Added support for Home and End buttons in TextBox.

Fixed scaling of icon in Button.

ui/allg5ui/renderer.go

@@ -267,8 +267,12 @@ func key(key allg5.Key) ui.Key {
 		return ui.KeyDelete
 	case allg5.KeyDown:
 		return ui.KeyDown
+	case allg5.KeyEnd:
+		return ui.KeyEnd
 	case allg5.KeyEscape:
 		return ui.KeyEscape
+	case allg5.KeyHome:
+		return ui.KeyHome
 	case allg5.KeyLeft:
 		return ui.KeyLeft
 	case allg5.KeyRight:

ui/button.go

@@ -43,10 +43,7 @@ func (b *Button) desiredSize(ctx Context) geom.PointF32 {
 		w += pad + font.WidthOf(b.Text)
 	}
 	if b.Icon != nil && b.Icon.Height() > 0 {
-		iconW := b.Icon.Width() * h / b.Icon.Height()
-		if b.IconScale > 0 {
-			iconW *= b.IconScale
-		}
+		iconW := b.scale(b.Icon.Width() * h / b.Icon.Height())
 		w += pad + iconW
 	}
 	if w == 0 {
@@ -88,6 +85,13 @@ func (b *Button) fillColor(p *Palette) color.Color {
 	return nil
 }
 
+func (b *Button) scale(f float32) float32 {
+	if b.IconScale == 0 {
+		return f
+	}
+	return b.IconScale * f
+}
+
 func (b *Button) textColor(p *Palette) color.Color {
 	if b.Font.Color != nil {
 		return b.Font.Color
@@ -123,7 +127,7 @@ func (b *Button) Render(ctx Context) {
 	bounds = bounds.Inset(pad)
 	pos := bounds.Min
 	if b.Icon != nil && b.Icon.Height() > 0 {
-		icon, _ := ctx.Images().ScaledHeight(b.Icon, b.IconScale*bounds.Dy())
+		icon, _ := ctx.Images().ScaledHeight(b.Icon, b.scale(bounds.Dy()))
 		if icon != nil {
 			ctx.Renderer().DrawImageOptions(icon, geom.PtF32(pos.X, pos.Y+.5*(bounds.Dy()-icon.Height())), DrawOptions{Tint: textColor})
 			pos.X += icon.Width() + pad

ui/event.go

@@ -30,7 +30,9 @@ const (
 	KeyBackspace
 	KeyDelete
 	KeyDown
+	KeyEnd
 	KeyEscape
+	KeyHome
 	KeyLeft
 	KeyRight
 	KeyUp
@@ -39,7 +41,7 @@ const (
 type KeyModifier int
 
 const (
-	KeyModifiersNone KeyModifier = 0
+	KeyModifierNone  KeyModifier = 0
 	KeyModifierShift             = 1 << iota
 	KeyModifierControl
 	KeyModifierAlt

ui/examples/01_basic/basic.go

@@ -38,6 +38,7 @@ func run() error {
 		})
 	}
 
+	var style = ui.DefaultStyle()
 	var view = ui.BuildStackPanel(ui.OrientationVertical, func(p *ui.StackPanel) {
 		p.Background = color.White
 		p.Children = []ui.Control{
@@ -50,11 +51,6 @@ func run() error {
 					stretch(ui.BuildIconButton(plus, "Text", func(b *ui.Button) { b.Type = ui.ButtonTypeText }), 8),
 				}
 			}),
-			ui.Margin(ui.BuildButton("Quit", func(b *ui.Button) {
-				b.OnClick(func(ctx ui.Context, _ ui.Control, _ geom.PointF32, _ ui.MouseButton) {
-					ctx.Quit()
-				})
-			}), 8),
 			ui.BuildStackPanel(ui.OrientationHorizontal, func(p *ui.StackPanel) {
 				p.Children = []ui.Control{
 					&ui.Checkbox{},
@@ -62,14 +58,22 @@ func run() error {
 				}
 			}),
 			ui.Stretch(&ui.Label{Text: "Content"}),
-			ui.StretchWidth(ui.BuildTextBox(func(b *ui.TextBox) {
+			ui.Margin(ui.StretchWidth(ui.BuildTextBox(func(b *ui.TextBox) {
 				b.Text = "Type here..."
-			})),
-			&ui.Label{Text: "Status"},
+			})), 8),
+			ui.Margin(ui.BuildButton("Quit", func(b *ui.Button) {
+				b.OnClick(func(ctx ui.Context, _ ui.Control, _ geom.PointF32, _ ui.MouseButton) {
+					ctx.Quit()
+				})
+			}), 8),
+			ui.BuildLabel("Status...", func(l *ui.Label) {
+				l.Background = style.Palette.PrimaryDark
+				l.Font.Color = style.Palette.TextOnPrimary
+			}),
 		}
 	})
 
