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procset_obj.go
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/
procset_obj.go
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package gopdf
import (
"fmt"
"io"
)
//ProcSetObj pdf procSet object
type ProcSetObj struct {
//Font
Realtes RelateFonts
RealteXobjs RealteXobjects
ExtGStates []ExtGS
ImportedTemplateIds map[string]int
getRoot func() *GoPdf
}
func (pr *ProcSetObj) init(funcGetRoot func() *GoPdf) {
pr.getRoot = funcGetRoot
pr.ImportedTemplateIds = make(map[string]int, 0)
pr.ExtGStates = make([]ExtGS, 0)
}
func (pr *ProcSetObj) write(w io.Writer, objID int) error {
io.WriteString(w, "<<\n")
io.WriteString(w, "/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]\n")
io.WriteString(w, "/Font <<\n")
//me.buffer.WriteString("/F1 9 0 R
//me.buffer.WriteString("/F2 12 0 R
//me.buffer.WriteString("/F3 15 0 R
i := 0
max := len(pr.Realtes)
for i < max {
realte := pr.Realtes[i]
fmt.Fprintf(w, " /F%d %d 0 R\n", realte.CountOfFont+1, realte.IndexOfObj+1)
i++
}
io.WriteString(w, ">>\n")
io.WriteString(w, "/XObject <<\n")
i = 0
max = len(pr.RealteXobjs)
for i < max {
fmt.Fprintf(w, "/I%d %d 0 R\n", pr.getRoot().curr.CountOfL+1, pr.RealteXobjs[i].IndexOfObj+1)
pr.getRoot().curr.CountOfL++
i++
}
// Write imported template name and their ids
for tplName, objId := range pr.ImportedTemplateIds {
io.WriteString(w, fmt.Sprintf("%s %d 0 R\n", tplName, objId))
}
io.WriteString(w, ">>\n")
io.WriteString(w, "/ExtGState <<\n")
for _, extGState := range pr.ExtGStates {
gsIndex := extGState.Index+1
fmt.Fprintf(w, "/GS%d %d 0 R\n", gsIndex, gsIndex)
pr.getRoot().curr.CountOfL++
}
io.WriteString(w, ">>\n")
io.WriteString(w, ">>\n")
return nil
}
func (pr *ProcSetObj) getType() string {
return "ProcSet"
}
type RelateFonts []RelateFont
func (re *RelateFonts) IsContainsFamily(family string) bool {
i := 0
max := len(*re)
for i < max {
if (*re)[i].Family == family {
return true
}
i++
}
return false
}
// IsContainsFamilyAndStyle - checks if already exists font with same name and style
func (re *RelateFonts) IsContainsFamilyAndStyle(family string, style int) bool {
i := 0
max := len(*re)
for i < max {
if (*re)[i].Family == family && (*re)[i].Style == style {
return true
}
i++
}
return false
}
type RelateFont struct {
Family string
//etc /F1
CountOfFont int
//etc 5 0 R
IndexOfObj int
Style int // Regular|Bold|Italic
}
type RealteXobjects []RealteXobject
type RealteXobject struct {
IndexOfObj int
}
type ExtGS struct {
Index int
}