create title page

internal/epub/epub.go

@@ -122,6 +122,10 @@ func (e *ePub) writeBlank(wz *epubZip, img *Image) error {
 	)
 }
 
+func (e ePub) getTitleImageData(img *Image, currentPart, totalPart int) *ImageData {
+	return newData("OEBPS/Images/title.jpg", img.Raw, e.Quality)
+}
+
 func (e *ePub) getParts() ([]*epubPart, error) {
 	images, err := e.LoadImages()
 
@@ -243,10 +247,11 @@ func (e *ePub) Write() error {
 				"PageWidth":  e.ViewWidth,
 				"PageHeight": e.ViewHeight,
 			})},
-			{"OEBPS/Text/title.xhtml", e.render(titleTmpl, map[string]any{
-				"Info":  e,
-				"Part":  i + 1,
-				"Total": totalParts,
+			{"OEBPS/Text/title.xhtml", e.render(textTmpl, map[string]any{
+				"Title":      title,
+				"ViewPort":   fmt.Sprintf("width=%d,height=%d", e.ViewWidth, e.ViewHeight),
+				"ImagePath":  "Images/title.jpg",
+				"ImageStyle": part.Cover.ImgStyle(e.ViewWidth, e.ViewHeight, e.Manga),
 			})},
 		}
 
@@ -258,6 +263,9 @@ func (e *ePub) Write() error {
 				return err
 			}
 		}
+		if err := wz.WriteImage(e.getTitleImageData(part.Cover, i+1, totalParts)); err != nil {
+			return err
+		}
 
 		// Cover exist or part > 1
 		// If no cover, part 2 and more will include the image as a cover

internal/epub/epub_content.go

@@ -75,6 +75,8 @@ func (e *ePub) getManifest(title string, part *epubPart, currentPart, totalPart
 	items := []Tag{
 		{"item", TagAttrs{"id": "toc", "href": "toc.xhtml", "properties": "nav", "media-type": "application/xhtml+xml"}, ""},
 		{"item", TagAttrs{"id": "css", "href": "Text/style.css", "media-type": "text/css"}, ""},
+		{"item", TagAttrs{"id": "page_title", "href": "Text/title.xhtml", "media-type": "application/xhtml+xml"}, ""},
+		{"item", TagAttrs{"id": "img_title", "href": "Images/title.jpg", "media-type": "image/jpeg"}, ""},
 	}
 
 	if e.HasCover || currentPart > 1 {
@@ -93,7 +95,6 @@ func (e *ePub) getManifest(title string, part *epubPart, currentPart, totalPart
 }
 
 func (e *ePub) getSpine(title string, part *epubPart, currentPart, totalPart int) []Tag {
-	spine := []Tag{}
 	isOnTheRight := !e.Manga
 	getSpread := func(doublePageNoBlank bool) string {
 		isOnTheRight = !isOnTheRight
@@ -108,6 +109,10 @@ func (e *ePub) getSpine(title string, part *epubPart, currentPart, totalPart int
 			return "rendition:page-spread-left"
 		}
 	}
+
+	spine := []Tag{
+		{"itemref", TagAttrs{"idref": "page_title", "properties": getSpread(false)}, ""},
+	}
 	for _, img := range part.Images {
 		spine = append(spine, Tag{
 			"itemref",

internal/epub/epub_image_data.go

@@ -22,6 +22,10 @@ func (img *ImageData) CompressedSize() uint64 {
 
 func newImageData(id int, part int, img image.Image, quality int) *ImageData {
 	name := fmt.Sprintf("OEBPS/Images/%d_p%d.jpg", id, part)
+	return newData(name, img, quality)
+}
+
+func newData(name string, img image.Image, quality int) *ImageData {
 	data := bytes.NewBuffer([]byte{})
 	if err := jpeg.Encode(data, img, &jpeg.Options{Quality: quality}); err != nil {
 		panic(err)

internal/epub/epub_image_processing.go

@@ -28,6 +28,7 @@ import (
 type Image struct {
 	Id         int
 	Part       int
+	Raw        image.Image
 	Data       *ImageData
 	Width      int
 	Height     int
@@ -180,15 +181,9 @@ func (e *ePub) LoadImages() ([]*Image, error) {
 		for img := range imageInput {
 			img.Reader.Close()
 			images = append(images, &Image{
-				Id:         img.Id,
-				Part:       0,
-				Data:       nil,
-				Width:      0,
-				Height:     0,
-				IsCover:    false,
-				DoublePage: false,
-				Path:       img.Path,
-				Name:       img.Name,
+				Id:   img.Id,
+				Path: img.Path,
+				Name: img.Name,
 			})
 		}
 
@@ -229,9 +224,15 @@ func (e *ePub) LoadImages() ([]*Image, error) {
 				dst := image.NewGray(g.Bounds(src.Bounds()))
 				g.Draw(dst, src)
 
+				var raw image.Image
+				if img.Id == 0 {
+					raw = dst
+				}
+
 				imageOutput <- &Image{
 					Id:      img.Id,
 					Part:    0,
+					Raw:     raw,
 					Data:    newImageData(img.Id, 0, dst, e.ImageOptions.Quality),
 					Width:   dst.Bounds().Dx(),
 					Height:  dst.Bounds().Dy(),

internal/epub/epub_templates.go

@@ -11,9 +11,6 @@ var appleBooksTmpl string
 //go:embed "templates/epub_templates_style.css.tmpl"
 var styleTmpl string
 
-//go:embed "templates/epub_templates_title.xhtml.tmpl"
-var titleTmpl string
-
 //go:embed "templates/epub_templates_text.xhtml.tmpl"
 var textTmpl string
 

internal/epub/epub_toc.go

@@ -53,8 +53,8 @@ func (e *ePub) getToc(title string, images []*Image) string {
 
 	beginning := etree.NewElement("li")
 	beginningLink := beginning.CreateElement("a")
-	beginningLink.CreateAttr("href", images[0].TextPath())
-	beginningLink.CreateText("Start of the book")
+	beginningLink.CreateAttr("href", "Text/title.xhtml")
+	beginningLink.CreateText(title)
 	ol.InsertChildAt(0, beginning)
 
 	nav.AddChild(ol)

internal/epub/templates/epub_templates_title.xhtml.tmpl

@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops">
-  <head>
-    <meta charset="utf-8" />
-    <title>Part {{ .Part }}</title>
-    <link href="style.css" type="text/css" rel="stylesheet"/>
-    <meta name="viewport" content="width={{ .Info.ViewWidth }}, height={{ .Info.ViewHeight }}"/>
-  </head>
-  <body>
-    <h2>{{ .Info.Title }}</h2>
-{{ if gt .Total 1 }}
-    <h3>Part {{ .Part }} / {{ .Total }}</h3>
-{{ end }}
-  </body>
-</html>