RenderNode

GskRenderNode is the basic block in a scene graph to be rendered using GskRenderer.

Each node has a parent, except the top-level node; each node may have children nodes.

Each node has an associated drawing surface, which has the size of the rectangle set when creating it.

Render nodes are meant to be transient; once they have been associated to a [class@Gsk.Renderer] it's safe to release any reference you have on them. All [class@Gsk.RenderNode]s are immutable, you can only specify their properties during construction.

class RenderNode {

protected

GskRenderNode* gskRenderNode;

protected

bool ownedRef;

GskRenderNode* getRenderNodeStruct(bool transferOwnership);

void* getStruct();

this(GskRenderNode* gskRenderNode, bool ownedRef);

~this();

static GType getType();

static RenderNode deserialize(Bytes bytes, GskParseErrorFunc errorFunc, void* userData);

void draw(Context cr);

void getBounds(Rect bounds);

GskRenderNodeType getNodeType();

alias doref = ref_;

RenderNode ref_();

Bytes serialize();

void unref();

bool writeToFile(string filename);

}

Constructors

this this(GskRenderNode* gskRenderNode, bool ownedRef): Sets our main struct and passes it to the parent class.

Destructor

~this ~this(): Undocumented in source.

Members

Aliases

doref alias doref = ref_: Undocumented in source.

Functions

draw void draw(Context cr): Draw the contents of @node to the given cairo context.
getBounds void getBounds(Rect bounds): Retrieves the boundaries of the @node.
getNodeType GskRenderNodeType getNodeType(): Returns the type of the @node.
getRenderNodeStruct GskRenderNode* getRenderNodeStruct(bool transferOwnership): Get the main Gtk struct
getStruct void* getStruct(): the main Gtk struct as a void*
ref_ RenderNode ref_(): Acquires a reference on the given GskRenderNode.
serialize Bytes serialize(): Serializes the @node for later deserialization via gsk_render_node_deserialize(). No guarantees are made about the format used other than that the same version of GTK will be able to deserialize the result of a call to gsk_render_node_serialize() and gsk_render_node_deserialize() will correctly reject files it cannot open that were created with previous versions of GTK.
unref void unref(): Releases a reference on the given GskRenderNode.
writeToFile bool writeToFile(string filename): This function is equivalent to calling gsk_render_node_serialize() followed by g_file_set_contents().

Static functions

deserialize RenderNode deserialize(Bytes bytes, GskParseErrorFunc errorFunc, void* userData): Loads data previously created via gsk_render_node_serialize().
getType GType getType()

Variables

gskRenderNode GskRenderNode* gskRenderNode;: the main Gtk struct
ownedRef bool ownedRef;: Undocumented in source.