Use golang to implement automatic row wrapping tables in pdf

import "/jung-kurt/gofpdf"


type pdfLine struct {
	pdf      *
	h        float64	// The required height	x        float64	// Record the coordinates at the beginning	y        float64	// Record the coordinates at the beginning	style    string		// Style F only fill D only border or DF both	alignStr string		// For its method LCR is the horizontal left, middle and right, and TMBA is the vertical upper, middle, lower and baselines	fontH    float64	// Font height	cells    []pdfCell	// 
}

type pdfCell struct {
	w      float64	// Width	h      float64	//Ride height	txtStr string	// text	lines  int		// Determine how many lines the text will occupy}

func (s *pdfLine) addLine(style string, alignStr string, cells ...pdfCell) {
	 = style
	 = alignStr
	_,  = ()
	// Record the maximum line height required	for _, cell := range cells {
		lines := (, )
		h := float64(len(lines)) * 
		if  < h {
			 = h
		}
		 = len(lines)
		 = append(, cell)
	}
	_, _, _, mbottom := () // Get the current page margin	_, pageh := ()        // Get the current page size	x, y := ()                  // Get the current location	// When the remaining row height of the page is not enough, open a new page	if ()+ > pageh-mbottom {
		()
		y = ()
	}
	 = x
	 = y
	()
}

// Writefunc (s *pdfLine) write() {
	x := 
	y := 
	// Manually record and move coordinates	for _, c := range  {
		usedH := float64() * 
		margin := ( - usedH) / 2.0
		(x, , , , )
		(x, y+margin) // Keep text in the cell with margins		(, , , "", , false)
		x += 
		(x, y)
	}
	// Reset the coordinates to the current position of the next row	(, +)
	// Reset variables	 = nil
	 = 0
}

// Use to generate a table with 4 columns per rowfunc main() {
	pdf := ("P", "mm", "A4", "")
	()
	pdf.AddUTF8Font("NotoSansSC-Regular", "", "src/font/")
	("NotoSansSC-Regular", "", 12)
	myPdf := pdfLine{pdf: pdf}

	width, _ := ()		// Page width	left, _, right, _ := ()	// Left and left margins	usable := width - left - right	// Available page width	_,h := ()	// Font height	tableH := h + 2	// Row height 2mm more margin	tableWidth := usable / 4	// Width of each unit	(233, 233, 233)
	// Table header	("FD", "CM", []pdfCell{
			{w: tableWidth, h: tableH, txtStr: "Table 1"},
			{w: tableWidth, h: tableH, txtStr: "Table 2"},
			{w: tableWidth, h: tableH, txtStr: "Table 3"},
			{w: tableWidth, h: tableH, txtStr: "Table 4"},
		}...)
	// content	("", "CM", []pdfCell{
			{w: tableWidth, h: tableH, txtStr: "Content 1"},
			{w: tableWidth, h: tableH, txtStr: "Suppose there is a very long content here, you can replace it yourself."},
			{w: tableWidth, h: tableH, txtStr: "Content 3"},
			{w: tableWidth, h: tableH, txtStr: "Content 4"},
		}...)
}

	// Add a page	()
	// Load fonts	pdf.AddUTF8Font("NotoSansSC-Regular", "", "src/font/")
	// Set font	("NotoSansSC-Regular", "", 12)

	// Simple cell, receiving parameters are 1. Cell length 2. Row height 3. Text	(cellWeight, h, "my text")
	// Automatically wrap the cell, calling the left side of this method will return to the beginning of the next line	(0, h, "Suppose it is a very long cell")
	// Set the fill color	(233, 233, 233)
	// Specify the format parameter 1. Cell length 2. Row height 3. Text 4. Border form (1 full border, or LTRB represents upper left, lower right, respectively) 5. Cell	// Coordinates after writing (1 starts with the next line and 2 next line of the current coordinate) 6. Method (LCR is the horizontal left, middle, and right, and TMBA is the vertical upper, middle, and middle,	// Lower, baseline) 7. Whether to fill the current grid 8. Connect 9. Connect url	(tableWidth, tableH, "Total Cost", "1", 0, "M", true, 0, "")
	// Insert the picture. The parameters are 1 picture position 2x coordinates 3y coordinates 4 picture width 5 picture height	("src/font/", width-right-25, 5, 25, 0, false, opt, 0, "")