// Execute write qrcode image to response
func (qrcode *QrCodeResult) Execute(ctx *wk.HttpContext) error {
c, err := qr.Encode(qrcode.Text, qr.M)
if err != nil {
log.Println("QrCodeResult Execute Error", err)
return err
}
png := c.PNG()
//ioutil.WriteFile(qrcode.Text+"_demo.png", png, 0666)
ctx.ContentType("image/png")
ctx.Write(png)
return nil
}
func printTrace(ctx *wk.HttpContext, trace []EventTrace) {
if len(trace) == 0 {
return
}
var buffer bytes.Buffer
indent := 0
s := " "
offset := trace[0].Timestamp
buffer.WriteString("\n")
//buffer.WriteString(fmt.Sprintf("url:%v \n", ctx.Request.URL))
//buffer.WriteString(strings.Repeat("-", 10))
//buffer.WriteString("\n")
buffer.WriteString("<script>\n")
buffer.WriteString("var pageProfiler = \"")
for _, t := range trace {
if strings.HasPrefix(t.Name, "end_") && indent > 0 {
indent--
}
buffer.WriteString(strings.Repeat(s, indent))
//buffer.WriteString(fmt.Sprintf("%s\t %s\t %d \n", t.Module, t.Name, t.Timestamp-offset))
buffer.WriteString(fmt.Sprintf("%s\t %s\t %d ns \\n", t.Module, t.Name, t.Timestamp-offset))
if strings.HasPrefix(t.Name, "start_") {
indent++
}
}
//buffer.WriteString(strings.Repeat("-", 10))
//buffer.WriteString("\n")
buffer.WriteString("\";")
buffer.WriteString("\n</script>\n")
ctx.Write(buffer.Bytes())
}