Class: UIView

Inherits:
Object show all
Includes:
SugarCube::Frameable
Defined in:
lib/ios/sugarcube-gestures/gestures.rb,
lib/ios/sugarcube-ui/uiview.rb,
lib/ios/sugarcube-to_s/uiview.rb,
lib/ios/sugarcube-pipes/pipes.rb,
lib/ios/sugarcube-ui/frameable.rb,
lib/osx/sugarcube-animations/nsview.rb,
lib/ios/sugarcube-animations/uiview.rb

Overview

BubbleWrap has these same methods, but the logic and options are a little different. In the spirit of open source, I am blatantly copying their code, changing it to suit my needs, and offering it here

Class Method Summary collapse

Instance Method Summary collapse

Methods included from SugarCube::Frameable

#height, #setHeight, #setWidth, #setX, #setY, #width, #x, #y

Class Method Details

.animate(options = {}, more_options = {}, &animations) ⇒ Object

If options is a Numeric, it is used as the duration. Otherwise, duration is an option, and defaults to 0.3. All the transition methods work this way.

Parameters:

  • options (Hash) (defaults to: {})

    a customizable set of options

Options Hash (options):

  • :duration (Float)

    Animation duration. default: 0.3

  • :delay (Float)

    Delay before animations begin. default: 0

  • :damping (Float)

    Enables the "spring" animation. Value of 1.0 is a stiff spring.

  • :velocity (Float)

    Used in a spring animation to set the initial velocity

  • :after (Proc)

    A block that is executed when the animation is complete, useful for chaining (though the animation_chain method is better!)

  • :options (Fixnum, Symbol)

    The options parameter that is passed to the UIView.animateWithDuration(...) method. You can also use the more intuitive options :curve, :from_current, and :allow_interaction. uianimationcurve symbols (e.g. :ease_in_out) are converted to Fixnum.

  • :curve (Fixnum, Symbol)

    The animation curve option. uianimationcurve symbols (e.g. :ease_in_out) are converted to Fixnum. default: UIViewAnimationOptionCurveEaseInOut

  • :from_current (Boolean)

    Whether or not to have animations start from their current position. default: true (aka UIViewAnimationOptionBeginFromCurrentState)

  • :allow_interaction (Boolean)

    default: false (aka UIViewAnimationOptionAllowUserInteraction)



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 34

def animate(options={}, more_options={}, &animations)
  raise "animation block is required" unless animations

  if options.is_a? Numeric
    duration = options
    options = more_options
  else
    duration = options[:duration] || 0.3
  end

  delay = options[:delay] || 0

  after_animations = options[:after]

  animation_options = sugarcube_animation_options(options)
  if duration == 0 && delay == 0
    animations.call
    after_adjusted.call(true) if after_adjusted
  else
    NSAnimationContext.runAnimationGroup(-> (context) do
      context.duration = duration
      animations.call
    end, completionHandler: after_animations)
  end
end

.animation_chain(options = {}, &first) ⇒ Object

Animation chains are great for consecutive animation blocks. Each chain can take the same options that UIView##animate take.



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 101

def animation_chain(options={}, &first)
  chain = SugarCube::AnimationChain.new
  if first
    chain.and_then(options, &first)
  end
  return chain
end

.attr_updates(*attrs) ⇒ Object



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 10

def attr_updates(*attrs)
  attr_accessor(*attrs)
  attrs.each do |attr|
    define_method("#{attr}=") do |value|
      if instance_variable_get("@#{attr}") != value
        setNeedsDisplay
      end
      willChangeValueForKey(attr)
      instance_variable_set("@#{attr}", value)
      didChangeValueForKey(attr)
    end
  end
end

.first_responderObject

returns the first responder, starting at the Window and searching every subview



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 6

def first_responder
  UIApplication.sharedApplication.keyWindow.first_responder
end

.sugarcube_animation_options(options) ⇒ Object

This is an internal helper method to determine the animation options.



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# File 'lib/osx/sugarcube-animations/nsview.rb', line 6

def sugarcube_animation_options(options)
  {}
end

Instance Method Details

#<<(view) ⇒ Object

superview << view => superview.addSubview(view)



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 28

def <<(view)
  self.addSubview(view)
  return self
end

#animate(options = {}, more_options = {}, &animations) ⇒ Object

Same as UIView##animate, but acts on self



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 122

def animate(options={}, more_options={}, &animations)
  if options.is_a? Numeric
    options = more_options.merge(duration: options)
  end

  self.wantsLayer = true
  if self.layerContentsRedrawPolicy == NSViewLayerContentsRedrawDuringViewResize
    self.layerContentsRedrawPolicy = NSViewLayerContentsRedrawOnSetNeedsDisplay
  end

