Class: SobyPlayer

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

Constant Summary collapse

TRANSITION_DURATION = 
1000

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(w, h) ⇒ SobyPlayer

Returns a new instance of SobyPlayer.



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# File 'lib/soby.rb', line 36

def initialize(w, h)
  @w = w
  @h = h
  super()
end

Instance Attribute Details

#cam ⇒ Object

attr_accessor :background_max_color, :background_min_color, :background_constrain



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# File 'lib/soby.rb', line 29

def cam
  @cam
end

#current_slide_no ⇒ Object (readonly)

Returns the value of attribute current_slide_no.



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# File 'lib/soby.rb', line 26

def current_slide_no
  @current_slide_no
end

#is_moving ⇒ Object (readonly)

Returns the value of attribute is_moving.



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# File 'lib/soby.rb', line 26

def is_moving
  @is_moving
end

#next_cam ⇒ Object

Returns the value of attribute next_cam.



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# File 'lib/soby.rb', line 25

def next_cam
  @next_cam
end

#prev_cam ⇒ Object

Returns the value of attribute prev_cam.



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# File 'lib/soby.rb', line 25

def prev_cam
  @prev_cam
end

#prez ⇒ Object

Returns the value of attribute prez.



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# File 'lib/soby.rb', line 25

def prez
  @prez
end

#slides ⇒ Object

Returns the value of attribute slides.



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# File 'lib/soby.rb', line 25

def slides
  @slides
end

Instance Method Details

#compute_view(view, slide_number) ⇒ Object 



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# File 'lib/soby.rb', line 229

def compute_view(view, slide_number)
  #    view = createGraphics(@width, @height, P3D)
  #    @next_view = createGraphics(@width, @height)
  view.beginDraw

  cam = slide_view slide_number
  view.g.modelview.apply(cam)
  view.shapeMode(CORNER)
  view.shape(@prez.pshape, 0, 0)
  view.endDraw

  view 
end

#custom_post_draw ⇒ Object 



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# File 'lib/soby.rb', line 100

def custom_post_draw

end

#custom_pre_draw ⇒ Object 



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

def custom_pre_draw
  background(255)
end

#custom_setup ⇒ Object

To be overriden by the Presentation Code.



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

def custom_setup

end

#display_slide_number ⇒ Object Also known as: default_display_slide_number 



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# File 'lib/soby.rb', line 148

def display_slide_number 
  # Slide number
  push_matrix
  translate(@width - 40, @height - 45)
  fill(30)
  strokeWeight(3)
  stroke(190)
  ellipseMode(CENTER)
  ellipse(18, 22, 35, 35)
  fill(255)
  noStroke 
  textSize(20)
  text(@current_slide_no.to_s, 10, 30)
  pop_matrix
end

#draw ⇒ Object 



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# File 'lib/soby.rb', line 105

def draw 

  if not @custom_setup_done 
    custom_setup
    @custom_setup_done = true
  end

  custom_pre_draw

  smooth(8)

  shapeMode(CORNER)
  imageMode(CORNER)

  if(running?)
    
    push_matrix

    update_cam
    self.g.modelview.apply(@cam)
    @prez.draw
    @prez.display_videos
    pop_matrix

    run_slide_code 
    display_slide_number 
  end

  custom_post_draw
end

#global_view ⇒ Object 



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# File 'lib/soby.rb', line 389

def global_view 
  # ortho(left, right, bottom, top)
  # frustum(left, right, bottom, top, near, far)
  
  my_scale = find_scale

  # centering
  dx = ((@width / my_scale) - @prez.width) * 0.5
  dy = ((@height / my_scale) - @prez.height) * 0.5

  cam = Cam.new 
  cam.scale = my_scale
  # Not necessary : display from the center...
  cam.post_translation.set(dx, dy)
  cam.compute_mat
  cam
end

#goto_slide(next_slide) ⇒ Object 



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# File 'lib/soby.rb', line 283

def goto_slide (next_slide)

  current_slide = @current_slide_no 

  use_global_view =  next_slide == 0 || next_slide > @prez.slides.size 

  cam = global_view if use_global_view
  cam = slide_view(next_slide)  if next_slide > 0   

  # previous next is now old. 
  @prev_cam = @next_cam
  @prev_cam.mat.set(@cam)
  @next_cam = cam

  @current_slide_no = next_slide

  if use_global_view
    @transition_duration = TRANSITION_DURATION.to_f
  else
    @transition_duration = @slides[@current_slide_no].transition_duration_ms
  end

  @transition_start_time = millis
  @is_moving = true  
  @current_ratio = 0

  ## trigger the slide_change function (user defined)
  slide_change
end

#init ⇒ Object

no Border



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# File 'lib/soby.rb', line 43

def init 
  super
  removeFrameBorder
end

#init_cameras ⇒ Object 



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# File 'lib/soby.rb', line 79

def init_cameras
  # current camera matrix 
  @cam = PMatrix3D.new

  # Cameras for movement. 
  @prev_cam = Cam.new
  @next_cam = Cam.new
  @is_moving = false
  @current_ratio = 0
end

#init_player ⇒ Object 



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# File 'lib/soby.rb', line 72

def init_player 
  @prez = nil
  @current_slide_no = 0
  @is_running = false
  init_cameras
end

