Vector Graphics

Vector Graphics (VG) module provides functions to render GPU-accelerated vector graphics on 2D or 3D space.

Types

• Luna::VG::IFontAtlas

  Represents one font glyph packer that packs font glyph data to one.

• Luna::VG::Vertex

  Describes one vertex to be drawn for the glyph.

• Luna::VG::ShapeDrawCall

  Describes one shape draw call.

• Luna::VG::IShapeDrawList

  Represents a draw list that contains shapes to be drawn.

• Luna::VG::TextGlyphArrangeResult

  Describes the arrange result of one text glyph.

• Luna::VG::TextLineArrangeResult

  Describes the arrange result of one text line that contains multiple glyphs.

• Luna::VG::TextArrangeResult

  Describes text arrange result returned by ITextArranger::arrange.

• Luna::VG::TextArrangeSection

  Describes parameters used to arrange one text section.

Enumerations

• Luna::VG::TextAlignment

  Specifies the test alignment side.

Constants

• constexpr f32 COMMAND_MOVE_TO

  The command code that begins one new path.

• constexpr f32 COMMAND_LINE_TO

  The command code that draws one line from the last point to the specified point.

• constexpr f32 COMMAND_CURVE_TO

  The command code that draws a quadratic Belzier curve to the specified point.

• constexpr f32 COMMAND_CIRCLE_Q1

  The command code that draws one circle part in the first quadrant.

• constexpr f32 COMMAND_CIRCLE_Q2

  The command code that draws one circle part in the second quadrant.

• constexpr f32 COMMAND_CIRCLE_Q3

  The command code that draws one circle part in the third quadrant.

• constexpr f32 COMMAND_CIRCLE_Q4

  The command code that draws one circle part in the fourth quadrant.

Functions

• Ref< IFontAtlas > new_font_atlas(Font::IFontFile font, u32 index, RHI::IDevice device=nullptr)

  Creates one new font atlas.

• Ref< IShapeDrawList > new_shape_draw_list(RHI::IDevice *device=nullptr)

  Creates a new shape draw list.

• R< Ref< IShapeRenderer > > new_fill_shape_renderer(RHI::ITexture *render_target)

  Creates a new shape renderer that draws filled shape contours.

• TextArrangeResult arrange_text(const c8 *text, usize text_len, Span< const TextArrangeSection > sections, const RectF &bounding_rect, TextAlignment vertical_alignment, TextAlignment horizontal_alignment)

  Arranges glyphs in the specified bounding rectangle.

• RV commit_text_arrange_result(const TextArrangeResult &result, Span< const TextArrangeSection > sections, IShapeDrawList *draw_list)

  Commits the text arrange result to the specicied draw list for rendering.