The R13B03 release.OTP_R13B03

1 files changed, 30 insertions, 0 deletions

diff --git a/lib/gs/doc/src/examples/ex15.erl b/lib/gs/doc/src/examples/ex15.erl
new file mode 100644
index 0000000000..864bdd93b2
--- /dev/null
+++ b/lib/gs/doc/src/examples/ex15.erl
@@ -0,0 +1,30 @@
+-module(ex15).
+-copyright('Copyright (c) 1991-97 Ericsson Telecom AB').
+-vsn('$Revision: /main/release/3 $ ').
+
+-export([start/0,init/0]).
+
+start() -> spawn(ex15, init, []).
+
+init() ->
+    I=gs:start(),
+    Win=gs:create(window, I,
+                  [{width, 400},{height, 250},
+                   {title,"Font Demo"},{map, true}]),
+    E = gs:create(canvas, can1,Win,
+		  [{x,0},{y, 0},{width,400},{height,250}]),
+    Fonts = [{times,19},{screen,16},{helvetica,bold,21},
+	     {symbol,12},{times,[bold,italic],33},{courier,6}],
+    show_fonts_in_boxes(Fonts,0),
+    receive
+	{gs,_Id,destroy,_Data,_Arg} -> bye
+    end.
+
+show_fonts_in_boxes([],_) -> done;
+show_fonts_in_boxes([Font|Fonts],Y) ->
+    Txt = io_lib:format("Hi! ~p",[Font]),
+    {Width,Height} = gs:read(can1,{font_wh,{Font,Txt}}),
+    Y2=Y+Height+2,
+    gs:create(rectangle,can1,[{coords,[{0,Y},{Width,Y2}]}]),
+    gs:create(text,can1,[{font,Font},{text,Txt},{coords,[{0,Y+1}]}]),
+    show_fonts_in_boxes(Fonts,Y2+1).