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" wxWindows 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(-1, wxEVT_SIZE, (wxObjectEventFunction)&wxDynamicSashWindowImpl::OnSize);
 317     Connect(-1, wxEVT_PAINT, (wxObjectEventFunction)&wxDynamicSashWindowImpl::OnPaint);
 318     Connect(-1, wxEVT_MOTION, (wxObjectEventFunction)&wxDynamicSashWindowImpl::OnMouseMove);
 319     Connect(-1, wxEVT_ENTER_WINDOW, (wxObjectEventFunction)&wxDynamicSashWindowImpl::OnMouseMove);
 320     Connect(-1, wxEVT_LEAVE_WINDOW, (wxObjectEventFunction)&wxDynamicSashWindowImpl::OnLeave);
 321     Connect(-1, wxEVT_LEFT_DOWN, (wxObjectEventFunction)&wxDynamicSashWindowImpl::OnPress);
 322     Connect(-1, wxEVT_LEFT_UP, (wxObjectEventFunction)&wxDynamicSashWindowImpl::OnRelease);
 323
 324     return TRUE;
 325 }
 326
 327 void wxDynamicSashWindowImpl::AddChild(wxWindow *window) {
 328     if (m_add_child_target && m_add_child_target->m_leaf) {
 329         m_add_child_target->m_leaf->AddChild(window);
 330     }
 331 }
 332
 333 void wxDynamicSashWindowImpl::DrawSash(int x, int y) const {
 334     int i, j;
 335
 336     wxScreenDC dc;
 337     dc.StartDrawingOnTop(m_container);
 338
 339     wxBitmap bmp(8, 8);
 340     wxMemoryDC bdc;
 341     bdc.SelectObject(bmp);
 342     bdc.DrawRectangle(-1, -1, 10, 10);
 343     for (i = 0; i < 8; i++) {
 344         for (j = 0; j < 8; j++) {
 345             if ((i + j) & 1) {
 346                 bdc.DrawPoint(i, j);
 347             }
 348         }
 349     }
 350
 351     wxBrush brush(bmp);
 352     dc.SetBrush(brush);
 353     dc.SetLogicalFunction(wxXOR);
 354
 355     if ((m_dragging == DSR_CORNER) &&
 356         (m_window->GetWindowStyle() & wxDS_DRAG_CORNER) != 0) {
 357         int cx = 0;
 358         int cy = 0;
 359
 360         m_container->ClientToScreen(&cx, &cy);
 361         m_container->ClientToScreen(&x, &y);
 362
 363         if (cx < x && cy < y) {
 364             dc.DrawRectangle(cx - 2, cy - 2, x - cx + 4, 4);
 365             dc.DrawRectangle(x - 2, cy + 2, 4, y - cy);
 366             dc.DrawRectangle(cx - 2, cy + 2, 4, y - cy);
 367             dc.DrawRectangle(cx + 2, y - 2, x - cx - 4, 4);
 368         }
 369     } else {
 370         int body_w, body_h;
 371         m_container->GetClientSize(&body_w, &body_h);
 372
 373         if (y < 0)
 374             y = 0;
 375         if (y > body_h)
 376             y = body_h;
 377         if (x < 0)
 378             x = 0;
 379         if (x > body_w)
 380             x = body_w;
 381
 382         if (m_dragging == DSR_HORIZONTAL_TAB)
 383             x = 0;
 384         else
 385             y = 0;
 386
 387         m_container->ClientToScreen(&x, &y);
 388
 389         int w, h;
 390         w = body_w;  h = body_h;
 391
 392         if (m_dragging == DSR_HORIZONTAL_TAB)
 393             dc.DrawRectangle(x, y - 2, w, 4);
 394         else
 395             dc.DrawRectangle(x - 2, y, 4, h);
 396     }
 397
 398     dc.EndDrawingOnTop();
 399 }
 400
 401 wxDynamicSashWindowImpl *wxDynamicSashWindowImpl::FindParent(DynamicSashRegion side) const {
 402     if (m_parent == NULL) {
 403         return NULL;
 404     }
 405
 406     if (m_parent->m_split == DSR_HORIZONTAL_TAB) {
 407         if (side == DSR_TOP_EDGE && m_parent->m_child[1] == this)
 408             return m_parent;
 409         if (side == DSR_BOTTOM_EDGE && m_parent->m_child[0] == this)
 410             return m_parent;
 411     } else if (m_parent->m_split == DSR_VERTICAL_TAB) {
 412         if (side == DSR_LEFT_EDGE && m_parent->m_child[1] == this)
 413             return m_parent;
 414         if (side == DSR_RIGHT_EDGE && m_parent->m_child[0] == this)
 415             return m_parent;
 416     }
 417
 418     return m_parent->FindParent(side);
 419 }
 420
 421 wxDynamicSashWindowImpl *wxDynamicSashWindowImpl::FindUpperParent(wxDynamicSashWindowImpl *sash_a,
 422                                                                   wxDynamicSashWindowImpl *sash_b) const {
 423     wxWindow *win;
 424     win = sash_a->m_container->GetParent();
 425     while (win && !win->IsTopLevel()) {
 426         if (win == sash_b->m_container) {
 427             return sash_b;
 428         }
 429
 430         win = win->GetParent();
 431     }
 432
 433     return sash_a;
 434 }
 435
 436
 437 wxWindow *wxDynamicSashWindowImpl::FindFrame() const {
 438     wxWindow *win;
 439
 440     win = m_window->GetParent();
 441     while (win && !win->IsTopLevel()) {
 442         win = win->GetParent();
 443     }
 444
 445     return win;
 446 }
 447
 448 wxScrollBar *wxDynamicSashWindowImpl::FindScrollBar(const wxWindow *child, int vert) const {
