1 files changed, 150 insertions, 0 deletions
diff --git a/vendor/github.com/golang/freetype/example/freetype/main.go b/vendor/github.com/golang/freetype/example/freetype/main.go
new file mode 100644
index 000000000..dfbde9a2f
--- /dev/null
+++ b/vendor/github.com/golang/freetype/example/freetype/main.go
@@ -0,0 +1,150 @@
+// Copyright 2010 The Freetype-Go Authors. All rights reserved.
+// Use of this source code is governed by your choice of either the
+// FreeType License or the GNU General Public License version 2 (or
+// any later version), both of which can be found in the LICENSE file.
+
+// +build example
+//
+// This build tag means that "go install github.com/golang/freetype/..."
+// doesn't install this example program. Use "go run main.go" to run it or "go
+// install -tags=example" to install it.
+
+package main
+
+import (
+	"bufio"
+	"flag"
+	"fmt"
+	"image"
+	"image/color"
+	"image/draw"
+	"image/png"
+	"io/ioutil"
+	"log"
+	"os"
+
+	"github.com/golang/freetype"
+	"golang.org/x/image/font"
+)
+
+var (
+	dpi      = flag.Float64("dpi", 72, "screen resolution in Dots Per Inch")
+	fontfile = flag.String("fontfile", "../../testdata/luxisr.ttf", "filename of the ttf font")
+	hinting  = flag.String("hinting", "none", "none | full")
+	size     = flag.Float64("size", 12, "font size in points")
+	spacing  = flag.Float64("spacing", 1.5, "line spacing (e.g. 2 means double spaced)")
+	wonb     = flag.Bool("whiteonblack", false, "white text on a black background")
+)
+
+var text = []string{
+	"’Twas brillig, and the slithy toves",
+	"Did gyre and gimble in the wabe;",
+	"All mimsy were the borogoves,",
+	"And the mome raths outgrabe.",
+	"",
+	"“Beware the Jabberwock, my son!",
+	"The jaws that bite, the claws that catch!",
+	"Beware the Jubjub bird, and shun",
+	"The frumious Bandersnatch!”",
+	"",
+	"He took his vorpal sword in hand:",
+	"Long time the manxome foe he sought—",
+	"So rested he by the Tumtum tree,",
+	"And stood awhile in thought.",
+	"",
+	"And as in uffish thought he stood,",
+	"The Jabberwock, with eyes of flame,",
+	"Came whiffling through the tulgey wood,",
+	"And burbled as it came!",
+	"",
+	"One, two! One, two! and through and through",
+	"The vorpal blade went snicker-snack!",
+	"He left it dead, and with its head",
+	"He went galumphing back.",
+	"",
+	"“And hast thou slain the Jabberwock?",
+	"Come to my arms, my beamish boy!",
+	"O frabjous day! Callooh! Callay!”",
+	"He chortled in his joy.",
+	"",
+	"’Twas brillig, and the slithy toves",
+	"Did gyre and gimble in the wabe;",
+	"All mimsy were the borogoves,",
+	"And the mome raths outgrabe.",
+}
+
+func main() {
+	flag.Parse()
+
+	// Read the font data.
+	fontBytes, err := ioutil.ReadFile(*fontfile)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	f, err := freetype.ParseFont(fontBytes)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+
+	// Initialize the context.
+	fg, bg := image.Black, image.White
+	ruler := color.RGBA{0xdd, 0xdd, 0xdd, 0xff}
+	if *wonb {
+		fg, bg = image.White, image.Black
+		ruler = color.RGBA{0x22, 0x22, 0x22, 0xff}
+	}
+	rgba := image.NewRGBA(image.Rect(0, 0, 640, 480))
+	draw.Draw(rgba, rgba.Bounds(), bg, image.ZP, draw.Src)
+	c := freetype.NewContext()
+	c.SetDPI(*dpi)
+	c.SetFont(f)
+	c.SetFontSize(*size)
+	c.SetClip(rgba.Bounds())
+	c.SetDst(rgba)
+	c.SetSrc(fg)
+	switch *hinting {
+	default:
+		c.SetHinting(font.HintingNone)
+	case "full":
+		c.SetHinting(font.HintingFull)
+	}
+
+	// Draw the guidelines.
+	for i := 0; i < 200; i++ {
+		rgba.Set(10, 10+i, ruler)
+		rgba.Set(10+i, 10, ruler)
+	}
+
+	// Draw the text.
+	pt := freetype.Pt(10, 10+int(c.PointToFixed(*size)>>6))
+	for _, s := range text {
+		_, err = c.DrawString(s, pt)
+		if err != nil {
+			log.Println(err)
+			return
+		}
+		pt.Y += c.PointToFixed(*size * *spacing)
+	}
+
+	// Save that RGBA image to disk.
+	outFile, err := os.Create("out.png")
+	if err != nil {
+		log.Println(err)
+		os.Exit(1)
+	}
+	defer outFile.Close()
+	b := bufio.NewWriter(outFile)
+	err = png.Encode(b, rgba)
+	if err != nil {
+		log.Println(err)
+		os.Exit(1)
+	}
+	err = b.Flush()
+	if err != nil {
+		log.Println(err)
+		os.Exit(1)
+	}
+	fmt.Println("Wrote out.png OK.")
+}