add list header

ui/widgets/listheader.go

@@ -0,0 +1,53 @@
+package widgets
+
+import (
+	"supersonic/ui/layouts"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/canvas"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/theme"
+	"fyne.io/fyne/v2/widget"
+)
+
+type ListHeader struct {
+	widget.BaseWidget
+
+	columns       []string
+	columnsLayout *layouts.ColumnsLayout
+
+	columnsContainer *fyne.Container
+	container        *fyne.Container
+}
+
+func NewListHeader(cols []string, layout *layouts.ColumnsLayout) *ListHeader {
+	l := &ListHeader{
+		columns:          cols,
+		columnsLayout:    layout,
+		columnsContainer: container.New(layout),
+	}
+	l.container = container.NewMax(canvas.NewRectangle(theme.BackgroundColor()), l.columnsContainer)
+	l.ExtendBaseWidget(l)
+	l.buildColumns()
+	return l
+}
+
+func (l *ListHeader) SetColumnVisible(colNum int, visible bool) {
+	if visible {
+		l.columnsContainer.Objects[colNum].Show()
+	} else {
+		l.columnsContainer.Objects[colNum].Hide()
+	}
+}
+
+func (l *ListHeader) buildColumns() {
+	for _, c := range l.columns {
+		t := widget.NewRichTextWithText(c)
+		t.Segments[0].(*widget.TextSegment).Style.TextStyle.Bold = true
+		l.columnsContainer.Add(t)
+	}
+}
+
+func (l *ListHeader) CreateRenderer() fyne.WidgetRenderer {
+	return widget.NewSimpleRenderer(l.container)
+}