ERP_libs/lib/GoPDF.go

package lib

import "github.com/signintech/gopdf"

const (
	ValignTop    = 1
	ValignMiddle = 2
	ValignBottom = 3
)

const (
	AlignLeft   = 4
	AlignCenter = 5
	AlignRight  = 6
)

func RectFillColor(pdf *gopdf.GoPdf,
	text string,
	fontSize int,
	x, y, w, h float64,
	r, g, b uint8,
	align, valign int,
) {


	pdf.SetLineWidth(0.1)
	pdf.SetFillColor(r, g, b) //setup fill color
	pdf.SetLineType("")       // 线条样式
	pdf.RectFromUpperLeftWithStyle(x, y, w, h, "FD")
	pdf.SetFillColor(0, 0, 0)

	if align == AlignCenter {
		textw, _ := pdf.MeasureTextWidth(text)
		x = x + (w / 2) - (textw / 2)
	} else if align == AlignRight {
		textw, _ := pdf.MeasureTextWidth(text)
		x = x + w - textw
	}

	pdf.SetX(x)

	if valign == ValignMiddle {
		y = y + (h / 2) - (float64(fontSize) / 2)
	} else if valign == ValignBottom {
		y = y + h - float64(fontSize)
	}

	pdf.SetY(y)
	pdf.Cell(nil, text)
}