Class: SwingController

Inherits:

Object

• Object
• SwingController

show all

Includes:

Observable

Defined in:

lib/ext/projector/projector.rb

Instance Attribute Summary (collapse)

• - (Object) content

  Returns the value of attribute content.

Instance Method Summary (collapse)

• - (SwingController) initialize constructor

  A new instance of SwingController.

• - (Object) motion(event)
• - (Object) press(event)
• - (Object) region(allocation)
• - (Object) release(event)
• - (Object) update

251
252
253
254
255
256
257
258

# File 'lib/ext/projector/projector.rb', line 251

def initialize
  @content = nil
  @drag = false
  @ratio_x = 0.01
  @ratio_y = 0.01
  @start_x = 0
  @start_y = 0
end

249
250
251

# File 'lib/ext/projector/projector.rb', line 249

def content
  @content
end

285
286
287
288
289

# File 'lib/ext/projector/projector.rb', line 285

def motion(event)
  @drag or return self
  swing_to(event.x, event.y)
  self
end

278
279
280
281
282
283

# File 'lib/ext/projector/projector.rb', line 278

def press(event)
  @drag = true
  @start_x, @start_y = event.x, event.y
  content.begin_work
  self
end

272
273
274
275
276

# File 'lib/ext/projector/projector.rb', line 272

def region(allocation)
  @ratio_x = 1.0 / allocation.width.to_f
  @ratio_y = 1.0 / allocation.height.to_f
  self
end

291
292
293
294
295
296

# File 'lib/ext/projector/projector.rb', line 291

def release(event)
  swing_to(event.x, event.y)
  content.commit
  @drag = false
  self
end

266
267
268
269
270

# File 'lib/ext/projector/projector.rb', line 266

def update
  changed
  notify_observers
  self
end