 449     if (m_child[0] == NULL && m_leaf == NULL) {
 450         return NULL;
 451     }
 452
 453     if (!m_child[0]) {
 454         return m_leaf->FindScrollBar(child, vert);
 455     } else {
 456         wxScrollBar *ret = m_child[0]->FindScrollBar(child, vert);
 457         if (!ret) {
 458             ret = m_child[1]->FindScrollBar(child, vert);
 459         }
 460
 461         return ret;
 462     }
 463 }
 464
 465 void wxDynamicSashWindowImpl::ConstrainChildren(int px, int py) {
 466     wxLayoutConstraints *layout = new wxLayoutConstraints();
 467     layout->left.SameAs(m_container, wxLeft);
 468     layout->top.SameAs(m_container, wxTop);
 469     if (m_split == DSR_HORIZONTAL_TAB) {
 470         layout->right.SameAs(m_container, wxRight);
 471         layout->height.PercentOf(m_container, wxHeight, py);
 472     } else {
 473         layout->bottom.SameAs(m_container, wxBottom);
 474         layout->width.PercentOf(m_container, wxWidth, px);
 475     }
 476     m_child[0]->m_container->SetConstraints(layout);
 477
 478     layout = new wxLayoutConstraints();
 479     layout->right.SameAs(m_container, wxRight);
 480     layout->bottom.SameAs(m_container, wxBottom);
 481     if (m_split == DSR_HORIZONTAL_TAB) {
 482         layout->top.Below(m_child[0]->m_container, 1);
 483         layout->left.SameAs(m_container, wxLeft);
 484     } else {
 485         layout->left.RightOf(m_child[0]->m_container, 1);
 486         layout->top.SameAs(m_container, wxTop);
 487     }
 488     m_child[1]->m_container->SetConstraints(layout);
 489 }
 490
 491 void wxDynamicSashWindowImpl::Unify(int panel) {
 492     int other = 0;
 493     if (panel == 0) {
 494         other = 1;
 495     }
 496
 497     if (m_child[panel]->m_leaf) {
 498         wxDynamicSashWindowImpl *child[2];
 499
 500         child[0] = m_child[0];
 501         child[1] = m_child[1];
 502
 503         m_child[0] = m_child[1] = NULL;
 504
 505         m_leaf = new wxDynamicSashWindowLeaf(this);
 506         m_leaf->Create();
 507         m_leaf->m_child = child[panel]->m_leaf->m_child;
 508
 509         m_leaf->m_vscroll->SetScrollbar(child[panel]->m_leaf->m_vscroll->GetThumbPosition(),
 510                                         child[panel]->m_leaf->m_vscroll->GetThumbSize(),
 511                                         child[panel]->m_leaf->m_vscroll->GetRange(),
 512                                         child[panel]->m_leaf->m_vscroll->GetPageSize());
 513         m_leaf->m_hscroll->SetScrollbar(child[panel]->m_leaf->m_hscroll->GetThumbPosition(),
 514                                         child[panel]->m_leaf->m_hscroll->GetThumbSize(),
 515                                         child[panel]->m_leaf->m_hscroll->GetRange(),
 516                                         child[panel]->m_leaf->m_hscroll->GetPageSize());
 517         m_add_child_target = NULL;
 518         wxDynamicSashReparentEvent event(m_leaf);
 519         m_leaf->ProcessEvent(event);
 520
 521         delete child[0];
 522         delete child[1];
 523
 524         m_split = DSR_NONE;
 525
 526         wxDynamicSashUnifyEvent unify(m_leaf->m_child);
 527         m_leaf->m_child->ProcessEvent(unify);
 528     } else {
 529         m_split = m_child[panel]->m_split;
 530
 531         delete m_child[other];
 532
 533         wxDynamicSashWindowImpl *child_panel = m_child[panel];
 534         m_child[0] = child_panel->m_child[0];
 535         m_child[1] = child_panel->m_child[1];
 536
 537         m_child[0]->m_parent = this;
 538         m_child[1]->m_parent = this;
 539
 540         m_add_child_target = NULL;
 541         m_child[0]->m_container->Reparent(m_container);
 542         m_child[1]->m_container->Reparent(m_container);
 543
 544         child_panel->m_child[0] = child_panel->m_child[1] = NULL;
 545         delete child_panel;
 546
 547         wxSize size = m_container->GetSize();
 548         wxSize child_size = m_child[0]->m_container->GetSize();
 549
 550         ConstrainChildren(child_size.GetWidth() * 100 / size.GetWidth(),
 551                             child_size.GetHeight() * 100 / size.GetHeight());
 552
 553         m_container->Layout();
 554     }
 555 }
 556
 557 void wxDynamicSashWindowImpl::Split(int px, int py) {
 558
 559     m_add_child_target = NULL;
 560
 561     m_child[0] = new wxDynamicSashWindowImpl(m_window);
 562     m_child[0]->m_container = new wxWindow(m_container, -1);
 563     m_child[0]->m_parent = this;
 564     m_child[0]->m_top = m_top;
 565     m_child[0]->Create();
 566     if (m_leaf->m_child) {
 567         m_leaf->m_child->Reparent(m_container);
