contrib/src/gizmos/dynamicsash.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dynamicsash.cpp
   3 // Purpose:     A window which can be dynamically split to an arbitrary depth
   4 //              and later reunified through the user interface
   5 // Author:      Matt Kimball
   6 // Modified by:
   7 // Created:     7/15/2001
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2001 Matt Kimball
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 #ifdef __GNUG__
  14     #pragma implementation "splittree.h"
  15 #endif
  16
  17 // For compilers that support precompilation, includes "wx/wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21     #pragma hdrstop
  22 #endif
  23
  24 // for all others, include the necessary headers (this file is usually all you
  25 // need because it includes almost all "standard" wxWidgets headers)
  26 #ifndef WX_PRECOMP
  27     #include "wx/wx.h"
  28 #endif
  29
  30 #include "wx/gizmos/dynamicsash.h"
  31
  32
  33 const wxChar* wxDynamicSashWindowNameStr = wxT("dynamicSashWindow");
  34
  35
  36 /*
  37     wxDynamicSashWindow works by internally storing a tree of Implementation
  38     objects (wxDynamicSsahWindowImpl) and Leaf objects
  39     (wxDynamicSashWindowLeaf).  The wxDynamicSashWindow has a pointer to one
  40     implementation, and each implementation either has a pointer to a one
  41     leaf (m_leaf) or a pointer to two children implementation objects
  42     (m_child).  The leaves each are responsible for drawing the frame and
  43     decorations around one user-provided views and for responding to mouse
  44     and scrollbar events.
  45
  46     A resulting tree might look something like this:
  47
  48     wxDynamicSashWindow
  49      |
  50      +- wxDynamicSashWindowImpl
  51          |
  52          +- wxDynamicSashWindowLeaf
  53          |   |
  54          |   +- user view window
  55          |
  56          +- wxDynamicSashWindowImpl
  57              |
  58              +- wxDynamicSashWindowLeaf
  59              |   |
  60              |   +- user view window
  61              |
  62              +- wxDynamicSashWindowLeaf
  63                  |
  64                  +- user view window
  65
  66     Each time a split occurs, one of the implementation objects removes its
  67     leaf, generates two new implementation object children, each with a new
  68     leaf, and reparents the user view which was connected to its old leaf
  69     to be one of the new leaf's user view, and sends a Split event to the
  70     user view in the hopes that it will generate a new user view for the
  71     other new leaf.
  72
  73     When a unification ocurrs, an implementation object is replaced by one
  74     of its children, and the tree of its other child is pruned.
  75
  76     One quirk is that the top-level implementation object (m_top) always
  77     keeps a pointer to the implementation object where a new child is needed.
  78     (m_add_child_target).  This is so that when a new uesr view is added
  79     to the hierarchy, AddChild() is able to reparent the new user view to
  80     the correct implementation object's leaf.
  81
  82 */
  83
  84 #include <wx/dcmemory.h>
  85 #include <wx/dcscreen.h>
  86 #include <wx/layout.h>
  87 #include <wx/scrolbar.h>
  88 #include <wx/settings.h>
  89
  90
  91 #define wxEVT_DYNAMIC_SASH_PRIVATE          (wxEVT_DYNAMIC_SASH_BASE + 8)
  92 #define wxEVT_DYNAMIC_SASH_REPARENT         (wxEVT_DYNAMIC_SASH_PRIVATE + 1)
  93
  94
  95 /*
  96     wxDynamicSashReparentEvent is generated by the AddChild() method of
  97     wxDynamicSashWindow when it wants a Leaf to reparent a user view window
  98     to its viewport at some time in the future.  We can't reparent the window
  99     immediately, because switching parents in AddChild() confuses the wxWindow
 100     class.  Instead, we queue up this event, and the window is actually
 101     reparented the next time we process events in the idle loop.
 102 */
 103 class wxDynamicSashReparentEvent : public wxEvent {
 104 public:
 105     wxDynamicSashReparentEvent();
 106     wxDynamicSashReparentEvent(wxObject *object);
 107     wxDynamicSashReparentEvent(const wxDynamicSashReparentEvent& evt);
 108
 109     virtual wxEvent* Clone() const { return new wxDynamicSashReparentEvent(*this); }
 110
 111     DECLARE_DYNAMIC_CLASS(wxDynamicSashReparentEvent);
 112 };
 113
 114
 115 enum DynamicSashRegion {
 116     DSR_NONE,
 117     DSR_VERTICAL_TAB,
 118     DSR_HORIZONTAL_TAB,
 119     DSR_CORNER,
 120     DSR_LEFT_EDGE,
 121     DSR_TOP_EDGE,
 122     DSR_RIGHT_EDGE,
 123     DSR_BOTTOM_EDGE
 124 };
 125
 126
 127 class wxDynamicSashWindowImpl : public wxEvtHandler {
 128 public:
 129     wxDynamicSashWindowImpl(wxDynamicSashWindow *window);
 130     ~wxDynamicSashWindowImpl();
 131
 132     bool Create();
 133     void AddChild(wxWindow *window);
 134     void DrawSash(int x, int y) const;
 135     void ConstrainChildren(int px, int py);
 136     void Split(int x, int y);
 137     void Unify(int panel);
 138     void Resize(int x, int y);
 139     wxDynamicSashWindowImpl *FindParent(DynamicSashRegion side) const;
 140     wxDynamicSashWindowImpl *FindUpperParent(wxDynamicSashWindowImpl *sash_a,
 141                                              wxDynamicSashWindowImpl *sash_b) const;
 142     wxWindow *FindFrame() const;
 143     wxScrollBar *FindScrollBar(const wxWindow *child, int vert) const;
 144
 145     void OnSize(wxSizeEvent &event);
 146     void OnPaint(wxPaintEvent &event);
 147     void OnMouseMove(wxMouseEvent &event);
 148     void OnLeave(wxMouseEvent &event);
 149     void OnPress(wxMouseEvent &event);
 150     void OnRelease(wxMouseEvent &event);
 151
 152     wxDynamicSashWindow *m_window;
 153     wxDynamicSashWindowImpl *m_add_child_target;
 154
 155     /*  This is the window we are responsible for managing.  Either of
 156         leaf or our children are in this window.  For the top level
 157         implementation object, this is the same as m_window.
 158         Otherwise it is a window we've created an will destroy when we
 159         are deleted.  */
 160     wxWindow *m_container;
 161
 162     wxDynamicSashWindowImpl *m_parent;
 163     wxDynamicSashWindowImpl *m_top;
 164     wxDynamicSashWindowImpl *m_child[2];
 165
 166     class wxDynamicSashWindowLeaf *m_leaf;
 167
 168     /*  If the implementation is split horizontally or vertically, m_split
 169         is set to DSR_HORIZONTAL_TAB or DSR_VERTICAL_TAB, respectively.
