[US-675] Removed dependency from go-chart and replaced it with unichart

go.mod

@@ -14,7 +14,6 @@ require (
 	github.com/unidoc/pkcs7 v0.2.0
 	github.com/unidoc/unichart v0.3.0
 	github.com/unidoc/unipdf/v3 v3.62.0
-	github.com/wcharczuk/go-chart/v2 v2.1.0
 	golang.org/x/crypto v0.22.0
 	golang.org/x/image v0.18.0
 	golang.org/x/text v0.16.0
@@ -32,7 +31,6 @@ require (
 	github.com/adrg/sysfont v0.1.2 // indirect
 	github.com/adrg/xdg v0.4.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
 	github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/go-cmp v0.5.9 // indirect

go.sum

@@ -39,8 +39,6 @@ github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1m
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/gabriel-vasile/mimetype v1.4.3 h1:in2uUcidCuFcDKtdcBxlR0rJ1+fsokWf+uqxgUFjbI0=
 github.com/gabriel-vasile/mimetype v1.4.3/go.mod h1:d8uq/6HKRL6CGdk+aubisF/M5GcPfT7nKyLpA0lbSSk=
-github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
-github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e h1:1r7pUrabqp18hOBcwBwiTsbnFeTZHV9eER/QT5JVZxY=
 github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@@ -134,16 +132,13 @@ github.com/unidoc/unipdf/v3 v3.62.0 h1:CVsxq6k1SSIrprotlFvq6iBhA+5745dWaApB0LKtG
 github.com/unidoc/unipdf/v3 v3.62.0/go.mod h1:0OIzSHHno23Y8WzaK+852abK8d3AxUZ1GQkMqpyCzu8=
 github.com/unidoc/unitype v0.4.0 h1:/TMZ3wgwfWWX64mU5x2O9no9UmoBqYCB089LYYqHyQQ=
 github.com/unidoc/unitype v0.4.0/go.mod h1:HV5zuUeqMKA4QgYQq3KDlJY/P96XF90BQB+6czK6LVA=
-github.com/wcharczuk/go-chart/v2 v2.1.0 h1:tY2slqVQ6bN+yHSnDYwZebLQFkphK4WNrVwnt7CJZ2I=
-github.com/wcharczuk/go-chart/v2 v2.1.0/go.mod h1:yx7MvAVNcP/kN9lKXM/NTce4au4DFN99j6i1OwDclNA=
 go.opencensus.io v0.24.0 h1:y73uSU6J157QMP2kn2r30vwW1A2W2WFwSCGnAVxeaD0=
 go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.22.0 h1:g1v0xeRhjcugydODzvb3mEM9SQ0HGp9s/nh3COQ/C30=
 golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
-golang.org/x/image v0.0.0-20200927104501-e162460cd6b5/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/image v0.0.0-20211028202545-6944b10bf410/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
 golang.org/x/image v0.18.0 h1:jGzIakQa/ZXI1I0Fxvaa9W7yP25TqT6cHIHn+6CqvSQ=
 golang.org/x/image v0.18.0/go.mod h1:4yyo5vMFQjVjUcVk4jEQcU9MGy/rulF5WvUILseCM2E=

report/pdf_report.go

@@ -5,25 +5,24 @@
  */
 /*
  * NOTE: This example depends on github.com/boombuler/barcode, MIT licensed,
- *       and github.com/wcharczuk/go-chart, MIT licensed,
+ *       and github.com/unidoc/unichart, MIT licensed,
  *       and the Roboto font (Roboto-Bold.ttf, Roboto-Regular.ttf), Apache-2 licensed.
  */
 
 package main
 
 import (
-	"bytes"
 	"fmt"
 	"image"
 	"math"
 	"os"
 	"time"
 
-	"github.com/wcharczuk/go-chart/v2"
-
 	"github.com/boombuler/barcode"
 	"github.com/boombuler/barcode/qr"
 
+	"github.com/unidoc/unichart"
+	"github.com/unidoc/unichart/dataset"
 	"github.com/unidoc/unipdf/v3/common"
 	"github.com/unidoc/unipdf/v3/common/license"
 	"github.com/unidoc/unipdf/v3/creator"
@@ -452,34 +451,26 @@ func DoFeatureOverview(c *creator.Creator, fontRegular *model.PdfFont, fontBold
 	sc.GetHeading().SetFontSize(chapterFontSize)
 	sc.GetHeading().SetColor(chapterFontColor)
 
