Class: Skia::Picture

Inherits:
Base
  • Object
show all
Defined in:
lib/skia/picture.rb

Instance Attribute Summary

Attributes inherited from Base

#ptr

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#null?, release_callback, #to_ptr

Constructor Details

#initialize(ptr) ⇒ Picture

Returns a new instance of Picture.



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# File 'lib/skia/picture.rb', line 5

def initialize(ptr)
  super(ptr, :sk_picture_unref)
end

Class Method Details

.from_data(data) ⇒ Object

Raises:



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# File 'lib/skia/picture.rb', line 9

def self.from_data(data)
  data_obj = data.is_a?(Data) ? data : Data.new(data)
  ptr = Native.sk_picture_deserialize_from_data(data_obj.ptr)
  raise Error, "Failed to deserialize picture" if ptr.nil? || ptr.null?

  new(ptr)
end

.load(path) ⇒ Object 



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# File 'lib/skia/picture.rb', line 58

def self.load(path)
  data = Data.from_file(path)
  from_data(data)
end

.record(bounds, &block) ⇒ Object 



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# File 'lib/skia/picture.rb', line 17

def self.record(bounds, &block)
  recorder = PictureRecorder.new
  recorder.begin_recording(bounds, &block)
end

Instance Method Details

#approximate_bytes_used ⇒ Object 



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# File 'lib/skia/picture.rb', line 48

def approximate_bytes_used
  Native.sk_picture_approximate_bytes_used(@ptr)
end

#approximate_op_count(nested: true) ⇒ Object 



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# File 'lib/skia/picture.rb', line 44

def approximate_op_count(nested: true)
  Native.sk_picture_approximate_op_count(@ptr, nested)
end

#cull_rect ⇒ Object 



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# File 'lib/skia/picture.rb', line 26

def cull_rect
  rect_struct = Native::SKRect.new
  Native.sk_picture_get_cull_rect(@ptr, rect_struct)
  Rect.from_struct(rect_struct)
end

#playback(canvas) ⇒ Object 



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# File 'lib/skia/picture.rb', line 32

def playback(canvas)
  Native.sk_picture_playback(@ptr, canvas.ptr)
  self
end

#save(path) ⇒ Object 



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# File 'lib/skia/picture.rb', line 52

def save(path)
  data = serialize
  File.binwrite(path, data.to_s)
  self
end

#serialize ⇒ Object

Raises:



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# File 'lib/skia/picture.rb', line 37

def serialize
  data_ptr = Native.sk_picture_serialize_to_data(@ptr)
  raise Error, "Failed to serialize picture" if data_ptr.nil? || data_ptr.null?

  Data.new(data_ptr)
end

#unique_id ⇒ Object 



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# File 'lib/skia/picture.rb', line 22

def unique_id
  Native.sk_picture_get_unique_id(@ptr)
end