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[US-234] Update form example to add a submit button (#239)
* update form example to add a submit button * add new pdf form with submit and reset button example * update readme file * update dependecies * revert some dependency version updates
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| /* | ||
| * Create a new form with a submit and reset button. | ||
| * The example shows how to add a submit button and a reset button to a form. | ||
| * The submit button could be used to send the form data to a backend server, | ||
| * and the reset button would reset the form fields value. | ||
| * | ||
| * Run as: go run pdf_form_action.go | ||
| */ | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "log" | ||
| "os" | ||
|
|
||
| "github.com/unidoc/unipdf/v3/annotator" | ||
| "github.com/unidoc/unipdf/v3/common/license" | ||
| "github.com/unidoc/unipdf/v3/contentstream/draw" | ||
| "github.com/unidoc/unipdf/v3/core" | ||
| "github.com/unidoc/unipdf/v3/creator" | ||
| "github.com/unidoc/unipdf/v3/model" | ||
| ) | ||
|
|
||
| func init() { | ||
| // Make sure to load your metered License API key prior to using the library. | ||
| // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io | ||
| err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
|
||
| func main() { | ||
| textFieldsDef := []struct { | ||
| Label string | ||
| Name string | ||
| Rect []float64 | ||
| }{ | ||
| {Label: "Full Name", Name: "full_name", Rect: []float64{123.97, 619.02, 343.99, 633.6}}, | ||
| {Label: "Address 1", Name: "address_line_1", Rect: []float64{123.97, 596.82, 343.99, 611.4}}, | ||
| {Label: "Address 2", Name: "address_line_2", Rect: []float64{123.97, 574.28, 343.99, 588.86}}, | ||
| } | ||
|
|
||
| c := creator.New() | ||
| page := c.NewPage() | ||
| _, pageHeight, err := page.Size() | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| form := model.NewPdfAcroForm() | ||
| fields := core.MakeArray() | ||
|
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| // Create text fields and it's label | ||
| for _, fdef := range textFieldsDef { | ||
| opt := annotator.TextFieldOptions{} | ||
| textf, err := annotator.NewTextField(page, fdef.Name, fdef.Rect, opt) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
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||
| *form.Fields = append(*form.Fields, textf.PdfField) | ||
| page.AddAnnotation(textf.Annotations[0].PdfAnnotation) | ||
|
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| y := pageHeight - fdef.Rect[1] | ||
|
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| p := c.NewParagraph(fdef.Label) | ||
| p.SetPos(fdef.Rect[0]-80, y-10) | ||
| err = c.Draw(p) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
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||
| line := c.NewLine(fdef.Rect[0], y, fdef.Rect[2], y) | ||
| err = c.Draw(line) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| fields.Append(textf.ToPdfObject()) | ||
| } | ||
|
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| err = addSubmitButton(page, form) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| err = addResetButton(page, form, fields) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
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||
| c.SetForms(form) | ||
|
|
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| err = c.WriteToFile("form_with_action_button.pdf") | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| } | ||
|
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||
| // Add Submit button that will submit all fields value. | ||
| func addSubmitButton(page *model.PdfPage, form *model.PdfAcroForm) error { | ||
| optSubmit := annotator.FormSubmitActionOptions{ | ||
| Url: "https://unidoc.io", | ||
| Rectangle: draw.Rectangle{ | ||
| X: 400.0, | ||
| Y: 400.0, | ||
| Width: 50.0, | ||
| Height: 20.0, | ||
| FillColor: model.NewPdfColorDeviceRGB(0.0, 1.0, 0.0), | ||
| }, | ||
| Label: "Submit", | ||
| LabelColor: model.NewPdfColorDeviceRGB(1.0, 0.0, 0.0), | ||
| } | ||
|
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| btnSubmitField, err := annotator.NewFormSubmitButtonField(page, optSubmit) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| *form.Fields = append(*form.Fields, btnSubmitField.PdfField) | ||
| page.AddAnnotation(btnSubmitField.Annotations[0].PdfAnnotation) | ||
|
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| return nil | ||
| } | ||
|
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||
