Add display components 041-065; move Icon into display; QR via rsc.io/qr

pixel/dither.go

@@ -4,6 +4,9 @@ import "fmt"
 
 var bayer = [4][4]int{{0, 8, 2, 10}, {12, 4, 14, 6}, {3, 11, 1, 9}, {15, 7, 13, 5}}
 
+// Bayer is the 4×4 ordered threshold, 0–15, at x, y.
+func Bayer(x, y int) int { return bayer[y&3][x&3] }
+
 // Dither fills b below the level threshold, a elsewhere.
 func (g Canvas) Dither(x, y, w, h int, a, b Slot, level int) {
 	checkLevel(level)

pixel/element.go

@@ -77,27 +77,6 @@ func WrapWidth(c *ui.Context, e *ui.Element) (int, func(r ui.Rect)) {
 	}
 }
 
-type IconOptions struct {
-	Slot  Slot
-	Scale int
-	// Label names the icon; empty hides it from assistive technology.
-	Label string
-}
-
-func Icon(c *ui.Context, sp *Sprite, o IconOptions) *ui.Element {
-	k := K(c)
-	scale := scaleOr1(o.Scale)
-	e := ui.Box(c).Size(k.D(sp.W*scale), k.D(sp.H*scale))
-	if o.Label != "" {
-		e.Label(o.Label).Role(ui.RoleImage)
-	} else {
-		e.Role(ui.RoleNone)
-	}
-	return e.Draw(func(p *ui.Painter, r ui.Rect) {
-		k.Canvas(p, r).Sprite(0, 0, sp, 0, o.Slot, scale)
-	})
-}
-
 func scaleOr1(s int) int {
 	if s == 0 {
 		return 1

pixel/element_test.go

@@ -150,22 +150,6 @@ func TestTextElement(t *testing.T) {
 	}
 }
 
-func TestIconElement(t *testing.T) {
-	sp := pixel.MustSprite("aa\naa\naa")
-	tt := ui.NewTester(func(c *ui.Context) {
-		pixel.Use(c, pixel.Settings{Palette: pixel.SpringDay, Dot: 2})
-		pixel.Icon(c, sp, pixel.IconOptions{Scale: 3, Label: "block"})
-		pixel.Icon(c, sp, pixel.IconOptions{})
-	}, 100, 100)
-	r, ok := tt.Find("block")
-	if !ok || r.W != 2*3*2 || r.H != 3*3*2 {
-		t.Fatalf("icon box %v found %v, want 12×18", r, ok)
-	}
-	if len(tt.Texts()) != 1 {
-		t.Fatalf("unlabeled icon is visible to assistive technology: %q", tt.Texts())
-	}
-}
-
 func shellView(disabled *bool, clicks *int, st *pixel.State) func(c *ui.Context) {
 	at := time.Unix(1_700_000_001, 250_000_000)
 	return func(c *ui.Context) {

pixel/messages.go

@@ -9,6 +9,9 @@ var messages = map[Locale]map[string]string{
 		"search": "SEARCH", "empty": "NO ITEMS", "minimize": "MINIMIZE", "resize": "RESIZE",
 		"scroll_up": "SCROLL UP", "scroll_down": "SCROLL DOWN",
 		"up": "UP", "down": "DOWN", "left": "LEFT", "right": "RIGHT", "disabled": "DISABLED",
+		"remove": "REMOVE", "online": "ONLINE", "away": "AWAY", "busy": "BUSY", "offline": "OFFLINE",
+		"gold": "GOLD", "silver": "SILVER", "bronze": "BRONZE",
+		"common": "COMMON", "uncommon": "UNCOMMON", "rare": "RARE", "epic": "EPIC", "legendary": "LEGENDARY",
 	},
 	Zh: {
 		"ok": "确定", "cancel": "取消", "yes": "是", "no": "否", "close": "关闭",
@@ -16,6 +19,9 @@ var messages = map[Locale]map[string]string{
 		"search": "搜索", "empty": "空空如也", "minimize": "最小化", "resize": "调整大小",
 		"scroll_up": "向上滚动", "scroll_down": "向下滚动",
 		"up": "上", "down": "下", "left": "左", "right": "右", "disabled": "已禁用",
+		"remove": "移除", "online": "在线", "away": "离开", "busy": "忙碌", "offline": "离线",
+		"gold": "金", "silver": "银", "bronze": "铜",
+		"common": "普通", "uncommon": "优秀", "rare": "稀有", "epic": "史诗", "legendary": "传说",
 	},
 }
 

pixel/micro.go

@@ -90,6 +90,16 @@ func microGlyph(r rune) [MicroHeight]uint8 {
 	return g
 }
 
+// MicroOK reports whether the micro font has all of s.
+func MicroOK(s string) bool {
+	for _, r := range s {
+		if _, ok := micro[unicode.ToUpper(r)]; !ok {
+			return false
+		}
+	}
+	return true
+}
+
 // MicroWidth returns the width of s in dots.
 func MicroWidth(s string) int {
 	n := 0

pixel/palette.go

@@ -31,6 +31,11 @@ const (
 
 const Slots = 16
 
+var slotNames = [Slots]string{"Ink", "Back", "Face", "Lit", "Shade", "Edge", "Faint", "Well",
+	"Accent", "AccentLit", "AccentInk", "Good", "Warn", "Bad", "Info", "Magic"}
+
+func (s Slot) String() string { return slotNames[s] }
+
 type Season uint8
 
 const (