contrib/src/gizmos/dynamicsash.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dynamicsash.cpp
   3 // Purpose:     A window which can be dynamically split to an arbitrary depth
   4 //              and later reunified through the user interface
   5 // Author:      Matt Kimball
   6 // Modified by:
   7 // Created:     7/15/2001
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2001 Matt Kimball
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 #ifdef __GNUG__
  14     #pragma implementation "splittree.h"
  15 #endif
  16
  17 // For compilers that support precompilation, includes "wx/wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21     #pragma hdrstop
  22 #endif
  23
  24 // for all others, include the necessary headers (this file is usually all you
  25 // need because it includes almost all "standard" wxWidgets headers)
  26 #ifndef WX_PRECOMP
  27     #include "wx/wx.h"
  28 #endif
  29
  30 #ifdef __WXMSW__
  31 #include "wx/mdi.h"
  32 #endif
  33
  34 #include "wx/gizmos/dynamicsash.h"
  35
  36
  37 const wxChar* wxDynamicSashWindowNameStr = wxT("dynamicSashWindow");
  38
  39
  40 /*
  41     wxDynamicSashWindow works by internally storing a tree of Implementation
  42     objects (wxDynamicSsahWindowImpl) and Leaf objects
  43     (wxDynamicSashWindowLeaf).  The wxDynamicSashWindow has a pointer to one
  44     implementation, and each implementation either has a pointer to a one
  45     leaf (m_leaf) or a pointer to two children implementation objects
  46     (m_child).  The leaves each are responsible for drawing the frame and
  47     decorations around one user-provided views and for responding to mouse
  48     and scrollbar events.
  49
  50     A resulting tree might look something like this:
  51
  52     wxDynamicSashWindow
  53      |
  54      +- wxDynamicSashWindowImpl
  55          |
  56          +- wxDynamicSashWindowLeaf
  57          |   |
  58          |   +- user view window
  59          |
  60          +- wxDynamicSashWindowImpl
  61              |
  62              +- wxDynamicSashWindowLeaf
  63              |   |
  64              |   +- user view window
  65              |
  66              +- wxDynamicSashWindowLeaf
  67                  |
  68                  +- user view window
  69
  70     Each time a split occurs, one of the implementation objects removes its
  71     leaf, generates two new implementation object children, each with a new
  72     leaf, and reparents the user view which was connected to its old leaf
  73     to be one of the new leaf's user view, and sends a Split event to the
  74     user view in the hopes that it will generate a new user view for the
  75     other new leaf.
  76
  77     When a unification ocurrs, an implementation object is replaced by one
  78     of its children, and the tree of its other child is pruned.
  79
  80     One quirk is that the top-level implementation object (m_top) always
  81     keeps a pointer to the implementation object where a new child is needed.
  82     (m_add_child_target).  This is so that when a new uesr view is added
  83     to the hierarchy, AddChild() is able to reparent the new user view to
  84     the correct implementation object's leaf.
  85
  86 */
  87
  88 #include <wx/dcmemory.h>
  89 #include <wx/dcscreen.h>
  90 #include <wx/layout.h>
  91 #include <wx/scrolbar.h>
  92 #include <wx/settings.h>
  93
  94
  95 #define wxEVT_DYNAMIC_SASH_PRIVATE          (wxEVT_DYNAMIC_SASH_BASE + 8)
  96 #define wxEVT_DYNAMIC_SASH_REPARENT         (wxEVT_DYNAMIC_SASH_PRIVATE + 1)
  97
  98
  99 /*
 100     wxDynamicSashReparentEvent is generated by the AddChild() method of
 101     wxDynamicSashWindow when it wants a Leaf to reparent a user view window
 102     to its viewport at some time in the future.  We can't reparent the window
 103     immediately, because switching parents in AddChild() confuses the wxWindow
 104     class.  Instead, we queue up this event, and the window is actually
 105     reparented the next time we process events in the idle loop.
 106 */
 107 class wxDynamicSashReparentEvent : public wxEvent {
 108 public:
 109     wxDynamicSashReparentEvent();
 110     wxDynamicSashReparentEvent(wxObject *object);
 111     wxDynamicSashReparentEvent(const wxDynamicSashReparentEvent& evt);
 112
 113     virtual wxEvent* Clone() const { return new wxDynamicSashReparentEvent(*this); }
 114
 115     DECLARE_DYNAMIC_CLASS(wxDynamicSashReparentEvent);
 116 };
 117
 118
 119 enum DynamicSashRegion {
 120     DSR_NONE,
 121     DSR_VERTICAL_TAB,
 122     DSR_HORIZONTAL_TAB,
 123     DSR_CORNER,
 124     DSR_LEFT_EDGE,
 125     DSR_TOP_EDGE,
 126     DSR_RIGHT_EDGE,
 127     DSR_BOTTOM_EDGE
 128 };
 129
 130
 131 class wxDynamicSashWindowImpl : public wxEvtHandler {
 132 public:
 133     wxDynamicSashWindowImpl(wxDynamicSashWindow *window);
 134     ~wxDynamicSashWindowImpl();
 135
 136     bool Create();
 137     void AddChild(wxWindow *window);
 138     void DrawSash(int x, int y) const;
 139     void ConstrainChildren(int px, int py);
 140     void Split(int x, int y);
 141     void Unify(int panel);
 142     void Resize(int x, int y);
 143     wxDynamicSashWindowImpl *FindParent(DynamicSashRegion side) const;
 144     wxDynamicSashWindowImpl *FindUpperParent(wxDynamicSashWindowImpl *sash_a,
 145                                              wxDynamicSashWindowImpl *sash_b) const;
 146     wxWindow *FindFrame() const;
 147     wxScrollBar *FindScrollBar(const wxWindow *child, int vert) const;
 148
 149     void OnSize(wxSizeEvent &event);
 150     void OnPaint(wxPaintEvent &event);
 151     void OnMouseMove(wxMouseEvent &event);
 152     void OnLeave(wxMouseEvent &event);
 153     void OnPress(wxMouseEvent &event);
 154     void OnRelease(wxMouseEvent &event);
 155
 156     wxDynamicSashWindow *m_window;
 157     wxDynamicSashWindowImpl *m_add_child_target;
 158
 159     /*  This is the window we are responsible for managing.  Either of
 160         leaf or our children are in this window.  For the top level
 161         implementation object, this is the same as m_window.
 162         Otherwise it is a window we've created an will destroy when we
 163         are deleted.  */
 164     wxWindow *m_container;
 165
 166     wxDynamicSashWindowImpl *m_parent;
 167     wxDynamicSashWindowImpl *m_top;
 168     wxDynamicSashWindowImpl *m_child[2];
 169
 170     class wxDynamicSashWindowLeaf *m_leaf;
 171
 172     /*  If the implementation is split horizontally or vertically, m_split
 173         is set to DSR_HORIZONTAL_TAB or DSR_VERTICAL_TAB, respectively.
