Fix: color use rgba

README.md

@@ -6,7 +6,6 @@ package main
 import (
 	"bytes"
 	"fmt"
-	"image"
 	"image/color"
 	"io"
 	"os"
@@ -17,7 +16,7 @@ import (
 func main() {
 	pic := text2picture.NewPictureWithBackGround(text2picture.NewWhiteBackGround(500, 100), 320, 10, 5)
 	pic.DrawWithBlack("test 123\n4321...")
-	pic.DrawWithColor(0x60f2, "test color ... ")
+	pic.DrawWithColor(color.RGBA{255, 0, 0, 255}, "test color ... ")
 	pic.PointOffset(0, 5)
 	pic.DrawWithBlack("test offset\n")
 	f, err := os.OpenFile("./test.png", os.O_CREATE|os.O_WRONLY|os.O_TRUNC, os.ModePerm)

backGround.go

@@ -6,9 +6,9 @@ import (
 	"image/draw"
 )
 
-func NewBackGroundWithColor(width, height int, _16bit_color uint16) *image.RGBA {
+func NewBackGroundWithColor(width, height int, color color.RGBA) *image.RGBA {
 	rgba := image.NewRGBA(image.Rect(0, 0, width, height))
-	draw.Draw(rgba, rgba.Bounds(), image.NewUniform(color.Gray16{_16bit_color}), image.Point{}, draw.Src)
+	draw.Draw(rgba, rgba.Bounds(), image.NewUniform(color), image.Point{}, draw.Src)
 	return rgba
 }
 

draw.go

@@ -9,9 +9,9 @@ import (
 	"golang.org/x/image/math/fixed"
 )
 
-func (p *picture) DrawWithColor(_16bit_color uint16, text string) *picture {
+func (p *picture) DrawWithColor(color color.RGBA, text string) *picture {
 	// font color
-	p.c.SetSrc(image.NewUniform(color.Gray16{_16bit_color}))
+	p.c.SetSrc(image.NewUniform(color))
 
 	face := truetype.NewFace(p.font, &truetype.Options{Size: p.fontSize, DPI: p.dpi})