wxPython/wx/lib/multisash.py

   1 #----------------------------------------------------------------------
   2 # Name:         multisash
   3 # Purpose:      Multi Sash control
   4 #
   5 # Author:       Gerrit van Dyk
   6 #
   7 # Created:      2002/11/20
   8 # Version:      0.1
   9 # RCS-ID:       $Id$
  10 # License:      wxWindows license
  11 #----------------------------------------------------------------------
  12 # 12/09/2003 - Jeff Grimmett (grimmtooth@softhome.net)
  13 #
  14 # o 2.5 compatability update.
  15 #
  16 # 12/20/2003 - Jeff Grimmett (grimmtooth@softhome.net)
  17 #
  18 # o wxMultiSash -> MultiSash
  19 # o wxMultiSplit -> MultiSplit wxMultiViewLeaf
  20 # o wxMultiViewLeaf -> MultiViewLeaf
  21 #
  22
  23 import wx
  24
  25 MV_HOR = 0
  26 MV_VER = not MV_HOR
  27
  28 SH_SIZE = 5
  29 CR_SIZE = SH_SIZE * 3
  30
  31 #----------------------------------------------------------------------
  32
  33 class MultiSash(wx.Window):
  34     def __init__(self, *_args,**_kwargs):
  35         apply(wx.Window.__init__,(self,) + _args,_kwargs)
  36         self._defChild = EmptyChild
  37         self.child = MultiSplit(self,self,(0,0),self.GetSize())
  38         self.Bind(wx.EVT_SIZE,self.OnMultiSize)
  39
  40     def SetDefaultChildClass(self,childCls):
  41         self._defChild = childCls
  42         self.child.DefaultChildChanged()
  43
  44     def OnMultiSize(self,evt):
  45         self.child.SetSize(self.GetSize())
  46
  47     def UnSelect(self):
  48         self.child.UnSelect()
  49
  50     def Clear(self):
  51         old = self.child
  52         self.child = MultiSplit(self,self,(0,0),self.GetSize())
  53         old.Destroy()
  54         self.child.OnSize(None)
  55
  56     def GetSaveData(self):
  57         saveData = {}
  58         saveData['_defChild'] = str(self._defChild)
  59         saveData['child'] = self.child.GetSaveData()
  60         return saveData
  61
  62     def SetSaveData(self,data):
  63         dChild = data['_defChild']
  64         mod = dChild.split('.')[0]
  65         exec 'import %s' % mod
  66         self._defChild = eval(dChild)
  67         old = self.child
  68         self.child = MultiSplit(self,self,wxPoint(0,0),self.GetSize())
  69         self.child.SetSaveData(data['child'])
  70         old.Destroy()
  71         self.OnMultiSize(None)
  72         self.child.OnSize(None)
  73
  74
  75 #----------------------------------------------------------------------
  76
  77
  78 class MultiSplit(wx.Window):
  79     def __init__(self,multiView,parent,pos,size,view1 = None):
  80         wx.Window.__init__(self,id = -1,parent = parent,pos = pos,size = size,
  81                           style = wx.CLIP_CHILDREN)
  82         self.multiView = multiView
  83         self.view2 = None
  84         if view1:
  85             self.view1 = view1
  86             self.view1.Reparent(self)
  87             self.view1.MoveXY(0,0)
  88         else:
  89             self.view1 = MultiViewLeaf(self.multiView,self,
  90                                          (0,0),self.GetSize())
  91         self.direction = None
  92
  93         self.Bind(wx.EVT_SIZE,self.OnSize)
  94
  95     def GetSaveData(self):
  96         saveData = {}
  97         if self.view1:
  98             saveData['view1'] = self.view1.GetSaveData()
  99             if isinstance(self.view1,MultiSplit):
 100                 saveData['view1IsSplit'] = 1
 101         if self.view2:
 102             saveData['view2'] = self.view2.GetSaveData()
 103             if isinstance(self.view2,MultiSplit):
 104                 saveData['view2IsSplit'] = 1
 105         saveData['direction'] = self.direction
 106         v1,v2 = self.GetPosition()
 107         saveData['x'] = v1
 108         saveData['y'] = v2
 109         v1,v2 = self.GetSize()
 110         saveData['w'] = v1
 111         saveData['h'] = v2
 112         return saveData
 113
 114     def SetSaveData(self,data):
 115         self.direction = data['direction']
 116         self.SetDimensions(data['x'],data['y'],data['w'],data['h'])
 117         v1Data = data.get('view1',None)
 118         if v1Data:
 119             isSplit = data.get('view1IsSplit',None)
 120             old = self.view1
 121             if isSplit:
 122                 self.view1 = MultiSplit(self.multiView,self,
 123                                           (0,0),self.GetSize())
 124             else:
 125                 self.view1 = MultiViewLeaf(self.multiView,self,
 126                                              (0,0),self.GetSize())
 127             self.view1.SetSaveData(v1Data)
 128             if old:
 129                 old.Destroy()
 130         v2Data = data.get('view2',None)
 131         if v2Data:
 132             isSplit = data.get('view2IsSplit',None)
 133             old = self.view2
 134             if isSplit:
 135                 self.view2 = MultiSplit(self.multiView,self,
 136                                           (0,0),self.GetSize())
 137             else:
 138                 self.view2 = MultiViewLeaf(self.multiView,self,
 139                                              (0,0),self.GetSize())
 140             self.view2.SetSaveData(v2Data)
 141             if old:
 142                 old.Destroy()
 143         if self.view1:
 144             self.view1.OnSize(None)
 145         if self.view2:
 146             self.view2.OnSize(None)
 147
 148     def UnSelect(self):
 149         if self.view1:
 150             self.view1.UnSelect()
 151         if self.view2:
 152             self.view2.UnSelect()
 153
 154     def DefaultChildChanged(self):
 155         if not self.view2:
 156             self.view1.DefaultChildChanged()
 157
 158     def AddLeaf(self,direction,caller,pos):
 159         if self.view2:
 160             if caller == self.view1:
 161                 self.view1 = MultiSplit(self.multiView,self,
 162                                           caller.GetPosition(),
 163                                           caller.GetSize(),
 164                                           caller)
 165                 self.view1.AddLeaf(direction,caller,pos)
 166             else:
 167                 self.view2 = MultiSplit(self.multiView,self,
 168                                           caller.GetPosition(),
 169                                           caller.GetSize(),
 170                                           caller)
 171                 self.view2.AddLeaf(direction,caller,pos)
 172         else:
 173             self.direction = direction
 174             w,h = self.GetSize()
 175             if direction == MV_HOR:
 176                 x,y = (pos,0)
 177                 w1,h1 = (w-pos,h)
 178                 w2,h2 = (pos,h)
 179             else:
 180                 x,y = (0,pos)
 181                 w1,h1 = (w,h-pos)
 182                 w2,h2 = (w,pos)
 183             self.view2 = MultiViewLeaf(self.multiView, self, (x,y), (w1,h1))
 184             self.view1.SetSize((w2,h2))
 185             self.view2.OnSize(None)
 186
 187     def DestroyLeaf(self,caller):
 188         if not self.view2:              # We will only have 2 windows if
 189             return                      # we need to destroy any
 190         parent = self.GetParent()       # Another splitview
 191         if parent == self.multiView:    # We'r at the root
 192             if caller == self.view1:
 193                 old = self.view1
 194                 self.view1 = self.view2
 195                 self.view2 = None
 196                 old.Destroy()
 197             else:
 198                 self.view2.Destroy()
