Erweiterung von Kurt Jungs gopdf, das leider nicht weiterentwickelt wird https://github.com/jung-kurt/gofpdf
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/*
* Copyright (c) 2013-2015 Kurt Jung (Gmail: kurt.w.jung)
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package gofpdf_test
import (
"bytes"
"fmt"
"github.com/jung-kurt/gofpdf"
"github.com/jung-kurt/gofpdf/internal/example"
)
func ExampleTtfParse() {
ttf, err := gofpdf.TtfParse(example.FontDir() + "/calligra.ttf")
if err == nil {
fmt.Printf("Postscript name: %s\n", ttf.PostScriptName)
fmt.Printf("unitsPerEm: %8d\n", ttf.UnitsPerEm)
fmt.Printf("Xmin: %8d\n", ttf.Xmin)
fmt.Printf("Ymin: %8d\n", ttf.Ymin)
fmt.Printf("Xmax: %8d\n", ttf.Xmax)
fmt.Printf("Ymax: %8d\n", ttf.Ymax)
} else {
fmt.Printf("%s\n", err)
}
// Output:
// Postscript name: CalligrapherRegular
// unitsPerEm: 1000
// Xmin: -173
// Ymin: -234
// Xmax: 1328
// Ymax: 899
}
func hexStr(s string) string {
var b bytes.Buffer
b.WriteString("\"")
for _, ch := range []byte(s) {
b.WriteString(fmt.Sprintf("\\x%02x", ch))
}
b.WriteString("\":")
return b.String()
}
func ExampleFpdf_GetStringWidth() {
pdf := gofpdf.New("", "", "", example.FontDir())
pdf.SetFont("Helvetica", "", 12)
pdf.AddPage()
for _, s := range []string{"Hello", "世界", "\xe7a va?"} {
fmt.Printf("%-32s width %5.2f, bytes %2d, runes %2d\n",
hexStr(s), pdf.GetStringWidth(s), len(s), len([]rune(s)))
if pdf.Err() {
fmt.Println(pdf.Error())
}
}
pdf.Close()
// Output:
// "\x48\x65\x6c\x6c\x6f": width 9.64, bytes 5, runes 5
// "\xe4\xb8\x96\xe7\x95\x8c": width 13.95, bytes 6, runes 2
// "\xe7\x61\x20\x76\x61\x3f": width 12.47, bytes 6, runes 6
}