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Hierarchy

Index

Constructors

Properties

dontCache: boolean
gTypeInstance: TypeInstance
geglOperation: Gegl.Operation
name: string
operation: string
passthrough: boolean
useOpencl: boolean
$gtype: GType<Gegl.Node>
name: string

Methods

  • Make the GeglNode graph, take a reference on child. This reference will be dropped when the reference count on the graph reaches zero.

    Parameters

    Returns Gegl.Node

  • Creates a binding between source_property on source and target_property on target.

    Whenever the source_property is changed the target_property is updated using the same value. For instance:

      g_object_bind_property (action, "active", widget, "sensitive", 0);
    

    Will result in the "sensitive" property of the widget #GObject instance to be updated with the same value of the "active" property of the action #GObject instance.

    If flags contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual: if target_property on target changes then the source_property on source will be updated as well.

    The binding will automatically be removed when either the source or the target instances are finalized. To remove the binding without affecting the source and the target you can just call g_object_unref() on the returned #GBinding instance.

    Removing the binding by calling g_object_unref() on it must only be done if the binding, source and target are only used from a single thread and it is clear that both source and target outlive the binding. Especially it is not safe to rely on this if the binding, source or target can be finalized from different threads. Keep another reference to the binding and use g_binding_unbind() instead to be on the safe side.

    A #GObject can have multiple bindings.

    Parameters

    • sourceProperty: string

      the property on source to bind

    • target: GObject.Object

      the target #GObject

    • targetProperty: string

      the property on target to bind

    • flags: BindingFlags

      flags to pass to #GBinding

    Returns Binding

  • Creates a binding between source_property on source and target_property on target, allowing you to set the transformation functions to be used by the binding.

    This function is the language bindings friendly version of g_object_bind_property_full(), using #GClosures instead of function pointers.

    Parameters

    • sourceProperty: string

      the property on source to bind

    • target: GObject.Object

      the target #GObject

    • targetProperty: string

      the property on target to bind

    • flags: BindingFlags

      flags to pass to #GBinding

    • transformTo: TClosure<any, any>

      a #GClosure wrapping the transformation function from the source to the target, or %NULL to use the default

    • transformFrom: TClosure<any, any>

      a #GClosure wrapping the transformation function from the target to the source, or %NULL to use the default

    Returns Binding

  • Render a rectangular region from a node to the given buffer.

    Parameters

    Returns void

  • connect(sigName: "computed", callback: Gegl.Node_ComputedSignalCallback): number
  • connect(sigName: "invalidated", callback: Gegl.Node_InvalidatedSignalCallback): number
  • connect(sigName: "progress", callback: Gegl.Node_ProgressSignalCallback): number
  • connect(sigName: "notify::dont-cache", callback: ((...args: any[]) => void)): number
  • connect(sigName: "notify::gegl-operation", callback: ((...args: any[]) => void)): number
  • connect(sigName: "notify::name", callback: ((...args: any[]) => void)): number
  • connect(sigName: "notify::operation", callback: ((...args: any[]) => void)): number
  • connect(sigName: "notify::passthrough", callback: ((...args: any[]) => void)): number
  • connect(sigName: "notify::use-opencl", callback: ((...args: any[]) => void)): number
  • connect(sigName: string, callback: ((...args: any[]) => void)): number
  • Parameters

    Returns number

  • Parameters

    Returns number

  • Parameters

    Returns number

  • Parameters

    • sigName: "notify::dont-cache"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns number

  • Parameters

    • sigName: "notify::gegl-operation"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns number

  • Parameters

    • sigName: "notify::name"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns number

  • Parameters

    • sigName: "notify::operation"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns number

  • Parameters

    • sigName: "notify::passthrough"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns number

  • Parameters

    • sigName: "notify::use-opencl"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns number

  • Parameters

    • sigName: string
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns number

  • connectFrom(inputPadName: string, source: Gegl.Node, outputPadName: string): boolean
  • Makes a connection between the pads of two nodes.

    Returns TRUE if the connection was successfully made.

    Parameters

    • inputPadName: string

      the name of the input pad we are connecting to

    • source: Gegl.Node

      the node producing data we want to connect.

    • outputPadName: string

      the output pad we want to use on the source.

