#==============================================================================

# ** Button - This class is used to create buttons.

#------------------------------------------------------------------------------

# Author    Trebor777

# Version   2.0

#------------------------------------------------------------------------------

# * Refatorado e Modificado por Paulo Soreto

#==============================================================================

class Button < Widget

  #--------------------------------------------------------------------------

  # * Object Initialization

  #--------------------------------------------------------------------------

  def initialize(win, x, y, text, &block)

    super(win, x, y)

    @btnRect = nil

    @text = text

    @block = block

    @image = nil

    @back = RPG::Cache.picture('btn')

    @select = RPG::Cache.picture('btn_hover')

    @off = false

    @sstate = false

    setup_rect

    refresh

  end

  #--------------------------------------------------------------------------

  # Get button rect

  #--------------------------------------------------------------------------

  def setup_rect

    temp = Bitmap.new(1, 1)

    temp.font.size = 16

    temp.font.color = Color.new(255, 255, 255)

    tx = temp.text_size(@text)

    s.bitmap = Bitmap.new(tx.width + 20, 20)

    s.bitmap.font.size = 14

    s.bitmap.font.color = Color.new(255, 255,255)

  end

  #--------------------------------------------------------------------------

  # Draw the button text, and create the mask.

  #--------------------------------------------------------------------------

  def refresh

    s.bitmap.clear

    @sstate ? @image = @select : @image =@back

    s.bitmap.blt(0, 0, @image, Rect.new(0, 0,5, 20))

    s.bitmap.stretch_blt(Rect.new(5, 0, s.bitmap.width - 5, 20), @image, Rect.new(5,0, 5, 20))

    s.bitmap.blt(s.bitmap.width - 5, 0,@image, Rect.new(10, 0, 5, 20))

    draw_text

  end

  def draw_text

    s.bitmap.font.color = Color.new(0, 0, 0)

    s.bitmap.draw_text(1, 1, s.bitmap.width,20, @text, 1)

    s.bitmap.font.color = Color.new(255, 255,255)

    s.bitmap.draw_text(0, 0, s.bitmap.width,20, @text, 1)

  end

  #--------------------------------------------------------------------------

  # Dispose the mask, and itself

  #--------------------------------------------------------------------------

  def hide; s.visible = false; end

  def show; s.visible = true; end

  #--------------------------------------------------------------------------

  # Update opacity on click

  #--------------------------------------------------------------------------

  def update

    if @off && !Input.pressed?(Input::Mouse_Left)

      @off = false

      s.opacity = 255

    end

    super

  end

  #--------------------------------------------------------------------------

  # Change the button opacity when clicked

  #--------------------------------------------------------------------------

  def clicked

    s.opacity = 160

    @block.call unless @block.nil?

    @off = true

  end

  #--------------------------------------------------------------------------

  # Visible

  #--------------------------------------------------------------------------

  def visible=(v)

    s.visible = v if s != nil

  end

  def text=(v)

    @text = v

    refresh

  end

  def opacity=(v)

    s.opacity = v

    refresh

  end

  def select=(v)

    @sstate = v

    refresh

  end

  def select; @sstate; end

end