h);
 832     GetConstraints()->width.SetValue(w);
 833     GetConstraints()->height.SetValue(h);
 834   }
 835
 836   // If top level (one sizer), evaluate the sizer's constraints.
 837   if (GetSizer())
 838   {
 839     int noChanges;
 840     GetSizer()->ResetConstraints();   // Mark all constraints as unevaluated
 841     GetSizer()->LayoutPhase1(&noChanges);
 842     GetSizer()->LayoutPhase2(&noChanges);
 843     GetSizer()->SetConstraintSizes(); // Recursively set the real window sizes
 844     return TRUE;
 845   }
 846   else
 847   {
 848     // Otherwise, evaluate child constraints
 849     ResetConstraints();   // Mark all constraints as unevaluated
 850     DoPhase(1);           // Just one phase need if no sizers involved
 851     DoPhase(2);
 852     SetConstraintSizes(); // Recursively set the real window sizes
 853   }
 854   return TRUE;
 855 }
 856
 857
 858 // Do a phase of evaluating constraints:
 859 // the default behaviour. wxSizers may do a similar
 860 // thing, but also impose their own 'constraints'
 861 // and order the evaluation differently.
 862 bool wxWindow::LayoutPhase1(int *noChanges)
 863 {
 864   wxLayoutConstraints *constr = GetConstraints();
 865   if (constr)
 866   {
 867     return constr->SatisfyConstraints((wxWindow *)this, noChanges);
 868   }
 869   else
 870     return TRUE;
 871 }
 872
 873 bool wxWindow::LayoutPhase2(int *noChanges)
 874 {
 875   *noChanges = 0;
 876
 877   // Layout children
 878   DoPhase(1);
 879   DoPhase(2);
 880   return TRUE;
 881 }
 882
 883 // Do a phase of evaluating child constraints
 884 bool wxWindow::DoPhase(int phase)
 885 {
 886   int noIterations = 0;
 887   int maxIterations = 500;
 888   int noChanges = 1;
 889   int noFailures = 0;
 890   wxList succeeded;
 891   while ((noChanges > 0) && (noIterations < maxIterations))
 892   {
 893     noChanges = 0;
 894     noFailures = 0;
 895     wxNode *node = GetChildren().First();
 896     while (node)
 897     {
 898       wxWindow *child = (wxWindow *)node->Data();
 899       if (!child->IsKindOf(CLASSINFO(wxFrame)) && !child->IsKindOf(CLASSINFO(wxDialog)))
 900       {
 901         wxLayoutConstraints *constr = child->GetConstraints();
 902         if (constr)
 903         {
 904           if (succeeded.Member(child))
 905           {
 906           }
 907           else
 908           {
 909             int tempNoChanges = 0;
 910             bool success = ( (phase == 1) ? child->LayoutPhase1(&tempNoChanges) : child->LayoutPhase2(&tempNoChanges) ) ;
 911             noChanges += tempNoChanges;
 912             if (success)
 913             {
 914               succeeded.Append(child);
 915             }
 916           }
 917         }
 918       }
 919       node = node->Next();
 920     }
 921     noIterations ++;
 922   }
 923   return TRUE;
 924 }
 925
 926 void wxWindow::ResetConstraints()
 927 {
 928   wxLayoutConstraints *constr = GetConstraints();
 929   if (constr)
 930   {
 931     constr->left.SetDone(FALSE);
 932     constr->top.SetDone(FALSE);
 933     constr->right.SetDone(FALSE);
 934     constr->bottom.SetDone(FALSE);
 935     constr->width.SetDone(FALSE);
 936     constr->height.SetDone(FALSE);
 937     constr->centreX.SetDone(FALSE);
 938     constr->centreY.SetDone(FALSE);
 939   }
 940   wxNode *node = GetChildren().First();
 941   while (node)
 942   {
 943     wxWindow *win = (wxWindow *)node->Data();
 944     if (!win->IsKindOf(CLASSINFO(wxFrame)) && !win->IsKindOf(CLASSINFO(wxDialog)))
 945       win->ResetConstraints();
 946     node = node->Next();
 947   }
 948 }
 949
 950 // Need to distinguish between setting the 'fake' size for
 951 // windows and sizers, and setting the real values.
