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authorErlang/OTP <[email protected]>2009-11-20 14:54:40 +0000
committerErlang/OTP <[email protected]>2009-11-20 14:54:40 +0000
commit84adefa331c4159d432d22840663c38f155cd4c1 (patch)
treebff9a9c66adda4df2106dfd0e5c053ab182a12bd /lib/gs/doc/src/examples/ex11.erl
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The R13B03 release.OTP_R13B03
Diffstat (limited to 'lib/gs/doc/src/examples/ex11.erl')
-rw-r--r--lib/gs/doc/src/examples/ex11.erl42
1 files changed, 42 insertions, 0 deletions
diff --git a/lib/gs/doc/src/examples/ex11.erl b/lib/gs/doc/src/examples/ex11.erl
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index 0000000000..96343c3c22
--- /dev/null
+++ b/lib/gs/doc/src/examples/ex11.erl
@@ -0,0 +1,42 @@
+-module(ex11).
+-copyright('Copyright (c) 1991-97 Ericsson Telecom AB').
+-vsn('$Revision: /main/release/3 $ ').
+
+-export([start/0,init/0]).
+
+start() ->
+ spawn(ex11,init,[]).
+
+init() ->
+ I= gs:start(),
+ W= gs:window(I,[{title,"Color Demo"},
+ {width,300},{height,195}]),
+ B=gs:button(W,[{label,{image,"die_icon"}},{x,271},{y,166},
+ {width,30}]),
+ gs:config(B,[{bg,yellow},{fg,hotpink1},{data,quit}]),
+ gs:scale(W,[{text,"Red"},{y,0},{range,{0,255}},
+ {orient,horizontal},
+ {height,65},{data,red},{pos,42}]),
+ gs:scale(W,[{text,"Blue"},{y,65},{range,{0,255}},
+ {orient,horizontal},
+ {height,65},{data,blue},{pos,42}]),
+ gs:scale(W,[{text,"Green"},{y,130},{range,{0,255}},
+ {orient,horizontal},
+ {height,65},{data,green},{pos,42}]),
+ gs:config(W,{map,true}),
+ loop(W,0,0,0).
+
+loop(W,R,G,B) ->
+ gs:config(W,{bg,{R,G,B}}),
+ receive
+ {gs,_,click,red,[New_R|_]} ->
+ loop(W,New_R,G,B);
+ {gs,_,click,green,[New_G|_]} ->
+ loop(W,R,New_G,B);
+ {gs,_,click,blue,[New_B|_]} ->
+ loop(W,R,G,New_B);
+ {gs,_,click,quit,_} ->
+ true;
+ {gs,W,destroy,_,_} ->
+ true
+ end.