mirror of
https://git.sr.ht/~eliasnaur/gio
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apps/gophers: split main into App and UI and add BenchmarkUI
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
@@ -0,0 +1,583 @@
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// SPDX-License-Identifier: Unlicense OR MIT
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package main
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// A Gio program that displays Go contributors from GitHub. See https://gioui.org for more information.
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import (
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"fmt"
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"image"
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"image/color"
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"runtime"
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"golang.org/x/image/draw"
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_ "image/jpeg"
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_ "image/png"
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_ "net/http/pprof"
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"gioui.org/ui"
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gdraw "gioui.org/ui/draw"
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"gioui.org/ui/f32"
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"gioui.org/ui/gesture"
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"gioui.org/ui/input"
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"gioui.org/ui/key"
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"gioui.org/ui/layout"
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"gioui.org/ui/measure"
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"gioui.org/ui/pointer"
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"gioui.org/ui/system"
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"gioui.org/ui/text"
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"gioui.org/ui/widget"
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"golang.org/x/exp/shiny/iconvg"
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"github.com/google/go-github/v24/github"
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"golang.org/x/image/font/gofont/gobold"
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"golang.org/x/image/font/gofont/goitalic"
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"golang.org/x/image/font/gofont/gomono"
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"golang.org/x/image/font/gofont/goregular"
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"golang.org/x/image/font/sfnt"
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"golang.org/x/exp/shiny/materialdesign/icons"
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)
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type UI struct {
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faces measure.Faces
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fab *ActionButton
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usersList *layout.List
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users []*user
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userClicks []gesture.Click
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selectedUser *userPage
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edit, edit2 *text.Editor
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invalidate func()
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fetchCommits func(u string)
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// Profiling.
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profiling bool
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profile system.ProfileEvent
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lastMallocs uint64
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}
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type userPage struct {
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config ui.Config
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faces measure.Faces
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invalidate func()
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user *user
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commitsList *layout.List
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commits []*github.Commit
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}
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type user struct {
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name string
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login string
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company string
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avatar image.Image
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}
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type icon struct {
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src []byte
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size ui.Value
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// Cached values.
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img image.Image
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imgSize int
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}
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type ActionButton struct {
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face text.Face
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Open bool
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icons []*icon
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sendIco *icon
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}
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var fonts struct {
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regular *sfnt.Font
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bold *sfnt.Font
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italic *sfnt.Font
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mono *sfnt.Font
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}
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var theme struct {
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text ui.MacroOp
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tertText ui.MacroOp
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brand ui.MacroOp
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white ui.MacroOp
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}
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func colorMaterial(ops *ui.Ops, color color.RGBA) ui.MacroOp {
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var mat ui.MacroOp
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mat.Record(ops)
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gdraw.ColorOp{Color: color}.Add(ops)
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mat.Stop()
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return mat
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}
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func init() {
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fonts.regular = mustLoadFont(goregular.TTF)
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fonts.bold = mustLoadFont(gobold.TTF)
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fonts.italic = mustLoadFont(goitalic.TTF)
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fonts.mono = mustLoadFont(gomono.TTF)
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var ops ui.Ops
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theme.text = colorMaterial(&ops, rgb(0x333333))
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theme.tertText = colorMaterial(&ops, rgb(0xbbbbbb))
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theme.brand = colorMaterial(&ops, rgb(0x62798c))
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theme.white = colorMaterial(&ops, rgb(0xffffff))
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}
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func newUI(invalidate func(), fetchCommits func(string)) *UI {
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u := &UI{
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invalidate: invalidate,
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fetchCommits: fetchCommits,
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}
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u.usersList = &layout.List{
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Axis: layout.Vertical,
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}
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u.fab = &ActionButton{
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face: u.face(fonts.regular, 11),
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sendIco: &icon{src: icons.ContentSend, size: ui.Dp(24)},
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icons: []*icon{},
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}
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u.edit2 = &text.Editor{
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Face: u.face(fonts.italic, 14),
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//Alignment: text.End,
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SingleLine: true,
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Hint: "Hint",
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HintMaterial: theme.tertText,
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Material: theme.text,
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}
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u.edit2.SetText("Single line editor. Edit me!")