 568         m_child[0]->AddChild(m_leaf->m_child);
 569     }
 570
 571     m_child[1] = new wxDynamicSashWindowImpl(m_window);
 572     m_child[1]->m_container = new wxWindow(m_container, -1);
 573     m_child[1]->m_parent = this;
 574     m_child[1]->m_top = m_top;
 575     m_child[1]->Create();
 576
 577     m_split = m_dragging;
 578     ConstrainChildren(px, py);
 579
 580     m_top->m_add_child_target = m_child[1];
 581     wxDynamicSashSplitEvent split(m_child[0]->m_leaf->m_child);
 582     m_child[0]->m_leaf->m_child->ProcessEvent(split);
 583
 584     m_child[0]->m_leaf->m_vscroll->SetScrollbar(m_leaf->m_vscroll->GetThumbPosition(),
 585                                                 m_leaf->m_vscroll->GetThumbSize(),
 586                                                 m_leaf->m_vscroll->GetRange(),
 587                                                 m_leaf->m_vscroll->GetPageSize());
 588     m_child[0]->m_leaf->m_hscroll->SetScrollbar(m_leaf->m_hscroll->GetThumbPosition(),
 589                                                 m_leaf->m_hscroll->GetThumbSize(),
 590                                                 m_leaf->m_hscroll->GetRange(),
 591                                                 m_leaf->m_hscroll->GetPageSize());
 592     m_child[1]->m_leaf->m_vscroll->SetScrollbar(m_leaf->m_vscroll->GetThumbPosition(),
 593                                                 m_leaf->m_vscroll->GetThumbSize(),
 594                                                 m_leaf->m_vscroll->GetRange(),
 595                                                 m_leaf->m_vscroll->GetPageSize());
 596     m_child[1]->m_leaf->m_hscroll->SetScrollbar(m_leaf->m_hscroll->GetThumbPosition(),
 597                                                 m_leaf->m_hscroll->GetThumbSize(),
 598                                                 m_leaf->m_hscroll->GetRange(),
 599                                                 m_leaf->m_hscroll->GetPageSize());
 600     delete m_leaf;
 601     m_leaf = NULL;
 602
 603     m_container->Layout();
 604 }
 605
 606
 607 /*  This code is called when you finish resizing a view by dragging the
 608     corner tab, but I think this implementation is lousy and will surprise
 609     the user more often than it will do what they are trying to do.  What
 610     I really need to be doing here is do a rewrite such that *no* sashes
 611     move except the ones immediately to the bottom and right of this window,
 612     and handle the case where you resize a window larger than it's neighbors
 613     by destroying the neighbors.
 614
 615     But this will do for now.  */
 616 void wxDynamicSashWindowImpl::Resize(int x, int y) {
 617     wxDynamicSashWindowImpl *h_parent = FindParent(DSR_BOTTOM_EDGE);
 618     wxDynamicSashWindowImpl *v_parent = FindParent(DSR_RIGHT_EDGE);
 619     int h_unify = -1;
 620     int v_unify = -1;
 621     wxWindow *frame = FindFrame();
 622
 623     if (x < 0) {
 624         x = 0;
 625     }
 626     if (y < 0) {
 627         y = 0;
 628     }
 629
 630     if (h_parent) {
 631         m_container->ClientToScreen(NULL, &y);
 632         h_parent->m_container->ScreenToClient(NULL, &y);
 633
 634         int py = (int)((y * 100) / h_parent->m_container->GetSize().GetHeight() + 0.5);
 635
 636         if (py < 10) {
 637             wxDynamicSashWindowImpl *ho_parent = FindParent(DSR_TOP_EDGE);
 638
 639             if (ho_parent) {
 640                 if (FindUpperParent(h_parent, ho_parent) == ho_parent) {
 641                     h_unify = 1;
 642                 } else {
 643                     py = (int)((ho_parent->m_child[0]->m_container->GetSize().GetHeight() * 100)
 644                                 / h_parent->m_container->GetSize().GetHeight() + 0.5);
 645                     h_parent->m_child[0]->m_container->GetConstraints()->height.PercentOf(
 646                             h_parent->m_container, wxHeight, py);
 647
 648                     h_parent = ho_parent;
 649                     h_unify = 0;
 650                 }
 651             } else {
 652                 h_unify = 1;
 653             }
 654         } else if (py > 90) {
 655             h_unify = 0;
 656         } else {
 657             h_parent->m_child[0]->m_container->GetConstraints()->height.PercentOf(
 658                     h_parent->m_container, wxHeight, py);
 659             h_parent->m_container->Layout();
 660         }
 661     } else {
 662         int do_resize = 1;
 663         h_parent = FindParent(DSR_TOP_EDGE);
 664
 665         if (h_parent) {
 666             int py = (int)((y * 100) /
 667                         (h_parent->m_container->GetSize().GetHeight() +
