From 500caaeda74dd9c660279036293f4b2997cf0b03 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Sat, 9 Sep 2017 09:42:37 +0200 Subject: Add vendor --- .../x/image/font/plan9font/example_test.go | 92 ++++++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 vendor/golang.org/x/image/font/plan9font/example_test.go (limited to 'vendor/golang.org/x/image/font/plan9font/example_test.go') diff --git a/vendor/golang.org/x/image/font/plan9font/example_test.go b/vendor/golang.org/x/image/font/plan9font/example_test.go new file mode 100644 index 0000000..c3e8f89 --- /dev/null +++ b/vendor/golang.org/x/image/font/plan9font/example_test.go @@ -0,0 +1,92 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package plan9font_test + +import ( + "image" + "image/draw" + "io/ioutil" + "log" + "os" + "path" + "path/filepath" + + "golang.org/x/image/font" + "golang.org/x/image/font/plan9font" + "golang.org/x/image/math/fixed" +) + +func ExampleParseFont() { + readFile := func(name string) ([]byte, error) { + return ioutil.ReadFile(filepath.FromSlash(path.Join("../testdata/fixed", name))) + } + fontData, err := readFile("unicode.7x13.font") + if err != nil { + log.Fatal(err) + } + face, err := plan9font.ParseFont(fontData, readFile) + if err != nil { + log.Fatal(err) + } + ascent := face.Metrics().Ascent.Ceil() + + dst := image.NewRGBA(image.Rect(0, 0, 4*7, 13)) + draw.Draw(dst, dst.Bounds(), image.Black, image.Point{}, draw.Src) + d := &font.Drawer{ + Dst: dst, + Src: image.White, + Face: face, + Dot: fixed.P(0, ascent), + } + // Draw: + // - U+0053 LATIN CAPITAL LETTER S + // - U+03A3 GREEK CAPITAL LETTER SIGMA + // - U+222B INTEGRAL + // - U+3055 HIRAGANA LETTER SA + // The testdata does not contain the CJK subfont files, so U+3055 HIRAGANA + // LETTER SA (さ) should be rendered as U+FFFD REPLACEMENT CHARACTER (�). + // + // The missing subfont file will trigger an "open + // ../testdata/shinonome/k12.3000: no such file or directory" log message. + // This is expected and can be ignored. + d.DrawString("SΣ∫さ") + + // Convert the dst image to ASCII art. + var out []byte + b := dst.Bounds() + for y := b.Min.Y; y < b.Max.Y; y++ { + out = append(out, '0'+byte(y%10), ' ') + for x := b.Min.X; x < b.Max.X; x++ { + if dst.RGBAAt(x, y).R > 0 { + out = append(out, 'X') + } else { + out = append(out, '.') + } + } + // Highlight the last row before the baseline. Glyphs like 'S' without + // descenders should not affect any pixels whose Y coordinate is >= the + // baseline. + if y == ascent-1 { + out = append(out, '_') + } + out = append(out, '\n') + } + os.Stdout.Write(out) + + // Output: + // 0 ..................X......... + // 1 .................X.X........ + // 2 .XXXX..XXXXXX....X.....XXX.. + // 3 X....X.X.........X....XX.XX. + // 4 X.......X........X....X.X.X. + // 5 X........X.......X....XXX.X. + // 6 .XXXX.....X......X....XX.XX. + // 7 .....X...X.......X....XX.XX. + // 8 .....X..X........X....XXXXX. + // 9 X....X.X.........X....XX.XX. + // 0 .XXXX..XXXXXX....X.....XXX.._ + // 1 ...............X.X.......... + // 2 ................X........... +} -- cgit v1.2.3