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/**
* Type Definitions for Gjs (https://gjs.guide/)
*
* These type definitions are automatically generated, do not edit them by hand.
* If you found a bug fix it in `ts-for-gir` or create a bug report on https://github.com/gjsify/ts-for-gir
*
* The based EJS template file is used for the generated .d.ts file of each GIR module like Gtk-4.0, GObject-2.0, ...
*/
declare module 'gi://Gsk?version=4.0' {
// Module dependencies
import type Graphene from 'gi://Graphene?version=1.0';
import type GObject from 'gi://GObject?version=2.0';
import type GLib from 'gi://GLib?version=2.0';
import type Gdk from 'gi://Gdk?version=4.0';
import type cairo from 'cairo';
import type PangoCairo from 'gi://PangoCairo?version=1.0';
import type Pango from 'gi://Pango?version=1.0';
import type HarfBuzz from 'gi://HarfBuzz?version=0.0';
import type freetype2 from 'gi://freetype2?version=2.0';
import type Gio from 'gi://Gio?version=2.0';
import type GModule from 'gi://GModule?version=2.0';
import type GdkPixbuf from 'gi://GdkPixbuf?version=2.0';
export namespace Gsk {
/**
* Gsk-4.0
*/
/**
* The blend modes available for render nodes.
*
* The implementation of each blend mode is deferred to the
* rendering pipeline.
*
* See for more information
* on blending and blend modes.
*/
/**
* The blend modes available for render nodes.
*
* The implementation of each blend mode is deferred to the
* rendering pipeline.
*
* See for more information
* on blending and blend modes.
*/
export namespace BlendMode {
export const $gtype: GObject.GType;
}
enum BlendMode {
/**
* The default blend mode, which specifies no blending
*/
DEFAULT,
/**
* The source color is multiplied by the destination
* and replaces the destination
*/
MULTIPLY,
/**
* Multiplies the complements of the destination and source
* color values, then complements the result.
*/
SCREEN,
/**
* Multiplies or screens the colors, depending on the
* destination color value. This is the inverse of hard-list
*/
OVERLAY,
/**
* Selects the darker of the destination and source colors
*/
DARKEN,
/**
* Selects the lighter of the destination and source colors
*/
LIGHTEN,
/**
* Brightens the destination color to reflect the source color
*/
COLOR_DODGE,
/**
* Darkens the destination color to reflect the source color
*/
COLOR_BURN,
/**
* Multiplies or screens the colors, depending on the source color value
*/
HARD_LIGHT,
/**
* Darkens or lightens the colors, depending on the source color value
*/
SOFT_LIGHT,
/**
* Subtracts the darker of the two constituent colors from the lighter color
*/
DIFFERENCE,
/**
* Produces an effect similar to that of the difference mode but lower in contrast
*/
EXCLUSION,
/**
* Creates a color with the hue and saturation of the source color and the luminosity of the destination color
*/
COLOR,
/**
* Creates a color with the hue of the source color and the saturation and luminosity of the destination color
*/
HUE,
/**
* Creates a color with the saturation of the source color and the hue and luminosity of the destination color
*/
SATURATION,
/**
* Creates a color with the luminosity of the source color and the hue and saturation of the destination color
*/
LUMINOSITY,
}
/**
* The corner indices used by `GskRoundedRect`.
*/
/**
* The corner indices used by `GskRoundedRect`.
*/
export namespace Corner {
export const $gtype: GObject.GType;
}
enum Corner {
/**
* The top left corner
*/
TOP_LEFT,
/**
* The top right corner
*/
TOP_RIGHT,
/**
* The bottom right corner
*/
BOTTOM_RIGHT,
/**
* The bottom left corner
*/
BOTTOM_LEFT,
}
/**
* Specifies how paths are filled.
*
* Whether or not a point is included in the fill is determined by taking
* a ray from that point to infinity and looking at intersections with the
* path. The ray can be in any direction, as long as it doesn't pass through
* the end point of a segment or have a tricky intersection such as
* intersecting tangent to the path.
*
* (Note that filling is not actually implemented in this way. This
* is just a description of the rule that is applied.)
*
* New entries may be added in future versions.
*/
/**
* Specifies how paths are filled.
*
* Whether or not a point is included in the fill is determined by taking
* a ray from that point to infinity and looking at intersections with the
* path. The ray can be in any direction, as long as it doesn't pass through
* the end point of a segment or have a tricky intersection such as
* intersecting tangent to the path.
*
* (Note that filling is not actually implemented in this way. This
* is just a description of the rule that is applied.)
*
* New entries may be added in future versions.
*/
export namespace FillRule {
export const $gtype: GObject.GType;
}
enum FillRule {
/**
* If the path crosses the ray from
* left-to-right, counts +1. If the path crosses the ray
* from right to left, counts -1. (Left and right are determined
* from the perspective of looking along the ray from the starting
* point.) If the total count is non-zero, the point will be filled.
*/
WINDING,
/**
* Counts the total number of
* intersections, without regard to the orientation of the contour. If
* the total number of intersections is odd, the point will be
* filled.
*/
EVEN_ODD,
}
/**
* Defines the types of the uniforms that `GskGLShaders` declare.
*
* It defines both what the type is called in the GLSL shader
* code, and what the corresponding C type is on the Gtk side.
*/
/**
* Defines the types of the uniforms that `GskGLShaders` declare.
*
* It defines both what the type is called in the GLSL shader
* code, and what the corresponding C type is on the Gtk side.
*/
export namespace GLUniformType {
export const $gtype: GObject.GType;
}
enum GLUniformType {
/**
* No type, used for uninitialized or unspecified values.
*/
NONE,
/**
* A float uniform
*/
FLOAT,
/**
* A GLSL int / gint32 uniform
*/
INT,
/**
* A GLSL uint / guint32 uniform
*/
UINT,
/**
* A GLSL bool / gboolean uniform
*/
BOOL,
/**
* A GLSL vec2 / graphene_vec2_t uniform
*/
VEC2,
/**
* A GLSL vec3 / graphene_vec3_t uniform
*/
VEC3,
/**
* A GLSL vec4 / graphene_vec4_t uniform
*/
VEC4,
}
/**
* Specifies how to render the start and end points of contours or
* dashes when stroking.
*
* The default line cap style is `GSK_LINE_CAP_BUTT`.
*
* New entries may be added in future versions.
*
*
*
*
*
*
* GSK_LINE_CAP_BUTT, GSK_LINE_CAP_ROUND, GSK_LINE_CAP_SQUARE
*
*/
/**
* Specifies how to render the start and end points of contours or
* dashes when stroking.
*
* The default line cap style is `GSK_LINE_CAP_BUTT`.
*
* New entries may be added in future versions.
*
*
*
*
*
*
* GSK_LINE_CAP_BUTT, GSK_LINE_CAP_ROUND, GSK_LINE_CAP_SQUARE
*
*/
export namespace LineCap {
export const $gtype: GObject.GType;
}
enum LineCap {
/**
* Start and stop the line exactly at the start
* and end point
*/
BUTT,
/**
* Use a round ending, the center of the circle
* is the start or end point
*/
ROUND,
/**
* use squared ending, the center of the square
* is the start or end point
*/
SQUARE,
}
/**
* Specifies how to render the junction of two lines when stroking.
*
* The default line join style is `GSK_LINE_JOIN_MITER`.
*
* New entries may be added in future versions.
*
*
*
*
*
*
* GSK_LINE_JOINT_MITER, GSK_LINE_JOINT_ROUND, GSK_LINE_JOIN_BEVEL
*
*/
/**
* Specifies how to render the junction of two lines when stroking.
*
* The default line join style is `GSK_LINE_JOIN_MITER`.
*
* New entries may be added in future versions.
*
*
*
*
*
*
* GSK_LINE_JOINT_MITER, GSK_LINE_JOINT_ROUND, GSK_LINE_JOIN_BEVEL
*
*/
export namespace LineJoin {
export const $gtype: GObject.GType;
}
enum LineJoin {
/**
* Use a sharp angled corner
*/
MITER,
/**
* Use a round join, the center of the circle is
* the join point
*/
ROUND,
/**
* use a cut-off join, the join is cut off at half
* the line width from the joint point
*/
BEVEL,
}
/**
* The mask modes available for mask nodes.
*/
/**
* The mask modes available for mask nodes.
*/
export namespace MaskMode {
export const $gtype: GObject.GType;
}
enum MaskMode {
/**
* Use the alpha channel of the mask
*/
ALPHA,
/**
* Use the inverted alpha channel of the mask
*/
INVERTED_ALPHA,
/**
* Use the luminance of the mask,
* multiplied by mask alpha
*/
LUMINANCE,
/**
* Use the inverted luminance of the mask,
* multiplied by mask alpha
*/
INVERTED_LUMINANCE,
}
/**
* Used to pick one of the four tangents at a given point on the path.
*
* Note that the directions for `GSK_PATH_FROM_START/``GSK_PATH_TO_END` and
* `GSK_PATH_TO_START/``GSK_PATH_FROM_END` will coincide for smooth points.
* Only sharp turns will exhibit four different directions.
*
*
*
*
*
*/
/**
* Used to pick one of the four tangents at a given point on the path.
*
* Note that the directions for `GSK_PATH_FROM_START/``GSK_PATH_TO_END` and
* `GSK_PATH_TO_START/``GSK_PATH_FROM_END` will coincide for smooth points.
* Only sharp turns will exhibit four different directions.
*
*
*
*
*
*/
export namespace PathDirection {
export const $gtype: GObject.GType;
}
enum PathDirection {
/**
* The tangent in path direction of the incoming side
* of the path
*/
FROM_START,
/**
* The tangent against path direction of the incoming side
* of the path
*/
TO_START,
/**
* The tangent in path direction of the outgoing side
* of the path
*/
TO_END,
/**
* The tangent against path direction of the outgoing
* side of the path
*/
FROM_END,
}
/**
* Describes the segments of a `GskPath`.
*
* More values may be added in the future.
*/
/**
* Describes the segments of a `GskPath`.
*
* More values may be added in the future.
*/
export namespace PathOperation {
export const $gtype: GObject.GType;
}
enum PathOperation {
/**
* A move-to operation, with 1 point describing the target point.
*/
MOVE,
/**
* A close operation ending the current contour with a line back
* to the starting point. Two points describe the start and end of the line.
*/
CLOSE,
/**
* A line-to operation, with 2 points describing the start and
* end point of a straight line.
*/
LINE,
/**
* A curve-to operation describing a quadratic Bézier curve
* with 3 points describing the start point, the control point and the end
* point of the curve.
*/
QUAD,
/**
* A curve-to operation describing a cubic Bézier curve with 4
* points describing the start point, the two control points and the end point
* of the curve.
*/
CUBIC,
/**
* A rational quadratic Bézier curve with 3 points describing
* the start point, control point and end point of the curve. A weight for the
* curve will be passed, too.
*/
CONIC,
}
/**
* The type of a node determines what the node is rendering.
*/
/**
* The type of a node determines what the node is rendering.
*/
export namespace RenderNodeType {
export const $gtype: GObject.GType;
}
enum RenderNodeType {
/**
* Error type. No node will ever have this type.
*/
NOT_A_RENDER_NODE,
/**
* A node containing a stack of children
*/
CONTAINER_NODE,
/**
* A node drawing a `cairo_surface_t`
*/
CAIRO_NODE,
/**
* A node drawing a single color rectangle
*/
COLOR_NODE,
/**
* A node drawing a linear gradient
*/
LINEAR_GRADIENT_NODE,
/**
* A node drawing a repeating linear gradient
*/
REPEATING_LINEAR_GRADIENT_NODE,
/**
* A node drawing a radial gradient
*/
RADIAL_GRADIENT_NODE,
/**
* A node drawing a repeating radial gradient
*/
REPEATING_RADIAL_GRADIENT_NODE,
/**
* A node drawing a conic gradient
*/
CONIC_GRADIENT_NODE,
/**
* A node stroking a border around an area
*/
BORDER_NODE,
/**
* A node drawing a `GdkTexture`
*/
TEXTURE_NODE,
/**
* A node drawing an inset shadow
*/
INSET_SHADOW_NODE,
/**
* A node drawing an outset shadow
*/
OUTSET_SHADOW_NODE,
/**
* A node that renders its child after applying a matrix transform
*/
TRANSFORM_NODE,
/**
* A node that changes the opacity of its child
*/
OPACITY_NODE,
/**
* A node that applies a color matrix to every pixel
*/
COLOR_MATRIX_NODE,
/**
* A node that repeats the child's contents
*/
REPEAT_NODE,
/**
* A node that clips its child to a rectangular area
*/
CLIP_NODE,
/**
* A node that clips its child to a rounded rectangle
*/
ROUNDED_CLIP_NODE,
/**
* A node that draws a shadow below its child
*/
SHADOW_NODE,
/**
* A node that blends two children together
*/
BLEND_NODE,
/**
* A node that cross-fades between two children
*/
CROSS_FADE_NODE,
/**
* A node containing a glyph string
*/
TEXT_NODE,
/**
* A node that applies a blur
*/
BLUR_NODE,
/**
* Debug information that does not affect the rendering
*/
DEBUG_NODE,
/**
* A node that uses OpenGL fragment shaders to render
*/
GL_SHADER_NODE,
/**
* A node drawing a `GdkTexture` scaled and filtered.
