func (this *ProcChainBuilder) getLogoWaterMarkProcessor(channel string, params map[string]string) (proc.ImageProcessor, error) {
dissolve := this.getLogoDissolve(channel, params)
logodir, err := data.GetLogodir(channel)
if err != nil {
return nil, err
}
wn, _ := params["wn"]
wl, _ := params["wl"]
if wn == "" {
defaultlogo, err := data.GetDefaultLogo(channel)
if err != nil {
return nil, err
}
arr := strings.Split(defaultlogo, ",")
if len(arr) == 2 {
wn = arr[0]
wl = arr[1]
}
}
if wn == "" {
return nil, nil
}
//check watermarkname
logonames, err := data.GetLogoNames(channel)
if err != nil {
return nil, err
}
if !strings.Contains(logonames, JoinString(",", wn, ",")) {
return nil, errors.New(JoinString("channel: ", channel, ", reason: not support watermark ", wn))
}
//check size
lesswidth, err := data.GetImagelesswidthForLogo(channel)
if err != nil {
return nil, err
}
lessheight, err := data.GetImagelessheightForLogo(channel)
if err != nil {
return nil, err
}
if lesswidth > 0 || lessheight > 0 {
widthVal, _ := params[":3"]
heightVal, _ := params[":4"]
w, _ := strconv.ParseInt(widthVal, 10, 64)
h, _ := strconv.ParseInt(heightVal, 10, 64)
if !(w >= lesswidth && h >= lessheight) {
return nil, nil
}
}
l, err := strconv.Atoi(wl)
if err != nil {
l = 9
}
var path = logodir + wn + ".png"
bts, err := GetImage("NFS", path, this.Cat)
if err != nil {
return nil, err
}
logo := &img4g.Image{Format: "png", Blob: bts, Cat: this.Cat}
return &proc.WaterMarkProcessor{Logo: logo, Location: l, Dissolve: dissolve, Cat: this.Cat, WaterMarkType: "WaterMark"}, nil
}
func (this *ProcChainBuilder) getDigitalWatermarkProcessor(channel string, params map[string]string) (proc.ImageProcessor, error) {
dwm, _ := params["dwm"]
if dwm == "" {
return nil, nil
}
copyrightdir, err := data.GetLogodir(channel)
if err != nil {
return nil, err
}
bts, err := GetImage("NFS", copyrightdir+"copy.jpg", this.Cat)
if err != nil {
return nil, err
}
copyright := &img4g.Image{Format: "jpg", Blob: bts, Cat: this.Cat}
return &proc.DigitalWatermarkProcessor{copyright, this.Cat}, nil
}