Class: TkComponent::Builder::TkItem

Inherits:
Object
  • Object
show all
Defined in:
lib/tk_component/builder/tk_item.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parent_item, name, options = {}, grid = {}, event_handlers = []) ⇒ TkItem

Returns a new instance of TkItem.



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# File 'lib/tk_component/builder/tk_item.rb', line 13

def initialize(parent_item, name, options = {}, grid = {}, event_handlers = [])
  @native_item = create_native_item(parent_item.native_item, name, options, grid, event_handlers)
  apply_options(options)
  set_grid(grid)
  set_event_handlers(event_handlers)
end

Instance Attribute Details

#native_item ⇒ Object

Returns the value of attribute native_item.



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# File 'lib/tk_component/builder/tk_item.rb', line 5

def native_item
  @native_item
end

Class Method Details

.create(parent_item, name, options = {}, grid = {}, event_handlers = []) ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 7

def self.create(parent_item, name, options = {}, grid = {}, event_handlers = [])
  item_class = ITEM_CLASSES[name.to_sym]
  raise "Don't know how to create #{name}" unless item_class
  item_class.new(parent_item, name, options, grid, event_handlers)
end

Instance Method Details

#apply_internal_grid(grid_map) ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 48

def apply_internal_grid(grid_map)
  grid_map.column_indexes.each { |c| TkGrid.columnconfigure(self.native_item, c, weight: grid_map.column_weight(c)) }
  grid_map.row_indexes.each { |r| TkGrid.rowconfigure(self.native_item, r, weight: grid_map.row_weight(r)) }
end

#apply_option(option, value, to_item = self.native_item) ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 40

def apply_option(option, value, to_item = self.native_item)
  to_item.public_send(option, value)
end

#apply_options(options, to_item = self.native_item) ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 34

def apply_options(options, to_item = self.native_item)
  options.each do |k,v|
    apply_option(k, v, to_item)
  end
end

#built ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 68

def built
end

#create_native_item(parent_native_item, name, options = {}, grid = {}, event_handlers = []) ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 20

def create_native_item(parent_native_item, name, options = {}, grid = {}, event_handlers = [])
  native_item_class(parent_native_item, name, options, grid, event_handlers).new(parent_native_item)
end

#focus ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 71

def focus
  self.native_item.focus
end

#native_item_class(parent_native_item, name, options = {}, grid = {}, event_handlers = []) ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 24

def native_item_class(parent_native_item, name, options = {}, grid = {}, event_handlers = [])
  tk_class = TK_CLASSES[name.to_sym]
  raise "Don't know how to create #{name}" unless tk_class.present?
  return tk_class
end

#remove ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 30

def remove
  @native_item.destroy
end

#set_event_handler(event_handler) ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 57

def set_event_handler(event_handler)
  case event_handler.name
  when :click
    Event.bind_command(event_handler.name, self, event_handler.options, event_handler.lambda)
  when :change
    Event.bind_variable(event_handler.name, self, event_handler.options, event_handler.lambda)
  else
    Event.bind_event(event_handler.name, self, event_handler.options, event_handler.lambda)
  end
end

#set_event_handlers(event_handlers) ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 53

def set_event_handlers(event_handlers)
  event_handlers.each { |eh| set_event_handler(eh) }
end

#set_grid(grid, to_item = self.native_item) ⇒ Object 



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# File 'lib/tk_component/builder/tk_item.rb', line 44

def set_grid(grid, to_item = self.native_item)
  to_item.grid(grid)
end