Std.Ui.Canvas

24 public declarations

• canvasInt -> Int -> Std.Ui.Canvas.Color -> Result[Std.Ui.Canvas.Canvas, Std.Ui.Canvas.CanvasError]

  A canvas with the default 16,777,216-pixel allocation budget.

  fn
• Canvas

  A bounded display list waiting to be rendered.

  type
• CanvasError

  Why a canvas or drawing command could not be admitted.

  type
• canvasWithinInt -> Int -> Std.Ui.Canvas.Color -> Int -> Result[Std.Ui.Canvas.Canvas, Std.Ui.Canvas.CanvasError]

  A canvas whose maximum pixel allocation is stated by the caller.

  fn
• canvasWithinLimitsInt -> Int -> Std.Ui.Canvas.Color -> Int -> Int -> Result[Std.Ui.Canvas.Canvas, Std.Ui.Canvas.CanvasError]

  A canvas with explicit pixel-allocation and display-list bounds.

  fn
• Color

  A straight-alpha red, green, blue, and alpha color.

  type
• Command

  One rectangle operation in the flat display list.

  type
• commandCount&Std.Ui.Canvas.Canvas -> Int

  How many drawing commands the canvas holds.

  fn
• dimensions&Std.Ui.Canvas.Canvas -> Std.Ui.Canvas.Size

  The logical dimensions of a canvas.

  fn
• fill&Std.Ui.Canvas.Canvas -> Std.Ui.Canvas.Rect -> Std.Ui.Canvas.Color -> Result[Std.Ui.Canvas.Canvas, Std.Ui.Canvas.CanvasError]

  The canvas after filling a rectangle.

  fn
• pixelAt&Std.Ui.Canvas.Surface -> Std.Ui.Canvas.Point -> Result[Option[Std.Ui.Canvas.Color], Std.Ui.Canvas.CanvasError]

  The color of one pixel, or nothing outside the surface.

  fn
• pointInt -> Int -> Std.Ui.Canvas.Point

  A point value.

  fn
• Point

  A logical point in the canvas coordinate space.

  type
• rectInt -> Int -> Int -> Int -> Std.Ui.Canvas.Rect

  A rectangle value.

  fn
• Rect

  A half-open rectangle: left and top are included; right and bottom are not.

  type
• render&Std.Ui.Canvas.Canvas -> Result[Std.Ui.Canvas.Surface, Std.Ui.Canvas.CanvasError]

  Render the display list into an opaque row-major RGBA framebuffer.

  fn
• repaint&Std.Ui.Canvas.Canvas -> &Std.Ui.Canvas.Surface -> &Array[Std.Ui.Canvas.Rect] -> Result[Std.Ui.Canvas.Surface, Std.Ui.Canvas.CanvasError]

  A surface with regions brought up to date with the display list.

  fn
• rgbUInt8 -> UInt8 -> UInt8 -> Std.Ui.Canvas.Color

  An opaque RGB color value.

  fn
• rgbaUInt8 -> UInt8 -> UInt8 -> UInt8 -> Std.Ui.Canvas.Color

  An RGBA color value.

  fn
• rgbaBytes&Std.Ui.Canvas.Surface -> Result[Bytes, Std.Ui.Canvas.CanvasError]

  The exact row-major RGBA bytes of a rendered surface.

  fn
• sizeInt -> Int -> Std.Ui.Canvas.Size

  A size value.

  fn
• Size

  A logical two-dimensional size.

  type
• Surface

  A row-major RGBA framebuffer produced opaque by `render`.

  type
• surfaceSize&Std.Ui.Canvas.Surface -> Result[Std.Ui.Canvas.Size, Std.Ui.Canvas.CanvasError]

  The logical dimensions of a rendered surface.

  fn