widget

package
v1.1.3 Latest Latest
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 Go to latest Published: May 3, 2026 License: MIT, Unlicense Imports: 34 Imported by: 3

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Constants

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Variables

This section is empty.

Functions

This section is empty.

Types

type Bool 

type Bool struct {
	Value bool
	// contains filtered or unexported fields
}

func (*Bool) History 

func (b *Bool) History() []Press

func (*Bool) Hovered 

func (b *Bool) Hovered() bool

func (*Bool) Layout 

func (b *Bool) Layout(gtx layout.Context, w layout.Widget) layout.Dimensions

func (*Bool) Pressed 

func (b *Bool) Pressed() bool

func (*Bool) Update 

func (b *Bool) Update(gtx layout.Context) bool

type Border 

type Border struct {
	Color        color.NRGBA
	CornerRadius unit.Dp
	Width        unit.Dp
}

func (Border) Layout 

func (b Border) Layout(gtx layout.Context, w layout.Widget) layout.Dimensions

type ChangeEvent 

type ChangeEvent struct{}

type Click 

type Click struct {
	Modifiers key.Modifiers
	NumClicks int
}

type Clickable 

type Clickable struct {
	// contains filtered or unexported fields
}
Example (Passthrough) 
package main

import (
	"fmt"
	"image"

	"github.com/nanorele/gio/f32"
	"github.com/nanorele/gio/io/input"
	"github.com/nanorele/gio/io/pointer"
	"github.com/nanorele/gio/layout"
	"github.com/nanorele/gio/op"
	"github.com/nanorele/gio/widget"
)

func main() {

	var button1, button2 widget.Clickable
	var r input.Router
	gtx := layout.Context{
		Ops:         new(op.Ops),
		Constraints: layout.Exact(image.Pt(100, 100)),
		Source:      r.Source(),
	}

	widget := func() {
		content := func(gtx layout.Context) layout.Dimensions { return layout.Dimensions{Size: gtx.Constraints.Min} }
		button1.Layout(gtx, content)

		defer pointer.PassOp{}.Push(gtx.Ops).Pop()
		button2.Layout(gtx, content)
	}

	widget()
	r.Frame(gtx.Ops)

	r.Queue(
		pointer.Event{
			Source:   pointer.Mouse,
			Buttons:  pointer.ButtonPrimary,
			Kind:     pointer.Press,
			Position: f32.Pt(50, 50),
		},
		pointer.Event{
			Source:   pointer.Mouse,
			Buttons:  pointer.ButtonPrimary,
			Kind:     pointer.Release,
			Position: f32.Pt(50, 50),
		},
	)

	if button1.Clicked(gtx) {
		fmt.Println("button1 clicked!")
	}
	if button2.Clicked(gtx) {
		fmt.Println("button2 clicked!")
	}

}

func (*Clickable) Click 

func (b *Clickable) Click()

func (*Clickable) Clicked 

func (b *Clickable) Clicked(gtx layout.Context) bool

func (*Clickable) History 

func (b *Clickable) History() []Press

func (*Clickable) Hovered 

func (b *Clickable) Hovered() bool

func (*Clickable) Layout 

func (b *Clickable) Layout(gtx layout.Context, w layout.Widget) layout.Dimensions

func (*Clickable) Pressed 

func (b *Clickable) Pressed() bool

func (*Clickable) Update 

func (b *Clickable) Update(gtx layout.Context) (Click, bool)

type Decorations 

type Decorations struct {
	Maximized bool
	// contains filtered or unexported fields
}

func (*Decorations) Clickable 

func (d *Decorations) Clickable(action system.Action) *Clickable

func (*Decorations) LayoutMove 

func (d *Decorations) LayoutMove(gtx layout.Context, w layout.Widget) layout.Dimensions

func (*Decorations) Update 

func (d *Decorations) Update(gtx layout.Context) system.Action

type Draggable 

type Draggable struct {
	Type string
	// contains filtered or unexported fields
}

func (*Draggable) Dragging 

func (d *Draggable) Dragging() bool

func (*Draggable) Layout 

func (d *Draggable) Layout(gtx layout.Context, w, drag layout.Widget) layout.Dimensions
Example 
package main

import (
	"fmt"
	"image"
	"io"
	"strings"

	"github.com/nanorele/gio/f32"
	"github.com/nanorele/gio/io/event"
	"github.com/nanorele/gio/io/input"
	"github.com/nanorele/gio/io/pointer"
	"github.com/nanorele/gio/io/transfer"
	"github.com/nanorele/gio/layout"
	"github.com/nanorele/gio/op"
	"github.com/nanorele/gio/op/clip"
	"github.com/nanorele/gio/widget"
)

func main() {
	var r input.Router
	gtx := layout.Context{
		Ops:         new(op.Ops),
		Constraints: layout.Exact(image.Pt(100, 100)),
		Source:      r.Source(),
	}

	const mime = "MyMime"
	drag := &widget.Draggable{Type: mime}
	var drop int

	widget := func() {

		w := func(gtx layout.Context) layout.Dimensions {
			sz := image.Pt(10, 10)
			return layout.Dimensions{Size: sz}
		}
		drag.Layout(gtx, w, w)

		if m, ok := drag.Update(gtx); ok {
			drag.Offer(gtx, m, io.NopCloser(strings.NewReader("hello world")))
		}

		ds := clip.Rect{
			Min: image.Pt(20, 20),
			Max: image.Pt(40, 40),
		}.Push(gtx.Ops)
		event.Op(gtx.Ops, &drop)
		ds.Pop()

		for {
			ev, ok := gtx.Event(transfer.TargetFilter{Target: &drop, Type: mime})
			if !ok {
				break
			}
			switch e := ev.(type) {
			case transfer.DataEvent:
				data := e.Open()
				defer data.Close()
				content, _ := io.ReadAll(data)
				fmt.Println(string(content))
			}
		}
	}

	widget()
	r.Frame(gtx.Ops)

	r.Queue(
		pointer.Event{
			Kind:     pointer.Press,
			Position: f32.Pt(5, 5),
		},
		pointer.Event{
			Kind:     pointer.Move,
			Position: f32.Pt(5, 5),
		},
		pointer.Event{
			Kind:     pointer.Release,
			Position: f32.Pt(30, 30),
		},
	)

	widget()
	r.Frame(gtx.Ops)

	widget()

}

func (*Draggable) Offer 

func (d *Draggable) Offer(gtx layout.Context, mime string, data io.ReadCloser)

func (*Draggable) Pos 

func (d *Draggable) Pos() f32.Point

func (*Draggable) Update 

func (d *Draggable) Update(gtx layout.Context) (mime string, requested bool)

type Editor 

type Editor struct {
	Alignment text.Alignment

	LineHeight unit.Sp

	LineHeightScale float32

	SingleLine bool

	ReadOnly bool

	Submit bool

	Mask rune

	InputHint key.InputHint

	MaxLen int

	Filter string

	WrapPolicy text.WrapPolicy
	// contains filtered or unexported fields
}

func (*Editor) CaretCoords 

func (e *Editor) CaretCoords() f32.Point

func (*Editor) CaretPos 

func (e *Editor) CaretPos() (line, col int)

func (*Editor) ClearSelection 

func (e *Editor) ClearSelection()

func (*Editor) Delete 

func (e *Editor) Delete(graphemeClusters int) (deletedRunes int)

func (*Editor) GetScrollBounds 

func (e *Editor) GetScrollBounds() image.Rectangle

func (*Editor) GetScrollX 

func (e *Editor) GetScrollX() int

func (*Editor) GetScrollY 

func (e *Editor) GetScrollY() int

func (*Editor) Insert 

func (e *Editor) Insert(s string) (insertedRunes int)

func (*Editor) Layout 

func (e *Editor) Layout(gtx layout.Context, lt *text.Shaper, font font.Font, size unit.Sp, textMaterial, selectMaterial op.CallOp) layout.Dimensions

func (*Editor) Len 

func (e *Editor) Len() int

func (*Editor) MoveCaret 

func (e *Editor) MoveCaret(startDelta, endDelta int)

func (*Editor) Read 

func (e *Editor) Read(p []byte) (int, error)

func (*Editor) Regions 

func (e *Editor) Regions(start, end int, regions []Region) []Region

func (*Editor) Seek 

func (e *Editor) Seek(offset int64, whence int) (int64, error)

func (*Editor) SelectedText 

func (e *Editor) SelectedText() string

func (*Editor) Selection 

func (e *Editor) Selection() (start, end int)

func (*Editor) SelectionLen 

func (e *Editor) SelectionLen() int

func (*Editor) SetCaret 

func (e *Editor) SetCaret(start, end int)

func (*Editor) SetScrollCaret added in v1.0.11 

func (e *Editor) SetScrollCaret(b bool)

func (*Editor) SetScrollY 

func (e *Editor) SetScrollY(y int)

func (*Editor) SetText 

func (e *Editor) SetText(s string)

func (*Editor) Text 

func (e *Editor) Text() string

func (*Editor) Update 

func (e *Editor) Update(gtx layout.Context) (EditorEvent, bool)

func (*Editor) WriteTo 

func (e *Editor) WriteTo(w io.Writer) (int64, error)

type EditorEvent 

type EditorEvent interface {
	// contains filtered or unexported methods
}

type Enum 

type Enum struct {
	Value string
	// contains filtered or unexported fields
}

func (*Enum) Focused 

func (e *Enum) Focused() (string, bool)

