Add method View.ViewBuffer

_examples/demo.go

@@ -9,6 +9,7 @@ import (
 	"io"
 	"io/ioutil"
 	"log"
+	"strings"
 
 	"github.com/jroimartin/gocui"
 )
@@ -108,6 +109,9 @@ func keybindings(g *gocui.Gui) error {
 	if err := g.SetKeybinding("main", gocui.KeyCtrlS, gocui.ModNone, saveMain); err != nil {
 		return err
 	}
+	if err := g.SetKeybinding("main", gocui.KeyCtrlW, gocui.ModNone, saveVisualMain); err != nil {
+		return err
+	}
 	return nil
 }
 
@@ -137,6 +141,20 @@ func saveMain(g *gocui.Gui, v *gocui.View) error {
 	return nil
 }
 
+func saveVisualMain(g *gocui.Gui, v *gocui.View) error {
+	f, err := ioutil.TempFile("", "gocui_demo_")
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	vb := v.ViewBuffer()
+	if _, err := io.Copy(f, strings.NewReader(vb)); err != nil {
+		return err
+	}
+	return nil
+}
+
 func layout(g *gocui.Gui) error {
 	maxX, maxY := g.Size()
 	if v, err := g.SetView("side", -1, -1, 30, maxY); err != nil {

view.go

@@ -428,6 +428,16 @@ func (v *View) Buffer() string {
 	return strings.Replace(str, "\x00", " ", -1)
 }
 
+// ViewBuffer returns a string with the contents of the view's buffer that is
+// showed to the user
+func (v *View) ViewBuffer() string {
+	str := ""
+	for _, l := range v.viewLines {
+		str += string(l.line) + "\n"
+	}
+	return strings.Replace(str, "\x00", " ", -1)
+}
+
 // Line returns a string with the line of the view's internal buffer
 // at the position corresponding to the point (x, y).
 func (v *View) Line(y int) (string, error) {