 952 void wxWindow::SetConstraintSizes(bool recurse)
 953 {
 954   wxLayoutConstraints *constr = GetConstraints();
 955   if (constr && constr->left.GetDone() && constr->right.GetDone() &&
 956                 constr->width.GetDone() && constr->height.GetDone())
 957   {
 958     int x = constr->left.GetValue();
 959     int y = constr->top.GetValue();
 960     int w = constr->width.GetValue();
 961     int h = constr->height.GetValue();
 962
 963     // If we don't want to resize this window, just move it...
 964     if ((constr->width.GetRelationship() != wxAsIs) ||
 965         (constr->height.GetRelationship() != wxAsIs))
 966     {
 967       // Calls Layout() recursively. AAAGH. How can we stop that.
 968       // Simply take Layout() out of non-top level OnSizes.
 969       SizerSetSize(x, y, w, h);
 970     }
 971     else
 972     {
 973       SizerMove(x, y);
 974     }
 975   }
 976   else if (constr)
 977   {
 978     char *windowClass = this->GetClassInfo()->GetClassName();
 979
 980     wxString winName;
 981         if (GetName() == "")
 982                 winName = "unnamed";
 983         else
 984                 winName = GetName();
 985     wxDebugMsg("Constraint(s) not satisfied for window of type %s, name %s:\n", (const char *)windowClass, (const char *)winName);
 986     if (!constr->left.GetDone())
 987       wxDebugMsg("  unsatisfied 'left' constraint.\n");
 988     if (!constr->right.GetDone())
 989       wxDebugMsg("  unsatisfied 'right' constraint.\n");
 990     if (!constr->width.GetDone())
 991       wxDebugMsg("  unsatisfied 'width' constraint.\n");
 992     if (!constr->height.GetDone())
 993       wxDebugMsg("  unsatisfied 'height' constraint.\n");
 994     wxDebugMsg("Please check constraints: try adding AsIs() constraints.\n");
 995   }
 996
 997   if (recurse)
 998   {
 999     wxNode *node = GetChildren().First();
1000     while (node)
1001     {
1002       wxWindow *win = (wxWindow *)node->Data();
1003       if (!win->IsKindOf(CLASSINFO(wxFrame)) && !win->IsKindOf(CLASSINFO(wxDialog)))
1004         win->SetConstraintSizes();
1005       node = node->Next();
1006     }
1007   }
1008 }
1009
1010 // This assumes that all sizers are 'on' the same
1011 // window, i.e. the parent of this window.
