Class: TkWrapper::Widgets::Grid

Inherits:
Base::Widget show all
Defined in:
lib/widgets/grid.rb

Overview

classification of TkGrid

Constant Summary collapse

Widget = 
TkWrapper::Widgets::Base::Widget

Instance Attribute Summary collapse

Attributes inherited from Base::Widget

#cell, #childs, #config, #font, #ids, #manager, #opts, #winfo

Instance Method Summary collapse

Methods inherited from Base::Widget

#create_tk_widget, #each, #init_id, #initialize_utilities, #normalize_childs, #push, #tk_widget

Constructor Details

#initialize(**arguments) ⇒ Grid

Returns a new instance of Grid.



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# File 'lib/widgets/grid.rb', line 15

def initialize(**arguments)
  parent = arguments.delete(:parent)
  super(**arguments)
  @childs.map! { |row| row.is_a?(Array) ? row : [row] }
  configure_cells_for_grid
  @childs.flatten! && @childs.select! { |cell| cell.is_a?(Widget) }
  parent&.push(self)
end

Instance Attribute Details

#matrix ⇒ Object (readonly)

Returns the value of attribute matrix.



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# File 'lib/widgets/grid.rb', line 7

def matrix
  @matrix
end

#parent ⇒ Object (readonly)

Returns the value of attribute parent.



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# File 'lib/widgets/grid.rb', line 7

def parent
  @parent
end

Instance Method Details

#configure_cells_for_grid ⇒ Object 



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# File 'lib/widgets/grid.rb', line 24

def configure_cells_for_grid
  @childs.each_with_index do |row, row_i|
    row.each_with_index do |cell, col_i|
      next unless cell.is_a?(Widget)

      cell.config.merge({ grid: { row: row_i, column: col_i } })

      configure_colspan(cell, row_i, col_i)
      configure_rowspan(cell, row_i, col_i)
    end
  end
end

#configure_colspan(cell, row_i, col_i) ⇒ Object 



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# File 'lib/widgets/grid.rb', line 37

def configure_colspan(cell, row_i, col_i)
  cols_after_cell = @childs[row_i][(col_i + 1)..]
  colspan = cols_after_cell.reduce(1) do |span, content|
    content == :right ? span + 1 : (break span)
  end
  cell.config.merge({ grid: { columnspan: colspan } })
end

#configure_rowspan(cell, row_i, col_i) ⇒ Object 



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# File 'lib/widgets/grid.rb', line 45

def configure_rowspan(cell, row_i, col_i)
  rows_after_cell = @childs[(row_i + 1)..]
  rowspan = rows_after_cell.reduce(1) do |span, row|
    row[col_i] == :bottom ? span + 1 : (break span)
  end
  cell.config.merge({ grid: { rowspan: rowspan } })
end

#tk_class ⇒ Object 



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# File 'lib/widgets/grid.rb', line 11

def tk_class
  Tk::Tile::Frame
end