Fix bug in alternated background

internal/examples/billing/main.go

@@ -0,0 +1,204 @@
+package main
+
+import (
+	"fmt"
+	"github.com/johnfercher/maroto/pkg/color"
+	"github.com/johnfercher/maroto/pkg/consts"
+	"github.com/johnfercher/maroto/pkg/pdf"
+	"github.com/johnfercher/maroto/pkg/props"
+	"os"
+	"time"
+)
+
+func main() {
+	begin := time.Now()
+
+	darkGrayColor := color.Color{
+		Red:   144,
+		Green: 144,
+		Blue:  144,
+	}
+
+	grayColor := color.Color{
+		Red:   200,
+		Green: 200,
+		Blue:  200,
+	}
+
+	whiteColor := color.NewWhite()
+
+	m := pdf.NewMaroto(consts.Portrait, consts.A4)
+	m.SetPageMargins(10, 15, 10)
+	//m.SetBorder(true)
+
+	m.RegisterHeader(func() {
+		m.Row(20, func() {
+			m.Col(func() {
+				_ = m.FileImage("internal/assets/images/biplane.jpg", props.Rect{
+					Center:  true,
+					Percent: 80,
+				})
+			})
+			m.ColSpaces(2)
+			m.Col(func() {
+				m.Text("AnyCompany Name Inc. 851 Any Street Name, Suite 120, Any City, CA 45123.", props.Text{
+					Top:         4,
+					Size:        8,
+					Align:       consts.Right,
+					Extrapolate: false,
+				})
+				m.Text("Tel: 55 024 12345-1234", props.Text{
+					Top:   16,
+					Style: consts.BoldItalic,
+					Size:  8,
+					Align: consts.Right,
+				})
+				m.Text("www.mycompany.com", props.Text{
+					Top:   19,
+					Style: consts.BoldItalic,
+					Size:  8,
+					Align: consts.Right,
+				})
+			})
+		})
+		m.Row(5, func() {
+			m.ColSpace()
+		})
+	})
+
+	m.RegisterFooter(func() {
+		m.Row(20, func() {
+			m.Col(func() {
+				m.Text("Tel: 55 024 12345-1234", props.Text{
+					Top:   13,
+					Style: consts.BoldItalic,
+					Size:  8,
+					Align: consts.Left,
+				})
+				m.Text("www.mycompany.com", props.Text{
+					Top:   16,
+					Style: consts.BoldItalic,
+					Size:  8,
+					Align: consts.Left,
+				})
+			})
+		})
+	})
+
+	m.Row(10, func() {
+		m.Col(func() {
+			m.Text("Invoice ABC123456789", props.Text{
+				Top:   6,
+				Style: consts.Bold,
+				Align: consts.Center,
+			})
+		})
+	})
+
+	m.SetBackgroundColor(darkGrayColor)
+	m.Row(7, func() {
+		m.Col(func() {
+			m.Text("Transactions", props.Text{
+				Top:   4.5,
+				Size:  9,
+				Style: consts.Bold,
+				Align: consts.Center,
+			})
+		})
+		m.ColSpaces(3)
+	})
+	m.SetBackgroundColor(whiteColor)
+
+	header := []string{"", "Product", "Quantity", "Price"}
+	contents := [][]string{
+		{"", "Swamp", "12", "R$ 4,00"},
+		{"", "Sorin, A Planeswalker", "4", "R$ 90,00"},
+		{"", "Tassa", "4", "R$ 30,00"},
+		{"", "Skinrender", "4", "R$ 9,00"},
+		{"", "Island", "12", "R$ 4,00"},
+		{"", "Mountain", "12", "R$ 4,00"},
+		{"", "Plain", "12", "R$ 4,00"},
+		{"", "Black Lotus", "1", "R$ 1.000,00"},
+		{"", "Time Walk", "1", "R$ 1.000,00"},
+		{"", "Emberclave", "4", "R$ 44,00"},
+		{"", "Anax", "4", "R$ 32,00"},
+		{"", "Murderous Rider", "4", "R$ 22,00"},
+		{"", "Gray Merchant of Asphodel", "4", "R$ 2,00"},
+		{"", "Ajani's Pridemate", "4", "R$ 2,00"},
+		{"", "Renan, Chatuba", "4", "R$ 19,00"},
+		{"", "Tymarett", "4", "R$ 13,00"},
+		{"", "Doom Blade", "4", "R$ 5,00"},
+		{"", "Dark Lord", "3", "R$ 7,00"},
+		{"", "Memory of Thanatos", "3", "R$ 32,00"},
+		{"", "Poring", "4", "R$ 1,00"},
+		{"", "Deviling", "4", "R$ 99,00"},
+		{"", "Seiya", "4", "R$ 45,00"},
+		{"", "Harry Potter", "4", "R$ 62,00"},
+		{"", "Goku", "4", "R$ 77,00"},
+		{"", "Phreoni", "4", "R$ 22,00"},
+		{"", "Katheryn High Wizard", "4", "R$ 25,00"},
+		{"", "Lord Seyren", "4", "R$ 55,00"},
+	}
+
+	m.TableList(header, contents, props.TableList{
+		HeaderProp: props.Font{
+			Size: 9,
+		},
+		ContentProp: props.Font{
+			Size: 8,
+		},
+		Align:                consts.Center,
+		AlternatedBackground: &grayColor,
+		HeaderContentSpace:   1,
+		Line:                 false,
+	})
+
+	m.Row(20, func() {
+		m.ColSpaces(2)
+		m.Col(func() {
+			m.Text("Total:", props.Text{
+				Top:   5,
+				Style: consts.Bold,
+				Size:  8,
+				Align: consts.Right,
+			})
+		})
+		m.Col(func() {
+			m.Text("R$ 2.567,00", props.Text{
+				Top:   5,
+				Style: consts.Bold,
+				Size:  8,
+				Align: consts.Center,
+			})
+		})
+	})
+
+	m.Row(15, func() {
+		m.Col(func() {
+			_ = m.Barcode("5123.151231.512314.1251251.123215", props.Barcode{
+				Percent: 0,
+				Proportion: props.Proportion{
+					Width:  20,
+					Height: 2,
+				},
+			})
+			m.Text("5123.151231.512314.1251251.123215", props.Text{
+				Top:    12,
+				Family: "",
+				Style:  consts.Bold,
+				Size:   9,
+				Align:  consts.Center,
+			})
+		})
+		m.ColSpace()
+	})
+
+	err := m.OutputFileAndClose("internal/examples/pdfs/billing.pdf")
+	if err != nil {
+		fmt.Println("Could not save PDF:", err)
+		os.Exit(1)
+	}
+
+	end := time.Now()
+	fmt.Println(end.Sub(begin))
+}

