From d7bac40f11fc18121ca3d26175fb85f187a6f24c Mon Sep 17 00:00:00 2001
From: Florian Fischer <florian.fischer@muhq.space>
Date: Sat, 28 Dec 2024 11:34:53 +0100
Subject: migrate to ebiten/v2/text/v2

---
 go/ui/buffer.go | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

(limited to 'go/ui/buffer.go')

diff --git a/go/ui/buffer.go b/go/ui/buffer.go
index 201273b8..e46461bf 100644
--- a/go/ui/buffer.go
+++ b/go/ui/buffer.go
@@ -4,7 +4,7 @@ import (
 	"image/color"
 
 	"github.com/hajimehoshi/ebiten/v2"
-	"github.com/hajimehoshi/ebiten/v2/text"
+	"github.com/hajimehoshi/ebiten/v2/text/v2"
 
 	"muhq.space/muhqs-game/go/font"
 )
@@ -18,10 +18,13 @@ type Buffer struct {
 	WidgetBase
 	lines []string
 	pos   int
+	font *text.GoTextFace
+	lineSpacing float64
+	xMargin     float64
 }
 
 func NewBuffer(x, y int, width, height int) *Buffer {
-	b := &Buffer{NewWidgetBase(x, y, width, height), []string{}, 0}
+	b := &Buffer{NewWidgetBase(x, y, width, height), []string{}, 0, font.Font18, 1.5, 10.}
 	b.renderImpl = func() *ebiten.Image { return b.render() }
 	return b
 }
@@ -29,14 +32,18 @@ func NewBuffer(x, y int, width, height int) *Buffer {
 func (b *Buffer) render() *ebiten.Image {
 	img := ebiten.NewImage(b.Width, b.Height)
 	img.Fill(BUFFER_BACKGROUND)
-	y := 0
+	var y float64 = -b.font.Size
 	for _, line := range b.lines[b.pos:] {
-		bounds := text.BoundString(font.Font18, line)
-		y += bounds.Dy()
-		if y > b.Height {
+		_, h := text.Measure(line, b.font, b.font.Size * b.lineSpacing)
+		y += h
+		if y > float64(b.Height) {
 			break
 		}
-		text.Draw(img, line, font.Font18, 0, y, BUFFER_FOREGROUND)
+		op := &text.DrawOptions{}
+		op.ColorScale.ScaleWithColor(BUFFER_FOREGROUND)
+		op.GeoM.Translate(b.xMargin, float64(y))
+		op.LineSpacing = b.font.Size * b.lineSpacing
+		text.Draw(img, line, b.font, op)
 	}
 	return img
 }
-- 
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