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u.edit = &text.Editor{
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Face: u.face(fonts.regular, 16),
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Material: theme.text,
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//Alignment: text.End,
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//SingleLine: true,
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}
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u.edit.SetText(longTextSample)
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return u
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}
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func mustLoadFont(fontData []byte) *sfnt.Font {
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fnt, err := sfnt.Parse(fontData)
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if err != nil {
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panic("failed to load font")
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}
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return fnt
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}
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func rgb(c uint32) color.RGBA {
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return argb((0xff << 24) | c)
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}
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func argb(c uint32) color.RGBA {
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return color.RGBA{A: uint8(c >> 24), R: uint8(c >> 16), G: uint8(c >> 8), B: uint8(c)}
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}
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func (u *UI) face(f *sfnt.Font, size float32) text.Face {
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return u.faces.For(f, ui.Sp(size))
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}
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func (u *UI) layoutTimings(c ui.Config, q input.Queue, ops *ui.Ops, cs layout.Constraints) layout.Dimens {
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if !u.profiling {
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return layout.Dimens{}
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}
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for e, ok := q.Next(u); ok; e, ok = q.Next(u) {
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if e, ok := e.(system.ProfileEvent); ok {
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u.profile = e
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}
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}
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system.ProfileOp{Key: u}.Add(ops)
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var mstats runtime.MemStats
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runtime.ReadMemStats(&mstats)
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mallocs := mstats.Mallocs - u.lastMallocs
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u.lastMallocs = mstats.Mallocs
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al := layout.Align{Alignment: layout.NE}
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cs = al.Begin(ops, cs)
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in := layout.Inset{Top: ui.Dp(16)}
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cs = in.Begin(c, ops, cs)
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txt := fmt.Sprintf("m: %d %s", mallocs, u.profile.Timings)
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dims := text.Label{Material: theme.text, Face: u.face(fonts.mono, 10), Text: txt}.Layout(ops, cs)
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dims = in.End(dims)
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return al.End(dims)
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}
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func (u *UI) Layout(c ui.Config, q input.Queue, ops *ui.Ops, cs layout.Constraints) layout.Dimens {
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u.faces.Reset(c)
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for i := range u.userClicks {
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click := &u.userClicks[i]
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for _, e := range click.Events(q) {
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if e.Type == gesture.TypeClick {
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u.selectedUser = u.newUserPage(u.users[i])
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}
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}
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}
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var dims layout.Dimens
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if u.selectedUser == nil {
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dims = u.layoutUsers(c, q, ops, cs)
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} else {
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dims = u.selectedUser.Layout(c, q, ops, cs)
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}
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u.layoutTimings(c, q, ops, cs)
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return dims
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}
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func (u *UI) newUserPage(user *user) *userPage {
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up := &userPage{
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faces: u.faces,
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invalidate: u.invalidate,
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user: user,
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commitsList: &layout.List{Axis: layout.Vertical},
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}
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u.fetchCommits(user.login)
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return up
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}
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func (up *userPage) Layout(c ui.Config, q input.Queue, ops *ui.Ops, cs layout.Constraints) layout.Dimens {
