ZacharyZhang-NY
03680980da
Lists, tables, trees, grids, inventories and records in data/. Outline and GridView build on ui.List: ui.Outline strokes its arrows and ui.GridView spaces and tints items. The pixel theme keeps MyGo's row highlights clear so scrolled rows stay on whole dots; off lists take a veil against the wheel. Adds Canvas.Silhouette, SwitchOptions Label and exports Rarity.Slot.
66 lines
2.0 KiB
Go
66 lines
2.0 KiB
Go
package data
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import (
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"fmt"
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"log/slog"
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"slices"
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"strconv"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/icon"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/input"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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type PagerOptions struct {
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// Sizes offered; nil means 10, 20 and 50.
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Sizes []int
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Disabled bool
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}
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type PagerResult struct {
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Element *ui.Element
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Changed bool
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}
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// Pager pages through total items: "1–20 OF 312".
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func Pager(c *ui.Context, text string, total int, page, size *int, o PagerOptions) PagerResult {
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k := pixel.K(c)
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sizes := o.Sizes
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if sizes == nil {
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sizes = []int{10, 20, 50}
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}
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at := slices.Index(sizes, *size)
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if total < 0 || *page < 0 || at < 0 || slices.Min(sizes) < 1 {
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panic(fmt.Sprintf("data: Pager page %d, size %d of %v, total %d", *page, *size, sizes, total))
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}
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old, oldSize := *page, *size
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last := func() int { return max(0, (total-1) / *size) }
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*page = min(*page, last())
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row := ui.Row(c).Gap(k.D(6)).AlignItems(ui.Center).Role(ui.RoleGroup).Label(text)
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row.Children(func() {
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pixel.Text(c, k.Msg("per_page"), pixel.TextOptions{Slot: pixel.Faint})
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labels := make([]string, len(sizes))
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for i, s := range sizes {
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labels[i] = strconv.Itoa(s)
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}
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if input.Segmented(c, k.Msg("per_page"), labels, &at, input.SegmentedOptions{Disabled: o.Disabled}).Changed {
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*size, *page = sizes[at], 0
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}
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from, to := min(*page**size+1, total), min((*page+1)**size, total)
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pixel.Text(c, fmt.Sprintf(k.Msg("range"), from, to, total), pixel.TextOptions{})
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if input.IconButton(c, icon.ChevronLeft, k.Msg("prev"), input.IconButtonOptions{Disabled: o.Disabled || *page == 0}).Clicked {
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*page--
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}
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if input.IconButton(c, icon.ChevronRight, k.Msg("next"), input.IconButtonOptions{Disabled: o.Disabled || *page >= last()}).Clicked {
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*page++
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}
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})
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res := PagerResult{Element: row, Changed: *page != old || *size != oldSize}
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if res.Changed {
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slog.Debug("8bit: pager", "label", text, "page", *page, "size", *size)
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}
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return res
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}
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