func (*Enum) Hovered 

func (e *Enum) Hovered() (string, bool)

func (*Enum) Layout 

func (e *Enum) Layout(gtx layout.Context, k string, content layout.Widget) layout.Dimensions

func (*Enum) Update 

func (e *Enum) Update(gtx layout.Context) bool

type Fit 

type Fit uint8
const (
	Unscaled Fit = iota

	Contain

	Cover

	ScaleDown

	Fill
)

type Float 

type Float struct {
	Value float32
	// contains filtered or unexported fields
}

func (*Float) Dragging 

func (f *Float) Dragging() bool

func (*Float) Layout 

func (f *Float) Layout(gtx layout.Context, axis layout.Axis, pointerMargin unit.Dp) layout.Dimensions

func (*Float) Update 

func (f *Float) Update(gtx layout.Context) bool

type Icon 

type Icon struct {
	// contains filtered or unexported fields
}

func NewIcon 

func NewIcon(data []byte) (*Icon, error)

func (*Icon) Layout 

func (ic *Icon) Layout(gtx layout.Context, color color.NRGBA) layout.Dimensions

type Image 

type Image struct {
	Src paint.ImageOp

	Fit Fit

	Position layout.Direction

	Scale float32
}

func (Image) Layout 

func (im Image) Layout(gtx layout.Context) layout.Dimensions

type Label 

type Label struct {
	Alignment text.Alignment

	MaxLines int

	Truncator string

	WrapPolicy text.WrapPolicy

	LineHeight unit.Sp

	LineHeightScale float32
}

func (Label) Layout 

func (l Label) Layout(gtx layout.Context, lt *text.Shaper, font font.Font, size unit.Sp, txt string, textMaterial op.CallOp) layout.Dimensions

func (Label) LayoutDetailed 

func (l Label) LayoutDetailed(gtx layout.Context, lt *text.Shaper, font font.Font, size unit.Sp, txt string, textMaterial op.CallOp) (layout.Dimensions, TextInfo)

type List 

type List struct {
	Scrollbar
	layout.List
}

type Press 

type Press struct {
	Position image.Point

	Start time.Time

	End time.Time

	Cancelled bool
}

type Region 

type Region struct {
	Bounds image.Rectangle

	Baseline int
}

type Scrollbar 

type Scrollbar struct {
	// contains filtered or unexported fields
}

func (*Scrollbar) AddDrag 

func (s *Scrollbar) AddDrag(ops *op.Ops)

func (*Scrollbar) AddIndicator 

func (s *Scrollbar) AddIndicator(ops *op.Ops)

func (*Scrollbar) AddTrack 

func (s *Scrollbar) AddTrack(ops *op.Ops)

func (*Scrollbar) Dragging 

func (s *Scrollbar) Dragging() bool

func (*Scrollbar) IndicatorHovered 

func (s *Scrollbar) IndicatorHovered() bool

func (*Scrollbar) ScrollDistance 

func (s *Scrollbar) ScrollDistance() float32

func (*Scrollbar) TrackHovered 

func (s *Scrollbar) TrackHovered() bool

func (*Scrollbar) Update 

func (s *Scrollbar) Update(gtx layout.Context, axis layout.Axis, viewportStart, viewportEnd float32)

type SelectEvent 

type SelectEvent struct{}

type Selectable 

type Selectable struct {
	Alignment text.Alignment

	MaxLines int

	Truncator string

	WrapPolicy text.WrapPolicy

	LineHeight unit.Sp

	LineHeightScale float32
	// contains filtered or unexported fields
}

func (*Selectable) ClearSelection 

func (l *Selectable) ClearSelection()

func (*Selectable) Focused 

func (l *Selectable) Focused() bool

func (*Selectable) Layout 

func (l *Selectable) Layout(gtx layout.Context, lt *text.Shaper, font font.Font, size unit.Sp, textMaterial, selectionMaterial op.CallOp) layout.Dimensions

func (*Selectable) Regions 

func (l *Selectable) Regions(start, end int, regions []Region) []Region

func (*Selectable) SelectedText 

func (l *Selectable) SelectedText() string

func (*Selectable) Selection 

func (l *Selectable) Selection() (start, end int)

func (*Selectable) SelectionLen 

func (l *Selectable) SelectionLen() int

func (*Selectable) SetCaret 

func (l *Selectable) SetCaret(start, end int)

func (*Selectable) SetText 

func (l *Selectable) SetText(s string)

func (*Selectable) Text 

func (l *Selectable) Text() string

func (*Selectable) Truncated 

func (l *Selectable) Truncated() bool

func (*Selectable) Update 

func (l *Selectable) Update(gtx layout.Context) bool

type SubmitEvent 

type SubmitEvent struct {
	Text string
}

type TextInfo 

type TextInfo struct {
	Truncated int
}

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