#!/usr/bin/python2.2
#^--- change the above line to point to your installation of Python


# $Id: //guest/mitch_stuart/perforce/utils/delta/p4DirDialog.py#1 $

from wxPython.wx import *

import p4Util
import pyUtil


class p4DirDialog(wxDialog):
   def __init__(self, dirPath, parent, id, title="Select Directory",
      pos=wxDefaultPosition, size=wxSize(300, 300),
      style=wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER):

      wxDialog.__init__(self, parent, id, title, pos, size, style)

      self.treeCtrl = DirTreeCtrl(self, -1, size=wxSize(300, 300))

      self.rootItemData = DirItemData(dirPath, dirPath)
      self.rootItem = self.treeCtrl.AddRoot(self.rootItemData.name)
      self.treeCtrl.SetPyData(self.rootItem, self.rootItemData)
      self.loadChildren(self.rootItem)
      self.treeCtrl.Expand(self.rootItem)


      self.okButton = wxButton(self, wxID_OK, " OK ")
      self.okButton.SetDefault()

      self.cancelButton = wxButton(self, wxID_CANCEL, " Cancel ")



      sizer = wxBoxSizer(wxVERTICAL)

      sizer.Add(self.treeCtrl, 1, wxEXPAND)

      buttonSizer = wxBoxSizer(wxHORIZONTAL)
      buttonSizer.AddMany([self.okButton, self.cancelButton])
      sizer.Add(buttonSizer, flag=wxALIGN_CENTER)

      self.SetSizer(sizer)
      sizer.Fit(self)

      self.Center()

      EVT_TREE_ITEM_EXPANDING(self, self.treeCtrl.GetId(), self.onItemExpanding)


   def onItemExpanding(self, evt):
      try:
         wxBeginBusyCursor()
         self.loadChildren(evt.GetItem())
      finally:
         wxEndBusyCursor()


   def loadChildren(self, parentItem):
      parentData = self.treeCtrl.GetPyData(parentItem)

      if parentData.loadedChildren:
         return

      # print "Loading children for: %s" % parentData.fullPath

      # Need to delete the current children (if any) before loading the
      # children, because we create a fake child to force the "+" sign to
      # appear when children are not loaded yet (see below).

      self.treeCtrl.DeleteChildren(parentItem)

      startPath = "%s/" % parentData.fullPath
      startPathLen = len(startPath)

      dirs = p4Util.execP4Marshal("dirs %s*" % startPath)

      for dir in dirs:
         fullPath = dir["dir"]
         name = fullPath[startPathLen:]
         item = self.treeCtrl.AppendItem(parentItem, name)
         itemData = DirItemData(name, fullPath)
         self.treeCtrl.SetPyData(item, itemData)

         # Create a fake child to force the "+" sign to appear for this
         # new item.  When the user actually expands the item, we will
         # determine if there are actually any children or not.

         fakeChild = self.treeCtrl.AppendItem(item, "placeholder")
         self.treeCtrl.SetPyData(fakeChild, None)


      self.treeCtrl.SortChildren(parentItem)
      parentData.loadedChildren = True


   def getSelectedFullPath(self):
      selectedItem = self.treeCtrl.GetSelection()
      return self.treeCtrl.GetPyData(selectedItem).fullPath



class DirTreeCtrl(wxTreeCtrl):
   def __init__(self, parent, id, pos=wxDefaultPosition, size=wxDefaultSize,
      style=wxTR_HAS_BUTTONS):
      wxTreeCtrl.__init__(self, parent, id, pos, size, style)

   def OnCompareItems(self, item1, item2):
      return pyUtil.cmpIgnoreCase(self.GetItemText(item1),
         self.GetItemText(item2))





class DirItemData:
   def __init__(self, name, fullPath):
      self.name = name
      self.fullPath = fullPath
      self.loadedChildren = False


class MyApp(wxApp):
   def OnInit(self):
      frame = wxFrame(None, -1, "Test")
      frame.Show(true)
      self.SetTopWindow(frame)
      dialog = p4DirDialog(gRootPath, frame, -1)
      dialog.ShowModal()
      return true


def main():
   app = MyApp(0)
   app.MainLoop()

if __name__ == '__main__':
   gRootPath = "//depot"
   main()