Half-done implementation of file elements

elements/directory.go

@@ -0,0 +1,114 @@
+package elements
+
+import "image"
+import "path/filepath"
+import "git.tebibyte.media/sashakoshka/tomo"
+
+// TODO: base on flow implementation of list. also be able to switch to a table
+// variant for a more information dense view.
+
+type historyEntry struct {
+	location string
+	filesystem ReadDirStatFS
+}
+
+// Directory displays a list of files within a particular directory and
+// file system.
+type Directory struct {
+	*List
+	history      []historyEntry
+	historyIndex int
+	onChoose     func (file string)
+}
+
+// NewDirectory creates a new directory view. If within is nil, it will use
+// the OS file system.
+func NewDirectory (
+	location string,
+	within ReadDirStatFS,
+) (
+	element *Directory,
+	err error,
+) {
+	element = &Directory {
+		List: NewList(8),
+	}
+	err = element.SetLocation(location, within)
+	return
+}
+
+// Location returns the directory's location and filesystem.
+func (element *Directory) Location () (string, ReadDirStatFS) {
+	if len(element.history) < 1 { return "", nil }
+	current := element.history[element.historyIndex]
+	return current.location, current.filesystem
+}
+
+// SetLocation sets the directory's location and filesystem. If within is nil,
+// it will use the OS file system.
+func (element *Directory) SetLocation (
+	location string,
+	within ReadDirStatFS,
+) error {
+	if within == nil {
+		within = defaultFS { }
+	}
+	element.scroll = image.Point { }
+
+	if element.history != nil {
+		element.historyIndex ++
+	}
+	element.history = append (
+		element.history[:element.historyIndex],
+		historyEntry { location, within })
+	return element.Update()
+}
+
+// Backward goes back a directory in history
+func (element *Directory) Backward () (bool, error) {
+	if element.historyIndex > 1 {
+		element.historyIndex --
+		return true, element.Update()
+	} else {
+		return false, nil
+	}
+}
+
+// Forward goes forward a directory in history
+func (element *Directory) Forward () (bool, error) {
+	if element.historyIndex < len(element.history) - 1 {
+		element.historyIndex ++
+		return true, element.Update()
+	} else {
+		return false, nil
+	}
+}
+
+// Update refreshes the directory's contents.
+func (element *Directory) Update () error {
+	location, filesystem := element.Location()
+	entries, err := filesystem.ReadDir(location)
+
+	children := make([]tomo.Element, len(entries))
+	for index, entry := range entries {
+		filePath := filepath.Join(location, entry.Name())
+		file, _ := NewFile(filePath, filesystem)
+		file.OnChoose (func () {
+			if element.onChoose != nil {
+				element.onChoose(filePath)
+			}
+		})
+		
+		children[index] = file
+	}
+	
+	element.DisownAll()
+	element.Adopt(children...)
+	return err
+}
+
+// OnChoose sets a function to be called when the user double-clicks a file or
+// sub-directory within the directory view.
+func (element *Directory) OnChoose (callback func (file string)) {
+	element.onChoose = callback
+}

elements/file.go

@@ -1,4 +1,4 @@
-package fileElements
+package elements
 
 import "time"
 import "io/fs"
@@ -6,27 +6,29 @@ import "image"
 import "git.tebibyte.media/sashakoshka/tomo"
 import "git.tebibyte.media/sashakoshka/tomo/input"
 import "git.tebibyte.media/sashakoshka/tomo/artist"
-import "git.tebibyte.media/sashakoshka/tomo/elements/core"
+import "git.tebibyte.media/sashakoshka/tomo/canvas"
 import "git.tebibyte.media/sashakoshka/tomo/default/theme"
 import "git.tebibyte.media/sashakoshka/tomo/default/config"
 
