forked from joejulian/gio
Elias Naur
@@ -0,0 +1,726 @@
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// SPDX-License-Identifier: Unlicense OR MIT
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package main
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import (
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"context"
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"flag"
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"fmt"
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"image"
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"image/color"
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"log"
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"net/http"
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"os"
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"golang.org/x/image/draw"
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"golang.org/x/oauth2"
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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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"gioui.org/ui/app"
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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/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/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 App struct {
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w *app.Window
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cfg *ui.Config
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faces measure.Faces
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pqueue *pointer.Queue
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kqueue *key.Queue
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fab *ActionButton
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usersList *layout.List
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edit, edit2 *text.Editor
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users []*user
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userClicks []gesture.Click
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selectedUser *userPage
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updateUsers chan []*user
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}
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type userPage struct {
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cfg *ui.Config
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faces measure.Faces
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redraw redrawer
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user *user
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commitsList *layout.List
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commits []*github.Commit
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commitsResult chan []*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 float32
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}
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type redrawer func()
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type ActionButton struct {
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face text.Face
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cfg *ui.Config
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Open bool
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icons []*icon
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sendIco *icon
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btnClicker *gesture.Click
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btnsClicker *gesture.Click
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}
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var (
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profile = flag.Bool("profile", false, "serve profiling data at http://localhost:6060")
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stats = flag.Bool("stats", false, "show rendering statistics")
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token = flag.String("token", "", "Github authentication token")
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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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func main() {
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if *token == "" {
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fmt.Println("The quota for anonymous GitHub API access is very low. Specify a token with -token to avoid quota errors.")
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fmt.Println("See https://help.github.com/en/articles/creating-a-personal-access-token-for-the-command-line.")
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}
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err := app.CreateWindow(app.WindowOptions{
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Width: ui.Dp(400),
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Height: ui.Dp(800),
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Title: "Gopher Chat",
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})
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if err != nil {
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log.Fatal(err)
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}
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app.Main()
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}
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func initProfiling() {
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if !*profile {
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return
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}
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go func() {
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log.Println(http.ListenAndServe("localhost:6060", nil))
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}()
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}
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func init() {
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flag.Parse()
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initProfiling()
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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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go func() {
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for w := range app.Windows() {
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w := w
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go func() {
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if err := newApp(w).run(); err != nil {
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log.Fatal(err)
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}
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}()
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}
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}()
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}
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func (a *App) run() error {
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a.w.Profiling = *stats
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for a.w.IsAlive() {
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select {
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case users := <-a.updateUsers:
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a.users = users
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a.userClicks = make([]gesture.Click, len(users))
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a.w.Redraw()
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case e := <-a.w.Events():
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switch e := e.(type) {
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case pointer.Event:
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a.pqueue.Push(e)
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case key.Event:
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a.kqueue.Push(e)
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if e, ok := e.(key.Chord); ok {
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switch e.Name {
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case key.NameEscape:
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os.Exit(0)
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case 'P':
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if e.Modifiers&key.ModCommand != 0 {
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a.w.Profiling = !a.w.Profiling
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}
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}
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}
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case app.ChangeStage:
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case app.Draw:
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a.cfg = e.Config
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a.faces.Cfg = a.cfg
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cs := layout.ExactConstraints(a.w.Size())
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root, _ := a.Layout(cs)
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if a.w.Profiling {
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op, _ := layout.Align(
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layout.NE,
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layout.Margin(a.cfg,
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layout.Margins{Top: ui.Dp(16)},
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text.Label{Src: textColor, Face: a.face(fonts.mono, 8), Text: a.w.Timings()},
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),
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).Layout(cs)
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root = ui.Ops{root, op}
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}
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a.w.Draw(root)
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a.w.SetTextInput(a.kqueue.Frame(root))
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a.pqueue.Frame(root)
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a.faces.Frame()
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}
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a.w.Ack()
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}
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}
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return a.w.Err()
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}
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func newApp(w *app.Window) *App {
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a := &App{
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w: w,
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updateUsers: make(chan []*user),
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pqueue: new(pointer.Queue),
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kqueue: new(key.Queue),
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}
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a.usersList = &layout.List{Axis: layout.Vertical}
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a.fab = &ActionButton{
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face: a.face(fonts.regular, 9),
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sendIco: &icon{src: icons.ContentSend, size: ui.Dp(24)},
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icons: []*icon{},
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btnClicker: new(gesture.Click),
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btnsClicker: new(gesture.Click),
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}
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a.edit2 = &text.Editor{
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Src: textColor,
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Face: a.face(fonts.italic, 14),
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//Alignment: text.End,
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SingleLine: true,
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}
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a.edit2.SetText("Single line editor. Edit me!")
