I keep forgetting to commit stuff

button.go

@@ -16,7 +16,7 @@ type Button struct {
 // NewButton creates a new button with the specified text.
 func NewButton (text string) *Button {
 	box := &Button { TextBox: tomo.NewTextBox() }
-	theme.Apply(box, theme.R("objects", "Button"))
+	theme.Apply(box, theme.R("objects", "Button", ""))
 	box.SetText(text)
 	box.SetAlign(tomo.AlignMiddle, tomo.AlignMiddle)
 	box.OnMouseUp(box.handleMouseUp)

container.go

@@ -0,0 +1,39 @@
+package objects
+
+import "git.tebibyte.media/tomo/tomo"
+import "git.tebibyte.media/tomo/tomo/theme"
+
+// Container is an object that can contain other objects. It can be used as a
+// primitive for building more complex layouts. It has two variants: an outer
+// container, and an inner container. The outer container has padding around
+// its edges, whereas the inner container does not. The container will have a
+// corresponding object role variation of either "outer" or "inner".
+type Container struct {
+	tomo.ContainerBox
+}
+
+func newContainer (layout tomo.Layout, children ...tomo.Object) *Container {
+	this := &Container {
+		ContainerBox: tomo.NewContainerBox(),
+	}
+	this.SetLayout(layout)
+	for _, child := range children {
+		this.Add(child)
+	}
+	return this
+}
+
+// NewOuterContainer creates a new container that has padding around it.
+func NewOuterContainer (layout tomo.Layout, children ...tomo.Object) *Container {
+	this := newContainer(layout, children...)
+	theme.Apply(this, theme.R("objects", "Container", "outer"))
+	return this
+}
+
+// NewInnerContainer creates a new container that has no padding around it.
+func NewInnerContainer (layout tomo.Layout, children ...tomo.Object) *Container {
+	this := newContainer(layout, children...)
+	theme.Apply(this, theme.R("objects", "Container", "inner"))
+	return this
+}
+

go.mod

@@ -2,6 +2,6 @@ module git.tebibyte.media/tomo/objects
 
 go 1.20
 
-require git.tebibyte.media/tomo/tomo v0.20.0
+require git.tebibyte.media/tomo/tomo v0.23.0
 
-require golang.org/x/image v0.8.0 // indirect
+require golang.org/x/image v0.11.0 // indirect

go.sum

@@ -1,10 +1,10 @@
-git.tebibyte.media/tomo/tomo v0.20.0 h1:dJJWmCAj/8XtbxjiCkgykP2vNCeP5zuvMEKGChbQ0AI=
-git.tebibyte.media/tomo/tomo v0.20.0/go.mod h1:lTwjpiHbP4UN/kFw+6FwhG600B+PMKVtMOr7wpd5IUY=
+git.tebibyte.media/tomo/tomo v0.23.0 h1:OZwI4oLKMP7JqFc98VxBoRxwjL+W9NyTQZLB/m1BvaA=
+git.tebibyte.media/tomo/tomo v0.23.0/go.mod h1:C9EzepS9wjkTJjnZaPBh22YvVPyA4hbBAJVU20Rdmps=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/image v0.8.0 h1:agUcRXV/+w6L9ryntYYsF2x9fQTMd4T8fiiYXAVW6Jg=
-golang.org/x/image v0.8.0/go.mod h1:PwLxp3opCYg4WR2WO9P0L6ESnsD6bLTWcw8zanLMVFM=
+golang.org/x/image v0.11.0 h1:ds2RoQvBvYTiJkwpSFDwCcDFNX7DqjL2WsUgTNk0Ooo=
+golang.org/x/image v0.11.0/go.mod h1:bglhjqbqVuEb9e9+eNR45Jfu7D+T4Qan+NhQk8Ck2P8=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -27,7 +27,7 @@ golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.10.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=

heading.go

@@ -0,0 +1,23 @@
+package objects
+
+import "fmt"
+import "git.tebibyte.media/tomo/tomo"
+import "git.tebibyte.media/tomo/tomo/theme"
+
+// Heading is a label that denotes the start of some section of content. It can
+// have a level from 0 to 2, with 0 being the most prominent and 2 being the
+// most subtle. The level is described in the role variation.
+type Heading struct {
+	tomo.TextBox
+}
+
+// NewHeading creates a new section heading. The level can be from 0 to 2.
+func NewHeading (level int, text string) *Label {
+	if level < 0 { level = 0 }
+	if level > 2 { level = 2 }
+	this := &Label { TextBox: tomo.NewTextBox() }
+	theme.Apply(this, theme.R("objects", "Heading", fmt.Sprint(level)))
+	this.SetText(text)
+	return this
+}
+

input.go

@@ -18,7 +18,7 @@ type TextInput struct {
 // NewTextInput creates a new text input containing the specified text.
 func NewTextInput (text string) *TextInput {
 	this := &TextInput { TextBox: tomo.NewTextBox() }
-	theme.Apply(this, theme.R("objects", "TextInput"))
+	theme.Apply(this, theme.R("objects", "TextInput", ""))
 	this.SetText(text)
 	this.SetFocusable(true)
 	this.SetSelectable(true)