 170         Otherwise it is set to DSR_NONE.  */
 171     DynamicSashRegion m_split;
 172
 173     /*  These are used to keep track of a sash as it is being dragged, for
 174         drawing the user interface correctly.  */
 175     DynamicSashRegion m_dragging;
 176     int m_drag_x, m_drag_y;
 177 };
 178
 179 class wxDynamicSashWindowLeaf : public wxEvtHandler {
 180 public:
 181     wxDynamicSashWindowLeaf(wxDynamicSashWindowImpl *impl);
 182     ~wxDynamicSashWindowLeaf();
 183
 184     bool Create();
 185     void AddChild(wxWindow *window);
 186     DynamicSashRegion GetRegion(int x, int y);
 187     void ResizeChild(wxSize size);
 188     wxScrollBar *FindScrollBar(const wxWindow *child, int vert) const;
 189
 190     void OnSize(wxSizeEvent &event);
 191     void OnPaint(wxPaintEvent &event);
 192     void OnScroll(wxScrollEvent &event);
 193     void OnFocus(wxFocusEvent &event);
 194     void OnMouseMove(wxMouseEvent &event);
 195     void OnLeave(wxMouseEvent &event);
 196     void OnPress(wxMouseEvent &event);
 197     void OnRelease(wxMouseEvent &event);
 198     void OnReparent(wxEvent &event);
 199
 200     wxDynamicSashWindowImpl *m_impl;
 201
 202     wxScrollBar *m_vscroll, *m_hscroll;
 203
 204     /*  m_child is the window provided to us by the application developer.
 205         m_viewport is a window we've created, and it is the immediately
 206         parent of m_child.  We scroll m_child by moving it around within
 207         m_viewport.  */
 208     wxWindow *m_viewport, *m_child;
 209 };
 210
 211 // wxDynamicSashWindow //////////////////////////////////////////////////////
 212
 213 wxDynamicSashWindow::wxDynamicSashWindow() {
 214     m_impl = NULL;
 215 }
 216
 217 wxDynamicSashWindow::wxDynamicSashWindow(wxWindow *parent, wxWindowID id,
 218                                          const wxPoint& pos, const wxSize& size,
 219                                          long style, const wxString& name) {
 220     m_impl = NULL;
 221     Create(parent, id, pos, size, style, name);
 222 }
 223
 224 wxDynamicSashWindow::~wxDynamicSashWindow() {
 225     SetEventHandler(this);
 226     delete m_impl;
 227 }
 228
 229 bool wxDynamicSashWindow::Create(wxWindow *parent, wxWindowID id,
 230                                  const wxPoint& pos, const wxSize& size,
 231                                  long style, const wxString& name) {
 232     if (m_impl)
 233         return false;
 234
 235     if (!wxWindow::Create(parent, id, pos, size, style, name))
 236         return false;
 237
 238     m_impl = new wxDynamicSashWindowImpl(this);
 239     if (!m_impl)
 240         return false;
 241
 242     if (!m_impl->Create()) {
 243         delete m_impl;
 244         m_impl = NULL;
 245         return false;
 246     }
 247
 248     return true;
 249 }
 250
 251 void wxDynamicSashWindow::AddChild(wxWindowBase *child) {
 252     wxWindow::AddChild(child);
 253
 254     m_impl->AddChild(wxDynamicCast(child, wxWindow));
 255 }
 256
 257 wxScrollBar *wxDynamicSashWindow::GetHScrollBar(const wxWindow *child) const {
 258     return m_impl->FindScrollBar(child, 0);
 259 }
 260
 261 wxScrollBar *wxDynamicSashWindow::GetVScrollBar(const wxWindow *child) const {
 262     return m_impl->FindScrollBar(child, 1);
 263 }
 264
 265 IMPLEMENT_DYNAMIC_CLASS(wxDynamicSashWindow, wxWindow)
 266
 267 // wxDynamicSashWindowImpl //////////////////////////////////////////////////
 268
 269 wxDynamicSashWindowImpl::wxDynamicSashWindowImpl(wxDynamicSashWindow *window) {
 270     m_window = window;
 271     m_add_child_target = this;
 272
 273     m_container = NULL;
 274     m_parent = NULL;
 275     m_top = this;
 276     m_child[0] = m_child[1] = NULL;
 277     m_leaf = NULL;
 278     m_dragging = DSR_NONE;
 279     m_split = DSR_NONE;
 280 }
 281
 282 wxDynamicSashWindowImpl::~wxDynamicSashWindowImpl() {
 283     delete m_leaf;
 284     delete m_child[0];
 285     m_child[0] = NULL;
 286     delete m_child[1];
 287     m_child[1] = NULL;
 288     m_leaf = NULL;
 289
 290     if (m_container != m_window && m_container) {
 291         m_container->SetEventHandler(m_container);
 292         m_container->Destroy();
 293     }
 294 }
 295
 296 bool wxDynamicSashWindowImpl::Create() {
 297     if (!m_container) {
 298         m_container = m_window;
 299     }
 300
 301     wxCursor cursor(wxCURSOR_ARROW);
 302     m_container->SetCursor(cursor);
 303
 304     m_leaf = new wxDynamicSashWindowLeaf(this);
 305     if (!m_leaf)
 306         return false;
 307
 308     if (!m_leaf->Create()) {
 309         delete m_leaf;
 310         m_leaf = NULL;
 311         return false;
 312     }
 313
 314     m_container->SetEventHandler(this);
 315
 316     Connect(wxID_ANY, wxEVT_SIZE, (wxObjectEventFunction)
 317                             (wxEventFunction)
 318                             (wxSizeEventFunction)&wxDynamicSashWindowImpl::OnSize);
 319     Connect(wxID_ANY, wxEVT_PAINT, (wxObjectEventFunction)
 320                              (wxEventFunction)
 321                              (wxPaintEventFunction)&wxDynamicSashWindowImpl::OnPaint);
 322     Connect(wxID_ANY, wxEVT_MOTION, (wxObjectEventFunction)
 323                               (wxEventFunction)
 324                               (wxMouseEventFunction)&wxDynamicSashWindowImpl::OnMouseMove);
 325     Connect(wxID_ANY, wxEVT_ENTER_WINDOW, (wxObjectEventFunction)
 326                                     (wxEventFunction)
 327                                     (wxMouseEventFunction)&wxDynamicSashWindowImpl::OnMouseMove);
 328     Connect(wxID_ANY, wxEVT_LEAVE_WINDOW, (wxObjectEventFunction)
 329                                     (wxEventFunction)
 330                                     (wxMouseEventFunction)&wxDynamicSashWindowImpl::OnLeave);