+type fileEntity interface {
+	tomo.SelectableEntity
+	tomo.FocusableEntity
+}
+
 // File displays an interactive visual representation of a file within any
 // file system.
 type File struct {
-	*core.Core
+	entity fileEntity
-	*core.FocusableCore
-	core core.CoreControl
-	focusableControl core.FocusableCoreControl
 	
 	config config.Wrapped
 	theme  theme.Wrapped
 
 	lastClick  time.Time
 	pressed    bool
+	enabled    bool
 	iconID     tomo.Icon
 	filesystem fs.StatFS
 	location   string
-	selected   bool
 	
 	onChoose   func ()
 }
@@ -40,15 +42,44 @@ func NewFile (
 	element *File,
 	err error,
 ) {
-	element = &File { }
+	element = &File { enabled: true }
 	element.theme.Case = tomo.C("files", "file")
-	element.Core, element.core = core.NewCore(element, element.drawAll)
+	element.entity = tomo.NewEntity(element).(fileEntity)
-	element.FocusableCore,
-	element.focusableControl = core.NewFocusableCore(element.core, element.drawAndPush)
 	err = element.SetLocation(location, within)
 	return
 }
 
+// Entity returns this element's entity.
+func (element *File) Entity () tomo.Entity {
+	return element.entity
+}
+
+// Draw causes the element to draw to the specified destination canvas.
+func (element *File) Draw (destination canvas.Canvas) {
+	// background
+	state  := element.state()
+	bounds := element.entity.Bounds()
+	sink   := element.theme.Sink(tomo.PatternButton)
+	element.theme.
+		Pattern(tomo.PatternButton, state).
+		Draw(destination, bounds)
+
+	// icon
+	icon := element.icon()
+	if icon != nil {
+		iconBounds := icon.Bounds()
+		offset := image.Pt (
+			(bounds.Dx() - iconBounds.Dx()) / 2,
+			(bounds.Dy() - iconBounds.Dy()) / 2)
+		if element.pressed {
+			offset = offset.Add(sink)
+		}
+		icon.Draw (
+			destination,
+			element.theme.Color(tomo.ColorForeground, state),
+			bounds.Min.Add(offset))
+	}
+}
 // Location returns the file's location and filesystem.
 func (element *File) Location () (string, fs.StatFS) {
 	return element.location, element.filesystem
@@ -82,55 +113,66 @@ func (element *File) Update () error {
 	}
 
 	element.updateMinimumSize()
-	element.drawAndPush()
+	element.entity.Invalidate()
 	return err
 }
 
-func (element *File) Selected () bool {
-	return element.selected
-}
-
-func (element *File) SetSelected (selected bool) {
-	if element.selected == selected { return }
-	element.selected = selected
-	element.drawAndPush()
-}
-
 func (element *File) HandleKeyDown (key input.Key, modifiers input.Modifiers) {
 	if !element.Enabled() { return }
 	if key == input.KeyEnter {
 		element.pressed = true
-		element.drawAndPush()
+		element.entity.Invalidate()
 	}
 }
 
 func (element *File) HandleKeyUp(key input.Key, modifiers input.Modifiers) {
 	if key == input.KeyEnter && element.pressed {
 		element.pressed = false
-		element.drawAndPush()
 		if !element.Enabled() { return }
+		element.entity.Invalidate()
 		if element.onChoose != nil {
 			element.onChoose()
 		}
 	}
 }
 
+func (element *File) HandleFocusChange () {
+	element.entity.Invalidate()
+}
+
 func (element *File) OnChoose (callback func ()) {
 	element.onChoose = callback
 }
 
+// Focus gives this element input focus.
+func (element *File) Focus () {
+	if !element.entity.Focused() { element.entity.Focus() }
+}
+
+// Enabled returns whether this file is enabled or not.
+func (element *File) Enabled () bool {
+	return element.enabled
+}
+
+// SetEnabled sets whether this file is enabled or not.
+func (element *File) SetEnabled (enabled bool) {
+	if element.enabled == enabled { return }
+	element.enabled = enabled
+	element.entity.Invalidate()
+}
+
 func (element *File) HandleMouseDown (x, y int, button input.Button) {
 	if !element.Enabled() { return }
-	if !element.Focused() { element.Focus() }
+	if !element.entity.Focused() { element.Focus() }
 	if button != input.ButtonLeft { return }
 	element.pressed = true
-	element.drawAndPush()
+	element.entity.Invalidate()
 }
 
 func (element *File) HandleMouseUp (x, y int, button input.Button) {
 	if button != input.ButtonLeft { return }
 	element.pressed = false
-	within := image.Point { x, y }.In(element.Bounds())
+	within := image.Point { x, y }.In(element.entity.Bounds())
 	if time.Since(element.lastClick) < element.config.DoubleClickDelay() {
 		if element.Enabled() && within && element.onChoose != nil {
 			element.onChoose()
@@ -138,29 +180,29 @@ func (element *File) HandleMouseUp (x, y int, button input.Button) {
 	} else {
 		element.lastClick = time.Now()
 	}
-	element.drawAndPush()
+	element.entity.Invalidate()
 }
 