 199                 self.view2 = None
 200             self.view1.SetSize(self.GetSize())
 201             self.view1.Move(self.GetPosition())
 202         else:
 203             w,h = self.GetSize()
 204             x,y = self.GetPosition()
 205             if caller == self.view1:
 206                 if self == parent.view1:
 207                     parent.view1 = self.view2
 208                 else:
 209                     parent.view2 = self.view2
 210                 self.view2.Reparent(parent)
 211                 self.view2.SetDimensions(x,y,w,h)
 212             else:
 213                 if self == parent.view1:
 214                     parent.view1 = self.view1
 215                 else:
 216                     parent.view2 = self.view1
 217                 self.view1.Reparent(parent)
 218                 self.view1.SetDimensions(x,y,w,h)
 219             self.view1 = None
 220             self.view2 = None
 221             self.Destroy()
 222
 223     def CanSize(self,side,view):
 224         if self.SizeTarget(side,view):
 225             return True
 226         return False
 227
 228     def SizeTarget(self,side,view):
 229         if self.direction == side and self.view2 and view == self.view1:
 230             return self
 231         parent = self.GetParent()
 232         if parent != self.multiView:
 233             return parent.SizeTarget(side,self)
 234         return None
 235
 236     def SizeLeaf(self,leaf,pos,side):
 237         if self.direction != side:
 238             return
 239         if not (self.view1 and self.view2):
 240             return
 241         if pos < 10: return
 242         w,h = self.GetSize()
 243         if side == MV_HOR:
 244             if pos > w - 10: return
 245         else:
 246             if pos > h - 10: return
 247         if side == MV_HOR:
 248             self.view1.SetDimensions(0,0,pos,h)
 249             self.view2.SetDimensions(pos,0,w-pos,h)
 250         else:
 251             self.view1.SetDimensions(0,0,w,pos)
 252             self.view2.SetDimensions(0,pos,w,h-pos)
 253
 254     def OnSize(self,evt):
 255         if not self.view2:
 256             self.view1.SetSize(self.GetSize())
 257             self.view1.OnSize(None)
 258             return
 259         v1w,v1h = self.view1.GetSize()
 260         v2w,v2h = self.view2.GetSize()
 261         v1x,v1y = self.view1.GetPosition()
 262         v2x,v2y = self.view2.GetPosition()
 263         w,h = self.GetSize()
 264
 265         if v1x != v2x:
 266             ratio = float(w) / float((v1w + v2w))
 267             v1w *= ratio
 268             v2w = w - v1w
 269             v2x = v1w
 270         else:
 271             v1w = v2w = w
 272
 273         if v1y != v2y:
 274             ratio = float(h) / float((v1h + v2h))
 275             v1h *= ratio
 276             v2h = h - v1h
 277             v2y = v1h
 278         else:
 279             v1h = v2h = h
 280
 281         self.view1.SetDimensions(v1x,v1y,v1w,v1h)
 282         self.view2.SetDimensions(v2x,v2y,v2w,v2h)
 283         self.view1.OnSize(None)
 284         self.view2.OnSize(None)
 285
 286
 287 #----------------------------------------------------------------------
 288
 289
 290 class MultiViewLeaf(wx.Window):
 291     def __init__(self,multiView,parent,pos,size):
 292         wx.Window.__init__(self,id = -1,parent = parent,pos = pos,size = size,
 293                           style = wx.CLIP_CHILDREN)
 294         self.multiView = multiView
 295
 296         self.sizerHor = MultiSizer(self,MV_HOR)
 297         self.sizerVer = MultiSizer(self,MV_VER)
 298         self.creatorHor = MultiCreator(self,MV_HOR)
 299         self.creatorVer = MultiCreator(self,MV_VER)
 300         self.detail = MultiClient(self,multiView._defChild)
 301         self.closer = MultiCloser(self)