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l := up.commitsList
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if l.Dragging() {
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key.HideInputOp{}.Add(ops)
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}
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for l.Init(c, q, ops, cs, len(up.commits)); l.More(); l.Next() {
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l.Elem(up.commit(c, ops, l.Constraints(), l.Index()))
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}
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return l.Layout()
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}
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func (up *userPage) commit(c ui.Config, ops *ui.Ops, cs layout.Constraints, index int) layout.Dimens {
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u := up.user
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msg := up.commits[index].GetMessage()
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label := text.Label{Material: theme.text, Face: up.faces.For(fonts.regular, ui.Sp(12)), Text: msg}
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in := layout.Inset{Top: ui.Dp(16), Right: ui.Dp(8), Left: ui.Dp(8)}
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cs = in.Begin(c, ops, cs)
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f := (&layout.Flex{Axis: layout.Horizontal, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.Start}).Init(ops, cs)
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cs = f.Rigid()
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sz := c.Px(ui.Dp(48))
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cc := clipCircle{}
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cs = cc.Begin(ops, cs)
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cs = layout.RigidConstraints(cs.Constrain(image.Point{X: sz, Y: sz}))
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dims := widget.Image{Src: u.avatar, Rect: u.avatar.Bounds()}.Layout(c, ops, cs)
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dims = cc.End(dims)
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c1 := f.End(dims)
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cs = f.Flexible(1)
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cs.Width.Min = cs.Width.Max
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in2 := layout.Inset{Left: ui.Dp(8)}
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cs = in2.Begin(c, ops, cs)
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dims = label.Layout(ops, cs)
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dims = in2.End(dims)
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c2 := f.End(dims)
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dims = f.Layout(c1, c2)
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return in.End(dims)
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}
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func (u *UI) layoutUsers(c ui.Config, q input.Queue, ops *ui.Ops, cs layout.Constraints) layout.Dimens {
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st := (&layout.Stack{Alignment: layout.Start}).Init(ops, cs)
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cs = st.Rigid()
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al := layout.Align{Alignment: layout.SE}
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in := layout.UniformInset(ui.Dp(16))
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cs = in.Begin(c, ops, al.Begin(ops, cs))
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dims := u.fab.Layout(c, q, ops, cs)
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dims = al.End(in.End(dims))
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c2 := st.End(dims)
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cs = st.Expand()
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{
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f := (&layout.Flex{Axis: layout.Vertical, MainAxisAlignment: layout.Start}).Init(ops, cs)
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cs = f.Rigid()
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{
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cs.Width.Min = cs.Width.Max
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in := layout.UniformInset(ui.Dp(16))
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sz := c.Px(ui.Dp(200))
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cs = layout.RigidConstraints(cs.Constrain(image.Point{X: sz, Y: sz}))
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dims = u.edit.Layout(c, q, ops, in.Begin(c, ops, cs))
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dims = in.End(dims)
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}
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c1 := f.End(dims)
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cs = f.Rigid()
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{
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cs.Width.Min = cs.Width.Max
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in := layout.Inset{Bottom: ui.Dp(16), Left: ui.Dp(16), Right: ui.Dp(16)}
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dims = u.edit2.Layout(c, q, ops, in.Begin(c, ops, cs))
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dims = in.End(dims)
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}
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c2 := f.End(dims)
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cs = f.Rigid()
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{
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cs.Width.Min = cs.Width.Max
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s := layout.Stack{Alignment: layout.Center}
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s.Init(ops, cs)
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cs = s.Rigid()
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in := layout.Inset{Top: ui.Dp(16), Right: ui.Dp(8), Bottom: ui.Dp(8), Left: ui.Dp(8)}
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grey := colorMaterial(ops, rgb(0x888888))
