58 lines
1.6 KiB
Elixir
58 lines
1.6 KiB
Elixir
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--# Passing data using a single map, accessed by field name;
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include GtkEngine.e
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include std/map.e
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constant docs = `<u><b>Passing data using a Map</b></u>
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Another way to attach data to controls,
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and retrieve data by field-name.
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This stores all data in a single map.
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Fields can be entered in random order, but
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each field must be named.
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`
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object x = map:new() -- using named fields, so can be in random order;
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map:put(x,"jerry","name=Jerry Smith,bal=39.99,age=15,pix=thumbnails/Jerry.jpg")
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map:put(x,"justin","name=Justin Jones,pix=thumbnails/Justin.jpg,age=14,bal=12.99")
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constant win = create(GtkWindow,"border=10,size=300x100,position=1,$destroy=Quit")
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constant panel = create(GtkBox,"orientation=VERTICAL")
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add(win,panel)
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constant lbl = create(GtkLabel)
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set(lbl,"markup",docs)
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add(panel,lbl)
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constant
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btn1 = create(GtkButton,"gtk-quit","Quit"),
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btn2 = create(GtkButton,"gtk-ok#Jerry","ShowInfo","jerry"),-- linked by names;
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btn3 = create(GtkButton,"gtk-ok#Justin","ShowInfo","justin"),
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box = create(GtkButtonBox)
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pack(panel,-box)
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add(box,{btn1,btn2,btn3})
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show_all(win)
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main()
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------------------------------------------------
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global function ShowInfo(atom ctl, object who)
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------------------------------------------------
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who = unpack(who) -- retrieve passed name (e.g. jerry)
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object data = keyvalues(map:get(x,who),,,,"\t\n\r")
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for i = 1 to length(data) do
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data[i] = text:format("[]=[]",data[i])
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end for
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display(data)
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Info(,,
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format("[{name}]",data), -- retrieve items by key;
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format(" age: [{age}]\n bal: $[{bal}]",data),,
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format("[{pix}]",data))
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return 1
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end function
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