Added RenderOutline to ControlBase.

Added HoverColor to Button.

ui/button.go

@@ -9,11 +9,11 @@ import (
 type Button struct {
 	ControlBase
 
-	Type ButtonType
-	Text string
-	Icon Image
-
-	IconScale float32
+	HoverColor color.Color
+	Icon       Image
+	IconScale  float32
+	Text       string
+	Type       ButtonType
 }
 
 type ButtonType int
@@ -65,9 +65,15 @@ func (b *Button) Handle(ctx Context, e Event) {
 
 func (b *Button) fillColor(p *Palette) color.Color {
 	if b.Background != nil {
+		if b.over && b.HoverColor != nil {
+			return b.HoverColor
+		}
 		return b.Background
 	}
 	if b.over {
+		if b.HoverColor != nil {
+			return b.HoverColor
+		}
 		switch b.Type {
 		case ButtonTypeContained:
 			return p.PrimaryLight
@@ -138,7 +144,8 @@ func (b *Button) Render(ctx Context) {
 		var font = ctx.Renderer().Font(fontName)
 		ctx.Renderer().Text(geom.PtF32(pos.X, pos.Y+.5*(bounds.Dy()-font.Height())), fontName, textColor, b.Text)
 	}
+
 	if b.Type == ButtonTypeOutlined {
-		ctx.Renderer().Rectangle(b.bounds, palette.TextDisabled, 1)
+		b.RenderOutline(ctx)
 	}
 }

ui/controlbase.go

@@ -129,9 +129,7 @@ func (c *ControlBase) OnDragMove(fn DragMoveFn) {
 	c.onDragMove = fn
 }
 
-func (c *ControlBase) OnDragEnd(fn DragEndFn) {
-	c.onDragEnd = fn
-}
+func (c *ControlBase) Render(Context) {}
 
 func (c *ControlBase) RenderBackground(ctx Context) {
 	if c.Background != nil {
@@ -139,5 +137,12 @@ func (c *ControlBase) RenderBackground(ctx Context) {
 	}
 }
 
-func (c *ControlBase) Render(Context) {
+func (c *ControlBase) RenderOutline(ctx Context) {
+	style := ctx.Style()
+	width := style.Dimensions.OutlineWidth
+	color := style.Palette.Primary
+	if c.Font.Color != nil {
+		color = c.Font.Color
+	}
+	ctx.Renderer().Rectangle(c.bounds.Inset(.5*width), color, width)
 }

ui/style.go

@@ -8,6 +8,7 @@ var defaultPalette *Palette
 var defaultStyle *Style
 
 type Dimensions struct {
+	OutlineWidth   float32
 	ScrollbarWidth float32
 	TextPadding    float32
 }
@@ -46,6 +47,7 @@ type Style struct {
 func DefaultDimensions() *Dimensions {
 	if defaultDimensions == nil {
 		defaultDimensions = &Dimensions{
+			OutlineWidth:   2.,
 			ScrollbarWidth: 16.,
 			TextPadding:    8.,
 		}

ui/textbox.go

@@ -35,10 +35,9 @@ type TextBox struct {
 	box   BufferControl
 	blink time.Time
 
-	BorderWidth *Length
-	Focus       bool
-	Text        string
-	Selection   TextSelection
+	Focus     bool
+	Text      string
+	Selection TextSelection
 }
 
 func BuildTextBox(fn func(*TextBox)) *TextBox {
@@ -49,12 +48,8 @@ func BuildTextBox(fn func(*TextBox)) *TextBox {
 	return b
 }
 
-func (b *TextBox) borderWidth() float32 {
-	return b.BorderWidth.Zero(2)
-}
-
 func (b *TextBox) pad(ctx Context) float32 {
-	return ctx.Style().Dimensions.TextPadding + b.borderWidth()
+	return ctx.Style().Dimensions.TextPadding
 }
 
 func (b *TextBox) Arrange(ctx Context, bounds geom.RectangleF32, offset geom.PointF32) {
@@ -239,11 +234,11 @@ func (b *TextBox) Handle(ctx Context, e Event) {
 
 func (b *TextBox) Render(ctx Context) {
 	b.RenderBackground(ctx)
+	b.RenderOutline(ctx)
+
 	c := b.FontColor(ctx)
 	f := b.FontName(ctx)
 	style := ctx.Style()
-	borderWidth := b.borderWidth()
-	ctx.Renderer().Rectangle(b.bounds.Inset(.5*borderWidth), style.Palette.Primary, borderWidth)
 	var caretWidth float32 = 1
 	b.box.RenderFn(ctx, func(_ Context, size geom.PointF32) {
 		var renderer = ctx.Renderer()