 668                                 y - m_container->GetSize().GetHeight()) + 0.5);
 669
 670             if (py < 10) {
 671                 h_unify = 0;
 672             }
 673         } else if (y < 64) {
 674             do_resize = 0;
 675         }
 676
 677         if (do_resize) {
 678             wxSize size = frame->GetSize();
 679             frame->SetSize(size.GetWidth(), size.GetHeight() + y - m_container->GetSize().GetHeight());
 680         }
 681     }
 682
 683     if (v_parent) {
 684         m_container->ClientToScreen(&x, NULL);
 685         v_parent->m_container->ScreenToClient(&x, NULL);
 686
 687         int px = (int)((x * 100) / v_parent->m_container->GetSize().GetWidth() + 0.5);
 688
 689         if (px < 10) {
 690             wxDynamicSashWindowImpl *vo_parent = FindParent(DSR_LEFT_EDGE);
 691
 692             if (vo_parent) {
 693                 if (FindUpperParent(v_parent, vo_parent) == vo_parent) {
 694                     v_unify = 1;
 695                 } else {
 696                     px = (int)((vo_parent->m_child[0]->m_container->GetSize().GetWidth() * 100)
 697                                 / v_parent->m_container->GetSize().GetWidth() + 0.5);
 698                     v_parent->m_child[0]->m_container->GetConstraints()->width.PercentOf(
 699                             v_parent->m_container, wxWidth, px);
 700
 701                     v_parent = vo_parent;
 702                     v_unify = 0;
 703                 }
 704             } else {
 705                 v_unify = 1;
 706             }
 707         } else if (px > 90) {
 708             v_unify = 0;
 709         } else {
 710             v_parent->m_child[0]->m_container->GetConstraints()->width.PercentOf(
 711                     v_parent->m_container, wxWidth, px);
 712             v_parent->m_container->Layout();
 713         }
 714     } else {
 715         int do_resize = 1;
 716         v_parent = FindParent(DSR_LEFT_EDGE);
 717
 718         if (v_parent) {
 719             int px = (int)((x * 100) /
 720                         (v_parent->m_container->GetSize().GetWidth() +
 721                                 x - m_container->GetSize().GetWidth()) + 0.5);
 722
 723             if (px < 10) {
 724                 v_unify = 0;
 725             }
 726         } else if (x < 64) {
 727             do_resize = 0;
 728         }
 729
 730         if (do_resize) {
 731             wxSize size = frame->GetSize();
 732             frame->SetSize(size.GetWidth() + x - m_container->GetSize().GetWidth(), size.GetHeight());
 733         }
 734     }
 735
 736     if (h_unify != -1 && v_unify != -1) {
 737         wxDynamicSashWindowImpl *parent = FindUpperParent(h_parent, v_parent);
 738
 739         if (parent == h_parent) {
 740             h_parent->Unify(h_unify);
 741         } else {
 742             v_parent->Unify(v_unify);
 743         }
 744     } else if (h_unify != -1) {
 745         h_parent->Unify(h_unify);
 746     } else if (v_unify != -1) {
 747         v_parent->Unify(v_unify);
 748     }
 749 }
 750
 751
 752 void wxDynamicSashWindowImpl::OnSize(wxSizeEvent &event) {
 753     m_container->Layout();
 754
 755     if (m_leaf)
 756         m_leaf->OnSize(event);
 757 }
 758
 759 void wxDynamicSashWindowImpl::OnPaint(wxPaintEvent &event) {
 760     if (m_leaf)
 761         m_leaf->OnPaint(event);
 762     else {
 763         wxPaintDC dc(m_container);
 764         dc.SetBackground(wxBrush(m_container->GetBackgroundColour(), wxSOLID));
 765         dc.Clear();
 766     }
 767 }
 768
 769 void wxDynamicSashWindowImpl::OnMouseMove(wxMouseEvent &event) {
 770     if (m_dragging) {
 771         DrawSash(m_drag_x, m_drag_y);
 772         m_drag_x = event.m_x;  m_drag_y = event.m_y;
 773         DrawSash(m_drag_x, m_drag_y);
 774     } else if (m_leaf) {
 775         m_leaf->OnMouseMove(event);
 776     }
 777 }
 778
 779 void wxDynamicSashWindowImpl::OnLeave(wxMouseEvent &event) {
 780     if (m_leaf) {
 781         m_leaf->OnLeave(event);
 782     }
 783 }
 784
 785 void wxDynamicSashWindowImpl::OnPress(wxMouseEvent &event) {
 786     if (m_leaf) {
 787         m_leaf->OnPress(event);
 788     } else {
 789         m_dragging = m_split;
 790         m_drag_x = event.m_x;
 791         m_drag_y = event.m_y;
 792         DrawSash(m_drag_x, m_drag_y);
 793         m_container->CaptureMouse();
 794     }
 795 }
 796
 797 void wxDynamicSashWindowImpl::OnRelease(wxMouseEvent &event) {
 798     if ((m_dragging == DSR_CORNER) &&
 799         (m_window->GetWindowStyle() & wxDS_DRAG_CORNER) != 0) {
 800         DrawSash(m_drag_x, m_drag_y);
 801         m_container->ReleaseMouse();
 802
 803         Resize(event.m_x, event.m_y);
 804
 805         m_dragging = DSR_NONE;
 806     } else if (m_dragging) {
 807         DrawSash(m_drag_x, m_drag_y);
 808         m_container->ReleaseMouse();
 809
 810         wxSize size = m_container->GetSize();
 811         int px = (int)((event.m_x * 100) / size.GetWidth() + 0.5);
 812         int py = (int)((event.m_y * 100) / size.GetHeight() + 0.5);
 813
 814         if ((m_dragging == DSR_HORIZONTAL_TAB && py >= 10 && py <= 90)
 815                     || (m_dragging == DSR_VERTICAL_TAB && px >= 10 && px <= 90)) {
 816             if (m_child[0] == NULL) {
 817                 Split(px, py);
 818             } else {
 819                 /*  It would be nice if moving *this* sash didn't implicitly move
 820                     the sashes of our children (if any).  But this will do.  */
 821                 wxLayoutConstraints *layout = m_child[0]->m_container->GetConstraints();
 822                 if (m_split == DSR_HORIZONTAL_TAB) {
 823                     layout->height.PercentOf(m_container, wxHeight, py);
 824                 } else {
 825                     layout->width.PercentOf(m_container, wxWidth, px);
 826                 }
 827                 m_container->Layout();
 828             }
 829         } else {
 830             if (m_child[0] != NULL) {
 831                 if ((m_dragging == DSR_HORIZONTAL_TAB && py <= 10)
 832                         || (m_dragging == DSR_VERTICAL_TAB && px <= 10)) {
 833                     Unify(1);
 834                 } else {
 835                     Unify(0);
 836                 }
 837             }
 838         }
 839
 840         wxCursor cursor(wxCURSOR_ARROW);
 841         if (m_split == DSR_HORIZONTAL_TAB) {
 842             cursor = wxCursor(wxCURSOR_SIZENS);
 843         } else if (m_split == DSR_VERTICAL_TAB) {
 844             cursor = wxCursor(wxCURSOR_SIZEWE);
 845         }
 846         m_container->SetCursor(cursor);
 847
 848         m_dragging = DSR_NONE;
 849     } else if (m_leaf) {
 850         m_leaf->OnRelease(event);
 851     }
 852 }
 853
 854 // wxDynamicSashWindowLeaf //////////////////////////////////////////////////
 855
 856 wxDynamicSashWindowLeaf::wxDynamicSashWindowLeaf(wxDynamicSashWindowImpl *impl) {
 857     m_impl = impl;
 858
 859     m_hscroll = m_vscroll = NULL;
 860     m_child = NULL;
 861 }
 862
 863 wxDynamicSashWindowLeaf::~wxDynamicSashWindowLeaf() {
 864     m_hscroll->SetEventHandler(m_hscroll);
 865     m_vscroll->SetEventHandler(m_vscroll);
 866     m_viewport->SetEventHandler(m_viewport);
 867
 868     m_hscroll->Destroy();
 869     m_vscroll->Destroy();
 870     m_viewport->Destroy();
 871 }
 872
 873 bool wxDynamicSashWindowLeaf::Create() {
 874     bool success;
 875
 876     m_hscroll = new wxScrollBar();
 877     m_vscroll = new wxScrollBar();
 878     m_viewport = new wxWindow();
 879
 880     if (!m_hscroll || !m_vscroll || !m_viewport) {
 881         return FALSE;
 882     }
 883
 884     wxDynamicSashWindowImpl *add_child_target = m_impl->m_add_child_target;
 885     m_impl->m_add_child_target = NULL;
 886     success = m_hscroll->Create(m_impl->m_container, -1, wxDefaultPosition, wxDefaultSize,
 887                                 wxSB_HORIZONTAL);
 888     success = success && m_vscroll->Create(m_impl->m_container, -1, wxDefaultPosition, wxDefaultSize,
 889                                             wxSB_VERTICAL);
 890     success = success && m_viewport->Create(m_impl->m_container, -1);
 891     m_impl->m_add_child_target = add_child_target;
 892
 893     wxCursor cursor(wxCURSOR_ARROW);
 894     m_hscroll->SetCursor(cursor);
 895     m_vscroll->SetCursor(cursor);
 896     m_viewport->SetCursor(cursor);
 897
 898     m_viewport->SetEventHandler(this);
 899     Connect(-1, wxEVT_DYNAMIC_SASH_REPARENT, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnReparent);
 900
 901     if (m_impl->m_window->GetWindowStyle() & wxDS_MANAGE_SCROLLBARS) {
 902         m_hscroll->SetEventHandler(this);
 903         m_vscroll->SetEventHandler(this);
 904
 905         Connect(-1, wxEVT_SET_FOCUS, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnFocus);
 906         Connect(-1, wxEVT_SCROLL_TOP, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 907         Connect(-1, wxEVT_SCROLL_BOTTOM, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 908         Connect(-1, wxEVT_SCROLL_LINEUP, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 909         Connect(-1, wxEVT_SCROLL_LINEDOWN, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 910         Connect(-1, wxEVT_SCROLL_PAGEUP, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 911         Connect(-1, wxEVT_SCROLL_PAGEDOWN, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 912         Connect(-1, wxEVT_SCROLL_THUMBTRACK, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 913         Connect(-1, wxEVT_SCROLL_THUMBRELEASE, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 914     }