 302
 303         self.Bind(wx.EVT_SIZE,self.OnSize)
 304
 305     def GetSaveData(self):
 306         saveData = {}
 307         saveData['detailClass'] = str(self.detail.child.__class__)
 308         if hasattr(self.detail.child,'GetSaveData'):
 309             attr = getattr(self.detail.child,'GetSaveData')
 310             if callable(attr):
 311                 dData = attr()
 312                 if dData:
 313                     saveData['detail'] = dData
 314         v1,v2 = self.GetPosition()
 315         saveData['x'] = v1
 316         saveData['y'] = v2
 317         v1,v2 = self.GetSize()
 318         saveData['w'] = v1
 319         saveData['h'] = v2
 320         return saveData
 321
 322     def SetSaveData(self,data):
 323         dChild = data['detailClass']
 324         mod = dChild.split('.')[0]
 325         exec 'import %s' % mod
 326         detClass = eval(dChild)
 327         self.SetDimensions(data['x'],data['y'],data['w'],data['h'])
 328         old = self.detail
 329         self.detail = MultiClient(self,detClass)
 330         dData = data.get('detail',None)
 331         if dData:
 332             if hasattr(self.detail.child,'SetSaveData'):
 333                 attr = getattr(self.detail.child,'SetSaveData')
 334                 if callable(attr):
 335                     attr(dData)
 336         old.Destroy()
 337         self.detail.OnSize(None)
 338
 339     def UnSelect(self):
 340         self.detail.UnSelect()
 341
 342     def DefaultChildChanged(self):
 343         self.detail.SetNewChildCls(self.multiView._defChild)
 344
 345     def AddLeaf(self,direction,pos):
 346         if pos < 10: return
 347         w,h = self.GetSize()
 348         if direction == MV_VER:
 349             if pos > h - 10: return
 350         else:
 351             if pos > w - 10: return
 352         self.GetParent().AddLeaf(direction,self,pos)
 353
 354     def DestroyLeaf(self):
 355         self.GetParent().DestroyLeaf(self)
 356
 357     def SizeTarget(self,side):
 358         return self.GetParent().SizeTarget(side,self)
 359
 360     def CanSize(self,side):
 361         return self.GetParent().CanSize(side,self)
 362
 363     def OnSize(self,evt):
 364         self.sizerHor.OnSize(evt)
 365         self.sizerVer.OnSize(evt)
 366         self.creatorHor.OnSize(evt)
 367         self.creatorVer.OnSize(evt)
 368         self.detail.OnSize(evt)
 369         self.closer.OnSize(evt)
 370
 371 #----------------------------------------------------------------------
 372
 373
 374 class MultiClient(wx.Window):
 375     def __init__(self,parent,childCls):
 376         w,h = self.CalcSize(parent)
 377         wx.Window.__init__(self,id = -1,parent = parent,
 378                           pos = (0,0),
 379                           size = (w,h),
 380                           style = wx.CLIP_CHILDREN | wx.SUNKEN_BORDER)
 381         self.child = childCls(self)
 382         self.child.MoveXY(2,2)
 383         self.normalColour = self.GetBackgroundColour()
 384         self.selected = False
 385
 386         self.Bind(wx.EVT_SET_FOCUS,self.OnSetFocus)
 387         self.Bind(wx.EVT_CHILD_FOCUS,self.OnChildFocus)
 388
 389     def UnSelect(self):
 390         if self.selected:
 391             self.selected = False
 392             self.SetBackgroundColour(self.normalColour)
 393             self.Refresh()
 394
 395     def Select(self):
 396         self.GetParent().multiView.UnSelect()
 397         self.selected = True
 398         self.SetBackgroundColour(wx.Colour(255,255,0)) # Yellow
 399         self.Refresh()
 400
 401     def CalcSize(self,parent):
 402         w,h = parent.GetSize()
 403         w -= SH_SIZE
 404         h -= SH_SIZE
 405         return (w,h)
 406
 407     def OnSize(self,evt):
 408         w,h = self.CalcSize(self.GetParent())
