Class: RbSDL2::MessageBox::MessageBoxData

Inherits:
Object
  • Object
show all
Defined in:
lib/rb_sdl2/message_box.rb

Instance Method Summary collapse

Constructor Details

#initialize(buttons: nil, colors: nil, escape_key: nil, level: nil, message: nil, return_key: nil, title: nil, window: nil) ⇒ MessageBoxData

Returns a new instance of MessageBoxData.



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# File 'lib/rb_sdl2/message_box.rb', line 15

def initialize(buttons: nil, colors: nil, escape_key: nil, level: nil, message: nil,
               return_key: nil, title: nil, window: nil)
  @st = ::SDL2::SDL_MessageBoxData.new.tap do |data|
    button_data = *buttons
    data[:numbuttons] = num_buttons = button_data.length
    data[:buttons] = @buttons = num_buttons.nonzero? &&
      MessageBoxButtonDataArray.new(num_buttons).tap do |data_ary|
        @button_texts = []
        num_buttons.times do |idx|
          st, (text, *) = data_ary[idx], button_data[idx]
          st[:buttonid] = idx
          st[:flags] = case idx
                       when escape_key then ::SDL2::SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT
                       when return_key then ::SDL2::SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT
                       else 0
                       end
          st[:text] = @button_texts[idx] =
            ::FFI::MemoryPointer.from_string(text.to_s.encode(Encoding::UTF_8))
        end
      end
    data[:colorScheme] = @color_scheme = colors &&
      ::SDL2::SDL_MessageBoxColorScheme.new.tap do |st|
        # r, g, b, a 形式だった場合にエラーを出さない。
        st[:colors].each.with_index { |c, i| c[:r], c[:g], c[:b] = colors[i] }
      end
    data[:flags] = MessageBoxFlags.to_num(level)
    data[:message] = @message =
      ::FFI::MemoryPointer.from_string(message.to_s.encode(Encoding::UTF_8))
    data[:title] = @title =
      ::FFI::MemoryPointer.from_string(title.to_s.encode(Encoding::UTF_8))
    data[:window] = window
  end
end

Instance Method Details

#to_ptr ⇒ Object 



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# File 'lib/rb_sdl2/message_box.rb', line 49

def to_ptr = @st.to_ptr