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Diffstat (limited to 'lib/gs/examples/calc.erl')
| -rw-r--r-- | lib/gs/examples/calc.erl | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/lib/gs/examples/calc.erl b/lib/gs/examples/calc.erl deleted file mode 100644 index 6a58475f13..0000000000 --- a/lib/gs/examples/calc.erl +++ /dev/null @@ -1,114 +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 Calculator demo in Erlang -%% ------------------------------------------------------------ - --module(calc). --compile([{nowarn_deprecated_function,{gs,button,2}}, - {nowarn_deprecated_function,{gs,config,2}}, - {nowarn_deprecated_function,{gs,label,2}}, - {nowarn_deprecated_function,{gs,start,0}}, - {nowarn_deprecated_function,{gs,window,2}}]). - --export([start/0,calc/0]). - -start() -> - spawn(calc,calc,[]). - -calc() -> - I = gs:start(), - Win = gs:window(I,[{title,"Calc1"},{width,120},{height,150}]), - Label = gs:label(Win,[{label,{text,"0"}},{width,120}]), - B1 = gs:button(Win,[{label,{text,"1"}},{width,30},{x,0},{y,30}]), - B2 = gs:button(Win,[{label,{text,"2"}},{width,30},{x,30},{y,30}]), - B3 = gs:button(Win,[{label,{text,"3"}},{width,30},{x,60},{y,30}]), - B4 = gs:button(Win,[{label,{text,"4"}},{width,30},{x,0},{y,60}]), - B5 = gs:button(Win,[{label,{text,"5"}},{width,30},{x,30},{y,60}]), - B6 = gs:button(Win,[{label,{text,"6"}},{width,30},{x,60},{y,60}]), - B7 = gs:button(Win,[{label,{text,"7"}},{width,30},{x,0},{y,90}]), - B8 = gs:button(Win,[{label,{text,"8"}},{width,30},{x,30},{y,90}]), - B9 = gs:button(Win,[{label,{text,"9"}},{width,30},{x,60},{y,90}]), - B0 = gs:button(Win,[{label,{text,"0"}},{width,60},{x,0},{y,120}]), - C = gs:button(Win,[{label,{text,"C"}},{width,30},{x,60},{y,120}]), - AC = gs:button(Win,[{label,{text,"AC"}},{width,30},{x,90},{y,120},{fg,red}]), - Plus = gs:button(Win,[{label,{text,"+"}},{width,30},{x,90},{y,30}]), - Times = gs:button(Win,[{label,{text,"*"}},{width,30},{x,90},{y,60}]), - Minus = gs:button(Win,[{label,{text,"-"}},{width,30},{x,90},{y,90}]), - gs:config(Win,{map,true}), - Ids = [Label,B0,B1,B2,B3,B4,B5,B6,B7,B8,B9,Minus,Plus,Times,C,AC], - calc_loop(Ids,0,0,'+'). - -calc_loop(Ids,M,V,Op) -> - [_Label,B0,B1,B2,B3,B4,B5,B6,B7,B8,B9,Minus,Plus,Times,C,AC] = Ids, - receive - {gs,B0,click,_,_} -> digit_press(Ids,M,V*10+0,Op); - {gs,B1,click,_,_} -> digit_press(Ids,M,V*10+1,Op); - {gs,B2,click,_,_} -> digit_press(Ids,M,V*10+2,Op); - {gs,B3,click,_,_} -> digit_press(Ids,M,V*10+3,Op); - {gs,B4,click,_,_} -> digit_press(Ids,M,V*10+4,Op); - {gs,B5,click,_,_} -> digit_press(Ids,M,V*10+5,Op); - {gs,B6,click,_,_} -> digit_press(Ids,M,V*10+6,Op); - {gs,B7,click,_,_} -> digit_press(Ids,M,V*10+7,Op); - {gs,B8,click,_,_} -> digit_press(Ids,M,V*10+8,Op); - {gs,B9,click,_,_} -> digit_press(Ids,M,V*10+9,Op); - {gs,Minus,click,_,_} -> calc(Ids,Op,M,V,'-'); - {gs,Plus,click,_,_} -> calc(Ids,Op,M,V,'+'); - {gs,Times,click,_,_} -> calc(Ids,Op,M,V,'*'); - {gs,AC,click,_,_} -> ac(Ids,M,V,Op); - {gs,C,click,_,_} -> c(Ids,M,V,Op); - {gs,_,destroy,_,_} -> exit(normal); - _Other -> calc_loop(Ids,M,V,Op) - end. - -digit_press(Ids,M,V,Op) -> - [Label|_]=Ids, - gs:config(Label,[{label,{text,V}}]), - calc_loop(Ids,M,V,Op). - -calc(Ids,'+',M,V,Op) -> - NewM = M + V, - [Label|_]=Ids, - gs:config(Label,[{label,{text,NewM}}]), - calc_loop(Ids,NewM,0,Op); -calc(Ids,'-',M,V,Op) -> - NewM = M - V, - [Label|_]=Ids, - gs:config(Label,[{label,{text,NewM}}]), - calc_loop(Ids,NewM,0,Op); -calc(Ids,'*',M,V,Op) -> - NewM = M * V, - [Label|_]=Ids, - gs:config(Label,[{label,{text,NewM}}]), - calc_loop(Ids,NewM,0,Op). - -c(Ids,M,_V,Op) -> - [Label|_]=Ids, - gs:config(Label,[{label,{text,0}}]), - calc_loop(Ids,M,0,Op). - -ac(Ids,_M,_V,_Op) -> - [Label|_]=Ids, - gs:config(Label,[{label,{text,0}}]), - calc_loop(Ids,0,0,'+'). - -%% ------------------------------------------------------------ |