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lbl := text.Label{Material: grey, Face: u.face(fonts.regular, 11), Text: "GOPHERS"}
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dims = in.End(lbl.Layout(ops, in.Begin(c, ops, cs)))
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c2 := s.End(dims)
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c1 := s.End(fill{colorMaterial(ops, rgb(0xf2f2f2))}.Layout(ops, s.Expand()))
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dims = s.Layout(c1, c2)
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}
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c3 := f.End(dims)
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cs = f.Flexible(1)
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cs.Width.Min = cs.Width.Max
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dims = u.layoutContributors(c, q, ops, cs)
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c4 := f.End(dims)
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dims = f.Layout(c1, c2, c3, c4)
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}
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c1 := st.End(dims)
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return st.Layout(c1, c2)
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}
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func (a *ActionButton) Layout(c ui.Config, q input.Queue, ops *ui.Ops, cs layout.Constraints) layout.Dimens {
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f := layout.Flex{Axis: layout.Vertical, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.End}
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f.Init(ops, cs)
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cs = f.Rigid()
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in := layout.Inset{Top: ui.Dp(4)}
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cs = in.Begin(c, ops, cs)
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dims := fab(ops, cs, a.sendIco.image(c), theme.brand, c.Px(ui.Dp(56)))
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pointer.EllipseAreaOp{Rect: image.Rectangle{Max: dims.Size}}.Add(ops)
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dims = in.End(dims)
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return f.Layout(f.End(dims))
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}
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func (u *UI) layoutContributors(c ui.Config, q input.Queue, ops *ui.Ops, cs layout.Constraints) layout.Dimens {
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l := u.usersList
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if l.Dragging() {
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key.HideInputOp{}.Add(ops)
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}
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for l.Init(c, q, ops, cs, len(u.users)); l.More(); l.Next() {
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l.Elem(u.user(c, ops, l.Constraints(), l.Index()))
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}
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return l.Layout()
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}
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func (u *UI) user(c ui.Config, ops *ui.Ops, cs layout.Constraints, index int) layout.Dimens {
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user := u.users[index]
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elem := layout.Flex{Axis: layout.Vertical, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.Start}
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elem.Init(ops, cs)
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cs = elem.Rigid()
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var dims layout.Dimens
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{
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in := layout.UniformInset(ui.Dp(8))
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cs = in.Begin(c, ops, cs)
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f := centerRowOpts()
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f.Init(ops, cs)
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cs = f.Rigid()
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{
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in := layout.Inset{Right: ui.Dp(8)}
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cc := clipCircle{}
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cs = cc.Begin(ops, in.Begin(c, ops, cs))
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sz := image.Point{X: c.Px(ui.Dp(48)), Y: c.Px(ui.Dp(48))}
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cs = layout.RigidConstraints(cs.Constrain(sz))
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dims = widget.Image{Src: user.avatar, Rect: user.avatar.Bounds()}.Layout(c, ops, cs)
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dims = in.End(cc.End(dims))
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}
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c1 := f.End(dims)
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cs = f.Rigid()
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{
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f := column()
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f.Init(ops, cs)
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cs = f.Rigid()
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{
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f := baseline()
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f.Init(ops, cs)
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cs = f.Rigid()
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dims = text.Label{Material: theme.text, Face: u.face(fonts.regular, 13), Text: user.name}.Layout(ops, cs)
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c1 := f.End(dims)
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cs = f.Flexible(1)
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cs.Width.Min = cs.Width.Max
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al := layout.Align{Alignment: layout.E}
