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# ******************************************************

# * Copyright © 2017-2023 - Jordan Irwin (AntumDeluge) *

# ******************************************************

# * This software is licensed under the MIT license.   *

# * See: LICENSE.txt for details.                      *

# ******************************************************



## Custom sizer classes.

#

#  @module ui.layout



import wx





## @todo Doxygen

class _SizerBase:

  ## Retains spacer at end of items

  #

  #  FIXME: Detect spacer as last item, otherwise call Add instead of Insert

  def AddKeepLast(self, item, proportion=0, flag=0, border=0, userData=None):

    last_index = self.GetItemCount() - 1



    return self.Insert(last_index, item, proportion, flag, border, userData)



    #self.Add(item, proportion, flag, border, userData)



  ## Re-define in inherited classes

  def Insert(self, idx, item, proportion, flag, border, userData):

    pass



  ## Re-define in inherited classes

  def GetChildren(self):

    return list()



  ## Retrieves all sizers contained with the sizer

  def GetChildSizers(self):

    sizers = []

    for SIZER in self.GetChildren():

      SIZER = SIZER.GetSizer()

      if SIZER:

        sizers.append(SIZER)

    return tuple(sizers)



  ## Retrieves all windows contained within the sizer

  def GetChildWindows(self):

    windows = []

    for WIN in self.GetChildren():

      WIN = WIN.GetWindow()

      if WIN:

        windows.append(WIN)

    return tuple(windows)



  ## Retrieves item at give index

  #

  #  @param index

  #    \b \e Integer index of item to retrieve

  #  @param sizer

  #    Get sizer instance instead of window

  def GetItemAtIndex(self, index, sizer=False):

    items = self.GetChildren()

    if items:

      if sizer:

        return items[0].GetSizer()

      return items[0].GetWindow()



  ## Returns the number of items in the sizer

  #

  #  Compatibility method for legacy wx versions

  def GetItemCount(self):

    if wx.MAJOR_VERSION > 2:

      return wx.Sizer.GetItemCount(self)

    return len(self.GetChildren())



  ## Finds index of an item

  def GetItemIndex(self, item):

    index = 0

    for I in self.GetChildren():

      S = I.GetSizer()

      I = I.GetWindow()

      if not I:

        I = S

      if I == item:

        return index

      index += 1

    return None





## @todo Doxygen

class Sizer(wx.Sizer, _SizerBase):

  def __init__(self):

    wx.Sizer.__init__(self)





## @todo Doxygen

class BoxSizer(wx.BoxSizer, _SizerBase):

  def __init__(self, orient):

    wx.BoxSizer.__init__(self, orient)