1012 void wxWindow::TransformSizerToActual(int *x, int *y) const
1013 {
1014   if (!m_sizerParent || m_sizerParent->IsKindOf(CLASSINFO(wxDialog)) ||
1015                          m_sizerParent->IsKindOf(CLASSINFO(wxFrame)) )
1016     return;
1017
1018   int xp, yp;
1019   m_sizerParent->GetPosition(&xp, &yp);
1020   m_sizerParent->TransformSizerToActual(&xp, &yp);
1021   *x += xp;
1022   *y += yp;
1023 }
1024
1025 void wxWindow::SizerSetSize(int x, int y, int w, int h)
1026 {
1027         int xx = x;
1028         int yy = y;
1029   TransformSizerToActual(&xx, &yy);
1030   SetSize(xx, yy, w, h);
1031 }
1032
1033 void wxWindow::SizerMove(int x, int y)
1034 {
1035         int xx = x;
1036         int yy = y;
1037   TransformSizerToActual(&xx, &yy);
1038   Move(xx, yy);
1039 }
1040
1041 // Only set the size/position of the constraint (if any)
1042 void wxWindow::SetSizeConstraint(int x, int y, int w, int h)
1043 {
1044   wxLayoutConstraints *constr = GetConstraints();
1045   if (constr)
1046   {
1047     if (x != -1)
1048     {
1049       constr->left.SetValue(x);
1050       constr->left.SetDone(TRUE);
1051     }
1052     if (y != -1)
1053     {
1054       constr->top.SetValue(y);
1055       constr->top.SetDone(TRUE);
1056     }
1057     if (w != -1)
1058     {
1059       constr->width.SetValue(w);
1060       constr->width.SetDone(TRUE);
1061     }
1062     if (h != -1)
1063     {
1064       constr->height.SetValue(h);
1065       constr->height.SetDone(TRUE);
1066     }
1067   }
1068 }
1069
1070 void wxWindow::MoveConstraint(int x, int y)
1071 {
1072   wxLayoutConstraints *constr = GetConstraints();
1073   if (constr)
1074   {
1075     if (x != -1)
1076     {
1077       constr->left.SetValue(x);
1078       constr->left.SetDone(TRUE);
1079     }
1080     if (y != -1)
1081     {
1082       constr->top.SetValue(y);
1083       constr->top.SetDone(TRUE);
1084     }
1085   }
1086 }
1087
1088 void wxWindow::GetSizeConstraint(int *w, int *h) const
1089 {
1090   wxLayoutConstraints *constr = GetConstraints();
1091   if (constr)
1092   {
1093     *w = constr->width.GetValue();
1094     *h = constr->height.GetValue();
1095   }
1096   else
1097     GetSize(w, h);
1098 }
1099
1100 void wxWindow::GetClientSizeConstraint(int *w, int *h) const
1101 {
1102   wxLayoutConstraints *constr = GetConstraints();
1103   if (constr)
1104   {
1105     *w = constr->width.GetValue();
1106     *h = constr->height.GetValue();
1107   }
1108   else
1109     GetClientSize(w, h);
1110 }
1111
1112 void wxWindow::GetPositionConstraint(int *x, int *y) const
1113 {
1114   wxLayoutConstraints *constr = GetConstraints();
1115   if (constr)
1116   {
1117     *x = constr->left.GetValue();
1118     *y = constr->top.GetValue();
1119   }
1120   else
1121     GetPosition(x, y);
1122 }
1123
1124 bool wxWindow::Close(bool force)
1125 {
1126   wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
1127   event.SetEventObject(this);
1128   event.SetForce(force);
1129
1130   return GetEventHandler()->ProcessEvent(event);
1131 }
1132
1133 wxObject* wxWindow::GetChild(int number) const
1134 {
1135   // Return a pointer to the Nth object in the window
1136   wxNode *node = GetChildren().First();
1137   int n = number;
1138   while (node && n--)
1139     node = node->Next() ;
1140   if (node)
1141   {
1142     wxObject *obj = (wxObject *)node->Data();
1143     return(obj) ;
1144   }
1145   else
1146     return NULL ;
1147 }
1148
1149 void wxWindow::OnDefaultAction(wxControl *initiatingItem)
1150 {
1151     // Obsolete function
1152 }
1153
1154 void wxWindow::Clear()
1155 {
1156         wxClientDC dc(this);
1157     wxBrush brush(GetBackgroundColour(), wxSOLID);
1158     dc.SetBackground(brush);
1159     dc.Clear();
1160 }
1161
1162 // Fits the panel around the items
1163 void wxWindow::Fit()
1164 {
1165         int maxX = 0;
1166         int maxY = 0;
1167         wxNode *node = GetChildren().First();
