how to use <IMG> tag with .dmi files in Developer Help

ID:159557
 
Feb 18 2009, 5:13 pm
I've been told that your icon files are already in the resource cache, so you do not need to use browse_rsc to display them.

My question is how do you use the < IMG > tag to display a specific icon? I do not want to /icon macro, because I am defining the HTML in a const var. I simply want to reference the icon file, and the icon state and I need to know the exact syntax to do this.
#1 Feb 18 2009, 7:31 pm
You can't browse() them, because browse() uses Internet Explorer to display the HTML. It does seem to display .dmi files, but not icon states.
For a .dmi file with only one icon state, just use
<img src="myfile.dmi" style="width: 32px; height: 32px;">

in your html.
If you want one state from a file, you need to create an /icon object with that state, browse_rsc() it (with a file name; that will create a file in the resource cache with just that state that the client can access) and display it as above.
#2 Feb 18 2009, 7:44 pm
In response to Immibis (#1)
It seems kind of ridiculous to me that you can't display specific iconstates. In the example code for the /icon text macro, it uses the ICONSTATE img tag attribute, but I have never been able to get it to work.

even the entry in Tags (text) for is

//display icons


So one would think that you'd be able to use it to display icons...
#3 Feb 18 2009, 7:45 pm
In response to GauHelldragon (#2)
It works in the output, ie src << "text..." or world << "text..."
But not in browse() because Internet Explorer doesn't understand ICONSTATE.
#4 Feb 18 2009, 9:49 pm
In response to Immibis (#3)
Hm. Fair enough. I ended up using regular image files instead of trying to use the ingame icons.
#5 Feb 18 2009, 10:12 pm
In response to GauHelldragon (#4)
 
client/proc/browse_rsc_icon(icon, icon_state)
    var/icon/i = new(icon, icon_state)
    src << browse_rsc(i, "[icon]_[icon_state].png") // dmi files are just png files with the extension .dmi, using .png may make this more compatible with different versions of IE

Call browse_rsc_icon with an icon and icon state to send that icon state to the client.
To display an icon (after using browse_rsc_icon):
<img src="[icon]_[icon_state].png" style="width: 32px; height: 32px;">