#===========================================================================
# ** Font & Bitmap Expansion [RMVX/RMXP]
#---------------------------------------------------------------------------
#  by Ramiro
#  V 1.0
#--------------------------------------------------------------------------
# Notes:
# may cause lag if you use it too mutch per scene
#--------------------------------------------------------------------------
# Sime tips:
# bug in gradient_fill_rect fixed(VX)
# new methods:
#
# Font
# Font#outline=(boolean), draw outline text (auto font shadow killer in VX for better look)
# Font#outline_color1=(Color) Internal outline color
# Font#outline_color2=(Color)External outline color
#
# Bitmap
#
# Bitmap#gradient_fill_rect(*arguments) #[New in XP]
# Bitmap#gradient_draw_text(*arguments) Take a look in gradient_draw_text method here for more info
#
# NOT FOR COMERTIAL USAGE
#===========================================================================


class Font
  attr_accessor :outline
end

class Bitmap

#--------------------------------------------------------------------------
# Bitmap#draw_text
# for an "outline" look
#--------------------------------------------------------------------------

  alias org_draw_text draw_text if !method_defined?('org_draw_text')

  def draw_text(*args)
    if args[0].is_a?(Rect)
      x = args[0].x
      y = args[0].y
      w = args[0].width
      h = args[0].height
      text = args[1]
      align = args[2] if args[2]
    else
      x = args[0]
      y = args[1]
      w = args[2]
      h = args[3]
      text = args[4]
      align = args[5]   if args[5]
    end
    align = 0 if !align

    if font.outline
      color = font.color.clone
      font.color = Color.new(0,0,0)
      org_draw_text(x-1,y-1,w,h,text,align)
      org_draw_text(x,y-1,w,h,text,align)
      org_draw_text(x-1,y,w,h,text,align)
      org_draw_text(x+1,y+1,w,h,text,align)
      org_draw_text(x-1,y+1,w,h,text,align)
      org_draw_text(x+1,y-1,w,h,text,align)
      org_draw_text(x+1,y,w,h,text,align)
      org_draw_text(x,y+1,w,h,text,align)
      font.color = color.clone\
    end
    org_draw_text(*args)
  end


#--------------------------------------------------------------------------
# Bitmap#Gradient Fill Rect
# Its the same method than RMVX,
# if you need more info take a look at
# the RMVX manual
#--------------------------------------------------------------------------


    def gradient_fill_rect(*args)
      if args[0].is_a?(Rect)
        x  = args[0].x
        y  = args[0].y
        w  = args[0].width
        h  = args[0].height
        c1 = args[1]
        c2 = args[2]
        v  = args[3]
      else
        x  = args[0]
        y  = args[1]
        w  = args[2]
        h  = args[3]
        c1 = args[4]
        c2 = args[5]
        v  = args[6]
      end

      v = false if !v

      color_tones = []

      if v
        for i in 0...h
          r = c1.red   * (h - i) / h + c2.red   * i / h
          g = c1.green * (h - i) / h + c2.green * i / h
          b = c1.blue  * (h - i) / h + c2.blue  * i / h
          a = c1.alpha * (h - i) / h + c2.alpha * i / h
          fill_rect(Rect.new(x,y+i,w,1),Color.new(r,g,b,a))
        end
      else
        for i in 0...w
          r = c1.red   * (w - i) / w + c2.red   * i / w
          g = c1.green * (w - i) / w + c2.green * i / w
          b = c1.blue  * (w - i) / w + c2.blue  * i / w
          a = c1.alpha * (w - i) / w + c2.alpha * i / w
          fill_rect(Rect.new(x+i,y,1,h),Color.new(r,g,b,a))
        end
      end

    end


  #--------------------------------------------------------------------------
  # Bitmap#gradient_draw_text
  #
  # Arguments:
  #
  # Rect,name,color1,color2,align,vertical
  # x,y,width.height,text,color1,color2,align,vertical
  # Rect, x, y, width,height, text y align wors exactly equal as the draw_text_method
  #
  # New Arguments:
  # color1 = Initial gradient color
  # color2 = End gradient color
  # vertical: put it true if you want the gradient vertical
  #
  # - Default arguments:
  #
  # align = 0
  # vertical = false
  #
  #--------------------------------------------------------------------------
  # ¡Atentio!
  #
  # If you want to use this please read about draw_text method
  #--------------------------------------------------------------------------

  def gradient_draw_text(*args)
    if args[0].is_a?(Rect)
      x = args[0].x
      y = args[0].y
      w = args[0].width
      h = args[0].height
      text = args[1]
      color1 = args[2]
      color2 = args[3]
      align = args[4] if args[4]
      vertical = args[5] if args[5]
    else
      x = args[0]
      y = args[1]
      w = args[2]
      h = args[3]
      text = args[4]
      color1 = args[5]
      color2 = args[6]
      align = args[7]   if args[7]
      vertical = args[8] if args[8]
    end
    align = 0 if !align
    vertical = false if !vertical
    text_bmp = Bitmap.new(w,h)
    text_bmp.font.name = font.name
    text_bmp.font.size = font.size
    text_bmp.font.shadow = false  if text_bmp.font.respond_to?("shadow")
    text_bmp.font.outline = false if text_bmp.font.respond_to?("outline")
    text_bmp.font.border = false  if text_bmp.font.respond_to?("border")
    text_bmp.font.bold = font.bold
    text_bmp.font.italic = font.italic
    text_bmp.draw_text(0,0,w,h,text,align)
    gradient_bmp = Bitmap.new(w,h)
    gradient_bmp.gradient_fill_rect(0, 0, w, h, color1, color2, vertical)
    for x2 in 0...w
      for y2 in 0...h
        alpha_txt = text_bmp.get_pixel(x2,y2).alpha
        if alpha_txt > 0
          c = gradient_bmp.get_pixel(x2,y2)
          c.alpha = alpha_txt
          text_bmp.set_pixel(x2,y2,c)
        end
      end
    end
    draw_text(x,y,w,h,text,align)
    blt(x,y,text_bmp,Rect.new(0,0,w,h))
  end
end