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thumbnail.go
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thumbnail.go
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/*
* Copyright (C) 2014 ~ 2018 Deepin Technology Co., Ltd.
*
* Author: jouyouyun <jouyouwen717@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package main
import (
"fmt"
"io/ioutil"
"math/rand"
"path"
"time"
"pkg.deepin.io/dde/api/themes"
"pkg.deepin.io/dde/api/thumbnails/cursor"
"pkg.deepin.io/dde/api/thumbnails/gtk"
"pkg.deepin.io/dde/api/thumbnails/icon"
"pkg.deepin.io/dde/api/thumbnails/images"
"pkg.deepin.io/dde/daemon/appearance/background"
"pkg.deepin.io/lib/graphic"
)
const (
thumbBgDir = "/var/cache/appearance/thumbnail/background"
defaultWidth = 128
defaultHeight = 72
)
func genAllThumbnails(force bool) []string {
var ret []string
ret = append(ret, genGtkThumbnails(force)...)
ret = append(ret, genIconThumbnails(force)...)
ret = append(ret, genCursorThumbnails(force)...)
ret = append(ret, genBgThumbnails(force)...)
return ret
}
func genGtkThumbnails(force bool) []string {
var ret []string
list := themes.ListGtkTheme()
for _, v := range list {
thumb, err := gtk.ThumbnailForTheme(path.Join(v, "index.theme"),
getThumbBg(), defaultWidth, defaultHeight, force)
if err != nil {
fmt.Printf("Gen '%s' thumbnail failed: %v\n", v, err)
continue
}
ret = append(ret, thumb)
}
return ret
}
func genIconThumbnails(force bool) []string {
var ret []string
list := themes.ListIconTheme()
for _, v := range list {
thumb, err := icon.ThumbnailForTheme(path.Join(v, "index.theme"),
getThumbBg(), defaultWidth, defaultHeight, force)
if err != nil {
fmt.Printf("Gen '%s' thumbnail failed: %v\n", v, err)
continue
}
ret = append(ret, thumb)
}
return ret
}
func genCursorThumbnails(force bool) []string {
var ret []string
list := themes.ListCursorTheme()
for _, v := range list {
thumb, err := cursor.ThumbnailForTheme(path.Join(v, "cursor.theme"),
getThumbBg(), defaultWidth, defaultHeight, force)
if err != nil {
fmt.Printf("Gen '%s' thumbnail failed: %v\n", v, err)
continue
}
ret = append(ret, thumb)
}
return ret
}
func genBgThumbnails(force bool) []string {
var ret []string
infos := background.ListBackground()
for _, info := range infos {
thumb, err := images.ThumbnailForTheme(info.Id,
defaultWidth, defaultHeight, force)
if err != nil {
fmt.Printf("Gen '%s' thumbnail failed: %v\n", info.Id, err)
continue
}
ret = append(ret, thumb)
}
return ret
}
func getThumbBg() string {
var imgs = getImagesInDir()
if len(imgs) == 0 {
return ""
}
rand.Seed(time.Now().UnixNano())
idx := rand.Intn(len(imgs))
return imgs[idx]
}
func getImagesInDir() []string {
finfos, err := ioutil.ReadDir(thumbBgDir)
if err != nil {
return nil
}
var imgs []string
for _, finfo := range finfos {
tmp := path.Join(thumbBgDir, finfo.Name())
if !graphic.IsSupportedImage(tmp) {
continue
}
imgs = append(imgs, tmp)
}
return imgs
}