123 lines
2.5 KiB
Go
123 lines
2.5 KiB
Go
package termui
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import tm "github.com/nsf/termbox-go"
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const TOP_RIGHT = '┐'
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const VERTICAL_LINE = '│'
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const HORIZONTAL_LINE = '─'
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const TOP_LEFT = '┌'
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const BOTTOM_RIGHT = '┘'
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const BOTTOM_LEFT = '└'
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type Box struct {
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X int
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Y int
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Width int
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Height int
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FgColor tm.Attribute
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BgColor tm.Attribute
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}
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type HLine struct {
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X int
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Y int
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Length int
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FgColor tm.Attribute
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BgColor tm.Attribute
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}
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type VLine struct {
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X int
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Y int
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Length int
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FgColor tm.Attribute
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BgColor tm.Attribute
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}
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func (l HLine) Buffer() []Point {
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pts := make([]Point, l.Length)
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for i := 0; i < l.Length; i++ {
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pts[i].X = l.X + i
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pts[i].Y = l.Y
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pts[i].Code.Ch = HORIZONTAL_LINE
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pts[i].Code.Bg = l.BgColor
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pts[i].Code.Fg = l.FgColor
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}
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return pts
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}
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func (l VLine) Buffer() []Point {
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pts := make([]Point, l.Length)
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for i := 0; i < l.Length; i++ {
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pts[i].X = l.X
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pts[i].Y = l.Y + i
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pts[i].Code.Ch = VERTICAL_LINE
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pts[i].Code.Bg = l.BgColor
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pts[i].Code.Fg = l.FgColor
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}
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return pts
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}
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func (b Box) Buffer() []Point {
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if b.Width < 2 || b.Height < 2 {
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return nil
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}
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pts := make([]Point, 2*b.Width+2*b.Height-4)
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pts[0].X = b.X
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pts[0].Y = b.Y
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pts[0].Code.Fg = b.FgColor
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pts[0].Code.Bg = b.BgColor
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pts[0].Code.Ch = TOP_LEFT
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pts[1].X = b.X + b.Width - 1
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pts[1].Y = b.Y
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pts[1].Code.Fg = b.FgColor
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pts[1].Code.Bg = b.BgColor
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pts[1].Code.Ch = TOP_RIGHT
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pts[2].X = b.X
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pts[2].Y = b.Y + b.Height - 1
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pts[2].Code.Fg = b.FgColor
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pts[2].Code.Bg = b.BgColor
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pts[2].Code.Ch = BOTTOM_LEFT
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pts[3].X = b.X + b.Width - 1
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pts[3].Y = b.Y + b.Height - 1
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pts[3].Code.Fg = b.FgColor
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pts[3].Code.Bg = b.BgColor
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pts[3].Code.Ch = BOTTOM_RIGHT
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copy(pts[4:], (HLine{b.X + 1, b.Y, b.Width - 2, b.FgColor, b.BgColor}).Buffer())
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copy(pts[4+b.Width-2:], (HLine{b.X + 1, b.Y + b.Height - 1, b.Width - 2, b.FgColor, b.BgColor}).Buffer())
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copy(pts[4+2*b.Width-4:], (VLine{b.X, b.Y + 1, b.Height - 2, b.FgColor, b.BgColor}).Buffer())
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copy(pts[4+2*b.Width-4+b.Height-2:], (VLine{b.X + b.Width - 1, b.Y + 1, b.Height - 2, b.FgColor, b.BgColor}).Buffer())
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return pts
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}
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type LabeledBox struct {
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Box
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Label string
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LabelFgColor tm.Attribute
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LabelBgColor tm.Attribute
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}
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func (lb LabeledBox) Buffer() []Point {
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ps := lb.Box.Buffer()
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maxTxtW := lb.Width - 2
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rs := trimStr2Runes(lb.Label, maxTxtW)
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for i := 0; i < len(rs); i++ {
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p := Point{}
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p.X = lb.X + 1 + i
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p.Y = lb.Y
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p.Code.Ch = rs[i]
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p.Code.Fg = lb.LabelFgColor
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p.Code.Bg = lb.LabelBgColor
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ps = append(ps, p)
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}
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return ps
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}
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