class DubList(wx.Frame):
class Node(wx.TextCtrl):
def __init__(self, parent, id, value, pos, size, style, validator,
name, listPtr):
super(DubList.Node, self).__init__(parent, id, value, pos, size,
style, validator, name)
print "Node"
self.nodesizer = wx.FlexGridSizer(cols=2, vgap=1, hgap=1)
self.popButton = wx.Button(self, wx.ID_ANY, "K",
wx.DefaultPosition, (11, 11))
self.pushButton = wx.Button(self, wx.ID_ANY, "P",
wx.DefaultPosition + (0, 13), (11, 11))
self.listManager = listPtr
self.next = None
self.prev = None
self.val = None
self.point = self.GetPosition()
self.Bind(wx.EVT_BUTTON, listPtr.onRemove, self.popButton)
self.Bind(wx.EVT_BUTTON, listPtr.onPush, self.pushButton)
def __init__(self, parent, id, title, pos, size, style, name):
super(DubList, self).__init__(parent, id, title, pos, size, style,
name)
masterSizer = wx.BoxSizer(wx.VERTICAL)
#self.SetSizeHints(wx.DefaultSize, wx.DefaultSize)
self.nodeNumbers = 0
#self.listWindow = scrolledpanel(self, wx.ID_ANY, self.Position, self.Size, wx.VSCROLL, "list window")
self.listWindow = ScrolledPanel(self, wx.ID_ANY, self.GetPosition(),
self.GetSize(),
wx.TAB_TRAVERSAL | wx.VSCROLL,
"list window")
self.listWindow.SetupScrolling(0, 1, 0, 20, 1, 1)
#self.listWindow.SetScrollRate(5,5) not needced
self.listOfNodes = []
self.mysizer = wx.GridBagSizer(5, 5)
#self.mysizer = wx.BoxSizer(wx.VERTICAL)
button = wx.Button(self.listWindow, wx.ID_ANY, "push new node",
wx.DefaultPosition + (150, 0), wx.DefaultSize, 0,
wx.DefaultValidator, "make")
button.Bind(wx.EVT_BUTTON, self.buttonDown, button)
button0 = wx.Button(self.listWindow, wx.ID_ANY, "pop last node",
wx.DefaultPosition + (260, 0), wx.DefaultSize,
wx.BU_EXACTFIT, wx.DefaultValidator, "take")
button0.Bind(wx.EVT_BUTTON, self.button0Down, button0)
#layout
#self.mysizer.SetSizeHints(self.listWindow) not needed
#self.mysizer.Add(button, 0,0,1,None)
#self.mysizer.Add(button0, 0,0,1,None)
self.mysizer.Add(button, (0, 1), (0, 0), 0, 1, "addButton")
self.mysizer.Add(button0, (1, 1), (0, 0), 0, 1, "removeButton")
self.listWindow.SetSizer(self.mysizer)
self.mysizer.Fit(self.listWindow)
self.listWindow.SetAutoLayout(1)
def onRemove(self, event):
button = event.GetEventObject()
button = button.GetParent()
print "middle pop", button.val
#patch pointers of adjacent Nodes
if button.prev is not None:
button.prev.next = button.next
if button.next is not None:
button.next.prev = button.prev
#iter = button.next
position = self.mysizer.FindItem(button) #find GBSizerItem
gap = position.GetPos()
iter = button
self.mysizer.Detach(button)
#push all the itesm below the target node up one unit
while (iter):
if (iter.next is not None):
newgap = self.mysizer.GetItemPosition(iter.next)
self.mysizer.SetItemPosition(iter.next, gap)
gap = newgap
iter = iter.next
else:
break
self.listOfNodes.remove(button)
self.mysizer.FitInside(self.listWindow)
self.mysizer.Layout()
button.Destroy()
def onPush(self, event):
#get infor for shifter
button = event.GetEventObject()
button = button.GetParent()
print "middle push", button.val
namestring = "button" + str(self.nodeNumbers)
#get index of node being clicked
print "index", 2 + self.listOfNodes.index(button)
targetIndex = self.listOfNodes.index(button)
targetposition = self.mysizer.GetItemPosition(button)
targetposition.Row += 1
#push new node at btome of clicked node, and shift whole list bewlow it, down one Unit
firstNode = self.listOfNodes[targetIndex] # head of list
#shifter
#walk is how many nodes we need to push down, or "walk" to
walk = 0
while firstNode.next is not None: #iter until eol
firstNode = firstNode.next
walk += 1
while walk:
lastPos = self.mysizer.GetItemPosition(firstNode)
lastPos.row += 1
self.mysizer.SetItemPosition(firstNode, lastPos)
firstNode = firstNode.prev
walk -= 1
#malloc and push
create = self.Node(self.listWindow, wx.ID_ANY, namestring,
wx.DefaultPosition, wx.DefaultSize, 0,
wx.DefaultValidator, namestring, self)
if firstNode.next:
firstNode.next.prev = create
create.next = firstNode.next
firstNode.next = create
create.prev = firstNode
self.listOfNodes.insert(targetIndex + 1, create)
self.nodeNumbers += 1
self.mysizer.Add(create, targetposition, (0, 0), 0, 1, namestring)
self.mysizer.FitInside(self.listWindow)
self.listWindow.ScrollChildIntoView(create)
print self.nodeNumbers
def buttonDown(self, event):
print "LIST: push pressed"
namestring = "button"
# a list
if len(self.listOfNodes) is not 0:
firstNode = self.listOfNodes[0] # head of list
while firstNode.next is not None: #iter until eol
firstNode = firstNode.next
namestring += str(self.nodeNumbers)
#create = Node(self.listWindow, wx.ID_ANY,namestring,firstNode.point + (0,25), wx.DefaultSize, 0, wx.DefaultValidator, namestring)
create = self.Node(self.listWindow, wx.ID_ANY, namestring,
firstNode.point, wx.DefaultSize, 0,
wx.DefaultValidator, namestring, self)
create.val = len(self.listOfNodes)
firstNode.next = create
create.prev = firstNode
# no list
else:
namestring += str(len(self.listOfNodes))
create = self.Node(self.listWindow, wx.ID_ANY, namestring,
wx.DefaultPosition, wx.DefaultSize, 0,
wx.DefaultValidator, namestring, self)
create.val = len(self.listOfNodes)
create.parent = self
self.nodeNumbers += 1
#self.mysizer.Add(create,0,0,1,namestring) #boxsizer add
self.mysizer.Add(create, (1 + len(self.listOfNodes), 2), (0, 0), 0, 1,
namestring)
self.listOfNodes.append(create)
self.mysizer.FitInside(self.listWindow)
#self.listWindow.SetFocus()not needed
self.listWindow.ScrollChildIntoView(create)
#self.listWindow.Refresh() not needed
#self.listWindow.Update() not needed
#self.mysizer.Layout() not needed
print self.nodeNumbers
def button0Down(self, event):
print "LIST: pop pressed"
if len(self.listOfNodes) is not 0:
lastNode = self.listOfNodes[len(self.listOfNodes) -
1] #grab last node
try:
prev = lastNode.prev
prev.next = None
except:
print "last node"
self.mysizer.Detach(lastNode)
self.listOfNodes.remove(lastNode)
lastNode.Destroy()
self.mysizer.FitInside(self.listWindow)
self.mysizer.Layout()
else:
print "no list"
