Fix candidate for #167

widgets/help.go

@@ -1,58 +1,40 @@
 package widgets
 
 import (
-	"image"
 	"strings"
 
-	ui "github.com/gizak/termui/v3"
+	"github.com/gizak/termui/v3/widgets"
 	lingo "github.com/xxxserxxx/lingo"
 )
 
+// Used by all widgets
 var tr lingo.Translations
-var keyBinds string
 
 type HelpMenu struct {
-	ui.Block
+	widgets.Paragraph
 }
 
 func NewHelpMenu(tra lingo.Translations) *HelpMenu {
 	tr = tra
-	keyBinds = tr.Value("help.help")
-	return &HelpMenu{
-		Block: *ui.NewBlock(),
+	help := &HelpMenu{
+		Paragraph: *widgets.NewParagraph(),
 	}
+	help.Paragraph.Text = tra.Value("help.help")
+	return help
 }
 
 func (help *HelpMenu) Resize(termWidth, termHeight int) {
 	textWidth := 53
-	for _, line := range strings.Split(keyBinds, "\n") {
+	var nlines int
+	var line string
+	for nlines, line = range strings.Split(help.Text, "\n") {
 		if textWidth < len(line) {
 			textWidth = len(line) + 2
 		}
 	}
-	textHeight := strings.Count(keyBinds, "\n") + 1
+	textHeight := nlines + 2
 	x := (termWidth - textWidth) / 2
 	y := (termHeight - textHeight) / 2
 
-	help.Block.SetRect(x, y, textWidth+x, textHeight+y)
-}
-
-func (help *HelpMenu) Draw(buf *ui.Buffer) {
-	help.Block.Draw(buf)
-
-	for y, line := range strings.Split(keyBinds, "\n") {
-		for x, rune := range line {
-			buf.SetCell(
-				ui.NewCell(rune, ui.Theme.Default),
-				image.Pt(help.Inner.Min.X+x, help.Inner.Min.Y+y-1),
-			)
-		}
-	}
-}
-
-func maxInt(a int, b int) int {
-	if a > b {
-		return a
-	}
-	return b
+	help.Paragraph.SetRect(x, y, textWidth+x, textHeight+y)
 }