------------------------------------------------------------------------
--#  Setting background colors - links don't work on Windows.
------------------------------------------------------------------------

include GtkEngine.e
include std/net/url.e

constant helpfile = canonical_path("~/demos/documentation/HowItWorks.html#colors")

constant docs = sprintf(`<u><b>Random Colors</b></u>
Click the button to choose
a new color. See <a href='%s'>%s</a> 
for more info.`,
{helpfile,"Colors"})

constant win = create(GtkWindow,
    "title=`Random Colors`,size=200x120,border=10,position=1,$destroy=Quit")
 
constant panel = create(GtkBox,VERTICAL)
    add(win,panel)

constant lbl = create(GtkLabel)
    set(lbl,"markup",docs)
    add(panel,lbl)

atom img = create(GtkImage,"thumbnails/tiphat1.gif")
    add(panel,img)

constant btn = create(GtkButton,"gtk-refresh",_("RandomColor"))
    set(btn,"tooltip text","Click for random color")
    pack(panel,-btn)

show_all(win)
main()

------------------------------------------------------------------------
function RandomColor()
------------------------------------------------------------------------
object randy = rand(#ffffff)
    set(win,"background",randy) 
    set(win,"title",sprintf("#%06x",randy))
return 1
end function
 
-- In this demo, we set the color in numeric (hex) form,
-- because rand() can do this for us very easily.
-- then we convert it to string form to display on titlebar