forked from joejulian/gio
Alexander Arin
89 lines
2.0 KiB
Go
89 lines
2.0 KiB
Go
// SPDX-License-Identifier: Unlicense OR MIT
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// Package material implements the Material design.
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package material
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import (
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"gioui.org/io/pointer"
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"gioui.org/layout"
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"gioui.org/op/paint"
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"gioui.org/text"
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"gioui.org/unit"
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"gioui.org/widget"
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"image"
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"image/color"
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)
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type CheckBox struct {
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Text string
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// Color is the text color.
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Color color.RGBA
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Font text.Font
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IconColor color.RGBA
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Size unit.Value
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shaper *text.Shaper
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checkedStateIcon *Icon
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uncheckedStateIcon *Icon
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}
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func (t *Theme) CheckBox(txt string) CheckBox {
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return CheckBox{
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Text: txt,
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Color: t.Color.Text,
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IconColor: t.Color.Primary,
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Font: text.Font{
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Size: t.TextSize.Scale(14.0 / 16.0),
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},
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Size: unit.Dp(26),
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shaper: t.Shaper,
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checkedStateIcon: t.checkedStateIcon,
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uncheckedStateIcon: t.uncheckedStateIcon,
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}
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}
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func (c CheckBox) Layout(gtx *layout.Context, checkBox *widget.CheckBox) {
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textColor := c.Color
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iconColor := c.IconColor
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var icon *Icon
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if checkBox.Checked(gtx) {
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icon = c.checkedStateIcon
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} else {
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icon = c.uncheckedStateIcon
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}
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hmin := gtx.Constraints.Width.Min
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vmin := gtx.Constraints.Height.Min
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flex := layout.Flex{Alignment: layout.Middle}
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ico := flex.Rigid(gtx, func() {
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layout.Align(layout.Center).Layout(gtx, func() {
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layout.UniformInset(unit.Dp(2)).Layout(gtx, func() {
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size := gtx.Px(c.Size)
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icon.Color = iconColor
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icon.Layout(gtx, unit.Px(float32(size)))
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gtx.Dimensions = layout.Dimensions{
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Size: image.Point{X: size, Y: size},
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}
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})
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})
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})
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lbl := flex.Rigid(gtx, func() {
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gtx.Constraints.Width.Min = hmin
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gtx.Constraints.Height.Min = vmin
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layout.Align(layout.Start).Layout(gtx, func() {
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layout.UniformInset(unit.Dp(2)).Layout(gtx, func() {
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paint.ColorOp{Color: textColor}.Add(gtx.Ops)
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widget.Label{}.Layout(gtx, c.shaper, c.Font, c.Text)
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})
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})
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})
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flex.Layout(gtx, ico, lbl)
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pointer.RectAreaOp{Rect: image.Rectangle{Max: gtx.Dimensions.Size}}.Add(gtx.Ops)
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checkBox.Layout(gtx)
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}
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