uikit core graphics in pdfkit - uikit

Question

I'm trying to develop a graphic for my pdf but, this is the structure:
private func addRowTitle(drawContext: CGContext, offsetY: CGFloat) {
drawContext.saveGState()
drawContext.setLineWidth(2.0)
let attributes = [
NSAttributedString.Key.font: UIFont.systemFont(ofSize: 15),
NSAttributedString.Key.foregroundColor : UIColor.gray
]
drawContext.move(to: CGPoint(x: 0, y: offsetY + 20))
drawContext.addLine(to: CGPoint(x: pageRect.width, y: offsetY + 20))
drawContext.strokePath()
drawContext.restoreGState()
let rowTitles: [String] = ["Da", "A", "Annulla", "Giorni"]
let tabWidth = pageRect.width / CGFloat(4)
for titleIndex in 0..<rowTitles.count {
print("count \(rowTitles[titleIndex])")
let tabX = CGFloat(titleIndex) * tabWidth
let textRect = CGRect(x: tabX + 40, y: offsetY + 20, // top margin
width: pageRect.width ,height: 15) //pageRect.width - 40 ,height: 40
rowTitles[titleIndex].draw(in: textRect, withAttributes: attributes)
}
drawContext.move(to: CGPoint(x: 0, y: offsetY + 40))
drawContext.addLine(to: CGPoint(x: pageRect.width, y: offsetY + 40))
drawContext.strokePath()
drawContext.restoreGState()
}
and this is the second function involved
private func addRowComunication(drawContext: CGContext, offsetY: CGFloat) {
drawContext.saveGState()
drawContext.setLineWidth(2.0)
let attributes = [
NSAttributedString.Key.font: UIFont.systemFont(ofSize: 12),
NSAttributedString.Key.foregroundColor : UIColor.black
]
let rowTitles: [String] = ["25/07/2022", "27/07/2022", "10", "30"]
let tabWidth = pageRect.width / CGFloat(4)
for titleIndex in 0..<rowTitles.count {
print("count \(rowTitles[titleIndex])")
let tabX = CGFloat(titleIndex) * tabWidth
let textRect = CGRect(x: tabX + 40, y: offsetY, // top margin
width: pageRect.width ,height: 12) //pageRect.width - 40 ,height: 40
rowTitles[titleIndex].draw(in: textRect, withAttributes: attributes)
}
drawContext.move(to: CGPoint(x: 0, y: offsetY))
drawContext.addLine(to: CGPoint(x: pageRect.width, y: offsetY))
drawContext.strokePath()
drawContext.restoreGState()
}
and finally I call them from
extension PdfCreator {
func pdfData(title : String, body: String) -> Data? {
if let renderer = self.renderer {
let data = renderer.pdfData { context in
context.beginPage()
addTitle(title: title)
//addBody(body: body)
let context = context.cgContext
addWorkerRow(workerName: "Lavoratore 1", workerCF: "RGNNCL)%H!$A$%)V", offsetY: 90)
addRowTitle(drawContext: context, offsetY: 90)
addRowComunication(drawContext: context, offsetY: 100)
}
return data
}
return nil
}
}
the point is I don't understand why if I call both the functions
addRowTitle
addRowComunication
I obtain a table like the attached photo.. with a lot of white space and text is flipped for removing white space in offset I have to put 650 but the text stay flipped. I expect with a offset of 100 to be under the top row
thanks