label.go

@@ -11,7 +11,7 @@ type Label struct {
 // NewLabel creates a new text label.
 func NewLabel (text string) *Label {
 	this := &Label { TextBox: tomo.NewTextBox() }
-	theme.Apply(this, theme.R("objects", "Label"))
+	theme.Apply(this, theme.R("objects", "Label", ""))
 	this.SetText(text)
 	return this
 }

layouts/layouts.go

@@ -0,0 +1,88 @@
+package layouts
+
+import "image"
+import "git.tebibyte.media/tomo/tomo"
+
+type Row struct { }
+
+func (Row) MinimumSize (hints tomo.LayoutHints, boxes []tomo.Box) image.Point {
+	dot := image.Point { }
+	for _, box := range boxes {
+		minimum := box.MinimumSize()
+		dot.X += minimum.X
+		if dot.Y < minimum.Y {
+			dot.Y = minimum.Y
+		}
+	}
+	dot.X += hints.Gap.X * (len(boxes) - 1)
+	return dot
+}
+
+func (Row) Arrange (hints tomo.LayoutHints, boxes []tomo.Box) {
+	// TODO respect alignment value
+	dot := hints.Bounds.Min
+	for index, box := range boxes {
+		if index > 0 { dot.X += hints.Gap.X }
+		minimum := box.MinimumSize()
+		box.SetBounds(image.Rectangle {
+			Min: dot,
+			Max: dot.Add(image.Pt(minimum.X, hints.Bounds.Dy())),
+		})
+		dot.X += minimum.X
+	}
+
+	width  := dot.X - hints.Bounds.Min.X
+	offset := 0
+	
+	switch hints.AlignX {
+	case tomo.AlignMiddle:
+		offset = (hints.Bounds.Dx() - width) / 2
+	case tomo.AlignEnd:
+		offset = hints.Bounds.Dx() - width
+	}
+	for _, box := range boxes {
+		box.SetBounds(box.Bounds().Add(image.Pt(offset, 0)))
+	}
+}
+
+type Column struct { }
+
+func (Column) MinimumSize (hints tomo.LayoutHints, boxes []tomo.Box) image.Point {
+	dot := image.Point { }
+	for _, box := range boxes {
+		minimum := box.MinimumSize()
+		dot.Y += minimum.Y
+		if dot.X < minimum.X {
+			dot.X = minimum.X
+		}
+	}
+	dot.Y += hints.Gap.Y * (len(boxes) - 1)
+	return dot
+}
+
+func (Column) Arrange (hints tomo.LayoutHints, boxes []tomo.Box) {
+	// TODO respect alignment value
+	dot := hints.Bounds.Min
+	for index, box := range boxes {
+		if index > 0 { dot.Y += hints.Gap.Y }
+		minimum := box.MinimumSize()
+		box.SetBounds(image.Rectangle {
+			Min: dot,
+			Max: dot.Add(image.Pt(hints.Bounds.Dx(), minimum.Y)),
+		})
+		dot.Y += minimum.Y
+	}
+	
+	height := dot.Y - hints.Bounds.Min.Y
+	offset := 0
+	
+	switch hints.AlignY {
+	case tomo.AlignMiddle:
+		offset = (hints.Bounds.Dy() - height) / 2
+	case tomo.AlignEnd:
+		offset = hints.Bounds.Dy() - height
+	}
+	for _, box := range boxes {
+		box.SetBounds(box.Bounds().Add(image.Pt(0, offset)))
+	}
+}

separator.go

@@ -0,0 +1,15 @@
+package objects
+
+import "git.tebibyte.media/tomo/tomo"
+import "git.tebibyte.media/tomo/tomo/theme"
+
+// Separator is a line for visually separating elements.
+type Separator tomo.Box
+
+// NewSeparator creates a new text label.
+func NewSeparator () Separator {
+	this := Separator(tomo.NewBox())
+	theme.Apply(this, theme.R("objects", "Separator", ""))
+	return this
+}
+

slider.go

@@ -0,0 +1,38 @@
+package objects
+
+import "git.tebibyte.media/tomo/tomo"
+import "git.tebibyte.media/tomo/tomo/theme"
+
+
+type Slider struct {
+	tomo.ContainerBox
+	handle *SliderHandle
+	vertical bool
+}
+
+type SliderHandle struct {
+	tomo.Box
+}
+
+func newSlider (orient string) *Slider {
+	this := &Slider {
+		ContainerBox: tomo.NewContainerBox(),
+		handle: &SliderHandle {
+			Box: tomo.NewBox(),
+		},
+		vertical: orient == "vertical",
+	}
+	
+	this.Add(this.handle)
+	theme.Apply(this.handle, theme.R("objects", "SliderHandle", orient))
+	theme.Apply(this,        theme.R("objects", "Slider", orient))
+	return this
+}
+
+func NewVerticalSlider () *Slider {
+	return newSlider("vertical")
+}
+
+func NewHorizontalSlider () *Slider {
+	return newSlider("horizontal")
+}