package painter

import "fyne.io/fyne/internal/painter"

Index ¶

• Constants
• func CachedFontFace(style fyne.TextStyle, opts *truetype.Options) font.Face
• func ClearFontCache()
• func GetAspect(img *canvas.Image) float32
• func PaintImage(img *canvas.Image, c fyne.Canvas, width, height int) image.Image
• func RenderedTextSize(text string, size int, style fyne.TextStyle) fyne.Size
• func SvgCacheMonitorTheme()

Constants ¶

const TextDPI = 78

TextDPI is a global constant that determines how text scales to interface sizes

Functions ¶

func CachedFontFace ¶

func CachedFontFace(style fyne.TextStyle, opts *truetype.Options) font.Face

CachedFontFace returns a font face held in memory. These are loaded from the current theme.

func ClearFontCache ¶

func ClearFontCache()

ClearFontCache is used to remove cached fonts in the case that we wish to re-load font faces

func GetAspect ¶

func GetAspect(img *canvas.Image) float32

GetAspect looks up an aspect ratio of an image

func PaintImage ¶

func PaintImage(img *canvas.Image, c fyne.Canvas, width, height int) image.Image

PaintImage renders a given fyne Image to a Go standard image

func RenderedTextSize ¶

func RenderedTextSize(text string, size int, style fyne.TextStyle) fyne.Size

RenderedTextSize looks up how bit a string would be if drawn on screen

func SvgCacheMonitorTheme ¶

func SvgCacheMonitorTheme()

SvgCacheMonitorTheme hooks up the SVG cache to listen for theme changes and resets the cache

Source Files ¶

font.go image.go svg_cache.go

Directories ¶