 331     Connect(wxID_ANY, wxEVT_LEFT_DOWN, (wxObjectEventFunction)
 332                                  (wxEventFunction)
 333                                  (wxMouseEventFunction)&wxDynamicSashWindowImpl::OnPress);
 334     Connect(wxID_ANY, wxEVT_LEFT_UP, (wxObjectEventFunction)
 335                                (wxEventFunction)
 336                                (wxMouseEventFunction)&wxDynamicSashWindowImpl::OnRelease);
 337
 338     return true;
 339 }
 340
 341 void wxDynamicSashWindowImpl::AddChild(wxWindow *window) {
 342     if (m_add_child_target && m_add_child_target->m_leaf) {
 343         m_add_child_target->m_leaf->AddChild(window);
 344     }
 345 }
 346
 347 void wxDynamicSashWindowImpl::DrawSash(int x, int y) const {
 348     int i, j;
 349
 350     wxScreenDC dc;
 351     dc.StartDrawingOnTop(m_container);
 352
 353     wxBitmap bmp(8, 8);
 354     wxMemoryDC bdc;
 355     bdc.SelectObject(bmp);
 356     bdc.DrawRectangle(-1, -1, 10, 10);
 357     for (i = 0; i < 8; i++) {
 358         for (j = 0; j < 8; j++) {
 359             if ((i + j) & 1) {
 360                 bdc.DrawPoint(i, j);
 361             }
 362         }
 363     }
 364
 365     wxBrush brush(bmp);
 366     dc.SetBrush(brush);
 367     dc.SetLogicalFunction(wxXOR);
 368
 369     if ((m_dragging == DSR_CORNER) &&
 370         (m_window->GetWindowStyle() & wxDS_DRAG_CORNER) != 0) {
 371         int cx = 0;
 372         int cy = 0;
 373
 374         m_container->ClientToScreen(&cx, &cy);
 375         m_container->ClientToScreen(&x, &y);
 376
 377         if (cx < x && cy < y) {
 378             dc.DrawRectangle(cx - 2, cy - 2, x - cx + 4, 4);
 379             dc.DrawRectangle(x - 2, cy + 2, 4, y - cy);
 380             dc.DrawRectangle(cx - 2, cy + 2, 4, y - cy);
 381             dc.DrawRectangle(cx + 2, y - 2, x - cx - 4, 4);
 382         }
 383     } else {
 384         int body_w, body_h;
 385         m_container->GetClientSize(&body_w, &body_h);
 386
 387         if (y < 0)
 388             y = 0;
 389         if (y > body_h)
 390             y = body_h;
 391         if (x < 0)
 392             x = 0;
 393         if (x > body_w)
 394             x = body_w;
 395
 396         if (m_dragging == DSR_HORIZONTAL_TAB)
 397             x = 0;
 398         else
 399             y = 0;
 400
 401         m_container->ClientToScreen(&x, &y);
 402
 403         int w, h;
 404         w = body_w;  h = body_h;
 405
 406         if (m_dragging == DSR_HORIZONTAL_TAB)
 407             dc.DrawRectangle(x, y - 2, w, 4);
 408         else
 409             dc.DrawRectangle(x - 2, y, 4, h);
 410     }
 411
 412     dc.EndDrawingOnTop();
 413 }
 414
 415 wxDynamicSashWindowImpl *wxDynamicSashWindowImpl::FindParent(DynamicSashRegion side) const {
 416     if (m_parent == NULL) {
 417         return NULL;
 418     }
 419
 420     if (m_parent->m_split == DSR_HORIZONTAL_TAB) {
 421         if (side == DSR_TOP_EDGE && m_parent->m_child[1] == this)
 422             return m_parent;
 423         if (side == DSR_BOTTOM_EDGE && m_parent->m_child[0] == this)
 424             return m_parent;
 425     } else if (m_parent->m_split == DSR_VERTICAL_TAB) {
 426         if (side == DSR_LEFT_EDGE && m_parent->m_child[1] == this)
 427             return m_parent;
 428         if (side == DSR_RIGHT_EDGE && m_parent->m_child[0] == this)
 429             return m_parent;
 430     }
 431
 432     return m_parent->FindParent(side);
 433 }
 434
 435 wxDynamicSashWindowImpl *wxDynamicSashWindowImpl::FindUpperParent(wxDynamicSashWindowImpl *sash_a,
 436                                                                   wxDynamicSashWindowImpl *sash_b) const {
 437     wxWindow *win;
 438     win = sash_a->m_container->GetParent();
 439     while (win && !win->IsTopLevel()) {
 440         if (win == sash_b->m_container) {
 441             return sash_b;
 442         }
 443
 444         win = win->GetParent();
 445     }
 446
 447     return sash_a;
 448 }
 449
 450
 451 wxWindow *wxDynamicSashWindowImpl::FindFrame() const {
 452     wxWindow *win;
 453
 454     win = m_window->GetParent();
 455     while (win && !win->IsTopLevel()) {
 456         win = win->GetParent();
 457     }
 458
 459     return win;
 460 }
 461
 462 wxScrollBar *wxDynamicSashWindowImpl::FindScrollBar(const wxWindow *child, int vert) const {
 463     if (m_child[0] == NULL && m_leaf == NULL) {
 464         return NULL;
 465     }
 466
 467     if (!m_child[0]) {
 468         return m_leaf->FindScrollBar(child, vert);
 469     } else {
 470         wxScrollBar *ret = m_child[0]->FindScrollBar(child, vert);
 471         if (!ret) {
 472             ret = m_child[1]->FindScrollBar(child, vert);
 473         }
 474
 475         return ret;
 476     }
 477 }
 478
 479 void wxDynamicSashWindowImpl::ConstrainChildren(int px, int py) {
 480     wxLayoutConstraints *layout = new wxLayoutConstraints();
 481     layout->left.SameAs(m_container, wxLeft);
 482     layout->top.SameAs(m_container, wxTop);
 483     if (m_split == DSR_HORIZONTAL_TAB) {
 484         layout->right.SameAs(m_container, wxRight);
 485         layout->height.PercentOf(m_container, wxHeight, py);
 486     } else {
 487         layout->bottom.SameAs(m_container, wxBottom);
 488         layout->width.PercentOf(m_container, wxWidth, px);
 489     }
 490     m_child[0]->m_container->SetConstraints(layout);
 491
 492     layout = new wxLayoutConstraints();
 493     layout->right.SameAs(m_container, wxRight);
 494     layout->bottom.SameAs(m_container, wxBottom);
 495     if (m_split == DSR_HORIZONTAL_TAB) {
 496         layout->top.Below(m_child[0]->m_container, 1);
 497         layout->left.SameAs(m_container, wxLeft);
 498     } else {
 499         layout->left.RightOf(m_child[0]->m_container, 1);
