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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "image" | ||
| "image/color" | ||
| "image/draw" | ||
| "image/png" | ||
| "io" | ||
| "log" | ||
| "os" | ||
| "os/exec" | ||
| "sync/atomic" | ||
| "time" | ||
|
|
||
| "github.com/charmbracelet/x/termios" | ||
| "github.com/charmbracelet/x/vt" | ||
| "github.com/creack/pty" | ||
| "golang.org/x/image/font" | ||
| "golang.org/x/image/font/basicfont" | ||
| "golang.org/x/image/math/fixed" | ||
| "golang.org/x/sys/unix" | ||
| ) | ||
|
|
||
| const ( | ||
| fontWidth = 7 | ||
| fontHeight = 13 | ||
| ) | ||
|
|
||
| func drawChar(img *image.RGBA, x, y int, fg color.Color, text string) { | ||
| point := fixed.Point26_6{fixed.Int26_6(x * 64), fixed.Int26_6(y * 64)} | ||
| if fg == nil { | ||
| fg = color.White | ||
| } | ||
| d := &font.Drawer{ | ||
| Dst: img, | ||
| Src: image.NewUniform(fg), | ||
| Face: basicfont.Face7x13, | ||
| Dot: point, | ||
| } | ||
| d.DrawString(text) | ||
| } | ||
|
|
||
| var counter int32 = 1 | ||
|
|
||
| func putImage(vt *vt.Terminal) { | ||
| rows, cols := vt.Height(), vt.Width() | ||
| img := image.NewRGBA(image.Rect(0, 0, cols*fontWidth, rows*fontHeight)) | ||
| draw.Draw(img, img.Bounds(), &image.Uniform{color.Black}, image.ZP, draw.Src) | ||
|
|
||
| for row := 0; row < rows; row++ { | ||
| for col := 0; col < cols; col++ { | ||
| cell, ok := vt.At(col, row) | ||
| if !ok { | ||
| log.Printf("failed to get at %d %d", row, col) | ||
| } | ||
| txt := cell.Content | ||
| if len(txt) > 0 && txt[0] != 0 { | ||
| fg, bg := cell.Style.Fg, cell.Style.Bg | ||
| if bg == nil { | ||
| bg = color.Black | ||
| } | ||
|
|
||
| // Draw background | ||
| x0, y0 := (col+1)*fontWidth, ((row+1)*fontHeight)-11 | ||
| x1, y1 := x0+fontWidth, y0+fontHeight | ||
| draw.Draw(img, image.Rect(x0, y0, x1, y1), &image.Uniform{bg}, image.ZP, draw.Over) | ||
|
|
||
| drawChar(img, (col+1)*fontWidth, (row+1)*fontHeight, fg, txt) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| f, err := os.Create(fmt.Sprintf("output%d.png", counter)) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| defer f.Close() | ||
| err = png.Encode(f, img) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| atomic.AddInt32(&counter, 1) | ||
| } | ||
|
|
||
| const ( | ||
| width = 165 | ||
| height = 25 | ||
| ) | ||
|
|
||
| func main() { | ||
| vt := vt.NewTerminal(width, height) | ||
| cmd := exec.Command("htop") | ||
|
|
||
| go func() { | ||
| for { | ||
| time.Sleep(1 * time.Second) | ||
| putImage(vt) | ||
| } | ||
| }() | ||
|
|
||
| go func() { | ||
| time.Sleep(5 * time.Second) | ||
| cmd.Process.Kill() | ||
| }() | ||
|
|
||
| ptm, err := pty.Start(cmd) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| if err := termios.SetWinsize(int(ptm.Fd()), &unix.Winsize{Row: uint16(height), Col: uint16(width)}); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| go io.Copy(ptm, vt) | ||
| go io.Copy(vt, ptm) | ||
|
|
||
| if err := cmd.Wait(); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| } |