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a.edit = &text.Editor{
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Src: textColor,
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Face: a.face(fonts.regular, 14),
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//Alignment: text.End,
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//SingleLine: true,
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}
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a.edit.SetText(longTextSample)
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go a.fetchContributors()
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return a
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}
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func githubClient(ctx context.Context) *github.Client {
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var tc *http.Client
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if *token != "" {
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ts := oauth2.StaticTokenSource(
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&oauth2.Token{AccessToken: *token},
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)
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tc = oauth2.NewClient(ctx, ts)
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}
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return github.NewClient(tc)
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}
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func (a *App) fetchContributors() {
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ctx := context.Background()
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client := githubClient(ctx)
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cons, _, err := client.Repositories.ListContributors(ctx, "golang", "go", nil)
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if err != nil {
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fmt.Fprintf(os.Stderr, "github: failed to fetch contributors: %v\n", err)
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return
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}
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var users []*user
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userErrs := make(chan error, len(cons))
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avatarErrs := make(chan error, len(cons))
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for _, con := range cons {
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con := con
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avatar := con.GetAvatarURL()
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if avatar == "" {
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continue
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}
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u := &user{
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login: con.GetLogin(),
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}
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users = append(users, u)
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go func() {
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guser, _, err := client.Users.Get(ctx, u.login)
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if err != nil {
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avatarErrs <- err
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return
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}
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u.name = guser.GetName()
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u.company = guser.GetCompany()
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avatarErrs <- nil
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}()
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go func() {
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a, err := fetchImage(avatar)
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u.avatar = a
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userErrs <- err
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}()
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}
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for i := 0; i < len(cons); i++ {
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if err := <-userErrs; err != nil {
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fmt.Fprintf(os.Stderr, "github: failed to fetch user: %v\n", err)
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}
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if err := <-avatarErrs; err != nil {
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fmt.Fprintf(os.Stderr, "github: failed to fetch avatar: %v\n", err)
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}
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}
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// Drop users with no avatar or name.
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for i := len(users) - 1; i >= 0; i-- {
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if u := users[i]; u.name == "" || u.avatar == nil {
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users = append(users[:i], users[i+1:]...)
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}
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}
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a.updateUsers <- users
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}
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func fetchImage(url string) (image.Image, error) {
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resp, err := http.Get(url)
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if err != nil {
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return nil, fmt.Errorf("fetchImage: http.Get(%q): %v", url, err)
