cloud-control-panel/example-UI-table/tableDemo.go

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

package main

import "fmt"
import "log"
import "github.com/davecgh/go-spew/spew"

import "github.com/andlabs/ui"
import _ "github.com/andlabs/ui/winmanifest"

func newDemoModelHandler() *modelHandler {
	mh := new(modelHandler)
	mh.rows = 20
	mh.funcColumnTypes = demoColumnTypes
	mh.scanCellValue   = demoCellValue
	mh.setCellValue    = demoSetCellValue
	mh.checkStates = make([]int, mh.rows)
	mh.vms         = make([]vmRowData, mh.rows)
	mh.vms[8].hostname = "host1"
	mh.vms[9].hostname = "host3test"
	mh.yellowRow = -1
	log.Println("Called newDemoModelhandler() with mh=", mh)
	spew.Dump(mh)
	return mh
}

func demoColumnTypes() []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
	}
}

var img [2]*ui.Image

func demoCellValue(mh *modelHandler, 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 {
			// Red with .1 transparency
			// R G B Trans
			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 in demoCellValue()")
}

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

	mh := newDemoModelHandler()
	mh.name = name
	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
}

func demoSetCellValue(mh *modelHandler, 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))
	}
}