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WIP implementation of table cell padding

This commit is contained in:
Trevor Slocum 2020-12-07 09:41:22 -08:00
parent 1513847ae3
commit 20b34dda65
4 changed files with 122 additions and 84 deletions
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3
demos/presentation/table.go
View File

@ -250,6 +250,9 @@ const tableSelectCell = `[green]func[white] [yellow]main[white]() {
// Table demonstrates the Table.
func Table(nextSlide func()) (title string, content cview.Primitive) {
table := cview.NewTable()
table.SetSeparator('|')
table.SetCellBorders(true)
table.SetCellPadding(1, 4)
table.SetFixed(1, 1)
for row, line := range strings.Split(tableData, "\n") {
for column, cell := range strings.Split(line, "|") {

6
go.mod
View File

@ -1,13 +1,13 @@
module gitlab.com/tslocum/cview
go 1.12
go 1.15
require (
github.com/gdamore/tcell/v2 v2.0.1-0.20201109052606-7d87d8188c8d
github.com/gdamore/tcell/v2 v2.0.0
github.com/lucasb-eyer/go-colorful v1.0.3
github.com/mattn/go-runewidth v0.0.9
github.com/rivo/uniseg v0.2.0
gitlab.com/tslocum/cbind v0.1.4
golang.org/x/sys v0.0.0-20201202213521-69691e467435 // indirect
golang.org/x/sys v0.0.0-20201204225414-ed752295db88 // indirect
golang.org/x/text v0.3.4 // indirect
)

9
go.sum
View File

@ -1,8 +1,8 @@
github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
github.com/gdamore/tcell/v2 v2.0.0-dev/go.mod h1:vSVL/GV5mCSlPC6thFP5kfOFdM9MGZcalipmpTxTgQA=
github.com/gdamore/tcell/v2 v2.0.1-0.20201109052606-7d87d8188c8d h1:C1FQEuzw5kUUveSXpZp3v0+qOR+VEnzHsQ7K6n39LsM=
github.com/gdamore/tcell/v2 v2.0.1-0.20201109052606-7d87d8188c8d/go.mod h1:vSVL/GV5mCSlPC6thFP5kfOFdM9MGZcalipmpTxTgQA=
github.com/gdamore/tcell/v2 v2.0.0 h1:GRWG8aLfWAlekj9Q6W29bVvkHENc6hp79XOqG4AWDOs=
github.com/gdamore/tcell/v2 v2.0.0/go.mod h1:vSVL/GV5mCSlPC6thFP5kfOFdM9MGZcalipmpTxTgQA=
github.com/lucasb-eyer/go-colorful v1.0.3 h1:QIbQXiugsb+q10B+MI+7DI1oQLdmnep86tWFlaaUAac=
github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
@ -13,9 +13,10 @@ github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJ
gitlab.com/tslocum/cbind v0.1.4 h1:cbZXPPcieXspk8cShoT6efz7HAT8yMNQcofYWNizis4=
gitlab.com/tslocum/cbind v0.1.4/go.mod h1:RvwYE3auSjBNlCmWeGspzn+jdLUVQ8C2QGC+0nP9ChI=
golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201013132646-2da7054afaeb h1:HS9IzC4UFbpMBLQUDSQcU+ViVT1vdFCQVjdPVpTlZrs=
golang.org/x/sys v0.0.0-20201013132646-2da7054afaeb/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201202213521-69691e467435 h1:25AvDqqB9PrNqj1FLf2/70I4W0L19qqoaFq3gjNwbKk=
golang.org/x/sys v0.0.0-20201202213521-69691e467435/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201204225414-ed752295db88 h1:KmZPnMocC93w341XZp26yTJg8Za7lhb2KhkYmixoeso=
golang.org/x/sys v0.0.0-20201204225414-ed752295db88/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=

