Add image from file on local server

[Tony Falcone]

This should be easy to do, but for some reason I am having trouble. I want to load an image (png) that resides on the same host that is running the (gowut) server. Since NewImage() expects a url, I have encoded this as "file:///path_to_file"; however, the image does not display, even though when I view the source, I can see the correct url in the src tag of the img element. (And, when I cut and paste the "file:///path_to_file" in a new browser window's address bar, the image does display.)

What am I missing? Any help would be appreciated.

Thanks,

Tony

[Glen Newton]

It should not be encoded as "file://..."

From the docs: https://godoc.org/github.com/icza/gowut/gwu#Server

  // Then request for absolute path "/appname/img/faces/happy.gif" will serve
  // "/tmp/myimg/faces/happy.gif", just as the the request for relative path "img/faces/happy.gif".

Remember the browser is interpreting the image location, and it needs to point to an http endpoint to get the image. The endpoint is your gowut app serving the image.

Glen

[Tony Falcone]

Thanks. I am a little embarrassed for not having found that myself; it is very useful (obviously) to be able to bind locations on the server in that manner.

It is in fact so useful (and necessary when wanting to provide content that resides on the server host) that I am wondering if I missed it in any of the examples: I used these to guide me.

Thanks again,

Tony

[András Belicza]

As Glen noted, you may use Server.AddStaticDir() to "register" a folder of yours whose content will be served by the Gowut server, and so you can use relative paths to refer to files in them, including images.

[András Belicza]

What is the absolute path of logo.gif? Is it "/home/adm/go/src/adm/gups/pict/logo.gif"? If so, "/UPS/pic/logo.gif" should work.

Note that there is an additional letter "t" at the end of the path you register:

    server.AddStaticDir("pic", "/home/adm/go/src/adm/gups/pict")

If it was not intentional, that might cause the trouble. and this should fix it:

    server.AddStaticDir("pic", "/home/adm/go/src/adm/gups/pic")

Regards,

Andras

On Thu, Feb 15, 2018 at 2:21 PM, Акашкин Денис <akaa...@gmail.com> wrote:

But, may be anyone had the working code sample? I use AddStaticDir func this (wrong) way:

   

    server := gwu.NewServer("UPS", str_localhost_port)
    server.SetText("* ИБП Титан *")
    server.AddStaticDir("pic", "/home/adm/go/src/adm/gups/pict")

    img := gwu.NewImage("PSDlogo", "pic/logo.gif") // not works
    //img := gwu.NewImage("PSDlogo", "/UPS/pic/logo.gif") // doesn't work
    //img := gwu.NewImage("PSDlogo", "192.168.0.20/UPS/pic/logo.gif") // doesn't work too
    //img := gwu.NewImage("PSDlogo", "http://localhost/UPS/pic/logo.gif") // doesn't work also
    img.Style().SetSizePx(275, 95)
    win.Add(img)

logo.gif is inside /home/adm/go/src/adm/gups/pict ,
but browser does not render this image .


среда, 29 марта 2017 г., 15:49:29 UTC+3 пользователь Tony Falcone написал:

[Акашкин Денис]

Оh, Im sorry, all works. Full code fragment:

   

server := gwu.NewServer("UPS", str_localhost_port)

    server.AddStaticDir("pic", "/home/adm/go/src/adm/gups/pict")

    // Create and build a window
    win := gwu.NewWindow("main", "UPS info")
    win.Style().SetFullWidth()
    win.SetHAlign(gwu.HACenter)
    win.SetCellPadding(2)

    img := gwu.NewImage("PSDlogo", "pic/logo.png")
    img.Style().SetSizePx(275, 95)
    win.Add(img)
 //......
    server.AddWin(win)
    server.Start("main")

My mistake was that I..  foolish stupid. Sorry)

[Акашкин Денис]

Yes, it works. 

16 февр. 2018 г. 1:30 пользователь "András Belicza" <icz...@gmail.com> написал: