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Diffstat (limited to 'Godeps/_workspace/src/code.google.com/p/freetype-go/example/freetype')
-rw-r--r-- | Godeps/_workspace/src/code.google.com/p/freetype-go/example/freetype/main.go | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/code.google.com/p/freetype-go/example/freetype/main.go b/Godeps/_workspace/src/code.google.com/p/freetype-go/example/freetype/main.go new file mode 100644 index 000000000..83b8c3e5e --- /dev/null +++ b/Godeps/_workspace/src/code.google.com/p/freetype-go/example/freetype/main.go @@ -0,0 +1,143 @@ +// 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. + +package main + +import ( + "bufio" + "flag" + "fmt" + "image" + "image/color" + "image/draw" + "image/png" + "io/ioutil" + "log" + "os" + + "code.google.com/p/freetype-go/freetype" +) + +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 + } + font, 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(font) + c.SetFontSize(*size) + c.SetClip(rgba.Bounds()) + c.SetDst(rgba) + c.SetSrc(fg) + switch *hinting { + default: + c.SetHinting(freetype.NoHinting) + case "full": + c.SetHinting(freetype.FullHinting) + } + + // 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.PointToFix32(*size)>>8)) + for _, s := range text { + _, err = c.DrawString(s, pt) + if err != nil { + log.Println(err) + return + } + pt.Y += c.PointToFix32(*size * *spacing) + } + + // Save that RGBA image to disk. + f, err := os.Create("out.png") + if err != nil { + log.Println(err) + os.Exit(1) + } + defer f.Close() + b := bufio.NewWriter(f) + 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.") +} |