  UIView.animate(options, &animations)
  return self
end

#animate_constraints(options = {}, &animations) ⇒ Object

Just calls layoutIfNeeded before and after constraints are applied



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 132

def animate_constraints(options={}, &animations)
  self.layoutIfNeeded
  animations.call
  UIView.animate(options) do
    self.layoutIfNeeded
  end
end

#back_fiend!(options = {}, &after) ⇒ Object

Moves the view backwards, similar to what Google has been doing a lot recently



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 540

def back_fiend!(options={}, &after)
  scale = options[:scale] || 0.5
  perspective = options[:perspective] || -0.0005
  size = options[:size] || -140

  options[:duration] ||= 200.millisecs
  options[:curve] ||= UIViewAnimationOptionCurveLinear

  UIView.animation_chain(options) do
    self.layer.transform = CATransform3DTranslate(CATransform3DScale(CATransform3D.new(1,0,0,0, 0,1,0,perspective, 0,0,1,0, 0,0,0,1), scale, scale, scale), 0, size, 0)
  end.and_then(duration:300.millisecs, options:UIViewAnimationOptionCurveLinear) do
    self.layer.transform = CATransform3DTranslate(CATransform3DScale(CATransform3DIdentity, scale, scale, scale), 0, size, 0)
  end.and_then(&after).start
end

#center_to(center, options = {}, more_options = {}, &after) ⇒ Object



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 218

def center_to(center, options={}, more_options={}, &after)
  if options.is_a? Numeric
    options = more_options.merge(duration: options)
  end

  options[:after] = after

  animate(options) {
    self.center = SugarCube::CoreGraphics::Point(center)
  }
end

#controllerObject

returns the nearest nextResponder instance that is a UIViewController. Goes up the responder chain until the nextResponder is a UIViewController subclass, or returns nil if none is found.



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 56

def controller
  if nextResponder.is_a?(UIViewController)
    nextResponder
  elsif nextResponder.is_a?(UIView)
    nextResponder.controller
  else
    nil
  end
end

#convert_frame_from(source) ⇒ Object



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 109

def convert_frame_from(source)
  return self.convert_rect(CGRectMake(0, 0, source.frame.size.width, source.frame.size.height), from: source)
end

#convert_frame_to(destination) ⇒ Object



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 105

def convert_frame_to(destination)
  return self.convert_rect(CGRectMake(0, 0, self.frame.size.width, self.frame.size.height), to: destination)
end

#convert_origin_from(source) ⇒ Object



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 125

def convert_origin_from(source)
  return self.convert_point([0, 0], from: source)
end

#convert_origin_to(destination) ⇒ Object



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 121

def convert_origin_to(destination)
  return self.convert_point([0, 0], to: destination)
end

#convert_point(point, from: source) ⇒ Object



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 129

def convert_point(point, to: destination)
  return self.convertPoint(point, toView: destination)
end

#convert_rect(rect, from: source) ⇒ Object



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 113

def convert_rect(rect, to: destination)
  return self.convertRect(rect, toView: destination)
end

#delta_to(delta, options = {}, more_options = {}, &after) ⇒ Object



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 244

def delta_to(delta, options={}, more_options={}, &after)
  f = self.frame
  delta = SugarCube::CoreGraphics::Point(delta)
  position = SugarCube::CoreGraphics::Point(f.origin)
  to_position = CGPoint.new(position.x + delta.x, position.y + delta.y)
  move_to(to_position, options, more_options, &after)
  return self
end

#dont_wiggleObject



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 616

def dont_wiggle
  self.layer.removeAnimationForKey('wiggle_rotate')
  self.layer.removeAnimationForKey('wiggle_translate_y')
  self.layer.removeAnimationForKey('wiggle_translate_x')
  self.layer.transform = CATransform3DIdentity
end

#fade(options = {}, more_options = {}, &after) ⇒ Object

Changes the view alpha.



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# File 'lib/osx/sugarcube-animations/nsview.rb', line 63

def fade(options={}, more_options={}, &after)
  if options.is_a? Numeric
    options = { opacity: options }
  end

  options[:after] = after

  self.animate(options) do
    self.animator.alpha = options[:opacity]
  end
end

#fade_in(options = {}, more_options = {}, &after) ⇒ Object

Changes the view alpha to 1.

See Also:



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# File 'lib/osx/sugarcube-animations/nsview.rb', line 89

def fade_in(options={}, more_options={}, &after)
  if options.is_a? Numeric
    options = more_options.merge(duration: options)
  end

  options[:opacity] ||= 1.0

  fade(options, &after)
end

#fade_out(options = {}, more_options = {}, &after) ⇒ Object

Changes the view alpha to 0.

