DrawCommand

Remarks

One flat struct rather than a class per primitive, with the fields a given kind does not use left at zero. A draw list is walked once per frame in order and never polymorphically dispatched on; a hierarchy would cost a pointer chase and an allocation per command to model something the consumer answers with a switch anyway.

Comparable by value, which is what makes the frame diff a memcmp rather than a visitor.

Fields and properties (22)

• public DrawCommandKind Kind

  What it draws.

• public float X

  Its left edge in document space.

• public float Y

  Its top edge.

• public float Width

  Its width.

• public float Height

  Its height.

• public Color4 Color

  Its colour, in linear space. Unused by the clip commands.

• public float Radius

  Its corner radius. Zero for square corners.

• public float Thickness

  A border's width. Zero for the other kinds.

• public int Offset

  Where this command's data starts in the side buffer its kind uses.

• public int Length

  How many entries of the side buffer this command uses.

• public int Font

  Which font, as an index into Fonts.

• public ulong Image

  Which texture, as the renderer's own name for one.

• public Rectangle Source

  Which part of the texture to draw, as UVs from the top-left.

• public NineSlice Slice

  How the destination is cut for a nine-slice, in document pixels.

• public NineSlice SourceSlice

  How Source is cut to match Slice, in UVs.

• public bool HollowCentre

  Whether a nine-slice leaves its middle cell undrawn.

• public float FontSize

  The font size in pixels, which is what scales a glyph's outline.

• public bool HasStyle

  Whether this box has a BoxStyle in Boxes, and where.

• public PathFillRule FillRule

  How a filled path decides what is inside it.

• public LineJoin Join

  How a stroked path turns a corner.

• public LineCap Cap

  How a stroked path's open ends are finished.

• public float MiterLimit

  How far a miter may reach, as a multiple of the half width.

Methods (1)

• public DrawCommand(DrawCommandKind Kind, float X, float Y, float Width, float Height, Color4 Color, float Radius, float Thickness)

  One thing to draw, in document space.

Used by (25)

• BatchTestsVixen.Ui.Tests
• DrawBatcherVixen.Ui
• DrawContextVixen.Ui
• DrawListVixen.Ui
• DrawListBuilderVixen.Ui
• DrawListTestsVixen.Ui.Tests
• FontFallbackTestsVixen.Ui.Tests
• IconAtlasTestsVixen.Ui.Tests
• NineSliceImageTestsVixen.Ui.Tests
• PathTessellationCacheTestsVixen.Ui.Tests
• PathTestsVixen.Ui.Tests
• RasterizerTestsVixen.Ui.Testing.Tests
• SurfaceTestsVixen.Ui.Tests
• SurfaceTestsVixen.Ui.Controls.Tests
• TessellationVixen.Ui
• TextTestsVixen.Ui.Tests
• TextWrapTestsVixen.Ui.Tests
• UiFrameLifetimeTestsVixen.Graphics.Golden.Tests
• UiGeometryBuilderVixen.Ui
• UiGeometryTestsVixen.Ui.Tests
• UiImageTestsVixen.Graphics.Golden.Tests
• VideoInUiTestsVixen.Video.Rendering.Tests
• ViewportTestsVixen.Ui.Controls.Advanced.Tests
• VisibilityTestsVixen.Ui.Testing.Tests
• ViewTestsVixen.Editor.NodeGraph.Tests