 409         self.SetDimensions(0,0,w,h)
 410         w,h = self.GetClientSize()
 411         self.child.SetSize((w-4,h-4))
 412
 413     def SetNewChildCls(self,childCls):
 414         if self.child:
 415             self.child.Destroy()
 416             self.child = None
 417         self.child = childCls(self)
 418         self.child.MoveXY(2,2)
 419
 420     def OnSetFocus(self,evt):
 421         self.Select()
 422
 423     def OnChildFocus(self,evt):
 424         self.OnSetFocus(evt)
 425 ##        from Funcs import FindFocusedChild
 426 ##        child = FindFocusedChild(self)
 427 ##        child.Bind(wx.EVT_KILL_FOCUS,self.OnChildKillFocus)
 428
 429
 430 #----------------------------------------------------------------------
 431
 432
 433 class MultiSizer(wx.Window):
 434     def __init__(self,parent,side):
 435         self.side = side
 436         x,y,w,h = self.CalcSizePos(parent)
 437         wx.Window.__init__(self,id = -1,parent = parent,
 438                           pos = (x,y),
 439                           size = (w,h),
 440                           style = wx.CLIP_CHILDREN)
 441
 442         self.px = None                  # Previous X
 443         self.py = None                  # Previous Y
 444         self.isDrag = False             # In Dragging
 445         self.dragTarget = None          # View being sized
 446
 447         self.Bind(wx.EVT_LEAVE_WINDOW,self.OnLeave)
 448         self.Bind(wx.EVT_ENTER_WINDOW,self.OnEnter)
 449         self.Bind(wx.EVT_MOTION,self.OnMouseMove)
 450         self.Bind(wx.EVT_LEFT_DOWN,self.OnPress)
 451         self.Bind(wx.EVT_LEFT_UP,self.OnRelease)
 452
 453     def CalcSizePos(self,parent):
 454         pw,ph = parent.GetSize()
 455         if self.side == MV_HOR:
 456             x = CR_SIZE + 2
 457             y = ph - SH_SIZE
 458             w = pw - CR_SIZE - SH_SIZE - 2
 459             h = SH_SIZE
 460         else:
 461             x = pw - SH_SIZE
 462             y = CR_SIZE + 2 + SH_SIZE
 463             w = SH_SIZE
 464             h = ph - CR_SIZE - SH_SIZE - 4 - SH_SIZE # For Closer
 465         return (x,y,w,h)
 466
 467     def OnSize(self,evt):
 468         x,y,w,h = self.CalcSizePos(self.GetParent())
 469         self.SetDimensions(x,y,w,h)
 470
 471     def OnLeave(self,evt):
 472         self.SetCursor(wx.StockCursor(wx.CURSOR_ARROW))
 473
 474     def OnEnter(self,evt):
 475         if not self.GetParent().CanSize(not self.side):
 476             return
 477         if self.side == MV_HOR:
 478             self.SetCursor(wx.StockCursor(wx.CURSOR_SIZENS))
 479         else:
 480             self.SetCursor(wx.StockCursor(wx.CURSOR_SIZEWE))
 481
 482     def OnMouseMove(self,evt):
 483         if self.isDrag:
 484             DrawSash(self.dragTarget,self.px,self.py,self.side)
 485             self.px,self.py = self.ClientToScreenXY(evt.m_x,evt.m_y)
 486             self.px,self.py = self.dragTarget.ScreenToClientXY(self.px,self.py)
 487             DrawSash(self.dragTarget,self.px,self.py,self.side)
 488         else:
 489             evt.Skip()
 490
 491     def OnPress(self,evt):
 492         self.dragTarget = self.GetParent().SizeTarget(not self.side)
 493         if self.dragTarget:
 494             self.isDrag = True
 495             self.px,self.py = self.ClientToScreenXY(evt.m_x,evt.m_y)
 496             self.px,self.py = self.dragTarget.ScreenToClientXY(self.px,self.py)
 497             DrawSash(self.dragTarget,self.px,self.py,self.side)
 498             self.CaptureMouse()
 499         else:
 500             evt.Skip()
 501
 502     def OnRelease(self,evt):
 503         if self.isDrag:
 504             DrawSash(self.dragTarget,self.px,self.py,self.side)
 505             self.ReleaseMouse()
 506             self.isDrag = False