 500         layout->top.SameAs(m_container, wxTop);
 501     }
 502     m_child[1]->m_container->SetConstraints(layout);
 503 }
 504
 505 void wxDynamicSashWindowImpl::Unify(int panel) {
 506     int other = 0;
 507     if (panel == 0) {
 508         other = 1;
 509     }
 510
 511     if (m_child[panel]->m_leaf) {
 512         wxDynamicSashWindowImpl *child[2];
 513
 514         child[0] = m_child[0];
 515         child[1] = m_child[1];
 516
 517         m_child[0] = m_child[1] = NULL;
 518
 519         m_leaf = new wxDynamicSashWindowLeaf(this);
 520         m_leaf->Create();
 521         m_leaf->m_child = child[panel]->m_leaf->m_child;
 522
 523         m_leaf->m_vscroll->SetScrollbar(child[panel]->m_leaf->m_vscroll->GetThumbPosition(),
 524                                         child[panel]->m_leaf->m_vscroll->GetThumbSize(),
 525                                         child[panel]->m_leaf->m_vscroll->GetRange(),
 526                                         child[panel]->m_leaf->m_vscroll->GetPageSize());
 527         m_leaf->m_hscroll->SetScrollbar(child[panel]->m_leaf->m_hscroll->GetThumbPosition(),
 528                                         child[panel]->m_leaf->m_hscroll->GetThumbSize(),
 529                                         child[panel]->m_leaf->m_hscroll->GetRange(),
 530                                         child[panel]->m_leaf->m_hscroll->GetPageSize());
 531         m_add_child_target = NULL;
 532         wxDynamicSashReparentEvent event(m_leaf);
 533         m_leaf->ProcessEvent(event);
 534
 535         delete child[0];
 536         delete child[1];
 537
 538         m_split = DSR_NONE;
 539
 540         wxDynamicSashUnifyEvent unify(m_leaf->m_child);
 541         m_leaf->m_child->ProcessEvent(unify);
 542     } else {
 543         m_split = m_child[panel]->m_split;
 544
 545         delete m_child[other];
 546
 547         wxDynamicSashWindowImpl *child_panel = m_child[panel];
 548         m_child[0] = child_panel->m_child[0];
 549         m_child[1] = child_panel->m_child[1];
 550
 551         m_child[0]->m_parent = this;
 552         m_child[1]->m_parent = this;
 553
 554         m_add_child_target = NULL;
 555         m_child[0]->m_container->Reparent(m_container);
 556         m_child[1]->m_container->Reparent(m_container);
 557
 558         child_panel->m_child[0] = child_panel->m_child[1] = NULL;
 559         delete child_panel;
 560
 561         wxSize size = m_container->GetSize();
 562         wxSize child_size = m_child[0]->m_container->GetSize();
 563
 564         ConstrainChildren(child_size.GetWidth() * 100 / size.GetWidth(),
 565                             child_size.GetHeight() * 100 / size.GetHeight());
 566
 567         m_container->Layout();
 568     }
 569 }
 570
 571 void wxDynamicSashWindowImpl::Split(int px, int py) {
 572
 573     m_add_child_target = NULL;
 574
 575     m_child[0] = new wxDynamicSashWindowImpl(m_window);
 576     m_child[0]->m_container = new wxWindow(m_container, wxID_ANY);
 577     m_child[0]->m_parent = this;
 578     m_child[0]->m_top = m_top;
 579     m_child[0]->Create();
 580     if (m_leaf->m_child) {
 581         m_leaf->m_child->Reparent(m_container);
 582         m_child[0]->AddChild(m_leaf->m_child);
 583     }
 584
 585     m_child[1] = new wxDynamicSashWindowImpl(m_window);
 586     m_child[1]->m_container = new wxWindow(m_container, wxID_ANY);
 587     m_child[1]->m_parent = this;
 588     m_child[1]->m_top = m_top;
 589     m_child[1]->Create();
 590
 591     m_split = m_dragging;
 592     ConstrainChildren(px, py);
 593
 594     m_top->m_add_child_target = m_child[1];
 595     wxDynamicSashSplitEvent split(m_child[0]->m_leaf->m_child);
 596     m_child[0]->m_leaf->m_child->ProcessEvent(split);
 597
 598     m_child[0]->m_leaf->m_vscroll->SetScrollbar(m_leaf->m_vscroll->GetThumbPosition(),
 599                                                 m_leaf->m_vscroll->GetThumbSize(),
 600                                                 m_leaf->m_vscroll->GetRange(),
 601                                                 m_leaf->m_vscroll->GetPageSize());
 602     m_child[0]->m_leaf->m_hscroll->SetScrollbar(m_leaf->m_hscroll->GetThumbPosition(),
 603                                                 m_leaf->m_hscroll->GetThumbSize(),
 604                                                 m_leaf->m_hscroll->GetRange(),
 605                                                 m_leaf->m_hscroll->GetPageSize());
 606     m_child[1]->m_leaf->m_vscroll->SetScrollbar(m_leaf->m_vscroll->GetThumbPosition(),
 607                                                 m_leaf->m_vscroll->GetThumbSize(),
 608                                                 m_leaf->m_vscroll->GetRange(),
 609                                                 m_leaf->m_vscroll->GetPageSize());
 610     m_child[1]->m_leaf->m_hscroll->SetScrollbar(m_leaf->m_hscroll->GetThumbPosition(),
 611                                                 m_leaf->m_hscroll->GetThumbSize(),
 612                                                 m_leaf->m_hscroll->GetRange(),
 613                                                 m_leaf->m_hscroll->GetPageSize());
 614     delete m_leaf;
 615     m_leaf = NULL;
 616
 617     m_container->Layout();
 618 }
 619
 620
 621 /*  This code is called when you finish resizing a view by dragging the
 622     corner tab, but I think this implementation is lousy and will surprise
 623     the user more often than it will do what they are trying to do.  What
 624     I really need to be doing here is do a rewrite such that *no* sashes
 625     move except the ones immediately to the bottom and right of this window,
 626     and handle the case where you resize a window larger than it's neighbors
 627     by destroying the neighbors.
 628
 629     But this will do for now.  */
 630 void wxDynamicSashWindowImpl::Resize(int x, int y) {
 631     wxDynamicSashWindowImpl *h_parent = FindParent(DSR_BOTTOM_EDGE);
 632     wxDynamicSashWindowImpl *v_parent = FindParent(DSR_RIGHT_EDGE);
 633     int h_unify = -1;
 634     int v_unify = -1;
 635     wxWindow *frame = FindFrame();
 636
 637     if (x < 0) {
 638         x = 0;
 639     }
 640     if (y < 0) {
 641         y = 0;
 642     }
 643
 644     if (h_parent) {
 645         m_container->ClientToScreen(NULL, &y);
 646         h_parent->m_container->ScreenToClient(NULL, &y);
 647
 648         int py = (int)((y * 100) / h_parent->m_container->GetSize().GetHeight() + 0.5);
 649
 650         if (py < 10) {
 651             wxDynamicSashWindowImpl *ho_parent = FindParent(DSR_TOP_EDGE);
 652
 653             if (ho_parent) {
 654                 if (FindUpperParent(h_parent, ho_parent) == ho_parent) {
 655                     h_unify = 1;
 656                 } else {
 657                     py = (int)((ho_parent->m_child[0]->m_container->GetSize().GetHeight() * 100)
 658                                 / h_parent->m_container->GetSize().GetHeight() + 0.5);
 659                     h_parent->m_child[0]->m_container->GetConstraints()->height.PercentOf(
 660                             h_parent->m_container, wxHeight, py);
 661
 662                     h_parent = ho_parent;
 663                     h_unify = 0;
 664                 }
 665             } else {
 666                 h_unify = 1;
 667             }
 668         } else if (py > 90) {
 669             h_unify = 0;
 670         } else {
 671             h_parent->m_child[0]->m_container->GetConstraints()->height.PercentOf(
 672                     h_parent->m_container, wxHeight, py);
 673             h_parent->m_container->Layout();
 674         }
 675     } else {
 676         int do_resize = 1;
 677         h_parent = FindParent(DSR_TOP_EDGE);
 678
 679         if (h_parent) {
 680             int py = (int)((y * 100) /
 681                         (h_parent->m_container->GetSize().GetHeight() +
 682                                 y - m_container->GetSize().GetHeight()) + 0.5);
 683
 684             if (py < 10) {
 685                 h_unify = 0;
 686             }
 687         } else if (y < 64) {
 688             do_resize = 0;
 689         }
 690
 691         if (do_resize) {
 692             wxSize size = frame->GetSize();
 693             frame->SetSize(size.GetWidth(), size.GetHeight() + y - m_container->GetSize().GetHeight());
 694         }
 695     }
 696
 697     if (v_parent) {
 698         m_container->ClientToScreen(&x, NULL);
 699         v_parent->m_container->ScreenToClient(&x, NULL);
 700
 701         int px = (int)((x * 100) / v_parent->m_container->GetSize().GetWidth() + 0.5);
 702
 703         if (px < 10) {
 704             wxDynamicSashWindowImpl *vo_parent = FindParent(DSR_LEFT_EDGE);
 705
 706             if (vo_parent) {
 707                 if (FindUpperParent(v_parent, vo_parent) == vo_parent) {
 708                     v_unify = 1;
 709                 } else {
 710                     px = (int)((vo_parent->m_child[0]->m_container->GetSize().GetWidth() * 100)
 711                                 / v_parent->m_container->GetSize().GetWidth() + 0.5);
 712                     v_parent->m_child[0]->m_container->GetConstraints()->width.PercentOf(
 713                             v_parent->m_container, wxWidth, px);
 714
 715                     v_parent = vo_parent;
 716                     v_unify = 0;
 717                 }
 718             } else {
 719                 v_unify = 1;
 720             }
 721         } else if (px > 90) {
 722             v_unify = 0;
 723         } else {
 724             v_parent->m_child[0]->m_container->GetConstraints()->width.PercentOf(
 725                     v_parent->m_container, wxWidth, px);
 726             v_parent->m_container->Layout();
 727         }
 728     } else {
 729         int do_resize = 1;
 730         v_parent = FindParent(DSR_LEFT_EDGE);
 731
 732         if (v_parent) {
 733             int px = (int)((x * 100) /
 734                         (v_parent->m_container->GetSize().GetWidth() +
 735                                 x - m_container->GetSize().GetWidth()) + 0.5);
 736
 737             if (px < 10) {
 738                 v_unify = 0;
 739             }
 740         } else if (x < 64) {
 741             do_resize = 0;
 742         }
 743
 744         if (do_resize) {
 745             wxSize size = frame->GetSize();
 746             frame->SetSize(size.GetWidth() + x - m_container->GetSize().GetWidth(), size.GetHeight());
 747         }
 748     }
 749
 750     if (h_unify != -1 && v_unify != -1) {
 751         wxDynamicSashWindowImpl *parent = FindUpperParent(h_parent, v_parent);
 752
 753         if (parent == h_parent) {
 754             h_parent->Unify(h_unify);
 755         } else {
 756             v_parent->Unify(v_unify);
 757         }
 758     } else if (h_unify != -1) {
 759         h_parent->Unify(h_unify);
 760     } else if (v_unify != -1) {
 761         v_parent->Unify(v_unify);
 762     }
 763 }
 764
 765
 766 void wxDynamicSashWindowImpl::OnSize(wxSizeEvent &event) {
 767     m_container->Layout();
 768
 769     if (m_leaf)
 770         m_leaf->OnSize(event);
 771 }
 772
 773 void wxDynamicSashWindowImpl::OnPaint(wxPaintEvent &event) {
 774     if (m_leaf)
 775         m_leaf->OnPaint(event);
 776     else {
 777         wxPaintDC dc(m_container);
 778         dc.SetBackground(wxBrush(m_container->GetBackgroundColour(), wxSOLID));
 779         dc.Clear();
 780     }
 781 }
 782
 783 void wxDynamicSashWindowImpl::OnMouseMove(wxMouseEvent &event) {
 784     if (m_dragging) {
 785         DrawSash(m_drag_x, m_drag_y);
 786         m_drag_x = event.m_x;  m_drag_y = event.m_y;
 787         DrawSash(m_drag_x, m_drag_y);
 788     } else if (m_leaf) {
 789         m_leaf->OnMouseMove(event);
 790     }
 791 }
 792
 793 void wxDynamicSashWindowImpl::OnLeave(wxMouseEvent &event) {
 794     if (m_leaf) {
 795         m_leaf->OnLeave(event);
 796     }
 797 }
 798
 799 void wxDynamicSashWindowImpl::OnPress(wxMouseEvent &event) {
 800     if (m_leaf) {
 801         m_leaf->OnPress(event);
 802     } else {
 803         m_dragging = m_split;
 804         m_drag_x = event.m_x;
 805         m_drag_y = event.m_y;
 806         DrawSash(m_drag_x, m_drag_y);
 807         m_container->CaptureMouse();
 808     }
 809 }
 810
