iceking2nd
b483360778
- 新增 light/dark 主题调色板与 Windows 注册表系统主题探测 - 偏好设置对话框：主题三选一 + 语言下拉(en/zh-CN/de)，即时生效 - 持久化 Language/Theme/AutoLockMinutes/MinimizeToTray 至 YAML 顶层 - 启动时按 config 中保存的语言初始化 i18n - About 对话框展示 version/runtime/项目地址/许可证 - 全部硬编码颜色迁移到 themePalette，为深色模式做准备
84 lines
2.1 KiB
Go
84 lines
2.1 KiB
Go
package ui
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import (
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"image"
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"time"
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"gioui.org/app"
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"gioui.org/layout"
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"gioui.org/op"
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"gioui.org/op/clip"
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"gioui.org/op/paint"
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"gioui.org/unit"
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"gioui.org/widget/material"
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)
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// toast is a transient top-of-window notification ("Copied", error
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// messages, etc). It is non-modal: drawing it does not consume pointer
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// input. Lifetime is governed by `until`; the next frame after the
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// deadline simply skips drawing.
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type toast struct {
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msg string
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until time.Time
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}
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const toastDuration = 1500 * time.Millisecond
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// Show stores the message and schedules an Invalidate after the toast
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// expires so the window redraws and removes it without waiting for the
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// next user interaction.
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func (t *toast) Show(msg string, w *app.Window) {
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t.msg = msg
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t.until = time.Now().Add(toastDuration)
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go func(deadline time.Time) {
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time.Sleep(time.Until(deadline) + 50*time.Millisecond)
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w.Invalidate()
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}(t.until)
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}
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// active reports whether the toast should be drawn this frame.
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func (t *toast) active() bool {
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return t.msg != "" && time.Now().Before(t.until)
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}
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// draw paints the toast as an overlay centered near the top of gtx.
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// Call AFTER laying out the rest of the frame so it stacks on top.
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func (t *toast) draw(gtx layout.Context, th *material.Theme) {
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if !t.active() {
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return
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}
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bg := activePalette.ToastBg
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fg := activePalette.ToastFg
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macro := op.Record(gtx.Ops)
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pad := layout.UniformInset(unit.Dp(10))
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dims := pad.Layout(gtx, func(gtx layout.Context) layout.Dimensions {
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lbl := material.Body2(th, t.msg)
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lbl.Color = fg
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return lbl.Layout(gtx)
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})
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call := macro.Stop()
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// Center horizontally near the top.
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x := (gtx.Constraints.Max.X - dims.Size.X) / 2
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if x < 0 {
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x = 0
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}
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y := gtx.Dp(unit.Dp(12))
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stack := op.Offset(image.Point{X: x, Y: y}).Push(gtx.Ops)
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rrect := clip.RRect{
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Rect: image.Rectangle{Max: dims.Size},
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SE: gtx.Dp(unit.Dp(6)),
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SW: gtx.Dp(unit.Dp(6)),
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NE: gtx.Dp(unit.Dp(6)),
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NW: gtx.Dp(unit.Dp(6)),
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}
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bgArea := rrect.Push(gtx.Ops)
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paint.ColorOp{Color: bg}.Add(gtx.Ops)
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paint.PaintOp{}.Add(gtx.Ops)
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bgArea.Pop()
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call.Add(gtx.Ops)
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stack.Pop()
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}
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