forked from joejulian/gio
Elias Naur
6027517949
This change gets rid of the event.Queue interface by replacing it with input.Source values. Source provides the interface to Router necessary to implement interface widgets. Signed-off-by: Elias Naur <mail@eliasnaur.com>
103 lines
2.7 KiB
Go
103 lines
2.7 KiB
Go
// SPDX-License-Identifier: Unlicense OR MIT
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package material
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import (
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"image/color"
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"gioui.org/font"
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"gioui.org/internal/f32color"
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"gioui.org/layout"
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"gioui.org/op"
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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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)
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type EditorStyle struct {
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Font font.Font
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// LineHeight controls the distance between the baselines of lines of text.
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// If zero, a sensible default will be used.
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LineHeight unit.Sp
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// LineHeightScale applies a scaling factor to the LineHeight. If zero, a
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// sensible default will be used.
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LineHeightScale float32
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TextSize unit.Sp
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// Color is the text color.
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Color color.NRGBA
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// Hint contains the text displayed when the editor is empty.
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Hint string
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// HintColor is the color of hint text.
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HintColor color.NRGBA
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// SelectionColor is the color of the background for selected text.
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SelectionColor color.NRGBA
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Editor *widget.Editor
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shaper *text.Shaper
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}
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func Editor(th *Theme, editor *widget.Editor, hint string) EditorStyle {
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return EditorStyle{
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Editor: editor,
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Font: font.Font{
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Typeface: th.Face,
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},
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TextSize: th.TextSize,
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Color: th.Palette.Fg,
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shaper: th.Shaper,
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Hint: hint,
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HintColor: f32color.MulAlpha(th.Palette.Fg, 0xbb),
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SelectionColor: f32color.MulAlpha(th.Palette.ContrastBg, 0x60),
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}
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}
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func (e EditorStyle) Layout(gtx layout.Context) layout.Dimensions {
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// Choose colors.
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textColorMacro := op.Record(gtx.Ops)
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paint.ColorOp{Color: e.Color}.Add(gtx.Ops)
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textColor := textColorMacro.Stop()
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hintColorMacro := op.Record(gtx.Ops)
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paint.ColorOp{Color: e.HintColor}.Add(gtx.Ops)
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hintColor := hintColorMacro.Stop()
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selectionColorMacro := op.Record(gtx.Ops)
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paint.ColorOp{Color: blendDisabledColor(!gtx.Enabled(), e.SelectionColor)}.Add(gtx.Ops)
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selectionColor := selectionColorMacro.Stop()
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var maxlines int
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if e.Editor.SingleLine {
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maxlines = 1
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}
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macro := op.Record(gtx.Ops)
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tl := widget.Label{
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Alignment: e.Editor.Alignment,
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MaxLines: maxlines,
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LineHeight: e.LineHeight,
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LineHeightScale: e.LineHeightScale,
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}
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dims := tl.Layout(gtx, e.shaper, e.Font, e.TextSize, e.Hint, hintColor)
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call := macro.Stop()
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if w := dims.Size.X; gtx.Constraints.Min.X < w {
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gtx.Constraints.Min.X = w
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}
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if h := dims.Size.Y; gtx.Constraints.Min.Y < h {
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gtx.Constraints.Min.Y = h
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}
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e.Editor.LineHeight = e.LineHeight
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e.Editor.LineHeightScale = e.LineHeightScale
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dims = e.Editor.Layout(gtx, e.shaper, e.Font, e.TextSize, textColor, selectionColor)
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if e.Editor.Len() == 0 {
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call.Add(gtx.Ops)
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}
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return dims
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}
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func blendDisabledColor(disabled bool, c color.NRGBA) color.NRGBA {
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if disabled {
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return f32color.Disabled(c)
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}
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return c
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}
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