See Also:



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# File 'lib/osx/sugarcube-animations/nsview.rb', line 77

def fade_out(options={}, more_options={}, &after)
  if options.is_a? Numeric
    options = more_options.merge(duration: options)
  end

  options[:opacity] ||= 0.0

  fade(options, &after)
end

#fade_out_and_remove(options = {}, more_options = {}, &after) ⇒ Object

Changes the view alpha to 0 and then removes the view from its superview

See Also:



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# File 'lib/osx/sugarcube-animations/nsview.rb', line 101

def fade_out_and_remove(options={}, more_options={}, &after)
  if options.is_a? Numeric
    options = more_options.merge(duration: options)
  end

  original_opacity = self.alpha

  after_remove = proc do
    self.alpha = original_opacity
    removeFromSuperview
    after.call if after
  end

  fade_out(options, &after_remove)
end

#first_responderObject

returns the first responder, or nil if it cannot be found



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 39

def first_responder
  if self.firstResponder?
    return self
  end

  found = nil
  self.subviews.each do |subview|
    found = subview.first_responder
    break if found
  end

  return found
end

#forward_fiend!(options = {}, &after) ⇒ Object

restores the layer after a call to 'back_fiend!'



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 556

def forward_fiend!(options={}, &after)
  options[:after] ||= after
  UIView.animate(options) do
    self.layer.transform = CATransform3DIdentity
  end
end

#hideObject



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# File 'lib/osx/sugarcube-animations/nsview.rb', line 57

def hide
  self.hidden = true
  return self
end

#move_to(position, options = {}, more_options = {}, &after) ⇒ Object



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 230

def move_to(position, options={}, more_options={}, &after)
  if options.is_a? Numeric
    options = more_options.merge(duration: options)
  end

  options[:after] = after

  animate(options) do
    f = self.frame
    f.origin = SugarCube::CoreGraphics::Point(position)
    self.frame = f
  end
end

#off_gesturesObject



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# File 'lib/ios/sugarcube-gestures/gestures.rb', line 33

def off_gestures
  if @sugarcube_recognizers
    @sugarcube_recognizers.each do |recognizer, proc|
      self.removeGestureRecognizer(recognizer)
    end
    @sugarcube_recognizers = nil
  end

  self
end

#on_gesture(recognizer) ⇒ Object #on_gesture(recognizer_class) ⇒ Object

A generic gesture adder, but accepts a block like the other gesture methods

Examples:

Using a UIGestureRecognizer class

view.on_gesture(UISwipeGestureRecognizer, direction: UISwipeGestureRecognizerDirectionLeft) { puts "swiped left" }

Using a UIGestureRecognizer instance

gesture = UISwipeGestureRecognizer
gesture.direction = UISwipeGestureRecognizerDirectionLeft
view.on_gesture(gesture) { puts "swiped left" }

Overloads:

  • #on_gesture(recognizer) ⇒ Object

    Adds the gesture to the view, and yields the block when the gesture is recognized

  • #on_gesture(recognizer_class) ⇒ Object

    Instantiates a gesture and adds it to the view.

Parameters:

  • options (Hash) (defaults to: {})

    method/value pairs to call on the gesture.

Yields:

  • (recognizer)

    Handles the gesture event, and passes the recognizer instance to the block.



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# File 'lib/ios/sugarcube-gestures/gestures.rb', line 19

def on_gesture(klass, options={}, &proc)
  if klass.is_a? UIGestureRecognizer
    recognizer = klass
    recognizer.addTarget(self, action:'sugarcube_handle_gesture:')
  else
    recognizer = klass.alloc.initWithTarget(self, action:'sugarcube_handle_gesture:')
  end

  options.each do |method, value|
    recognizer.send(method, value)
  end
  sugarcube_add_gesture(proc, recognizer)
end

#on_pan(fingers) ⇒ Object #on_pan(options) ⇒ Object

Overloads:

  • #on_pan(fingers) ⇒ Object

    Parameters:

    • taps (Fixnum)

      Number of fingers

  • #on_pan(options) ⇒ Object

    Options Hash (options):

    • :min_fingers (Fixnum)

      Minimum number of fingers for gesture to be recognized

    • :max_fingers (Fixnum)

      Maximum number of fingers for gesture to be recognized

    • :fingers (Fixnum)

      If min_fingers or max_fingers is not assigned, this will be the default.

Yields:

  • (recognizer)

    Handles the gesture event, and passes the recognizer instance to the block.



