func newImageVersion(filename, contentType string, sourceRect image.Rectangle, width, height int, grayscale bool) ImageVersion {
version := ImageVersion{
Filename: model.String(filename),
ContentType: model.String(contentType),
Width: model.Int(width),
Height: model.Int(height),
Grayscale: model.Bool(grayscale),
}
version.SourceRect.SetRectangle(sourceRect)
return version
}
func (self *Image) addVersion(filename, contentType string, sourceRect image.Rectangle, width, height int, grayscale bool) *ImageVersion {
version := ImageVersion{
image: self,
Filename: model.String(filename),
ContentType: model.String(contentType),
Width: model.Int(width),
Height: model.Int(height),
Grayscale: model.Bool(grayscale),
}
version.SourceRect.SetRectangle(sourceRect)
self.Versions = append(self.Versions, version)
return &self.Versions[len(self.Versions)-1]
}
func NewBlobFromReader(filename string, reader io.Reader) (*Blob, error) {
contentType := mime.TypeByExtension(path.Ext(filename))
blob := &Blob{
Filename: model.String(filename),
ContentType: model.String(contentType),
}
blob.Init()
writer, err := blob.FileWriter()
if err != nil {
return nil, err
}
defer writer.Close()
size, err := io.Copy(writer, reader)
if err != nil {
return nil, err
}
blob.Size.Set(size)
err = blob.Save()
if err != nil {
return nil, err
}
return blob, nil
}
func ImagesAdmin() view.View {
uploader := view.DIV("")
uploaderID := uploader.ID()
uploader.Content = UploadImageButton("#"+uploaderID, "", "", Config.ImagesAdmin.ThumbnailSize, "function(){window.location.reload()}")
return view.Views{
uploader,
&view.ModelIteratorView{
GetModelIterator: func(ctx *view.Context) model.Iterator {
return Config.Backend.ImageIterator()
},
GetModelIteratorView: func(ctx *view.Context, m interface{}) (view.View, error) {
image := m.(*Image)
refCount, err := image.CountRefs()
if err != nil {
return nil, err
}
thumbnail, err := image.Thumbnail(Config.ImagesAdmin.ThumbnailSize)
if err != nil {
return nil, err
}
deleteConfirmation := fmt.Sprintf("Are you sure you want to delete the image %s?", image.TitleOrFilename())
if refCount > 0 {
deleteConfirmation += fmt.Sprintf(" It is used %d times!", refCount)
}
editor := view.DIV(Config.ImagesAdmin.ImageEditorClass,
view.H3(image.TitleOrFilename()),
view.P(
view.A_blank(image.GetURL(), "Link to original"),
view.Printf(" | Used %d times", refCount),
),
view.DIV(Config.ImagesAdmin.ThumbnailFrameClass,
thumbnail.View(""),
),
&view.Form{
FormID: "edit" + image.ID.Get(),
SubmitButtonClass: Config.ImagesAdmin.ButtonClass,
GetModel: func(form *view.Form, ctx *view.Context) (interface{}, error) {
return &imageData{
Title: image.Title,
Filename: model.String(image.Filename()),
Link: image.Link,
}, nil
},
OnSubmit: func(form *view.Form, formModel interface{}, ctx *view.Context) (message string, redirect view.URL, err error) {
model := formModel.(*imageData)
image.Title = model.Title
image.Link = model.Link
for i := range image.Versions {
image.Versions[i].Filename = model.Filename
}
err = image.Save()
return "", view.StringURL("."), err
},
},
&view.Form{
SubmitButtonText: "Delete",
SubmitButtonConfirm: deleteConfirmation,
SubmitButtonClass: Config.ImagesAdmin.ButtonClass,
FormID: "delete" + image.ID.Get(),
OnSubmit: func(form *view.Form, formModel interface{}, ctx *view.Context) (message string, redirect view.URL, err error) {
err = image.RemoveAllRefs()
if err != nil {
return "", nil, err
}
return "", view.StringURL("."), image.Delete()
},
},
view.DivClearBoth(),
)
return editor, nil
},
},
}
}
func ImagesAdmin() view.View {
return view.Views{
UploadImageButton("", "", Config.Admin.ThumbnailSize, "function(){window.location.reload()}"),
view.HR(),
&view.Form{
SubmitButtonText: "Delete smaller image versions (they will be regenerated)",
SubmitButtonClass: Config.Admin.ButtonClass,
FormID: "deleteVersions",
OnSubmit: func(form *view.Form, formModel interface{}, ctx *view.Context) (message string, redirect view.URL, err error) {
var image Image
for i := ImageIterator(); i.Next(&image); {
err = image.DeleteVersions()
if err != nil {
return "", nil, err
}
err = image.Save()
if err != nil {
return "", nil, err
}
}
return "", view.StringURL("."), nil
},
},
&view.ModelIteratorView{
GetModelIterator: func(ctx *view.Context) model.Iterator {
return Config.Backend.ImageIterator()
},
GetModel: func(ctx *view.Context) (interface{}, error) {
return new(Image), nil
},
GetModelView: func(ctx *view.Context, m interface{}) (view.View, error) {
image := *m.(*Image) // copy by value because it will be used in a closure later on
refCount, err := image.CountRefs()
if err != nil {
return nil, err
}
thumbnail, err := image.Thumbnail(Config.Admin.ThumbnailSize)
if err != nil {
return nil, err
}
deleteConfirmation := fmt.Sprintf("Are you sure you want to delete the image %s?", image.Title)
if refCount > 0 {
deleteConfirmation += fmt.Sprintf(" It is used %d times!", refCount)
}
editor := view.DIV(Config.Admin.ImageEditorClass,
view.H3(image.Title.Get()),
view.P(view.A_blank(image.FileURL(), "Link to original") /*, view.Printf(" | Used %d times", refCount)*/),
view.P("Size in MB: ", view.Printf("%f", (float32)(image.Size.Get())/(1024.0*1024.0))),
view.DIV(Config.Admin.ThumbnailFrameClass,
thumbnail.View(""),
),
&view.Form{
FormID: "edit" + image.ID.Get(),
SubmitButtonClass: Config.Admin.ButtonClass,
GetModel: func(form *view.Form, ctx *view.Context) (interface{}, error) {
return &imageData{
Title: image.Title,
Filename: model.String(image.Filename()),
Link: image.Link,
}, nil
},
OnSubmit: func(form *view.Form, formModel interface{}, ctx *view.Context) (message string, redirect view.URL, err error) {
model := formModel.(*imageData)
image.Title = model.Title
image.Link = model.Link
for i := range image.Versions {
image.Versions[i].Filename = model.Filename
}
err = image.Save()
return "", view.StringURL("."), err
},
},
&view.Form{
SubmitButtonText: "Delete",
SubmitButtonConfirm: deleteConfirmation,
SubmitButtonClass: Config.Admin.ButtonClass,
FormID: "delete" + image.ID.Get(),
OnSubmit: func(form *view.Form, formModel interface{}, ctx *view.Context) (message string, redirect view.URL, err error) {
_, err = image.RemoveAllRefs()
if err != nil {
return "", nil, err
}
return "", view.StringURL("."), image.Delete()
},
},
view.DivClearBoth(),
)
return editor, nil
},
},
}
}