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Allow xobject image modification that preserves unchanged parts of original xobject

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This commit is contained in:
Peter Williams 2017-05-05 18:16:21 +10:00
parent 883bfefce6
commit 5176b0b6b7
1 changed files with 7 additions and 1 deletions
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8
pdf/model/xobject.go
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@ -245,7 +245,13 @@ func NewXObjectImage() *XObjectImage {
// Creates a new XObject Image from an image object with default options.
// If encoder is nil, uses raw encoding (none).
func NewXObjectImageFromImage(name PdfObjectName, img *Image, cs PdfColorspace, encoder StreamEncoder) (*XObjectImage, error) {
xobj := NewXObjectImage()
baseXObj := NewXObjectImage()
return UpdateXObjectImageFromImage(baseXObj, name, img, cs, encoder)
}
func UpdateXObjectImageFromImage(baseXObj *XObjectImage, name PdfObjectName, img *Image, cs PdfColorspace, encoder StreamEncoder) (*XObjectImage, error) {
dupObj := *baseXObj
xobj := &dupObj
if encoder == nil {
encoder = NewRawEncoder()