internal/examples/sample1/main.go

@@ -15,6 +15,7 @@ import (
 func main() {
 	begin := time.Now()
 	m := pdf.NewMaroto(consts.Portrait, consts.A4)
+	m.SetPageMargins(10, 15, 10)
 	//m.SetBorder(true)
 
 	byteSlices, err := ioutil.ReadFile("internal/assets/images/biplane.jpg")
@@ -204,9 +205,6 @@ func getSmallContent() ([]string, [][]string) {
 	contents = append(contents, []string{"São Paulo", "Rio de Janeiro", "", "R$ 31,00"})
 	contents = append(contents, []string{"São Carlos", "Petrópolis", "", "R$ 42,00"})
 	contents = append(contents, []string{"Florianópolis", "Osasco", "", "R$ 19,00"})
-	contents = append(contents, []string{"Osasco", "São Paulo", "", "R$ 7,00"})
-	contents = append(contents, []string{"Congonhas", "Fortaleza", "", "R$ 113,00"})
-	contents = append(contents, []string{"Natal", "Santo André", "", "R$ 198,00"})
 	contents = append(contents, []string{"Rio Grande do Norte", "Sorocaba", "", "R$ 42,00"})
 	contents = append(contents, []string{"Campinas", "Recife", "", "R$ 58,00"})
 	contents = append(contents, []string{"Florianópolis", "Osasco", "", "R$ 21,00"})

pkg/pdf/pdf.go

@@ -61,6 +61,7 @@ type PdfMaroto struct {
 	TableListHelper           internal.TableList
 	pageIndex                 int
 	offsetY                   float64
+	marginTop                 float64
 	rowHeight                 float64
 	rowColCount               float64
 	backgroundColor           color.Color
@@ -126,6 +127,42 @@ func (s *PdfMaroto) RegisterHeader(closure func()) {
 	s.headerClosure = closure
 }
 
+func (s *PdfMaroto) footer() {
+	backgroundColor := s.backgroundColor
+	s.SetBackgroundColor(color.NewWhite())
+
+	_, pageHeight := s.Pdf.GetPageSize()
+	_, top, _, bottom := s.Pdf.GetMargins()
+
+	totalOffsetY := int(s.offsetY + s.footerHeight)
+	maxOffsetPage := int(pageHeight - bottom - top)
+
+	s.Row(float64(maxOffsetPage-totalOffsetY), func() {
+		s.ColSpace()
+	})
+
+	if s.footerClosure != nil {
+		s.footerClosure()
+	}
+
+	s.SetBackgroundColor(backgroundColor)
+}
+
+func (s *PdfMaroto) header() {
+	backgroundColor := s.backgroundColor
+	s.SetBackgroundColor(color.NewWhite())
+
+	s.Row(s.marginTop, func() {
+		s.ColSpace()
+	})
+
+	if s.headerClosure != nil {
+		s.headerClosure()
+	}
+
+	s.SetBackgroundColor(backgroundColor)
+}
+
 // RegisterFooter define a sequence of Rows, Lines ou TableLists
 // which will be added in every new page
 func (s *PdfMaroto) RegisterFooter(closure func()) {
@@ -153,7 +190,12 @@ func (s *PdfMaroto) GetCurrentOffset() float64 {
 // SetPageMargins overrides default margins (10,10,10)
 // the new page margin will affect all PDF pages
 func (s *PdfMaroto) SetPageMargins(left, top, right float64) {
-	s.Pdf.SetMargins(left, top, right)
+	if top <= 10 {
+		s.Pdf.SetMargins(left, top, right)
+	} else {
+		s.marginTop = top - 10
+		s.Pdf.SetMargins(left, 10, right)
+	}
 }
 
 // GetPageMargins returns the set page margins. Comes in order of Left, Top, Right, Bottom
@@ -244,21 +286,19 @@ func (s *PdfMaroto) Row(height float64, closure func()) {
 	// height of the footer, add the footer
 	if totalOffsetY > maxOffsetPage {
 		if !s.headerFooterContextActive {
-			if s.footerClosure != nil {
-				s.headerFooterContextActive = true
-				s.footerClosure()
-				s.headerFooterContextActive = false
-			}
+			s.headerFooterContextActive = true
+			s.footer()
+			s.headerFooterContextActive = false
 			s.offsetY = 0
 			s.pageIndex++
 		}
 	}
 
 	// If is a new page, add the header
-	if !s.headerFooterContextActive && s.headerClosure != nil {
+	if !s.headerFooterContextActive {
 		if s.offsetY == 0 {
 			s.headerFooterContextActive = true
-			s.headerClosure()
+			s.header()
 			s.headerFooterContextActive = false
 		}
 	}