Class: Slide

Inherits:
Object
  • Object
show all
Defined in:
lib/soby/slide.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(element) ⇒ Slide

Returns a new instance of Slide.



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# File 'lib/soby/slide.rb', line 11

def initialize (element)

  attr = element.attributes

  ## Zoom & Path -> not used...
  # @transition_path_hide = attr["transition-path-hide"].value
  # @transition_zoom_percent = attr["transition-zoom-percent"].value

  #Not always set ! We use the title instead
  #    @id = attr["id"].value

  @transition_profile = attr["transition-profile"].value
  @transition_duration_ms = attr["transition-duration-ms"].value.to_f
  @timeout_ms = attr["timeout-ms"].value.to_f
  @timeout_enable = attr["timeout-enable"].value  == "true"
  #    @show_in_frame_list = attr["show-in-frame-list"].value

  @clip = attr["clip"].value
  @hide = attr["hide"].value == "true"
  @sequence = attr["sequence"].value.to_i
  @title = attr["title"].value
  @refid = attr["refid"].value

  init_transition_profile

  @videos = []
  @animations = []
  @current_animation = 0
end

Instance Attribute Details

#animations ⇒ Object (readonly)

Returns the value of attribute animations.



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# File 'lib/soby/slide.rb', line 8

def animations
  @animations
end

#description ⇒ Object

Returns the value of attribute description.



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# File 'lib/soby/slide.rb', line 3

def description
  @description
end

#height ⇒ Object (readonly)

Returns the value of attribute height.



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# File 'lib/soby/slide.rb', line 4

def height
  @height
end

#hide ⇒ Object

Returns the value of attribute hide.



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# File 'lib/soby/slide.rb', line 3

def hide
  @hide
end

#id ⇒ Object (readonly)

Returns the value of attribute id.



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# File 'lib/soby/slide.rb', line 4

def id
  @id
end

#matrix ⇒ Object

Returns the value of attribute matrix.



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# File 'lib/soby/slide.rb', line 3

def matrix
  @matrix
end

#next ⇒ Object

Returns the value of attribute next.



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# File 'lib/soby/slide.rb', line 3

def next
  @next
end

#previous ⇒ Object

Returns the value of attribute previous.



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# File 'lib/soby/slide.rb', line 3

def previous
  @previous
end

#refid ⇒ Object

Returns the value of attribute refid.



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# File 'lib/soby/slide.rb', line 3

def refid
  @refid
end

#sequence ⇒ Object

Returns the value of attribute sequence.



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# File 'lib/soby/slide.rb', line 3

def sequence
  @sequence
end

#timeout_enable ⇒ Object (readonly)

transition states



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# File 'lib/soby/slide.rb', line 7

def timeout_enable
  @timeout_enable
end

#timeout_ms ⇒ Object (readonly)

transition states



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# File 'lib/soby/slide.rb', line 7

def timeout_ms
  @timeout_ms
end

#title ⇒ Object (readonly)

Returns the value of attribute title.



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# File 'lib/soby/slide.rb', line 4

def title
  @title
end

#transform ⇒ Object (readonly)

Returns the value of attribute transform.



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# File 'lib/soby/slide.rb', line 4

def transform
  @transform
end

#transition_duration_ms ⇒ Object (readonly)

transition states



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# File 'lib/soby/slide.rb', line 7

def transition_duration_ms
  @transition_duration_ms
end

#transition_profile ⇒ Object (readonly)

transition states



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# File 'lib/soby/slide.rb', line 7

def transition_profile
  @transition_profile
end

#videos ⇒ Object (readonly)

Returns the value of attribute videos.



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# File 'lib/soby/slide.rb', line 8

def videos
  @videos
end

#width ⇒ Object (readonly)

Returns the value of attribute width.



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# File 'lib/soby/slide.rb', line 4

def width
  @width
end

#x ⇒ Object (readonly)

Returns the value of attribute x.



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# File 'lib/soby/slide.rb', line 4

def x
  @x
end

#y ⇒ Object (readonly)

Returns the value of attribute y.



