func (p *Page) concatImages() error {
width := 0
height := 0
for _, i := range p.divImages {
img, err := utility.DecodeImage(i)
if err != nil {
return err
}
height += img.Bounds().Size().Y
if width < img.Bounds().Size().X {
width = img.Bounds().Size().X
}
}
dstRect := image.Rect(0, 0, width, height)
dstImage := image.NewRGBA(dstRect)
top := 0
for _, i := range p.divImages {
img, err := utility.DecodeImage(i)
if err != nil {
return err
}
srcPoint := image.Point{0, 0}
dstRect := image.Rect(0, top, img.Bounds().Size().X, top+img.Bounds().Size().Y)
draw.Draw(dstImage, dstRect, img, srcPoint, draw.Src)
top += img.Bounds().Size().Y
}
return utility.SaveImage(dstImage, p.imagePath())
}
func collectPages(urlIndexes []*UrlIndex) (pages []*Page, err error) {
pageIndex := 0
var tmpImages []string
for _, u := range urlIndexes {
for _, imgPath := range u.images() {
//fmt.Printf("imgPath = %s\n", imgPath)
img, err := utility.DecodeImage(imgPath)
if err != nil {
return nil, err
}
height := img.Bounds().Size().Y
if math.Abs(float64(1600-height)) > 100 {
tmpImages = append(tmpImages, imgPath)
if len(tmpImages) == 2 {
pages = append(pages, &Page{pageIndex, tmpImages})
pageIndex++
}
} else {
pages = append(pages, &Page{pageIndex, []string{imgPath}})
pageIndex++
tmpImages = []string{}
}
}
}
return pages, nil
}