ZacharyZhang-NY
455f5f2a05
Speech bubbles, a chat log that follows its end, a composer that sends on Enter, typing dots, chat and channel lists, read receipts, reactions, emoji and sticker pickers, mentions, date and unread rules, system lines, member lists, user cards, a mailbox, mail reader and letter, a notification bell, call controls, a voice meter, attachment chips, link previews and polls. pixel's editor takes EnterSends; display's Bubble takes a Fill and exports EmojiSprite. data.List names its rows, which also lets typing choose one. layout.ScrollArea and input.TextArea hold still under Inert, and an inert scroll view leaves the Tab order until it wakes.
76 lines
1.7 KiB
Go
76 lines
1.7 KiB
Go
package display
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import (
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"fmt"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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type Side uint8
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const (
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Bottom Side = iota
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Top
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Left
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Right
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)
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type BubbleOptions struct {
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// Tail is the side the tail leaves from.
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Tail Side
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// At offsets the tail along its side; zero means 8.
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At int
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// Fill is the bubble's slot; zero means Lit.
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Fill pixel.Slot
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}
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const tailLen = 5
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// Bubble is a speech bubble with a tail around children.
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func Bubble(c *ui.Context, o BubbleOptions, children func()) *ui.Element {
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if o.Tail > Right {
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panic(fmt.Sprintf("display: unknown Side %d", o.Tail))
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}
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k := pixel.K(c)
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at, fill := pixel.Or("Bubble At", o.At, 8), slotOr(o.Fill, pixel.Lit)
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pad := [4]int{6, 8, 6, 8}
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pad[[...]int{Bottom: 2, Top: 0, Left: 3, Right: 1}[o.Tail]] += tailLen
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return ui.Column(c).Padding(k.D(pad[0]), k.D(pad[1]), k.D(pad[2]), k.D(pad[3])).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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x, y, w, h := 0, 0, g.W, g.H
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switch o.Tail {
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case Bottom:
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h -= tailLen
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case Top:
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y, h = tailLen, h-tailLen
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case Left:
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x, w = tailLen, w-tailLen
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case Right:
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w -= tailLen
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}
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if w < 6 || h < 6 {
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return
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}
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g.Frame(x, y, w, h, pixel.Notched, fill)
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for i := range tailLen {
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n := tailLen - i
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switch o.Tail {
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case Bottom:
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g.HLine(x+at-1, y+h-1+i, n+1, pixel.Edge)
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g.HLine(x+at, y+h-1+i, n-1, fill)
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case Top:
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g.HLine(x+at-1, y-i, n+1, pixel.Edge)
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g.HLine(x+at, y-i, n-1, fill)
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case Left:
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g.VLine(x-i, y+at-1, n+1, pixel.Edge)
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g.VLine(x-i, y+at, n-1, fill)
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case Right:
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g.VLine(x+w-1+i, y+at-1, n+1, pixel.Edge)
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g.VLine(x+w-1+i, y+at, n-1, fill)
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}
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}
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}).Children(children)
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}
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