 // SetTheme sets the element's theme.
-func (element *File) SetTheme (new tomo.Theme) {
+func (element *File) SetTheme (theme tomo.Theme) {
-	if new == element.theme.Theme { return }
+	if theme == element.theme.Theme { return }
-	element.theme.Theme = new
+	element.theme.Theme = theme
-	element.drawAndPush()
+	element.entity.Invalidate()
 }
 
 // SetConfig sets the element's configuration.
-func (element *File) SetConfig (new tomo.Config) {
+func (element *File) SetConfig (config tomo.Config) {
-	if new == element.config.Config { return }
+	if config == element.config.Config { return }
-	element.config.Config = new
+	element.config.Config = config
-	element.drawAndPush()
+	element.entity.Invalidate()
 }
 
 func (element *File) state () tomo.State {
 	return tomo.State {
 		Disabled: !element.Enabled(),
-		Focused:  element.Focused(),
+		Focused:  element.entity.Focused(),
 		Pressed:  element.pressed,
-		On:       element.selected,
+		On:       element.entity.Selected(),
 	}
 }
 
@@ -172,44 +214,11 @@ func (element *File) updateMinimumSize () {
 	padding := element.theme.Padding(tomo.PatternButton)
 	icon := element.icon()
 	if icon == nil {
-		element.core.SetMinimumSize (
+		element.entity.SetMinimumSize (
 			padding.Horizontal(),
 			padding.Vertical())
 	} else {
 		bounds := padding.Inverse().Apply(icon.Bounds())
-		element.core.SetMinimumSize(bounds.Dx(), bounds.Dy())
+		element.entity.SetMinimumSize(bounds.Dx(), bounds.Dy())
-	}
-}
-
-func (element *File) drawAndPush () {
-	if element.core.HasImage() {
-		element.drawAll()
-		element.core.DamageAll()
-	}
-}
-
-func (element *File) drawAll () {
-	// background
-	state  := element.state()
-	bounds := element.Bounds()
-	sink   := element.theme.Sink(tomo.PatternButton)
-	element.theme.
-		Pattern(tomo.PatternButton, state).
-		Draw(element.core, bounds)
-
-	// icon
-	icon := element.icon()
-	if icon != nil {
-		iconBounds := icon.Bounds()
-		offset := image.Pt (
-			(bounds.Dx() - iconBounds.Dx()) / 2,
-			(bounds.Dy() - iconBounds.Dy()) / 2)
-		if element.pressed {
-			offset = offset.Add(sink)
-		}
-		icon.Draw (
-			element.core,
-			element.theme.Color(tomo.ColorForeground, state),
-			bounds.Min.Add(offset))
 	}
 }

elements/fs.go

@@ -1,4 +1,4 @@
-package fileElements
+package elements
 
 import "os"
 import "io/fs"

elements/list.go

@@ -7,6 +7,15 @@ import "git.tebibyte.media/sashakoshka/tomo/canvas"
 import "git.tebibyte.media/sashakoshka/tomo/artist"
 import "git.tebibyte.media/sashakoshka/tomo/default/theme"
 
+// TODO: make hidden variants:
+// vertical: one column.
+// flow:     acts like DocumentContainer with all inline elements.
+// create wrapper elements for making a plain version of each of these, but keep
+// the implementations private (but with public methods) so they can be included
+// in other elements.
+// have table be a very tabular thing with named columns that can be sorted,
+// resized, etc.
+
 type listEntity interface {
 	tomo.ContainerEntity
 	tomo.ScrollableEntity
@@ -36,10 +45,7 @@ func NewList (columns int, children ...tomo.Element) (element *List) {
 	element.columnSizes = make([]int, columns)
 	element.theme.Case = tomo.C("tomo", "list")
 	element.entity = tomo.NewEntity(element).(listEntity)
-
+	element.Adopt(children...)
-	for _, child := range children {
-		element.Adopt(child)
-	}
 	return
 }
 
