Finish the image processing

project.clj

@@ -1,6 +1,6 @@
 (defproject yenu "0.1.0-SNAPSHOT"
 
-  :description "FIXME: write description"
+  :description "yenu -- The image sharing tool for friends"
   :url "http://example.com/FIXME"
 
   :dependencies [[bouncer "1.0.0"]
@@ -30,7 +30,11 @@
                  [ring/ring-core "1.5.1"]
                  [ring/ring-defaults "0.2.3"]
                  [secretary "1.2.3"]
-                 [selmer "1.10.6"]]
+                 [selmer "1.10.6"]
+                 [image-resizer "0.1.9"]
+                 [me.raynes/fs "1.4.6"]
+                 [digest "1.4.5"]
+                 [clj-exif-orientation "0.2.1"]]
 
   :min-lein-version "2.0.0"
 
@@ -47,14 +51,14 @@
             [lein-immutant "2.1.0"]
             [lein-sassc "0.10.4"]
             [lein-auto "0.1.2"]]
-   :sassc
-   [{:src "resources/scss/screen.scss"
-     :output-to "resources/public/css/screen.css"
-     :style "nested"
-     :import-path "resources/scss"}] 
+  :sassc
+  [{:src "resources/scss/screen.scss"
+    :output-to "resources/public/css/screen.css"
+    :style "nested"
+    :import-path "resources/scss"}] 
   
-   :auto
-   {"sassc" {:file-pattern #"\.(scss|sass)$" :paths ["resources/scss"]}} 
+  :auto
+  {"sassc" {:file-pattern #"\.(scss|sass)$" :paths ["resources/scss"]}} 
   
   :hooks [leiningen.sassc]
   :clean-targets ^{:protect false}

resources/public/css/screen.css

@@ -1,69 +1,4 @@
-html,
-body {
-	font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
-    height: 100%;
-}
-.navbar {
-  margin-bottom: 10px;
-  border-radius: 0px;
-}
-.navbar-brand {
-  float: none;
-}
-.navbar-nav .nav-item {
-  float: none;
-}
-.navbar-divider,
-.navbar-nav .nav-item+.nav-item,
-.navbar-nav .nav-link + .nav-link {
-  margin-left: 0;
-}
-@media (min-width: 34em) {
-  .navbar-brand {
-    float: left;
-  }
-  .navbar-nav .nav-item {
-    float: left;
-  }
-  .navbar-divider,
-  .navbar-nav .nav-item+.nav-item,
-  .navbar-nav .nav-link + .nav-link {
-    margin-left: 1rem;
-  }
-}
-
-@-moz-keyframes three-quarters-loader {
-    0% {
-        -moz-transform: rotate(0deg);
-        transform: rotate(0deg);
-    }
-    100% {
-        -moz-transform: rotate(360deg);
-        transform: rotate(360deg);
-    }
-}
-@-webkit-keyframes three-quarters-loader {
-    0% {
-        -webkit-transform: rotate(0deg);
-        transform: rotate(0deg);
-    }
-    100% {
-        -webkit-transform: rotate(360deg);
-        transform: rotate(360deg);
-    }
-}
-@keyframes three-quarters-loader {
-    0% {
-        -moz-transform: rotate(0deg);
-        -ms-transform: rotate(0deg);
-        -webkit-transform: rotate(0deg);
-        transform: rotate(0deg);
-    }
-    100% {
-        -moz-transform: rotate(360deg);
-        -ms-transform: rotate(360deg);
-        -webkit-transform: rotate(360deg);
-        transform: rotate(360deg);
-    }
-}
-
+html, body {
+  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+  height: 100%;
+  padding-top: 40px; }

src/clj/yenu/helpers/images.clj

@@ -0,0 +1,69 @@
+(ns yenu.helpers.images
+  (:require [image-resizer.core :refer :all]
+            [image-resizer.util :as utils]
+            [image-resizer.format :refer :all]
+            [image-resizer.crop :refer :all]
+            [clojure.java.io :as io]
+            [digest :as digest]
+            [me.raynes.fs :as fs]
+            [clj-exif-orientation.core :as exif]
+            [yenu.config :refer [env]]))
+
+(defn create-needed-folders []
+  (if (not (fs/exists? (data-path "to-process")))
+    (fs/mkdirs (data-path "to-process")))
+  (if (not (fs/exists? (data-path "gallery")))
+    (map #(fs/mkdirs (data-path "gallery" %))
+         ["normal" "raw" "thumbnails"])))
+
+;;; HINT: To use the env function, the webserver need to be started with
+;;; (start) in the 'user namespace.
+(defn data-path
+  ([] (data-path ""))
+  ([& args]
+   (let [postfix (apply io/file args)]
+     (.getPath (io/file (env :user-dir) "data" postfix)))))
+
+(defn target-image-filename [image-file-path]
+  (let [file (io/file image-file-path)]
+    (str (.lastModified file) "-" (digest/md5 file))))
+
+
+(defn scale-thumbnail [width]
+  #(let [image-file %
+         [orig-width orig-height] (dimensions (utils/buffered-image image-file))]
+     (if (< orig-width orig-height)
+       (let [resized-img (resize-to-width image-file width)
+             [w h] (dimensions resized-img)
+             crop-margin (quot (- h width) 2)]
+         (crop-from resized-img 0 crop-margin width width))
+       (let [resized-img (resize-to-height image-file width)
+             [w h] (dimensions resized-img)
+             crop-margin (quot (- w width) 2)]
+         (crop-from resized-img crop-margin 0 width width)))))
+
+(defn scale-normal [width height]
+  #(resize % width height))
+
+(defn save [fn params filepath target-filepath]
+  (let [file (exif/without-exif (io/file filepath))]
+    (as-file ((apply fn params) file)
+             target-filepath
+             :verbatim)))
+
+(defn scale-image-and-save [filepath]
+  (let [image-hash (target-image-filename filepath)
+        file-extension (fs/extension filepath)
+        new-file-name (str image-hash file-extension)]
+    (fs/copy filepath (data-path "gallery" "raw" new-file-name))
+    (save scale-normal [1024 768] filepath (data-path "gallery" "normal" new-file-name))
+    (save scale-thumbnail [250] filepath (data-path "gallery" "thumbnails" new-file-name))
+    image-hash))
+
+(defn process-image [filepath]
+  (let [image-hash (scale-image-and-save filepath)]
+    (fs/delete filepath)
+    image-hash))
+
+(defn process-all-images []
+  (pmap process-image (fs/list-dir (data-path "to-process"))))