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}
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defer resp.Body.Close()
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img, _, err := image.Decode(resp.Body)
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if err != nil {
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return nil, fmt.Errorf("fetchImage: image decode failed: %v", err)
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}
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return img, nil
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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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return fnt
|
||||
}
|
||||
|
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var (
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backgroundColor = rgb(0xfbfbfb)
|
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brandColor = rgb(0x62798c)
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divColor = rgb(0xecedef)
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textColor = rgb(0x333333)
|
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secTextColor = rgb(0xe0e4e8)
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tertTextColor = rgb(0xbbbbbb)
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whiteColor = rgb(0xffffff)
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accentColor = rgb(0x00c28c)
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)
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func rgb(c uint32) *image.Uniform {
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return argb((0xff << 24) | c)
|
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}
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|
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func argb(c uint32) *image.Uniform {
|
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col := color.NRGBA{A: uint8(c >> 24), R: uint8(c >> 16), G: uint8(c >> 8), B: uint8(c)}
|
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return &image.Uniform{col}
|
||||
}
|
||||
|
||||
func (a *App) face(f *sfnt.Font, size float32) text.Face {
|
||||
return a.faces.For(f, ui.Sp(size))
|
||||
}
|
||||
|
||||
func (a *App) Layout(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
if a.selectedUser == nil {
|
||||
return a.layoutUsers(cs)
|
||||
} else {
|
||||
a.selectedUser.Update(a.pqueue)
|
||||
return a.selectedUser.Layout(cs)
|
||||
}
|
||||
}
|
||||
|
||||
func newUserPage(cfg *ui.Config, user *user, redraw redrawer, faces measure.Faces) *userPage {
|
||||
up := &userPage{
|
||||
cfg: cfg,
|
||||
faces: faces,
|
||||
redraw: redraw,
|
||||
user: user,
|
||||
commitsList: &layout.List{Axis: layout.Vertical},
|
||||
commitsResult: make(chan []*github.Commit, 1),
|
||||
}
|
||||
up.fetchCommits()
|
||||
return up
|
||||
}
|
||||
|
||||
func (up *userPage) Update(pqueue pointer.Events) {
|
||||
up.commitsList.Scroll(up.cfg, pqueue)
|
||||
}
|
||||
|
||||
func (up *userPage) Layout(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
l := up.commitsList
|
||||
var ops ui.Ops
|
||||
if l.Dragging() {
|
||||
ops = append(ops, key.OpHideInput{})
|
||||
}
|
||||
select {
|
||||
case commits := <-up.commitsResult:
|
||||
up.commits = commits
|
||||
default:
|
||||
}
|
||||
for i, ok := l.Init(cs, len(up.commits)); ok; i, ok = l.Index() {
|
||||
l.Elem(up.commit(i))
|
||||
}
|
||||
op, dims := l.Layout()
|
||||
return append(ops, op), dims
|
||||
}
|
||||
|
||||
func (up *userPage) commit(index int) layout.Widget {
|
||||
sz := ui.Dp(48)
|
||||
u := up.user
|
||||
c := up.cfg
|
||||
avatar := clipCircle(layout.Sized(c, sz, sz, widget.Image{Src: u.avatar, Rect: u.avatar.Bounds()}))
|
||||
msg := up.commits[index].GetMessage()
|
||||
label := text.Label{Src: textColor, Face: up.faces.For(fonts.regular, ui.Sp(12)), Text: msg}
|
||||
return layout.Margin(c,
|
||||
layout.Margins{Top: ui.Dp(16), Right: ui.Dp(8), Left: ui.Dp(8)},
|
||||
layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
return (&layout.Flex{Axis: layout.Horizontal, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.Start}).
|
||||
Init(cs).
|
||||
Rigid(avatar).
|
||||
Flexible(-1, 1, layout.Fit, layout.Margin(c, layout.Margins{Left: ui.Dp(8)}, label)).
|
||||
Layout()
|
||||
}),
|
||||
)
|
||||
}
|
||||
|
||||
func (up *userPage) fetchCommits() {
|
||||
go func() {
|
||||
ctx := context.Background()
|
||||
gh := githubClient(ctx)
|
||||
repoCommits, _, err := gh.Repositories.ListCommits(ctx, "golang", "go", &github.CommitsListOptions{
|
||||
Author: up.user.login,
|
||||
})
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
var commits []*github.Commit
|
||||
for _, commit := range repoCommits {
|
||||
if c := commit.GetCommit(); c != nil {
|
||||
commits = append(commits, c)
|
||||
}
|
||||
}
|
||||
up.commitsResult <- commits
|
||||
up.redraw()
|
||||
}()
|
||||
}
|
||||
|
||||
func (a *App) layoutUsers(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
c := a.cfg
|
||||
a.fab.Update(c, a.pqueue)
|
||||
st := (&layout.Stack{Alignment: layout.Center}).Init(cs).
|
||||
Rigid(layout.Align(
|
||||
layout.SE,
|
||||
layout.Margin(c,
|
||||
layout.EqualMargins(ui.Dp(16)),
|
||||
a.fab,
|
||||
),
|
||||
))
|
||||
a.edit.Update(c, a.pqueue, a.kqueue)
|
||||
a.edit2.Update(c, a.pqueue, a.kqueue)
|
||||
return st.Expand(0, layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
return (&layout.Flex{Axis: layout.Vertical, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.Stretch}).Init(cs).
|
||||
Rigid(layout.Margin(c,
|
||||
layout.EqualMargins(ui.Dp(16)),
|
||||
layout.Sized(c, ui.Dp(0), ui.Dp(200), a.edit),
|
||||
)).
|
||||
Rigid(layout.Margin(c,
|
||||
layout.Margins{Bottom: ui.Dp(16), Left: ui.Dp(16), Right: ui.Dp(16)},
|
||||
a.edit2,
|
||||
)).