@@ -117,23 +123,27 @@ func (element *List) Layout () {
 	}
 }
 
-func (element *List) Adopt (child tomo.Element) {
+func (element *List) Adopt (children ...tomo.Element) {
-	element.entity.Adopt(child)
+	for _, child := range children {
-	element.scratch[child] = scratchEntry { }
+		element.entity.Adopt(child)
+		element.scratch[child] = scratchEntry { }
+	}
 	element.updateMinimumSize()
 	element.entity.Invalidate()
 	element.entity.InvalidateLayout()
 }
 
-func (element *List) Disown (child tomo.Element) {
+func (element *List) Disown (children ...tomo.Element) {
-	index := element.entity.IndexOf(child)
+	for _, child := range children {
-	if index < 0 { return }
+		index := element.entity.IndexOf(child)
-	if index == element.selected {
+		if index < 0 { return }
-		element.selected = -1
+		if index == element.selected {
-		element.entity.SelectChild(index, false)
+			element.selected = -1
+			element.entity.SelectChild(index, false)
+		}
+		element.entity.Disown(index)
+		delete(element.scratch, child)
 	}
-	element.entity.Disown(index)
-	delete(element.scratch, child)
 	element.updateMinimumSize()
 	element.entity.Invalidate()
 	element.entity.InvalidateLayout()