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# File 'lib/ios/sugarcube-gestures/gestures.rb', line 124

def on_pan(fingers_or_options=nil, &proc)
  fingers = nil
  min_fingers = nil
  max_fingers = nil

  if fingers_or_options
    if fingers_or_options.is_a? Hash
      fingers = fingers_or_options[:fingers] || fingers
      min_fingers = fingers_or_options[:min_fingers] || min_fingers
      max_fingers = fingers_or_options[:max_fingers] || max_fingers
    else
      fingers = fingers_or_options
    end
  end

  # if fingers is assigned, but not min/max, assign it as a default
  min_fingers ||= fingers
  max_fingers ||= fingers

  recognizer = UIPanGestureRecognizer.alloc.initWithTarget(self, action:'sugarcube_handle_gesture:')
  recognizer.maximumNumberOfTouches = min_fingers if min_fingers
  recognizer.minimumNumberOfTouches = max_fingers if max_fingers
  sugarcube_add_gesture(proc, recognizer)
end

#on_pinch {|recognizer| ... } ⇒ Object

Yields:

  • (recognizer)

    Handles the gesture event, and passes the recognizer instance to the block.



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# File 'lib/ios/sugarcube-gestures/gestures.rb', line 70

def on_pinch(&proc)
  recognizer = UIPinchGestureRecognizer.alloc.initWithTarget(self, action:'sugarcube_handle_gesture:')
  sugarcube_add_gesture(proc, recognizer)
end

#on_press(duration) ⇒ Object #on_press(options) ⇒ Object

Overloads:

  • #on_press(duration) ⇒ Object

    Parameters:

    • duration (Fixnum)

      How long in seconds before gesture is recognized

  • #on_press(options) ⇒ Object

    Options Hash (options):

    • :duration (Fixnum)

      How long in seconds before gesture is recognized

    • :taps (Fixnum)

      Number of taps before gesture is recognized

    • :fingers (Fixnum)

      Number of fingers before gesture is recognized

Yields:

  • (recognizer)

    Handles the gesture event, and passes the recognizer instance to the block.



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# File 'lib/ios/sugarcube-gestures/gestures.rb', line 156

def on_press(duration_or_options=nil, &proc)
  duration = nil
  taps = nil
  fingers = nil
  distance = nil

  if duration_or_options
    if duration_or_options.is_a? Hash
      duration = duration_or_options[:duration] || duration
      taps = duration_or_options[:taps] || taps
      fingers = duration_or_options[:fingers] || fingers
      distance = duration_or_options[:distance] || distance
    else
      duration = duration_or_options
    end
  end

  recognizer = UILongPressGestureRecognizer.alloc.initWithTarget(self, action:'sugarcube_handle_gesture:')
  recognizer.minimumPressDuration = duration if duration
  recognizer.numberOfTapsRequired = taps if taps
  recognizer.numberOfTouchesRequired = fingers if fingers
  recognizer.allowableMovement = distance if distance
  sugarcube_add_gesture(proc, recognizer)
end

#on_press_begin(duration_or_options = nil, &proc) ⇒ Object



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# File 'lib/ios/sugarcube-gestures/gestures.rb', line 181

def on_press_begin(duration_or_options=nil, &proc)
  duration = nil
  taps = nil
  fingers = nil
  distance = nil

  if duration_or_options
    if duration_or_options.is_a? Hash
      duration = duration_or_options[:duration] || duration
      taps = duration_or_options[:taps] || taps
      fingers = duration_or_options[:fingers] || fingers
      distance = duration_or_options[:distance] || distance
    else
      duration = duration_or_options
    end
  end

  recognizer = UILongPressGestureRecognizer.alloc.initWithTarget(self, action:'sugarcube_handle_gesture_on_begin:')
  recognizer.minimumPressDuration = duration if duration
  recognizer.numberOfTapsRequired = taps if taps
  recognizer.numberOfTouchesRequired = fingers if fingers
  recognizer.allowableMovement = distance if distance
  sugarcube_add_gesture(proc, recognizer)
end

#on_press_ended(duration_or_options = nil, &proc) ⇒ Object



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# File 'lib/ios/sugarcube-gestures/gestures.rb', line 206

def on_press_ended(duration_or_options=nil, &proc)
  duration = nil
  taps = nil
  fingers = nil
  distance = nil

  if duration_or_options
    if duration_or_options.is_a? Hash
      duration = duration_or_options[:duration] || duration
      taps = duration_or_options[:taps] || taps
      fingers = duration_or_options[:fingers] || fingers
      distance = duration_or_options[:distance] || distance
    else
      duration = duration_or_options
    end
  end

  recognizer = UILongPressGestureRecognizer.alloc.initWithTarget(self, action:'sugarcube_handle_gesture_on_ended:')
  recognizer.minimumPressDuration = duration if duration
  recognizer.numberOfTapsRequired = taps if taps
  recognizer.numberOfTouchesRequired = fingers if fingers
  recognizer.allowableMovement = distance if distance
  sugarcube_add_gesture(proc, recognizer)
end

#on_rotate {|recognizer| ... } ⇒ Object

Yields:

  • (recognizer)

    Handles the gesture event, and passes the recognizer instance to the block.



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# File 'lib/ios/sugarcube-gestures/gestures.rb', line 76

def on_rotate(&proc)
  recognizer = UIRotationGestureRecognizer.alloc.initWithTarget(self, action:'sugarcube_handle_gesture:')
  sugarcube_add_gesture(proc, recognizer)
end

#on_swipe(taps) ⇒ Object #on_swipe(options) ⇒ Object

Overloads:

  • #on_swipe(taps) ⇒ Object

    Parameters:

    • direction (Fixnum)

      Direction of swipe

  • #on_swipe(options) ⇒ Object

    Options Hash (options):

    • :fingers (Fixnum)

      Number of fingers before gesture is recognized

    • :direction (Fixnum, Symbol)

      Direction of swipe, as a UISwipeGestureRecognizerDirection constant or a symbol (:left, :right, :up, :down)

Yields:

  • (recognizer)

    Handles the gesture event, and passes the recognizer instance to the block.



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# File 'lib/ios/sugarcube-gestures/gestures.rb', line 87

def on_swipe(direction_or_options=nil, &proc)
  direction = nil
  fingers = nil

  if direction_or_options
    if direction_or_options.is_a? Hash
      direction = direction_or_options[:direction] || direction
      fingers = direction_or_options[:fingers] || fingers
    else
      direction = direction_or_options
    end
  end

  case direction
  when :left
    direction = UISwipeGestureRecognizerDirectionLeft
  when :right
    direction = UISwipeGestureRecognizerDirectionRight
  when :up
    direction = UISwipeGestureRecognizerDirectionUp
  when :down
    direction = UISwipeGestureRecognizerDirectionDown
  end

  recognizer = UISwipeGestureRecognizer.alloc.initWithTarget(self, action:'sugarcube_handle_gesture:')
  recognizer.direction = direction if direction
  recognizer.numberOfTouchesRequired = fingers if fingers
  sugarcube_add_gesture(proc, recognizer)
end

#on_tap(taps) ⇒ Object #on_tap(options) ⇒ Object

Overloads:

  • #on_tap(taps) ⇒ Object

    Parameters:

    • taps (Fixnum)

      Number of taps

  • #on_tap(options) ⇒ Object

    Options Hash (options):

    • :taps (Fixnum)

      Number of taps before gesture is recognized

    • :fingers (Fixnum)

      Number of fingers before gesture is recognized

Yields:

  • (recognizer)

    Handles the gesture event, and passes the recognizer instance to the block.



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# File 'lib/ios/sugarcube-gestures/gestures.rb', line 50

def on_tap(taps_or_options=nil, &proc)
  taps = nil
  fingers = nil

  if taps_or_options
    if taps_or_options.is_a? Hash
      taps = taps_or_options[:taps] || taps
      fingers = taps_or_options[:fingers] || fingers
    else
      taps = taps_or_options
    end
  end

  recognizer = UITapGestureRecognizer.alloc.initWithTarget(self, action:'sugarcube_handle_gesture:')
  recognizer.numberOfTapsRequired = taps if taps
  recognizer.numberOfTouchesRequired = fingers if fingers
  sugarcube_add_gesture(proc, recognizer)
end

#reframe_to(frame, options = {}, more_options = {}, &after) ⇒ Object



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 267

def reframe_to(frame, options={}, more_options={}, &after)
  if options.is_a? Numeric
    options = more_options.merge(duration: options)
  end

  options[:after] = after

  animate(options) do
    self.frame = frame
  end
end

#resize_to(size, options = {}, more_options = {}, &after) ⇒ Object



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 253

def resize_to(size, options={}, more_options={}, &after)
  if options.is_a? Numeric
    options = more_options.merge(duration: options)
  end

  options[:after] = after

  animate(options) do
    f = self.frame
    f.size = SugarCube::CoreGraphics::Size(size)
    self.frame = f
  end
end

#rotate(options = {}, more_options = {}, &after) ⇒ Object

Changes the current rotation by new_angle (rotate rotates to a specific angle)



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 298

def rotate(options={}, more_options={}, &after)
  if options.is_a? Numeric
    new_angle = options
    options = more_options
  else
    new_angle = options[:angle]
  end

  old_angle = valueForKeyPath('layer.transform.rotation.z')
  options[:angle] = old_angle + new_angle
  rotate_to(options, &after)
end

#rotate_to(options = {}, more_options = {}, &after) ⇒ Object

Changes the current rotation to new_angle (rotate rotates relative to the current rotation)