 915
 916     wxLayoutConstraints *layout = new wxLayoutConstraints();
 917     if (!layout)
 918         return FALSE;
 919     wxSize size = m_hscroll->GetBestSize();
 920 #ifdef __WXMSW__
 921     size = m_hscroll->GetSize();
 922 #endif
 923
 924     layout->left.SameAs(m_impl->m_container, wxLeft, 10);
 925     layout->right.LeftOf(m_vscroll);
 926     layout->bottom.SameAs(m_impl->m_container, wxBottom, 3);
 927     layout->height.Absolute(size.GetHeight());
 928     m_hscroll->SetConstraints(layout);
 929
 930     layout = new wxLayoutConstraints();
 931     if (!layout)
 932         return FALSE;
 933     size = size = m_vscroll->GetBestSize();
 934 #ifdef __WXMSW__
 935     size = m_vscroll->GetSize();
 936 #endif
 937
 938     layout->top.SameAs(m_impl->m_container, wxTop, 10);
 939     layout->bottom.Above(m_hscroll);
 940     layout->right.SameAs(m_impl->m_container, wxRight, 3);
 941     layout->width.Absolute(size.GetWidth());
 942     m_vscroll->SetConstraints(layout);
 943
 944     layout = new wxLayoutConstraints();
 945     if (!layout)
 946         return FALSE;
 947     layout->left.SameAs(m_impl->m_container, wxLeft, 3);
 948     layout->right.LeftOf(m_vscroll);
 949     layout->top.SameAs(m_impl->m_container, wxTop, 3);
 950     layout->bottom.Above(m_hscroll);
 951     m_viewport->SetConstraints(layout);
 952
 953     m_impl->m_container->Layout();
 954
 955     return success;
 956 }
 957
 958 void wxDynamicSashWindowLeaf::AddChild(wxWindow *window) {
 959     if (m_child) {
 960         m_child->Destroy();
 961     }
 962
 963     m_child = window;
 964
 965     wxDynamicSashReparentEvent event(this);
 966     AddPendingEvent(event);
 967 }
 968
 969 DynamicSashRegion wxDynamicSashWindowLeaf::GetRegion(int x, int y) {
 970     wxSize size = m_impl->m_container->GetSize();
 971     int w = size.GetWidth();
 972     int h = size.GetHeight();
 973     size = m_hscroll->GetSize();
 974     int sh = size.GetHeight();
 975     size = m_vscroll->GetSize();
 976     int sw = size.GetWidth();
 977
 978     if (x >= w - sw - 3 && x < w && y >= h - sh - 3 && y < h)
 979         return DSR_CORNER;
 980     if (x >= 3 && x < 10 && y >= h - sh - 3 && y < h - 2)
 981         return DSR_VERTICAL_TAB;
 982     if (x >= w - sw - 3 && x < w - 2 && y >= 3 && y < 10)
 983         return DSR_HORIZONTAL_TAB;
 984     if (x < 3)
 985         return DSR_LEFT_EDGE;
 986     if (y < 3)
 987         return DSR_TOP_EDGE;
 988     if (x >= w - 2)
 989         return DSR_RIGHT_EDGE;
 990     if (y >= h - 2)
 991         return DSR_BOTTOM_EDGE;
 992
 993     return DSR_NONE;
 994 }
 995
 996 void wxDynamicSashWindowLeaf::ResizeChild(wxSize size) {
 997     if (m_child) {
 998         if (m_impl->m_window->GetWindowStyle() & wxDS_MANAGE_SCROLLBARS) {
 999             m_child->SetSize(size);
1000             wxSize best_size = m_child->GetBestSize();
1001             if (best_size.GetWidth() < size.GetWidth()) {
1002                 best_size.SetWidth(size.GetWidth());
1003             }
1004             if (best_size.GetHeight() < size.GetHeight()) {
1005                 best_size.SetHeight(size.GetHeight());
1006             }
1007             m_child->SetSize(best_size);
1008
1009             int hpos = m_hscroll->GetThumbPosition();
1010             int vpos = m_vscroll->GetThumbPosition();
1011
1012             if (hpos < 0) {
1013                 hpos = 0;
1014             }
1015             if (vpos < 0) {
1016                 vpos = 0;
1017             }
1018             if (hpos > best_size.GetWidth() - size.GetWidth()) {
1019                 hpos = best_size.GetWidth() - size.GetWidth();
1020             }
1021             if (vpos > best_size.GetHeight() - size.GetHeight()) {
1022                 vpos = best_size.GetHeight() - size.GetHeight();
1023             }
1024
1025             m_hscroll->SetScrollbar(hpos, size.GetWidth(),
1026                                     best_size.GetWidth(), size.GetWidth());
1027             m_vscroll->SetScrollbar(vpos, size.GetHeight(),
1028                                     best_size.GetHeight(), size.GetHeight());
1029
1030             //  Umm, the scrollbars are doing something insane under GTK+ and subtracting
1031             //  one from the position I pass in.  This works around that.