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in := layout.Inset{Left: ui.Dp(2)}
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cs = in.Begin(c, ops, al.Begin(ops, cs))
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dims = text.Label{Material: theme.text, Face: u.face(fonts.regular, 10), Text: "3 hours ago"}.Layout(ops, cs)
|
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dims = al.End(in.End(dims))
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c2 := f.End(dims)
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dims = f.Layout(c1, c2)
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}
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c1 := f.End(dims)
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cs = f.Rigid()
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in := layout.Inset{Top: ui.Dp(4)}
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cs = in.Begin(c, ops, cs)
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dims = text.Label{Material: theme.tertText, Face: u.face(fonts.regular, 12), Text: user.company}.Layout(ops, cs)
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dims = in.End(dims)
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c2 := f.End(dims)
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dims = f.Layout(c1, c2)
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}
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c2 := f.End(dims)
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dims = f.Layout(c1, c2)
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dims = in.End(dims)
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pointer.RectAreaOp{Rect: image.Rectangle{Max: dims.Size}}.Add(ops)
|
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click := &u.userClicks[index]
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click.Add(ops)
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}
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c1 := elem.End(dims)
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return elem.Layout(c1)
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}
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type fill struct {
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material ui.MacroOp
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}
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func (f fill) Layout(ops *ui.Ops, cs layout.Constraints) layout.Dimens {
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d := image.Point{X: cs.Width.Max, Y: cs.Height.Max}
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dr := f32.Rectangle{
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Max: f32.Point{X: float32(d.X), Y: float32(d.Y)},
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}
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f.material.Add(ops)
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gdraw.DrawOp{Rect: dr}.Add(ops)
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return layout.Dimens{Size: d, Baseline: d.Y}
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}
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func column() layout.Flex {
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return layout.Flex{Axis: layout.Vertical, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.Start}
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}
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func centerRowOpts() layout.Flex {
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return layout.Flex{Axis: layout.Horizontal, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.Center}
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}
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func baseline() layout.Flex {
|
||||
return layout.Flex{Axis: layout.Horizontal, CrossAxisAlignment: layout.Baseline}
|
||||
}
|
||||
|
||||
type clipCircle struct {
|
||||
m ui.MacroOp
|
||||
ops *ui.Ops
|
||||
}
|
||||
|
||||
func (c *clipCircle) Begin(ops *ui.Ops, cs layout.Constraints) layout.Constraints {
|
||||
c.ops = ops
|
||||
c.m.Record(ops)
|
||||
return cs
|
||||
}
|
||||
|
||||
func (c *clipCircle) End(dims layout.Dimens) layout.Dimens {
|
||||
c.m.Stop()
|
||||
ops := c.ops
|
||||
max := dims.Size.X
|
||||
if dy := dims.Size.Y; dy > max {
|
||||
max = dy
|
||||
}
|
||||
szf := float32(max)
|
||||
rr := szf * .5
|
||||
var stack ui.StackOp
|
||||
stack.Push(ops)
|
||||
rrect(ops, szf, szf, rr, rr, rr, rr)
|
||||
c.m.Add(ops)
|
||||
stack.Pop()
|
||||
return dims
|
||||
}
|
||||
|
||||
func fab(ops *ui.Ops, cs layout.Constraints, ico image.Image, mat ui.MacroOp, size int) layout.Dimens {
|
||||
dp := image.Point{X: (size - ico.Bounds().Dx()) / 2, Y: (size - ico.Bounds().Dy()) / 2}
|
||||
dims := image.Point{X: size, Y: size}
|
||||
rr := float32(size) * .5
|
||||
rrect(ops, float32(size), float32(size), rr, rr, rr, rr)
|
||||
mat.Add(ops)
|
||||
gdraw.DrawOp{Rect: f32.Rectangle{Max: f32.Point{X: float32(size), Y: float32(size)}}}.Add(ops)
|
||||
gdraw.ImageOp{Src: ico, Rect: ico.Bounds()}.Add(ops)
|
||||
gdraw.DrawOp{
|
||||
Rect: toRectF(ico.Bounds().Add(dp)),
|
||||
}.Add(ops)
|
||||
return layout.Dimens{Size: dims}
|
||||
}
|
||||
|
||||
func toRectF(r image.Rectangle) f32.Rectangle {
|
||||
return f32.Rectangle{
|
||||
Min: f32.Point{X: float32(r.Min.X), Y: float32(r.Min.Y)},
|
||||
Max: f32.Point{X: float32(r.Max.X), Y: float32(r.Max.Y)},
|
||||
}
|
||||
}
|
||||
|
||||
func (ic *icon) image(cfg ui.Config) image.Image {
|
||||
sz := cfg.Px(ic.size)
|
||||
if sz == ic.imgSize {
|
||||
return ic.img
|
||||
}
|
||||
m, _ := iconvg.DecodeMetadata(ic.src)
|
||||
dx, dy := m.ViewBox.AspectRatio()
|
||||
img := image.NewRGBA(image.Rectangle{Max: image.Point{X: sz, Y: int(float32(sz) * dy / dx)}})
|
||||
var ico iconvg.Rasterizer
|
||||
ico.SetDstImage(img, img.Bounds(), draw.Src)
|
||||
// Use white for icons.
|
||||
m.Palette[0] = color.RGBA{A: 0xff, R: 0xff, G: 0xff, B: 0xff}
|
||||
iconvg.Decode(&ico, ic.src, &iconvg.DecodeOptions{
|
||||
Palette: &m.Palette,
|
||||
})
|
||||
ic.img = img
|
||||
ic.imgSize = sz
|
||||
return img
|
||||
}
|
||||
|
||||
// https://pomax.github.io/bezierinfo/#circles_cubic.
