Merge pull request #23 from yoichi/respect-terminal-width

Scale to terminal width if possible
mattn · Oct 8, 2019 · 6388459 · 6388459
2 parents 5a450f2 + 48760b5
commit 6388459
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/pixterm/pixterm.go b/pixterm/pixterm.go
@@ -5,8 +5,10 @@ import (
  "image"
  "image/png"
  "io"
+ "os"
 
  "github.com/lucasb-eyer/go-colorful"
+ "golang.org/x/crypto/ssh/terminal"
  "github.com/mattn/pixterm/ansimage"
 )
 
@@ -24,6 +26,10 @@ func NewEncoder(w io.Writer) *Encoder {
 
 func (e *Encoder) Encode(img image.Image) error {
  width, height := img.Bounds().Dx(), img.Bounds().Dy()
+ tw, _, err := terminal.GetSize(int(os.Stdout.Fd()))
+ if err == nil && width > tw * ansimage.BlockSizeX {
+ width = tw * ansimage.BlockSizeX
+ }
  if e.Width != 0 {
  width = e.Width
  }