    Returns boolean

  • connectTo(outputPadName: string, sink: Gegl.Node, inputPadName: string): boolean
  • Makes a connection between the pads of two nodes.

    Returns TRUE if the connection was successfully made.

    Parameters

    • outputPadName: string

      the output pad we want to use on the source.

    • sink: Gegl.Node

      the node we're connecting an input to

    • inputPadName: string

      the name of the input pad we are connecting to

    Returns boolean

  • createChild(operation: string): Gegl.Node
  • Creates a new processing node that performs the specified operation. All properties of the operation will have their default values. This is included as an addition to #gegl_node_new_child in the public API to have a non varargs entry point for bindings as well as sometimes simpler more readable code.

    Parameters

    • operation: string

      the type of node to create.

    Returns Gegl.Node

  • Performs hit detection by returning the node providing data at a given coordinate pair. Currently operates only on bounding boxes and not pixel data.

    Parameters

    • x: number

      x coordinate

    • y: number

      y coordinate

    Returns Gegl.Node

  • disconnect(inputPad: string): boolean
  • Disconnects node connected to input_pad of node (if any).

    Returns TRUE if a connection was broken.

    Parameters

    • inputPad: string

      the input pad to disconnect.

    Returns boolean

  • emit(sigName: "computed", ...args: any[]): void
  • emit(sigName: "invalidated", ...args: any[]): void
  • emit(sigName: "progress", ...args: any[]): void
  • emit(sigName: "notify::dont-cache", ...args: any[]): void
  • emit(sigName: "notify::gegl-operation", ...args: any[]): void
  • emit(sigName: "notify::name", ...args: any[]): void
  • emit(sigName: "notify::operation", ...args: any[]): void
  • emit(sigName: "notify::passthrough", ...args: any[]): void
  • emit(sigName: "notify::use-opencl", ...args: any[]): void
  • emit(sigName: string, ...args: any[]): void
  • findProperty(propertyName: string): ParamSpec
  • forceFloating(): void
  • This function is intended for #GObject implementations to re-enforce a [floating][floating-ref] object reference. Doing this is seldom required: all #GInitiallyUnowneds are created with a floating reference which usually just needs to be sunken by calling g_object_ref_sink().

    Returns void

  • freezeNotify(): void
  • Increases the freeze count on object. If the freeze count is non-zero, the emission of "notify" signals on object is stopped. The signals are queued until the freeze count is decreased to zero. Duplicate notifications are squashed so that at most one #GObject::notify signal is emitted for each property modified while the object is frozen.

    This is necessary for accessors that modify multiple properties to prevent premature notification while the object is still being modified.

    Returns void

  • getConsumers(outputPad: string): [number, Gegl.Node[], string[]]
  • Retrieve which pads on which nodes are connected to a named output_pad, and the number of connections. Both the location for the generated nodes array and pads array can be left as NULL. If they are non NULL both should be freed with g_free. The arrays are NULL terminated.

    Returns the number of consumers connected to this output_pad.

    Parameters

    • outputPad: string

      the output pad we want to know who uses.

    Returns [number, Gegl.Node[], string[]]

  • getData(key?: string): object
  • Gets a named field from the objects table of associations (see g_object_set_data()).

    Parameters

    • Optional key: string

      name of the key for that association

    Returns object

  • getInputProxy(padName: string): Gegl.Node
  • Proxies are used to route between nodes of a subgraph contained within a node.

    Parameters

    • padName: string

      the name of the pad.

    Returns Gegl.Node

  • getOperation(): string
  • getOutputProxy(padName: string): Gegl.Node
  • Proxies are used to route between nodes of a subgraph contained within a node.

    Parameters

    • padName: string

      the name of the pad.

    Returns Gegl.Node

  • getPassthrough(): boolean
  • getProducer(inputPadName: string, outputPadName: string): Gegl.Node
  • getProperty(propertyName: string): any
  • getProperty(propertyName?: string, value?: any): void
  • getProperty(...args: any[]): any
  • getProperty(args_or_propertyName: string | any[], value?: any): any
  • Gets a property of an object.

    The value can be:

    • an empty #GValue initialized by %G_VALUE_INIT, which will be automatically initialized with the expected type of the property (since GLib 2.60)
    • a #GValue initialized with the expected type of the property
    • a #GValue initialized with a type to which the expected type of the property can be transformed

    In general, a copy is made of the property contents and the caller is responsible for freeing the memory by calling g_value_unset().