 174         Otherwise it is set to DSR_NONE.  */
 175     DynamicSashRegion m_split;
 176
 177     /*  These are used to keep track of a sash as it is being dragged, for
 178         drawing the user interface correctly.  */
 179     DynamicSashRegion m_dragging;
 180     int m_drag_x, m_drag_y;
 181 };
 182
 183 class wxDynamicSashWindowLeaf : public wxEvtHandler {
 184 public:
 185     wxDynamicSashWindowLeaf(wxDynamicSashWindowImpl *impl);
 186     ~wxDynamicSashWindowLeaf();
 187
 188     bool Create();
 189     void AddChild(wxWindow *window);
 190     DynamicSashRegion GetRegion(int x, int y);
 191     void ResizeChild(wxSize size);
 192     wxScrollBar *FindScrollBar(const wxWindow *child, int vert) const;
 193
 194     void OnSize(wxSizeEvent &event);
 195     void OnPaint(wxPaintEvent &event);
 196     void OnScroll(wxScrollEvent &event);
 197     void OnFocus(wxFocusEvent &event);
 198     void OnMouseMove(wxMouseEvent &event);
 199     void OnLeave(wxMouseEvent &event);
 200     void OnPress(wxMouseEvent &event);
 201     void OnRelease(wxMouseEvent &event);
 202     void OnReparent(wxEvent &event);
 203
 204     wxDynamicSashWindowImpl *m_impl;
 205
 206     wxScrollBar *m_vscroll, *m_hscroll;
 207
 208     /*  m_child is the window provided to us by the application developer.
 209         m_viewport is a window we've created, and it is the immediately
 210         parent of m_child.  We scroll m_child by moving it around within
 211         m_viewport.  */
 212     wxWindow *m_viewport, *m_child;
 213 };
 214
 215 // wxDynamicSashWindow //////////////////////////////////////////////////////
 216
 217 wxDynamicSashWindow::wxDynamicSashWindow() {
 218     m_impl = NULL;
 219 }
 220
 221 wxDynamicSashWindow::wxDynamicSashWindow(wxWindow *parent, wxWindowID id,
 222                                          const wxPoint& pos, const wxSize& size,
 223                                          long style, const wxString& name) {
 224     m_impl = NULL;
 225     Create(parent, id, pos, size, style, name);
 226 }
 227
 228 wxDynamicSashWindow::~wxDynamicSashWindow() {
 229     SetEventHandler(this);
 230     delete m_impl;
 231 }
 232
 233 bool wxDynamicSashWindow::Create(wxWindow *parent, wxWindowID id,
 234                                  const wxPoint& pos, const wxSize& size,
 235                                  long style, const wxString& name) {
 236     if (m_impl)
 237         return false;
 238
 239     if (!wxWindow::Create(parent, id, pos, size, style, name))
 240         return false;
 241
 242     m_impl = new wxDynamicSashWindowImpl(this);
 243     if (!m_impl)
 244         return false;
 245
 246     if (!m_impl->Create()) {
 247         delete m_impl;
 248         m_impl = NULL;
 249         return false;
 250     }
 251
 252     return true;
 253 }
 254
 255 void wxDynamicSashWindow::AddChild(wxWindowBase *child) {
 256     wxWindow::AddChild(child);
 257
 258     m_impl->AddChild(wxDynamicCast(child, wxWindow));
 259 }
 260
 261 wxScrollBar *wxDynamicSashWindow::GetHScrollBar(const wxWindow *child) const {
 262     return m_impl->FindScrollBar(child, 0);
 263 }
 264
 265 wxScrollBar *wxDynamicSashWindow::GetVScrollBar(const wxWindow *child) const {
 266     return m_impl->FindScrollBar(child, 1);
 267 }
 268
 269 IMPLEMENT_DYNAMIC_CLASS(wxDynamicSashWindow, wxWindow)
 270
 271 // wxDynamicSashWindowImpl //////////////////////////////////////////////////
 272
 273 wxDynamicSashWindowImpl::wxDynamicSashWindowImpl(wxDynamicSashWindow *window) {
 274     m_window = window;
 275     m_add_child_target = this;
 276
 277     m_container = NULL;
 278     m_parent = NULL;
 279     m_top = this;
 280     m_child[0] = m_child[1] = NULL;
 281     m_leaf = NULL;
 282     m_dragging = DSR_NONE;
 283     m_split = DSR_NONE;
 284 }
 285
 286 wxDynamicSashWindowImpl::~wxDynamicSashWindowImpl() {
 287     delete m_leaf;
 288     delete m_child[0];
 289     m_child[0] = NULL;
 290     delete m_child[1];
 291     m_child[1] = NULL;
 292     m_leaf = NULL;
 293
 294     if (m_container != m_window && m_container) {
 295         m_container->SetEventHandler(m_container);
 296         m_container->Destroy();
 297     }
 298 }
 299
 300 bool wxDynamicSashWindowImpl::Create() {
 301     if (!m_container) {
 302         m_container = m_window;
 303     }
 304
 305     wxCursor cursor(wxCURSOR_ARROW);
 306     m_container->SetCursor(cursor);
 307
 308     m_leaf = new wxDynamicSashWindowLeaf(this);
 309     if (!m_leaf)
 310         return false;
 311
 312     if (!m_leaf->Create()) {
 313         delete m_leaf;
 314         m_leaf = NULL;
 315         return false;
 316     }
 317
 318     m_container->SetEventHandler(this);
 319
 320     Connect(wxID_ANY, wxEVT_SIZE, (wxObjectEventFunction)
 321                             (wxEventFunction)
 322                             (wxSizeEventFunction)&wxDynamicSashWindowImpl::OnSize);
 323     Connect(wxID_ANY, wxEVT_PAINT, (wxObjectEventFunction)
 324                              (wxEventFunction)
 325                              (wxPaintEventFunction)&wxDynamicSashWindowImpl::OnPaint);
 326     Connect(wxID_ANY, wxEVT_MOTION, (wxObjectEventFunction)
 327                               (wxEventFunction)
 328                               (wxMouseEventFunction)&wxDynamicSashWindowImpl::OnMouseMove);
 329     Connect(wxID_ANY, wxEVT_ENTER_WINDOW, (wxObjectEventFunction)
 330                                     (wxEventFunction)
 331                                     (wxMouseEventFunction)&wxDynamicSashWindowImpl::OnMouseMove);
 332     Connect(wxID_ANY, wxEVT_LEAVE_WINDOW, (wxObjectEventFunction)
 333                                     (wxEventFunction)
 334                                     (wxMouseEventFunction)&wxDynamicSashWindowImpl::OnLeave);
 335     Connect(wxID_ANY, wxEVT_LEFT_DOWN, (wxObjectEventFunction)
 336                                  (wxEventFunction)
 337                                  (wxMouseEventFunction)&wxDynamicSashWindowImpl::OnPress);
 338     Connect(wxID_ANY, wxEVT_LEFT_UP, (wxObjectEventFunction)
 339                                (wxEventFunction)
 340                                (wxMouseEventFunction)&wxDynamicSashWindowImpl::OnRelease);
 341
 342     return true;
 343 }
 344
 345 void wxDynamicSashWindowImpl::AddChild(wxWindow *window) {
 346     if (m_add_child_target && m_add_child_target->m_leaf) {
 347         m_add_child_target->m_leaf->AddChild(window);
 348     }
 349 }
 350
 351 void wxDynamicSashWindowImpl::DrawSash(int x, int y) const {
 352     int i, j;
 353
 354     wxScreenDC dc;
 355     dc.StartDrawingOnTop(m_container);
 356
 357     wxBitmap bmp(8, 8);
 358     wxMemoryDC bdc;
 359     bdc.SelectObject(bmp);
 360     bdc.DrawRectangle(-1, -1, 10, 10);
 361     for (i = 0; i < 8; i++) {
 362         for (j = 0; j < 8; j++) {
 363             if ((i + j) & 1) {
 364                 bdc.DrawPoint(i, j);
 365             }
 366         }
 367     }
 368
 369     wxBrush brush(bmp);
 370     dc.SetBrush(brush);
 371     dc.SetLogicalFunction(wxXOR);
 372
 373     if ((m_dragging == DSR_CORNER) &&
 374         (m_window->GetWindowStyle() & wxDS_DRAG_CORNER) != 0) {
 375         int cx = 0;
 376         int cy = 0;
 377
 378         m_container->ClientToScreen(&cx, &cy);
 379         m_container->ClientToScreen(&x, &y);
 380
 381         if (cx < x && cy < y) {
 382             dc.DrawRectangle(cx - 2, cy - 2, x - cx + 4, 4);
 383             dc.DrawRectangle(x - 2, cy + 2, 4, y - cy);
 384             dc.DrawRectangle(cx - 2, cy + 2, 4, y - cy);
 385             dc.DrawRectangle(cx + 2, y - 2, x - cx - 4, 4);
 386         }
 387     } else {
 388         int body_w, body_h;
 389         m_container->GetClientSize(&body_w, &body_h);
 390
 391         if (y < 0)
 392             y = 0;
 393         if (y > body_h)
 394             y = body_h;
 395         if (x < 0)
 396             x = 0;
 397         if (x > body_w)
 398             x = body_w;
 399
 400         if (m_dragging == DSR_HORIZONTAL_TAB)
 401             x = 0;
 402         else
 403             y = 0;
 404
 405         m_container->ClientToScreen(&x, &y);
 406
 407         int w, h;
 408         w = body_w;  h = body_h;
 409
 410         if (m_dragging == DSR_HORIZONTAL_TAB)
 411             dc.DrawRectangle(x, y - 2, w, 4);
 412         else
 413             dc.DrawRectangle(x - 2, y, 4, h);
 414     }
 415
 416     dc.EndDrawingOnTop();
 417 }
 418
 419 wxDynamicSashWindowImpl *wxDynamicSashWindowImpl::FindParent(DynamicSashRegion side) const {
 420     if (m_parent == NULL) {
 421         return NULL;
 422     }
 423
 424     if (m_parent->m_split == DSR_HORIZONTAL_TAB) {
 425         if (side == DSR_TOP_EDGE && m_parent->m_child[1] == this)
 426             return m_parent;
 427         if (side == DSR_BOTTOM_EDGE && m_parent->m_child[0] == this)
 428             return m_parent;
 429     } else if (m_parent->m_split == DSR_VERTICAL_TAB) {
 430         if (side == DSR_LEFT_EDGE && m_parent->m_child[1] == this)
 431             return m_parent;
 432         if (side == DSR_RIGHT_EDGE && m_parent->m_child[0] == this)
 433             return m_parent;
 434     }
 435
 436     return m_parent->FindParent(side);
 437 }
 438
 439 wxDynamicSashWindowImpl *wxDynamicSashWindowImpl::FindUpperParent(wxDynamicSashWindowImpl *sash_a,
 440                                                                   wxDynamicSashWindowImpl *sash_b) const {
 441     wxWindow *win;
 442     win = sash_a->m_container->GetParent();
 443     while (win && !win->IsTopLevel()) {
 444         if (win == sash_b->m_container) {
 445             return sash_b;
 446         }
 447
 448         win = win->GetParent();
 449     }
 450
 451     return sash_a;
 452 }
 453
 454
 455 wxWindow *wxDynamicSashWindowImpl::FindFrame() const {
 456     wxWindow *win;
 457
 458     win = m_window->GetParent();
 459     while (win && !win->IsTopLevel()
 460 #ifdef __WXMSW__
 461            && ! wxIsKindOf(win, wxMDIChildFrame)  // not top-level but still a frame
 462 #endif
 463         ) {
 464         win = win->GetParent();
 465     }
 466
 467     return win;
 468 }
 469
 470 wxScrollBar *wxDynamicSashWindowImpl::FindScrollBar(const wxWindow *child, int vert) const {
 471     if (m_child[0] == NULL && m_leaf == NULL) {
 472         return NULL;
 473     }
 474
 475     if (!m_child[0]) {
 476         return m_leaf->FindScrollBar(child, vert);
 477     } else {
 478         wxScrollBar *ret = m_child[0]->FindScrollBar(child, vert);
 479         if (!ret) {
 480             ret = m_child[1]->FindScrollBar(child, vert);
 481         }
 482
 483         return ret;
 484     }
 485 }
 486
 487 void wxDynamicSashWindowImpl::ConstrainChildren(int px, int py) {
 488     wxLayoutConstraints *layout = new wxLayoutConstraints();
 489     layout->left.SameAs(m_container, wxLeft);
 490     layout->top.SameAs(m_container, wxTop);
 491     if (m_split == DSR_HORIZONTAL_TAB) {
 492         layout->right.SameAs(m_container, wxRight);
 493         layout->height.PercentOf(m_container, wxHeight, py);
 494     } else {
 495         layout->bottom.SameAs(m_container, wxBottom);
 496         layout->width.PercentOf(m_container, wxWidth, px);
 497     }
 498     m_child[0]->m_container->SetConstraints(layout);
 499
 500     layout = new wxLayoutConstraints();
 501     layout->right.SameAs(m_container, wxRight);
 502     layout->bottom.SameAs(m_container, wxBottom);
 503     if (m_split == DSR_HORIZONTAL_TAB) {
 504         layout->top.Below(m_child[0]->m_container, 1);
 505         layout->left.SameAs(m_container, wxLeft);
 506     } else {
