2af394dab9
just version 2. The FTL (Freetype Licence) is still available. This matches the original Freetype library (written in C). This only expands and does not further restrict the licensing options available to users of the freetype-go library. R=adg CC=golang-dev http://codereview.appspot.com/1731049
72 lines
1.6 KiB
Go
72 lines
1.6 KiB
Go
// Copyright 2010 The Freetype-Go Authors. All rights reserved.
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// Use of this source code is governed by your choice of either the
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// FreeType License or the GNU General Public License version 2 (or
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// any later version), both of which can be found in the LICENSE file.
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package main
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import (
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"freetype-go.googlecode.com/hg/freetype/truetype"
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)
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var fontfile = flag.String("fontfile", "../../luxi-fonts/luxisr.ttf", "filename of the ttf font")
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func printBounds(b truetype.Bounds) {
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fmt.Printf("XMin:%d YMin:%d XMax:%d YMax:%d\n", b.XMin, b.YMin, b.XMax, b.YMax)
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}
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func printGlyph(g *truetype.GlyphBuf) {
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printBounds(g.B)
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fmt.Print("Points:\n---\n")
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e := 0
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for i, p := range g.Point {
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fmt.Printf("%4d, %4d", p.X, p.Y)
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if p.Flags&0x01 != 0 {
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fmt.Print(" on\n")
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} else {
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fmt.Print(" off\n")
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}
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if i+1 == int(g.End[e]) {
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fmt.Print("---\n")
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e++
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}
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}
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}
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func main() {
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flag.Parse()
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fmt.Printf("Loading fontfile %q\n", *fontfile)
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b, err := ioutil.ReadFile(*fontfile)
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if err != nil {
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log.Stderr(err)
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return
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}
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font, err := truetype.Parse(b)
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if err != nil {
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log.Stderr(err)
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return
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}
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printBounds(font.Bounds())
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fmt.Printf("UnitsPerEm:%d\n\n", font.UnitsPerEm())
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c0, c1 := 'A', 'V'
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i0 := font.Index(c0)
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hm := font.HMetric(i0)
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g := truetype.NewGlyphBuf()
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err = g.Load(font, i0)
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if err != nil {
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log.Stderr(err)
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return
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}
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fmt.Printf("'%c' glyph\n", c0)
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fmt.Printf("AdvanceWidth:%d LeftSideBearing:%d\n", hm.AdvanceWidth, hm.LeftSideBearing)
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printGlyph(g)
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i1 := font.Index(c1)
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fmt.Printf("\n'%c', '%c' Kerning:%d\n", c0, c1, font.Kerning(i0, i1))
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}
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