    Note that g_object_get_property() is really intended for language bindings, g_object_get() is much more convenient for C programming.

    Parameters

    • propertyName: string

    Returns any

  • Gets a property of an object.

    The value can be:

    • an empty #GValue initialized by %G_VALUE_INIT, which will be automatically initialized with the expected type of the property (since GLib 2.60)
    • a #GValue initialized with the expected type of the property
    • a #GValue initialized with a type to which the expected type of the property can be transformed

    In general, a copy is made of the property contents and the caller is responsible for freeing the memory by calling g_value_unset().

    Note that g_object_get_property() is really intended for language bindings, g_object_get() is much more convenient for C programming.

    Parameters

    • Optional propertyName: string

      the name of the property to get

    • Optional value: any

      return location for the property value

    Returns void

  • Parameters

    • Rest ...args: any[]

    Returns any

  • Parameters

    • args_or_propertyName: string | any[]
    • Optional value: any

    Returns any

  • getQdata(quark: number): object
  • This function gets back user data pointers stored via g_object_set_qdata().

    Parameters

    • quark: number

      A #GQuark, naming the user data pointer

    Returns object

  • getv(names: string[], values: any[]): void
  • Gets n_properties properties for an object. Obtained properties will be set to values. All properties must be valid. Warnings will be emitted and undefined behaviour may result if invalid properties are passed in.

    Parameters

    • names: string[]

      the names of each property to get

    • values: any[]

      the values of each property to get

    Returns void

  • hasPad(padName: string): boolean
  • Returns TRUE if the node has a pad with the specified name

    Parameters

    • padName: string

      the pad name we are looking for

    Returns boolean

  • isFloating(): boolean
  • Synthetic sugar for linking the "output" pad of source to the "input" pad of sink.

    Parameters

    Returns void

  • listInputPads(): string[]
  • If the node has any input pads this function returns a null terminated array of pad names, otherwise it returns NULL. The return value can be freed with g_strfreev().

    Returns string[]

  • listOutputPads(): string[]
  • If the node has any output pads this function returns a null terminated array of pad names, otherwise it returns NULL. The return value can be freed with g_strfreev().

    Returns string[]

  • notify(propertyName: string): void
  • Emits a "notify" signal for the property property_name on object.

    When possible, eg. when signaling a property change from within the class that registered the property, you should use g_object_notify_by_pspec() instead.

    Note that emission of the notify signal may be blocked with g_object_freeze_notify(). In this case, the signal emissions are queued and will be emitted (in reverse order) when g_object_thaw_notify() is called.

    Parameters

    • propertyName: string

      the name of a property installed on the class of object.

    Returns void

  • Emits a "notify" signal for the property specified by pspec on object.

    This function omits the property name lookup, hence it is faster than g_object_notify().

    One way to avoid using g_object_notify() from within the class that registered the properties, and using g_object_notify_by_pspec() instead, is to store the GParamSpec used with g_object_class_install_property() inside a static array, e.g.:

      enum
    {
    PROP_0,
    PROP_FOO,
    PROP_LAST
    };

    static GParamSpec *properties[PROP_LAST];

    static void
    my_object_class_init (MyObjectClass *klass)
    {
    properties[PROP_FOO] = g_param_spec_int ("foo", "Foo", "The foo",
    0, 100,
    50,
    G_PARAM_READWRITE);
    g_object_class_install_property (gobject_class,
    PROP_FOO,
    properties[PROP_FOO]);
    }

    and then notify a change on the "foo" property with:

      g_object_notify_by_pspec (self, properties[PROP_FOO]);
    

    Parameters

    • pspec: ParamSpec

      the #GParamSpec of a property installed on the class of object.