-	return ui.RunWait(render, ui.DefaultStyle(), view, true)
+	return ui.RunWait(render, style, view, true)
 }
 
 func main() {

ui/textbox.go

@@ -3,6 +3,7 @@ package ui
 import (
 	"fmt"
 	"image/color"
+	"strings"
 	"time"
 	"unicode"
 
@@ -149,7 +150,16 @@ func (b *TextBox) Handle(ctx Context, e Event) {
 			b.Selection.End = b.Selection.Caret
 		}
 	case *KeyPressEvent:
-		if b.Focus {
+		if !b.Focus {
+			break
+		}
+		selectAfterMove := func() {
+			if e.Modifiers&KeyModifierShift == KeyModifierShift {
+				b.Selection.End = b.Selection.Caret
+			} else {
+				b.Selection.SetSelectionToCaret()
+			}
+		}
 			switch {
 			case e.Key == KeyDelete:
 				if b.Selection.HasSelection() {
@@ -168,28 +178,27 @@ func (b *TextBox) Handle(ctx Context, e Event) {
 					if caret > 0 {
 						b.Text = b.Text[:caret-1] + b.Text[caret:]
 						b.Selection.Caret = caret - 1
+					b.Selection.SetSelectionToCaret()
 					}
 				}
+		case e.Key == KeyEnd:
+			b.Selection.Caret = len(b.Text)
+			selectAfterMove()
+		case e.Key == KeyHome:
+			b.Selection.Caret = 0
+			selectAfterMove()
 			case e.Key == KeyLeft:
 				if b.Selection.Caret > 0 {
 					b.Selection.MoveCaret(-1)
-					if e.Modifiers&KeyModifierShift == KeyModifierShift {
-						b.Selection.End = b.Selection.Caret
-					} else {
-						b.Selection.SetSelectionToCaret()
-					}
+				selectAfterMove()
 				}
 			case e.Key == KeyRight:
 				if b.Selection.Caret < len(b.Text) {
 					b.Selection.MoveCaret(1)
-					if e.Modifiers&KeyModifierShift == KeyModifierShift {
-						b.Selection.End = b.Selection.Caret
-					} else {
-						b.Selection.SetSelectionToCaret()
-					}
+				selectAfterMove()
 				}
 			case !unicode.IsControl(e.Character):
-				if e.Modifiers == KeyModifiersNone {
+			if e.Modifiers == KeyModifierNone {
 					b.cut()
 					caret := b.Selection.Caret
 					b.Text = fmt.Sprintf("%s%c%s", b.Text[:caret], e.Character, b.Text[caret:])
@@ -204,6 +213,12 @@ func (b *TextBox) Handle(ctx Context, e Event) {
 						DefaultClipboard.WriteText(b.selection())
 					case 'v':
 						text, err := DefaultClipboard.ReadText()
+					text = strings.Map(func(r rune) rune {
+						if unicode.IsControl(r) {
+							return -1
+						}
+						return r
+					}, text)
 						if err == nil {
 							b.cut()
 							caret := b.Selection.Caret
@@ -216,6 +231,8 @@ func (b *TextBox) Handle(ctx Context, e Event) {
 				}
 			}
 		}
+	if b.over {
+		ctx.Renderer().SetMouseCursor(MouseCursorText)
 	}
 	ctx.Animate()
 }