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