1 files changed, 89 insertions, 0 deletions
diff --git a/vendor/github.com/golang/freetype/example/truetype/main.go b/vendor/github.com/golang/freetype/example/truetype/main.go
new file mode 100644
index 000000000..e7db2d0ca
--- /dev/null
+++ b/vendor/github.com/golang/freetype/example/truetype/main.go
@@ -0,0 +1,89 @@
+// 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 (
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"log"
+
+	"github.com/golang/freetype/truetype"
+	"golang.org/x/image/font"
+	"golang.org/x/image/math/fixed"
+)
+
+var fontfile = flag.String("fontfile", "../../testdata/luxisr.ttf", "filename of the ttf font")
+
+func printBounds(b fixed.Rectangle26_6) {
+	fmt.Printf("Min.X:%d Min.Y:%d Max.X:%d Max.Y:%d\n", b.Min.X, b.Min.Y, b.Max.X, b.Max.Y)
+}
+
+func printGlyph(g *truetype.GlyphBuf) {
+	printBounds(g.Bounds)
+	fmt.Print("Points:\n---\n")
+	e := 0
+	for i, p := range g.Points {
+		fmt.Printf("%4d, %4d", p.X, p.Y)
+		if p.Flags&0x01 != 0 {
+			fmt.Print("  on\n")
+		} else {
+			fmt.Print("  off\n")
+		}
+		if i+1 == int(g.Ends[e]) {
+			fmt.Print("---\n")
+			e++
+		}
+	}
+}
+
+func main() {
+	flag.Parse()
+	fmt.Printf("Loading fontfile %q\n", *fontfile)
+	b, err := ioutil.ReadFile(*fontfile)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	f, err := truetype.Parse(b)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	fupe := fixed.Int26_6(f.FUnitsPerEm())
+	printBounds(f.Bounds(fupe))
+	fmt.Printf("FUnitsPerEm:%d\n\n", fupe)
+
+	c0, c1 := 'A', 'V'
+
+	i0 := f.Index(c0)
+	hm := f.HMetric(fupe, i0)
+	g := &truetype.GlyphBuf{}
+	err = g.Load(f, fupe, i0, font.HintingNone)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	fmt.Printf("'%c' glyph\n", c0)
+	fmt.Printf("AdvanceWidth:%d LeftSideBearing:%d\n", hm.AdvanceWidth, hm.LeftSideBearing)
+	printGlyph(g)
+	i1 := f.Index(c1)
+	fmt.Printf("\n'%c', '%c' Kern:%d\n", c0, c1, f.Kern(fupe, i0, i1))
+
+	fmt.Printf("\nThe numbers above are in FUnits.\n" +
+		"The numbers below are in 26.6 fixed point pixels, at 12pt and 72dpi.\n\n")
+	a := truetype.NewFace(f, &truetype.Options{
+		Size: 12,
+		DPI:  72,
+	})
+	fmt.Printf("%#v\n", a.Metrics())
+}