83 lines
1.5 KiB
Go
83 lines
1.5 KiB
Go
package widgets
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import (
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"image"
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"strings"
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ui "github.com/gizak/termui/v3"
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)
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const KEYBINDS = `
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Quit: q or <C-c>
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Process navigation:
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- k and <Up>: up
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- j and <Down>: down
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- <C-u>: half page up
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- <C-d>: half page down
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- <C-b>: full page up
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- <C-f>: full page down
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- gg and <Home>: jump to top
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- G and <End>: jump to bottom
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Process actions:
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- <Tab>: toggle process grouping
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- dd: kill selected process or group of processes with SIGTERM (15)
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- d3: kill selected process or group of processes with SIGQUIT (3)
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- d9: kill selected process or group of processes with SIGKILL (9)
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Process sorting:
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- c: CPU
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- m: Mem
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- p: PID
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Process filtering:
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- /: start editing filter
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- (while editing):
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- <Enter>: accept filter
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- <C-c> and <Escape>: clear filter
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CPU and Mem graph scaling:
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- h: scale in
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- l: scale out
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`
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type HelpMenu struct {
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ui.Block
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}
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func NewHelpMenu() *HelpMenu {
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return &HelpMenu{
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Block: *ui.NewBlock(),
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}
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}
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func (self *HelpMenu) Resize(termWidth, termHeight int) {
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textWidth := 53
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textHeight := strings.Count(KEYBINDS, "\n") + 1
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x := (termWidth - textWidth) / 2
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y := (termHeight - textHeight) / 2
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self.Block.SetRect(x, y, textWidth+x, textHeight+y)
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}
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func (self *HelpMenu) Draw(buf *ui.Buffer) {
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self.Block.Draw(buf)
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for y, line := range strings.Split(KEYBINDS, "\n") {
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for x, rune := range line {
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buf.SetCell(
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ui.NewCell(rune, ui.NewStyle(7)),
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image.Pt(self.Inner.Min.X+x, self.Inner.Min.Y+y-1),
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)
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}
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}
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}
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func maxInt(a int, b int) int {
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if a > b {
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return a
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}
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return b
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}
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