188
table.go
View File

@ -2,6 +2,7 @@ package cview
import (
"bytes"
"log"
"sort"
"sync"
@ -263,14 +264,17 @@ type Table struct {
*Box
// Whether or not this table has borders around each cell.
borders bool
cellBorders bool
// The color of the borders or the separator.
bordersColor tcell.Color
// The color of the cell borders or the separator.
cellBorderColor tcell.Color
// If there are no borders, the column separator.
separator rune
// The size of the padding between each cell.
rowPadding, columnPadding int
// The cells of the table. Rows first, then columns.
cells [][]*TableCell
@ -353,7 +357,7 @@ func NewTable() *Table {
Box: NewBox(),
scrollBarVisibility: ScrollBarAuto,
scrollBarColor: Styles.ScrollBarColor,
bordersColor: Styles.GraphicsColor,
cellBorderColor: Styles.GraphicsColor,
separator: ' ',
sortClicked: true,
lastColumn: -1,
@ -369,23 +373,6 @@ func (t *Table) Clear() {
t.lastColumn = -1
}
// SetBorders sets whether or not each cell in the table is surrounded by a
// border.
func (t *Table) SetBorders(show bool) {
t.Lock()
defer t.Unlock()
t.borders = show
}
// SetBordersColor sets the color of the cell borders.
func (t *Table) SetBordersColor(color tcell.Color) {
t.Lock()
defer t.Unlock()
t.bordersColor = color
}
// SetScrollBarVisibility specifies the display of the scroll bar.
func (t *Table) SetScrollBarVisibility(visibility ScrollBarVisibility) {
t.Lock()
@ -430,6 +417,30 @@ func (t *Table) SetSeparator(separator rune) {
t.separator = separator
}
// SetCellBorders sets whether or not each cell is surrounded by a border.
func (t *Table) SetCellBorders(show bool) {
t.Lock()
defer t.Unlock()
t.cellBorders = show
}
// SetCellBorderColor sets the color of the cell borders.
func (t *Table) SetCellBorderColor(color tcell.Color) {
t.Lock()
defer t.Unlock()
t.cellBorderColor = color
}
// SetCellPadding sets the size of the padding between each cell.
func (t *Table) SetCellPadding(row, column int) {
t.Lock()
defer t.Unlock()
t.rowPadding, t.columnPadding = row, column
}
// SetFixed sets the number of fixed rows and columns which are always visible
// even when the rest of the cells are scrolled out of view. Rows are always the
// top-most ones. Columns are always the left-most ones.
@ -694,7 +705,7 @@ func (t *Table) cellAt(x, y int) (row, column int) {
rectX, rectY, _, _ := t.GetInnerRect()
// Determine row as seen on screen.
if t.borders {
if t.cellBorders {
row = (y - rectY - 1) / 2
} else {
row = y - rectY
@ -714,7 +725,7 @@ func (t *Table) cellAt(x, y int) (row, column int) {
column = -1
if x >= rectX {
columnX := rectX
if t.borders {
if t.cellBorders {
columnX++
}
for index, width := range t.visibleColumnWidths {
@ -815,7 +826,7 @@ func (t *Table) Draw(screen tcell.Screen) {
// What's our available screen space?
x, y, width, height := t.GetInnerRect()
if t.borders {
if t.cellBorders {
t.visibleRows = height / 2
} else {
t.visibleRows = height
@ -861,9 +872,10 @@ func (t *Table) Draw(screen tcell.Screen) {
t.rowOffset = t.selectedRow - t.fixedRows
t.trackEnd = false
}
if t.borders {
if 2*(t.selectedRow+1-t.rowOffset) >= height {
t.rowOffset = t.selectedRow + 1 - height/2
if t.cellBorders {
if 2*(t.rowPadding+t.selectedRow+1-t.rowOffset) >= height {
log.Fatal("test")
t.rowOffset = t.selectedRow + 1
t.trackEnd = false
}
} else {
@ -873,18 +885,18 @@ func (t *Table) Draw(screen tcell.Screen) {
}
}
}
if t.borders {
if 2*(len(t.cells)-t.rowOffset) < height {
if t.cellBorders {
if 2*(len(t.cells)-t.rowOffset)*t.rowPadding < height {
t.trackEnd = true
}
} else {
if len(t.cells)-t.rowOffset < height {
if 2*(t.rowPadding+len(t.cells)-t.rowOffset) < height {
t.trackEnd = true
}
}
if t.trackEnd {
if t.borders {
t.rowOffset = len(t.cells) - height/2
if t.cellBorders {
t.rowOffset = len(t.cells) + height/(2*(t.rowPadding+1))
} else {
t.rowOffset = len(t.cells) - height
}
@ -912,10 +924,11 @@ func (t *Table) Draw(screen tcell.Screen) {
tableHeight, tableWidth int
)
rowStep := 1
if t.borders {
if t.cellBorders {
rowStep = 2 // With borders, every table row takes two screen rows.
tableWidth = 1 // We start at the second character because of the left table border.
}
rowStep += t.rowPadding
if t.evaluateAllRows {
allRows = make([]int, len(t.cells))
for row := range t.cells {
@ -1026,41 +1039,75 @@ ColumnLoop:
}
// Helper function which draws border runes.
borderStyle := tcell.StyleDefault.Background(t.backgroundColor).Foreground(t.bordersColor)
borderStyle := tcell.StyleDefault.Background(t.backgroundColor).Foreground(t.cellBorderColor)
drawBorder := func(colX, rowY int, ch rune) {
