mirror of https://github.com/bcicen/ctop.git
84 lines
1.6 KiB
Go
84 lines
1.6 KiB
Go
package single
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import (
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"time"
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"github.com/bcicen/ctop/models"
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ui "github.com/gizak/termui"
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)
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type LogLines struct {
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ts []time.Time
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data []string
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}
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func NewLogLines(max int) *LogLines {
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ll := &LogLines{
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ts: make([]time.Time, max),
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data: make([]string, max),
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}
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return ll
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}
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func (ll *LogLines) tail(n int) []string {
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lines := make([]string, n)
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for i := 0; i < n; i++ {
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lines = append(lines, ll.data[len(ll.data)-i])
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}
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return lines
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}
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func (ll *LogLines) getLines(start, end int) []string {
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if end < 0 {
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return ll.data[start:]
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}
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return ll.data[start:end]
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}
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func (ll *LogLines) add(l models.Log) {
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if len(ll.data) == cap(ll.data) {
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ll.data = append(ll.data[:0], ll.data[1:]...)
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ll.ts = append(ll.ts[:0], ll.ts[1:]...)
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}
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ll.ts = append(ll.ts, l.Timestamp)
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ll.data = append(ll.data, l.Message)
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log.Debugf("recorded log line: %v", l)
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}
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type Logs struct {
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*ui.List
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lines *LogLines
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}
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func NewLogs(stream chan models.Log) *Logs {
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p := ui.NewList()
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p.Y = ui.TermHeight() / 2
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p.X = 0
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p.Height = ui.TermHeight() - p.Y
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p.Width = ui.TermWidth()
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//p.Overflow = "wrap"
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p.ItemFgColor = ui.ThemeAttr("par.text.fg")
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i := &Logs{p, NewLogLines(4098)}
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go func() {
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for line := range stream {
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i.lines.add(line)
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ui.Render(i)
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}
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}()
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return i
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}
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func (w *Logs) Align() {
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w.X = colWidth[0]
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w.List.Align()
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}
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func (w *Logs) Buffer() ui.Buffer {
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maxLines := w.Height - 2
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offset := len(w.lines.data) - maxLines
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w.Items = w.lines.getLines(offset, -1)
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return w.List.Buffer()
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}
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// number of rows a line will occupy at current panel width
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func (w *Logs) lineHeight(s string) int { return (len(s) / w.InnerWidth()) + 1 }
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