Checkboxes!
This commit is contained in:
Sasha Koshka
parent
37458f4fde
commit
5d64788b68
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@ -0,0 +1,211 @@
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package basic
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import "image"
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import "git.tebibyte.media/sashakoshka/tomo"
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import "git.tebibyte.media/sashakoshka/tomo/theme"
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import "git.tebibyte.media/sashakoshka/tomo/artist"
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import "git.tebibyte.media/sashakoshka/tomo/elements/core"
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// Checkbox is a toggle-able checkbox with a label.
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type Checkbox struct {
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*core.Core
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core core.CoreControl
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pressed bool
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checked bool
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enabled bool
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selected bool
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onClick func ()
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text string
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drawer artist.TextDrawer
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}
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// NewCheckbox creates a new cbeckbox with the specified label text.
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func NewCheckbox (text string, checked bool) (element *Checkbox) {
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element = &Checkbox { enabled: true }
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element.Core, element.core = core.NewCore(element)
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element.drawer.SetFace(theme.FontFaceRegular())
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element.SetText(text)
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return
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}
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// Resize changes this element's size.
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func (element *Checkbox) Resize (width, height int) {
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element.core.AllocateCanvas(width, height)
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element.draw()
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}
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func (element *Checkbox) HandleMouseDown (x, y int, button tomo.Button) {
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element.Select()
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element.pressed = true
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if element.core.HasImage() {
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element.draw()
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element.core.PushAll()
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}
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}
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func (element *Checkbox) HandleMouseUp (x, y int, button tomo.Button) {
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if button != tomo.ButtonLeft { return }
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element.pressed = false
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within := image.Point { x, y }.
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In(element.Bounds())
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if within {
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element.checked = !element.checked
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}
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if element.core.HasImage() {
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element.draw()
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element.core.PushAll()
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}
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if within && element.onClick != nil {
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element.onClick()
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}
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}
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func (element *Checkbox) HandleMouseMove (x, y int) { }
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func (element *Checkbox) HandleScroll (x, y int, deltaX, deltaY float64) { }
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func (element *Checkbox) HandleKeyDown (
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key tomo.Key,
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modifiers tomo.Modifiers,
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repeated bool,
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) {
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if key == tomo.KeyEnter {
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element.pressed = true
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if element.core.HasImage() {
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element.draw()
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element.core.PushAll()
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}
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}
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}
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func (element *Checkbox) HandleKeyUp (key tomo.Key, modifiers tomo.Modifiers) {
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if key == tomo.KeyEnter && element.pressed {
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element.pressed = false
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element.checked = !element.checked
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if element.core.HasImage() {
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element.draw()
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element.core.PushAll()
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}
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if element.onClick != nil {
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element.onClick()
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}
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}
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}
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// Selected returns whether or not this element is selected.
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func (element *Checkbox) Selected () (selected bool) {
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return element.selected
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}
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// Select requests that this element be selected.
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func (element *Checkbox) Select () {
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element.core.RequestSelection()
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}
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func (element *Checkbox) HandleSelection (
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direction tomo.SelectionDirection,
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) (
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accepted bool,
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) {
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direction = direction.Canon()
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if !element.enabled { return false }
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if element.selected && direction != tomo.SelectionDirectionNeutral {
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return false
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}
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element.selected = true
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if element.core.HasImage() {
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element.draw()
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element.core.PushAll()
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}
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return true
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}
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func (element *Checkbox) HandleDeselection () {
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element.selected = false
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if element.core.HasImage() {
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element.draw()
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element.core.PushAll()
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}
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}
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// OnClick sets the function to be called when the checkbox is toggled.
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func (element *Checkbox) OnClick (callback func ()) {
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element.onClick = callback
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}
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// Value reports whether or not the checkbox is currently checked.
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func (element *Checkbox) Value () (checked bool) {
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return element.checked
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}
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// SetEnabled sets whether this checkbox can be toggled or not.