 507             if self.side == MV_HOR:
 508                 self.dragTarget.SizeLeaf(self.GetParent(),
 509                                          self.py,not self.side)
 510             else:
 511                 self.dragTarget.SizeLeaf(self.GetParent(),
 512                                          self.px,not self.side)
 513             self.dragTarget = None
 514         else:
 515             evt.Skip()
 516
 517 #----------------------------------------------------------------------
 518
 519
 520 class MultiCreator(wx.Window):
 521     def __init__(self,parent,side):
 522         self.side = side
 523         x,y,w,h = self.CalcSizePos(parent)
 524         wx.Window.__init__(self,id = -1,parent = parent,
 525                           pos = (x,y),
 526                           size = (w,h),
 527                           style = wx.CLIP_CHILDREN)
 528
 529         self.px = None                  # Previous X
 530         self.py = None                  # Previous Y
 531         self.isDrag = False           # In Dragging
 532
 533         self.Bind(wx.EVT_LEAVE_WINDOW,self.OnLeave)
 534         self.Bind(wx.EVT_ENTER_WINDOW,self.OnEnter)
 535         self.Bind(wx.EVT_MOTION,self.OnMouseMove)
 536         self.Bind(wx.EVT_LEFT_DOWN,self.OnPress)
 537         self.Bind(wx.EVT_LEFT_UP,self.OnRelease)
 538         self.Bind(wx.EVT_PAINT,self.OnPaint)
 539
 540     def CalcSizePos(self,parent):
 541         pw,ph = parent.GetSize()
 542         if self.side == MV_HOR:
 543             x = 2
 544             y = ph - SH_SIZE
 545             w = CR_SIZE
 546             h = SH_SIZE
 547         else:
 548             x = pw - SH_SIZE
 549             y = 4 + SH_SIZE             # Make provision for closer
 550             w = SH_SIZE
 551             h = CR_SIZE
 552         return (x,y,w,h)
 553
 554     def OnSize(self,evt):
 555         x,y,w,h = self.CalcSizePos(self.GetParent())
 556         self.SetDimensions(x,y,w,h)
 557
 558     def OnLeave(self,evt):
 559         self.SetCursor(wx.StockCursor(wx.CURSOR_ARROW))
 560
 561     def OnEnter(self,evt):
 562         if self.side == MV_HOR:
 563             self.SetCursor(wx.StockCursor(wx.CURSOR_HAND))
 564         else:
 565             self.SetCursor(wx.StockCursor(wx.CURSOR_POINT_LEFT))
 566
 567     def OnMouseMove(self,evt):
 568         if self.isDrag:
 569             parent = self.GetParent()
 570             DrawSash(parent,self.px,self.py,self.side)
 571             self.px,self.py = self.ClientToScreenXY(evt.m_x,evt.m_y)
 572             self.px,self.py = parent.ScreenToClientXY(self.px,self.py)
 573             DrawSash(parent,self.px,self.py,self.side)
 574         else:
 575             evt.Skip()
 576
 577     def OnPress(self,evt):
 578         self.isDrag = True
 579         parent = self.GetParent()
 580         self.px,self.py = self.ClientToScreenXY(evt.m_x,evt.m_y)
 581         self.px,self.py = parent.ScreenToClientXY(self.px,self.py)
 582         DrawSash(parent,self.px,self.py,self.side)
 583         self.CaptureMouse()
 584
 585     def OnRelease(self,evt):
 586         if self.isDrag:
 587             parent = self.GetParent()
 588             DrawSash(parent,self.px,self.py,self.side)
 589             self.ReleaseMouse()
 590             self.isDrag = False
 591
 592             if self.side == MV_HOR:
 593                 parent.AddLeaf(MV_VER,self.py)
 594             else:
 595                 parent.AddLeaf(MV_HOR,self.px)
 596         else:
 597             evt.Skip()
 598
 599     def OnPaint(self,evt):
 600         dc = wx.PaintDC(self)
 601         dc.SetBackground(wx.Brush(self.GetBackgroundColour(),wx.SOLID))
 602         dc.Clear()
 603
 604         highlight = wx.Pen(wx.SystemSettings_GetColour(wx.SYS_COLOUR_BTNHIGHLIGHT), 1, wx.SOLID)
