RPGXP - ENG - Warning message

#==============================================================================
# Warning message
# By gerkrt/gerrtunk
# Version: 1
# License: GPL, credits
#==============================================================================
=begin

Features:

I created this script long ago for one of my menus and any other project. Its very flexible
and can be used for a lot of things. It uses a modified window+sprite combination
because i think that it looks better, anyway you can modify it or do what you want.

-The window size and position is based on the text size.
-All other sizes or positions are set automatically.
-It have methods for automatically visible/invisible, dipose,etc, all sprites
and windows.
-You can add a question to it. With this a modified version of a window command
is actived.
-You can changue the text, ask option, x and y in every call.

I use it with a variable in the Scene called "Warning_message_type" that defines
the behavior of it.

=end

class Warning_Message
  def initialize
    # Default values when refreshing it
    @default_x = 200
    @default_y = 200
    # Back text window
    @text_window = Window_Base.new(120, 136, 400, 64)
    @text_window.z = 252
    @text_window.visible = false
    # Text sprite
    @text_sprite = Sprite.new
    @text_sprite.z = 254
    @text_sprite.x = 120
    @text_sprite.y = 136
    @text_sprite.bitmap = Bitmap.new(400,64)
    # Testing bitmap for size test
    @testing_bitmap =  Bitmap.new(1,1)
    # Question window
    @question_window = Window_Selection.new(80, ["Yes", "No"])
    @question_window.x = 280
    @question_window.y = 200
    @question_window.z = 253
    @question_window.back_opacity = 0
    @question_window.opacity = 0
    @question_window.active = false
    @question_window.visible = false
    # Back question window
    @back_question_window = Window_Base.new(120, 136, 64, 64)
    @back_question_window.x = 280
    @back_question_window.y = 200
    @back_question_window.z = 254
    @back_question_window.visible = false

  end

  # Make all the sprites/windows visibles
  def visible
    @text_window.visible = true
    @text_sprite.visible = true
    # Question ones only if active
    if @back_question_window.active
      @question_window.visible = true
      @back_question_window.visible = true
    end
  end

  # Make all the sprites/windows invisibles
  def no_visible
    @text_window.visible = false
    @text_sprite.visible = false
    @question_window.visible = false
    @back_question_window.visible = false
  end

  # Is question window active?
  def active
    return @question_window.active
  end

  # Set question window active
  def active=(value)
    @question_window.active = value
  end

  # Update all the sprites/windows visibles
  def update
    @text_window.update
    @text_sprite.update
    @back_question_window.update
    @question_window.update
  end

  # Draw the warning message
  # question: called to add a yes/no window.
  def refresh(message, question=true, x=@default_x, y=@default_y)
    # Basic position settings
    @text_window.y = y
    @text_window.x = x
    @text_sprite.x = x
    @text_sprite.y = y
    rect = @testing_bitmap.text_size(message)
    # With question window or not. All the positions auto-setting are done here.
    if question
      @text_window.width = rect.width+26+40
      @question_window.visible = true
      @question_window.active = true
      @back_question_window.visible = true
      @question_window.x = @text_window.x+rect.width+4+6
      @question_window.y = @text_window.y - 16
      @back_question_window.x = @text_window.x+rect.width+4+16
      @back_question_window.y = @text_window.y
    else
      @text_window.width = rect.width+26
    end
    # First update the back window
    @text_window.update
    @text_sprite.bitmap.clear
    # Draw text
    @text_sprite.bitmap.draw_text(0+10,0,400,64,message, 0)
    @text_sprite.update
  end

  # Dispose all the sprites/windows visibles
  def dispose
    @text_window.dispose
    @text_sprite.dispose
    @question_window.dispose
    @back_question_window.dispose
  end
end


class Window_Selection < Window_Command
   #--------------------------------------------------------------------------
  # * Update Cursor Rectangle
  #--------------------------------------------------------------------------
  def update_cursor_rect
    # If cursor position is less than 0
    if @index < 0
      self.cursor_rect.empty
      return
    end
    # Get current row
    row = @index / @column_max
    # If current row is before top row
    if row < self.top_row
      # Scroll so that current row becomes top row
      self.top_row = row
    end
    # If current row is more to back than back row
    if row > self.top_row + (self.page_row_max - 1)
      # Scroll so that current row becomes back row
      self.top_row = row - (self.page_row_max - 1)
    end
    # Calculate cursor width
    cursor_width = (self.width / @column_max - 32)+11
    # Calculate cursor coordinates
    x = @index % @column_max * (cursor_width + 32)
    y = @index / @column_max * 32 - self.oy
    # Update cursor rectangle
    self.cursor_rect.set(x-4, y, cursor_width, 32)
  end

end