diff options
| -rw-r--r-- | fpdf.go | 11 | ||||
| -rw-r--r-- | fpdf_test.go | 31 |
2 files changed, 38 insertions, 4 deletions
@@ -313,10 +313,13 @@ func (f *Fpdf) SetFontLocation(fontDirStr string) { f.fontpath = fontDirStr } -// SetFontLoader sets a loader used to load font files (.json and .z) from -// arbitrary locations. If a font loader has been specified, Fpdf first tries -// to load files using the font loader. If the loading files Fpdf tries to -// load the font from the configured fonts directory (see SetFontLocation). +// SetFontLoader sets a loader used to read font files (.json and .z) from an +// arbitrary source. If a font loader has been specified, it is used to load +// the named font resources when AddFont() is called. If this operation fails, +// an attempt is made to load the resources from the configured font directory +// (see SetFontLocation()). +// +// See tutorial 29 for an example of this method. func (f *Fpdf) SetFontLoader(loader FontLoader) { f.fontLoader = loader } diff --git a/fpdf_test.go b/fpdf_test.go index bb69569..3439f91 100644 --- a/fpdf_test.go +++ b/fpdf_test.go @@ -18,8 +18,10 @@ package gofpdf_test import ( "bufio" + "bytes" "fmt" "github.com/jung-kurt/gofpdf" + "io" "io/ioutil" "math" "net/http" @@ -101,6 +103,19 @@ func textFile(fileStr string) string { return filepath.Join(cnTextDir, fileStr) } +type fontResourceType struct { +} + +func (f fontResourceType) Open(name string) (rdr io.Reader, err error) { + var buf []byte + buf, err = ioutil.ReadFile(fontFile(name)) + if err == nil { + rdr = bytes.NewReader(buf) + fmt.Printf("Generalized font loader reading %s\n", name) + } + return +} + // Convert 'ABCDEFG' to, for example, 'A,BCD,EFG' func strDelimit(str string, sepstr string, sepcount int) string { pos := len(str) - sepcount @@ -1427,3 +1442,19 @@ func ExampleFpdf_tutorial28() { // Successfully generated pdf/tutorial28.pdf } + +// Non-standard font using generalized font loader +func ExampleFpdf_tutorial29() { + var fr fontResourceType + pdf := gofpdf.New("P", "mm", "A4", cnFontDir) + pdf.SetFontLoader(fr) + pdf.AddFont("Calligrapher", "", "calligra.json") + pdf.AddPage() + pdf.SetFont("Calligrapher", "", 35) + pdf.Cell(0, 10, "Enjoy new fonts with FPDF!") + pdf.OutputAndClose(docWriter(pdf, 29)) + // Output: + // Generalized font loader reading calligra.json + // Generalized font loader reading calligra.z + // Successfully generated pdf/tutorial29.pdf +} |