screen.SetContent(x+colX, y+rowY, ch, nil, borderStyle)
}
// TODO Center in padding amount
// TODO incorrect vertical scroll amount
// Draw the cells (and borders).
var columnX int
if !t.borders {
if !t.cellBorders {
columnX--
}
numRows := len(rows)
numCols := len(columns)
for columnIndex, column := range columns {
columnWidth := widths[columnIndex]
for rowY, row := range rows {
if t.borders {
for i, row := range rows {
rowY := i + (t.rowPadding * i * 2)
if t.cellBorders {
rowY = i*2 + (t.rowPadding * i * 2)
// Draw borders.
rowY *= 2
for pos := 0; pos < columnWidth && columnX+1+pos < width; pos++ {
drawBorder(columnX+pos+1, rowY, Borders.Horizontal)
}
if i == 0 && columnX+columnWidth+1 < width {
drawBorder(columnX+columnWidth+1, rowY, Borders.TopRight)
}
ch := Borders.Cross
if columnIndex == 0 {
if rowY == 0 {
if i == 0 {
ch = Borders.TopLeft
} else if i == numRows-1 {
ch = Borders.BottomLeft
} else {
ch = Borders.LeftT
}
} else if rowY == 0 {
ch = Borders.TopT
} else if i == numRows-1 {
if i == 0 {
ch = Borders.BottomLeft
} else {
ch = Borders.BottomT
}
}
drawBorder(columnX, rowY, ch)
rowY++
if rowY >= height {
if rowY+1 >= height {
break // No space for the text anymore.
}
drawBorder(columnX, rowY, Borders.Vertical)
rowY += t.rowPadding
for j := 0 - t.rowPadding; j < t.rowPadding+1; j++ {
if rowY+j >= height {
break
}
drawBorder(columnX, rowY+j, Borders.Vertical)
if columnIndex == numCols-1 && columnX+columnWidth+1 < width {
drawBorder(columnX+columnWidth+1, rowY+j, Borders.Vertical)
}
}
if columnIndex == numCols-1 && columnX+columnWidth+1 < width && rowY+t.rowPadding+1 <= height {
//log.Println(i)
if i == numRows-2 {
drawBorder(columnX+columnWidth+1, rowY+t.rowPadding+1, Borders.BottomRight)
} else {
drawBorder(columnX+columnWidth+1, rowY+t.rowPadding+1, Borders.RightT)
}
}
} else if columnIndex > 0 {
// Draw separator.
drawBorder(columnX, rowY, t.separator)
@ -1085,39 +1132,9 @@ ColumnLoop:
}
}
// Draw bottom border.
if rowY := 2 * len(rows); t.borders && rowY < height {
for pos := 0; pos < columnWidth && columnX+1+pos < width; pos++ {
drawBorder(columnX+pos+1, rowY, Borders.Horizontal)
}
ch := Borders.BottomT
if columnIndex == 0 {
ch = Borders.BottomLeft
}
drawBorder(columnX, rowY, ch)
}
columnX += columnWidth + 1
}
// Draw right border.
if t.borders && len(t.cells) > 0 && columnX < width {
for rowY := range rows {
rowY *= 2
if rowY+1 < height {
drawBorder(columnX, rowY+1, Borders.Vertical)
}
ch := Borders.RightT
if rowY == 0 {
ch = Borders.TopRight
}
drawBorder(columnX, rowY, ch)
}
if rowY := 2 * len(rows); rowY < height {
drawBorder(columnX, rowY, Borders.BottomRight)
}
}
if showVerticalScrollBar {
// Calculate scroll bar position and dimensions.
rows := len(t.cells)
@ -1132,7 +1149,7 @@ ColumnLoop:
}
padTotalOffset := 1
if t.borders {
if t.cellBorders {
padTotalOffset = 2
scrollBarItems *= 2
@ -1162,7 +1179,7 @@ ColumnLoop:
m, c, style, _ := screen.GetContent(fromX+bx, fromY+by)
fg, bg, a := style.Decompose()
if invert {
if fg == textColor || fg == t.bordersColor {
if fg == textColor || fg == t.cellBorderColor {
fg = backgroundColor
}
if fg == tcell.ColorDefault {
@ -1195,7 +1212,8 @@ ColumnLoop:
}
cellsByBackgroundColor := make(map[tcell.Color][]*cellInfo)
var backgroundColors []tcell.Color
for rowY, row := range rows {
for i, row := range rows {
rowY := i + (t.rowPadding * i)
columnX := 0
rowSelected := t.rowsSelectable && !t.columnsSelectable && row == t.selectedRow
for columnIndex, column := range columns {
@ -1205,8 +1223,8 @@ ColumnLoop:
continue
}
bx, by, bw, bh := x+columnX, y+rowY, columnWidth+1, 1
if t.borders {
by = y + rowY*2
if t.cellBorders {
by = y + ((t.columnPadding * i) * 2)
bw++
bh = 3
}
@ -1430,7 +1448,7 @@ func (t *Table) MouseHandler() func(action MouseAction, event *tcell.EventMouse,
_, tableY, _, _ := t.GetInnerRect()
mul := 1
maxY := tableY
if t.borders {
if t.cellBorders {
mul = 2
maxY = tableY + 1
}
@ -1466,3 +1484,19 @@ func (t *Table) MouseHandler() func(action MouseAction, event *tcell.EventMouse,
return
})
}
// SetBorders sets whether or not each cell in the table is surrounded by a border.
//
// Deprecated: This function is provided for backwards compatibility.
// Developers should use SetCellBorder instead.
func (t *Table) SetBorders(show bool) {
t.SetCellBorders(show)
}
// SetBordersColor sets the color of the cell borders.
//
// Deprecated: This function is provided for backwards compatibility.
// Developers should use SetCellBorderColor instead.
func (t *Table) SetBordersColor(color tcell.Color) {
t.SetCellBorderColor(color)
}