 811 void wxDynamicSashWindowImpl::OnRelease(wxMouseEvent &event) {
 812     if ((m_dragging == DSR_CORNER) &&
 813         (m_window->GetWindowStyle() & wxDS_DRAG_CORNER) != 0) {
 814         DrawSash(m_drag_x, m_drag_y);
 815         m_container->ReleaseMouse();
 816
 817         Resize(event.m_x, event.m_y);
 818
 819         m_dragging = DSR_NONE;
 820     } else if (m_dragging) {
 821         DrawSash(m_drag_x, m_drag_y);
 822         m_container->ReleaseMouse();
 823
 824         wxSize size = m_container->GetSize();
 825         int px = (int)((event.m_x * 100) / size.GetWidth() + 0.5);
 826         int py = (int)((event.m_y * 100) / size.GetHeight() + 0.5);
 827
 828         if ((m_dragging == DSR_HORIZONTAL_TAB && py >= 10 && py <= 90)
 829                     || (m_dragging == DSR_VERTICAL_TAB && px >= 10 && px <= 90)) {
 830             if (m_child[0] == NULL) {
 831                 Split(px, py);
 832             } else {
 833                 /*  It would be nice if moving *this* sash didn't implicitly move
 834                     the sashes of our children (if any).  But this will do.  */
 835                 wxLayoutConstraints *layout = m_child[0]->m_container->GetConstraints();
 836                 if (m_split == DSR_HORIZONTAL_TAB) {
 837                     layout->height.PercentOf(m_container, wxHeight, py);
 838                 } else {
 839                     layout->width.PercentOf(m_container, wxWidth, px);
 840                 }
 841                 m_container->Layout();
 842             }
 843         } else {
 844             if (m_child[0] != NULL) {
 845                 if ((m_dragging == DSR_HORIZONTAL_TAB && py <= 10)
 846                         || (m_dragging == DSR_VERTICAL_TAB && px <= 10)) {
 847                     Unify(1);
 848                 } else {
 849                     Unify(0);
 850                 }
 851             }
 852         }
 853
 854         wxCursor cursor(wxCURSOR_ARROW);
 855         if (m_split == DSR_HORIZONTAL_TAB) {
 856             cursor = wxCursor(wxCURSOR_SIZENS);
 857         } else if (m_split == DSR_VERTICAL_TAB) {
 858             cursor = wxCursor(wxCURSOR_SIZEWE);
 859         }
 860         m_container->SetCursor(cursor);
 861
 862         m_dragging = DSR_NONE;
 863     } else if (m_leaf) {
 864         m_leaf->OnRelease(event);
 865     }
 866 }
 867
 868 // wxDynamicSashWindowLeaf //////////////////////////////////////////////////
 869
 870 wxDynamicSashWindowLeaf::wxDynamicSashWindowLeaf(wxDynamicSashWindowImpl *impl) {
 871     m_impl = impl;
 872
 873     m_hscroll = m_vscroll = NULL;
 874     m_child = NULL;
 875 }
 876
 877 wxDynamicSashWindowLeaf::~wxDynamicSashWindowLeaf() {
 878     m_hscroll->SetEventHandler(m_hscroll);
 879     m_vscroll->SetEventHandler(m_vscroll);
 880     m_viewport->SetEventHandler(m_viewport);
 881
 882     m_hscroll->Destroy();
 883     m_vscroll->Destroy();
 884     m_viewport->Destroy();
 885 }
 886
 887 bool wxDynamicSashWindowLeaf::Create() {
 888     bool success;
 889
 890     m_hscroll = new wxScrollBar();
 891     m_vscroll = new wxScrollBar();
 892     m_viewport = new wxWindow();
 893
 894     if (!m_hscroll || !m_vscroll || !m_viewport) {
 895         return false;
 896     }
 897
 898     wxDynamicSashWindowImpl *add_child_target = m_impl->m_add_child_target;
 899     m_impl->m_add_child_target = NULL;
 900     success = m_hscroll->Create(m_impl->m_container, wxID_ANY, wxDefaultPosition, wxDefaultSize,
 901                                 wxSB_HORIZONTAL);
 902     success = success && m_vscroll->Create(m_impl->m_container, wxID_ANY, wxDefaultPosition, wxDefaultSize,
 903                                             wxSB_VERTICAL);
 904     success = success && m_viewport->Create(m_impl->m_container, wxID_ANY);
 905     m_impl->m_add_child_target = add_child_target;
 906
 907     wxCursor cursor(wxCURSOR_ARROW);
 908     m_hscroll->SetCursor(cursor);
 909     m_vscroll->SetCursor(cursor);
 910     m_viewport->SetCursor(cursor);
 911
 912     m_viewport->SetEventHandler(this);
 913     Connect(wxID_ANY, wxEVT_DYNAMIC_SASH_REPARENT, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnReparent);
 914
 915     if (m_impl->m_window->GetWindowStyle() & wxDS_MANAGE_SCROLLBARS) {
 916         m_hscroll->SetEventHandler(this);
 917         m_vscroll->SetEventHandler(this);
 918
 919         Connect(wxID_ANY, wxEVT_SET_FOCUS, (wxObjectEventFunction)
 920                                      (wxEventFunction)
 921                                      (wxFocusEventFunction)&wxDynamicSashWindowLeaf::OnFocus);
 922         Connect(wxID_ANY, wxEVT_SCROLL_TOP, (wxObjectEventFunction)
 923                                       (wxEventFunction)
 924                                       (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 925         Connect(wxID_ANY, wxEVT_SCROLL_BOTTOM, (wxObjectEventFunction)
 926                                          (wxEventFunction)
 927                                          (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 928         Connect(wxID_ANY, wxEVT_SCROLL_LINEUP, (wxObjectEventFunction)
 929                                          (wxEventFunction)
 930                                          (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 931         Connect(wxID_ANY, wxEVT_SCROLL_LINEDOWN, (wxObjectEventFunction)
 932                                            (wxEventFunction)
 933                                            (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 934         Connect(wxID_ANY, wxEVT_SCROLL_PAGEUP, (wxObjectEventFunction)
 935                                          (wxEventFunction)
 936                                          (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 937         Connect(wxID_ANY, wxEVT_SCROLL_PAGEDOWN, (wxObjectEventFunction)
 938                                            (wxEventFunction)
 939                                            (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 940         Connect(wxID_ANY, wxEVT_SCROLL_THUMBTRACK, (wxObjectEventFunction)
 941                                              (wxEventFunction)
 942                                              (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 943         Connect(wxID_ANY, wxEVT_SCROLL_THUMBRELEASE, (wxObjectEventFunction)
 944                                                (wxEventFunction)
 945                                                (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 946     }