| // Add Reset button that would reset the specified fields to it's default value. | ||
| func addResetButton(page *model.PdfPage, form *model.PdfAcroForm, fields *core.PdfObjectArray) error { | ||
| optReset := annotator.FormResetActionOptions{ | ||
| Rectangle: draw.Rectangle{ | ||
| X: 100.0, | ||
| Y: 400.0, | ||
| Width: 50.0, | ||
| Height: 20.0, | ||
| FillColor: model.NewPdfColorDeviceGray(0.5), | ||
| }, | ||
| Label: "Reset", | ||
| LabelColor: model.NewPdfColorDeviceGray(1.0), | ||
| Fields: fields, | ||
| } | ||
|
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| btnResetField, err := annotator.NewFormResetButtonField(page, optReset) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| // Add widget to existing form. | ||
| *form.Fields = append(*form.Fields, btnResetField.PdfField) | ||
| page.AddAnnotation(btnResetField.Annotations[0].PdfAnnotation) | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,32 +1,63 @@ | ||
| module github.com/unidoc/unidoc-examples | ||
|
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| go 1.17 | ||
|
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| require ( | ||
| cloud.google.com/go/kms v1.4.0 | ||
| github.com/ThalesIgnite/crypto11 v1.2.4 | ||
| github.com/adrg/strutil v0.2.3 // indirect | ||
| github.com/adrg/sysfont v0.1.2 // indirect | ||
| github.com/adrg/xdg v0.3.3 // indirect | ||
| github.com/aws/aws-sdk-go v1.44.130 | ||
| github.com/bmatcuk/doublestar v1.3.4 | ||
| github.com/boombuler/barcode v1.0.1 | ||
| github.com/kr/text v0.2.0 // indirect | ||
| github.com/miekg/pkcs11 v1.0.3 // indirect | ||
| github.com/sirupsen/logrus v1.8.1 // indirect | ||
| github.com/trimmer-io/go-xmp v1.0.0 | ||
| github.com/unidoc/globalsign-dss v0.0.0-20220330092912-b69d85b63736 | ||
| github.com/unidoc/pkcs7 v0.2.0 | ||
| github.com/unidoc/unichart v0.3.0 | ||
| github.com/unidoc/unipdf/v3 v3.50.0 | ||
| github.com/unidoc/unipdf/v3 v3.54.0 | ||
| github.com/wcharczuk/go-chart/v2 v2.1.0 | ||
| go.opencensus.io v0.24.0 // indirect | ||
| golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa | ||
| golang.org/x/image v0.10.0 | ||
| golang.org/x/text v0.11.0 | ||
| golang.org/x/crypto v0.17.0 | ||
| golang.org/x/image v0.14.0 | ||
| golang.org/x/text v0.14.0 | ||
| google.golang.org/api v0.102.0 | ||
| google.golang.org/genproto v0.0.0-20221024183307-1bc688fe9f3e | ||
| google.golang.org/protobuf v1.28.1 | ||
| gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect | ||
| gopkg.in/gographics/imagick.v2 v2.6.0 | ||
| ) | ||
|
|
||
| go 1.15 | ||
| require ( | ||
| cloud.google.com/go v0.104.0 // indirect | ||
| cloud.google.com/go/compute v1.12.1 // indirect | ||
| cloud.google.com/go/compute/metadata v0.2.1 // indirect | ||
| cloud.google.com/go/iam v0.3.0 // indirect | ||
| github.com/adrg/strutil v0.2.3 // indirect | ||
| github.com/adrg/sysfont v0.1.2 // indirect | ||
| github.com/adrg/xdg v0.3.3 // 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 v1.5.2 // indirect | ||
| github.com/google/go-cmp v0.5.9 // indirect | ||
| github.com/googleapis/enterprise-certificate-proxy v0.2.0 // indirect | ||
| github.com/googleapis/gax-go/v2 v2.6.0 // indirect | ||
| github.com/gorilla/i18n v0.0.0-20150820051429-8b358169da46 // indirect | ||
| github.com/jmespath/go-jmespath v0.4.0 // indirect | ||
| github.com/kr/text v0.2.0 // indirect | ||
| github.com/miekg/pkcs11 v1.0.3 // indirect | ||
| github.com/pkg/errors v0.9.1 // indirect | ||
| github.com/pmezard/go-difflib v1.0.0 // indirect | ||
| github.com/sirupsen/logrus v1.8.1 // indirect | ||
| github.com/stretchr/testify v1.8.4 // indirect | ||
| github.com/thales-e-security/pool v0.0.2 // indirect | ||
| github.com/unidoc/freetype v0.2.3 // indirect | ||
| github.com/unidoc/garabic v0.0.0-20220702200334-8c7cb25baa11 // indirect | ||
| github.com/unidoc/timestamp v0.0.0-20200412005513-91597fd3793a // indirect | ||
| github.com/unidoc/unitype v0.2.1 // indirect | ||
| go.opencensus.io v0.24.0 // indirect | ||
| golang.org/x/net v0.17.0 // indirect | ||
| golang.org/x/oauth2 v0.0.0-20221014153046-6fdb5e3db783 // indirect | ||
| golang.org/x/sys v0.15.0 // indirect | ||
| golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect | ||
| google.golang.org/appengine v1.6.7 // indirect | ||
| google.golang.org/grpc v1.50.1 // indirect | ||
| gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect | ||
| gopkg.in/yaml.v3 v3.0.1 // indirect | ||
| ) |
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