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Diffstat (limited to 'lib/gs/doc/src/examples/ex15.erl')
-rw-r--r-- | lib/gs/doc/src/examples/ex15.erl | 30 |
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). |