 507         layout->left.RightOf(m_child[0]->m_container, 1);
 508         layout->top.SameAs(m_container, wxTop);
 509     }
 510     m_child[1]->m_container->SetConstraints(layout);
 511 }
 512
 513 void wxDynamicSashWindowImpl::Unify(int panel) {
 514     int other = 0;
 515     if (panel == 0) {
 516         other = 1;
 517     }
 518
 519     if (m_child[panel]->m_leaf) {
 520         wxDynamicSashWindowImpl *child[2];
 521
 522         child[0] = m_child[0];
 523         child[1] = m_child[1];
 524
 525         m_child[0] = m_child[1] = NULL;
 526
 527         m_leaf = new wxDynamicSashWindowLeaf(this);
 528         m_leaf->Create();
 529         m_leaf->m_child = child[panel]->m_leaf->m_child;
 530
 531         m_leaf->m_vscroll->SetScrollbar(child[panel]->m_leaf->m_vscroll->GetThumbPosition(),
 532                                         child[panel]->m_leaf->m_vscroll->GetThumbSize(),
 533                                         child[panel]->m_leaf->m_vscroll->GetRange(),
 534                                         child[panel]->m_leaf->m_vscroll->GetPageSize());
 535         m_leaf->m_hscroll->SetScrollbar(child[panel]->m_leaf->m_hscroll->GetThumbPosition(),
 536                                         child[panel]->m_leaf->m_hscroll->GetThumbSize(),
 537                                         child[panel]->m_leaf->m_hscroll->GetRange(),
 538                                         child[panel]->m_leaf->m_hscroll->GetPageSize());
 539         m_add_child_target = NULL;
 540         wxDynamicSashReparentEvent event(m_leaf);
 541         m_leaf->ProcessEvent(event);
 542
 543         delete child[0];
 544         delete child[1];
 545
 546         m_split = DSR_NONE;
 547
 548         wxDynamicSashUnifyEvent unify(m_leaf->m_child);
 549         m_leaf->m_child->ProcessEvent(unify);
 550     } else {
 551         m_split = m_child[panel]->m_split;
 552
 553         delete m_child[other];
 554
 555         wxDynamicSashWindowImpl *child_panel = m_child[panel];
 556         m_child[0] = child_panel->m_child[0];
 557         m_child[1] = child_panel->m_child[1];
 558
 559         m_child[0]->m_parent = this;
 560         m_child[1]->m_parent = this;
 561
 562         m_add_child_target = NULL;
 563         m_child[0]->m_container->Reparent(m_container);
 564         m_child[1]->m_container->Reparent(m_container);
 565
 566         child_panel->m_child[0] = child_panel->m_child[1] = NULL;
 567         delete child_panel;
 568
 569         wxSize size = m_container->GetSize();
 570         wxSize child_size = m_child[0]->m_container->GetSize();
 571
 572         ConstrainChildren(child_size.GetWidth() * 100 / size.GetWidth(),
 573                             child_size.GetHeight() * 100 / size.GetHeight());
 574
 575         m_container->Layout();
 576     }
 577 }
 578
 579 void wxDynamicSashWindowImpl::Split(int px, int py) {
 580
 581     m_add_child_target = NULL;
 582
 583     m_child[0] = new wxDynamicSashWindowImpl(m_window);
 584     m_child[0]->m_container = new wxWindow(m_container, wxID_ANY);
 585     m_child[0]->m_parent = this;
 586     m_child[0]->m_top = m_top;
 587     m_child[0]->Create();
 588     if (m_leaf->m_child) {
 589         m_leaf->m_child->Reparent(m_container);
 590         m_child[0]->AddChild(m_leaf->m_child);
 591     }
 592
 593     m_child[1] = new wxDynamicSashWindowImpl(m_window);
 594     m_child[1]->m_container = new wxWindow(m_container, wxID_ANY);
 595     m_child[1]->m_parent = this;
 596     m_child[1]->m_top = m_top;
 597     m_child[1]->Create();
 598
 599     m_split = m_dragging;
 600     ConstrainChildren(px, py);
 601
 602     m_top->m_add_child_target = m_child[1];
 603     wxDynamicSashSplitEvent split(m_child[0]->m_leaf->m_child);
 604     m_child[0]->m_leaf->m_child->ProcessEvent(split);
 605
 606     m_child[0]->m_leaf->m_vscroll->SetScrollbar(m_leaf->m_vscroll->GetThumbPosition(),
 607                                                 m_leaf->m_vscroll->GetThumbSize(),
 608                                                 m_leaf->m_vscroll->GetRange(),
 609                                                 m_leaf->m_vscroll->GetPageSize());
 610     m_child[0]->m_leaf->m_hscroll->SetScrollbar(m_leaf->m_hscroll->GetThumbPosition(),
 611                                                 m_leaf->m_hscroll->GetThumbSize(),
 612                                                 m_leaf->m_hscroll->GetRange(),
 613                                                 m_leaf->m_hscroll->GetPageSize());
 614     m_child[1]->m_leaf->m_vscroll->SetScrollbar(m_leaf->m_vscroll->GetThumbPosition(),
 615                                                 m_leaf->m_vscroll->GetThumbSize(),
 616                                                 m_leaf->m_vscroll->GetRange(),
 617                                                 m_leaf->m_vscroll->GetPageSize());
 618     m_child[1]->m_leaf->m_hscroll->SetScrollbar(m_leaf->m_hscroll->GetThumbPosition(),
 619                                                 m_leaf->m_hscroll->GetThumbSize(),
 620                                                 m_leaf->m_hscroll->GetRange(),
 621                                                 m_leaf->m_hscroll->GetPageSize());
 622     delete m_leaf;
 623     m_leaf = NULL;
 624
 625     m_container->Layout();
 626 }
 627
 628
 629 /*  This code is called when you finish resizing a view by dragging the
 630     corner tab, but I think this implementation is lousy and will surprise
 631     the user more often than it will do what they are trying to do.  What
 632     I really need to be doing here is do a rewrite such that *no* sashes
 633     move except the ones immediately to the bottom and right of this window,
 634     and handle the case where you resize a window larger than it's neighbors
 635     by destroying the neighbors.