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# File 'lib/soby/slide.rb', line 4

def y
  @y
end

Instance Method Details

#add_animation(id, animation) ⇒ Object 



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# File 'lib/soby/slide.rb', line 92

def add_animation (id, animation) 
  @animations[id] = animation
end

#add_video(video) ⇒ Object 



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# File 'lib/soby/slide.rb', line 83

def add_video (video)
  @videos << video
end

#has_next_animation? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/soby/slide.rb', line 96

def has_next_animation?() 
  return false if @animations.size == 0 
  return @current_animation < @animations.size
end

#has_previous_animation? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/soby/slide.rb', line 106

def has_previous_animation?() 
  return false if @animations.size == 0 
  return @current_animation > 0
end

#has_videos? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/soby/slide.rb', line 87

def has_videos?() 
  @videos.size() != 0 
end

#init_transition_profile ⇒ Object 



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# File 'lib/soby/slide.rb', line 46

def init_transition_profile
  case @transition_profile
  when "linear" 
    @transition = Proc.new { |x| x } 
  when "accelerate" 
    @transition = Proc.new { |x| x**3 } 
  when "strong-accelerate"
    @transition = Proc.new { |x| x**5 } 
  when "decelerate" 
    @transition = Proc.new { |x| 1 - ((1 - x) ** 3) } 
  when "strong-decelerate" 
    @transition = Proc.new { |x| 1 - ((1 - x) ** 5) } 
  when "accelerate-decelerate" 
    @transition = Proc.new { |x|   
      xs = x <= 0.5 ? x : 1 - x
      y = ((2 * xs) ** 3) / 2
      x <= 0.5 ? y : 1 - y
    }
  when "strong-decelerate-accelerate"
    @transition = Proc.new { |x| 
      xs = x <= 0.5 ? x : 1 - x
      y = ((2 * xs) **  5) / 2
      x <= 0.5 ? y : 1 - y 
    }
  when  "immediate-beginning"
    @transition = Proc.new { |x| 1 }
  when  "immediate-end"
    @transition = Proc.new { |x| x === 1 ? 1 : 0}
  when "immediate-middle" 
    @transition = Proc.new { |x| x >= 0.5 ? 1 : 0}
    
  else 
    @transition = Proc.new {|x| x }
  end
end

#is_hidden? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/soby/slide.rb', line 41

def is_hidden?
   @hide
end

#next_animation ⇒ Object 



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# File 'lib/soby/slide.rb', line 101

def next_animation 
  @current_animation = @current_animation + 1
  @animations[@current_animation - 1]
end

#previous_animation ⇒ Object 



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# File 'lib/soby/slide.rb', line 111

def previous_animation 
  @current_animation = @current_animation - 1
  @animations[@current_animation]
end

#set_geometry(element, matrix) ⇒ Object 



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# File 'lib/soby/slide.rb', line 117

def set_geometry (element, matrix)

  @matrix = matrix
  attr = element.attributes

  #    @label = attr["label"].value
  #    @id = attr["id"].value
  @x = attr["x"].value.to_f
  @y = attr["y"].value.to_f
  @width = attr["width"].value.to_f
  @height = attr["height"].value.to_f
  
  @description = element.css("desc").text if element.css("desc").size > 0
  @title = element.css("title").text if element.css("title").size > 0

  ## TODO : check if title != animation and video 

  # Animation & Video are not ruby Code !
  if @title != nil 
    if  @title.match(/animation/) or @title.match(/video/) 
      @description = nil
    end
  end
  
  #eval @description if @description
end

#to_s ⇒ Object 



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# File 'lib/soby/slide.rb', line 149

def to_s 
  ["id ",@id.to_s ," ",
   "transition_path_hide ",@transition_path_hide.to_s ," ",
   "transition_profile ",@transition_profile.to_s ," ",
   "transition_zoom_percent ",@transition_zoom_percent.to_s ," ",
   "transition_duration_ms ",@transition_duration_ms.to_s ," ",
   "timeout_ms ",@timeout_ms.to_s ," ",
   "timeout_enable ",@timeout_enable.to_s ," ",
   "show_in_frame_list ",@show_in_frame_list.to_s ," ",
   "clip ",@clip.to_s ," ",
   "hide ",@hide.to_s ," ",
   "sequence ",@sequence.to_s ," ",
   "title ",@title.to_s ," ",
   "refid ",@refid.to_s ," " ].join
end

#transition(x) ⇒ Object 



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# File 'lib/soby/slide.rb', line 144

def transition x 
  @transition.call x 
end