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func (element *Checkbox) SetEnabled (enabled bool) {
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if element.enabled == enabled { return }
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element.enabled = enabled
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if element.core.HasImage () {
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element.draw()
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element.core.PushAll()
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}
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}
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// SetText sets the checkbox's label text.
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func (element *Checkbox) SetText (text string) {
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if element.text == text { return }
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element.text = text
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element.drawer.SetText(text)
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textBounds := element.drawer.LayoutBounds()
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element.core.SetMinimumSize (
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textBounds.Dy() + theme.Padding() + textBounds.Dx(),
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textBounds.Dy())
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if element.core.HasImage () {
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element.draw()
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element.core.PushAll()
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}
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}
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func (element *Checkbox) draw () {
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bounds := element.core.Bounds()
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boxBounds := image.Rect(0, 0, bounds.Dy(), bounds.Dy())
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artist.FillRectangle ( element.core, theme.BackgroundPattern(), bounds)
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artist.FillRectangle (
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element.core,
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theme.ButtonPattern (
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element.enabled,
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element.Selected(),
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element.pressed),
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boxBounds)
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innerBounds := bounds
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innerBounds.Min.X += theme.Padding()
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innerBounds.Min.Y += theme.Padding()
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innerBounds.Max.X -= theme.Padding()
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innerBounds.Max.Y -= theme.Padding()
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textBounds := element.drawer.LayoutBounds()
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offset := image.Point {
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X: bounds.Dy() + theme.Padding(),
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}
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offset.Y -= textBounds.Min.Y
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offset.X -= textBounds.Min.X
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foreground := theme.ForegroundPattern(element.enabled)
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element.drawer.Draw(element.core, foreground, offset)
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if element.checked {
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checkBounds := boxBounds.Inset(4)
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if element.pressed {
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checkBounds = checkBounds.Add(theme.SinkOffsetVector())
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}
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artist.FillRectangle (
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element.core,
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theme.ForegroundPattern(element.enabled),
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checkBounds)
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}
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}
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@ -0,0 +1,34 @@
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package main
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import "git.tebibyte.media/sashakoshka/tomo"
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import "git.tebibyte.media/sashakoshka/tomo/layouts"
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import "git.tebibyte.media/sashakoshka/tomo/elements/basic"
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import _ "git.tebibyte.media/sashakoshka/tomo/backends/x"
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func main () {
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tomo.Run(run)
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}
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func run () {
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window, _ := tomo.NewWindow(2, 2)
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window.SetTitle("Checkboxes")
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container := basic.NewContainer(layouts.Vertical { true, true })
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window.Adopt(container)
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container.Adopt(basic.NewCheckbox("Oh god", false), false)
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container.Adopt(basic.NewCheckbox("Can you hear them", true), false)
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container.Adopt(basic.NewCheckbox("They are in the walls", false), false)
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container.Adopt(basic.NewCheckbox("They are coming for us", false), false)
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disabledCheckbox := basic.NewCheckbox("We are but their helpless prey", false)
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disabledCheckbox.SetEnabled(false)
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container.Adopt(disabledCheckbox, false)
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container.Adopt(basic.NewCheckbox("Enable vsync", true), false)
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button := basic.NewButton("What")
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button.OnClick(tomo.Stop)
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container.Adopt(button, false)
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button.Select()
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window.OnClose(tomo.Stop)
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window.Show()
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}
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@ -0,0 +1,54 @@
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package theme
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import "git.tebibyte.media/sashakoshka/tomo/artist"
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var buttonPattern = artist.NewMultiBorder (
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artist.Border { Weight: 1, Stroke: strokePattern },
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artist.Border {
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Weight: 1,
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Stroke: artist.Chiseled {
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Highlight: artist.NewUniform(hex(0xCCD5D2FF)),
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Shadow: artist.NewUniform(hex(0x4B5B59FF)),
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},
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},
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artist.Border { Stroke: artist.NewUniform(hex(0x8D9894FF)) })