1032             m_hscroll->SetThumbPosition(hpos + hpos - m_hscroll->GetThumbPosition());
1033             m_vscroll->SetThumbPosition(vpos + vpos - m_vscroll->GetThumbPosition());
1034
1035             wxPoint pos = m_child->GetPosition();
1036             m_viewport->ScrollWindow(-hpos - pos.x, -vpos - pos.y);
1037         } else {
1038             m_child->SetSize(size);
1039         }
1040     }
1041 }
1042
1043 wxScrollBar *wxDynamicSashWindowLeaf::FindScrollBar(const wxWindow *child, int vert) const {
1044     if (m_child == child) {
1045         if (vert) {
1046             return m_vscroll;
1047         } else {
1048             return m_hscroll;
1049         }
1050     }
1051
1052     return NULL;
1053 }
1054
1055 void wxDynamicSashWindowLeaf::OnSize(wxSizeEvent &event) {
1056     m_impl->m_container->Refresh();
1057     ResizeChild(m_viewport->GetSize());
1058 }
1059
1060 void wxDynamicSashWindowLeaf::OnPaint(wxPaintEvent &event) {
1061     wxPaintDC dc(m_impl->m_container);
1062     dc.SetBackground(wxBrush(m_impl->m_container->GetBackgroundColour(), wxSOLID));
1063     dc.Clear();
1064
1065     wxPen highlight(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNHIGHLIGHT), 1, wxSOLID);
1066     wxPen shadow(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNSHADOW), 1, wxSOLID);
1067     wxPen black(*wxBLACK, 1, wxSOLID);
1068
1069     wxSize size = m_impl->m_container->GetSize();
1070     int w = size.GetWidth();
1071     int h = size.GetHeight();
1072     size = m_hscroll->GetSize();
1073     int sh = size.GetHeight();
1074     size = m_vscroll->GetSize();
1075     int sw = size.GetWidth();
1076
1077     dc.SetPen(shadow);
1078     dc.DrawLine(1, 1, 1, h - 2);
1079     dc.DrawLine(1, 1, w - 2, 1);
1080     dc.SetPen(black);
1081     dc.DrawLine(2, 2, 2, h - 3);
1082     dc.DrawLine(2, 2, w - 3, 2);
1083     dc.SetPen(highlight);
1084     dc.DrawLine(w - 2, 2, w - 2, h - sh - 2);
1085     dc.DrawLine(w - 2, h - sh - 2, w - sw - 2, h - sh - 2);
1086     dc.DrawLine(w - sw - 2, h - sh - 2, w - sw - 2, h - 2);
1087     dc.DrawLine(w - sw - 2, h - 2, 2, h - 2);
1088
1089     dc.SetPen(highlight);
1090     dc.DrawLine(w - sw - 2, 8, w - sw - 2, 4);
1091     dc.DrawLine(w - sw - 2, 4, w - 5, 4);
1092     dc.SetPen(shadow);
1093     dc.DrawLine(w - 5, 4, w - 5, 8);
1094     dc.DrawLine(w - 5, 8, w - sw - 2, 8);
1095     dc.SetPen(black);
1096     dc.DrawLine(w - 4, 3, w - 4, 9);
1097     dc.DrawLine(w - 4, 9, w - sw - 3, 9);
1098
1099     dc.SetPen(highlight);
1100     dc.DrawLine(4, h - 5, 4, h - sh - 2);
1101     dc.DrawLine(4, h - sh - 2, 8, h - sh - 2);
1102     dc.SetPen(shadow);
1103     dc.DrawLine(8, h - sh - 2, 8, h - 5);
1104     dc.DrawLine(8, h - 5, 4, h - 5);
1105     dc.SetPen(black);
1106     dc.DrawLine(9, h - sh - 3, 9, h - 4);
1107     dc.DrawLine(9, h - 4, 3, h - 4);
1108
1109     int cy = (h - sh + h - 6) / 2 + 1;
1110     int cx = (w - sw + w - 6) / 2 + 1;
1111     int sy = cy;
1112     while (sy > h - sh)
1113         sy -= 4;
1114     int sx = cx;
1115     while (sx > w - sw)
1116         sx -= 4;
1117
1118     int x, y;
1119     for (y = sy; y < h - 2; y += 4) {
1120         for (x = sx; x < w - 2; x += 4) {
1121             if (x - cx >= -(y - cy)) {
1122                 dc.SetPen(highlight);
1123                 dc.DrawPoint(x, y);
1124                 dc.SetPen(shadow);
1125                 dc.DrawPoint(x + 1, y + 1);
1126             }
1127         }
1128     }
1129 }
1130
1131 void wxDynamicSashWindowLeaf::OnScroll(wxScrollEvent &event) {
1132     int nx = -m_hscroll->GetThumbPosition();
1133     int ny = -m_vscroll->GetThumbPosition();
1134
1135     if (m_child) {
1136         wxPoint pos = m_child->GetPosition();
1137
1138         m_viewport->ScrollWindow(nx - pos.x, ny - pos.y);
1139     }
1140 }
1141
1142 void wxDynamicSashWindowLeaf::OnFocus(wxFocusEvent &event) {
1143     if (event.m_eventObject == m_hscroll || event.m_eventObject == m_vscroll) {
1144         m_child->SetFocus();
1145     }
1146 }
1147
1148
1149 void wxDynamicSashWindowLeaf::OnMouseMove(wxMouseEvent &event) {
1150     if (m_impl->m_dragging) {
1151         return;
1152     }
1153
1154     DynamicSashRegion region = GetRegion(event.m_x, event.m_y);
1155
1156     wxCursor cursor(wxCURSOR_ARROW);
1157     if (region == DSR_HORIZONTAL_TAB) {
