1 package main

     2 

     3 import (

     4 	"fmt"

     5 

     6 	"github.com/jung-kurt/gofpdf"

     7 	"github.com/pkg/errors"

     8 

     9 	"mikael/takuzu"

    10 )

    11 

    12 func tak2pdf(takuzu *takuzu.Takuzu, pdfFileName string) error {

    13 

    14 	if pdfFileName == "" {

    15 		return errors.New("no PDF file name")

    16 	}

    17 

    18 	size := takuzu.Size

    19 

    20 	pdf := gofpdf.New("P", "mm", "A4", "")

    21 	pdf.SetFont("Arial", "", 14)

    22 

    23 	basicTable := func() {

    24 

    25 		for ln, l := range takuzu.Board {

    26 			for cn, cell := range l {

    27 				border := "" // empty, "1", "L", "T", "R" and "B"

    28 				if ln == 0 {

    29 					border += "T"

    30 				}

    31 				if cn == 0 {

    32 					border += "L"

    33 				}

    34 				if ln+1 == size {

    35 					border += "B"

    36 				}

    37 				if cn+1 == size {

    38 					border += "R"

    39 				}

    40 				align := "CM" // horiz=Center vert=Middle

    41 				if cell.Defined {

    42 					pdf.CellFormat(8, 8, fmt.Sprint(cell.Value), border, 0, align, false, 0, "")

    43 				} else {

    44 					pdf.CellFormat(8, 8, ".", border, 0, align, false, 0, "")

    45 				}

    46 			}

    47 			pdf.Ln(-1)

    48 		}

    49 	}

    50 

    51 	pdf.AddPage()

    52 	basicTable()

    53 	if err := pdf.OutputFileAndClose(pdfFileName); err != nil {

    54 		return err

    55 	}

    56 

    57 	return nil

    58 }