elements/notdone/directory.go

@@ -1,378 +0,0 @@
-package fileElements
-
-import "io/fs"
-import "image"
-import "path/filepath"
-import "git.tebibyte.media/sashakoshka/tomo"
-import "git.tebibyte.media/sashakoshka/tomo/input"
-import "git.tebibyte.media/sashakoshka/tomo/artist"
-import "git.tebibyte.media/sashakoshka/tomo/canvas"
-import "git.tebibyte.media/sashakoshka/tomo/textdraw"
-import "git.tebibyte.media/sashakoshka/tomo/elements/core"
-import "git.tebibyte.media/sashakoshka/tomo/default/theme"
-import "git.tebibyte.media/sashakoshka/tomo/default/config"
-
-type fileLayoutEntry struct {
-	*File
-	fs.DirEntry
-	Bounds image.Rectangle
-	Drawer textdraw.Drawer
-	TextPoint image.Point
-}
-
-type historyEntry struct {
-	location string
-	filesystem ReadDirStatFS
-}
-
-// Directory displays a list of files within a particular directory and
-// file system.
-type Directory struct {
-	*core.Core
-	*core.Propagator
-	core core.CoreControl
-
-	children []fileLayoutEntry
-	scroll   image.Point
-	contentBounds image.Rectangle
-	
-	config config.Wrapped
-	theme  theme.Wrapped
-
-	onScrollBoundsChange func ()
-
-	history      []historyEntry
-	historyIndex int
-	onChoose func (file string)
-}
-
-// NewDirectory creates a new directory view. If within is nil, it will use
-// the OS file system.
-func NewDirectory (
-	location string,
-	within ReadDirStatFS,
-) (
-	element *Directory,
-	err error,
-) {
-	element = &Directory { }
-	element.theme.Case = tomo.C("files", "directory")
-	element.Core, element.core = core.NewCore(element, element.redoAll)
-	element.Propagator = core.NewPropagator(element, element.core)
-	err = element.SetLocation(location, within)
-	return
-}
-
-// Location returns the directory's location and filesystem.
-func (element *Directory) Location () (string, ReadDirStatFS) {
-	if len(element.history) < 1 { return "", nil }
-	current := element.history[element.historyIndex]
-	return current.location, current.filesystem
-}
-
-// SetLocation sets the directory's location and filesystem. If within is nil,
-// it will use the OS file system.
-func (element *Directory) SetLocation (
-	location string,
-	within ReadDirStatFS,
-) error {
-	if within == nil {
-		within = defaultFS { }
-	}
-	element.scroll = image.Point { }
-
-	if element.history != nil {
-		element.historyIndex ++
-	}
-	element.history = append (
-		element.history[:element.historyIndex],
-		historyEntry { location, within })
-	return element.Update()
-}
-
-// Backward goes back a directory in history
-func (element *Directory) Backward () (bool, error) {
-	if element.historyIndex > 1 {
-		element.historyIndex --
-		return true, element.Update()
-	} else {
-		return false, nil
-	}
-}
-
-// Forward goes forward a directory in history
-func (element *Directory) Forward () (bool, error) {
-	if element.historyIndex < len(element.history) - 1 {
-		element.historyIndex ++
-		return true, element.Update()
-	} else {
-		return false, nil
-	}
-}
-
-// Update refreshes the directory's contents.
-func (element *Directory) Update () error {
-	location, filesystem := element.Location()
-	entries, err := filesystem.ReadDir(location)
-
-	// disown all entries
-	for _, file := range element.children {
-		file.DrawTo(nil, image.Rectangle { }, nil)
-		file.SetParent(nil)
-		
-		if file.Focused() {
-			file.HandleUnfocus()
-		}
-	}
-
-	element.children = make([]fileLayoutEntry, len(entries))
-	for index, entry := range entries {
-		filePath := filepath.Join(location, entry.Name())
-		file, _ := NewFile(filePath, filesystem)
-		file.SetParent(element)
-		file.OnChoose (func () {
-			if element.onChoose != nil {
-				element.onChoose(filePath)
-			}
-		})
-		element.children[index].File = file
-		element.children[index].DirEntry = entry
-		element.children[index].Drawer.SetFace (element.theme.FontFace(
-			tomo.FontStyleRegular,
-			tomo.FontSizeNormal))
-		element.children[index].Drawer.SetText([]rune(entry.Name()))
-		element.children[index].Drawer.SetAlign(textdraw.AlignCenter)
-	}
-	
-	if element.core.HasImage() {
-		element.redoAll()
-		element.core.DamageAll()
-	}
-	return err
-}
-
-// OnChoose sets a function to be called when the user double-clicks a file or
-// sub-directory within the directory view.
-func (element *Directory) OnChoose (callback func (file string)) {
-	element.onChoose = callback
-}
-
-// CountChildren returns the amount of children contained within this element.
-func (element *Directory) CountChildren () (count int) {
-	return len(element.children)
-}
-
-// Child returns the child at the specified index. If the index is out of
-// bounds, this method will return nil.
-func (element *Directory) Child (index int) (child tomo.Element) {
-	if index < 0 || index > len(element.children) { return }
-	return element.children[index].File
-}
-
-func (element *Directory) HandleMouseDown (x, y int, button input.Button) {
-	if button == input.ButtonLeft {
-		var file *File
-		for _, entry := range element.children {
-			if image.Pt(x, y).In(entry.Bounds) {
-				file = entry.File
-			}
-		}
-		if file != nil {
-			file.SetSelected(!file.Selected())
-		}
-	}
-	element.Propagator.HandleMouseDown(x, y, button)
-}
-
-func (element *Directory) redoAll () {
-	if !element.core.HasImage() { return }
-	
-	// do a layout
-	element.doLayout()
-	
-	maxScrollHeight := element.maxScrollHeight()
-	if element.scroll.Y > maxScrollHeight {