1158         cursor = wxCursor(wxCURSOR_SIZENS);
1159     } else if (region == DSR_VERTICAL_TAB) {
1160         cursor = wxCursor(wxCURSOR_SIZEWE);
1161     } else if ((region == DSR_CORNER) &&
1162                (m_impl->m_window->GetWindowStyle() & wxDS_DRAG_CORNER) != 0) {
1163         cursor = wxCursor(wxCURSOR_SIZENWSE);
1164     } else if (region == DSR_LEFT_EDGE || region == DSR_TOP_EDGE
1165                 || region == DSR_RIGHT_EDGE || region == DSR_BOTTOM_EDGE) {
1166         if (m_impl->FindParent(region)) {
1167             if (region == DSR_LEFT_EDGE || region == DSR_RIGHT_EDGE) {
1168                 cursor = wxCursor(wxCURSOR_SIZEWE);
1169             } else {
1170                 cursor = wxCursor(wxCURSOR_SIZENS);
1171             }
1172         }
1173     }
1174
1175     m_impl->m_container->SetCursor(cursor);
1176 }
1177
1178 void wxDynamicSashWindowLeaf::OnLeave(wxMouseEvent &event) {
1179     wxCursor cursor(wxCURSOR_ARROW);
1180     m_impl->m_container->SetCursor(cursor);
1181 }
1182
1183
1184 void wxDynamicSashWindowLeaf::OnPress(wxMouseEvent &event) {
1185     DynamicSashRegion region = GetRegion(event.m_x, event.m_y);
1186
1187     if ((region == DSR_CORNER) && (m_impl->m_window->GetWindowStyle() & wxDS_DRAG_CORNER) == 0)
1188         return;
1189
1190     if (region == DSR_HORIZONTAL_TAB || region == DSR_VERTICAL_TAB || region == DSR_CORNER) {
1191         m_impl->m_dragging = region;
1192         m_impl->m_drag_x = event.m_x;
1193         m_impl->m_drag_y = event.m_y;
1194         m_impl->DrawSash(event.m_x, event.m_y);
1195         m_impl->m_container->CaptureMouse();
1196     } else if (region == DSR_LEFT_EDGE || region == DSR_TOP_EDGE
1197                 || region == DSR_RIGHT_EDGE || region == DSR_BOTTOM_EDGE) {
1198         wxDynamicSashWindowImpl *parent = m_impl->FindParent(region);
1199
1200         if (parent) {
1201             int x = event.m_x;
1202             int y = event.m_y;
1203
1204             m_impl->m_container->ClientToScreen(&x, &y);
1205             parent->m_container->ScreenToClient(&x, &y);
1206
1207             parent->m_dragging = parent->m_split;
1208             parent->m_drag_x = x;
1209             parent->m_drag_y = y;
1210             parent->DrawSash(x, y);
1211             parent->m_container->CaptureMouse();
1212         }
1213     }
1214 }
1215
1216 void wxDynamicSashWindowLeaf::OnRelease(wxMouseEvent &event) {
1217 }
1218
1219 void wxDynamicSashWindowLeaf::OnReparent(wxEvent &event) {
1220     if (m_child) {
1221         m_child->Reparent(m_viewport);
1222     }
1223
1224     ResizeChild(m_viewport->GetSize());
1225 }
1226
1227 // wxDynamicSashSplitEvent //////////////////////////////////////////////////
1228
1229 wxDynamicSashSplitEvent::wxDynamicSashSplitEvent() {
1230     m_eventObject = NULL;
1231     m_eventType = wxEVT_DYNAMIC_SASH_SPLIT;
1232 }
1233
1234 wxDynamicSashSplitEvent::wxDynamicSashSplitEvent(wxObject *object) {
1235     m_eventObject = object;
1236     m_eventType = wxEVT_DYNAMIC_SASH_SPLIT;
1237 }
1238
1239 IMPLEMENT_DYNAMIC_CLASS(wxDynamicSashSplitEvent, wxCommandEvent)
1240
1241 // wxDynamicSashUnifyEvent //////////////////////////////////////////////////
1242
1243 wxDynamicSashUnifyEvent::wxDynamicSashUnifyEvent() {
1244     m_eventObject = NULL;
1245     m_eventType = wxEVT_DYNAMIC_SASH_UNIFY;
1246 }
1247
1248 wxDynamicSashUnifyEvent::wxDynamicSashUnifyEvent(wxObject *object) {
1249     m_eventObject = object;
1250     m_eventType = wxEVT_DYNAMIC_SASH_UNIFY;
1251 }
1252
1253 IMPLEMENT_DYNAMIC_CLASS(wxDynamicSashUnifyEvent, wxCommandEvent)
1254
1255 // wxDynamicSsahReparentEvent ///////////////////////////////////////////////
1256
1257 wxDynamicSashReparentEvent::wxDynamicSashReparentEvent() {
1258     m_eventObject = NULL;
1259     m_eventType = wxEVT_DYNAMIC_SASH_REPARENT;
1260 }
1261
1262 wxDynamicSashReparentEvent::wxDynamicSashReparentEvent(wxObject *object) {
1263     m_eventObject = object;
1264     m_eventType = wxEVT_DYNAMIC_SASH_REPARENT;
1265 }
1266
1267 wxDynamicSashReparentEvent::wxDynamicSashReparentEvent(const wxDynamicSashReparentEvent& evt)
1268     : wxEvent(evt)
1269 {
1270 }
1271
1272 IMPLEMENT_DYNAMIC_CLASS(wxDynamicSashReparentEvent, wxEvent)
1273
1274 /////////////////////////////////////////////////////////////////////////////