#key_pressed ⇒ Object 



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# File 'lib/soby.rb', line 167

def key_pressed

  if key == 'g' 
    puts "Garbage"
    Java::JavaLang::System.gc 
  end 

  return if @prez == nil

  if keyCode == LEFT 
    prev_slide
  end

  if keyCode == RIGHT
    next_slide
  end
  
  #    puts "slide #{@current_slide_no} "
end

#mouse_dragged ⇒ Object 



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# File 'lib/soby.rb', line 187

def mouse_dragged
  if not @is_moving 
    tr = PMatrix3D.new 
    tr.translate(mouse_x - pmouse_x, mouse_y - pmouse_y)
    
    @cam.preApply(tr)
    @next_cam.mat.preApply(tr)
  end
end

#mouseWheel(event) ⇒ Object 



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# File 'lib/soby.rb', line 197

def mouseWheel(event) 
  e = event.getAmount()
  if not @is_moving 
    tr = PMatrix3D.new 
    tr.translate(mouse_x, mouse_y) 
    tr.scale(e < 0 ?  1.05 :  1 / 1.05)
    tr.translate(-mouse_x, -mouse_y) 
    @cam.preApply(tr)
  end
end

#next_slide ⇒ Object 



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# File 'lib/soby.rb', line 244

def next_slide
  is_last_slide = @current_slide_no >= @prez.nb_slides 
  is_slide_zero = current_slide_no == 0

  # Gloal view
  if is_slide_zero
    goto_slide(@current_slide_no + 1)
    return 
  end

  # animation
  if @slides[@current_slide_no].has_next_animation?
    puts "Animation Next " 
    anim = @slides[@current_slide_no].next_animation
    anim.pshape_elem.setVisible(true)
  else
    goto_slide(@current_slide_no + 1) unless is_last_slide
  end

end

#prev_slide ⇒ Object 



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# File 'lib/soby.rb', line 265

def prev_slide
  return if @current_slide_no <= 0

  if current_slide_no == 0 
    goto_slide(@current_slide_no - 1) 
    return 
  end

  if @slides[@current_slide_no].has_previous_animation?
    puts "Animation Previous " 
    anim = @slides[@current_slide_no].previous_animation
    anim.pshape_elem.setVisible(false)
  else
    goto_slide(@current_slide_no - 1)   
  end

end

#ready? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/soby.rb', line 68

def ready?
  @ready
end

#removeFrameBorder ⇒ Object 



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# File 'lib/soby.rb', line 48

def removeFrameBorder
  frame.removeNotify
  frame.setUndecorated true
  frame.addNotify
end

#run_slide_code ⇒ Object 



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# File 'lib/soby.rb', line 136

def run_slide_code 
  translate 0, 0, 1
  if not @is_moving and @current_slide_no != 0
    desc = @prez.slides[@current_slide_no].description
    if(desc != nil)
      #          puts "EVAL #{desc}" 
      eval desc
    end 
  end
end

#running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/soby.rb', line 32

def running? () @is_running  end

#set_prez(prez) ⇒ Object 



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# File 'lib/soby.rb', line 209

def set_prez (prez)

  current_slide = @current_slide_no
  
  #    PShape.loadedImages.clear 
  @prez = prez
  @slides = prez.slides

  goto_slide current_slide

  @is_running = true
  @prez_middle = PVector.new(@prez.width / 2.0, @prez.height / 2.0)

  puts "Presentation size " 
  puts @prez.width
  puts @prez.height

  @custom_setup_done = false
end

#setup ⇒ Object 



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# File 'lib/soby.rb', line 55

def setup 
  @ready = false
  size @w, @h, OPENGL

## Some bugs with this. 
## frame.setResizable true  if frame != nil 

  init_player

  @custom_setup_done = true
  @ready = true
end

#slide_change ⇒ Object 



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# File 'lib/soby.rb', line 313

def slide_change

end

#slide_view(slide_no) ⇒ Object 



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# File 'lib/soby.rb', line 342

def slide_view (slide_no)

  if slide_no > @prez.slides.size 
    puts "No more slides" 
    return
  end

  return if @prez.slides[slide_no] == nil 

  puts "slide view..." << slide_no.to_s

  # check slide number
  w = @prez.slides[slide_no].width
  h = @prez.slides[slide_no].height
  x = @prez.slides[slide_no].x
  y = @prez.slides[slide_no].y

  sc1 = @width.to_f / w.to_f
  sc2 = @height.to_f / h.to_f

  # scale 
  sc = [sc1, sc2].min


  # translate 
  dx = ((@width / sc) - w) * 0.5
  dy = ((@height / sc) - h) * 0.5

  cam = Cam.new

  m = PMatrix3D.new 
  m.apply @prez.slides[slide_no].matrix
  m.invert

  # Scale
  tr = PMatrix3D.new 
  tr.scale(sc)
  m.preApply(tr)
  m.translate(dx, dy)

  # center
  cam.mat = m
  cam

end

#update_cam ⇒ Object 



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# File 'lib/soby.rb', line 318

def update_cam 

  return unless @is_moving
  return if @slides.size == 0

  elapsed_time = millis - @transition_start_time
  @current_ratio = elapsed_time.to_f / @transition_duration.to_f

  @current_ratio = @slides[@current_slide_no].transition @current_ratio unless @current_slide_no == 0

  if @current_ratio > 1  && @is_moving 
    @is_moving = false
    @cam = @prev_cam.lerp(@next_cam, 1)

    # save a copy 
    @prev_cam.mat = @cam.get
    return
  end

  #    puts @current_ratio
  @cam = @prev_cam.lerp(@next_cam, @current_ratio)

end