cloud-control-panel/table.go

// based off andlabs/ui/examples/table.go

package main

import "fmt"
import "log"
import "github.com/andlabs/ui"

type vmRowData struct {
	hostname	string
	size		int
	IPv6		string
	IPv4		string
	memory		int
	disk		int
}

type modelHandler struct {
	row9Text	string
	yellowRow	int
	checkStates	[15]int
	vms		[15]vmRowData
}

func newModelHandler() *modelHandler {
	m := new(modelHandler)
	m.row9Text = "You can edit this one"
	m.vms[8].hostname = "fire"
	m.vms[9].hostname = "librem15.this.is.a.really.long.string.test"
	m.yellowRow = -1
	log.Println("Called newModelhandler() with m=", m)
	return m
}

func (mh *modelHandler) ColumnTypes(m *ui.TableModel) []ui.TableValue {
	return []ui.TableValue{
		ui.TableString(""),		// column 0 text
		ui.TableString(""),		// column 1 text
		ui.TableString(""),		// column 2 text
		ui.TableColor{},			// row background color
		ui.TableColor{},			// column 1 text color
		ui.TableImage{},		// column 1 image
		ui.TableString(""),		// column 4 button text
		ui.TableInt(0),			// column 3 checkbox state
		ui.TableInt(0),			// column 5 progress
	}
}

func (mh *modelHandler) NumRows(m *ui.TableModel) int {
	return 15
}

var img [2]*ui.Image

func (mh *modelHandler) CellValue(m *ui.TableModel, row, column int) ui.TableValue {
	switch column {
	case 0:
		return ui.TableString(fmt.Sprintf("Row %d", row))
	case 1:
		return ui.TableString("Colors!")
	case 7:
		return ui.TableInt(mh.checkStates[row])
	case 8:
		if row == 0 {
			return ui.TableInt(0)
		}
		if row == 13 {
			return ui.TableInt(100)
		}
		if row == 14 {
			return ui.TableInt(-1)
		}
		return ui.TableInt(50)
	case 5:
		if row < 8 {
			return ui.TableImage{img[0]}
		}
		return ui.TableImage{img[1]}
	case 4:
		if (row % 2) == 1 {
			return ui.TableColor{0.5, 0, 0.75, 1}
		}
		return nil
	case 3:
		if row == mh.yellowRow {
			return ui.TableColor{1, 1, 0, 1}
		}
		if row == 3 {
			return ui.TableColor{1, 0, 0, 1}
		}
		if row == 11 {
			return ui.TableColor{0, 0.5, 1, 0.5}
		}
		return nil
	case 2:
		return ui.TableString(mh.vms[row].hostname)
	case 6:
		return ui.TableString("Make Yellow")
	}
	panic("unreachable")
}

func (mh *modelHandler) SetCellValue(m *ui.TableModel, row, column int, value ui.TableValue) {
	if column == 2 {
		mh.vms[row].hostname = string(value.(ui.TableString))
	}
	if column == 6 {		// row background color
		prevYellowRow := mh.yellowRow
		mh.yellowRow = row
		if prevYellowRow != -1 {
			m.RowChanged(prevYellowRow)
		}
		m.RowChanged(mh.yellowRow)
	}
	if column == 7 {		// checkboxes
		mh.checkStates[row] = int(value.(ui.TableInt))
	}
}

func maketable() *ui.Table {
	img[0] = ui.NewImage(16, 16)
	img[1] = ui.NewImage(16, 16)

	mh := newModelHandler()
	model := ui.NewTableModel(mh)

	table := ui.NewTable(
		&ui.TableParams{
			Model:	model,
			RowBackgroundColorModelColumn:	3,
	})

	table.AppendTextColumn("Column 1", 0, ui.TableModelColumnNeverEditable, nil)

	table.AppendImageTextColumn("Column 2", 5,
		1, ui.TableModelColumnNeverEditable, &ui.TableTextColumnOptionalParams{
			ColorModelColumn:		4,
		});

	table.AppendTextColumn("hostname", 2, ui.TableModelColumnAlwaysEditable, nil)
	table.AppendCheckboxColumn("Checkboxes", 7, ui.TableModelColumnAlwaysEditable)
	table.AppendButtonColumn("Buttons", 6, ui.TableModelColumnAlwaysEditable)
	table.AppendProgressBarColumn("Progress Bar", 8)

	return table
}