    Returns void

  • off(sigName: "computed", callback: Gegl.Node_ComputedSignalCallback): EventEmitter
  • off(sigName: "invalidated", callback: Gegl.Node_InvalidatedSignalCallback): EventEmitter
  • off(sigName: "progress", callback: Gegl.Node_ProgressSignalCallback): EventEmitter
  • off(sigName: "notify::dont-cache", callback: ((...args: any[]) => void)): EventEmitter
  • off(sigName: "notify::gegl-operation", callback: ((...args: any[]) => void)): EventEmitter
  • off(sigName: "notify::name", callback: ((...args: any[]) => void)): EventEmitter
  • off(sigName: "notify::operation", callback: ((...args: any[]) => void)): EventEmitter
  • off(sigName: "notify::passthrough", callback: ((...args: any[]) => void)): EventEmitter
  • off(sigName: "notify::use-opencl", callback: ((...args: any[]) => void)): EventEmitter
  • off(sigName: string, callback: ((...args: any[]) => void)): EventEmitter
  • Parameters

    Returns EventEmitter

  • Parameters

    Returns EventEmitter

  • Parameters

    Returns EventEmitter

  • Parameters

    • sigName: "notify::dont-cache"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns EventEmitter

  • Parameters

    • sigName: "notify::gegl-operation"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns EventEmitter

  • Parameters

    • sigName: "notify::name"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns EventEmitter

  • Parameters

    • sigName: "notify::operation"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns EventEmitter

  • Parameters

    • sigName: "notify::passthrough"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns EventEmitter

  • Parameters

    • sigName: "notify::use-opencl"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns EventEmitter

  • Parameters

    • sigName: string
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns EventEmitter

  • on(sigName: "computed", callback: Gegl.Node_ComputedSignalCallback, after?: boolean): EventEmitter
  • on(sigName: "invalidated", callback: Gegl.Node_InvalidatedSignalCallback, after?: boolean): EventEmitter
  • on(sigName: "progress", callback: Gegl.Node_ProgressSignalCallback, after?: boolean): EventEmitter
  • on(sigName: "notify::dont-cache", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • on(sigName: "notify::gegl-operation", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • on(sigName: "notify::name", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • on(sigName: "notify::operation", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • on(sigName: "notify::passthrough", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • on(sigName: "notify::use-opencl", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • on(sigName: string, callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • Parameters

    Returns EventEmitter

  • Parameters

    Returns EventEmitter

  • Parameters

    Returns EventEmitter

  • Parameters

    • sigName: "notify::dont-cache"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: "notify::gegl-operation"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: "notify::name"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: "notify::operation"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: "notify::passthrough"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: "notify::use-opencl"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: string
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • once(sigName: "computed", callback: Gegl.Node_ComputedSignalCallback, after?: boolean): EventEmitter
  • once(sigName: "invalidated", callback: Gegl.Node_InvalidatedSignalCallback, after?: boolean): EventEmitter
  • once(sigName: "progress", callback: Gegl.Node_ProgressSignalCallback, after?: boolean): EventEmitter
  • once(sigName: "notify::dont-cache", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • once(sigName: "notify::gegl-operation", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • once(sigName: "notify::name", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • once(sigName: "notify::operation", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • once(sigName: "notify::passthrough", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • once(sigName: "notify::use-opencl", callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • once(sigName: string, callback: ((...args: any[]) => void), after?: boolean): EventEmitter
  • Parameters

    Returns EventEmitter

  • Parameters

    Returns EventEmitter

  • Parameters

    Returns EventEmitter

  • Parameters

    • sigName: "notify::dont-cache"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: "notify::gegl-operation"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: "notify::name"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: "notify::operation"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: "notify::passthrough"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: "notify::use-opencl"
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • Parameters

    • sigName: string
    • callback: ((...args: any[]) => void)
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    • Optional after: boolean

    Returns EventEmitter

  • process(): void
  • Render a composition. This can be used for instance on a node with a "png-save" operation to render all necessary data, and make it be written to file. This function wraps the usage of a GeglProcessor in a single blocking function call. If you need a non-blocking operation, then make a direct use of #gegl_processor_work. See #GeglProcessor.


    GeglNode *gegl; GeglRectangle roi; GeglNode *png_save; unsigned char *buffer;

    gegl = gegl_parse_xml (xml_data); roi = gegl_node_get_bounding_box (gegl);

    create png_save from the graph, the parent/child relationship

    only mean anything when it comes to memory management.

    png_save = gegl_node_new_child (gegl, "operation", "gegl:png-save", "path", "output.png", NULL);

    gegl_node_link (gegl, png_save); gegl_node_process (png_save);

    buffer = malloc (roi.wroi.h4); gegl_node_blit (gegl, 1.0, &roi, babl_format("R'G'B'A u8"), buffer, GEGL_AUTO_ROWSTRIDE, GEGL_BLIT_DEFAULT);

    Returns void

  • progress(progress: number, message: string): void
  • Increases the reference count of object.

