73 lines
2.2 KiB
Go
73 lines
2.2 KiB
Go
package layout
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import (
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/core"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/internal"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/theme"
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)
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// dividerDiamond is the ornament's size in DIPs.
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const dividerDiamond float32 = 7
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// DividerOptions configure a Divider.
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type DividerOptions struct {
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// Vertical draws a line down a row instead of across a column.
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Vertical bool
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// Label sits in the middle of a horizontal divider.
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Label string
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// Ornament draws the line in the ornament color with a single diamond in the middle; a Label replaces the diamond.
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Ornament bool
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}
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// Divider is a thin separating line. It never takes focus and its ornament is not read out.
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func Divider(c *ui.Context, opts DividerOptions) *ui.Element {
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if opts.Vertical && opts.Label != "" {
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panic("mujica: a vertical Divider cannot have a Label")
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}
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k := core.Tokens(c)
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line := k.Border
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if opts.Ornament {
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line = k.Ornament
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}
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if opts.Label == "" && !opts.Ornament {
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e := ui.Box(c).Background(line).Shrink(0).AlignSelf(ui.Stretch)
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if opts.Vertical {
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return e.Width(theme.BorderWidth)
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}
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return e.Height(theme.BorderWidth)
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}
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if opts.Label == "" && !opts.Vertical {
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gap := core.Density(c).Unit()*2 + dividerDiamond/2
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return ui.Box(c).Height(dividerDiamond).Shrink(0).AlignSelf(ui.Stretch).Draw(func(p *ui.Painter, r ui.Rect) {
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internal.RuleDiamond(p, r, gap, dividerDiamond, line)
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})
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}
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e := ui.Row(c).Gap(core.Density(c).Unit() * 2).Shrink(0).AlignSelf(ui.Stretch)
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if opts.Vertical {
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e.Column().AlignItems(ui.Center)
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}
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segment := func() {
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s := ui.Box(c).Grow(1).Background(line)
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if opts.Vertical {
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s.Width(theme.BorderWidth)
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} else {
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s.Height(theme.BorderWidth)
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}
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}
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return e.Children(func() {
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segment()
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if opts.Label != "" {
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ui.Text(c, opts.Label).Font(theme.SerifFont).FontSize(core.FontSize(c, theme.CaptionSize)).
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TextColor(k.TextMuted).SingleLine().Shrink(0)
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} else {
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ui.Box(c).Size(dividerDiamond, dividerDiamond).Shrink(0).Role(ui.RoleNone).
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Draw(func(p *ui.Painter, r ui.Rect) {
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p.FillPath(internal.Diamond(r.X+r.W/2, r.Y+r.H/2, r.W), k.Ornament)
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})
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}
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segment()
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})
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}
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