|
||||
Rigid(layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
return (&layout.Stack{Alignment: layout.Center}).Init(cs).
|
||||
Rigid(layout.Margin(c,
|
||||
layout.Margins{Top: ui.Dp(16), Right: ui.Dp(8), Bottom: ui.Dp(8), Left: ui.Dp(8)},
|
||||
text.Label{Src: rgb(0x888888), Face: a.face(fonts.regular, 9), Text: "GOPHERS"},
|
||||
)).
|
||||
Expand(0, fill(rgb(0xf2f2f2))).
|
||||
Layout()
|
||||
})).
|
||||
Flexible(-1, 1, layout.Fit, a.layoutContributors()).
|
||||
Layout()
|
||||
})).
|
||||
Layout()
|
||||
}
|
||||
|
||||
func (a *ActionButton) Update(c *ui.Config, q pointer.Events) {
|
||||
a.cfg = c
|
||||
a.btnsClicker.Update(q)
|
||||
a.btnClicker.Update(q)
|
||||
}
|
||||
|
||||
func (a *ActionButton) Layout(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
c := a.cfg
|
||||
fl := (&layout.Flex{Axis: layout.Vertical, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.End, MainAxisSize: layout.Min}).Init(cs)
|
||||
fabCol := brandColor
|
||||
fl.Rigid(layout.Margin(c,
|
||||
layout.Margins{Top: ui.Dp(4)},
|
||||
layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
op, dims := fab(c, a.sendIco.image(c), fabCol, ui.Dp(56)).Layout(cs)
|
||||
ops := ui.Ops{op, a.btnClicker.Op(gesture.Ellipse(dims.Size))}
|
||||
return ops, dims
|
||||
}),
|
||||
))
|
||||
return fl.Layout()
|
||||
}
|
||||
|
||||
func (a *App) layoutContributors() layout.Widget {
|
||||
return layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
c := a.cfg
|
||||
l := a.usersList
|
||||
l.Scroll(c, a.pqueue)
|
||||
var ops ui.Ops
|
||||
if l.Dragging() {
|
||||
ops = append(ops, key.OpHideInput{})
|
||||
}
|
||||
for i, ok := l.Init(cs, len(a.users)); ok; i, ok = l.Index() {
|
||||
l.Elem(a.user(c, i))
|
||||
}
|
||||
op, dims := l.Layout()
|
||||
return append(ops, op), dims
|
||||
})
|
||||
}
|
||||
|
||||
func (a *App) user(c *ui.Config, index int) layout.Widget {
|
||||
u := a.users[index]
|
||||
click := &a.userClicks[index]
|
||||
sz := ui.Dp(48)
|
||||
for _, r := range click.Update(a.pqueue) {
|
||||
if r.Type == gesture.TypeClick {
|
||||
a.selectedUser = newUserPage(a.cfg, u, a.w.Redraw, a.faces)
|
||||
}
|
||||
}
|
||||
avatar := clipCircle(layout.Sized(a.cfg, sz, sz, widget.Image{Src: u.avatar, Rect: u.avatar.Bounds()}))
|
||||
return layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
elem := (&layout.Flex{Axis: layout.Vertical, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.Start}).Init(cs)
|
||||
elem.Rigid(layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
op, dims := layout.Margin(c,
|
||||
layout.EqualMargins(ui.Dp(8)),
|
||||
layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
return centerRowOpts().Init(cs).
|
||||
Rigid(layout.Margin(c, layout.Margins{Right: ui.Dp(8)}, avatar)).
|
||||
Rigid(column(
|
||||
baseline(
|
||||
text.Label{Src: textColor, Face: a.face(fonts.regular, 11), Text: u.name},
|
||||
layout.Align(layout.E, layout.Margin(c,
|
||||
layout.Margins{Left: ui.Dp(2)},
|
||||
text.Label{Src: textColor, Face: a.face(fonts.regular, 8), Text: "3 hours ago"},
|
||||
)),
|
||||
),
|
||||
layout.Margin(c,
|
||||
layout.Margins{Top: ui.Dp(4)},
|
||||
text.Label{Src: tertTextColor, Face: a.face(fonts.regular, 10), Text: u.company},
|
||||
),
|
||||
)).