*/
TEXTURE_SCALE_NODE,
/**
* A node that masks one child with another.
*/
MASK_NODE,
/**
* A node that fills a path.
*/
FILL_NODE,
/**
* A node that strokes a path.
*/
STROKE_NODE,
/**
* A node that possibly redirects part of the scene graph to a subsurface.
*/
SUBSURFACE_NODE,
}
/**
* The filters used when scaling texture data.
*
* The actual implementation of each filter is deferred to the
* rendering pipeline.
*/
/**
* The filters used when scaling texture data.
*
* The actual implementation of each filter is deferred to the
* rendering pipeline.
*/
export namespace ScalingFilter {
export const $gtype: GObject.GType;
}
enum ScalingFilter {
/**
* linear interpolation filter
*/
LINEAR,
/**
* nearest neighbor interpolation filter
*/
NEAREST,
/**
* linear interpolation along each axis,
* plus mipmap generation, with linear interpolation along the mipmap
* levels
*/
TRILINEAR,
}
/**
* Errors that can happen during (de)serialization.
*/
class SerializationError extends GLib.Error {
static $gtype: GObject.GType;
// Static fields
/**
* The format can not be identified
*/
static UNSUPPORTED_FORMAT: number;
/**
* The version of the data is not
* understood
*/
static UNSUPPORTED_VERSION: number;
/**
* The given data may not exist in
* a proper serialization
*/
static INVALID_DATA: number;
// Constructors
constructor(options: { message: string; code: number });
_init(...args: any[]): void;
// Static methods
/**
* Registers an error quark for [class`Gsk`.RenderNode] errors.
*/
static quark(): GLib.Quark;
}
/**
* The categories of matrices relevant for GSK and GTK.
*
* Note that any category includes matrices of all later categories.
* So if you want to for example check if a matrix is a 2D matrix,
* `category >= GSK_TRANSFORM_CATEGORY_2D` is the way to do this.
*
* Also keep in mind that rounding errors may cause matrices to not
* conform to their categories. Otherwise, matrix operations done via
* multiplication will not worsen categories. So for the matrix
* multiplication `C = A * B`, `category(C) = MIN (category(A), category(B))`.
*/
/**
* The categories of matrices relevant for GSK and GTK.
*
* Note that any category includes matrices of all later categories.
* So if you want to for example check if a matrix is a 2D matrix,
* `category >= GSK_TRANSFORM_CATEGORY_2D` is the way to do this.
*
* Also keep in mind that rounding errors may cause matrices to not
* conform to their categories. Otherwise, matrix operations done via
* multiplication will not worsen categories. So for the matrix
* multiplication `C = A * B`, `category(C) = MIN (category(A), category(B))`.
*/
export namespace TransformCategory {
export const $gtype: GObject.GType;
}
enum TransformCategory {
/**
* The category of the matrix has not been
* determined.
*/
UNKNOWN,
/**
* Analyzing the matrix concluded that it does
* not fit in any other category.
*/
ANY,
/**
* The matrix is a 3D matrix. This means that
* the w column (the last column) has the values (0, 0, 0, 1).
*/
'3D',
/**
* The matrix is a 2D matrix. This is equivalent
* to graphene_matrix_is_2d() returning %TRUE. In particular, this
* means that Cairo can deal with the matrix.
*/
'2D',
/**
* The matrix is a combination of 2D scale
* and 2D translation operations. In particular, this means that any
* rectangle can be transformed exactly using this matrix.
*/
'2D_AFFINE',
/**
* The matrix is a 2D translation.
*/
'2D_TRANSLATE',
/**
* The matrix is the identity matrix.
*/
IDENTITY,
}
/**
* Constructs a path from a serialized form.
*
* The string is expected to be in (a superset of)
* [SVG path syntax](https://www.w3.org/TR/SVG11/paths.html#PathData),
* as e.g. produced by [method`Gsk`.Path.to_string].
*
* A high-level summary of the syntax:
*
* - `M x y` Move to `(x, y)`
* - `L x y` Add a line from the current point to `(x, y)`
* - `Q x1 y1 x2 y2` Add a quadratic Bézier from the current point to `(x2, y2)`, with control point `(x1, y1)`
* - `C x1 y1 x2 y2 x3 y3` Add a cubic Bézier from the current point to `(x3, y3)`, with control points `(x1, y1)` and `(x2, y2)`
* - `Z` Close the contour by drawing a line back to the start point
* - `H x` Add a horizontal line from the current point to the given x value
* - `V y` Add a vertical line from the current point to the given y value
* - `T x2 y2` Add a quadratic Bézier, using the reflection of the previous segments' control point as control point
* - `S x2 y2 x3 y3` Add a cubic Bézier, using the reflection of the previous segments' second control point as first control point
* - `A rx ry r l s x y` Add an elliptical arc from the current point to `(x, y)` with radii rx and ry. See the SVG documentation for how the other parameters influence the arc.
* - `O x1 y1 x2 y2 w` Add a rational quadratic Bézier from the current point to `(x2, y2)` with control point `(x1, y1)` and weight `w`.
*
* All the commands have lowercase variants that interpret coordinates
* relative to the current point.
*
* The `O` command is an extension that is not supported in SVG.
* @param string a string
* @returns a new `GskPath`, or `NULL` if @string could not be parsed
*/
function path_parse(string: string): Path | null;
/**
* Registers an error quark for [class`Gsk`.RenderNode] errors.
* @returns the error quark
*/
function serialization_error_quark(): GLib.Quark;
/**
* Checks if two strokes are identical.
* @param stroke1 the first stroke
* @param stroke2 the second stroke
* @returns true if the two strokes are equal, false otherwise
*/
function stroke_equal(stroke1?: any | null, stroke2?: any | null): boolean;
/**
* Parses a given into a transform.
*
* Strings printed via [method`Gsk`.Transform.to_string]
* can be read in again successfully using this function.
*
* If `string` does not describe a valid transform, false
* is returned and `NULL` is put in `out_transform`.
* @param string the string to parse
* @returns true if @string described a valid transform
*/
function transform_parse(string: string): [boolean, Transform];
/**
* Retrieves the render node stored inside a `GValue`,
* and acquires a reference to it.
* @param value a [struct@GObject.Value] initialized with type `GSK_TYPE_RENDER_NODE`
* @returns the render node
*/
function value_dup_render_node(value: GObject.Value | any): RenderNode | null;
/**
* Retrieves the render node stored inside a `GValue`.
* @param value a `GValue` initialized with type `GSK_TYPE_RENDER_NODE`
* @returns the render node
*/
function value_get_render_node(value: GObject.Value | any): RenderNode | null;
/**
* Stores the given render node inside a `GValue`.
*
* The [struct`GObject`.Value] will acquire a reference
* to the render node.
* @param value a [struct@GObject.Value] initialized with type `GSK_TYPE_RENDER_NODE`
* @param node a render node
*/
function value_set_render_node(value: GObject.Value | any, node: RenderNode): void;
/**
* Stores the given render node inside a `GValue`.
*
* This function transfers the ownership of the
* render node to the `GValue`.
* @param value a [struct@GObject.Value] initialized with type `GSK_TYPE_RENDER_NODE`
* @param node a render node
*/
function value_take_render_node(value: GObject.Value | any, node?: RenderNode | null): void;
interface ParseErrorFunc {
(start: ParseLocation, end: ParseLocation, error: GLib.Error): void;
}
interface PathForeachFunc {
(op: PathOperation, pts: Graphene.Point, n_pts: number, weight: number): boolean;
}
/**
* Flags that can be passed to gsk_path_foreach() to influence what
* kinds of operations the path is decomposed into.
*
* By default, [method`Gsk`.Path.foreach] will only emit a path with all
* operations flattened to straight lines to allow for maximum compatibility.
* The only operations emitted will be `GSK_PATH_MOVE`, `GSK_PATH_LINE` and
* `GSK_PATH_CLOSE`.
*/
/**
* Flags that can be passed to gsk_path_foreach() to influence what
* kinds of operations the path is decomposed into.
*
* By default, [method`Gsk`.Path.foreach] will only emit a path with all
* operations flattened to straight lines to allow for maximum compatibility.
* The only operations emitted will be `GSK_PATH_MOVE`, `GSK_PATH_LINE` and
* `GSK_PATH_CLOSE`.
*/
export namespace PathForeachFlags {
export const $gtype: GObject.GType;
}
enum PathForeachFlags {
/**
* The default behavior, only allow lines.
*/
ONLY_LINES,
/**
* Allow emission of `GSK_PATH_QUAD` operations
*/
QUAD,
/**
* Allow emission of `GSK_PATH_CUBIC` operations.
*/
CUBIC,
/**
* Allow emission of `GSK_PATH_CONIC` operations.
*/
CONIC,
}
/**
* A render node applying a blending function between its two child nodes.
*/
class BlendNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](bottom: RenderNode, top: RenderNode, blend_mode: BlendMode): BlendNode;
// Methods
/**
* Retrieves the blend mode used by `node`.
* @returns the blend mode
*/
get_blend_mode(): BlendMode;
/**
* Retrieves the bottom `GskRenderNode` child of the `node`.
* @returns the bottom child node
*/
get_bottom_child(): RenderNode;
/**
* Retrieves the top `GskRenderNode` child of the `node`.
* @returns the top child node
*/
get_top_child(): RenderNode;
}
/**
* A render node applying a blur effect to its single child.
*/
class BlurNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](child: RenderNode, radius: number): BlurNode;
// Methods
/**
* Retrieves the child `GskRenderNode` of the blur `node`.
* @returns the blurred child node
*/
get_child(): RenderNode;
/**
* Retrieves the blur radius of the `node`.
* @returns the blur radius
*/
get_radius(): number;
}
/**
* A render node for a border.
*/
class BorderNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](outline: RoundedRect, border_width: number[], border_color: Gdk.RGBA[]): BorderNode;
// Methods
/**
* Retrieves the colors of the border.
* @returns an array of 4 `GdkRGBA` structs for the top, right, bottom and left color of the border
*/
get_colors(): Gdk.RGBA[];
/**
* Retrieves the outline of the border.
* @returns the outline of the border
*/
get_outline(): RoundedRect;
/**
* Retrieves the stroke widths of the border.
* @returns an array of 4 floats for the top, right, bottom and left stroke width of the border, respectively
*/
get_widths(): number[];
}
namespace BroadwayRenderer {
// Constructor properties interface
interface ConstructorProps extends Renderer.ConstructorProps {}
}
/**
* A Broadway based renderer.
*
* See [class`Gsk`.Renderer].
*/
class BroadwayRenderer extends Renderer {
static $gtype: GObject.GType;
// Constructors
constructor(properties?: Partial, ...args: any[]);
_init(...args: any[]): void;
static ['new'](): BroadwayRenderer;
}
/**
* A render node for a Cairo surface.
*/
class CairoNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](bounds: Graphene.Rect): CairoNode;
// Methods
/**
* Creates a Cairo context for drawing using the surface associated
* to the render node.
*
* If no surface exists yet, a surface will be created optimized for
* rendering to `renderer`.
* @returns a Cairo context used for drawing; use cairo_destroy() when done drawing
*/
get_draw_context(): cairo.Context;
/**
* Retrieves the Cairo surface used by the render node.
* @returns a Cairo surface
*/
get_surface(): cairo.Surface;
}
namespace CairoRenderer {
// Constructor properties interface
interface ConstructorProps extends Renderer.ConstructorProps {}
}
/**
* Renders a GSK rendernode tree with cairo.
*
* Since it is using cairo, this renderer cannot support
* 3D transformations.
*/
class CairoRenderer extends Renderer {
static $gtype: GObject.GType;
// Constructors
constructor(properties?: Partial, ...args: any[]);
_init(...args: any[]): void;
static ['new'](): CairoRenderer;
}
/**
* A render node applying a rectangular clip to its single child node.
*/
class ClipNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](child: RenderNode, clip: Graphene.Rect): ClipNode;
// Methods
/**
* Gets the child node that is getting clipped by the given `node`.
* @returns The child that is getting clipped
*/
get_child(): RenderNode;
/**
* Retrieves the clip rectangle for `node`.
* @returns a clip rectangle
*/
get_clip(): Graphene.Rect;
}
/**
* A render node controlling the color matrix of its single child node.
*/
class ColorMatrixNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](
child: RenderNode,
color_matrix: Graphene.Matrix,
color_offset: Graphene.Vec4,
): ColorMatrixNode;
// Methods
/**
* Gets the child node that is getting its colors modified by the given `node`.