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 281

def rotate_to(options={}, more_options={}, &after)
  if options.is_a? Numeric
    new_angle = options
    options = more_options
  else
    new_angle = options[:angle]
  end

  options[:after] = after

  animate(options) do
    self.transform = CGAffineTransformMakeRotation(new_angle)
  end
end

#scale_to(scale, options = {}, more_options = {}, &after) ⇒ Object



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 195

def scale_to(scale, options={}, more_options={}, &after)
  if options.is_a? Numeric
    options = more_options.merge(duration: options)
  end

  if scale.is_a?(Numeric)
    scale_x = scale_y = scale
  else  # this could be an array, or CGSize; either way we'll use []
    scale_x = scale[0]
    scale_y = scale[1]
  end

  options[:after] = after

  animate(options) {
    radians = Math.atan2(self.transform.b, self.transform.a)
    # radians = self.valueForKeyPath('layer.transform.rotation.z')
    rotation_t = CGAffineTransformMakeRotation(radians)
    scale_t = CGAffineTransformMakeScale(scale_x, scale_y)
    self.transform = CGAffineTransformConcat(rotation_t, scale_t)
  }
end

#shake(options = {}, more_options = {}) ⇒ Object

Vibrates the target. You can trick this thing out to do other effects, like:

Examples:

# wiggle
view.shake(offset: 0.1, repeat: 2, duration: 0.5, keypath: 'transform.rotation')
# slow nodding
view.shake(offset: 20, repeat: 10, duration: 5, keypath: 'transform.translation.y')


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# File 'lib/ios/sugarcube-animations/uiview.rb', line 381

def shake(options={}, more_options={})
  if options.is_a? Numeric
    duration = options
    options = more_options
  else
    duration = options[:duration] || 0.3
  end

  offset = options[:offset] || 8
  repeat = options[:repeat] || 3
  if repeat == Float::INFINITY
    duration = 0.1
  else
    duration /= repeat
  end
  keypath = options[:keypath] || 'transform.translation.x'
  if keypath == 'transform.rotation'
    value_keypath = 'layer.transform.rotation.z'
  else
    value_keypath = keypath
  end

  if options[:from_current]
    origin = options[:origin] || valueForKeyPath(value_keypath)
  else
    origin = options[:origin] || 0
  end
  left = origin - offset
  right = origin + offset

  animation = CAKeyframeAnimation.animationWithKeyPath(keypath)
  # sometimes, because of conflicts with CATiming (or something to that
  # effect), calling 'duration=' results in a compiler or runtime error.
  animation.send(:setDuration:', duration)
  animation.repeatCount = repeat
  animation.values = [origin, left, right, origin]
  animation.keyTimes = [0, 0.25, 0.75, 1.0]
  self.layer.addAnimation(animation, forKey:'shake')
  return self
end

#showObject



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# File 'lib/osx/sugarcube-animations/nsview.rb', line 52

def show
  self.hidden = false
  return self
end

#slide(direction, options = {}, more_options = {}, &after) ⇒ Object



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 311

def slide(direction, options={}, more_options={}, &after)
  if options.is_a? Numeric
    size = options
    options = more_options
  else
    size = options[:size]
  end

  case direction
  when :left
    size ||= self.frame.size.width
    delta_to([-size, 0], options, &after)
  when :right
    size ||= self.frame.size.width
    delta_to([size, 0], options, &after)
  when :up
    size ||= self.frame.size.height
    delta_to([0, -size], options, &after)
  when :down
    size ||= self.frame.size.height
    delta_to([0, size], options, &after)
  else
    raise "Unknown direction #{direction.inspect}"
  end
  return self
end

#slide_from(direction, options = {}, more_options = {}, &after) ⇒ Object

moves the view off screen, then animates it back on screen. The movement off screen happens immediately, so if you provide a delay: option, it will only affect the movement back on screen.



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 341

def slide_from(direction, options={}, more_options={}, &after)
  if options.is_a? Numeric
    size = options
    options = more_options
  else
    size = options[:size]
  end

  options[:from_current] = false unless options.key?(:from_current)
  window_size = UIApplication.sharedApplication.windows[0].frame.size

  case direction
  when :left
    size ||= window_size.width
    self.center = CGPoint.new(self.center.x - size, self.center.y)
    self.delta_to([size, 0], options, &after)
  when :right
    size ||= window_size.width
    self.center = CGPoint.new(self.center.x + size, self.center.y)
    self.delta_to([-size, 0], options, &after)
  when :top, :up
    size ||= window_size.height
    self.center = CGPoint.new(self.center.x, self.center.y - size)
    self.delta_to([0, size], options, &after)
  when :bottom, :down
    size ||= window_size.height
    self.center = CGPoint.new(self.center.x, self.center.y + size)
    self.delta_to([0, -size], options, &after)
  else
    raise "Unknown direction #{direction.inspect}"
  end
  return self
end

