Class: Wx::TreeCtrl

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/wx/classes/treectrl.rb

Overview

Hierarchical control with items

Instance Method Summary collapse

Instance Method Details

#get_children(parent) ⇒ Object

Return the children of parent as an array of TreeItemIDs.



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# File 'lib/wx/classes/treectrl.rb', line 9

def get_children(parent)
  kids = [ get_first_child(parent) ]
  return [] if kids[0].zero?

  while kid = get_next_sibling(kids.last) and not kid.zero?
    kids << kid
  end
  kids
end

#get_item_rect(tree_item_id) ⇒ Object

Returns a Wx::Rect corresponding to the edges of an individual tree item, including the button, identified by id. The standard wxWidgets API for getting the pixel location of an item is unrubyish, using an input/output parameter. But since the underlying get_bounding_rect method works, it’s easier to fix the API in Ruby than adding more to the already-toxic swig interface TreeCtrl.i file.



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# File 'lib/wx/classes/treectrl.rb', line 25

def get_item_rect(tree_item_id)
  rect = Wx::Rect.new
  if get_bounding_rect(tree_item_id, rect, false)
    return rect
  else
    return nil
  end
end

#get_label_rect(tree_item_id) ⇒ Object

Returns a Wx::Rect corresponding to the edges of an individual tree item’s text label. See above.



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# File 'lib/wx/classes/treectrl.rb', line 36

def get_label_rect(tree_item_id)
  rect = Wx::Rect.new
  if get_bounding_rect(tree_item_id, rect, true)
    return rect
  else
    nil
  end
end