 605         shadow = wx.Pen(wx.SystemSettings_GetColour(wx.SYS_COLOUR_BTNSHADOW), 1, wx.SOLID)
 606         black = wx.Pen(wx.BLACK,1,wx.SOLID)
 607         w,h = self.GetSize()
 608         w -= 1
 609         h -= 1
 610
 611         # Draw outline
 612         dc.SetPen(highlight)
 613         dc.DrawLine((0,0), (0,h))
 614         dc.DrawLine((0,0), (w,0))
 615         dc.SetPen(black)
 616         dc.DrawLine((0,h), (w+1,h))
 617         dc.DrawLine((w,0), (w,h))
 618         dc.SetPen(shadow)
 619         dc.DrawLine((w-1,2), (w-1,h))
 620
 621 #----------------------------------------------------------------------
 622
 623
 624 class MultiCloser(wx.Window):
 625     def __init__(self,parent):
 626         x,y,w,h = self.CalcSizePos(parent)
 627         wx.Window.__init__(self,id = -1,parent = parent,
 628                           pos = (x,y),
 629                           size = (w,h),
 630                           style = wx.CLIP_CHILDREN)
 631
 632         self.down = False
 633         self.entered = False
 634
 635         self.Bind(wx.EVT_LEFT_DOWN,self.OnPress)
 636         self.Bind(wx.EVT_LEFT_UP,self.OnRelease)
 637         self.Bind(wx.EVT_PAINT,self.OnPaint)
 638         self.Bind(wx.EVT_LEAVE_WINDOW,self.OnLeave)
 639         self.Bind(wx.EVT_ENTER_WINDOW,self.OnEnter)
 640
 641     def OnLeave(self,evt):
 642         self.SetCursor(wx.StockCursor(wx.CURSOR_ARROW))
 643         self.entered = False
 644
 645     def OnEnter(self,evt):
 646         self.SetCursor(wx.StockCursor(wx.CURSOR_BULLSEYE))
 647         self.entered = True
 648
 649     def OnPress(self,evt):
 650         self.down = True
 651         evt.Skip()
 652
 653     def OnRelease(self,evt):
 654         if self.down and self.entered:
 655             self.GetParent().DestroyLeaf()
 656         else:
 657             evt.Skip()
 658         self.down = False
 659
 660     def OnPaint(self,evt):
 661         dc = wx.PaintDC(self)
 662         dc.SetBackground(wx.Brush(wx.RED,wx.SOLID))
 663         dc.Clear()
 664
 665     def CalcSizePos(self,parent):
 666         pw,ph = parent.GetSize()
 667         x = pw - SH_SIZE
 668         w = SH_SIZE
 669         h = SH_SIZE + 2
 670         y = 1
 671         return (x,y,w,h)
 672
 673     def OnSize(self,evt):
 674         x,y,w,h = self.CalcSizePos(self.GetParent())
 675         self.SetDimensions(x,y,w,h)
 676
 677
 678 #----------------------------------------------------------------------
 679
 680
 681 class EmptyChild(wx.Window):
 682     def __init__(self,parent):
 683         wx.Window.__init__(self,parent,-1, style = wx.CLIP_CHILDREN)
 684
 685
 686 #----------------------------------------------------------------------
 687
 688
 689 def DrawSash(win,x,y,direction):
 690     dc = wx.ScreenDC()
 691     dc.StartDrawingOnTopWin(win)
 692     bmp = wx.EmptyBitmap(8,8)
 693     bdc = wx.MemoryDC()
 694     bdc.SelectObject(bmp)
 695     bdc.DrawRectangle((-1,-1), (10,10))
 696     for i in range(8):
 697         for j in range(8):
 698             if ((i + j) & 1):
 699                 bdc.DrawPoint((i,j))
 700
 701     brush = wx.Brush(wx.Colour(0,0,0))
 702     brush.SetStipple(bmp)
 703
 704     dc.SetBrush(brush)
 705     dc.SetLogicalFunction(wx.XOR)
 706
 707     body_w,body_h = win.GetClientSize()
 708
 709     if y < 0:
 710         y = 0
 711     if y > body_h:
 712         y = body_h
 713     if x < 0:
 714         x = 0
 715     if x > body_w:
 716         x = body_w
 717
 718     if direction == MV_HOR:
 719         x = 0
 720     else:
 721         y = 0
 722
 723     x,y = win.ClientToScreenXY(x,y)
 724
 725     w = body_w
 726     h = body_h
 727
 728     if direction == MV_HOR:
 729         dc.DrawRectangle((x,y-2), (w,4))
 730     else:
 731         dc.DrawRectangle((x-2,y), (4,h))
 732
 733     dc.EndDrawingOnTop()