 636
 637     But this will do for now.  */
 638 void wxDynamicSashWindowImpl::Resize(int x, int y) {
 639     wxDynamicSashWindowImpl *h_parent = FindParent(DSR_BOTTOM_EDGE);
 640     wxDynamicSashWindowImpl *v_parent = FindParent(DSR_RIGHT_EDGE);
 641     int h_unify = -1;
 642     int v_unify = -1;
 643     wxWindow *frame = FindFrame();
 644
 645     if (x < 0) {
 646         x = 0;
 647     }
 648     if (y < 0) {
 649         y = 0;
 650     }
 651
 652     if (h_parent) {
 653         m_container->ClientToScreen(NULL, &y);
 654         h_parent->m_container->ScreenToClient(NULL, &y);
 655
 656         int py = (int)((y * 100) / h_parent->m_container->GetSize().GetHeight() + 0.5);
 657
 658         if (py < 10) {
 659             wxDynamicSashWindowImpl *ho_parent = FindParent(DSR_TOP_EDGE);
 660
 661             if (ho_parent) {
 662                 if (FindUpperParent(h_parent, ho_parent) == ho_parent) {
 663                     h_unify = 1;
 664                 } else {
 665                     py = (int)((ho_parent->m_child[0]->m_container->GetSize().GetHeight() * 100)
 666                                 / h_parent->m_container->GetSize().GetHeight() + 0.5);
 667                     h_parent->m_child[0]->m_container->GetConstraints()->height.PercentOf(
 668                             h_parent->m_container, wxHeight, py);
 669
 670                     h_parent = ho_parent;
 671                     h_unify = 0;
 672                 }
 673             } else {
 674                 h_unify = 1;
 675             }
 676         } else if (py > 90) {
 677             h_unify = 0;
 678         } else {
 679             h_parent->m_child[0]->m_container->GetConstraints()->height.PercentOf(
 680                     h_parent->m_container, wxHeight, py);
 681             h_parent->m_container->Layout();
 682         }
 683     } else {
 684         int do_resize = 1;
 685         h_parent = FindParent(DSR_TOP_EDGE);
 686
 687         if (h_parent) {
 688             int py = (int)((y * 100) /
 689                         (h_parent->m_container->GetSize().GetHeight() +
 690                                 y - m_container->GetSize().GetHeight()) + 0.5);
 691
 692             if (py < 10) {
 693                 h_unify = 0;
 694             }
 695         } else if (y < 64) {
 696             do_resize = 0;
 697         }
 698
 699         if (do_resize) {
 700             wxSize size = frame->GetSize();
 701             frame->SetSize(size.GetWidth(), size.GetHeight() + y - m_container->GetSize().GetHeight());
 702         }
 703     }
 704
 705     if (v_parent) {
 706         m_container->ClientToScreen(&x, NULL);
 707         v_parent->m_container->ScreenToClient(&x, NULL);
 708
 709         int px = (int)((x * 100) / v_parent->m_container->GetSize().GetWidth() + 0.5);
 710
 711         if (px < 10) {
 712             wxDynamicSashWindowImpl *vo_parent = FindParent(DSR_LEFT_EDGE);
 713
 714             if (vo_parent) {
 715                 if (FindUpperParent(v_parent, vo_parent) == vo_parent) {
 716                     v_unify = 1;
 717                 } else {
 718                     px = (int)((vo_parent->m_child[0]->m_container->GetSize().GetWidth() * 100)
 719                                 / v_parent->m_container->GetSize().GetWidth() + 0.5);
 720                     v_parent->m_child[0]->m_container->GetConstraints()->width.PercentOf(
 721                             v_parent->m_container, wxWidth, px);
 722
 723                     v_parent = vo_parent;
 724                     v_unify = 0;
 725                 }
 726             } else {
 727                 v_unify = 1;
 728             }
 729         } else if (px > 90) {
 730             v_unify = 0;
 731         } else {
 732             v_parent->m_child[0]->m_container->GetConstraints()->width.PercentOf(
 733                     v_parent->m_container, wxWidth, px);
 734             v_parent->m_container->Layout();
 735         }
 736     } else {
 737         int do_resize = 1;
 738         v_parent = FindParent(DSR_LEFT_EDGE);
 739
 740         if (v_parent) {
 741             int px = (int)((x * 100) /
 742                         (v_parent->m_container->GetSize().GetWidth() +
 743                                 x - m_container->GetSize().GetWidth()) + 0.5);
 744
 745             if (px < 10) {
 746                 v_unify = 0;
 747             }
 748         } else if (x < 64) {
 749             do_resize = 0;
 750         }
 751
 752         if (do_resize) {
 753             wxSize size = frame->GetSize();
 754             frame->SetSize(size.GetWidth() + x - m_container->GetSize().GetWidth(), size.GetHeight());
 755         }
 756     }
 757
 758     if (h_unify != -1 && v_unify != -1) {
 759         wxDynamicSashWindowImpl *parent = FindUpperParent(h_parent, v_parent);
 760
 761         if (parent == h_parent) {
 762             h_parent->Unify(h_unify);
 763         } else {
 764             v_parent->Unify(v_unify);
 765         }
 766     } else if (h_unify != -1) {
 767         h_parent->Unify(h_unify);
 768     } else if (v_unify != -1) {
 769         v_parent->Unify(v_unify);
 770     }
 771 }
 772
 773
 774 void wxDynamicSashWindowImpl::OnSize(wxSizeEvent &event) {
 775     m_container->Layout();
 776
 777     if (m_leaf)
 778         m_leaf->OnSize(event);
 779 }
 780
 781 void wxDynamicSashWindowImpl::OnPaint(wxPaintEvent &event) {
 782     if (m_leaf)
 783         m_leaf->OnPaint(event);
 784     else {
 785         wxPaintDC dc(m_container);
 786         dc.SetBackground(wxBrush(m_container->GetBackgroundColour(), wxSOLID));
 787         dc.Clear();
 788     }
 789 }
 790
 791 void wxDynamicSashWindowImpl::OnMouseMove(wxMouseEvent &event) {
 792     if (m_dragging) {
 793         DrawSash(m_drag_x, m_drag_y);
 794         m_drag_x = event.m_x;  m_drag_y = event.m_y;
 795         DrawSash(m_drag_x, m_drag_y);
 796     } else if (m_leaf) {
 797         m_leaf->OnMouseMove(event);
 798     }
 799 }
 800
 801 void wxDynamicSashWindowImpl::OnLeave(wxMouseEvent &event) {
 802     if (m_leaf) {
 803         m_leaf->OnLeave(event);
 804     }
 805 }
 806
 807 void wxDynamicSashWindowImpl::OnPress(wxMouseEvent &event) {
 808     if (m_leaf) {
 809         m_leaf->OnPress(event);
 810     } else {
 811         m_dragging = m_split;
 812         m_drag_x = event.m_x;
 813         m_drag_y = event.m_y;
 814         DrawSash(m_drag_x, m_drag_y);
 815         m_container->CaptureMouse();
 816     }
 817 }
 818
