beginning work toward adding artists and genres pages

ui/widgets/artistgenreplaylist.go

@@ -0,0 +1,62 @@
+package widgets
+
+import (
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/widget"
+)
+
+type ArtistGenrePlaylistItemModel struct {
+	ID         string
+	Name       string
+	AlbumCount int
+	TrackCount int
+	Favorite   bool
+}
+
+type ArtistGenrePlaylist struct {
+	widget.BaseWidget
+
+	Items          []ArtistGenrePlaylistItemModel
+	ShowAlbumCount bool
+	ShowTrackCount bool
+
+	list *widget.List
+}
+
+type ArtistGenrePlaylistRow struct {
+	widget.BaseWidget
+
+	Item ArtistGenrePlaylistItemModel
+
+	container *fyne.Container
+}
+
+func NewArtistGenrePlaylistRow() *ArtistGenrePlaylistRow {
+	a := &ArtistGenrePlaylistRow{}
+	a.ExtendBaseWidget(a)
+	return a
+}
+
+func NewArtistGenrePlaylist(items []ArtistGenrePlaylistItemModel) *ArtistGenrePlaylist {
+	a := &ArtistGenrePlaylist{
+		Items: items,
+	}
+	a.ExtendBaseWidget(a)
+	a.list = widget.NewList(
+		func() int { return len(a.Items) },
+		func() fyne.CanvasObject { return NewArtistGenrePlaylistRow() },
+		func(id widget.ListItemID, item fyne.CanvasObject) {
+			row := item.(*ArtistGenrePlaylistRow)
+			row.Item = a.Items[id]
+		},
+	)
+	return a
+}
+
+func (a *ArtistGenrePlaylist) CreateRenderer() fyne.WidgetRenderer {
+	return widget.NewSimpleRenderer(a.list)
+}
+
+func (a *ArtistGenrePlaylistRow) CreateRenderer() fyne.WidgetRenderer {
+	return widget.NewSimpleRenderer(a.container)
+}