    Since GLib 2.56, if GLIB_VERSION_MAX_ALLOWED is 2.56 or greater, the type of object will be propagated to the return type (using the GCC typeof() extension), so any casting the caller needs to do on the return type must be explicit.

    Returns GObject.Object

  • Increase the reference count of object, and possibly remove the [floating][floating-ref] reference, if object has a floating reference.

    In other words, if the object is floating, then this call "assumes ownership" of the floating reference, converting it to a normal reference by clearing the floating flag while leaving the reference count unchanged. If the object is not floating, then this call adds a new normal reference increasing the reference count by one.

    Since GLib 2.56, the type of object will be propagated to the return type under the same conditions as for g_object_ref().

    Returns GObject.Object

  • Removes a child from a GeglNode. The reference previously held will be dropped so increase the reference count before removing when reparenting a child between two graphs.

    Parameters

    Returns Gegl.Node

  • runDispose(): void
  • Releases all references to other objects. This can be used to break reference cycles.

    This function should only be called from object system implementations.

    Returns void

  • setData(key: string, data?: object): void
  • Each object carries around a table of associations from strings to pointers. This function lets you set an association.

    If the object already had an association with that name, the old association will be destroyed.

    Internally, the key is converted to a #GQuark using g_quark_from_string(). This means a copy of key is kept permanently (even after object has been finalized) — so it is recommended to only use a small, bounded set of values for key in your program, to avoid the #GQuark storage growing unbounded.

    Parameters

    • key: string

      name of the key

    • Optional data: object

      data to associate with that key

    Returns void

  • setPassthrough(passthrough: boolean): void
  • setProperty(propertyName: string, value?: any): void
  • setProperty(propertyName: string, value?: any): void
  • setProperty(...args: any[]): any
  • setProperty(args_or_propertyName: string | any[], value?: any): any
  • This is mainly included for language bindings. Using #gegl_node_set is more convenient when programming in C.

    Parameters

    • propertyName: string

      the name of the property to set

    • Optional value: any

      a GValue containing the value to be set in the property.

    Returns void

  • Sets a property on an object.

    Parameters

    • propertyName: string

      the name of the property to set

    • Optional value: any

      the value

    Returns void

  • Parameters

    • Rest ...args: any[]

    Returns any

  • Parameters

    • args_or_propertyName: string | any[]
    • Optional value: any

    Returns any

  • stealData(key?: string): object
  • Remove a specified datum from the object's data associations, without invoking the association's destroy handler.

    Parameters

    • Optional key: string

      name of the key

    Returns object

  • stealQdata(quark: number): object
  • This function gets back user data pointers stored via g_object_set_qdata() and removes the data from object without invoking its destroy() function (if any was set). Usually, calling this function is only required to update user data pointers with a destroy notifier, for example:

    void
    object_add_to_user_list (GObject *object,
    const gchar *new_string)
    {
    // the quark, naming the object data
    GQuark quark_string_list = g_quark_from_static_string ("my-string-list");
    // retrieve the old string list
    GList *list = g_object_steal_qdata (object, quark_string_list);

    // prepend new string
    list = g_list_prepend (list, g_strdup (new_string));
    // this changed 'list', so we need to set it again
    g_object_set_qdata_full (object, quark_string_list, list, free_string_list);
    }
    static void
    free_string_list (gpointer data)
    {
    GList *node, *list = data;

    for (node = list; node; node = node->next)
    g_free (node->data);
    g_list_free (list);
    }

    Using g_object_get_qdata() in the above example, instead of g_object_steal_qdata() would have left the destroy function set, and thus the partial string list would have been freed upon g_object_set_qdata_full().

    Parameters

    • quark: number

      A #GQuark, naming the user data pointer

    Returns object

  • thawNotify(): void
  • Reverts the effect of a previous call to g_object_freeze_notify(). The freeze count is decreased on object and when it reaches zero, queued "notify" signals are emitted.

    Duplicate notifications for each property are squashed so that at most one #GObject::notify signal is emitted for each property, in the reverse order in which they have been queued.

    It is an error to call this function when the freeze count is zero.

