57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
package gallery
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import (
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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// press is a clickable box; w ≤ 0 stretches.
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func press(c *ui.Context, w, h int, label string, draw func(g pixel.Canvas, st pixel.State)) bool {
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k := pixel.K(c)
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shell, base, st := pixel.Shell(c, func() *ui.Element { return ui.ButtonBase(c).Label(label) })
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if w > 0 {
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shell.Width(k.D(w))
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}
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shell.Height(k.D(h)).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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draw(g, st)
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if st.Focus {
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g.FocusMark(0, 0, g.W, g.H)
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}
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})
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return base.Clicked()
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}
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// button is a raised pixel button with a centered label.
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func button(c *ui.Context, label string) bool {
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return press(c, pixel.Measure(label)+12, 16, label, func(g pixel.Canvas, st pixel.State) {
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y := 0
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if st.Press {
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y = 1
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}
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g.Frame(0, y, g.W, g.H-1, pixel.Raised, pixel.Face)
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g.Text((g.W-pixel.Measure(label))/2, y, label, pixel.Ink, 1)
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})
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}
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// panel is a framed box with padding for children.
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func panel(c *ui.Context, style pixel.FrameStyle, fill pixel.Slot, pad int) *ui.Element {
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k := pixel.K(c)
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return ui.Column(c).Padding(k.D(pad)).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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g.Frame(0, 0, g.W, g.H, style, fill)
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})
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}
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// shadowText draws text with a one-dot shadow.
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func shadowText(g pixel.Canvas, x, y int, s string, ink pixel.Slot, scale int) {
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g.Text(x+scale, y+scale, s, pixel.Shade, scale)
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g.Text(x, y, s, ink, scale)
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}
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// label is non-wrapping pixel text.
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func label(c *ui.Context, s string, ink pixel.Slot) *ui.Element {
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return pixel.Text(c, s, pixel.TextOptions{Slot: ink})
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}
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