From 4c49a3659cb56369865d431c32f45cc18a123276 Mon Sep 17 00:00:00 2001
From: Florian <boombuler@gmail.com>
Date: Fri, 26 Jan 2018 14:09:49 +0100
Subject: [PATCH] Created Content String (markdown)

---
 Content-String.md | 73 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 Content-String.md

diff --git a/Content-String.md b/Content-String.md
new file mode 100644
index 0000000..b087f38
--- /dev/null
+++ b/Content-String.md
@@ -0,0 +1,73 @@
+To add the content of the barcode to an image below the barcode you can use and extend the following sample code:
+
+```golang
+package main
+
+import (
+	"image"
+	"image/color"
+	"image/draw"
+	"image/png"
+	"os"
+
+	"github.com/boombuler/barcode"
+	"github.com/boombuler/barcode/code128"
+	"golang.org/x/image/font"
+	"golang.org/x/image/font/basicfont"
+	"golang.org/x/image/math/fixed"
+)
+
+func subtitleBarcode(bc barcode.Barcode) image.Image {
+	fontFace := basicfont.Face7x13
+	fontColor := color.RGBA{0, 0, 0, 255}
+	margin := 5 // Space between barcode and text
+
+	// Get the bounds of the string
+	bounds, _ := font.BoundString(fontFace, bc.Content())
+
+	widthTxt := int((bounds.Max.X - bounds.Min.X) / 64)
+	heightTxt := int((bounds.Max.Y - bounds.Min.Y) / 64)
+
+	// calc width and height
+	width := widthTxt
+	if bc.Bounds().Dx() > width {
+		width = bc.Bounds().Dx()
+	}
+	height := heightTxt + bc.Bounds().Dy() + margin
+
+	// create result img
+	img := image.NewRGBA(image.Rect(0, 0, width, height))
+	// draw the barcode
+	draw.Draw(img, image.Rect(0, 0, bc.Bounds().Dx(), bc.Bounds().Dy()), bc, bc.Bounds().Min, draw.Over)
+
+	// TextPt
+	offsetY := bc.Bounds().Dy() + margin - int(bounds.Min.Y/64)
+	offsetX := (width - widthTxt) / 2
+
+	point := fixed.Point26_6{
+		X: fixed.Int26_6(offsetX * 64),
+		Y: fixed.Int26_6(offsetY * 64),
+	}
+
+	d := &font.Drawer{
+		Dst:  img,
+		Src:  image.NewUniform(fontColor),
+		Face: fontFace,
+		Dot:  point,
+	}
+	d.DrawString(bc.Content())
+	return img
+}
+
+func main() {
+	content := "My fancy Barcode"
+	bcImg, _ := code128.Encode(content)
+	scaled, _ := barcode.Scale(bcImg, bcImg.Bounds().Dx(), 80)
+
+	img := subtitleBarcode(scaled)
+
+	f, _ := os.Create("barcode.png")
+	defer f.Close()
+	png.Encode(f, img)
+}
+```
\ No newline at end of file