 947
 948     wxLayoutConstraints *layout = new wxLayoutConstraints();
 949     if (!layout)
 950         return false;
 951     wxSize size = m_hscroll->GetBestSize();
 952 #ifdef __WXMSW__
 953     size = m_hscroll->GetSize();
 954 #endif
 955
 956     layout->left.SameAs(m_impl->m_container, wxLeft, 10);
 957     layout->right.LeftOf(m_vscroll);
 958     layout->bottom.SameAs(m_impl->m_container, wxBottom, 3);
 959     layout->height.Absolute(size.GetHeight());
 960     m_hscroll->SetConstraints(layout);
 961
 962     layout = new wxLayoutConstraints();
 963     if (!layout)
 964         return false;
 965     size = size = m_vscroll->GetBestSize();
 966 #ifdef __WXMSW__
 967     size = m_vscroll->GetSize();
 968 #endif
 969
 970     layout->top.SameAs(m_impl->m_container, wxTop, 10);
 971     layout->bottom.Above(m_hscroll);
 972     layout->right.SameAs(m_impl->m_container, wxRight, 3);
 973     layout->width.Absolute(size.GetWidth());
 974     m_vscroll->SetConstraints(layout);
 975
 976     layout = new wxLayoutConstraints();
 977     if (!layout)
 978         return false;
 979     layout->left.SameAs(m_impl->m_container, wxLeft, 3);
 980     layout->right.LeftOf(m_vscroll);
 981     layout->top.SameAs(m_impl->m_container, wxTop, 3);
 982     layout->bottom.Above(m_hscroll);
 983     m_viewport->SetConstraints(layout);
 984
 985     m_impl->m_container->Layout();
 986
 987     return success;
 988 }
 989
 990 void wxDynamicSashWindowLeaf::AddChild(wxWindow *window) {
 991     if (m_child) {
 992         m_child->Destroy();
 993     }
 994
 995     m_child = window;
 996
 997     wxDynamicSashReparentEvent event(this);
 998     AddPendingEvent(event);
 999 }
1000
1001 DynamicSashRegion wxDynamicSashWindowLeaf::GetRegion(int x, int y) {
1002     wxSize size = m_impl->m_container->GetSize();
1003     int w = size.GetWidth();
1004     int h = size.GetHeight();
1005     size = m_hscroll->GetSize();
1006     int sh = size.GetHeight();
1007     size = m_vscroll->GetSize();
1008     int sw = size.GetWidth();
1009
1010     if (x >= w - sw - 3 && x < w && y >= h - sh - 3 && y < h)
1011         return DSR_CORNER;
1012     if (x >= 3 && x < 10 && y >= h - sh - 3 && y < h - 2)
1013         return DSR_VERTICAL_TAB;
1014     if (x >= w - sw - 3 && x < w - 2 && y >= 3 && y < 10)
1015         return DSR_HORIZONTAL_TAB;
1016     if (x < 3)
1017         return DSR_LEFT_EDGE;
1018     if (y < 3)
1019         return DSR_TOP_EDGE;
1020     if (x >= w - 2)
1021         return DSR_RIGHT_EDGE;
1022     if (y >= h - 2)
1023         return DSR_BOTTOM_EDGE;
1024
1025     return DSR_NONE;
1026 }
1027
1028 void wxDynamicSashWindowLeaf::ResizeChild(wxSize size) {
1029     if (m_child) {
1030         if (m_impl->m_window->GetWindowStyle() & wxDS_MANAGE_SCROLLBARS) {
1031             m_child->SetSize(size);
1032             wxSize best_size = m_child->GetBestSize();
1033             if (best_size.GetWidth() < size.GetWidth()) {
1034                 best_size.SetWidth(size.GetWidth());
1035             }
1036             if (best_size.GetHeight() < size.GetHeight()) {
1037                 best_size.SetHeight(size.GetHeight());
1038             }
1039             m_child->SetSize(best_size);
1040
1041             int hpos = m_hscroll->GetThumbPosition();
1042             int vpos = m_vscroll->GetThumbPosition();
1043
1044             if (hpos < 0) {
1045                 hpos = 0;
1046             }
1047             if (vpos < 0) {
1048                 vpos = 0;
1049             }
1050             if (hpos > best_size.GetWidth() - size.GetWidth()) {
1051                 hpos = best_size.GetWidth() - size.GetWidth();
1052             }
1053             if (vpos > best_size.GetHeight() - size.GetHeight()) {
1054                 vpos = best_size.GetHeight() - size.GetHeight();
1055             }
1056
1057             m_hscroll->SetScrollbar(hpos, size.GetWidth(),
1058                                     best_size.GetWidth(), size.GetWidth());
1059             m_vscroll->SetScrollbar(vpos, size.GetHeight(),
1060                                     best_size.GetHeight(), size.GetHeight());
1061
1062             //  Umm, the scrollbars are doing something insane under GTK+ and subtracting
1063             //  one from the position I pass in.  This works around that.
1064             m_hscroll->SetThumbPosition(hpos + hpos - m_hscroll->GetThumbPosition());
1065             m_vscroll->SetThumbPosition(vpos + vpos - m_vscroll->GetThumbPosition());
1066
1067             wxPoint pos = m_child->GetPosition();
1068             m_viewport->ScrollWindow(-hpos - pos.x, -vpos - pos.y);
1069         } else {
1070             m_child->SetSize(size);
1071         }
1072     }
1073 }
1074
1075 wxScrollBar *wxDynamicSashWindowLeaf::FindScrollBar(const wxWindow *child, int vert) const {
1076     if (m_child == child) {
1077         if (vert) {
1078             return m_vscroll;
1079         } else {
1080             return m_hscroll;
1081         }
1082     }
1083
1084     return NULL;
1085 }
1086
1087 void wxDynamicSashWindowLeaf::OnSize(wxSizeEvent &WXUNUSED(event)) {
1088     m_impl->m_container->Refresh();
1089     ResizeChild(m_viewport->GetSize());
1090 }
1091
1092 void wxDynamicSashWindowLeaf::OnPaint(wxPaintEvent &WXUNUSED(event)) {
1093     wxPaintDC dc(m_impl->m_container);
1094     dc.SetBackground(wxBrush(m_impl->m_container->GetBackgroundColour(), wxSOLID));
1095     dc.Clear();
1096
1097     wxPen highlight(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNHIGHLIGHT), 1, wxSOLID);
1098     wxPen shadow(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNSHADOW), 1, wxSOLID);
1099     wxPen black(*wxBLACK, 1, wxSOLID);
1100
1101     wxSize size = m_impl->m_container->GetSize();
1102     int w = size.GetWidth();
1103     int h = size.GetHeight();
1104     size = m_hscroll->GetSize();
1105     int sh = size.GetHeight();
1106     size = m_vscroll->GetSize();
1107     int sw = size.GetWidth();
1108
1109     dc.SetPen(shadow);
1110     dc.DrawLine(1, 1, 1, h - 2);
1111     dc.DrawLine(1, 1, w - 2, 1);
1112     dc.SetPen(black);
1113     dc.DrawLine(2, 2, 2, h - 3);
1114     dc.DrawLine(2, 2, w - 3, 2);
1115     dc.SetPen(highlight);
1116     dc.DrawLine(w - 2, 2, w - 2, h - sh - 2);
1117     dc.DrawLine(w - 2, h - sh - 2, w - sw - 2, h - sh - 2);
1118     dc.DrawLine(w - sw - 2, h - sh - 2, w - sw - 2, h - 2);
1119     dc.DrawLine(w - sw - 2, h - 2, 2, h - 2);
1120
1121     dc.SetPen(highlight);
