/
thumbnails.go
82 lines (74 loc) · 1.99 KB
/
thumbnails.go
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// Copyright 2015 Geofrey Ernest a.k.a gernest, All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package imgr
import (
"errors"
"os"
"path/filepath"
"github.com/disintegration/imaging"
)
const (
THUMNAIL_SIZE = 200
)
type Thumbnails struct {
ImageManager
}
func (t *Thumbnails) Process(width, height int) error {
var w, h int
w = width
h = height
if width == 0 || height == 0 {
w = THUMNAIL_SIZE
h = THUMNAIL_SIZE
}
if len(t.Images) == 0 {
return errors.New("There is nothing to process")
}
logThis.Event("Start Processing Images from %s", t.Source)
for _, img := range t.Images {
err := createThumbnail(img, t.Destinalion, w, h)
if err != nil {
return err
}
}
logThis.Success("***Finished Processing***")
return nil
}
func (l *Thumbnails) CreateThumbnail(src, dest string, width int, height int) error {
img, err := getImageDetails(src)
if err != nil {
return err
}
pic := newImage(img, src)
return createThumbnail(pic, dest, width, height)
}
func createThumbnail(img *Image, dest string, width int, height int) error {
info, _ := os.Stat(filepath.Dir(img.Path))
_, err := os.Stat(dest)
if os.IsNotExist(err) {
_ = os.Mkdir(dest, info.Mode())
}
pic, err := imaging.Open(img.Path)
if err != nil {
return err
}
destImg := imaging.Thumbnail(pic, width, height, imaging.Lanczos)
destName := img.Name + "_thumbnail" + img.Ext
destPath := filepath.Join(dest, destName)
err = imaging.Save(destImg, destPath)
if err != nil {
return err
}
return nil
}