show number of selected/saved files in status line

cc #143

ui.go

@@ -244,11 +244,11 @@ func (win *win) printf(screen tcell.Screen, x, y int, st tcell.Style, format str
 }
 
 func (win *win) printLine(screen tcell.Screen, x, y int, st tcell.Style, s string) {
-	win.printf(screen, x, y, st, "%s%*s", s, win.w-len(s), "")
+	win.printf(screen, x, y, st, "%s%*s", s, win.w-printLength(s), "")
 }
 
 func (win *win) printRight(screen tcell.Screen, y int, st tcell.Style, s string) {
-	win.print(screen, win.w-len(s), y, st, s)
+	win.print(screen, win.w-printLength(s), y, st, s)
 }
 
 func (win *win) printReg(screen tcell.Screen, reg *reg) {
@@ -729,6 +729,30 @@ func (ui *ui) drawStatLine(nav *nav) {
 	ind := min(dir.ind+1, tot)
 	acc := string(ui.keyCount) + string(ui.keyAcc)
 
+	var selection string
+
+	if len(nav.saves) > 0 {
+		copy := 0
+		move := 0
+		for _, cp := range nav.saves {
+			if cp {
+				copy++
+			} else {
+				move++
+			}
+		}
+		if copy > 0 {
+			selection += fmt.Sprintf("  \033[33;7m %d \033[0m", copy)
+		}
+		if move > 0 {
+			selection += fmt.Sprintf("  \033[31;7m %d \033[0m", move)
+		}
+	}
+
+	if len(nav.selections) > 0 {
+		selection += fmt.Sprintf("  \033[35;7m %d \033[0m", len(nav.selections))
+	}
+
 	var progress string
 
 	if nav.copyTotal > 0 {
@@ -744,7 +768,7 @@ func (ui *ui) drawStatLine(nav *nav) {
 		progress += fmt.Sprintf("  [%d/%d]", nav.deleteCount, nav.deleteTotal)
 	}
 
-	ruler := fmt.Sprintf("%s%s  %d/%d", acc, progress, ind, tot)
+	ruler := fmt.Sprintf("%s%s%s  %d/%d", acc, progress, selection, ind, tot)
 
 	ui.msgWin.printRight(ui.screen, 0, st, ruler)
 }