celogeek/go-comic-converter
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remove blank page for double page rendering

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Celogeek 2023-01-16 08:46:32 +01:00
parent 6dc220d0f4
commit f0673b8f58
Signed by: celogeek
GPG Key ID: E6B7BDCFC446233A
3 changed files with 14 additions and 8 deletions
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2
README.md
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@ -94,6 +94,8 @@ Usage of go-comic-converter:
Limit size of the ePub: Default nolimit (0), Minimum 20 Limit size of the ePub: Default nolimit (0), Minimum 20
-manga -manga
Manga mode (right to left) Manga mode (right to left)
-noblankpage
Remove blank pages
-nocrop -nocrop
Disable cropping Disable cropping
-output string -output string

5
internal/epub/core.go
View File

@ -23,6 +23,7 @@ type ImageOptions struct {
Contrast int Contrast int
AutoRotate bool AutoRotate bool
AutoSplitDoublePage bool AutoSplitDoublePage bool
NoBlankPage bool
Manga bool Manga bool
Workers int Workers int
} }
@ -73,7 +74,7 @@ func NewEpub(options *EpubOptions) *ePub {
return return
}, },
"spread_blank": func(part int) bool { "spread_blank": func(part int) bool {
if part == 1 && spreadRight == options.Manga { if !options.NoBlankPage && part == 1 && spreadRight == options.Manga {
return true return true
} }
return false return false
@ -216,7 +217,7 @@ func (e *ePub) Write() error {
return err return err
} }
if img.Part == 1 { if !e.NoBlankPage && img.Part == 1 {
if err := wz.WriteFile( if err := wz.WriteFile(
fmt.Sprintf("OEBPS/Text/%d_sp.xhtml", img.Id), fmt.Sprintf("OEBPS/Text/%d_sp.xhtml", img.Id),
e.render(blankTmpl, map[string]any{ e.render(blankTmpl, map[string]any{

15
internal/epub/templates/content.opf.tmpl
View File

@ -1,17 +1,18 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<package version="3.0" unique-identifier="BookID" xmlns="http://www.idpf.org/2007/opf"> <package version="3.0" unique-identifier="BookID" xmlns="http://www.idpf.org/2007/opf">
{{ $info := .Info }}
<metadata xmlns:opf="http://www.idpf.org/2007/opf" xmlns:dc="http://purl.org/dc/elements/1.1/"> <metadata xmlns:opf="http://www.idpf.org/2007/opf" xmlns:dc="http://purl.org/dc/elements/1.1/">
<dc:title>{{ .Info.Title }}</dc:title> <dc:title>{{ $info.Title }}</dc:title>
<dc:language>en-US</dc:language> <dc:language>en-US</dc:language>
<dc:identifier id="BookID">urn:uuid:{{ .Info.UID }}</dc:identifier> <dc:identifier id="BookID">urn:uuid:{{ $info.UID }}</dc:identifier>
<dc:contributor id="contributor">GO Comic Converter</dc:contributor> <dc:contributor id="contributor">GO Comic Converter</dc:contributor>
<dc:creator>GO Comic Converter</dc:creator> <dc:creator>GO Comic Converter</dc:creator>
<meta property="dcterms:modified">{{ .Info.UpdatedAt }}</meta> <meta property="dcterms:modified">{{ $info.UpdatedAt }}</meta>
<meta name="cover" content="cover"/> <meta name="cover" content="cover"/>
<meta name="fixed-layout" content="true"/> <meta name="fixed-layout" content="true"/>
<meta name="original-resolution" content="{{ .Info.ViewWidth }}x{{ .Info.ViewHeight }}"/> <meta name="original-resolution" content="{{ $info.ViewWidth }}x{{ $info.ViewHeight }}"/>
<meta name="book-type" content="comic"/> <meta name="book-type" content="comic"/>
<meta name="primary-writing-mode" content="horizontal-{{ if .Info.Manga }}rl{{ else }}lr{{ end }}"/> <meta name="primary-writing-mode" content="horizontal-{{ if $info.Manga }}rl{{ else }}lr{{ end }}"/>
<meta name="zero-gutter" content="true"/> <meta name="zero-gutter" content="true"/>
<meta name="zero-margin" content="true"/> <meta name="zero-margin" content="true"/>
<meta name="ke-border-color" content="#FFFFFF"/> <meta name="ke-border-color" content="#FFFFFF"/>
@ -28,12 +29,14 @@
{{ range .Images }} {{ range .Images }}
<item id="page_{{ .Id }}_p{{ .Part}}" href="Text/{{ .Id }}_p{{ .Part}}.xhtml" media-type="application/xhtml+xml"/> <item id="page_{{ .Id }}_p{{ .Part}}" href="Text/{{ .Id }}_p{{ .Part}}.xhtml" media-type="application/xhtml+xml"/>
<item id="img_{{ .Id }}_p{{ .Part}}" href="Images/{{ .Id }}_p{{ .Part}}.jpg" media-type="image/jpeg"/> <item id="img_{{ .Id }}_p{{ .Part}}" href="Images/{{ .Id }}_p{{ .Part}}.jpg" media-type="image/jpeg"/>
{{ if eq $info.NoBlankPage false }}
{{ if eq .Part 1 }} {{ if eq .Part 1 }}
<item id="page_{{ .Id }}_sp" href="Text/{{ .Id }}_sp.xhtml" media-type="application/xhtml+xml"/> <item id="page_{{ .Id }}_sp" href="Text/{{ .Id }}_sp.xhtml" media-type="application/xhtml+xml"/>
{{ end }} {{ end }}
{{ end }} {{ end }}
{{ end }}
</manifest> </manifest>
<spine page-progression-direction="{{ if .Info.Manga }}rtl{{ else }}ltr{{ end }}" toc="ncx"> <spine page-progression-direction="{{ if $info.Manga }}rtl{{ else }}ltr{{ end }}" toc="ncx">
<itemref idref="page_part" linear="yes" properties="page-spread-{{ spread }}"/> <itemref idref="page_part" linear="yes" properties="page-spread-{{ spread }}"/>
{{ range .Images }} {{ range .Images }}
{{ if spread_blank .Part }} {{ if spread_blank .Part }}