 819 void wxDynamicSashWindowImpl::OnRelease(wxMouseEvent &event) {
 820     if ((m_dragging == DSR_CORNER) &&
 821         (m_window->GetWindowStyle() & wxDS_DRAG_CORNER) != 0) {
 822         DrawSash(m_drag_x, m_drag_y);
 823         m_container->ReleaseMouse();
 824
 825         Resize(event.m_x, event.m_y);
 826
 827         m_dragging = DSR_NONE;
 828     } else if (m_dragging) {
 829         DrawSash(m_drag_x, m_drag_y);
 830         m_container->ReleaseMouse();
 831
 832         wxSize size = m_container->GetSize();
 833         int px = (int)((event.m_x * 100) / size.GetWidth() + 0.5);
 834         int py = (int)((event.m_y * 100) / size.GetHeight() + 0.5);
 835
 836         if ((m_dragging == DSR_HORIZONTAL_TAB && py >= 10 && py <= 90)
 837                     || (m_dragging == DSR_VERTICAL_TAB && px >= 10 && px <= 90)) {
 838             if (m_child[0] == NULL) {
 839                 Split(px, py);
 840             } else {
 841                 /*  It would be nice if moving *this* sash didn't implicitly move
 842                     the sashes of our children (if any).  But this will do.  */
 843                 wxLayoutConstraints *layout = m_child[0]->m_container->GetConstraints();
 844                 if (m_split == DSR_HORIZONTAL_TAB) {
 845                     layout->height.PercentOf(m_container, wxHeight, py);
 846                 } else {
 847                     layout->width.PercentOf(m_container, wxWidth, px);
 848                 }
 849                 m_container->Layout();
 850             }
 851         } else {
 852             if (m_child[0] != NULL) {
 853                 if ((m_dragging == DSR_HORIZONTAL_TAB && py <= 10)
 854                         || (m_dragging == DSR_VERTICAL_TAB && px <= 10)) {
 855                     Unify(1);
 856                 } else {
 857                     Unify(0);
 858                 }
 859             }
 860         }
 861
 862         wxCursor cursor(wxCURSOR_ARROW);
 863         if (m_split == DSR_HORIZONTAL_TAB) {
 864             cursor = wxCursor(wxCURSOR_SIZENS);
 865         } else if (m_split == DSR_VERTICAL_TAB) {
 866             cursor = wxCursor(wxCURSOR_SIZEWE);
 867         }
 868         m_container->SetCursor(cursor);
 869
 870         m_dragging = DSR_NONE;
 871     } else if (m_leaf) {
 872         m_leaf->OnRelease(event);
 873     }
 874 }
 875
 876 // wxDynamicSashWindowLeaf //////////////////////////////////////////////////
 877
 878 wxDynamicSashWindowLeaf::wxDynamicSashWindowLeaf(wxDynamicSashWindowImpl *impl) {
 879     m_impl = impl;
 880
 881     m_hscroll = m_vscroll = NULL;
 882     m_child = NULL;
 883 }
 884
 885 wxDynamicSashWindowLeaf::~wxDynamicSashWindowLeaf() {
 886     m_hscroll->SetEventHandler(m_hscroll);
 887     m_vscroll->SetEventHandler(m_vscroll);
 888     m_viewport->SetEventHandler(m_viewport);
 889
 890     m_hscroll->Destroy();
 891     m_vscroll->Destroy();
 892     m_viewport->Destroy();
 893 }
 894
 895 bool wxDynamicSashWindowLeaf::Create() {
 896     bool success;
 897
 898     m_hscroll = new wxScrollBar();
 899     m_vscroll = new wxScrollBar();
 900     m_viewport = new wxWindow();
 901
 902     if (!m_hscroll || !m_vscroll || !m_viewport) {
 903         return false;
 904     }
 905
 906     wxDynamicSashWindowImpl *add_child_target = m_impl->m_add_child_target;
 907     m_impl->m_add_child_target = NULL;
 908     success = m_hscroll->Create(m_impl->m_container, wxID_ANY, wxDefaultPosition, wxDefaultSize,
 909                                 wxSB_HORIZONTAL);
 910     success = success && m_vscroll->Create(m_impl->m_container, wxID_ANY, wxDefaultPosition, wxDefaultSize,
 911                                             wxSB_VERTICAL);
 912     success = success && m_viewport->Create(m_impl->m_container, wxID_ANY);
 913     m_impl->m_add_child_target = add_child_target;
 914
 915     wxCursor cursor(wxCURSOR_ARROW);
 916     m_hscroll->SetCursor(cursor);
 917     m_vscroll->SetCursor(cursor);
 918     m_viewport->SetCursor(cursor);
 919
 920     m_viewport->SetEventHandler(this);
 921     Connect(wxID_ANY, wxEVT_DYNAMIC_SASH_REPARENT, (wxObjectEventFunction)&wxDynamicSashWindowLeaf::OnReparent);
 922
 923     if (m_impl->m_window->GetWindowStyle() & wxDS_MANAGE_SCROLLBARS) {
 924         m_hscroll->SetEventHandler(this);
 925         m_vscroll->SetEventHandler(this);
 926
 927         Connect(wxID_ANY, wxEVT_SET_FOCUS, (wxObjectEventFunction)
 928                                      (wxEventFunction)
 929                                      (wxFocusEventFunction)&wxDynamicSashWindowLeaf::OnFocus);
 930         Connect(wxID_ANY, wxEVT_SCROLL_TOP, (wxObjectEventFunction)
 931                                       (wxEventFunction)
 932                                       (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 933         Connect(wxID_ANY, wxEVT_SCROLL_BOTTOM, (wxObjectEventFunction)
 934                                          (wxEventFunction)
 935                                          (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 936         Connect(wxID_ANY, wxEVT_SCROLL_LINEUP, (wxObjectEventFunction)
 937                                          (wxEventFunction)
 938                                          (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 939         Connect(wxID_ANY, wxEVT_SCROLL_LINEDOWN, (wxObjectEventFunction)
 940                                            (wxEventFunction)
 941                                            (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 942         Connect(wxID_ANY, wxEVT_SCROLL_PAGEUP, (wxObjectEventFunction)
 943                                          (wxEventFunction)
 944                                          (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 945         Connect(wxID_ANY, wxEVT_SCROLL_PAGEDOWN, (wxObjectEventFunction)
 946                                            (wxEventFunction)
 947                                            (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 948         Connect(wxID_ANY, wxEVT_SCROLL_THUMBTRACK, (wxObjectEventFunction)
 949                                              (wxEventFunction)
 950                                              (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 951         Connect(wxID_ANY, wxEVT_SCROLL_THUMBRELEASE, (wxObjectEventFunction)
 952                                                (wxEventFunction)
 953                                                (wxScrollEventFunction)&wxDynamicSashWindowLeaf::OnScroll);
