nanovgo

package module

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Versions in this module

v0

v0.0.7

Sep 1, 2026

Changes in this version

type Paint

+ func BoxShadow(x, y, w, h, radius, blurRadius float32, color Color) Paint

v0.0.6

Jun 3, 2026

Changes in this version

type ImageFlags

+ const ImageNearest

v0.0.5

May 18, 2026

v0.0.4

May 15, 2026

v0.0.3

Apr 14, 2026

Changes in this version

type Context

+ func (c *Context) CreateFontWithIndex(name, filePath string, index int) int

+ func (c *Context) CreateFontWithIndexFromMemory(name string, data []byte, index int) int

v0.0.2

Apr 7, 2026

v0.0.1

Apr 5, 2026

Changes in this version

+ const Kappa90

+ const PI

+ func DegToRad(deg float32) float32

+ func RadToDeg(rad float32) float32

+ type Align int

+ const AlignBaseline

+ const AlignBottom

+ const AlignCenter

+ const AlignLeft

+ const AlignMiddle

+ const AlignRight

+ const AlignTop

+ type Color struct

+ A float32

+ B float32

+ G float32

+ R float32

+ func HSL(h, s, l float32) Color

+ func HSLA(h, s, l float32, a uint8) Color

+ func LerpRGBA(c0, c1 Color, u float32) Color

+ func MONO(i, alpha uint8) Color

+ func MONOf(i, alpha float32) Color

+ func RGB(r, g, b uint8) Color

+ func RGBA(r, g, b, a uint8) Color

+ func RGBAf(r, g, b, a float32) Color

+ func RGBf(r, g, b float32) Color

+ func (c Color) ContrastingColor() Color

+ func (c Color) HSLA() (h, s, l, a float32)

+ func (c Color) List() []float32

+ func (c Color) Luminance() float32

+ func (c Color) PreMultiply() Color

+ func (c Color) TransRGBA(a uint8) Color

+ func (c Color) TransRGBAf(a float32) Color

+ type Context struct

+ func NewContext(glCtx GlContext, flags CreateFlags) (*Context, error)

+ func (c *Context) Arc(cx, cy, r, a0, a1 float32, dir Direction)

+ func (c *Context) ArcTo(x1, y1, x2, y2, radius float32)

+ func (c *Context) BeginFrame(windowWidth, windowHeight int, devicePixelRatio float32)

+ func (c *Context) BeginPath()

+ func (c *Context) BezierTo(c1x, c1y, c2x, c2y, x, y float32)

+ func (c *Context) Block(block func())

+ func (c *Context) CancelFrame()

+ func (c *Context) Circle(cx, cy, r float32)

+ func (c *Context) ClosePath()

+ func (c *Context) CreateFont(name, filePath string) int

+ func (c *Context) CreateFontFromMemory(name string, data []byte, freeData uint8) int

+ func (c *Context) CreateImage(filePath string, flags ImageFlags) int

+ func (c *Context) CreateImageFromGoImage(imageFlag ImageFlags, img image.Image) int

+ func (c *Context) CreateImageFromMemory(flags ImageFlags, data []byte) int

+ func (c *Context) CreateImageRGBA(w, h int, imageFlags ImageFlags, data []byte) int

+ func (c *Context) CurrentTransform() TransformMatrix

+ func (c *Context) DebugDumpPathCache()

+ func (c *Context) Delete()

+ func (c *Context) DeleteImage(img int)

+ func (c *Context) Ellipse(cx, cy, rx, ry float32)

+ func (c *Context) EndFrame()

+ func (c *Context) Fill()

+ func (c *Context) FindFont(name string) int

+ func (c *Context) FontBlur() float32

+ func (c *Context) FontFace() string

+ func (c *Context) FontFaceID() int

+ func (c *Context) FontSize() float32

+ func (c *Context) GlobalAlpha() float32

+ func (c *Context) ImageSize(img int) (int, int, error)

+ func (c *Context) IntersectScissor(x, y, w, h float32)

+ func (c *Context) LineCap() LineCap

+ func (c *Context) LineJoin() LineCap

+ func (c *Context) LineTo(x, y float32)

+ func (c *Context) MiterLimit() float32

+ func (c *Context) MoveTo(x, y float32)

+ func (c *Context) PathWinding(winding Winding)

+ func (c *Context) QuadTo(cx, cy, x, y float32)

+ func (c *Context) Rect(x, y, w, h float32)

+ func (c *Context) Reset()

+ func (c *Context) ResetScissor()

+ func (c *Context) ResetTransform()

+ func (c *Context) Restore()

+ func (c *Context) Rotate(angle float32)

+ func (c *Context) RoundedRect(x, y, w, h, r float32)

+ func (c *Context) Save()

+ func (c *Context) Scale(x, y float32)

