Module prelude

Modules

• backend_render_targets
• direct_contexts
• svg

Structs

• Canvas
  Canvas provides an interface for drawing, and how the drawing is clipped and transformed. Canvas contains a stack of Matrix and clip values.
• Color
• CubicResampler
  Specify b and c (each between 0…1) to create a shader that applies the corresponding cubic reconstruction filter to the image.
• Decoration
• FontArguments
• FontStyle
• FramebufferInfo
• GlyphClusterInfo
• HSV
• IPoint
• IRect
• LineMetrics
• LocalResourceProvider
  A resource provider that loads only local / inline base64 resources.
• M44
• Matrix
• Pixmap
• PlaceholderStyle
• Point
• PositionWithAffinity
• RGB
• RRect
• Rect
• SamplingOptions
• SaveLayerRec
  SaveLayerRec contains the state used to create the layer.
• TextBox
• TextDecoration
  Multiple decorations can be applied at once. Ex: Underline and overline is (0x1 | 0x2)
• TextShadow
• V3
• Weight
  Wrapper type of a font weight.
• Width
  Wrapper type for the width of a font.

Enums

• ArcSize
• BlendMode
• BlurStyle
• ClipOp
• ColorType
  Describes how pixel bits encode color. A pixel may be an alpha mask, a grayscale, RGB, or ARGB.
• Corner
• EncodedImageFormat
• FilterMode
• Format
• GradientShaderColors
  Type that represents either a slice of Color, or a slice of [Color4f] and a color space. Whenever this type is expected, it’s either possible to directly pass a &[Color] , or a tuple of type (&[Color4f], &ColorSpace).
• MipmapMode
• PaintStyle
• PathDirection
• PathFillType
• RectHeightStyle
• RectWidthStyle
• Slant
• SurfaceOrigin
• TextAlign
• TextBaseline
• TextDecorationStyle
• TextDirection
• TextHeightBehavior
• TileMode

Traits

• PointerWrapper
  This trait supports the conversion of a wrapper into it’s wrapped C/C++ pointer and back.

Functions

• blur
  Create a filter that blurs its input by the separate X and Y sigmas. The provided tile mode is used when the blur kernel goes outside the input image.
• raster_from_data
  Creates CPU-backed Image from pixel data described by info. The pixels data will not be copied.
• raster_n32_premul
  Allocates raster Surface. crate::Canvas returned by Surface draws directly into pixels. Allocates and zeroes pixel memory. Pixel memory size is height times width times four. Pixel memory is deleted when Surface is deleted.
• set_resource_cache_single_allocation_byte_limit
• set_resource_cache_total_bytes_limit
• wrap_backend_render_target
  Wraps a GPU-backed buffer into Surface. Caller must ensure backend_render_target is valid for the lifetime of returned Surface.

Type Aliases

• BackendRenderTarget
• Bitmap
  Bitmap describes a two-dimensional raster pixel array. Bitmap is built on ImageInfo, containing integer width and height, ColorType and [AlphaType] describing the pixel format, and ColorSpace describing the range of colors. Bitmap points to [PixelRef], which describes the physical array of pixels. ImageInfo bounds may be located anywhere fully inside [PixelRef] bounds.
• ColorSpace
• Data
• DirectContext
• FontCollection
• FontFeature
• FontMgr
• Image
  Image describes a two dimensional array of pixels to draw. The pixels may be decoded in a raster bitmap, encoded in a [Picture] or compressed data stream, or located in GPU memory as a GPU texture.
• ImageFilter
• ImageInfo
• Interface
• MaskFilter
  MaskFilter is the base class for object that perform transformations on the mask before drawing it. An example subclass is Blur.
• Paint
• Paragraph
• ParagraphBuilder
• ParagraphStyle
• Path
• RecordingContext
• RuntimeEffect
• Shader
• StrutStyle
• Surface
  Surface is responsible for managing the pixels that a canvas draws into. The pixels can be allocated either in CPU memory (a raster surface) or on the GPU (a RenderTarget surface). Surface takes care of allocating a Canvas that will draw into the surface. Call surface_get_canvas() to use that canvas (but don’t delete it, it is owned by the surface). Surface always has non-zero dimensions. If there is a request for a new surface, and either of the requested dimensions are zero, then None will be returned.
• TextIndex
• TextRange
• TextStyle
• Typeface
• TypefaceFontProvider
• Uniform