    Returns void

  • toXml(pathRoot: string): string
  • 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). To export a gegl graph, connect the internal output node to an output proxy (see #gegl_node_get_output_proxy.) and use the proxy node as the basis for the serialization.

    Parameters

    • pathRoot: string

      filesystem path to construct relative paths from.

    Returns string

  • toXmlFull(tail: Gegl.Node, pathRoot: string): string
  • Returns a freshly allocated \0 terminated string containing a XML serialization of a segment of a graph from head to tail nodes. If tail is %NULL then this behaves just like #gegl_node_to_xml.

    Parameters

    • tail: Gegl.Node

      a #GeglNode

    • pathRoot: string

      filesystem path to construct relative paths from.

    Returns string

  • unref(): void
  • Decreases the reference count of object. When its reference count drops to 0, the object is finalized (i.e. its memory is freed).

    If the pointer to the #GObject may be reused in future (for example, if it is an instance variable of another object), it is recommended to clear the pointer to %NULL rather than retain a dangling pointer to a potentially invalid #GObject instance. Use g_clear_object() for this.

    Returns void

  • watchClosure(closure: TClosure<any, any>): void
  • This function essentially limits the life time of the closure to the life time of the object. That is, when the object is finalized, the closure is invalidated by calling g_closure_invalidate() on it, in order to prevent invocations of the closure with a finalized (nonexisting) object. Also, g_object_ref() and g_object_unref() are added as marshal guards to the closure, to ensure that an extra reference count is held on object during invocation of the closure. Usually, this function will be called on closures that use this object as closure data.

    Parameters

    • closure: TClosure<any, any>

      #GClosure to watch

    Returns void

  • compatControl(what: number, data: object): number
  • Find the #GParamSpec with the given name for an interface. Generally, the interface vtable passed in as g_iface will be the default vtable from g_type_default_interface_ref(), or, if you know the interface has already been loaded, g_type_default_interface_peek().

    Parameters

    • gIface: TypeInterface

      any interface vtable for the interface, or the default vtable for the interface

    • propertyName: string

      name of a property to look up.

    Returns ParamSpec

  • Add a property to an interface; this is only useful for interfaces that are added to GObject-derived types. Adding a property to an interface forces all objects classes with that interface to have a compatible property. The compatible property could be a newly created #GParamSpec, but normally g_object_class_override_property() will be used so that the object class only needs to provide an implementation and inherits the property description, default value, bounds, and so forth from the interface property.

    This function is meant to be called from the interface's default vtable initialization function (the class_init member of #GTypeInfo.) It must not be called after after class_init has been called for any object types implementing this interface.

    If pspec is a floating reference, it will be consumed.

    Parameters

    • gIface: TypeInterface

      any interface vtable for the interface, or the default vtable for the interface.

    • pspec: ParamSpec

      the #GParamSpec for the new property

    Returns void

  • Lists the properties of an interface.Generally, the interface vtable passed in as g_iface will be the default vtable from g_type_default_interface_ref(), or, if you know the interface has already been loaded, g_type_default_interface_peek().

    Parameters

    • gIface: TypeInterface

      any interface vtable for the interface, or the default vtable for the interface

    Returns ParamSpec[]

  • The #GeglNode returned contains the graph described by the tree of stacks in the XML document. The tree is connected to the "output" pad of the returned node and thus can be used directly for processing.

    Parameters

    • path: string

      the path to a file on the local file system to be parsed.

    Returns Gegl.Node

  • newFromSerialized(chaindata: string, pathRoot: string): Gegl.Node
  • newFromXml(xmldata: string, pathRoot: string): Gegl.Node
  • The #GeglNode returned contains the graph described by the tree of stacks in the XML document. The tree is connected to the "output" pad of the returned node and thus can be used directly for processing.

    Parameters

    • xmldata: string

      a \0 terminated string containing XML data to be parsed.

    • pathRoot: string

      a file system path that relative paths in the XML will be resolved in relation to.

    Returns Gegl.Node

  • Creates a new instance of a #GObject subtype and sets its properties.

    Construction parameters (see %G_PARAM_CONSTRUCT, %G_PARAM_CONSTRUCT_ONLY) which are not explicitly specified are set to their default values.

    Parameters

    • objectType: GType<unknown>

      the type id of the #GObject subtype to instantiate

    • parameters: GObject.Parameter[]

      an array of #GParameter

    Returns GObject.Object

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