+ func (c *Context) Scissor(x, y, w, h float32)

+ func (c *Context) SetFillColor(color Color)

+ func (c *Context) SetFillPaint(paint Paint)

+ func (c *Context) SetFontBlur(blur float32)

+ func (c *Context) SetFontFace(font string)

+ func (c *Context) SetFontFaceID(font int)

+ func (c *Context) SetFontSize(size float32)

+ func (c *Context) SetGlobalAlpha(alpha float32)

+ func (c *Context) SetLineCap(cap LineCap)

+ func (c *Context) SetLineJoin(joint LineCap)

+ func (c *Context) SetMiterLimit(limit float32)

+ func (c *Context) SetStrokeColor(color Color)

+ func (c *Context) SetStrokePaint(paint Paint)

+ func (c *Context) SetStrokeWidth(width float32)

+ func (c *Context) SetTextAlign(align Align)

+ func (c *Context) SetTextLetterSpacing(spacing float32)

+ func (c *Context) SetTextLineHeight(lineHeight float32)

+ func (c *Context) SetTransform(t TransformMatrix)

+ func (c *Context) SkewX(angle float32)

+ func (c *Context) SkewY(angle float32)

+ func (c *Context) Stroke()

+ func (c *Context) StrokeWidth() float32

+ func (c *Context) Text(x, y float32, str string) float32

+ func (c *Context) TextAlign() Align

+ func (c *Context) TextBounds(x, y float32, str string) (float32, []float32)

+ func (c *Context) TextBox(x, y, breakRowWidth float32, str string)

+ func (c *Context) TextBoxBounds(x, y, breakRowWidth float32, str string) [4]float32

+ func (c *Context) TextBreakLines(str string, breakRowWidth float32) []TextRow

+ func (c *Context) TextBreakLinesRune(runes []rune, breakRowWidth float32) []TextRow

+ func (c *Context) TextGlyphPositions(x, y float32, str string) []GlyphPosition

+ func (c *Context) TextGlyphPositionsRune(x, y float32, runes []rune) []GlyphPosition

+ func (c *Context) TextLetterSpacing() float32

+ func (c *Context) TextLineHeight() float32

+ func (c *Context) TextMetrics() (float32, float32, float32)

+ func (c *Context) TextRune(x, y float32, runes []rune) float32

+ func (c *Context) Translate(x, y float32)

+ func (c *Context) UpdateImage(img int, data []byte) error

+ func (cx *Context) SetTransformByValue(a, b, c, d, e, f float32)

+ type CreateFlags int

+ const AntiAlias

+ const Debug

+ const StencilStrokes

+ type Direction int

+ const Clockwise

+ const CounterClockwise

+ type Float float32 — darwin/amd64, linux/amd64, windows/amd64

+ type GlContext interface

+ GetProcAddress func(name string) (uintptr, error)

+ type GlyphPosition struct

+ Index int

+ MaxX float32

+ MinX float32

+ Runes []rune

+ X float32

+ type ImageFlags int

+ const ImageFlippy

+ const ImageGenerateMipmaps

+ const ImageNoDelete

+ const ImagePreMultiplied

+ const ImageRepeatX

+ const ImageRepeatY

+ type LineCap int

+ const Bevel

+ const Butt

+ const Miter

+ const Round

+ const Square

+ type Paint struct

+ func BoxGradient(x, y, w, h, r, f float32, iColor, oColor Color) Paint

+ func ImagePattern(cx, cy, w, h, angle float32, img int, alpha float32) Paint

+ func LinearGradient(sx, sy, ex, ey float32, iColor, oColor Color) Paint

+ func RadialGradient(cx, cy, inR, outR float32, iColor, oColor Color) Paint

+ type TextRow struct

+ EndIndex int

+ MaxX float32

+ MinX float32

+ NextIndex int

+ Runes []rune

+ StartIndex int

+ Width float32

+ type TransformMatrix [6]float32

+ func IdentityMatrix() TransformMatrix

+ func RotateMatrix(a float32) TransformMatrix

+ func ScaleMatrix(sx, sy float32) TransformMatrix

+ func SkewXMatrix(a float32) TransformMatrix

+ func SkewYMatrix(a float32) TransformMatrix

+ func TranslateMatrix(tx, ty float32) TransformMatrix

+ func (t TransformMatrix) Inverse() TransformMatrix

+ func (t TransformMatrix) Multiply(s TransformMatrix) TransformMatrix

+ func (t TransformMatrix) PreMultiply(s TransformMatrix) TransformMatrix

+ func (t TransformMatrix) ToMat3x4() []float32

+ func (t TransformMatrix) TransformPoint(sx, sy float32) (dx, dy float32)

+ type Winding int

+ const Hole

+ const Solid

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