1168         while ( node )
1169         {
1170                 wxWindow *win = (wxWindow *)node->Data();
1171                 int wx, wy, ww, wh;
1172                 win->GetPosition(&wx, &wy);
1173                 win->GetSize(&ww, &wh);
1174                 if ( wx + ww > maxX )
1175                         maxX = wx + ww;
1176                 if ( wy + wh > maxY )
1177                         maxY = wy + wh;
1178
1179                 node = node->Next();
1180         }
1181         SetClientSize(maxX + 5, maxY + 5);
1182 }
1183
1184 void wxWindow::SetValidator(const wxValidator& validator)
1185 {
1186         if ( m_windowValidator )
1187                 delete m_windowValidator;
1188         m_windowValidator = validator.Clone();
1189
1190         if ( m_windowValidator )
1191                 m_windowValidator->SetWindow(this) ;
1192 }
1193
1194 void wxWindow::SetAcceleratorTable(const wxAcceleratorTable& accel)
1195 {
1196     m_acceleratorTable = accel;
1197 }
1198
1199 // Find a window by id or name
1200 wxWindow *wxWindow::FindWindow(long id)
1201 {
1202         if ( GetId() == id)
1203                 return this;
1204
1205         wxNode *node = GetChildren().First();
1206         while ( node )
1207         {
1208                 wxWindow *child = (wxWindow *)node->Data();
1209                 wxWindow *found = child->FindWindow(id);
1210                 if ( found )
1211                         return found;
1212                 node = node->Next();
1213         }
1214         return NULL;
1215 }
1216
1217 wxWindow *wxWindow::FindWindow(const wxString& name)
1218 {
1219         if ( GetName() == name)
1220                 return this;
1221
1222         wxNode *node = GetChildren().First();
1223         while ( node )
1224         {
1225                 wxWindow *child = (wxWindow *)node->Data();
1226                 wxWindow *found = child->FindWindow(name);
1227                 if ( found )
1228                         return found;
1229                 node = node->Next();
1230         }
1231         return NULL;
1232 }
1233
1234 void wxWindow::OnIdle(wxIdleEvent& event)
1235 {
1236 /* TODO: you may need to do something like this
1237  * if your GUI doesn't generate enter/leave events
1238
1239     // Check if we need to send a LEAVE event
1240     if (m_mouseInWindow)
1241     {
1242         POINT pt;
1243         ::GetCursorPos(&pt);
1244         if (::WindowFromPoint(pt) != (HWND) GetHWND())
1245         {
1246             // Generate a LEAVE event
1247             m_mouseInWindow = FALSE;
1248             MSWOnMouseLeave(pt.x, pt.y, 0);
1249         }
1250     }
1251 */
1252
1253     // This calls the UI-update mechanism (querying windows for
1254     // menu/toolbar/control state information)
1255         UpdateWindowUI();
1256 }
1257
1258 // Raise the window to the top of the Z order
1259 void wxWindow::Raise()
1260 {
1261     // TODO
1262 }
1263
1264 // Lower the window to the bottom of the Z order
1265 void wxWindow::Lower()
1266 {
1267     // TODO
1268 }
1269
1270 bool wxWindow::AcceptsFocus() const
1271 {
1272   return IsShown() && IsEnabled();
1273 }
1274
1275 // Update region access
1276 wxRegion wxWindow::GetUpdateRegion() const
1277 {
1278     return m_updateRegion;
1279 }
1280
1281 bool wxWindow::IsExposed(int x, int y, int w, int h) const
1282 {
1283     return (m_updateRegion.Contains(x, y, w, h) != wxOutRegion);
1284 }
1285
1286 bool wxWindow::IsExposed(const wxPoint& pt) const
1287 {
1288     return (m_updateRegion.Contains(pt) != wxOutRegion);
1289 }
1290
1291 bool wxWindow::IsExposed(const wxRect& rect) const
1292 {
1293     return (m_updateRegion.Contains(rect) != wxOutRegion);
1294 }
1295
1296 /*
1297  * Allocates control IDs
1298  */
1299
1300 int wxWindow::NewControlId()
1301 {
1302     static int s_controlId = 0;
1303     s_controlId ++;
1304     return s_controlId;
1305 }
1306
1307