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author | Sverker Eriksson <[email protected]> | 2016-10-05 16:11:31 +0200 |
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committer | Sverker Eriksson <[email protected]> | 2016-10-05 16:11:31 +0200 |
commit | 502ed5fd6bd36328d6be63c68ee2a56738ced058 (patch) | |
tree | 80cfb83dd63ffa876541740cc067ea05bb39118d /lib/gs/examples/line_demo.erl | |
parent | cf102c1b1225450e7918a6119b7d949eb7e575c4 (diff) | |
parent | 0bac72a18e8a5f6a46baae9c9ac73bde32948ff6 (diff) | |
download | otp-502ed5fd6bd36328d6be63c68ee2a56738ced058.tar.gz otp-502ed5fd6bd36328d6be63c68ee2a56738ced058.tar.bz2 otp-502ed5fd6bd36328d6be63c68ee2a56738ced058.zip |
Merge branch 'master' into sverker/master/load_nif-print-init-error
Diffstat (limited to 'lib/gs/examples/line_demo.erl')
-rw-r--r-- | lib/gs/examples/line_demo.erl | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/lib/gs/examples/line_demo.erl b/lib/gs/examples/line_demo.erl deleted file mode 100644 index 25390d09b5..0000000000 --- a/lib/gs/examples/line_demo.erl +++ /dev/null @@ -1,82 +0,0 @@ -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2016. All Rights Reserved. -%% -%% Licensed under the Apache License, Version 2.0 (the "License"); -%% you may not use this file except in compliance with the License. -%% You may obtain a copy of the License at -%% -%% http://www.apache.org/licenses/LICENSE-2.0 -%% -%% Unless required by applicable law or agreed to in writing, software -%% distributed under the License is distributed on an "AS IS" BASIS, -%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -%% See the License for the specific language governing permissions and -%% limitations under the License. -%% -%% %CopyrightEnd% -%% - -%% -%% ------------------------------------------------------------ -%% A simple demo showing a line -%% bouncing within a window. -%% ------------------------------------------------------------ - --module(line_demo). --compile([{nowarn_deprecated_function,{gs,button,2}}, - {nowarn_deprecated_function,{gs,canvas,2}}, - {nowarn_deprecated_function,{gs,config,2}}, - {nowarn_deprecated_function,{gs,line,2}}, - {nowarn_deprecated_function,{gs,start,0}}, - {nowarn_deprecated_function,{gs,window,2}}]). - --export([start/0,init/0,line/3]). - -start() -> - spawn(line_demo,init,[]). - -init() -> - I= gs:start(), - W= gs:window(I,[{title,"Line Demo"},{width,300},{height,300},{map,true}]), - C= gs:canvas(W,[{width,300},{height,300},{bg,blue}]), - gs:button(W,[{label,{text,"Quit"}},{width,40},{bg,yellow}]), - Line2 = gs:line(C,[{coords,[{0,0},{50,50}]},{fg,white},{width,3}]), - line(Line2,{100,100,9.5,5},{0,0,-6,-8.4}). - - - -line(Line,{X1,Y1,DX1,DY1},{X2,Y2,DX2,DY2}) -> - {NX1,NDX1} = cc(X1,DX1), - {NY1,NDY1} = cc(Y1,DY1), - {NX2,NDX2} = cc(X2,DX2), - {NY2,NDY2} = cc(Y2,DY2), - gs:config(Line,{coords,[{NX1,NY1},{NX2,NY2}]}), - receive - {gs,_,click,_,_} -> exit(normal); - {gs,_,destroy,_,_} -> exit(normal) - after 50 -> - true - end, - line(Line,{NX1,NY1,NDX1,NDY1},{NX2,NY2,NDX2,NDY2}). - -cc(X,DX) -> - if - DX>0 -> - if - X<300 -> - {X+DX,DX}; - x>=300 -> - {X-DX,-DX} - end; - DX<0 -> - if - X>0 -> - {X+DX,DX}; - X=<0 -> - {X-DX,-DX} - end - end. - -%% ------------------------------------------------------------ |