 954     }
 955
 956     wxLayoutConstraints *layout = new wxLayoutConstraints();
 957     if (!layout)
 958         return false;
 959     wxSize size = m_hscroll->GetBestSize();
 960 #ifdef __WXMSW__
 961     size = m_hscroll->GetSize();
 962 #endif
 963
 964     layout->left.SameAs(m_impl->m_container, wxLeft, 10);
 965     layout->right.LeftOf(m_vscroll);
 966     layout->bottom.SameAs(m_impl->m_container, wxBottom, 3);
 967     layout->height.Absolute(size.GetHeight());
 968     m_hscroll->SetConstraints(layout);
 969
 970     layout = new wxLayoutConstraints();
 971     if (!layout)
 972         return false;
 973     size = size = m_vscroll->GetBestSize();
 974 #ifdef __WXMSW__
 975     size = m_vscroll->GetSize();
 976 #endif
 977
 978     layout->top.SameAs(m_impl->m_container, wxTop, 10);
 979     layout->bottom.Above(m_hscroll);
 980     layout->right.SameAs(m_impl->m_container, wxRight, 3);
 981     layout->width.Absolute(size.GetWidth());
 982     m_vscroll->SetConstraints(layout);
 983
 984     layout = new wxLayoutConstraints();
 985     if (!layout)
 986         return false;
 987     layout->left.SameAs(m_impl->m_container, wxLeft, 3);
 988     layout->right.LeftOf(m_vscroll);
 989     layout->top.SameAs(m_impl->m_container, wxTop, 3);
 990     layout->bottom.Above(m_hscroll);
 991     m_viewport->SetConstraints(layout);
 992
 993     m_impl->m_container->Layout();
 994
 995     return success;
 996 }
 997
 998 void wxDynamicSashWindowLeaf::AddChild(wxWindow *window) {
 999     if (m_child) {
1000         m_child->Destroy();
1001     }
1002
1003     m_child = window;
1004
1005     wxDynamicSashReparentEvent event(this);
1006     AddPendingEvent(event);
1007 }
1008
1009 DynamicSashRegion wxDynamicSashWindowLeaf::GetRegion(int x, int y) {
1010     wxSize size = m_impl->m_container->GetSize();
1011     int w = size.GetWidth();
1012     int h = size.GetHeight();
1013     size = m_hscroll->GetSize();
1014     int sh = size.GetHeight();
1015     size = m_vscroll->GetSize();
1016     int sw = size.GetWidth();
1017
1018     if (x >= w - sw - 3 && x < w && y >= h - sh - 3 && y < h)
1019         return DSR_CORNER;
1020     if (x >= 3 && x < 10 && y >= h - sh - 3 && y < h - 2)
1021         return DSR_VERTICAL_TAB;
1022     if (x >= w - sw - 3 && x < w - 2 && y >= 3 && y < 10)
1023         return DSR_HORIZONTAL_TAB;
1024     if (x < 3)
1025         return DSR_LEFT_EDGE;
1026     if (y < 3)
1027         return DSR_TOP_EDGE;
1028     if (x >= w - 2)
1029         return DSR_RIGHT_EDGE;
1030     if (y >= h - 2)
1031         return DSR_BOTTOM_EDGE;
1032
1033     return DSR_NONE;
1034 }
1035
1036 void wxDynamicSashWindowLeaf::ResizeChild(wxSize size) {
1037     if (m_child) {
1038         if (m_impl->m_window->GetWindowStyle() & wxDS_MANAGE_SCROLLBARS) {
1039             m_child->SetSize(size);
1040             wxSize best_size = m_child->GetBestSize();
1041             if (best_size.GetWidth() < size.GetWidth()) {
1042                 best_size.SetWidth(size.GetWidth());
1043             }
1044             if (best_size.GetHeight() < size.GetHeight()) {
1045                 best_size.SetHeight(size.GetHeight());
1046             }
1047             m_child->SetSize(best_size);
1048
1049             int hpos = m_hscroll->GetThumbPosition();
1050             int vpos = m_vscroll->GetThumbPosition();
1051
1052             if (hpos < 0) {
1053                 hpos = 0;
1054             }
1055             if (vpos < 0) {
1056                 vpos = 0;
1057             }
1058             if (hpos > best_size.GetWidth() - size.GetWidth()) {
1059                 hpos = best_size.GetWidth() - size.GetWidth();
1060             }
1061             if (vpos > best_size.GetHeight() - size.GetHeight()) {
1062                 vpos = best_size.GetHeight() - size.GetHeight();
1063             }
1064
1065             m_hscroll->SetScrollbar(hpos, size.GetWidth(),
1066                                     best_size.GetWidth(), size.GetWidth());
1067             m_vscroll->SetScrollbar(vpos, size.GetHeight(),
1068                                     best_size.GetHeight(), size.GetHeight());
1069
1070             //  Umm, the scrollbars are doing something insane under GTK+ and subtracting
1071             //  one from the position I pass in.  This works around that.
1072             m_hscroll->SetThumbPosition(hpos + hpos - m_hscroll->GetThumbPosition());
1073             m_vscroll->SetThumbPosition(vpos + vpos - m_vscroll->GetThumbPosition());
1074
1075             wxPoint pos = m_child->GetPosition();
1076             m_viewport->ScrollWindow(-hpos - pos.x, -vpos - pos.y);
1077         } else {
1078             m_child->SetSize(size);
1079         }
1080     }
1081 }
1082
1083 wxScrollBar *wxDynamicSashWindowLeaf::FindScrollBar(const wxWindow *child, int vert) const {
1084     if (m_child == child) {
1085         if (vert) {
1086             return m_vscroll;
1087         } else {
1088             return m_hscroll;
1089         }
1090     }
1091
1092     return NULL;
1093 }
1094
1095 void wxDynamicSashWindowLeaf::OnSize(wxSizeEvent &WXUNUSED(event)) {
1096     m_impl->m_container->Refresh();
1097     ResizeChild(m_viewport->GetSize());
1098 }
1099
1100 void wxDynamicSashWindowLeaf::OnPaint(wxPaintEvent &WXUNUSED(event)) {
1101     wxPaintDC dc(m_impl->m_container);
1102     dc.SetBackground(wxBrush(m_impl->m_container->GetBackgroundColour(), wxSOLID));
1103     dc.Clear();
1104
1105     wxPen highlight(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNHIGHLIGHT), 1, wxSOLID);
1106     wxPen shadow(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNSHADOW), 1, wxSOLID);
1107     wxPen black(*wxBLACK, 1, wxSOLID);
1108
1109     wxSize size = m_impl->m_container->GetSize();
1110     int w = size.GetWidth();
1111     int h = size.GetHeight();
1112     size = m_hscroll->GetSize();
1113     int sh = size.GetHeight();
1114     size = m_vscroll->GetSize();
1115     int sw = size.GetWidth();
1116
1117     dc.SetPen(shadow);
1118     dc.DrawLine(1, 1, 1, h - 2);
1119     dc.DrawLine(1, 1, w - 2, 1);
1120     dc.SetPen(black);
1121     dc.DrawLine(2, 2, 2, h - 3);
1122     dc.DrawLine(2, 2, w - 3, 2);
1123     dc.SetPen(highlight);
1124     dc.DrawLine(w - 2, 2, w - 2, h - sh - 2);
1125     dc.DrawLine(w - 2, h - sh - 2, w - sw - 2, h - sh - 2);
1126     dc.DrawLine(w - sw - 2, h - sh - 2, w - sw - 2, h - 2);
1127     dc.DrawLine(w - sw - 2, h - 2, 2, h - 2);
1128
1129     dc.SetPen(highlight);
