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examples/blend: use text/v2

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Updates #2454
This commit is contained in:
Hajime Hoshi 2023-11-16 22:18:49 +09:00
parent cec8017ebe
commit a749f6fbc3
1 changed files with 11 additions and 12 deletions
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23
examples/blend/main.go
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@ -22,13 +22,11 @@ import (
_ "image/png" _ "image/png"
"log" "log"
"golang.org/x/image/font"
"golang.org/x/image/font/inconsolata" "golang.org/x/image/font/inconsolata"
"golang.org/x/image/math/fixed"
"github.com/hajimehoshi/ebiten/v2" "github.com/hajimehoshi/ebiten/v2"
"github.com/hajimehoshi/ebiten/v2/examples/resources/images/blend" "github.com/hajimehoshi/ebiten/v2/examples/resources/images/blend"
"github.com/hajimehoshi/ebiten/v2/text" "github.com/hajimehoshi/ebiten/v2/text/v2"
) )
const ( const (
@ -36,6 +34,10 @@ const (
screenHeight = 800 screenHeight = 800
) )
var (
inconsolataFace = text.NewStdFace(inconsolata.Bold8x16)
)
// mode is a blend mode with description. // mode is a blend mode with description.
type mode struct { type mode struct {
blend ebiten.Blend blend ebiten.Blend
@ -176,17 +178,14 @@ func maxSide(a, b *ebiten.Image) int {
) )
} }
func fixed26_6ToFloat64(x fixed.Int26_6) float64 {
return float64(x>>6) + float64(x&((1<<6)-1))/float64(1<<6)
}
// drawCenteredText is a util function for drawing blend mode description. // drawCenteredText is a util function for drawing blend mode description.
func drawCenteredText(screen *ebiten.Image, cx, cy float64, s string) { func drawCenteredText(screen *ebiten.Image, cx, cy float64, s string) {
advance := font.MeasureString(inconsolata.Bold8x16, s) op := &text.DrawOptions{}
m := inconsolata.Bold8x16.Metrics() op.GeoM.Translate(cx, cy)
height := m.Ascent + m.Descent op.ColorScale.ScaleWithColor(color.Black)
x, y := int(cx-fixed26_6ToFloat64(advance)/2), int(cy-fixed26_6ToFloat64(height)/2+fixed26_6ToFloat64(m.Ascent)) op.PrimaryAlign = text.AlignCenter
text.Draw(screen, s, inconsolata.Bold8x16, x, y, color.Black) op.SecondaryAlign = text.AlignCenter
text.Draw(screen, s, inconsolataFace, op)
} }
func main() { func main() {