Medical_ERP/utils/pdf.go

package utils

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(0.8)

	pdf.SetTextColor(r, g, b)
	pdf.SetX(x)

	pdf.SetY(y)
	pdf.CellWithOption(&gopdf.Rect{W: w, H: h}, text, gopdf.CellOption{Align: align | valign,
		Border: gopdf.Left | gopdf.Right | gopdf.Bottom | gopdf.Top,
	})

}

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

	pdf.SetLineWidth(0.8)
	pdf.SetFillColor(255, 255, 255) //setup fill color
	pdf.RectFromUpperLeftWithStyle(x, y, w, h, "FD")
	lineTexts, _ := pdf.SplitText(text, w)
	if len(lineTexts) == 0 {
		pdf.SetX(x)
		pdf.SetY(y)
		pdf.MultiCell(&gopdf.Rect{W: w, H: h}, "")
		return
	}

	if len(lineTexts) > 1 {
		w -= 4
		lineTexts, _ = pdf.SplitText(text, w)
		x += 4
	} else {
		if align == gopdf.Center {
			textw, _ := pdf.MeasureTextWidth(lineTexts[0])
			x = x + (w / 2) - (textw / 2)
		} else if align == gopdf.Right {
			textw, _ := pdf.MeasureTextWidth(lineTexts[0])
			x = x + w - textw
		}
	}

	pdf.SetTextColor(r, g, b)

	pdf.SetX(x)

	if valign == gopdf.Middle {
		y = y + (h-float64(fontSize*len(lineTexts)))/2
	} else if valign == gopdf.Bottom {
		y = y + h - float64(fontSize*len(lineTexts[0]))
	}

	pdf.SetY(y)
	pdf.MultiCell(&gopdf.Rect{W: w, H: h}, text)

}