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var selectedButtonPattern = artist.NewMultiBorder (
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artist.Border { Weight: 1, Stroke: strokePattern },
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artist.Border {
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Weight: 1,
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Stroke: artist.Chiseled {
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Highlight: artist.NewUniform(hex(0xCCD5D2FF)),
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Shadow: artist.NewUniform(hex(0x4B5B59FF)),
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},
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},
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artist.Border { Weight: 1, Stroke: accentPattern },
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artist.Border { Stroke: artist.NewUniform(hex(0x8D9894FF)) })
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var pressedButtonPattern = artist.NewMultiBorder (
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artist.Border { Weight: 1, Stroke: strokePattern },
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artist.Border {
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Weight: 1,
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Stroke: artist.Chiseled {
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Highlight: artist.NewUniform(hex(0x4B5B59FF)),
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Shadow: artist.NewUniform(hex(0x8D9894FF)),
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},
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},
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artist.Border { Stroke: artist.NewUniform(hex(0x8D9894FF)) })
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var disabledButtonPattern = artist.NewMultiBorder (
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artist.Border { Weight: 1, Stroke: weakForegroundPattern },
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artist.Border { Stroke: backgroundPattern })
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func ButtonPattern (enabled, selected, pressed bool) (artist.Pattern) {
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if enabled {
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if pressed {
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return pressedButtonPattern
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} else {
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if selected {
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return selectedButtonPattern
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} else {
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return buttonPattern
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}
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}
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} else {
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return disabledButtonPattern
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}
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}
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@ -23,41 +23,6 @@ var foregroundPattern = artist.NewUniform(color.Gray16 { 0x0000 })
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var weakForegroundPattern = artist.NewUniform(color.Gray16 { 0x4444 })
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var strokePattern = artist.NewUniform(color.Gray16 { 0x0000 })
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var buttonPattern = artist.NewMultiBorder (
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artist.Border { Weight: 1, Stroke: strokePattern },
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artist.Border {
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Weight: 1,
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Stroke: artist.Chiseled {
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Highlight: artist.NewUniform(hex(0xCCD5D2FF)),
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Shadow: artist.NewUniform(hex(0x4B5B59FF)),
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},
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},
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artist.Border { Stroke: artist.NewUniform(hex(0x8D9894FF)) })
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var selectedButtonPattern = artist.NewMultiBorder (
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artist.Border { Weight: 1, Stroke: strokePattern },
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artist.Border {
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Weight: 1,
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Stroke: artist.Chiseled {
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Highlight: artist.NewUniform(hex(0xCCD5D2FF)),
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Shadow: artist.NewUniform(hex(0x4B5B59FF)),
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},
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},
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artist.Border { Weight: 1, Stroke: accentPattern },
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artist.Border { Stroke: artist.NewUniform(hex(0x8D9894FF)) })
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var pressedButtonPattern = artist.NewMultiBorder (
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artist.Border { Weight: 1, Stroke: strokePattern },
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artist.Border {
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Weight: 1,
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Stroke: artist.Chiseled {
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Highlight: artist.NewUniform(hex(0x4B5B59FF)),
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Shadow: artist.NewUniform(hex(0x8D9894FF)),
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},
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},
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artist.Border { Stroke: artist.NewUniform(hex(0x8D9894FF)) })
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var disabledButtonPattern = artist.NewMultiBorder (
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artist.Border { Weight: 1, Stroke: weakForegroundPattern },
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artist.Border { Stroke: backgroundPattern })
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var sunkenPattern = artist.NewMultiBorder (
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artist.Border { Weight: 1, Stroke: strokePattern },
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artist.Border {
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@ -79,21 +44,6 @@ func ForegroundPattern (enabled bool) (artist.Pattern) {
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return weakForegroundPattern
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}
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}
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func ButtonPattern (enabled, selected, pressed bool) (artist.Pattern) {
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if enabled {
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if pressed {
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return pressedButtonPattern
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} else {
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if selected {
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return selectedButtonPattern
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} else {
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return buttonPattern
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}
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}
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} else {
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return disabledButtonPattern
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}
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}
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// TODO: load fonts from an actual source instead of using defaultfont
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