Node

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Object Hierarchy:

Description:

Content:

Properties:

• public CachePolicy cache_policy { get; set construct; }
• public bool dont_cache { get; set construct; }
• public Operation gegl_operation { owned get; set construct; }
• public string name { owned get; set construct; }
• public string operation { owned get; set construct; }
• public bool passthrough { get; set construct; }
• public bool use_opencl { get; set construct; }

Creation methods:

• public Node ()
  Create a new graph that can contain further processing nodes.
• public Node.from_file (string path)
  The Node returned contains the graph described by the tree of stacks in the XML document.
• public Node.from_serialized (string chaindata, string path_root)
• public Node.from_xml (string xmldata, string path_root)
  The Node returned contains the graph described by the tree of stacks in the XML document.

Methods:

• public unowned Node add_child (Node child)
  Make the GeglNode this, take a reference on child.
• public void blit_buffer (Buffer? buffer, Rectangle? roi, int level, AbyssPolicy abyss_policy)
  Render a rectangular region from a node to the given buffer.
• public bool connect (string a_pad_name, Node b, string b_pad_name)
  Makes a connection between the pads of two nodes, one pad should be a source pad the other a sink pad, order does not matter.
• public bool connect_from (string input_pad_name, Node source, string output_pad_name)
  Makes a connection between the pads of two nodes.
• public bool connect_to (string output_pad_name, Node sink, string input_pad_name)
  Makes a connection between the pads of two nodes.
• public unowned Node create_child (string operation)
  Creates a new processing node that performs the specified operation.
• public unowned Node detect (int x, int y)
  Performs hit detection by returning the node providing data at a given coordinate pair.
• public bool disconnect (string input_pad)
  Disconnects node connected to input_pad of this (if any).
• public unowned ParamSpec find_property (string property_name)
• public SList<unowned Node> get_children ()
• public int get_consumers (string output_pad, out Node[] nodes, out string[] pads)
  Retrieve which pads on which nodes are connected to a named output_pad, and the number of connections.
• public unowned Operation? get_gegl_operation ()
• public unowned Node get_input_proxy (string pad_name)
  Proxies are used to route between nodes of a subgraph contained within a node.
• public unowned string get_operation ()
• public unowned Node get_output_proxy (string pad_name)
  Proxies are used to route between nodes of a subgraph contained within a node.
• public unowned string get_pad_description (string pad_name)
• public unowned string get_pad_label (string pad_name)
• public unowned Node get_parent ()
  Returns a GeglNode that keeps a reference on a child.
• public bool get_passthrough ()
• public unowned Node get_producer (string input_pad_name, string? output_pad_name)
• public bool has_pad (string pad_name)
  Returns TRUE if the node has a pad with the specified name
• public Rectangle introspectable_get_bounding_box ()
  Returns the position and dimensions of a rectangle spanning the area defined by a node.
• public Value? introspectable_get_property (string property_name)
• public bool is_graph ()
• public void link (Node sink)
  This is equivalent to gegl_node_connect (source, "output", sink, "input");
• public void link_many (...)
  Synthetic sugar for linking a chain of nodes with "output"-> "input".
• public string[] list_input_pads ()
  If the node has any input pads this function returns a null terminated array of pad names, otherwise it returns NULL.
• public string[] list_output_pads ()
  If the node has any output pads this function returns a null terminated array of pad names, otherwise it returns NULL.
• public unowned Node new_child (...)
  Creates a new processing node that performs the specified operation with a NULL terminated list of key/value pairs for initial parameter values configuring the operation.
• public Processor new_processor (Rectangle rectangle)
• public void process ()
  Render a composition.
• public unowned Node remove_child (Node child)
  Removes a child from a GeglNode.
• public void set_enum_as_string (string key, string value)
• public void set_passthrough (bool passthrough)
• public void set_property (string property_name, Value value)
  This is mainly included for language bindings.
• public void set_time (double time)
  Sets the right value in animated properties of this node and all its dependendcies to be the specified time position.
• public string to_xml (string path_root)
  Returns a freshly allocated \0 terminated string containing a XML serialization of the composition produced by a node (and thus also the nodes contributing data to the specified node).
• public string to_xml_full (Node? tail, string path_root)
  Returns a freshly allocated \0 terminated string containing a XML serialization of a segment of a graph from this to tail nodes.

Signals:

• public signal void computed (Rectangle object)
• public signal void invalidated (Rectangle object)
• public signal void progress (double progress)

Inherited Members: