80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
package basic
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import "image"
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import "git.tebibyte.media/sashakoshka/tomo"
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import "git.tebibyte.media/sashakoshka/tomo/theme"
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import "git.tebibyte.media/sashakoshka/tomo/artist"
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var listEntryCase = theme.C("basic", "listEntry")
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// ListEntry is an item that can be added to a list.
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type ListEntry struct {
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drawer artist.TextDrawer
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bounds image.Rectangle
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textPoint image.Point
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text string
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forcedMinimumWidth int
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onSelect func ()
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}
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func NewListEntry (text string, onSelect func ()) (entry ListEntry) {
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entry = ListEntry {
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text: text,
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onSelect: onSelect,
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}
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entry.drawer.SetText([]rune(text))
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entry.drawer.SetFace(theme.FontFaceRegular())
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entry.updateBounds()
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return
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}
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func (entry *ListEntry) Collapse (width int) {
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if entry.forcedMinimumWidth == width { return }
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entry.forcedMinimumWidth = width
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entry.updateBounds()
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}
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func (entry *ListEntry) updateBounds () {
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entry.bounds = image.Rectangle { }
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entry.bounds.Max.Y = entry.drawer.LineHeight().Round()
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if entry.forcedMinimumWidth > 0 {
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entry.bounds.Max.X = entry.forcedMinimumWidth
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} else {
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entry.bounds.Max.X = entry.drawer.LayoutBounds().Dx()
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}
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_, inset := theme.ItemPattern(theme.PatternState {
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})
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entry.bounds.Max.Y += inset[0] + inset[2]
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entry.textPoint =
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image.Pt(inset[3], inset[0]).
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Sub(entry.drawer.LayoutBounds().Min)
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}
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func (entry *ListEntry) Draw (
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destination tomo.Canvas,
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offset image.Point,
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selected bool,
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) (
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updatedRegion image.Rectangle,
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) {
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foreground, _ := theme.ForegroundPattern (theme.PatternState {
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Case: listEntryCase,
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})
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return entry.drawer.Draw (
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destination,
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foreground,
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offset.Add(entry.textPoint))
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}
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func (entry *ListEntry) RunSelect () {
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if entry.onSelect != nil {
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entry.onSelect()
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}
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}
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func (entry *ListEntry) Bounds () (bounds image.Rectangle) {
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return entry.bounds
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}
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