view,compose: use border color to separate headers from body

When composing a message, there is an empty fill line between the
headers and the text editor. The line is printed with the default style
which may cause users to assume it is part of the editor.

Display the fill lines with the border color to avoid confusion.

Signed-off-by: Robin Jarry <robin@jarry.cc>

1 files changed, 7 insertions, 4 deletions

diff --git a/lib/ui/fill.go b/lib/ui/fill.go
index 0ab4f74..13ad286 100644
--- a/lib/ui/fill.go
+++ b/lib/ui/fill.go
@@ -4,16 +4,19 @@ import (
 	"github.com/gdamore/tcell/v2"
 )
 
-type Fill rune
+type Fill struct {
+	Rune  rune
+	Style tcell.Style
+}
 
-func NewFill(f rune) Fill {
-	return Fill(f)
+func NewFill(f rune, s tcell.Style) Fill {
+	return Fill{f, s}
 }
 
 func (f Fill) Draw(ctx *Context) {
 	for x := 0; x < ctx.Width(); x += 1 {
 		for y := 0; y < ctx.Height(); y += 1 {
-			ctx.SetCell(x, y, rune(f), tcell.StyleDefault)
+			ctx.SetCell(x, y, f.Rune, f.Style)
 		}
 	}
 }