Class: Fzeet::TreeViewMethods::Item

Inherits:
Object
  • Object
show all
Defined in:
lib/fzeet/windows/comctl/TreeView.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(text) ⇒ Item

Returns a new instance of Item.



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# File 'lib/fzeet/windows/comctl/TreeView.rb', line 220

def initialize(text) @text = text end

Instance Attribute Details

#handle ⇒ Object

Returns the value of attribute handle.



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# File 'lib/fzeet/windows/comctl/TreeView.rb', line 222

def handle
  @handle
end

#parent ⇒ Object

Returns the value of attribute parent.



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# File 'lib/fzeet/windows/comctl/TreeView.rb', line 222

def parent
  @parent
end

#root ⇒ Object

Returns the value of attribute root.



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# File 'lib/fzeet/windows/comctl/TreeView.rb', line 222

def root
  @root
end

#text ⇒ Object (readonly)

Returns the value of attribute text.



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# File 'lib/fzeet/windows/comctl/TreeView.rb', line 222

def text
  @text
end

Instance Method Details

#append(text) ⇒ Object 



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# File 'lib/fzeet/windows/comctl/TreeView.rb', line 228

def append(text)
  item = Item.new(text)

  tvis = Windows::TVINSERTSTRUCT.new

  tvis[:hInsertAfter] = Windows::TVI_LAST
  tvis[:hParent] = @handle

  tvi = tvis[:item]

  tvi[:mask] = Windows::TVIF_TEXT
  tvi[:pszText] = ptext = FFI::MemoryPointer.from_string(item.text)

  item.root, item.parent = @root, self
  item.handle = @root.sendmsg(:insertitem, 0, tvis.pointer)

  item
ensure
  ptext.free
end