#sugarcube_to_s(options = {}) ⇒ Object



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# File 'lib/ios/sugarcube-to_s/uiview.rb', line 3

def sugarcube_to_s(options={})
  suffix = ''
  # teacup
  if self.respond_to?(:stylename) && self.stylename && self.stylename.length > 0
    suffix += " stylename: #{self.stylename.inspect}"
  end
  # motionkit
  if self.respond_to?(:motion_kit_ids) && self.motion_kit_ids && self.motion_kit_ids.length > 0
    if motion_kit_ids.length == 1
      suffix += " motion_kit_id: #{self.motion_kit_id.inspect}"
    else
      suffix += " motion_kit_ids: #{self.motion_kit_ids.inspect}"
    end
  end
  # rmq?

  if options[:inner].is_a? Hash
    inner = ''
    options[:inner].each do |key, value|
      inner += ', ' if inner.length > 0
      inner += "#{key}: #{value.inspect}"
    end
  else
    inner = options[:inner]
  end

  "#{self.class.to_s}(##{self.object_id.to_s(16)}, [[#{frame.origin.x}, #{frame.origin.y}], [#{frame.size.width}, #{frame.size.height}]]" +
                      (inner ? ', ' + inner : '') +
                      ')' +
                      (options.fetch(:superview, true) && self.superview ? ", child of #{self.superview.class.to_s}(##{self.superview.object_id.to_s(16)})" : '') +
                      suffix
end

#to_sObject



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# File 'lib/ios/sugarcube-to_s/uiview.rb', line 36

def to_s
  sugarcube_to_s
end

#tumble(options = {}, more_options = {}, &after) ⇒ Object

Moves the view off screen while slowly rotating it.

Based on https://github.com/warrenm/AHAlertView/blob/master/AHAlertView/AHAlertView.m



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 431

def tumble(options={}, more_options={}, &after)
  if options.is_a? Numeric
    default_duration = options
    options = more_options
    side = options[:side] || :left
  elsif options.is_a? Symbol
    side = options
    options = more_options
    default_duration = 0.3
  else
    default_duration = 0.3
    side = options[:side] || :left
  end

  case side
    when :left
      angle = -Math::PI/4
    when :right
      angle = Math::PI/4
    else
      raise "Unknown direction #{side.inspect}"
  end

  options[:duration] ||= default_duration
  unless options.key?(:options) || options.key?(:curve)
    options[:options] = UIView.sugarcube_animation_options(curve: UIViewAnimationOptionCurveEaseIn)
  end

  reset_transform = self.transform
  reset_after = ->(finished) do
    self.transform = reset_transform
  end

  if after
    options[:after] = ->(finished) do
      reset_after.call(finished)

      if after.arity == 0
        after.call
      else
        after.call(finished)
      end
    end
  else
    options[:after] = reset_after
  end

  self.animate(options) do
    window = UIApplication.sharedApplication.windows[0]
    top = self.convertPoint([0, 0], toView:nil).y
    height = window.frame.size.height - top
    offset = CGPoint.new(0, height * 1.5)
    offset = CGPointApplyAffineTransform(offset, self.transform)
    self.transform = CGAffineTransformConcat(self.transform, CGAffineTransformMakeRotation(angle))
    self.center = CGPointMake(self.center.x + offset.x, self.center.y + offset.y)
  end
end

#tumble_in(options = {}, more_options = {}, &after) ⇒ Object

Moves the view on screen while slowly rotating it.

Based on https://github.com/warrenm/AHAlertView/blob/master/AHAlertView/AHAlertView.m



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 492

def tumble_in(options={}, more_options={}, &after)
  if options.is_a? Numeric
    default_duration = options
    options = more_options
    side = options[:side] || :left
  elsif options.is_a? Symbol
    side = options
    options = more_options
    default_duration = 0.3
  else
    default_duration = 0.3
    side = options[:side] || :left
  end

  case side
    when :left
      angle = -Math::PI/4
    when :right
      angle = Math::PI/4
    else
      raise "Unknown direction #{side.inspect}"
  end

  reset_transform = self.transform
  reset_center = self.center

  options[:duration] ||= default_duration
  unless options.key?(:options) || options.key?(:curve)
    options[:options] = UIView.sugarcube_animation_options(curve: UIViewAnimationOptionCurveEaseOut)
  end
  options[:after] = after

  window = UIApplication.sharedApplication.windows[0]
  top = self.convertPoint([0, 0], toView:nil).y
  height = window.frame.size.height - top
  offset = CGPoint.new(0, height * -1.5)
  offset = CGPointApplyAffineTransform(offset, self.transform)
  self.transform = CGAffineTransformConcat(self.transform, CGAffineTransformMakeRotation(angle))
  self.center = CGPointMake(self.center.x + offset.x, self.center.y + offset.y)

  self.animate(options) do
    self.transform = reset_transform
    self.center = reset_center
  end
end

#uiimage(use_content_size = false) ⇒ Object

Easily take a snapshot of a UIView.

