Documentation
¶
Overview ¶
package theme defines custom theme for UI.
Index ¶
Constants ¶
const ( DefaultFontSize = 12.0 // in pt DefaultDPI = 72.0 )
const DefaultFontName = "GenShinGothic-Monospace-Normal.ttf"
DefaultFace returns this varints.
const UnitLh = unit.Unit(1 << 6)
UnitLh is 1 character cell height, same as sum of Ascent.Ceil and Descent.Ceil.
if use this as unit.Value v, v.String() method and theme.Pixels(v) will be occured panic. use this package theme's UnitString() and Pixels() insteadly.
Variables ¶
var ( // Default Palette for painting, Material Dark Theme. DefaultPalette = theme.Palette{ theme.Dark: image.Uniform{C: color.RGBA{0x00, 0x00, 0x00, 0xff}}, theme.Neutral: image.Uniform{C: color.RGBA{0x21, 0x21, 0x21, 0xff}}, theme.Light: image.Uniform{C: color.RGBA{0x42, 0x42, 0x42, 0xff}}, theme.Accent: image.Uniform{C: color.RGBA{0x29, 0xf6, 0xf6, 0xff}}, theme.Foreground: image.Uniform{C: color.RGBA{0xff, 0xff, 0xff, 0xff}}, theme.Background: image.Uniform{C: color.RGBA{0x30, 0x30, 0x30, 0xff}}, } // Dark Divider color. DarkDivider = theme.StaticColor(color.RGBA{0xff, 0xff, 0xff, 0x1f}) // Light Divider color. LightDivider = theme.StaticColor(color.RGBA{0x00, 0x00, 0x00, 0x1f}) // Neutral Divider color. NeutralDivider = theme.StaticColor(color.RGBA{0xbd, 0xbd, 0xbd, 0xff}) // Default theme for painting. Default = theme.Theme{ DPI: theme.DefaultDPI, FontFaceCatalog: defaultFontFaceCatalog, Palette: &DefaultPalette, } )
Functions ¶
func NewDefaultFace ¶
func NewDefaultFace(opt *FontFaceOptions) font.Face
return default monospace font face.
func ParseTruetypeFileFace ¶
func ParseTruetypeFileFace(file string, opt *FontFaceOptions) (font.Face, error)
parse truetype font file and return its font.Face.
Types ¶
type FontFaceOptions ¶
type FontFaceOptions struct {
// font size in point. if set 0 then use 12.0pt instead.
Size float64
// Dot per inch. if set 0 then use 72 DPI.
DPI float64
}
It is same as Options in golang.org/x/image/font/opentype but only DPI and Size fields exist to use easily.
func (*FontFaceOptions) TTFOptions ¶
func (opt *FontFaceOptions) TTFOptions() *opentype.FaceOptions
return reciever as opentype.Options. because nil TTF Options is ok, it may return nil if reciever is nil.
type OneFontFaceCatalog ¶
type OneFontFaceCatalog struct {
// contains filtered or unexported fields
}
OneFontCatalog serves only one font object and its face.
func NewOneFontFaceCatalog ¶
func NewOneFontFaceCatalog(fontfile string, o *FontFaceOptions) (*OneFontFaceCatalog, error)
return OneFontFaceCatalog which has only one font face specified by fontfile. return error if fontfile is not found
func (*OneFontFaceCatalog) AcquireFontFace ¶
func (cat *OneFontFaceCatalog) AcquireFontFace(theme.FontFaceOptions) font.Face
Implements theme.FontFaceCatalog interface. Return its font face with lock resource to prevent from using other goroutine. The argument theme.FontFaceOptions does not affect to returned font.Face. Be sure of calling ReleaseFontFace after use font.Face.
func (*OneFontFaceCatalog) ReleaseFontFace ¶
func (cat *OneFontFaceCatalog) ReleaseFontFace(theme.FontFaceOptions, font.Face)
Implements theme.FontFaceCatalog interface Make the font.Face returned from AcquireFontFace free to use. With any arguments, the use freed font.Face will not be changed, got by AcquireFontFace. Be sure of calling This after call AcquireFontFace.
func (*OneFontFaceCatalog) UpdateFontFaceOptions ¶
func (cat *OneFontFaceCatalog) UpdateFontFaceOptions(opt *FontFaceOptions)
update its font face using options. if opt has empty value. use previous value for that field.
Source Files
Directories