-	p = c.NewParagraph("Graphs can be generated via packages such as github.com/wcharczuk/go-chart as illustrated " +
+	p = c.NewParagraph("Graphs can be generated via packages such as github.com/unidoc/unichart as illustrated " +
 		"in the following plot:")
 	p.SetFont(normalFont)
 	p.SetFontSize(normalFontSize)
 	p.SetColor(normalFontColor)
 	p.SetMargins(0, 0, 5, 0)
 	sc.Add(p)
 
-	graph := chart.PieChart{
-		Width:  200,
-		Height: 200,
-		Values: []chart.Value{
+	chart := &unichart.PieChart{
+		Values: []dataset.Value{
 			{Value: 70, Label: "Compliant"},
 			{Value: 30, Label: "Non-Compliant"},
 		},
 	}
+	chart.SetWidth(175)
+	chart.SetHeight(175)
 
-	buffer := bytes.NewBuffer([]byte{})
-	err = graph.Render(chart.PNG, buffer)
-	if err != nil {
-		panic(err)
-	}
-	img, err = c.NewImageFromData(buffer.Bytes())
-	if err != nil {
-		panic(err)
-	}
-	img.SetMargins(0, 0, 10, 0)
-	sc.Add(img)
+	// Create unipdf chart component.
+	chartComponent := creator.NewChart(chart)
+	sc.Add(chartComponent)
 
 	sc = ch.NewSubchapter("Headers and footers")
 	sc.GetHeading().SetMargins(0, 0, 20, 0)

report/pdf_report_landscape.go

@@ -6,25 +6,24 @@
 
 /*
  * NOTE: This example depends on github.com/boombuler/barcode, MIT licensed,
- *       and github.com/wcharczuk/go-chart, MIT licensed,
+ *       and github.com/unidoc/unichart, MIT licensed,
  *       and the Roboto font (Roboto-Bold.ttf, Roboto-Regular.ttf), Apache-2 licensed.
  */
 
 package main
 
 import (
-	"bytes"
 	"fmt"
 	"image"
 	"math"
 	"os"
 	"time"
 
-	"github.com/wcharczuk/go-chart/v2"
-
 	"github.com/boombuler/barcode"
 	"github.com/boombuler/barcode/qr"
 
+	"github.com/unidoc/unichart"
+	"github.com/unidoc/unichart/dataset"
 	"github.com/unidoc/unipdf/v3/common"
 	"github.com/unidoc/unipdf/v3/common/license"
 	"github.com/unidoc/unipdf/v3/creator"
@@ -457,34 +456,26 @@ func DoFeatureOverview(c *creator.Creator, fontRegular *model.PdfFont, fontBold
 	sc.GetHeading().SetFontSize(chapterFontSize)
 	sc.GetHeading().SetColor(chapterFontColor)
 
-	p = c.NewParagraph("Graphs can be generated via packages such as github.com/wcharczuk/go-chart as illustrated " +
+	p = c.NewParagraph("Graphs can be generated via packages such as github.com/unidoc/unichart as illustrated " +
 		"in the following plot:")
 	p.SetFont(normalFont)
 	p.SetFontSize(normalFontSize)
 	p.SetColor(normalFontColor)
 	p.SetMargins(0, 0, 5, 0)
 	sc.Add(p)
 
-	graph := chart.PieChart{
-		Width:  200,
-		Height: 200,
-		Values: []chart.Value{
+	chart := &unichart.PieChart{
+		Values: []dataset.Value{
 			{Value: 70, Label: "Compliant"},
 			{Value: 30, Label: "Non-Compliant"},
 		},
 	}
+	chart.SetWidth(175)
+	chart.SetHeight(175)
 
-	buffer := bytes.NewBuffer([]byte{})
-	err = graph.Render(chart.PNG, buffer)
-	if err != nil {
-		panic(err)
-	}
-	img, err = c.NewImageFromData(buffer.Bytes())
-	if err != nil {
-		panic(err)
-	}
-	img.SetMargins(0, 0, 10, 0)
-	sc.Add(img)
+	// Create unipdf chart component.
+	chartComponent := creator.NewChart(chart)
+	sc.Add(chartComponent)
 
 	sc = ch.NewSubchapter("Headers and footers")
 	sc.GetHeading().SetMargins(0, 0, 20, 0)