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

Instance Attribute Details

#cam ⇒ Object

attr_accessor :background_max_color, :background_min_color, :background_constrain



26
27
28
 
# File 'lib/soby.rb', line 26

def cam
  @cam
end

#current_slide_no ⇒ Object (readonly)

Returns the value of attribute current_slide_no.



23
24
25
 
# File 'lib/soby.rb', line 23

def current_slide_no
  @current_slide_no
end

#is_moving ⇒ Object (readonly)

Returns the value of attribute is_moving.



23
24
25
 
# File 'lib/soby.rb', line 23

def is_moving
  @is_moving
end

#next_cam ⇒ Object

Returns the value of attribute next_cam.



22
23
24
 
# File 'lib/soby.rb', line 22

def next_cam
  @next_cam
end

#prev_cam ⇒ Object

Returns the value of attribute prev_cam.



22
23
24
 
# File 'lib/soby.rb', line 22

def prev_cam
  @prev_cam
end

#prez ⇒ Object

Returns the value of attribute prez.



22
23
24
 
# File 'lib/soby.rb', line 22

def prez
  @prez
end

#slides ⇒ Object

Returns the value of attribute slides.



22
23
24
 
# File 'lib/soby.rb', line 22

def slides
  @slides
end

Instance Method Details

#compute_view(view, slide_number) ⇒ Object 



215
216
217
218
219
220
221
222
223
224
225
226
227
 
# File 'lib/soby.rb', line 215

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 



91
92
93
 
# File 'lib/soby.rb', line 91

def custom_post_draw

end

#custom_pre_draw ⇒ Object 



87
88
89
 
# File 'lib/soby.rb', line 87

def custom_pre_draw
  background(255)
end

#custom_setup ⇒ Object

To be overriden by the Presentation Code.



83
84
85
 
# File 'lib/soby.rb', line 83

def custom_setup

end

#display_slide_number ⇒ Object Also known as: default_display_slide_number 



139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
 
# File 'lib/soby.rb', line 139

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 



96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
 
# File 'lib/soby.rb', line 96

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 



375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
 
# File 'lib/soby.rb', line 375

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 



269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
 
# File 'lib/soby.rb', line 269

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



34
35
36
37
 
# File 'lib/soby.rb', line 34

def init 
  super
  removeFrameBorder
end

#init_cameras ⇒ Object 



70
71
72
73
74
75
76
77
78
79
 
# File 'lib/soby.rb', line 70

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 



63
64
65
66
67
68
 
# File 'lib/soby.rb', line 63

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

#key_pressed ⇒ Object 



158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
 
# File 'lib/soby.rb', line 158

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 



178
179
180
181
182
183
184
185
186
 
# File 'lib/soby.rb', line 178

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 



188
189
190
191
192
193
194
195
196
197
 
# File 'lib/soby.rb', line 188

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 



230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
 
# File 'lib/soby.rb', line 230

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 



251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
 
# File 'lib/soby.rb', line 251

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) 


59
60
61
 
# File 'lib/soby.rb', line 59

def ready?
  @ready
end

#removeFrameBorder ⇒ Object 



39
40
41
42
43
 
# File 'lib/soby.rb', line 39

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

#run_slide_code ⇒ Object 



127
128
129
130
131
132
133
134
135
136
 
# File 'lib/soby.rb', line 127

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) 


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

def running? () @is_running  end

#set_prez(prez) ⇒ Object 



200
201
202
203
204
205
206
207
208
209
210
211
212
213
 
# File 'lib/soby.rb', line 200

def set_prez (prez)
  #    PShape.loadedImages.clear 
  @prez = prez
  @slides = prez.slides
  goto_slide 0
  @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 



46
47
48
49
50
51
52
53
54
55
56
57
 
# File 'lib/soby.rb', line 46

def setup 
  @ready = false
  size 1024, 768, OPENGL

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

  init_player

  @custom_setup_done = true
  @ready = true
end

#slide_change ⇒ Object 



299
300
301
 
# File 'lib/soby.rb', line 299

def slide_change

end

#slide_view(slide_no) ⇒ Object 



328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
 
# File 'lib/soby.rb', line 328

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 



304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
 
# File 'lib/soby.rb', line 304

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