|
||||
Layout()
|
||||
}),
|
||||
).Layout(cs)
|
||||
ops := ui.Ops{op, click.Op(gesture.Rect(dims.Size))}
|
||||
return ops, dims
|
||||
}))
|
||||
return elem.Layout()
|
||||
})
|
||||
}
|
||||
|
||||
func fill(img image.Image) layout.Widget {
|
||||
return widget.Image{Src: img, Rect: image.Rectangle{Max: image.Point{X: 1, Y: 1}}}
|
||||
}
|
||||
|
||||
func column(widgets ...layout.Widget) layout.Widget {
|
||||
return flex(&layout.Flex{Axis: layout.Vertical, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.Start}, widgets...)
|
||||
}
|
||||
|
||||
func centerColumn(widgets ...layout.Widget) layout.Widget {
|
||||
return flex(&layout.Flex{Axis: layout.Vertical, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.Center, MainAxisSize: layout.Min}, widgets...)
|
||||
}
|
||||
|
||||
func centerRowOpts(widgets ...layout.Widget) *layout.Flex {
|
||||
return &layout.Flex{Axis: layout.Horizontal, MainAxisAlignment: layout.Start, CrossAxisAlignment: layout.Center, MainAxisSize: layout.Min}
|
||||
}
|
||||
|
||||
func centerRow(widgets ...layout.Widget) layout.Widget {
|
||||
return flex(centerRowOpts(), widgets...)
|
||||
}
|
||||
|
||||
func baseline(widgets ...layout.Widget) layout.Widget {
|
||||
return flex(&layout.Flex{Axis: layout.Horizontal, CrossAxisAlignment: layout.Baseline, MainAxisSize: layout.Min}, widgets...)
|
||||
}
|
||||
|
||||
func flex(f *layout.Flex, widgets ...layout.Widget) layout.Widget {
|
||||
return layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
f.Init(cs)
|
||||
for _, w := range widgets {
|
||||
f.Rigid(w)
|
||||
}
|
||||
return f.Layout()
|
||||
})
|
||||
}
|
||||
|
||||
func clipCircle(w layout.Widget) layout.Widget {
|
||||
return layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
op, dims := w.Layout(cs)
|
||||
max := dims.Size.X
|
||||
if dy := dims.Size.Y; dy > max {
|
||||
max = dy
|
||||
}
|
||||
szf := float32(max)
|
||||
rr := szf * .5
|
||||
op = gdraw.OpClip{
|
||||
Path: rrect(szf, szf, rr, rr, rr, rr),
|
||||
Op: op,
|
||||
}
|
||||
return op, dims
|
||||
})
|
||||
}
|
||||
|
||||
func fab(c *ui.Config, ico, col image.Image, size ui.Value) layout.Widget {
|
||||
return layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
|
||||
szf := c.Pixels(size)
|
||||
sz := int(szf + .5)
|
||||
rr := szf * .5
|
||||
dp := image.Point{X: (sz - ico.Bounds().Dx()) / 2, Y: (sz - ico.Bounds().Dy()) / 2}
|
||||
dims := image.Point{X: sz, Y: sz}
|
||||
op := gdraw.OpClip{
|
||||
Path: rrect(szf, szf, rr, rr, rr, rr),
|
||||
Op: ui.Ops{
|
||||
gdraw.OpImage{Rect: f32.Rectangle{Max: f32.Point{X: float32(sz), Y: float32(sz)}}, Src: col, SrcRect: col.Bounds()},
|
||||
gdraw.OpImage{
|
||||
Rect: toRectF(ico.Bounds().Add(dp)),
|
||||
Src: ico,
|
||||
SrcRect: ico.Bounds(),
|
||||
},
|
||||
},
|
||||
}
|
||||
return op, 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.Pixels(ic.size)
|
||||
if sz == ic.imgSize {
|
||||
return ic.img
|
||||
}
|
||||
m, _ := iconvg.DecodeMetadata(ic.src)
|
||||
dx, dy := m.ViewBox.AspectRatio()
|
||||
img := image.NewNRGBA(image.Rectangle{Max: image.Point{X: int(sz), Y: int(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(width, height, se, sw, nw, ne float32) *gdraw.Path {
|
||||
w, h := float32(width), float32(height)
|
||||
const c = 0.55228475 // 4*(sqrt(2)-1)/3
|
||||
var b gdraw.PathBuilder
|
||||
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
|
||||
return b.Path()
|
||||
}
|
||||
|
||||
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