* @returns The child that is getting its colors modified
*/
get_child(): RenderNode;
/**
* Retrieves the color matrix used by the `node`.
* @returns a 4x4 color matrix
*/
get_color_matrix(): Graphene.Matrix;
/**
* Retrieves the color offset used by the `node`.
* @returns a color vector
*/
get_color_offset(): Graphene.Vec4;
}
/**
* A render node for a solid color.
*/
class ColorNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](rgba: Gdk.RGBA, bounds: Graphene.Rect): ColorNode;
// Methods
/**
* Retrieves the color of the given `node`.
*
* The value returned by this function will not be correct
* if the render node was created for a non-sRGB color.
* @returns the color of the node
*/
get_color(): Gdk.RGBA;
}
/**
* A render node for a conic gradient.
*/
class ConicGradientNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](
bounds: Graphene.Rect,
center: Graphene.Point,
rotation: number,
color_stops: ColorStop[],
): ConicGradientNode;
// Methods
/**
* Retrieves the angle for the gradient in radians, normalized in [0, 2 * PI].
*
* The angle is starting at the top and going clockwise, as expressed
* in the css specification:
*
* angle = 90 - gsk_conic_gradient_node_get_rotation()
* @returns the angle for the gradient
*/
get_angle(): number;
/**
* Retrieves the center pointer for the gradient.
* @returns the center point for the gradient
*/
get_center(): Graphene.Point;
/**
* Retrieves the color stops in the gradient.
* @returns the color stops in the gradient
*/
get_color_stops(): ColorStop[];
/**
* Retrieves the number of color stops in the gradient.
* @returns the number of color stops
*/
get_n_color_stops(): number;
/**
* Retrieves the rotation for the gradient in degrees.
* @returns the rotation for the gradient
*/
get_rotation(): number;
}
/**
* A render node that can contain other render nodes.
*/
class ContainerNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](children: RenderNode[]): ContainerNode;
// Methods
/**
* Gets one of the children of `container`.
* @param idx the position of the child to get
* @returns the @idx'th child of @container
*/
get_child(idx: number): RenderNode;
/**
* Retrieves the number of direct children of `node`.
* @returns the number of children of the `GskRenderNode`
*/
get_n_children(): number;
}
/**
* A render node cross fading between two child nodes.
*/
class CrossFadeNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](start: RenderNode, end: RenderNode, progress: number): CrossFadeNode;
// Methods
/**
* Retrieves the child `GskRenderNode` at the end of the cross-fade.
* @returns a `GskRenderNode`
*/
get_end_child(): RenderNode;
/**
* Retrieves the progress value of the cross fade.
* @returns the progress value, between 0 and 1
*/
get_progress(): number;
/**
* Retrieves the child `GskRenderNode` at the beginning of the cross-fade.
* @returns a `GskRenderNode`
*/
get_start_child(): RenderNode;
}
/**
* A render node that emits a debugging message when drawing its
* child node.
*/
class DebugNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](child: RenderNode, message: string): DebugNode;
// Methods
/**
* Gets the child node that is getting drawn by the given `node`.
* @returns the child `GskRenderNode`
*/
get_child(): RenderNode;
/**
* Gets the debug message that was set on this node
* @returns The debug message
*/
get_message(): string;
}
/**
* A render node filling the area given by [struct`Gsk`.Path]
* and [enum`Gsk`.FillRule] with the child node.
*/
class FillNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](child: RenderNode, path: Path, fill_rule: FillRule): FillNode;
// Methods
/**
* Gets the child node that is getting drawn by the given `node`.
* @returns The child that is getting drawn
*/
get_child(): RenderNode;
/**
* Retrieves the fill rule used to determine how the path is filled.
* @returns a `GskFillRule`
*/
get_fill_rule(): FillRule;
/**
* Retrieves the path used to describe the area filled with the contents of
* the `node`.
* @returns a `GskPath`
*/
get_path(): Path;
}
namespace GLRenderer {
// Constructor properties interface
interface ConstructorProps extends Renderer.ConstructorProps {}
}
/**
* Renders a GSK rendernode tree with OpenGL.
*
* See [class`Gsk`.Renderer].
*/
class GLRenderer extends Renderer {
static $gtype: GObject.GType;
// Constructors
constructor(properties?: Partial, ...args: any[]);
_init(...args: any[]): void;
static ['new'](): GLRenderer;
}
namespace GLShader {
// Constructor properties interface
interface ConstructorProps extends GObject.Object.ConstructorProps {
resource: string;
source: GLib.Bytes;
}
}
/**
* Implements a fragment shader using GLSL.
*
* A fragment shader gets the coordinates being rendered as input and
* produces the pixel values for that particular pixel. Additionally,
* the shader can declare a set of other input arguments, called
* uniforms (as they are uniform over all the calls to your shader in
* each instance of use). A shader can also receive up to 4
* textures that it can use as input when producing the pixel data.
*
* `GskGLShader` is usually used with gtk_snapshot_push_gl_shader()
* to produce a [class`Gsk`.GLShaderNode] in the rendering hierarchy,
* and then its input textures are constructed by rendering the child
* nodes to textures before rendering the shader node itself. (You can
* pass texture nodes as children if you want to directly use a texture
* as input).
*
* The actual shader code is GLSL code that gets combined with
* some other code into the fragment shader. Since the exact
* capabilities of the GPU driver differs between different OpenGL
* drivers and hardware, GTK adds some defines that you can use
* to ensure your GLSL code runs on as many drivers as it can.
*
* If the OpenGL driver is GLES, then the shader language version
* is set to 100, and GSK_GLES will be defined in the shader.
*
* Otherwise, if the OpenGL driver does not support the 3.2 core profile,
* then the shader will run with language version 110 for GL2 and 130 for GL3,
* and GSK_LEGACY will be defined in the shader.
*
* If the OpenGL driver supports the 3.2 code profile, it will be used,
* the shader language version is set to 150, and GSK_GL3 will be defined
* in the shader.
*
* The main function the shader must implement is:
*
* ```glsl
* void mainImage(out vec4 fragColor,
* in vec2 fragCoord,
* in vec2 resolution,
* in vec2 uv)
* ```
*
* Where the input `fragCoord` is the coordinate of the pixel we're
* currently rendering, relative to the boundary rectangle that was
* specified in the `GskGLShaderNode`, and `resolution` is the width and
* height of that rectangle. This is in the typical GTK coordinate
* system with the origin in the top left. `uv` contains the u and v
* coordinates that can be used to index a texture at the
* corresponding point. These coordinates are in the [0..1]x[0..1]
* region, with 0, 0 being in the lower left corder (which is typical
* for OpenGL).
*
* The output `fragColor` should be a RGBA color (with
* premultiplied alpha) that will be used as the output for the
* specified pixel location. Note that this output will be
* automatically clipped to the clip region of the glshader node.
*
* In addition to the function arguments the shader can define
* up to 4 uniforms for textures which must be called u_textureN
* (i.e. u_texture1 to u_texture4) as well as any custom uniforms
* you want of types int, uint, bool, float, vec2, vec3 or vec4.
*
* All textures sources contain premultiplied alpha colors, but if some
* there are outer sources of colors there is a gsk_premultiply() helper
* to compute premultiplication when needed.
*
* Note that GTK parses the uniform declarations, so each uniform has to
* be on a line by itself with no other code, like so:
*
* ```glsl
* uniform float u_time;
* uniform vec3 u_color;
* uniform sampler2D u_texture1;
* uniform sampler2D u_texture2;
* ```
*
* GTK uses the "gsk" namespace in the symbols it uses in the
* shader, so your code should not use any symbols with the prefix gsk
* or GSK. There are some helper functions declared that you can use:
*
* ```glsl
* vec4 GskTexture(sampler2D sampler, vec2 texCoords);
* ```
*
* This samples a texture (e.g. u_texture1) at the specified
* coordinates, and contains some helper ifdefs to ensure that
* it works on all OpenGL versions.
*
* You can compile the shader yourself using [method`Gsk`.GLShader.compile],
* otherwise the GSK renderer will do it when it handling the glshader
* node. If errors occurs, the returned `error` will include the glsl
* sources, so you can see what GSK was passing to the compiler. You
* can also set GSK_DEBUG=shaders in the environment to see the sources
* and other relevant information about all shaders that GSK is handling.
*
* # An example shader
*
* ```glsl
* uniform float position;
* uniform sampler2D u_texture1;
* uniform sampler2D u_texture2;
*
* void mainImage(out vec4 fragColor,
* in vec2 fragCoord,
* in vec2 resolution,
* in vec2 uv) {
* vec4 source1 = GskTexture(u_texture1, uv);
* vec4 source2 = GskTexture(u_texture2, uv);
*
* fragColor = position * source1 + (1.0 - position) * source2;
* }
* ```
*/
class GLShader extends GObject.Object {
static $gtype: GObject.GType;
// Properties
/**
* Resource containing the source code for the shader.
*
* If the shader source is not coming from a resource, this
* will be %NULL.
*/
get resource(): string;
/**
* The source code for the shader, as a `GBytes`.
*/
get source(): GLib.Bytes;
// Constructors
constructor(properties?: Partial, ...args: any[]);
_init(...args: any[]): void;
static new_from_bytes(sourcecode: GLib.Bytes | Uint8Array): GLShader;
static new_from_resource(resource_path: string): GLShader;
// Methods
/**
* Tries to compile the `shader` for the given `renderer`.
*
* If there is a problem, this function returns %FALSE and reports
* an error. You should use this function before relying on the shader
* for rendering and use a fallback with a simpler shader or without
* shaders if it fails.
*
* Note that this will modify the rendering state (for example
* change the current GL context) and requires the renderer to be
* set up. This means that the widget has to be realized. Commonly you
* want to call this from the realize signal of a widget, or during
* widget snapshot.
* @param renderer a `GskRenderer`
* @returns %TRUE on success, %FALSE if an error occurred
*/
compile(renderer: Renderer): boolean;
/**
* Looks for a uniform by the name `name,` and returns the index
* of the uniform, or -1 if it was not found.
* @param name uniform name
* @returns The index of the uniform, or -1
*/
find_uniform_by_name(name: string): number;
/**
* Gets the value of the uniform `idx` in the `args` block.
*
* The uniform must be of bool type.
* @param args uniform arguments
* @param idx index of the uniform
* @returns The value
*/
get_arg_bool(args: GLib.Bytes | Uint8Array, idx: number): boolean;
/**
* Gets the value of the uniform `idx` in the `args` block.
*
* The uniform must be of float type.
* @param args uniform arguments
* @param idx index of the uniform
* @returns The value
*/
get_arg_float(args: GLib.Bytes | Uint8Array, idx: number): number;
/**
* Gets the value of the uniform `idx` in the `args` block.
*
* The uniform must be of int type.
* @param args uniform arguments
* @param idx index of the uniform
* @returns The value
*/
get_arg_int(args: GLib.Bytes | Uint8Array, idx: number): number;
/**
* Gets the value of the uniform `idx` in the `args` block.
*
* The uniform must be of uint type.
* @param args uniform arguments
* @param idx index of the uniform
* @returns The value
*/
get_arg_uint(args: GLib.Bytes | Uint8Array, idx: number): number;
/**
* Gets the value of the uniform `idx` in the `args` block.
*
* The uniform must be of vec2 type.
* @param args uniform arguments
* @param idx index of the uniform
* @param out_value location to store the uniform value in
*/
get_arg_vec2(args: GLib.Bytes | Uint8Array, idx: number, out_value: Graphene.Vec2): void;
/**
* Gets the value of the uniform `idx` in the `args` block.
*
* The uniform must be of vec3 type.
* @param args uniform arguments
* @param idx index of the uniform
* @param out_value location to store the uniform value in
*/
get_arg_vec3(args: GLib.Bytes | Uint8Array, idx: number, out_value: Graphene.Vec3): void;
/**
* Gets the value of the uniform `idx` in the `args` block.
*
* The uniform must be of vec4 type.
* @param args uniform arguments
* @param idx index of the uniform
* @param out_value location to store set the uniform value in
*/
get_arg_vec4(args: GLib.Bytes | Uint8Array, idx: number, out_value: Graphene.Vec4): void;
/**
* Get the size of the data block used to specify arguments for this shader.
* @returns The size of the data block
*/
get_args_size(): number;
/**
* Returns the number of textures that the shader requires.
*
* This can be used to check that the a passed shader works
* in your usecase. It is determined by looking at the highest
* u_textureN value that the shader defines.
* @returns The number of texture inputs required by @shader
*/
get_n_textures(): number;
/**
* Get the number of declared uniforms for this shader.
* @returns The number of declared uniforms
*/
get_n_uniforms(): number;
/**
* Gets the resource path for the GLSL sourcecode being used
* to render this shader.
* @returns The resource path for the shader
*/
get_resource(): string | null;
/**
* Gets the GLSL sourcecode being used to render this shader.
* @returns The source code for the shader
*/
get_source(): GLib.Bytes;
/**
* Get the name of the declared uniform for this shader at index `idx`.
* @param idx index of the uniform
* @returns The name of the declared uniform
*/
get_uniform_name(idx: number): string;
/**
* Get the offset into the data block where data for this uniforms is stored.
* @param idx index of the uniform
* @returns The data offset
*/
get_uniform_offset(idx: number): number;
/**
* Get the type of the declared uniform for this shader at index `idx`.
* @param idx index of the uniform
* @returns The type of the declared uniform
*/
get_uniform_type(idx: number): GLUniformType;
}
/**
* A render node using a GL shader when drawing its children nodes.
*/
class GLShaderNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](
shader: GLShader,
bounds: Graphene.Rect,
args: GLib.Bytes | Uint8Array,
children?: RenderNode[] | null,
): GLShaderNode;
// Methods
/**
* Gets args for the node.
* @returns A `GBytes` with the uniform arguments
*/
get_args(): GLib.Bytes;
/**
* Gets one of the children.
* @param idx the position of the child to get
* @returns the @idx'th child of @node
*/
get_child(idx: number): RenderNode;
/**
* Returns the number of children
* @returns The number of children
*/
get_n_children(): number;
/**
* Gets shader code for the node.
* @returns the `GskGLShader` shader
*/
get_shader(): GLShader;
}
/**
* A render node for an inset shadow.
*/
class InsetShadowNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](
outline: RoundedRect,
color: Gdk.RGBA,
dx: number,
dy: number,
spread: number,
blur_radius: number,
): InsetShadowNode;
// Methods
/**
* Retrieves the blur radius to apply to the shadow.
* @returns the blur radius, in pixels
*/
get_blur_radius(): number;
/**
* Retrieves the color of the inset shadow.
*
* The value returned by this function will not be correct
* if the render node was created for a non-sRGB color.
* @returns the color of the shadow
*/
get_color(): Gdk.RGBA;
/**
* Retrieves the horizontal offset of the inset shadow.
* @returns an offset, in pixels
*/
get_dx(): number;
/**
* Retrieves the vertical offset of the inset shadow.
* @returns an offset, in pixels
*/
get_dy(): number;
/**
* Retrieves the outline rectangle of the inset shadow.
* @returns a rounded rectangle
*/
get_outline(): RoundedRect;
/**
* Retrieves how much the shadow spreads inwards.
* @returns the size of the shadow, in pixels
*/
get_spread(): number;
}
/**
* A render node for a linear gradient.
*/
class LinearGradientNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](
bounds: Graphene.Rect,
start: Graphene.Point,
end: Graphene.Point,
color_stops: ColorStop[],
): LinearGradientNode;
// Methods
/**
* Retrieves the color stops in the gradient.
* @returns the color stops in the gradient
*/
get_color_stops(): ColorStop[];
/**
* Retrieves the final point of the linear gradient.
* @returns the final point
*/
get_end(): Graphene.Point;
/**
* Retrieves the number of color stops in the gradient.
* @returns the number of color stops
*/
get_n_color_stops(): number;
/**
* Retrieves the initial point of the linear gradient.
* @returns the initial point
*/
get_start(): Graphene.Point;
}
/**
* A render node masking one child node with another.
*/
class MaskNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](source: RenderNode, mask: RenderNode, mask_mode: MaskMode): MaskNode;
// Methods
/**
* Retrieves the mask `GskRenderNode` child of the `node`.
* @returns the mask child node
*/
get_mask(): RenderNode;
/**
* Retrieves the mask mode used by `node`.
* @returns the mask mode
*/
get_mask_mode(): MaskMode;
/**
* Retrieves the source `GskRenderNode` child of the `node`.
* @returns the source child node
*/
get_source(): RenderNode;
}
namespace NglRenderer {
// Constructor properties interface
interface ConstructorProps extends Renderer.ConstructorProps {}
}
/**
* A GL based renderer.
*
* See [class`Gsk`.Renderer].
*/
class NglRenderer extends Renderer {
static $gtype: GObject.GType;
// Constructors
constructor(properties?: Partial, ...args: any[]);
_init(...args: any[]): void;
static ['new'](): NglRenderer;
}
/**
* A render node controlling the opacity of its single child node.
*/
class OpacityNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](child: RenderNode, opacity: number): OpacityNode;
// Methods
/**
* Gets the child node that is getting opacityed by the given `node`.
* @returns The child that is getting opacityed
*/
get_child(): RenderNode;
/**
* Gets the transparency factor for an opacity node.
* @returns the opacity factor
*/
get_opacity(): number;
}
/**
* A render node for an outset shadow.
*/
class OutsetShadowNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](
outline: RoundedRect,
color: Gdk.RGBA,
dx: number,
dy: number,
spread: number,
blur_radius: number,
): OutsetShadowNode;
// Methods
/**
* Retrieves the blur radius of the shadow.
* @returns the blur radius, in pixels
*/
get_blur_radius(): number;
/**
* Retrieves the color of the outset shadow.
*
* The value returned by this function will not be correct
* if the render node was created for a non-sRGB color.
* @returns a color
*/
get_color(): Gdk.RGBA;
/**
* Retrieves the horizontal offset of the outset shadow.
* @returns an offset, in pixels
*/
get_dx(): number;
/**
* Retrieves the vertical offset of the outset shadow.
* @returns an offset, in pixels
*/
get_dy(): number;
/**
* Retrieves the outline rectangle of the outset shadow.
* @returns a rounded rectangle
*/
get_outline(): RoundedRect;
/**
* Retrieves how much the shadow spreads outwards.
* @returns the size of the shadow, in pixels
*/
get_spread(): number;
}
/**
* A render node for a radial gradient.
*/
class RadialGradientNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](
bounds: Graphene.Rect,
center: Graphene.Point,
hradius: number,
vradius: number,
start: number,
end: number,
color_stops: ColorStop[],
): RadialGradientNode;
// Methods
/**
* Retrieves the center pointer for the gradient.
* @returns the center point for the gradient
*/
get_center(): Graphene.Point;
/**
* Retrieves the color stops in the gradient.
* @returns the color stops in the gradient
*/
get_color_stops(): ColorStop[];
/**
* Retrieves the end value for the gradient.
* @returns the end value for the gradient
*/
get_end(): number;
/**
* Retrieves the horizontal radius for the gradient.
* @returns the horizontal radius for the gradient
*/
get_hradius(): number;
/**
* Retrieves the number of color stops in the gradient.
* @returns the number of color stops
*/
get_n_color_stops(): number;
/**
* Retrieves the start value for the gradient.
* @returns the start value for the gradient
*/
get_start(): number;
/**
* Retrieves the vertical radius for the gradient.
* @returns the vertical radius for the gradient
*/
get_vradius(): number;
}
/**
* The basic block in a scene graph to be rendered using [class`Gsk`.Renderer].
*
* 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.
*/
abstract class RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
// Static methods
/**
* Loads data previously created via [method`Gsk`.RenderNode.serialize].
*
* For a discussion of the supported format, see that function.
* @param bytes the bytes containing the data
* @param error_func callback on parsing errors
*/
static deserialize(bytes: GLib.Bytes | Uint8Array, error_func?: ParseErrorFunc | null): RenderNode | null;
// Methods
/**
* Draws the contents of a render node on a cairo context.
*
* Typically, you'll use this function to implement fallback rendering
* of render nodes on an intermediate Cairo context, instead of using
* the drawing context associated to a [class`Gdk`.Surface]'s rendering buffer.
*
* For advanced nodes that cannot be supported using Cairo, in particular
* for nodes doing 3D operations, this function may fail.
* @param cr cairo context to draw to
*/
draw(cr: cairo.Context): void;
/**
* Retrieves the boundaries of the `node`.
*
* The node will not draw outside of its boundaries.
*/
get_bounds(): Graphene.Rect;
/**
* Returns the type of the render node.
* @returns the type of @node
*/
get_node_type(): RenderNodeType;
/**
* Gets an opaque rectangle inside the node that GTK can determine to
* be fully opaque.
*
* There is no guarantee that this is indeed the largest opaque rectangle or
* that regions outside the rectangle are not opaque. This function is a best
* effort with that goal.
*
* The rectangle will be fully contained in the bounds of the node.
* @returns true if part or all of the rendernode is opaque, false if no opaque region could be found.
*/
get_opaque_rect(): [boolean, Graphene.Rect];
/**
* Acquires a reference on the given `GskRenderNode`.
* @returns the render node with an additional reference
*/
ref(): RenderNode;
/**
* 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.
*
* The intended use of this functions is testing, benchmarking and debugging.
* The format is not meant as a permanent storage format.
* @returns a `GBytes` representing the node.
*/
serialize(): GLib.Bytes;
/**
* Releases a reference on the given `GskRenderNode`.
*
* If the reference was the last, the resources associated to the `node` are
* freed.
*/
unref(): void;
/**
* This function is equivalent to calling [method`Gsk`.RenderNode.serialize]
* followed by [func`GLib`.file_set_contents].
*
* See those two functions for details on the arguments.
*
* It is mostly intended for use inside a debugger to quickly dump a render
* node to a file for later inspection.
* @param filename the file to save it to
* @returns true if saving was successful
*/
write_to_file(filename: string): boolean;
}
namespace Renderer {
// Constructor properties interface
interface ConstructorProps extends GObject.Object.ConstructorProps {
realized: boolean;
surface: Gdk.Surface;
}
}
/**
* Renders a scene graph defined via a tree of [class`Gsk`.RenderNode] instances.
*
* Typically you will use a `GskRenderer` instance to repeatedly call
* [method`Gsk`.Renderer.render] to update the contents of its associated
* [class`Gdk`.Surface].
*
* It is necessary to realize a `GskRenderer` instance using
* [method`Gsk`.Renderer.realize] before calling [method`Gsk`.Renderer.render],
* in order to create the appropriate windowing system resources needed
* to render the scene.
*/
abstract class Renderer extends GObject.Object {
static $gtype: GObject.GType;
// Properties
/**
* Whether the renderer has been associated with a surface or draw context.
*/
get realized(): boolean;
/**
* The surface associated with renderer.
*/
get surface(): Gdk.Surface;
// Constructors
constructor(properties?: Partial, ...args: any[]);
_init(...args: any[]): void;
static new_for_surface(surface: Gdk.Surface): Renderer;
// Methods
/**
* Retrieves the surface that the renderer is associated with.
*
* If the renderer has not been realized yet, `NULL` will be returned.
* @returns the surface
*/
get_surface(): Gdk.Surface | null;
/**
* Checks whether the renderer is realized or not.
* @returns true if the renderer was realized, false otherwise
*/
is_realized(): boolean;
/**
* Creates the resources needed by the renderer.
*
* Since GTK 4.6, the surface may be `NULL`, which allows using
* renderers without having to create a surface. Since GTK 4.14,
* it is recommended to use [method`Gsk`.Renderer.realize_for_display]
* for this case.
*
* Note that it is mandatory to call [method`Gsk`.Renderer.unrealize]
* before destroying the renderer.
* @param surface the surface that renderer will be used on
* @returns whether the renderer was successfully realized
*/
realize(surface?: Gdk.Surface | null): boolean;
/**
* Creates the resources needed by the renderer.
*
* Note that it is mandatory to call [method`Gsk`.Renderer.unrealize]
* before destroying the renderer.
* @param display the display that the renderer will be used on
* @returns whether the renderer was successfully realized
*/
realize_for_display(display: Gdk.Display): boolean;
/**
* Renders the scene graph, described by a tree of `GskRenderNode` instances
* to the renderer's surface, ensuring that the given region gets redrawn.
*
* If the renderer has no associated surface, this function does nothing.
*
* Renderers must ensure that changes of the contents given by the `root`
* node as well as the area given by `region` are redrawn. They are however
* free to not redraw any pixel outside of `region` if they can guarantee that
* it didn't change.
*
* The renderer will acquire a reference on the `GskRenderNode` tree while
* the rendering is in progress.
* @param root the render node to render
* @param region the `cairo_region_t` that must be redrawn or `NULL` for the whole surface
*/
render(root: RenderNode, region?: cairo.Region | null): void;
/**
* Renders a scene graph, described by a tree of `GskRenderNode` instances,
* to a texture.
*
* The renderer will acquire a reference on the `GskRenderNode` tree while
* the rendering is in progress.
*
* If you want to apply any transformations to `root,` you should put it into a
* transform node and pass that node instead.
* @param root the render node to render
* @param viewport the section to draw or `NULL` to use @root's bounds
* @returns a texture with the rendered contents of @root
*/
render_texture(root: RenderNode, viewport?: Graphene.Rect | null): Gdk.Texture;
/**
* Releases all the resources created by [method`Gsk`.Renderer.realize].
*/
unrealize(): void;
}
/**
* A render node repeating its single child node.
*/
class RepeatNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](bounds: Graphene.Rect, child: RenderNode, child_bounds?: Graphene.Rect | null): RepeatNode;
// Methods
/**
* Retrieves the child of `node`.
* @returns a `GskRenderNode`
*/
get_child(): RenderNode;
/**
* Retrieves the bounding rectangle of the child of `node`.
* @returns a bounding rectangle
*/
get_child_bounds(): Graphene.Rect;
}
/**
* A render node for a repeating linear gradient.
*/
class RepeatingLinearGradientNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](
bounds: Graphene.Rect,
start: Graphene.Point,
end: Graphene.Point,
color_stops: ColorStop[],
): RepeatingLinearGradientNode;
}
/**
* A render node for a repeating radial gradient.
*/
class RepeatingRadialGradientNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](
bounds: Graphene.Rect,
center: Graphene.Point,
hradius: number,
vradius: number,
start: number,
end: number,
color_stops: ColorStop[],
): RepeatingRadialGradientNode;
}
/**
* A render node applying a rounded rectangle clip to its single child.
*/
class RoundedClipNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](child: RenderNode, clip: RoundedRect): RoundedClipNode;
// Methods
/**
* Gets the child node that is getting clipped by the given `node`.
* @returns The child that is getting clipped
*/
get_child(): RenderNode;
/**
* Retrieves the rounded rectangle used to clip the contents of the `node`.
* @returns a rounded rectangle
*/
get_clip(): RoundedRect;
}
/**
* A render node drawing one or more shadows behind its single child node.
*/
class ShadowNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](child: RenderNode, shadows: Shadow[]): ShadowNode;
// Methods
/**
* Retrieves the child `GskRenderNode` of the shadow `node`.
* @returns the child render node
*/
get_child(): RenderNode;
/**
* Retrieves the number of shadows in the `node`.
* @returns the number of shadows.
*/
get_n_shadows(): number;
/**
* Retrieves the shadow data at the given index `i`.
* @param i the given index
* @returns the shadow data
*/
get_shadow(i: number): Shadow;
}
/**
* A render node that will fill the area determined by stroking the the given
* [struct`Gsk`.Path] using the [struct`Gsk`.Stroke] attributes.
*/
class StrokeNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](child: RenderNode, path: Path, stroke: Stroke): StrokeNode;
// Methods
/**
* Gets the child node that is getting drawn by the given `node`.
* @returns The child that is getting drawn
*/
get_child(): RenderNode;
/**
* Retrieves the path that will be stroked with the contents of
* the `node`.
* @returns a #GskPath
*/
get_path(): Path;
/**
* Retrieves the stroke attributes used in this `node`.
* @returns a #GskStroke
*/
get_stroke(): Stroke;
}
/**
* A render node that potentially diverts a part of the scene graph to a subsurface.
*/
class SubsurfaceNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
// Methods
/**
* Gets the child node that is getting drawn by the given `node`.
* @returns the child `GskRenderNode`
*/
get_child(): RenderNode;
}
/**
* A render node drawing a set of glyphs.
*/
class TextNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](
font: Pango.Font,
glyphs: Pango.GlyphString,
color: Gdk.RGBA,
offset: Graphene.Point,
): TextNode;
// Methods
/**
* Retrieves the color used by the text `node`.
*
* The value returned by this function will not be correct
* if the render node was created for a non-sRGB color.
* @returns the text color
*/
get_color(): Gdk.RGBA;
/**
* Returns the font used by the text `node`.
* @returns the font
*/
get_font(): Pango.Font;
/**
* Retrieves the glyph information in the `node`.
* @returns the glyph information
*/
get_glyphs(): Pango.GlyphInfo[];
/**
* Retrieves the number of glyphs in the text node.
* @returns the number of glyphs
*/
get_num_glyphs(): number;
/**
* Retrieves the offset applied to the text.
* @returns a point with the horizontal and vertical offsets
*/
get_offset(): Graphene.Point;
/**
* Checks whether the text `node` has color glyphs.
* @returns %TRUE if the text node has color glyphs
*/
has_color_glyphs(): boolean;
}
/**
* A render node for a `GdkTexture`.
*/
class TextureNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](texture: Gdk.Texture, bounds: Graphene.Rect): TextureNode;
// Methods
/**
* Retrieves the `GdkTexture` used when creating this `GskRenderNode`.
* @returns the `GdkTexture`
*/
get_texture(): Gdk.Texture;
}
/**
* A render node for a `GdkTexture`, with control over scaling.
*/
class TextureScaleNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](texture: Gdk.Texture, bounds: Graphene.Rect, filter: ScalingFilter): TextureScaleNode;
// Methods
/**
* Retrieves the `GskScalingFilter` used when creating this `GskRenderNode`.
* @returns the `GskScalingFilter`
*/
get_filter(): ScalingFilter;
/**
* Retrieves the `GdkTexture` used when creating this `GskRenderNode`.
* @returns the `GdkTexture`
*/
get_texture(): Gdk.Texture;
}
/**
* A render node applying a `GskTransform` to its single child node.
*/
class TransformNode extends RenderNode {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
static ['new'](child: RenderNode, transform: Transform): TransformNode;
// Methods
/**
* Gets the child node that is getting transformed by the given `node`.
* @returns The child that is getting transformed
*/
get_child(): RenderNode;
/**
* Retrieves the `GskTransform` used by the `node`.
* @returns a `GskTransform`
*/
get_transform(): Transform;
}
namespace VulkanRenderer {
// Constructor properties interface
interface ConstructorProps extends Renderer.ConstructorProps {}
}
/**
* Renders a GSK rendernode tree with Vulkan.
*
* This renderer will fail to realize if Vulkan is not supported.
*/
class VulkanRenderer extends Renderer {
static $gtype: GObject.GType;
// Constructors
constructor(properties?: Partial, ...args: any[]);
_init(...args: any[]): void;
static ['new'](): VulkanRenderer;
}
type BroadwayRendererClass = typeof BroadwayRenderer;
type CairoRendererClass = typeof CairoRenderer;
/**
* A color stop in a gradient node.
*/
class ColorStop {
static $gtype: GObject.GType;
// Fields
offset: number;
color: Gdk.RGBA;
// Constructors
constructor(
properties?: Partial<{
offset: number;
color: Gdk.RGBA;
}>,
);
_init(...args: any[]): void;
}
type GLRendererClass = typeof GLRenderer;
type GLShaderClass = typeof GLShader;
/**
* A location in a parse buffer.
*/
class ParseLocation {
static $gtype: GObject.GType;
// Fields
bytes: number;
chars: number;
lines: number;
line_bytes: number;
line_chars: number;
// Constructors
constructor(
properties?: Partial<{
bytes: number;
chars: number;
lines: number;
line_bytes: number;
line_chars: number;
}>,
);
_init(...args: any[]): void;
}
/**
* Describes lines and curves that are more complex than simple rectangles.
*
* Paths can used for rendering (filling or stroking) and for animations
* (e.g. as trajectories).
*
* `GskPath` is an immutable, opaque, reference-counted struct.
* After creation, you cannot change the types it represents. Instead,
* new `GskPath` objects have to be created. The [struct`Gsk`.PathBuilder]
* structure is meant to help in this endeavor.
*
* Conceptually, a path consists of zero or more contours (continuous, connected
* curves), each of which may or may not be closed. Contours are typically
* constructed from Bézier segments.
*
*
*
*
*
*/
abstract class Path {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
// Static methods
/**
* Constructs a path from a serialized form.
*
* The string is expected to be in (a superset of)
* [SVG path syntax](https://www.w3.org/TR/SVG11/paths.html#PathData),
* as e.g. produced by [method`Gsk`.Path.to_string].
*
* A high-level summary of the syntax:
*
* - `M x y` Move to `(x, y)`
* - `L x y` Add a line from the current point to `(x, y)`
* - `Q x1 y1 x2 y2` Add a quadratic Bézier from the current point to `(x2, y2)`, with control point `(x1, y1)`
* - `C x1 y1 x2 y2 x3 y3` Add a cubic Bézier from the current point to `(x3, y3)`, with control points `(x1, y1)` and `(x2, y2)`
* - `Z` Close the contour by drawing a line back to the start point
* - `H x` Add a horizontal line from the current point to the given x value
* - `V y` Add a vertical line from the current point to the given y value
* - `T x2 y2` Add a quadratic Bézier, using the reflection of the previous segments' control point as control point
* - `S x2 y2 x3 y3` Add a cubic Bézier, using the reflection of the previous segments' second control point as first control point
* - `A rx ry r l s x y` Add an elliptical arc from the current point to `(x, y)` with radii rx and ry. See the SVG documentation for how the other parameters influence the arc.
* - `O x1 y1 x2 y2 w` Add a rational quadratic Bézier from the current point to `(x2, y2)` with control point `(x1, y1)` and weight `w`.
*
* All the commands have lowercase variants that interpret coordinates
* relative to the current point.
*
* The `O` command is an extension that is not supported in SVG.
* @param string a string
*/
static parse(string: string): Path | null;
// Methods
/**
* Calls `func` for every operation of the path.
*
* Note that this may only approximate `self,` because paths can contain
* optimizations for various specialized contours, and depending on the
* `flags,` the path may be decomposed into simpler curves than the ones
* that it contained originally.
*
* This function serves two purposes:
*
* - When the `flags` allow everything, it provides access to the raw,
* unmodified data of the path.
* - When the `flags` disallow certain operations, it provides
* an approximation of the path using just the allowed operations.
* @param flags flags to pass to the foreach function
* @param func the function to call for operations
* @returns false if @func returned false, true otherwise.
*/
foreach(flags: PathForeachFlags | null, func: PathForeachFunc): boolean;
/**
* Computes the bounds of the given path.
*
* The returned bounds may be larger than necessary, because this
* function aims to be fast, not accurate. The bounds are guaranteed
* to contain the path.
*
* It is possible that the returned rectangle has 0 width and/or height.
* This can happen when the path only describes a point or an
* axis-aligned line.
*
* If the path is empty, false is returned and `bounds` are set to
* graphene_rect_zero(). This is different from the case where the path
* is a single point at the origin, where the `bounds` will also be set to
* the zero rectangle but true will be returned.
* @returns true if the path has bounds, false if the path is known to be empty and have no bounds
*/
get_bounds(): [boolean, Graphene.Rect];
/**
* Computes the closest point on the path to the given point.
*
* If there is no point closer than the given threshold,
* false is returned.
* @param point the point
* @param threshold maximum allowed distance
* @returns true if @point was set to the closest point on @self, false if no point is closer than @threshold
*/
get_closest_point(point: Graphene.Point, threshold: number): [boolean, PathPoint, number];
/**
* Gets the end point of the path.
*
* An empty path has no points, so false
* is returned in this case.
* @returns true if @result was filled
*/
get_end_point(): [boolean, PathPoint];
/**
* Gets the start point of the path.
*
* An empty path has no points, so false
* is returned in this case.
* @returns true if @result was filled
*/
get_start_point(): [boolean, PathPoint];
/**
* Computes the bounds for stroking the given path with the
* given parameters.
*
* The returned bounds may be larger than necessary, because this
* function aims to be fast, not accurate. The bounds are guaranteed
* to contain the area affected by the stroke, including protrusions
* like miters.
* @param stroke stroke parameters
* @returns true if the path has bounds, false if the path is known to be empty and have no bounds.
*/
get_stroke_bounds(stroke: Stroke): [boolean, Graphene.Rect];
/**
* Returns whether a point is inside the fill area of a path.
*
* Note that this function assumes that filling a contour
* implicitly closes it.
* @param point the point to test
* @param fill_rule the fill rule to follow
* @returns true if @point is inside
*/
in_fill(point: Graphene.Point, fill_rule: FillRule | null): boolean;
/**
* Returns if the path represents a single closed contour.
* @returns true if the path is closed
*/
is_closed(): boolean;
/**
* Checks if the path is empty, i.e. contains no lines or curves.
* @returns true if the path is empty
*/
is_empty(): boolean;
/**
* Converts the path into a human-readable representation.
*
* The string is compatible with (a superset of)
* [SVG path syntax](https://www.w3.org/TR/SVG11/paths.html#PathData),
* see [func`Gsk`.Path.parse] for a summary of the syntax.
* @param string the string to print into
*/
print(string: GLib.String): void;
/**
* Increases the reference count of a path by one.
* @returns the passed in `GskPath`
*/
ref(): Path;
/**
* Appends the path to a cairo context for drawing with Cairo.
*
* This may cause some suboptimal conversions to be performed as
* Cairo does not support all features of `GskPath`.
*
* This function does not clear the existing Cairo path. Call
* cairo_new_path() if you want this.
* @param cr a cairo context
*/
to_cairo(cr: cairo.Context): void;
/**
* Converts the path into a human-readable string.
*
* You can use this function in a debugger to get a quick overview
* of the path.
*
* This is a wrapper around [method`Gsk`.Path.print], see that function
* for details.
* @returns a new string for @self
*/
to_string(): string;
/**
* Decreases the reference count of a path by one.
*
* If the resulting reference count is zero, frees the path.
*/
unref(): void;
}
/**
* Constructs `GskPath` objects.
*
* A path is constructed like this:
*
* ```c
* GskPath *
* construct_path (void)
* {
* GskPathBuilder *builder;
*
* builder = gsk_path_builder_new ();
*
* // add contours to the path here
*
* return gsk_path_builder_free_to_path (builder);
* ```
*
* Adding contours to the path can be done in two ways.
* The easiest option is to use the `gsk_path_builder_add_*` group
* of functions that add predefined contours to the current path,
* either common shapes like [method`Gsk`.PathBuilder.add_circle]
* or by adding from other paths like [method`Gsk`.PathBuilder.add_path].
*
* The `gsk_path_builder_add_*` methods always add complete contours,
* and do not use or modify the current point.
*
* The other option is to define each line and curve manually with
* the `gsk_path_builder_*_to` group of functions. You start with
* a call to [method`Gsk`.PathBuilder.move_to] to set the starting point
* and then use multiple calls to any of the drawing functions to
* move the pen along the plane. Once you are done, you can call
* [method`Gsk`.PathBuilder.close] to close the path by connecting it
* back with a line to the starting point.
*
* This is similar to how paths are drawn in Cairo.
*
* Note that `GskPathBuilder` will reduce the degree of added Bézier
* curves as much as possible, to simplify rendering.
*/
class PathBuilder {
static $gtype: GObject.GType;
// Constructors
constructor(properties?: Partial<{}>);
_init(...args: any[]): void;
static ['new'](): PathBuilder;
// Methods
/**
* Adds a Cairo path to the builder.
*
* You can use cairo_copy_path() to access the path
* from a Cairo context.
* @param path a path
*/
add_cairo_path(path: cairo.Path): void;
/**
* Adds a circle as a new contour.
*
* The path is going around the circle in clockwise direction.
*
* If `radius` is zero, the contour will be a closed point.
* @param center the center of the circle
* @param radius the radius of the circle
*/
add_circle(center: Graphene.Point, radius: number): void;
/**
* Adds the outlines for the glyphs in `layout` to the builder.
* @param layout the pango layout to add
*/
add_layout(layout: Pango.Layout): void;
/**
* Appends all of `path` to the builder.
* @param path the path to append
*/
add_path(path: Path): void;
/**
* Adds a rectangle as a new contour.
*
* The path is going around the rectangle in clockwise direction.
*
* If the the width or height are 0, the path will be a closed
* horizontal or vertical line. If both are 0, it'll be a closed dot.
* @param rect the rectangle to create a path for
*/
add_rect(rect: Graphene.Rect): void;
/**
* Appends all of `path` to the builder, in reverse order.
* @param path the path to append
*/
add_reverse_path(path: Path): void;
/**
* Adds a rounded rectangle as a new contour.
*
* The path is going around the rectangle in clockwise direction.
* @param rect the rounded rect
*/
add_rounded_rect(rect: RoundedRect): void;
/**
* Adds a segment of a path to the builder.
*
* If `start` is equal to or after `end,` the path will first add the
* segment from `start` to the end of the path, and then add the segment
* from the beginning to `end`. If the path is closed, these segments
* will be connected.
*
* Note that this method always adds a path with the given start point
* and end point. To add a closed path, use [method`Gsk`.PathBuilder.add_path].
* @param path the path to take the segment to
* @param start the point on @path to start at
* @param end the point on @path to end at
*/
add_segment(path: Path, start: PathPoint, end: PathPoint): void;
/**
* Adds an elliptical arc from the current point to `x2`, `y2`
* with `x1`, `y1` determining the tangent directions.
*
* After this, `x2`, `y2` will be the new current point.
*
* Note: Two points and their tangents do not determine
* a unique ellipse, so GSK just picks one. If you need more
* precise control, use [method`Gsk`.PathBuilder.conic_to]
* or [method`Gsk`.PathBuilder.svg_arc_to].
*
*
*
*
*
* @param x1 x coordinate of first control point
* @param y1 y coordinate of first control point
* @param x2 x coordinate of second control point
* @param y2 y coordinate of second control point
*/
arc_to(x1: number, y1: number, x2: number, y2: number): void;
/**
* Ends the current contour with a line back to the start point.
*
* Note that this is different from calling [method`Gsk`.PathBuilder.line_to]
* with the start point in that the contour will be closed. A closed
* contour behaves differently from an open one. When stroking, its
* start and end point are considered connected, so they will be
* joined via the line join, and not ended with line caps.
*/
close(): void;
/**
* Adds a [conic curve](https://en.wikipedia.org/wiki/Non-uniform_rational_B-spline)
* from the current point to `x2`, `y2` with the given `weight` and `x1`, `y1` as the
* control point.
*
* The weight determines how strongly the curve is pulled towards the control point.
* A conic with weight 1 is identical to a quadratic Bézier curve with the same points.
*
* Conic curves can be used to draw ellipses and circles. They are also known as
* rational quadratic Bézier curves.
*
* After this, `x2`, `y2` will be the new current point.
*
*
*
*
*
* @param x1 x coordinate of control point
* @param y1 y coordinate of control point
* @param x2 x coordinate of the end of the curve
* @param y2 y coordinate of the end of the curve
* @param weight weight of the control point, must be greater than zero
*/
conic_to(x1: number, y1: number, x2: number, y2: number, weight: number): void;
/**
* Adds a [cubic Bézier curve](https://en.wikipedia.org/wiki/B%C3%A9zier_curve)
* from the current point to `x3`, `y3` with `x1`, `y1` and `x2`, `y2` as the control
* points.
*
* After this, `x3`, `y3` will be the new current point.
*
*
*
*
*
* @param x1 x coordinate of first control point
* @param y1 y coordinate of first control point
* @param x2 x coordinate of second control point
* @param y2 y coordinate of second control point
* @param x3 x coordinate of the end of the curve
* @param y3 y coordinate of the end of the curve
*/
cubic_to(x1: number, y1: number, x2: number, y2: number, x3: number, y3: number): void;
/**
* Gets the current point.
*
* The current point is used for relative drawing commands and
* updated after every operation.
*
* When the builder is created, the default current point is set
* to `0, 0`. Note that this is different from cairo, which starts
* out without a current point.
* @returns the current point
*/
get_current_point(): Graphene.Point;
/**
* Implements arc-to according to the HTML Canvas spec.
*
* A convenience function that implements the
* [HTML arc_to](https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-arcto-dev)
* functionality.
*
* After this, the current point will be the point where
* the circle with the given radius touches the line from
* `x1`, `y1` to `x2`, `y2`.
* @param x1 x coordinate of first control point
* @param y1 y coordinate of first control point
* @param x2 x coordinate of second control point
* @param y2 y coordinate of second control point
* @param radius radius of the circle
*/
html_arc_to(x1: number, y1: number, x2: number, y2: number, radius: number): void;
/**
* Draws a line from the current point to `x,` `y` and makes it
* the new current point.
*
*
*
*
*
* @param x x coordinate
* @param y y coordinate
*/
line_to(x: number, y: number): void;
/**
* Starts a new contour by placing the pen at `x,` `y`.
*
* If this function is called twice in succession, the first
* call will result in a contour made up of a single point.
* The second call will start a new contour.
* @param x x coordinate
* @param y y coordinate
*/
move_to(x: number, y: number): void;
/**
* Adds a [quadratic Bézier curve](https://en.wikipedia.org/wiki/B%C3%A9zier_curve)
* from the current point to `x2`, `y2` with `x1`, `y1` as the control point.
*
* After this, `x2`, `y2` will be the new current point.
*
*
*
*
*
* @param x1 x coordinate of control point
* @param y1 y coordinate of control point
* @param x2 x coordinate of the end of the curve
* @param y2 y coordinate of the end of the curve
*/
quad_to(x1: number, y1: number, x2: number, y2: number): void;
/**
* Acquires a reference on the given builder.
*
* This function is intended primarily for language bindings.
* `GskPathBuilder` objects should not be kept around.
* @returns the given path builder with its reference count increased
*/
ref(): PathBuilder;
/**
* Adds an elliptical arc from the current point to `x2`, `y2`
* with `x1`, `y1` determining the tangent directions.
*
* All coordinates are given relative to the current point.
*
* This is the relative version of [method`Gsk`.PathBuilder.arc_to].
* @param x1 x coordinate of first control point
* @param y1 y coordinate of first control point
* @param x2 x coordinate of second control point
* @param y2 y coordinate of second control point
*/
rel_arc_to(x1: number, y1: number, x2: number, y2: number): void;
/**
* Adds a [conic curve](https://en.wikipedia.org/wiki/Non-uniform_rational_B-spline)
* from the current point to `x2`, `y2` with the given `weight` and `x1`, `y1` as the
* control point.
*
* All coordinates are given relative to the current point.
*
* This is the relative version of [method`Gsk`.PathBuilder.conic_to].
* @param x1 x offset of control point
* @param y1 y offset of control point
* @param x2 x offset of the end of the curve
* @param y2 y offset of the end of the curve
* @param weight weight of the curve, must be greater than zero
*/
rel_conic_to(x1: number, y1: number, x2: number, y2: number, weight: number): void;
/**
* Adds a [cubic Bézier curve](https://en.wikipedia.org/wiki/B%C3%A9zier_curve)
* from the current point to `x3`, `y3` with `x1`, `y1` and `x2`, `y2` as the control
* points.
*
* All coordinates are given relative to the current point.
*
* This is the relative version of [method`Gsk`.PathBuilder.cubic_to].
* @param x1 x offset of first control point
* @param y1 y offset of first control point
* @param x2 x offset of second control point
* @param y2 y offset of second control point
* @param x3 x offset of the end of the curve
* @param y3 y offset of the end of the curve
*/
rel_cubic_to(x1: number, y1: number, x2: number, y2: number, x3: number, y3: number): void;
/**
* Implements arc-to according to the HTML Canvas spec.
*
* All coordinates are given relative to the current point.
*
* This is the relative version of [method`Gsk`.PathBuilder.html_arc_to].
* @param x1 x coordinate of first control point
* @param y1 y coordinate of first control point
* @param x2 x coordinate of second control point
* @param y2 y coordinate of second control point
* @param radius radius of the circle
*/
rel_html_arc_to(x1: number, y1: number, x2: number, y2: number, radius: number): void;
/**
* Draws a line from the current point to a point offset from it
* by `x,` `y` and makes it the new current point.
*
* This is the relative version of [method`Gsk`.PathBuilder.line_to].
* @param x x offset
* @param y y offset
*/
rel_line_to(x: number, y: number): void;
/**
* Starts a new contour by placing the pen at `x,` `y`
* relative to the current point.
*
* This is the relative version of [method`Gsk`.PathBuilder.move_to].
* @param x x offset
* @param y y offset
*/
rel_move_to(x: number, y: number): void;
/**
* Adds a [quadratic Bézier curve](https://en.wikipedia.org/wiki/B%C3%A9zier_curve)
* from the current point to `x2`, `y2` with `x1`, `y1` the control point.
*
* All coordinates are given relative to the current point.
*
* This is the relative version of [method`Gsk`.PathBuilder.quad_to].
* @param x1 x offset of control point
* @param y1 y offset of control point
* @param x2 x offset of the end of the curve
* @param y2 y offset of the end of the curve
*/
rel_quad_to(x1: number, y1: number, x2: number, y2: number): void;
/**
* Implements arc-to according to the SVG spec.
*
* All coordinates are given relative to the current point.
*
* This is the relative version of [method`Gsk`.PathBuilder.svg_arc_to].
* @param rx x radius
* @param ry y radius
* @param x_axis_rotation the rotation of the ellipsis
* @param large_arc whether to add the large arc
* @param positive_sweep whether to sweep in the positive direction
* @param x x coordinate of the endpoint
* @param y y coordinate of the endpoint
*/
rel_svg_arc_to(
rx: number,
ry: number,
x_axis_rotation: number,
large_arc: boolean,
positive_sweep: boolean,
x: number,
y: number,
): void;
/**
* Implements arc-to according to the SVG spec.
*
* A convenience function that implements the
* [SVG arc_to](https://www.w3.org/TR/SVG11/paths.html#PathDataEllipticalArcCommands)
* functionality.
*
* After this, `x,` `y` will be the new current point.
* @param rx x radius
* @param ry y radius
* @param x_axis_rotation the rotation of the ellipsis
* @param large_arc whether to add the large arc
* @param positive_sweep whether to sweep in the positive direction
* @param x x coordinate of the endpoint
* @param y y coordinate of the endpoint
*/
svg_arc_to(
rx: number,
ry: number,
x_axis_rotation: number,
large_arc: boolean,
positive_sweep: boolean,
x: number,
y: number,
): void;
/**
* Creates a new path from the given builder.
*
* The given `GskPathBuilder` is reset once this function returns;
* you cannot call this function multiple times on the same builder
* instance.
*
* This function is intended primarily for language bindings.
* C code should use [method`Gsk`.PathBuilder.free_to_path].
* @returns the newly created path with all the contours added to the builder
*/
to_path(): Path;
/**
* Releases a reference on the given builder.
*/
unref(): void;
}
/**
* Performs measurements on paths such as determining the length of the path.
*
* Many measuring operations require sampling the path length
* at intermediate points. Therefore, a `GskPathMeasure` has
* a tolerance that determines what precision is required
* for such approximations.
*
* A `GskPathMeasure` struct is a reference counted struct
* and should be treated as opaque.
*/
class PathMeasure {
static $gtype: GObject.GType;
// Constructors
constructor(path: Path);
_init(...args: any[]): void;
static ['new'](path: Path): PathMeasure;
static new_with_tolerance(path: Path, tolerance: number): PathMeasure;
// Methods
/**
* Gets the length of the path being measured.
*
* The length is cached, so this function does not do any work.
* @returns the length of the path measured by @self
*/
get_length(): number;
/**
* Returns the path that the measure was created for.
* @returns the path of @self
*/
get_path(): Path;
/**
* Gets the point at the given distance into the path.
*
* An empty path has no points, so false is returned in that case.
* @param distance the distance
* @returns true if @result was set
*/
get_point(distance: number): [boolean, PathPoint];
/**
* Returns the tolerance that the measure was created with.
* @returns the tolerance of @self
*/
get_tolerance(): number;
/**
* Increases the reference count of a `GskPathMeasure` by one.
* @returns the passed in `GskPathMeasure`.
*/
ref(): PathMeasure;
/**
* Decreases the reference count of a `GskPathMeasure` by one.
*
* If the resulting reference count is zero, frees the object.
*/
unref(): void;
}
/**
* Represents a point on a path.
*
* It can be queried for properties of the path at that point,
* such as its tangent or its curvature.
*
* To obtain a `GskPathPoint`, use [method`Gsk`.Path.get_closest_point],
* [method`Gsk`.Path.get_start_point], [method`Gsk`.Path.get_end_point]
* or [method`Gsk`.PathMeasure.get_point].
*
* Note that `GskPathPoint` structs are meant to be stack-allocated,
* and don't hold a reference to the path object they are obtained from.
* It is the callers responsibility to keep a reference to the path
* as long as the `GskPathPoint` is used.
*/
class PathPoint {
static $gtype: GObject.GType;
// Constructors
_init(...args: any[]): void;
// Methods
/**
* Returns whether `point1` is before or after `point2`.
* @param point2 another path point
* @returns -1 if @point1 is before @point2, 1 if @point1 is after @point2, 0 if they are equal
*/
compare(point2: PathPoint): number;
/**
* Copies a path point.
* @returns the copied point
*/
copy(): PathPoint;
/**
* Returns whether the two path points refer to the same
* location on all paths.
*
* Note that the start- and endpoint of a closed contour
* will compare nonequal according to this definition.
* Use [method`Gsk`.Path.is_closed] to find out if the
* start- and endpoint of a concrete path refer to the
* same location.
* @param point2 another path point
* @returns true if @point1 and @point2 are equal
*/
equal(point2: PathPoint): boolean;
/**
* Frees a path point copied by [method`Gsk`.PathPoint.copy].
*/
free(): void;
/**
* Calculates the curvature of the path at the point.
*
* Optionally, returns the center of the osculating circle as well.
* The curvature is the inverse of the radius of the osculating circle.
*
* Lines have a curvature of zero (indicating an osculating circle of
* infinite radius). In this case, the `center` is not modified.
*
* Circles with a radius of zero have `INFINITY` as curvature
*
* Note that certain points on a path may not have a single curvature,
* such as sharp turns. At such points, there are two curvatures — the
* (limit of) the curvature of the path going into the point, and the
* (limit of) the curvature of the path coming out of it. The `direction`
* argument lets you choose which one to get.
*
*
*
*
*
* @param path the path that @point is on
* @param direction the direction for which to return the curvature
* @returns the curvature of the path at the given point
*/
get_curvature(path: Path, direction: PathDirection | null): [number, Graphene.Point | null];
/**
* Returns the distance from the beginning of the path
* to the point.
* @param measure a path measure for the path
* @returns the distance of @point
*/
get_distance(measure: PathMeasure): number;
/**
* Gets the position of the point.
* @param path the path that @point is on
*/
get_position(path: Path): Graphene.Point;
/**
* Gets the direction of the tangent at a given point.
*
* This is a convenience variant of [method`Gsk`.PathPoint.get_tangent]
* that returns the angle between the tangent and the X axis. The angle
* can e.g. be used in
* [gtk_snapshot_rotate()](../gtk4/method.Snapshot.rotate.html).
* @param path the path that @point is on
* @param direction the direction for which to return the rotation
* @returns the angle between the tangent and the X axis, in degrees
*/
get_rotation(path: Path, direction: PathDirection | null): number;
/**
* Gets the tangent of the path at the point.
*
* Note that certain points on a path may not have a single
* tangent, such as sharp turns. At such points, there are
* two tangents — the direction of the path going into the
* point, and the direction coming out of it. The `direction`
* argument lets you choose which one to get.
*
* If the path is just a single point (e.g. a circle with
* radius zero), then the tangent is set to `0, 0`.
*
* If you want to orient something in the direction of the
* path, [method`Gsk`.PathPoint.get_rotation] may be more
* convenient to use.
* @param path the path that @point is on
* @param direction the direction for which to return the tangent
*/
get_tangent(path: Path, direction: PathDirection | null): Graphene.Vec2;
}
type RendererClass = typeof Renderer;
/**
* A rectangular region with rounded corners.
*
* Application code should normalize rectangles using
* [method`Gsk`.RoundedRect.normalize]; this function will ensure that
* the bounds of the rectangle are normalized and ensure that the corner
* values are positive and the corners do not overlap.
*
* All functions taking a `GskRoundedRect` as an argument will internally
* operate on a normalized copy; all functions returning a `GskRoundedRect`
* will always return a normalized one.
*
* The algorithm used for normalizing corner sizes is described in
* [the CSS specification](https://drafts.csswg.org/css-backgrounds-3/#border-radius).
*/
class RoundedRect {
static $gtype: GObject.GType;
// Fields
bounds: Graphene.Rect;
corner: Graphene.Size[];
// Constructors
constructor(
properties?: Partial<{
bounds: Graphene.Rect;
corner: Graphene.Size[];
}>,
);
_init(...args: any[]): void;
// Methods
/**
* Checks if the given point is inside the rounded rectangle.
* @param point the point to check
* @returns true if the point is inside the rounded rectangle
*/
contains_point(point: Graphene.Point): boolean;
/**
* Checks if the given rectangle is contained inside the rounded rectangle.
* @param rect the rectangle to check
* @returns true if the @rect is fully contained inside the rounded rectangle
*/
contains_rect(rect: Graphene.Rect): boolean;
/**
* Initializes a rounded rectangle with the given values.
*
* This function will implicitly normalize the rounded rectangle
* before returning.
* @param bounds a `graphene_rect_t` describing the bounds
* @param top_left the rounding radius of the top left corner
* @param top_right the rounding radius of the top right corner
* @param bottom_right the rounding radius of the bottom right corner
* @param bottom_left the rounding radius of the bottom left corner
* @returns the initialized rounded rectangle
*/
init(
bounds: Graphene.Rect,
top_left: Graphene.Size,
top_right: Graphene.Size,
bottom_right: Graphene.Size,
bottom_left: Graphene.Size,
): RoundedRect;
/**
* Initializes a rounded rectangle with a copy.
*
* This function will not normalize the rounded rectangle,
* so make sure the source is normalized.
* @param src another rounded rectangle
* @returns the initialized rounded rectangle
*/
init_copy(src: RoundedRect): RoundedRect;
/**
* Initializes a rounded rectangle to the given bounds
* and sets the radius of all four corners equally.
* @param bounds a `graphene_rect_t`
* @param radius the border radius
* @returns the initialized rounded rectangle
*/
init_from_rect(bounds: Graphene.Rect, radius: number): RoundedRect;
/**
* Checks if part a rectangle is contained
* inside the rounded rectangle.
* @param rect the rectangle to check
* @returns true if the @rect intersects with the rounded rectangle
*/
intersects_rect(rect: Graphene.Rect): boolean;
/**
* Checks if all corners of a rounded rectangle are right angles
* and the rectangle covers all of its bounds.
*
* This information can be used to decide if [ctor`Gsk`.ClipNode.new]
* or [ctor`Gsk`.RoundedClipNode.new] should be called.
* @returns true if the rounded rectangle is rectilinear
*/
is_rectilinear(): boolean;
/**
* Normalizes a rounded rectangle.
*
* This function will ensure that the bounds of the rounded rectangle
* are normalized and ensure that the corner values are positive
* and the corners do not overlap.
* @returns the normalized rounded rectangle
*/
normalize(): RoundedRect;
/**
* Offsets the rounded rectangle's origin by `dx` and `dy`.
*
* The size and corners of the rounded rectangle are unchanged.
* @param dx the horizontal offset
* @param dy the vertical offset
* @returns the offset rounded rectangle
*/
offset(dx: number, dy: number): RoundedRect;
/**
* Shrinks (or grows) a rounded rectangle by moving the 4 sides
* according to the offsets given.
*
* The corner radii will be changed in a way that tries to keep
* the center of the corner circle intact. This emulates CSS behavior.
*
* This function also works for growing rounded rectangles
* if you pass negative values for the `top,` `right,` `bottom` or `left`.
* @param top how far to move the top side downwards
* @param right how far to move the right side to the left
* @param bottom how far to move the bottom side upwards
* @param left how far to move the left side to the right
* @returns the resized rounded rectangle
*/
shrink(top: number, right: number, bottom: number, left: number): RoundedRect;
}
/**
* Builds the uniforms data for a `GskGLShader`.
*/
class ShaderArgsBuilder {
static $gtype: GObject.GType;
// Constructors
constructor(shader: GLShader, initial_values?: GLib.Bytes | null);
_init(...args: any[]): void;
static ['new'](shader: GLShader, initial_values?: GLib.Bytes | null): ShaderArgsBuilder;
// Methods
/**
* Increases the reference count of a `GskShaderArgsBuilder` by one.
* @returns the passed in `GskShaderArgsBuilder`
*/
ref(): ShaderArgsBuilder;
/**
* Sets the value of the uniform `idx`.
*
* The uniform must be of bool type.
* @param idx index of the uniform
* @param value value to set the uniform to
*/
set_bool(idx: number, value: boolean): void;
/**
* Sets the value of the uniform `idx`.
*
* The uniform must be of float type.
* @param idx index of the uniform
* @param value value to set the uniform to
*/
set_float(idx: number, value: number): void;
/**
* Sets the value of the uniform `idx`.
*
* The uniform must be of int type.
* @param idx index of the uniform
* @param value value to set the uniform to
*/
set_int(idx: number, value: number): void;
/**
* Sets the value of the uniform `idx`.
*
* The uniform must be of uint type.
* @param idx index of the uniform
* @param value value to set the uniform to
*/
set_uint(idx: number, value: number): void;
/**
* Sets the value of the uniform `idx`.
*
* The uniform must be of vec2 type.
* @param idx index of the uniform
* @param value value to set the uniform too
*/
set_vec2(idx: number, value: Graphene.Vec2): void;
/**
* Sets the value of the uniform `idx`.
*
* The uniform must be of vec3 type.
* @param idx index of the uniform
* @param value value to set the uniform too
*/
set_vec3(idx: number, value: Graphene.Vec3): void;
/**
* Sets the value of the uniform `idx`.
*
* The uniform must be of vec4 type.
* @param idx index of the uniform
* @param value value to set the uniform too
*/
set_vec4(idx: number, value: Graphene.Vec4): void;
/**
* Creates a new `GBytes` args from the current state of the
* given `builder`.
*
* Any uniforms of the shader that have not been explicitly set on
* the `builder` are zero-initialized.
*
* The given `GskShaderArgsBuilder` is reset once this function returns;
* you cannot call this function multiple times on the same `builder` instance.
*
* This function is intended primarily for bindings. C code should use
* [method`Gsk`.ShaderArgsBuilder.free_to_args].
* @returns the newly allocated buffer with all the args added to @builder
*/
to_args(): GLib.Bytes;
/**
* Decreases the reference count of a `GskShaderArgBuilder` by one.
*
* If the resulting reference count is zero, frees the builder.
*/
unref(): void;
}
/**
* The shadow parameters in a shadow node.
*/
class Shadow {
static $gtype: GObject.GType;
// Fields
color: Gdk.RGBA;
dx: number;
dy: number;
radius: number;
// Constructors
constructor(
properties?: Partial<{
color: Gdk.RGBA;
dx: number;
dy: number;
radius: number;
}>,
);
_init(...args: any[]): void;
}
/**
* Collects the parameters that are needed when stroking a path.
*/
class Stroke {
static $gtype: GObject.GType;
// Constructors
constructor(line_width: number);
_init(...args: any[]): void;
static ['new'](line_width: number): Stroke;
// Static methods
/**
* Checks if two strokes are identical.
* @param stroke1 the first stroke
* @param stroke2 the second stroke
*/
static equal(stroke1?: any | null, stroke2?: any | null): boolean;
// Methods
/**
* Creates a copy of a `GskStroke`.
* @returns a new `GskStroke`. Use [method@Gsk.Stroke.free] to free it
*/
copy(): Stroke;
/**
* Frees a `GskStroke`.
*/
free(): void;
/**
* Gets the dash array in use.
* @returns the dash array or `NULL` if the dash array is empty
*/
get_dash(): number[] | null;
/**
* Gets the dash offset.
* @returns the dash offset
*/
get_dash_offset(): number;
/**
* Gets the line cap used.
*
* See [enum`Gsk`.LineCap] for details.
* @returns the line cap
*/
get_line_cap(): LineCap;
/**
* Gets the line join used.
*
* See [enum`Gsk`.LineJoin] for details.
* @returns the line join
*/
get_line_join(): LineJoin;
/**
* Gets the line width used.
* @returns the line width
*/
get_line_width(): number;
/**
* Gets the miter limit.
* @returns the miter limit
*/
get_miter_limit(): number;
/**
* Sets the dash pattern to use.
*
* A dash pattern is specified by an array of alternating non-negative
* values. Each value provides the length of alternate "on" and "off"
* portions of the stroke.
*
* Each "on" segment will have caps applied as if the segment were a
* separate contour. In particular, it is valid to use an "on" length
* of 0 with [enum`Gsk`.LineCap.round] or [enum`Gsk`.LineCap.square]
* to draw dots or squares along a path.
*
* If `n_dash` is 0, if all elements in `dash` are 0, or if there are
* negative values in `dash,` then dashing is disabled.
*
* If `n_dash` is 1, an alternating "on" and "off" pattern with the
* single dash length provided is assumed.
*
* If `n_dash` is uneven, the dash array will be used with the first
* element in `dash` defining an "on" or "off" in alternating passes
* through the array.
*
* You can specify a starting offset into the dash with
* [method`Gsk`.Stroke.set_dash_offset].
* @param dash the array of dashes
*/
set_dash(dash?: number[] | null): void;
/**
* Sets the offset into the dash pattern where dashing should begin.
*
* This is an offset into the length of the path, not an index into
* the array values of the dash array.
*
* See [method`Gsk`.Stroke.set_dash] for more details on dashing.
* @param offset offset into the dash pattern
*/
set_dash_offset(offset: number): void;
/**
* Sets the line cap to be used when stroking.
*
* See [enum`Gsk`.LineCap] for details.
* @param line_cap the line cap
*/
set_line_cap(line_cap: LineCap | null): void;
/**
* Sets the line join to be used when stroking.
*
* See [enum`Gsk`.LineJoin] for details.
* @param line_join the line join to use
*/
set_line_join(line_join: LineJoin | null): void;
/**
* Sets the line width to be used when stroking.
*
* The line width must be > 0.
* @param line_width width of the line in pixels
*/
set_line_width(line_width: number): void;
/**
* Sets the miter limit to be used when stroking.
*
* The miter limit is the distance from the corner where sharp
* turns of joins get cut off.
*
* The limit is specfied in units of line width and must be non-negative.
*
* For joins of type [enum`Gsk`.LineJoin.miter] that exceed the miter limit,
* the join gets rendered as if it was of type [enum`Gsk`.LineJoin.bevel].
* @param limit the miter limit
*/
set_miter_limit(limit: number): void;
/**
* A helper function that sets the stroke parameters
* of a cairo context from a `GskStroke`.
* @param cr the cairo context to configure
*/
to_cairo(cr: cairo.Context): void;
}
/**
* Describes a 3D transform.
*
* Unlike `graphene_matrix_t`, `GskTransform` retains the steps in how
* a transform was constructed, and allows inspecting them. It is modeled
* after the way CSS describes transforms.
*
* `GskTransform` objects are immutable and cannot be changed after creation.
* This means code can safely expose them as properties of objects without
* having to worry about others changing them.
*/
class Transform {
static $gtype: GObject.GType;
// Constructors
constructor(properties?: Partial<{}>);
_init(...args: any[]): void;
static ['new'](): Transform;
// Static methods
/**
* Parses a given into a transform.
*
* Strings printed via [method`Gsk`.Transform.to_string]
* can be read in again successfully using this function.
*
* If `string` does not describe a valid transform, false
* is returned and `NULL` is put in `out_transform`.
* @param string the string to parse
*/
static parse(string: string): [boolean, Transform];
// Methods
/**
* Checks two transforms for equality.
* @param second the second transform
* @returns true if the two transforms perform the same operation
*/
equal(second?: Transform | null): boolean;
/**
* Returns the category this transform belongs to.
* @returns The category of the transform
*/
get_category(): TransformCategory;
/**
* Inverts the given transform.
*
* If `self` is not invertible, `NULL` is returned.
* Note that inverting `NULL` also returns `NULL`, which is
* the correct inverse of `NULL`. If you need to differentiate
* between those cases, you should check `self` is not `NULL`
* before calling this function.
*
* This function consumes `self`. Use [method`Gsk`.Transform.ref] first
* if you want to keep it around.
* @returns The inverted transform
*/
invert(): Transform | null;
/**
* Multiplies `next` with the given `matrix`.
*
* This function consumes `next`. Use [method`Gsk`.Transform.ref] first
* if you want to keep it around.
* @param matrix the matrix to multiply @next with
* @returns The new transform
*/
matrix(matrix: Graphene.Matrix): Transform;
/**
* Applies a perspective projection transform.
*
* This transform scales points in X and Y based on their Z value,
* scaling points with positive Z values away from the origin, and
* those with negative Z values towards the origin. Points
* on the z=0 plane are unchanged.
*
* This function consumes `next`. Use [method`Gsk`.Transform.ref] first
* if you want to keep it around.
* @param depth distance of the z=0 plane. Lower values give a more flattened pyramid and therefore a more pronounced perspective effect.
* @returns The new transform
*/
perspective(depth: number): Transform;
/**
* Converts the transform into a human-readable representation.
*
* The result of this function can later be parsed with
* [func`Gsk`.Transform.parse].
* @param string The string to print into
*/
print(string: GLib.String): void;
/**
* Acquires a reference on the given transform.
* @returns the transform with an additional reference
*/
ref(): Transform | null;
/**
* Rotates `next` by an angle around the Z axis.
*
* The rotation happens around the origin point of (0, 0).
*
* This function consumes `next`. Use [method`Gsk`.Transform.ref] first
* if you want to keep it around.
* @param angle the rotation angle, in degrees (clockwise)
* @returns The new transform
*/
rotate(angle: number): Transform | null;
/**
* Rotates `next` `angle` degrees around `axis`.
*
* For a rotation in 2D space, use [method`Gsk`.Transform.rotate]
*
* This function consumes `next`. Use [method`Gsk`.Transform.ref] first
* if you want to keep it around.
* @param angle the rotation angle, in degrees (clockwise)
* @param axis The rotation axis
* @returns The new transform
*/
rotate_3d(angle: number, axis: Graphene.Vec3): Transform | null;
/**
* Scales `next` in 2-dimensional space by the given factors.
*
* Use [method`Gsk`.Transform.scale_3d] to scale in all 3 dimensions.
*
* This function consumes `next`. Use [method`Gsk`.Transform.ref] first
* if you want to keep it around.
* @param factor_x scaling factor on the X axis
* @param factor_y scaling factor on the Y axis
* @returns The new transform
*/
scale(factor_x: number, factor_y: number): Transform | null;
/**
* Scales `next` by the given factors.
*
* This function consumes `next`. Use [method`Gsk`.Transform.ref] first
* if you want to keep it around.
* @param factor_x scaling factor on the X axis
* @param factor_y scaling factor on the Y axis
* @param factor_z scaling factor on the Z axis
* @returns The new transform
*/
scale_3d(factor_x: number, factor_y: number, factor_z: number): Transform | null;
/**
* Applies a skew transform.
*
* This function consumes `next`. Use [method`Gsk`.Transform.ref] first
* if you want to keep it around.
* @param skew_x skew factor, in degrees, on the X axis
* @param skew_y skew factor, in degrees, on the Y axis
* @returns The new transform
*/
skew(skew_x: number, skew_y: number): Transform | null;
/**
* Converts a transform to a 2D transformation matrix.
*
* `self` must be a 2D transformation. If you are not
* sure, use
*
* gsk_transform_get_category() >= GSK_TRANSFORM_CATEGORY_2D
*
* to check.
*
* The returned values are a subset of the full 4x4 matrix that
* is computed by [method`Gsk`.Transform.to_matrix] and have the
* following layout:
*
* ```
* | xx yx | | a b 0 |
* | xy yy | = | c d 0 |
* | dx dy | | tx ty 1 |
* ```
*
* This function can be used to convert between a `GskTransform`
* and a matrix type from other 2D drawing libraries, in particular
* Cairo.
*/
to_2d(): [number, number, number, number, number, number];
/**
* Converts a transform to 2D transformation factors.
*
* To recreate an equivalent transform from the factors returned
* by this function, use
*
* gsk_transform_skew (
* gsk_transform_scale (
* gsk_transform_rotate (
* gsk_transform_translate (NULL, &GRAPHENE_POINT_T (dx, dy)),
* angle),
* scale_x, scale_y),
* skew_x, skew_y)
*
* `self` must be a 2D transformation. If you are not sure, use
*
* gsk_transform_get_category() >= GSK_TRANSFORM_CATEGORY_2D
*
* to check.
*/
to_2d_components(): [number, number, number, number, number, number, number];
/**
* Converts a transform to 2D affine transformation factors.
*
* To recreate an equivalent transform from the factors returned
* by this function, use
*
* gsk_transform_scale (
* gsk_transform_translate (
* NULL,
* &GRAPHENE_POINT_T (dx, dy)),
* sx, sy)
*
* `self` must be a 2D affine transformation. If you are not
* sure, use
*
* gsk_transform_get_category() >= GSK_TRANSFORM_CATEGORY_2D_AFFINE
*
* to check.
*/
to_affine(): [number, number, number, number];
/**
* Computes the 4x4 matrix for the transform.
*
* The previous value of `out_matrix` will be ignored.
*/
to_matrix(): Graphene.Matrix;
/**
* Converts the transform into a human-readable string.
*
* The resulting string can be parsed with [func`Gsk`.Transform.parse].
*
* This is a wrapper around [method`Gsk`.Transform.print].
* @returns A new string for @self
*/
to_string(): string;
/**
* Converts a transform to a translation operation.
*
* `self` must be a 2D transformation. If you are not
* sure, use
*
* gsk_transform_get_category() >= GSK_TRANSFORM_CATEGORY_2D_TRANSLATE
*
* to check.
*/
to_translate(): [number, number];
/**
* Applies all the operations from `other` to `next`.
*
* This function consumes `next`. Use [method`Gsk`.Transform.ref] first
* if you want to keep it around.
* @param other transform to apply
* @returns The new transform
*/
transform(other?: Transform | null): Transform | null;
/**
* Transforms a rectangle using the given transform.
*
* The result is the bounding box containing the coplanar quad.
* @param rect the rectangle to transform
*/
transform_bounds(rect: Graphene.Rect): Graphene.Rect;
/**
* Transforms a point using the given transform.
* @param point the point to transform
*/
transform_point(point: Graphene.Point): Graphene.Point;
/**
* Translates `next` in 2-dimensional space by `point`.
*
* This function consumes `next`. Use [method`Gsk`.Transform.ref] first
* if you want to keep it around.
* @param point the point to translate the transform by
* @returns The new transform
*/
translate(point: Graphene.Point): Transform | null;
/**
* Translates `next` by `point`.
*
* This function consumes `next`. Use [method`Gsk`.Transform.ref] first
* if you want to keep it around.
* @param point the point to translate the transform by
* @returns The new transform
*/
translate_3d(point: Graphene.Point3D): Transform | null;
/**
* Releases a reference on the given transform.
*
* If the reference was the last, the resources associated to the `self` are
* freed.
*/
unref(): void;
}
type VulkanRendererClass = typeof VulkanRenderer;
/**
* Name of the imported GIR library
* `see` https://gitlab.gnome.org/GNOME/gjs/-/blob/master/gi/ns.cpp#L188
*/
const __name__: string;
/**
* Version of the imported GIR library
* `see` https://gitlab.gnome.org/GNOME/gjs/-/blob/master/gi/ns.cpp#L189
*/
const __version__: string;
}
export default Gsk;
}
declare module 'gi://Gsk' {
import Gsk40 from 'gi://Gsk?version=4.0';
export default Gsk40;
}
// END
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