page.go

package davepdf

import "fmt"

type PdfPage struct {
	id           int
	parent       *PdfPageTree
	instructions *PdfInstructions // to be compiled into contents below
	contents     *PdfContents
}

func (pdf *Pdf) newPage() *PdfPage {
	page := &PdfPage{}

	pdf.newObjId()
	page.id = pdf.n

	page.parent = pdf.pageTree
	page.contents = pdf.newContents()
	page.instructions = pdf.newInstructions()

	pdf.pageTree.pages = append(pdf.pageTree.pages, page)

	return page
}

func (pdf *Pdf) writePage() {
	for _, page := range pdf.pageTree.pages {
		pdf.newObj(page.id)
		pdf.outln("<<")
		pdf.outln("  /Type /Page")
		pdf.outln("  /MediaBox [0 0 612 792]")
		pdf.outln(fmt.Sprintf("  /Parent %d 0 R", pdf.pageTree.id))
		pdf.outln(fmt.Sprintf("  /Contents %d 0 R", page.contents.id))
		pdf.outln(fmt.Sprintf("  /Resources %d 0 R", pdf.resources.id))
		pdf.outln(">>")
		pdf.outln("endobj\n")
	}
}