diff options
Diffstat (limited to 'pdf.go')
| -rw-r--r-- | pdf.go | 24 |
1 files changed, 17 insertions, 7 deletions
@@ -1,6 +1,8 @@ package bookpipeline import ( + "bytes" + "compress/zlib" "errors" "fmt" "html" @@ -27,14 +29,25 @@ type Fpdf struct { } // Setup creates a new PDF with appropriate settings and fonts -// TODO: find a font that's closer to the average dimensions of the -// text we're dealing with -// TODO: once we have a good font, embed it in the binary as bytes func (p *Fpdf) Setup() error { p.fpdf = gofpdf.New("P", "pt", "A4", "") + // Even though it's invisible, we need to add a font which can do // UTF-8 so that text renders correctly. - p.fpdf.AddUTF8Font("dejavu", "", "DejaVuSansCondensed.ttf") + // We embed the font directly in the binary, compressed with zlib + c := bytes.NewBuffer(dejavucondensed) + r, err := zlib.NewReader(c) + defer r.Close() + if err != nil { + return errors.New(fmt.Sprintf("Could not open compressed font", err)) + } + var b bytes.Buffer + _, err = b.ReadFrom(r) + if err != nil { + return errors.New(fmt.Sprintf("Could not read compressed font", err)) + } + p.fpdf.AddUTF8FontFromBytes("dejavu", "", b.Bytes()) + p.fpdf.SetFont("dejavu", "", 10) p.fpdf.SetAutoPageBreak(false, float64(0)) return p.fpdf.Error() @@ -47,7 +60,6 @@ func (p *Fpdf) AddPage(imgpath, hocrpath string) error { if err != nil { return errors.New(fmt.Sprintf("Could not read file %s: %v", hocrpath, err)) } - // TODO: change hocr.Parse to take a Reader rather than []byte h, err := hocr.Parse(file) if err != nil { return errors.New(fmt.Sprintf("Could not parse hocr in file %s: %v", hocrpath, err)) @@ -65,8 +77,6 @@ func (p *Fpdf) AddPage(imgpath, hocrpath string) error { b := img.Bounds() p.fpdf.AddPageFormat("P", gofpdf.SizeType{Wd: pxToPt(b.Dx()), Ht: pxToPt(b.Dy())}) - // TODO: check for errors in pdf as going through - _ = p.fpdf.RegisterImageOptions(imgpath, gofpdf.ImageOptions{}) p.fpdf.ImageOptions(imgpath, 0, 0, pxToPt(b.Dx()), pxToPt(b.Dy()), false, gofpdf.ImageOptions{}, 0, "") |