1130     dc.DrawLine(w - sw - 2, 8, w - sw - 2, 4);
1131     dc.DrawLine(w - sw - 2, 4, w - 5, 4);
1132     dc.SetPen(shadow);
1133     dc.DrawLine(w - 5, 4, w - 5, 8);
1134     dc.DrawLine(w - 5, 8, w - sw - 2, 8);
1135     dc.SetPen(black);
1136     dc.DrawLine(w - 4, 3, w - 4, 9);
1137     dc.DrawLine(w - 4, 9, w - sw - 3, 9);
1138
1139     dc.SetPen(highlight);
1140     dc.DrawLine(4, h - 5, 4, h - sh - 2);
1141     dc.DrawLine(4, h - sh - 2, 8, h - sh - 2);
1142     dc.SetPen(shadow);
1143     dc.DrawLine(8, h - sh - 2, 8, h - 5);
1144     dc.DrawLine(8, h - 5, 4, h - 5);
1145     dc.SetPen(black);
1146     dc.DrawLine(9, h - sh - 3, 9, h - 4);
1147     dc.DrawLine(9, h - 4, 3, h - 4);
1148
1149     int cy = (h - sh + h - 6) / 2 + 1;
1150     int cx = (w - sw + w - 6) / 2 + 1;
1151     int sy = cy;
1152     while (sy > h - sh)
1153         sy -= 4;
1154     int sx = cx;
1155     while (sx > w - sw)
1156         sx -= 4;
1157
1158     int x, y;
1159     for (y = sy; y < h - 2; y += 4) {
1160         for (x = sx; x < w - 2; x += 4) {
1161             if (x - cx >= -(y - cy)) {
1162                 dc.SetPen(highlight);
1163                 dc.DrawPoint(x, y);
1164                 dc.SetPen(shadow);
1165                 dc.DrawPoint(x + 1, y + 1);
1166             }
1167         }
1168     }
1169 }
1170
1171 void wxDynamicSashWindowLeaf::OnScroll(wxScrollEvent &WXUNUSED(event)) {
1172     int nx = -m_hscroll->GetThumbPosition();
1173     int ny = -m_vscroll->GetThumbPosition();
1174
1175     if (m_child) {
1176         wxPoint pos = m_child->GetPosition();
1177
1178         m_viewport->ScrollWindow(nx - pos.x, ny - pos.y);
1179     }
1180 }
1181
1182 void wxDynamicSashWindowLeaf::OnFocus(wxFocusEvent &event) {
1183     if (event.GetEventObject() == m_hscroll || event.GetEventObject() == m_vscroll) {
1184         m_child->SetFocus();
1185     }
1186 }
1187
1188
1189 void wxDynamicSashWindowLeaf::OnMouseMove(wxMouseEvent &event) {
1190     if (m_impl->m_dragging) {
1191         return;
1192     }
1193
1194     DynamicSashRegion region = GetRegion(event.m_x, event.m_y);
1195
1196     wxCursor cursor(wxCURSOR_ARROW);
1197     if (region == DSR_HORIZONTAL_TAB) {
1198         cursor = wxCursor(wxCURSOR_SIZENS);
1199     } else if (region == DSR_VERTICAL_TAB) {
1200         cursor = wxCursor(wxCURSOR_SIZEWE);
1201     } else if ((region == DSR_CORNER) &&
1202                (m_impl->m_window->GetWindowStyle() & wxDS_DRAG_CORNER) != 0) {
1203         cursor = wxCursor(wxCURSOR_SIZENWSE);
1204     } else if (region == DSR_LEFT_EDGE || region == DSR_TOP_EDGE
1205                 || region == DSR_RIGHT_EDGE || region == DSR_BOTTOM_EDGE) {
1206         if (m_impl->FindParent(region)) {
1207             if (region == DSR_LEFT_EDGE || region == DSR_RIGHT_EDGE) {
1208                 cursor = wxCursor(wxCURSOR_SIZEWE);
1209             } else {
1210                 cursor = wxCursor(wxCURSOR_SIZENS);
1211             }
1212         }
1213     }
1214
1215     m_impl->m_container->SetCursor(cursor);
1216 }
1217
1218 void wxDynamicSashWindowLeaf::OnLeave(wxMouseEvent &WXUNUSED(event)) {
1219     wxCursor cursor(wxCURSOR_ARROW);
1220     m_impl->m_container->SetCursor(cursor);
1221 }
1222
1223
1224 void wxDynamicSashWindowLeaf::OnPress(wxMouseEvent &event) {
1225     DynamicSashRegion region = GetRegion(event.m_x, event.m_y);
1226
1227     if ((region == DSR_CORNER) && (m_impl->m_window->GetWindowStyle() & wxDS_DRAG_CORNER) == 0)
1228         return;
1229
1230     if (region == DSR_HORIZONTAL_TAB || region == DSR_VERTICAL_TAB || region == DSR_CORNER) {
1231         m_impl->m_dragging = region;
1232         m_impl->m_drag_x = event.m_x;
1233         m_impl->m_drag_y = event.m_y;
1234         m_impl->DrawSash(event.m_x, event.m_y);
1235         m_impl->m_container->CaptureMouse();
1236     } else if (region == DSR_LEFT_EDGE || region == DSR_TOP_EDGE
1237                 || region == DSR_RIGHT_EDGE || region == DSR_BOTTOM_EDGE) {
1238         wxDynamicSashWindowImpl *parent = m_impl->FindParent(region);
1239
1240         if (parent) {
1241             int x = event.m_x;
1242             int y = event.m_y;
1243
1244             m_impl->m_container->ClientToScreen(&x, &y);
1245             parent->m_container->ScreenToClient(&x, &y);
1246
1247             parent->m_dragging = parent->m_split;
1248             parent->m_drag_x = x;
1249             parent->m_drag_y = y;
1250             parent->DrawSash(x, y);
1251             parent->m_container->CaptureMouse();
1252         }
1253     }
1254 }
1255
1256 void wxDynamicSashWindowLeaf::OnRelease(wxMouseEvent &WXUNUSED(event)) {
1257 }
1258
1259 void wxDynamicSashWindowLeaf::OnReparent(wxEvent &WXUNUSED(event)) {
1260     if (m_child) {
1261         m_child->Reparent(m_viewport);
1262     }
1263
1264     ResizeChild(m_viewport->GetSize());
1265 }
1266
1267 // wxDynamicSashSplitEvent //////////////////////////////////////////////////
1268
1269 wxDynamicSashSplitEvent::wxDynamicSashSplitEvent() {
1270     m_eventObject = NULL;
1271     m_eventType = wxEVT_DYNAMIC_SASH_SPLIT;
1272 }
1273
1274 wxDynamicSashSplitEvent::wxDynamicSashSplitEvent(wxObject *object) {
1275     m_eventObject = object;
1276     m_eventType = wxEVT_DYNAMIC_SASH_SPLIT;
1277 }
1278
1279 IMPLEMENT_DYNAMIC_CLASS(wxDynamicSashSplitEvent, wxCommandEvent)
1280
1281 // wxDynamicSashUnifyEvent //////////////////////////////////////////////////
1282
1283 wxDynamicSashUnifyEvent::wxDynamicSashUnifyEvent() {
1284     m_eventObject = NULL;
1285     m_eventType = wxEVT_DYNAMIC_SASH_UNIFY;
1286 }
1287
1288 wxDynamicSashUnifyEvent::wxDynamicSashUnifyEvent(wxObject *object) {
1289     m_eventObject = object;
1290     m_eventType = wxEVT_DYNAMIC_SASH_UNIFY;
1291 }
1292
1293 IMPLEMENT_DYNAMIC_CLASS(wxDynamicSashUnifyEvent, wxCommandEvent)
1294
1295 // wxDynamicSsahReparentEvent ///////////////////////////////////////////////
1296
1297 wxDynamicSashReparentEvent::wxDynamicSashReparentEvent() {
1298     m_eventObject = NULL;
1299     m_eventType = wxEVT_DYNAMIC_SASH_REPARENT;
1300 }
1301
1302 wxDynamicSashReparentEvent::wxDynamicSashReparentEvent(wxObject *object) {
1303     m_eventObject = object;
1304     m_eventType = wxEVT_DYNAMIC_SASH_REPARENT;
1305 }
1306
1307 wxDynamicSashReparentEvent::wxDynamicSashReparentEvent(const wxDynamicSashReparentEvent& evt)
1308     : wxEvent(evt)
1309 {
1310 }
1311
1312 IMPLEMENT_DYNAMIC_CLASS(wxDynamicSashReparentEvent, wxEvent)
1313
1314 /////////////////////////////////////////////////////////////////////////////