-		element.scroll.Y = maxScrollHeight
-		element.doLayout()
-	}
-
-	// draw a background
-	rocks := make([]image.Rectangle, len(element.children))
-	for index, entry := range element.children {
-		rocks[index] = entry.Bounds
-	}
-	pattern := element.theme.Pattern (
-		tomo.PatternPinboard,
-		tomo.State { })
-	artist.DrawShatter(element.core, pattern, element.Bounds(), rocks...)
-
-	element.partition()
-	if parent, ok := element.core.Parent().(tomo.ScrollableParent); ok {
-		parent.NotifyScrollBoundsChange(element)
-	}
-	if element.onScrollBoundsChange != nil {
-		element.onScrollBoundsChange()
-	}
-
-	// draw labels
-	foreground := element.theme.Color(tomo.ColorForeground, tomo.State { })
-	for _, entry := range element.children {
-		entry.Drawer.Draw(element.core, foreground, entry.TextPoint)
-	}
-}
-
-func (element *Directory) partition () {
-	for _, entry := range element.children {
-		entry.DrawTo(nil, entry.Bounds, nil)
-	}
-
-	// cut our canvas up and give peices to child elements
-	for _, entry := range element.children {
-		if entry.Bounds.Overlaps(element.Bounds()) {
-			entry.DrawTo (	
-				canvas.Cut(element.core, entry.Bounds),
-				entry.Bounds, func (region image.Rectangle) {
-					element.core.DamageRegion(region)
-				})
-		}
-	}
-}
-
-func (element *Directory) Window () tomo.Window {
-	return element.core.Window()
-}
-
-// NotifyMinimumSizeChange notifies the container that the minimum size of a
-// child element has changed.
-func (element *Directory) NotifyMinimumSizeChange (child tomo.Element) {
-	element.redoAll()
-	element.core.DamageAll()
-}
-
-// SetTheme sets the element's theme.
-func (element *Directory) SetTheme (new tomo.Theme) {
-	if new == element.theme.Theme { return }
-	element.theme.Theme = new
-	element.Propagator.SetTheme(new)
-	element.redoAll()
-}
-
-// SetConfig sets the element's configuration.
-func (element *Directory) SetConfig (new tomo.Config) {
-	if new == element.config.Config { return }
-	element.Propagator.SetConfig(new)
-	element.redoAll()
-}
-// ScrollContentBounds returns the full content size of the element.
-func (element *Directory) ScrollContentBounds () image.Rectangle {
-	return element.contentBounds
-}
-
-// ScrollViewportBounds returns the size and position of the element's
-// viewport relative to ScrollBounds.
-func (element *Directory) ScrollViewportBounds () image.Rectangle {
-	padding := element.theme.Padding(tomo.PatternPinboard)
-	bounds  := padding.Apply(element.Bounds())
-	bounds   = bounds.Sub(bounds.Min).Add(element.scroll)
-	return bounds
-}
-
-// ScrollTo scrolls the viewport to the specified point relative to
-// ScrollBounds.
-func (element *Directory) ScrollTo (position image.Point) {
-	if position.Y < 0 {
-		position.Y = 0
-	}
-	maxScrollHeight := element.maxScrollHeight()
-	if position.Y > maxScrollHeight {
-		position.Y = maxScrollHeight
-	}
-	element.scroll = position
-	if element.core.HasImage() {
-		element.redoAll()
-		element.core.DamageAll()
-	}
-}
-
-// OnScrollBoundsChange sets a function to be called when the element's viewport
-// bounds, content bounds, or scroll axes change.
-func (element *Directory) OnScrollBoundsChange (callback func ()) {
-	element.onScrollBoundsChange = callback
-}
-
-// ScrollAxes returns the supported axes for scrolling.
-func (element *Directory) ScrollAxes () (horizontal, vertical bool) {
-	return false, true
-}
-
-func (element *Directory) maxScrollHeight () (height int) {
-	padding := element.theme.Padding(tomo.PatternSunken)
-	viewportHeight := element.Bounds().Dy() - padding.Vertical()
-	height = element.contentBounds.Dy() - viewportHeight
-	if height < 0 { height = 0 }
-	return
-}
-
-func (element *Directory) doLayout () {
-	margin := element.theme.Margin(tomo.PatternPinboard)
-	padding := element.theme.Padding(tomo.PatternPinboard)
-	bounds := padding.Apply(element.Bounds())
-	element.contentBounds = image.Rectangle { }
-
-	beginningOfRow := true
-	dot := bounds.Min.Sub(element.scroll)
-	rowHeight := 0
-	for index, entry := range element.children {
-		width, height := entry.MinimumSize()
-		
-		if dot.X + width > bounds.Max.X {
-			dot.X = bounds.Min.Sub(element.scroll).X
-			dot.Y += rowHeight
-			if index > 1 {
-				dot.Y += margin.Y
-			}
-			beginningOfRow = true
-		}
-		
-		if beginningOfRow {
-			beginningOfRow = false
-		} else {
-			dot.X += margin.X
-		}
-	
-		entry.Drawer.SetMaxWidth(width)
-		bounds := image.Rect(dot.X, dot.Y, dot.X + width, dot.Y + height)
-		entry.Bounds = bounds
-		
-		drawerHeight := entry.Drawer.ReccomendedHeightFor(width)
-		entry.TextPoint =
-			image.Pt(bounds.Min.X, bounds.Max.Y + margin.Y).
-			Sub(entry.Drawer.LayoutBounds().Min)
-		bounds.Max.Y += margin.Y + drawerHeight
-		height += margin.Y + drawerHeight
-		if rowHeight < height {
-			rowHeight = height
-		}
-		
-		element.contentBounds = element.contentBounds.Union(bounds)
-		element.children[index] = entry
-		dot.X += width
-	}
-	
-	element.contentBounds =
-		element.contentBounds.Sub(element.contentBounds.Min)
-}
-
-func (element *Directory) updateMinimumSize () {
-	padding := element.theme.Padding(tomo.PatternPinboard)
-	minimumWidth := 0
-	for _, entry := range element.children {
-		width, _ := entry.MinimumSize()
-		if width > minimumWidth {
-			minimumWidth = width
-		}
-	}
-	element.core.SetMinimumSize (
-		minimumWidth + padding.Horizontal(),
-		padding.Vertical())
-}

