99 lines
2.1 KiB
Go
99 lines
2.1 KiB
Go
package asciibox
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import (
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ui "github.com/gizak/termui/v3"
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fl "github.com/mbndr/figlet4go"
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"github.com/sqshq/sampler/asset"
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"github.com/sqshq/sampler/component"
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"github.com/sqshq/sampler/config"
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"github.com/sqshq/sampler/console"
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"github.com/sqshq/sampler/data"
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"image"
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"strings"
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)
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// AsciiBox represents a component with ascii-style text
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type AsciiBox struct {
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*ui.Block
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*data.Consumer
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alert *data.Alert
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ascii string
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style ui.Style
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render *fl.AsciiRender
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options *fl.RenderOptions
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palette console.Palette
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}
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const asciiFontExtension = ".flf"
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func NewAsciiBox(c config.AsciiBoxConfig, palette console.Palette) *AsciiBox {
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options := fl.NewRenderOptions()
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options.FontName = string(*c.Font)
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fontStr, err := asset.Asset(options.FontName + asciiFontExtension)
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if err != nil {
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panic("Failed to load the font: " + err.Error())
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}
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render := fl.NewAsciiRender()
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_ = render.LoadBindataFont(fontStr, options.FontName)
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color := c.Color
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if color == nil {
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color = &palette.BaseColor
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}
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box := AsciiBox{
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Block: component.NewBlock(c.Title, *c.Border, palette),
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Consumer: data.NewConsumer(),
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style: ui.NewStyle(*color),
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render: render,
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options: options,
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palette: palette,
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}
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go func() {
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for {
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select {
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case sample := <-box.SampleChannel:
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box.renderText(sample)
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case alert := <-box.AlertChannel:
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box.alert = alert
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}
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}
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}()
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return &box
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}
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func (a *AsciiBox) renderText(sample *data.Sample) {
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text := strings.TrimSpace(sample.Value)
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lines := strings.Split(text, "\n")
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a.ascii = ""
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for _, line := range lines {
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ascii, _ := a.render.RenderOpts(line, a.options)
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a.ascii += ascii + "\n"
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}
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}
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func (a *AsciiBox) Draw(buffer *ui.Buffer) {
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buffer.Fill(ui.NewCell(' ', ui.NewStyle(ui.ColorBlack)), a.GetRect())
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a.Block.Draw(buffer)
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point := a.Inner.Min
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cells := ui.ParseStyles(a.ascii, a.style)
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for i := 0; i < len(cells) && point.Y < a.Inner.Max.Y; i++ {
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if cells[i].Rune == '\n' {
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point = image.Pt(a.Inner.Min.X, point.Y+1)
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} else if point.In(a.Inner) {
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buffer.SetCell(cells[i], point)
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point = point.Add(image.Pt(1, 0))
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}
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}
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component.RenderAlert(a.alert, a.Rectangle, buffer)
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}
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