Initial commit

2025-12-14 22:18:17 +08:00 · 2022-06-21 13:02:22 -07:00
commit 9f75839ebc
161 changed files with 18766 additions and 0 deletions
--- a/app/fyne_demo/tutorials/collection.go
+++ b/app/fyne_demo/tutorials/collection.go
@@ -0,0 +1,119 @@
+package tutorials
+
+import (
+	"fmt"
+	"strconv"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/theme"
+	"fyne.io/fyne/v2/widget"
+)
+
+// collectionScreen loads a tab panel for collection widgets
+func collectionScreen(_ fyne.Window) fyne.CanvasObject {
+	content := container.NewVBox(
+		widget.NewLabelWithStyle("func Length() int", fyne.TextAlignLeading, fyne.TextStyle{Monospace: true}),
+		widget.NewLabelWithStyle("func CreateItem() fyne.CanvasObject", fyne.TextAlignLeading, fyne.TextStyle{Monospace: true}),
+		widget.NewLabelWithStyle("func UpdateItem(ListItemID, fyne.CanvasObject)", fyne.TextAlignLeading, fyne.TextStyle{Monospace: true}),
+		widget.NewLabelWithStyle("func OnSelected(ListItemID)", fyne.TextAlignLeading, fyne.TextStyle{Monospace: true}),
+		widget.NewLabelWithStyle("func OnUnselected(ListItemID)", fyne.TextAlignLeading, fyne.TextStyle{Monospace: true}))
+	return container.NewCenter(content)
+}
+
+func makeListTab(_ fyne.Window) fyne.CanvasObject {
+	data := make([]string, 1000)
+	for i := range data {
+		data[i] = "Test Item " + strconv.Itoa(i)
+	}
+
+	icon := widget.NewIcon(nil)
+	label := widget.NewLabel("Select An Item From The List")
+	hbox := container.NewHBox(icon, label)
+
+	list := widget.NewList(
+		func() int {
+			return len(data)
+		},
+		func() fyne.CanvasObject {
+			return container.NewHBox(widget.NewIcon(theme.DocumentIcon()), widget.NewLabel("Template Object"))
+		},
+		func(id widget.ListItemID, item fyne.CanvasObject) {
+			item.(*fyne.Container).Objects[1].(*widget.Label).SetText(data[id])
+		},
+	)
+	list.OnSelected = func(id widget.ListItemID) {
+		label.SetText(data[id])
+		icon.SetResource(theme.DocumentIcon())
+	}
+	list.OnUnselected = func(id widget.ListItemID) {
+		label.SetText("Select An Item From The List")
+		icon.SetResource(nil)
+	}
+	list.Select(125)
+
+	return container.NewHSplit(list, container.NewCenter(hbox))
+}
+
+func makeTableTab(_ fyne.Window) fyne.CanvasObject {
+	t := widget.NewTable(
+		func() (int, int) { return 500, 150 },
+		func() fyne.CanvasObject {
+			return widget.NewLabel("Cell 000, 000")
+		},
+		func(id widget.TableCellID, cell fyne.CanvasObject) {
+			label := cell.(*widget.Label)
+			switch id.Col {
+			case 0:
+				label.SetText(fmt.Sprintf("%d", id.Row+1))
+			case 1:
+				label.SetText("A longer cell")
+			default:
+				label.SetText(fmt.Sprintf("Cell %d, %d", id.Row+1, id.Col+1))
+			}
+		})
+	t.SetColumnWidth(0, 34)
+	t.SetColumnWidth(1, 102)
+	return t
+}
+
+func makeTreeTab(_ fyne.Window) fyne.CanvasObject {
+	data := map[string][]string{
+		"":  {"A"},
+		"A": {"B", "D", "H", "J", "L", "O", "P", "S", "V"},
+		"B": {"C"},
+		"C": {"abc"},
+		"D": {"E"},
+		"E": {"F", "G"},
+		"F": {"adef"},
+		"G": {"adeg"},
+		"H": {"I"},
+		"I": {"ahi"},
+		"O": {"ao"},
+		"P": {"Q"},
+		"Q": {"R"},
+		"R": {"apqr"},
+		"S": {"T"},
+		"T": {"U"},
+		"U": {"astu"},
+		"V": {"W"},
+		"W": {"X"},
+		"X": {"Y"},
+		"Y": {"Z"},
+		"Z": {"avwxyz"},
+	}
+
+	tree := widget.NewTreeWithStrings(data)
+	tree.OnSelected = func(id string) {
+		fmt.Println("Tree node selected:", id)
+	}
+	tree.OnUnselected = func(id string) {
+		fmt.Println("Tree node unselected:", id)
+	}
+	tree.OpenBranch("A")
+	tree.OpenBranch("D")
+	tree.OpenBranch("E")
+	tree.OpenBranch("L")
+	tree.OpenBranch("M")
+	return tree
+}