mirror of
https://github.com/unidoc/unipdf.git
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b1c851b7b0
* initial commit to add action support * Add support for all actions as defined in the specs * Implement filespec for actions * Add url filespec test * update file test * Implement remarks + add tests
95 lines
2.2 KiB
Go
95 lines
2.2 KiB
Go
/*
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* This file is subject to the terms and conditions defined in
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* file 'LICENSE.md', which is part of this source code package.
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*/
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package creator
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import (
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"github.com/unidoc/unipdf/v3/core"
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"github.com/unidoc/unipdf/v3/model"
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)
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// TextChunk represents a chunk of text along with a particular style.
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type TextChunk struct {
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// The text that is being rendered in the PDF.
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Text string
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// The style of the text being rendered.
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Style TextStyle
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// Text chunk annotation.
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annotation *model.PdfAnnotation
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// Internally used in order to skip processing the annotation
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// if it has already been processed by the parent component.
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annotationProcessed bool
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}
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// newTextChunk returns a new text chunk instance.
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func newTextChunk(text string, style TextStyle) *TextChunk {
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return &TextChunk{
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Text: text,
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Style: style,
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}
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}
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// newExternalLinkAnnotation returns a new external link annotation.
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func newExternalLinkAnnotation(url string) *model.PdfAnnotation {
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annotation := model.NewPdfAnnotationLink()
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// Set border style.
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bs := model.NewBorderStyle()
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bs.SetBorderWidth(0)
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annotation.BS = bs.ToPdfObject()
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// Set link destination.
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action := model.NewPdfActionURI()
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action.URI = core.MakeString(url)
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annotation.SetAction(action.PdfAction)
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return annotation.PdfAnnotation
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}
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// newExternalLinkAnnotation returns a new internal link annotation.
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func newInternalLinkAnnotation(page int64, x, y, zoom float64) *model.PdfAnnotation {
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annotation := model.NewPdfAnnotationLink()
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// Set border style.
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bs := model.NewBorderStyle()
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bs.SetBorderWidth(0)
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annotation.BS = bs.ToPdfObject()
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// Set link destination.
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if page < 0 {
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page = 0
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}
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annotation.Dest = core.MakeArray(
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core.MakeInteger(page),
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core.MakeName("XYZ"),
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core.MakeFloat(x),
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core.MakeFloat(y),
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core.MakeFloat(zoom),
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)
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return annotation.PdfAnnotation
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}
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// copyLinkAnnotation returns a new link annotation based on an existing one.
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func copyLinkAnnotation(link *model.PdfAnnotationLink) *model.PdfAnnotationLink {
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if link == nil {
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return nil
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}
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annotation := model.NewPdfAnnotationLink()
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annotation.BS = link.BS
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annotation.A = link.A
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if annotDest, ok := link.Dest.(*core.PdfObjectArray); ok {
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annotation.Dest = core.MakeArray(annotDest.Elements()...)
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}
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return annotation
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}
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