|
||||
func rrect(ops *ui.Ops, width, height, se, sw, nw, ne float32) {
|
||||
w, h := float32(width), float32(height)
|
||||
const c = 0.55228475 // 4*(sqrt(2)-1)/3
|
||||
var b gdraw.PathBuilder
|
||||
b.Init(ops)
|
||||
b.Move(f32.Point{X: w, Y: h - se})
|
||||
b.Cube(f32.Point{X: 0, Y: se * c}, f32.Point{X: -se + se*c, Y: se}, f32.Point{X: -se, Y: se}) // SE
|
||||
b.Line(f32.Point{X: sw - w + se, Y: 0})
|
||||
b.Cube(f32.Point{X: -sw * c, Y: 0}, f32.Point{X: -sw, Y: -sw + sw*c}, f32.Point{X: -sw, Y: -sw}) // SW
|
||||
b.Line(f32.Point{X: 0, Y: nw - h + sw})
|
||||
b.Cube(f32.Point{X: 0, Y: -nw * c}, f32.Point{X: nw - nw*c, Y: -nw}, f32.Point{X: nw, Y: -nw}) // NW
|
||||
b.Line(f32.Point{X: w - ne - nw, Y: 0})
|
||||
b.Cube(f32.Point{X: ne * c, Y: 0}, f32.Point{X: ne, Y: ne - ne*c}, f32.Point{X: ne, Y: ne}) // NE
|
||||
b.End()
|
||||
}
|
||||
|
||||
const longTextSample = `1. I learned from my grandfather, Verus, to use good manners, and to
|
||||
put restraint on anger. 2. In the famous memory of my father I had a
|
||||
pattern of modesty and manliness. 3. Of my mother I learned to be
|
||||
pious and generous; to keep myself not only from evil deeds, but even
|
||||
from evil thoughts; and to live with a simplicity which is far from
|
||||
customary among the rich. 4. I owe it to my great-grandfather that I
|
||||
did not attend public lectures and discussions, but had good and able
|
||||
teachers at home; and I owe him also the knowledge that for things of
|
||||
this nature a man should count no expense too great.
|
||||
|
||||
5. My tutor taught me not to favour either green or blue at the
|
||||
chariot races, nor, in the contests of gladiators, to be a supporter
|
||||
either of light or heavy armed. He taught me also to endure labour;
|
||||
not to need many things; to serve myself without troubling others; not
|
||||
to intermeddle in the affairs of others, and not easily to listen to
|
||||
slanders against them.
|
||||
|
||||
6. Of Diognetus I had the lesson not to busy myself about vain things;
|
||||
not to credit the great professions of such as pretend to work
|
||||
wonders, or of sorcerers about their charms, and their expelling of
|
||||
Demons and the like; not to keep quails (for fighting or divination),
|
||||
nor to run after such things; to suffer freedom of speech in others,
|
||||
and to apply myself heartily to philosophy. Him also I must thank for
|
||||
my hearing first Bacchius, then Tandasis and Marcianus; that I wrote
|
||||
dialogues in my youth, and took a liking to the philosopher's pallet
|
||||
and skins, and to the other things which, by the Grecian discipline,
|
||||
belong to that profession.
|
||||
|
||||
7. To Rusticus I owe my first apprehensions that my nature needed
|
||||
reform and cure; and that I did not fall into the ambition of the
|
||||
common Sophists, either by composing speculative writings or by
|
||||
declaiming harangues of exhortation in public; further, that I never
|
||||
strove to be admired by ostentation of great patience in an ascetic
|
||||
life, or by display of activity and application; that I gave over the
|
||||
study of rhetoric, poetry, and the graces of language; and that I did
|
||||
not pace my house in my senatorial robes, or practise any similar
|
||||
affectation. I observed also the simplicity of style in his letters,
|
||||
particularly in that which he wrote to my mother from Sinuessa. I
|
||||
learned from him to be easily appeased, and to be readily reconciled
|
||||
with those who had displeased me or given cause of offence, so soon as
|
||||
they inclined to make their peace; to read with care; not to rest
|
||||
satisfied with a slight and superficial knowledge; nor quickly to
|
||||
assent to great talkers. I have him to thank that I met with the
|
||||
discourses of Epictetus, which he furnished me from his own library.
|
||||
|
||||
8. From Apollonius I learned true liberty, and tenacity of purpose; to
|
||||
regard nothing else, even in the smallest degree, but reason always;
|
||||
and always to remain unaltered in the agonies of pain, in the losses
|
||||
of children, or in long diseases. He afforded me a living example of
|
||||
how the same man can, upon occasion, be most yielding and most
|
||||
inflexible. He was patient in exposition; and, as might well be seen,
|
||||
esteemed his fine skill and ability in teaching others the principles
|
||||
of philosophy as the least of his endowments. It was from him that I
|
||||
learned how to receive from friends what are thought favours without
|
||||
seeming humbled by the giver or insensible to the gift.`
|
||||
Reference in New Issue
Block a user