rui_orig/tableAdapter.go

267 lines
7.0 KiB
Go

package rui
// TableAdapter describes the [TableView] content
type TableAdapter interface {
// RowCount returns number of rows in the table
RowCount() int
// ColumnCount returns number of columns in the table
ColumnCount() int
// Cell returns the contents of a table cell. The function can return elements of the following types:
// - string
// - rune
// - float32, float64
// - integer values: int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64
// - bool
// - rui.Color
// - rui.View
// - fmt.Stringer
// - rui.VerticalTableJoin, rui.HorizontalTableJoin
Cell(row, column int) any
}
// TableColumnStyle describes the style of [TableView] columns.
//
// To set column styles, you must either implement the [TableColumnStyle] interface in the table adapter
// or assign its separate implementation to the "column-style" property.
type TableColumnStyle interface {
// ColumnStyle returns a map of properties which describe the style of the column
ColumnStyle(column int) Params
}
// TableRowStyle describes the style of [TableView] rows.
//
// To set row styles, you must either implement the [TableRowStyle] interface in the table adapter
// or assign its separate implementation to the "row-style" property.
type TableRowStyle interface {
// RowStyle returns a map of properties which describe the style of the row
RowStyle(row int) Params
}
// TableCellStyle describes the style of [TableView] cells.
//
// To set row cells, you must either implement the [TableCellStyle] interface in the table adapter
// or assign its separate implementation to the "cell-style" property.
type TableCellStyle interface {
// CellStyle returns a map of properties which describe the style of the cell
CellStyle(row, column int) Params
}
// TableAllowCellSelection determines whether [TableView] cell selection is allowed.
//
// It is only used if the "selection-mode" property is set to CellSelection (1).
//
// To set cell selection allowing, you must either implement the TableAllowCellSelection interface
// in the table adapter or assign its separate implementation to the "allow-selection" property.
type TableAllowCellSelection interface {
// AllowCellSelection returns "true" if we allow the user to select particular cell at specific rows and columns
AllowCellSelection(row, column int) bool
}
// TableAllowRowSelection determines whether [TableView] row selection is allowed.
//
// It is only used if the "selection-mode" property is set to RowSelection (2).
//
// To set row selection allowing, you must either implement the TableAllowRowSelection interface
// in the table adapter or assign its separate implementation to the "allow-selection" property.
type TableAllowRowSelection interface {
// AllowRowSelection returns "true" if we allow the user to select particular row in the table
AllowRowSelection(row int) bool
}
// SimpleTableAdapter is implementation of [TableAdapter] where the content
// defines as [][]any.
//
// When you assign [][]any value to the "content" property, it is converted to SimpleTableAdapter
type SimpleTableAdapter interface {
TableAdapter
TableCellStyle
}
type simpleTableAdapter struct {
content [][]any
columnCount int
}
// TextTableAdapter is implementation of [TableAdapter] where the content
// defines as [][]string.
// When you assign [][]string value to the "content" property, it is converted to TextTableAdapter
type TextTableAdapter interface {
TableAdapter
}
type textTableAdapter struct {
content [][]string
columnCount int
}
// NewTextTableAdapter is an auxiliary structure. It used as cell content and
// specifies that the cell should be merged with the one above it
type VerticalTableJoin struct {
}
// HorizontalTableJoin is an auxiliary structure. It used as cell content and
// specifies that the cell should be merged with the one before it
type HorizontalTableJoin struct {
}
// NewSimpleTableAdapter creates the new SimpleTableAdapter
func NewSimpleTableAdapter(content [][]any) SimpleTableAdapter {
if content == nil {
return nil
}
adapter := new(simpleTableAdapter)
adapter.content = content
adapter.columnCount = 0
for _, row := range content {
if row != nil {
columnCount := len(row)
if adapter.columnCount < columnCount {
adapter.columnCount = columnCount
}
}
}
return adapter
}
func (adapter *simpleTableAdapter) RowCount() int {
if adapter.content != nil {
return len(adapter.content)
}
return 0
}
func (adapter *simpleTableAdapter) ColumnCount() int {
return adapter.columnCount
}
func (adapter *simpleTableAdapter) Cell(row, column int) any {
if adapter.content != nil && row >= 0 && row < len(adapter.content) &&
adapter.content[row] != nil && column >= 0 && column < len(adapter.content[row]) {
return adapter.content[row][column]
}
return nil
}
func (adapter *simpleTableAdapter) CellStyle(row, column int) Params {
if adapter.content == nil {
return nil
}
getColumnSpan := func() int {
count := 0
for i := column + 1; i < adapter.columnCount; i++ {
next := adapter.Cell(row, i)
switch next.(type) {
case HorizontalTableJoin:
count++
default:
return count
}
}
return count
}
getRowSpan := func() int {
rowCount := len(adapter.content)
count := 0
for i := row + 1; i < rowCount; i++ {
next := adapter.Cell(i, column)
switch next.(type) {
case VerticalTableJoin:
count++
default:
return count
}
}
return count
}
columnSpan := getColumnSpan()
rowSpan := getRowSpan()
var params Params = nil
if rowSpan > 0 {
params = Params{RowSpan: rowSpan + 1}
}
if columnSpan > 0 {
if params == nil {
params = Params{ColumnSpan: columnSpan + 1}
} else {
params[ColumnSpan] = columnSpan
}
}
return params
}
// NewTextTableAdapter creates the new TextTableAdapter
func NewTextTableAdapter(content [][]string) TextTableAdapter {
if content == nil {
return nil
}
adapter := new(textTableAdapter)
adapter.content = content
adapter.columnCount = 0
for _, row := range content {
if row != nil {
columnCount := len(row)
if adapter.columnCount < columnCount {
adapter.columnCount = columnCount
}
}
}
return adapter
}
func (adapter *textTableAdapter) RowCount() int {
if adapter.content != nil {
return len(adapter.content)
}
return 0
}
func (adapter *textTableAdapter) ColumnCount() int {
return adapter.columnCount
}
func (adapter *textTableAdapter) Cell(row, column int) any {
if adapter.content != nil && row >= 0 && row < len(adapter.content) &&
adapter.content[row] != nil && column >= 0 && column < len(adapter.content[row]) {
return adapter.content[row][column]
}
return nil
}
type simpleTableLineStyle struct {
params []Params
}
func (style *simpleTableLineStyle) ColumnStyle(column int) Params {
if column < len(style.params) {
params := style.params[column]
if len(params) > 0 {
return params
}
}
return nil
}
func (style *simpleTableLineStyle) RowStyle(row int) Params {
if row < len(style.params) {
params := style.params[row]
if len(params) > 0 {
return params
}
}
return nil
}