1122     dc.DrawLine(w - sw - 2, 8, w - sw - 2, 4);
1123     dc.DrawLine(w - sw - 2, 4, w - 5, 4);
1124     dc.SetPen(shadow);
1125     dc.DrawLine(w - 5, 4, w - 5, 8);
1126     dc.DrawLine(w - 5, 8, w - sw - 2, 8);
1127     dc.SetPen(black);
1128     dc.DrawLine(w - 4, 3, w - 4, 9);
1129     dc.DrawLine(w - 4, 9, w - sw - 3, 9);
1130
1131     dc.SetPen(highlight);
1132     dc.DrawLine(4, h - 5, 4, h - sh - 2);
1133     dc.DrawLine(4, h - sh - 2, 8, h - sh - 2);
1134     dc.SetPen(shadow);
1135     dc.DrawLine(8, h - sh - 2, 8, h - 5);
1136     dc.DrawLine(8, h - 5, 4, h - 5);
1137     dc.SetPen(black);
1138     dc.DrawLine(9, h - sh - 3, 9, h - 4);
1139     dc.DrawLine(9, h - 4, 3, h - 4);
1140
1141     int cy = (h - sh + h - 6) / 2 + 1;
1142     int cx = (w - sw + w - 6) / 2 + 1;
1143     int sy = cy;
1144     while (sy > h - sh)
1145         sy -= 4;
1146     int sx = cx;
1147     while (sx > w - sw)
1148         sx -= 4;
1149
1150     int x, y;
1151     for (y = sy; y < h - 2; y += 4) {
1152         for (x = sx; x < w - 2; x += 4) {
1153             if (x - cx >= -(y - cy)) {
1154                 dc.SetPen(highlight);
1155                 dc.DrawPoint(x, y);
1156                 dc.SetPen(shadow);
1157                 dc.DrawPoint(x + 1, y + 1);
1158             }
1159         }
1160     }
1161 }
1162
1163 void wxDynamicSashWindowLeaf::OnScroll(wxScrollEvent &WXUNUSED(event)) {
1164     int nx = -m_hscroll->GetThumbPosition();
1165     int ny = -m_vscroll->GetThumbPosition();
1166
1167     if (m_child) {
1168         wxPoint pos = m_child->GetPosition();
1169
1170         m_viewport->ScrollWindow(nx - pos.x, ny - pos.y);
1171     }
1172 }
1173
1174 void wxDynamicSashWindowLeaf::OnFocus(wxFocusEvent &event) {
1175     if (event.m_eventObject == m_hscroll || event.m_eventObject == m_vscroll) {
1176         m_child->SetFocus();
1177     }
1178 }
1179
1180
1181 void wxDynamicSashWindowLeaf::OnMouseMove(wxMouseEvent &event) {
1182     if (m_impl->m_dragging) {
1183         return;
1184     }
1185
1186     DynamicSashRegion region = GetRegion(event.m_x, event.m_y);
1187
1188     wxCursor cursor(wxCURSOR_ARROW);
1189     if (region == DSR_HORIZONTAL_TAB) {
1190         cursor = wxCursor(wxCURSOR_SIZENS);
1191     } else if (region == DSR_VERTICAL_TAB) {
1192         cursor = wxCursor(wxCURSOR_SIZEWE);
1193     } else if ((region == DSR_CORNER) &&
1194                (m_impl->m_window->GetWindowStyle() & wxDS_DRAG_CORNER) != 0) {
1195         cursor = wxCursor(wxCURSOR_SIZENWSE);
1196     } else if (region == DSR_LEFT_EDGE || region == DSR_TOP_EDGE
1197                 || region == DSR_RIGHT_EDGE || region == DSR_BOTTOM_EDGE) {
1198         if (m_impl->FindParent(region)) {
1199             if (region == DSR_LEFT_EDGE || region == DSR_RIGHT_EDGE) {
1200                 cursor = wxCursor(wxCURSOR_SIZEWE);
1201             } else {
1202                 cursor = wxCursor(wxCURSOR_SIZENS);
1203             }
1204         }
1205     }
1206
1207     m_impl->m_container->SetCursor(cursor);
1208 }
1209
1210 void wxDynamicSashWindowLeaf::OnLeave(wxMouseEvent &WXUNUSED(event)) {
1211     wxCursor cursor(wxCURSOR_ARROW);
1212     m_impl->m_container->SetCursor(cursor);
1213 }
1214
1215
1216 void wxDynamicSashWindowLeaf::OnPress(wxMouseEvent &event) {
1217     DynamicSashRegion region = GetRegion(event.m_x, event.m_y);
1218
1219     if ((region == DSR_CORNER) && (m_impl->m_window->GetWindowStyle() & wxDS_DRAG_CORNER) == 0)
1220         return;
1221
1222     if (region == DSR_HORIZONTAL_TAB || region == DSR_VERTICAL_TAB || region == DSR_CORNER) {
1223         m_impl->m_dragging = region;
1224         m_impl->m_drag_x = event.m_x;
1225         m_impl->m_drag_y = event.m_y;
1226         m_impl->DrawSash(event.m_x, event.m_y);
1227         m_impl->m_container->CaptureMouse();
1228     } else if (region == DSR_LEFT_EDGE || region == DSR_TOP_EDGE
1229                 || region == DSR_RIGHT_EDGE || region == DSR_BOTTOM_EDGE) {
1230         wxDynamicSashWindowImpl *parent = m_impl->FindParent(region);
1231
1232         if (parent) {
1233             int x = event.m_x;
1234             int y = event.m_y;
1235
1236             m_impl->m_container->ClientToScreen(&x, &y);
1237             parent->m_container->ScreenToClient(&x, &y);
1238
1239             parent->m_dragging = parent->m_split;
1240             parent->m_drag_x = x;
1241             parent->m_drag_y = y;
1242             parent->DrawSash(x, y);
1243             parent->m_container->CaptureMouse();
1244         }
1245     }
1246 }
1247
1248 void wxDynamicSashWindowLeaf::OnRelease(wxMouseEvent &WXUNUSED(event)) {
1249 }
1250
1251 void wxDynamicSashWindowLeaf::OnReparent(wxEvent &WXUNUSED(event)) {
1252     if (m_child) {
1253         m_child->Reparent(m_viewport);
1254     }
1255
1256     ResizeChild(m_viewport->GetSize());
1257 }
1258
1259 // wxDynamicSashSplitEvent //////////////////////////////////////////////////
1260
1261 wxDynamicSashSplitEvent::wxDynamicSashSplitEvent() {
1262     m_eventObject = NULL;
1263     m_eventType = wxEVT_DYNAMIC_SASH_SPLIT;
1264 }
1265
1266 wxDynamicSashSplitEvent::wxDynamicSashSplitEvent(wxObject *object) {
1267     m_eventObject = object;
1268     m_eventType = wxEVT_DYNAMIC_SASH_SPLIT;
1269 }
1270
1271 IMPLEMENT_DYNAMIC_CLASS(wxDynamicSashSplitEvent, wxCommandEvent)
1272
1273 // wxDynamicSashUnifyEvent //////////////////////////////////////////////////
1274
1275 wxDynamicSashUnifyEvent::wxDynamicSashUnifyEvent() {
1276     m_eventObject = NULL;
1277     m_eventType = wxEVT_DYNAMIC_SASH_UNIFY;
1278 }
1279
1280 wxDynamicSashUnifyEvent::wxDynamicSashUnifyEvent(wxObject *object) {
1281     m_eventObject = object;
1282     m_eventType = wxEVT_DYNAMIC_SASH_UNIFY;
1283 }
1284
1285 IMPLEMENT_DYNAMIC_CLASS(wxDynamicSashUnifyEvent, wxCommandEvent)
1286
1287 // wxDynamicSsahReparentEvent ///////////////////////////////////////////////
1288
1289 wxDynamicSashReparentEvent::wxDynamicSashReparentEvent() {
1290     m_eventObject = NULL;
1291     m_eventType = wxEVT_DYNAMIC_SASH_REPARENT;
1292 }
1293
1294 wxDynamicSashReparentEvent::wxDynamicSashReparentEvent(wxObject *object) {
1295     m_eventObject = object;
1296     m_eventType = wxEVT_DYNAMIC_SASH_REPARENT;
1297 }
1298
1299 wxDynamicSashReparentEvent::wxDynamicSashReparentEvent(const wxDynamicSashReparentEvent& evt)
1300     : wxEvent(evt)
1301 {
1302 }
1303
1304 IMPLEMENT_DYNAMIC_CLASS(wxDynamicSashReparentEvent, wxEvent)
1305
1306 /////////////////////////////////////////////////////////////////////////////