func magicImage(path string, width, height uint, caption, class string) html.HTML {
f, err := os.Open(env.RelPath("static", path))
if err != nil {
panic(err)
}
defer f.Close()
ext := strings.ToLower(filepath.Ext(path))
resizedPath := fmt.Sprintf("%s%dx%d%s", path[:len(path)-len(ext)], width, height, ext)
finfo, err := os.Stat(env.RelPath("static", resizedPath))
if err != nil || finfo.Size() == 0 {
fmt.Printf("Resizing image '%s'...", path)
img, _, err := image.Decode(f)
if err != nil {
panic(err)
}
resized := resize.Resize(width, height, img, resize.Bicubic)
resizedFile, err := os.Create(env.RelPath("static", resizedPath))
if err != nil {
panic(err)
}
defer resizedFile.Close()
switch ext {
case ".jpg", ".jpeg":
jpeg.Encode(resizedFile, resized, nil)
case ".png":
png.Encode(resizedFile, resized)
}
fmt.Println(" complete.")
}
return html.HTML(fmt.Sprintf(`
<div class="%s">
<figure>
<a href="/static/%s">
<img src="/static/%s" />
</a>
<figcaption>%s</figcaption>
</figure>
</div>
`, class, path, resizedPath, caption))
}
func templatePath(components ...string) string {
components[len(components)-1] += ".html"
return env.RelPath(append([]string{TemplatePath}, components...)...)
}
func NewPageController(paths ...string) gadget.Controller {
pageset := NewPageSet(env.RelPath(paths...))
return &PageController{pages: pageset, url: paths[len(paths)-1]}
}