Calling uiimage with no arguments will return the image based on the bounds of the image. In the case of container views (notably UIScrollView and its children) this does not include the entire contents, which is something you probably want.

If you pass a truthy value to this method, it will use the contentSize of the view instead of the bounds, and it will draw all the child views, not just those that are visible in the viewport.

It is guaranteed that true and :all will always have this behavior. In the future, if this argument becomes something that accepts multiple values, those two are sacred.



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 80

def uiimage(use_content_size=false)
  if use_content_size
    UIGraphicsBeginImageContextWithOptions(contentSize, false, 0.0)
    context = UIGraphicsGetCurrentContext()
    self.subviews.each do |subview|
      CGContextSaveGState(context)
      CGContextTranslateCTM(context, subview.frame.origin.x, subview.frame.origin.y)
      subview.layer.renderInContext(context)
      CGContextRestoreGState(context)
    end
    image = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()
  else
    UIGraphicsBeginImageContextWithOptions(bounds.size, false, 0.0)
    if self.respond_to?('drawViewHierarchyInRect:afterScreenUpdates:')
      self.drawViewHierarchyInRect(self.bounds, afterScreenUpdates: true)
    else
      layer.renderInContext(UIGraphicsGetCurrentContext())
    end
    image = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()
  end
  return image
end

#unshift(view) ⇒ Object



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# File 'lib/ios/sugarcube-ui/uiview.rb', line 33

def unshift(view)
  self.insertSubview(view, atIndex: 0)
  return self
end

#wiggleObject Also known as: super_good_delete_wiggle

and this "SuperGoodDeleteWiggle" is an aptly named animation care of mxcl (of PromiseKit, YOLOKit, and if he used RubyMotion I'm 99% sure he would be using SugarCube - see his "initWith...F**It' repo if you don't believe me) https://github.com/mxcl/SuperGoodDeleteWiggle

Note: doesn't accept a "completion" block, because it's an ongoing animation



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# File 'lib/ios/sugarcube-animations/uiview.rb', line 570

def wiggle
  @wiggle_angle ||= 0.035
  @wiggle_offset ||= 0
  @wiggle_transform ||= -0.5

  self.layer.transform = CATransform3DMakeRotation(@wiggle_angle, 0, 0, 1.0)

  @wiggle_angle = -@wiggle_angle

  @wiggle_offset += 0.03
  if @wiggle_offset > 0.9
    @wiggle_offset -= 0.9
  end

  @wiggle_transform = -@wiggle_transform

  animation = CABasicAnimation.animationWithKeyPath('transform')
  animation.toValue = NSValue.valueWithCATransform3D CATransform3DMakeRotation(@wiggle_angle, 0, 0, 1.0)
  animation.repeatCount = Float::MAX
  animation.duration = 0.12
  animation.autoreverses = true
  animation.timeOffset = @wiggle_offset
  self.layer.addAnimation(animation, forKey: 'wiggle_rotate')

  animation = CABasicAnimation.animationWithKeyPath('transform.translation.y')
  animation.duration = 0.08
  animation.repeatCount = Float::MAX
  animation.autoreverses = true
  animation.fromValue = @wiggle_transform
  animation.toValue = -@wiggle_transform
  animation.fillMode = KCAFillModeForwards
  animation.timeOffset = @wiggle_offset
  self.layer.addAnimation(animation, forKey: 'wiggle_translate_y')

  animation = CABasicAnimation.animationWithKeyPath('transform.translation.x')
  animation.duration = 0.09
  animation.repeatCount = Float::MAX
  animation.autoreverses = true
  animation.fromValue = @wiggle_transform
  animation.toValue = -@wiggle_transform
  animation.fillMode = KCAFillModeForwards
  animation.timeOffset = @wiggle_offset + 0.6
  self.layer.addAnimation(animation, forKey: 'wiggle_translate_x')
end

#|(filter) ⇒ Object

Applies a filter (to a UIImage representation) or coerces to another format



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# File 'lib/ios/sugarcube-pipes/pipes.rb', line 35

def |(filter)
 if filter == UIImage
   self.uiimage
 else
   raise "The `|` operator is not supported for the #{filter.is_a?(Class) ? filter.name : filter.class.to_s} class"
 end
end