examples/fileBrowser/main.go

@@ -3,10 +3,7 @@ package main
 import "os"
 import "path/filepath"
 import "git.tebibyte.media/sashakoshka/tomo"
-import "git.tebibyte.media/sashakoshka/tomo/layouts"
 import "git.tebibyte.media/sashakoshka/tomo/elements"
-import "git.tebibyte.media/sashakoshka/tomo/elements/file"
-import "git.tebibyte.media/sashakoshka/tomo/elements/containers"
 import _ "git.tebibyte.media/sashakoshka/tomo/backends/all"
 
 func main () {
@@ -16,11 +13,11 @@ func main () {
 func run () {
 	window, _ := tomo.NewWindow(tomo.Bounds(0, 0, 384, 384))
 	window.SetTitle("File browser")
-	container := containers.NewContainer(layouts.Vertical { true, true })
+	container := elements.NewVBox(elements.SpaceBoth)
 	window.Adopt(container)
 	homeDir, _ := os.UserHomeDir()
 
-	controlBar := containers.NewContainer(layouts.Horizontal { })
+	controlBar := elements.NewHBox(elements.SpaceNone)
 	backButton := elements.NewButton("Back")
 	backButton.SetIcon(tomo.IconBackward)
 	backButton.ShowText(false)
@@ -35,12 +32,11 @@ func run () {
 	upwardButton.ShowText(false)
 	locationInput := elements.NewTextBox("Location", "")
 	
-	statusBar := containers.NewContainer(layouts.Horizontal { true, false })
+	statusBar := elements.NewHBox(elements.SpaceMargin)
-	directory, _ := fileElements.NewFile(homeDir, nil)
+	directory, _ := elements.NewFile(homeDir, nil)
-	baseName := elements.NewLabel(filepath.Base(homeDir), false)
+	baseName := elements.NewLabel(filepath.Base(homeDir))
 	
-	scrollContainer  := containers.NewScrollContainer(false, true)
+	directoryView, _ := elements.NewDirectory(homeDir, nil)
-	directoryView, _ := fileElements.NewDirectory(homeDir, nil)
 	updateStatus := func () {
 		filePath, _ := directoryView.Location()
 		directory.SetLocation(filePath, nil)
@@ -72,19 +68,15 @@ func run () {
 		filePath, _ := directoryView.Location()
 		choose(filepath.Dir(filePath))
 	})
+
+	controlBar.Adopt(backButton, forwardButton, refreshButton, upwardButton)
+	controlBar.AdoptExpand(locationInput)
+	statusBar.Adopt(directory, baseName)
 	
-	controlBar.Adopt(backButton,    false)
+	container.Adopt(controlBar)
-	controlBar.Adopt(forwardButton, false)
+	container.AdoptExpand (
-	controlBar.Adopt(refreshButton, false)
+		elements.NewScroll(elements.ScrollVertical, directoryView))
-	controlBar.Adopt(upwardButton,  false)
+	container.Adopt(statusBar)
-	controlBar.Adopt(locationInput, true)
-	scrollContainer.Adopt(directoryView)
-	statusBar.Adopt(directory, false)
-	statusBar.Adopt(baseName, false)
-	
-	container.Adopt(controlBar,      false)
-	container.Adopt(scrollContainer, true)
-	container.Adopt(statusBar,       false)
 
 	window.OnClose(tomo.Stop)
 	window.Show()

theme.go

@@ -197,8 +197,8 @@ const (
 
 	IconBackward
 	IconForward
-	IconRefresh
 	IconUpward
+	IconRefresh
 
 	IconYes
 	IconNo