zntg/ui/palette.go

package ui

import (
	"image/color"

	"opslag.de/schobers/zntg/allg5"
)

type Palette interface {
	Primary() allg5.Color
	PrimaryHighlight() allg5.Color
	PrimaryTransparent() allg5.Color
	Lightest() allg5.Color
	Darker() allg5.Color
	Darkest() allg5.Color
	Disabled() allg5.Color
}

type palette struct {
	primary  allg5.Color
	primaryH allg5.Color
	primaryT allg5.Color
	lightest allg5.Color
	darker   allg5.Color
	darkest  allg5.Color
	disabled allg5.Color
}

func (p *palette) Primary() allg5.Color {
	return p.primary
}

func (p *palette) PrimaryHighlight() allg5.Color {
	return p.primaryH
}

func (p *palette) PrimaryTransparent() allg5.Color {
	return p.primaryT
}

func (p *palette) Lightest() allg5.Color {
	return p.lightest
}

func (p *palette) Darker() allg5.Color {
	return p.darker
}

func (p *palette) Darkest() allg5.Color {
	return p.darkest
}

func (p *palette) Disabled() allg5.Color {
	return p.disabled
}

func NewColor(c *color.RGBA) allg5.Color {
	return allg5.NewColorAlpha(c.R, c.G, c.B, c.A)
}

func NewColorAlpha(c *color.RGBA, a uint8) allg5.Color {
	return allg5.NewColorAlpha(c.R, c.G, c.B, a)
}

func DefaultPalette() Palette {
	var primary = Blue500
	return &palette{
		primary:  NewColor(primary),
		primaryH: NewColor(Blue400),
		primaryT: NewColorAlpha(primary, 96),
		lightest: allg5.NewColor(0xff, 0xff, 0xff),
		darker:   allg5.NewColorAlpha(0, 0, 0, 188),
		darkest:  allg5.NewColorAlpha(0, 0, 0, 222),
		disabled: allg5.NewColorAlpha(0x1f, 0x1f, 0x1f, 0x1f),
	}
}