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106 lines
2.6 KiB
ObjectPascal
106 lines
2.6 KiB
ObjectPascal
{
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Copyright (c) 1997-2008 by the Daniel Mantione
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Debug expression evaluator dialog ?
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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unit fpevalw;
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{****************************************************************************}
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interface
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{****************************************************************************}
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uses fpdebug,dialogs,views,objects,fpconst,drivers;
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type Pevaluate_dialog=^Tevaluate_dialog;
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Tevaluate_dialog=object(Tdialog)
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watch:Pwatch;
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expr_input,expr_output:Pinputline;
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constructor init(var bounds:Trect);
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procedure evaluate;
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procedure handleevent(var event:Tevent);virtual;
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destructor done;
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end;
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{****************************************************************************}
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implementation
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{****************************************************************************}
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constructor Tevaluate_dialog.init(var bounds:Trect);
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var r:Trect;
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l:Plabel;
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b:Pbutton;
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begin
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inherited init(bounds,'Evaluate expression');
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options:=options or ofcentered;
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{watch is auto initialized to nil.}
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r.assign(2,3,size.x-20,4);
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new(expr_input,init(r,255));
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insert(expr_input);
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r.assign(size.x-20,3,size.x-18,4);
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insert(new(Phistory,init(r,expr_input,hidEvaluate)));
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r.assign(2,2,size.x-20,3);
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new(l,init(r,'E~x~pression:',expr_input));
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insert(l);
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r.assign(2,6,size.x-20,7);
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new(expr_output,init(r,255));
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insert(expr_output);
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r.assign(2,5,size.x-20,6);
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new(l,init(r,'~R~esult:',expr_output));
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insert(l);
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r.assign(size.x-14,3,size.x-3,5);
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new(b,init(r,'~E~valuate',cmEvaluate,bfDefault));
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insert(b);
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r.assign(size.x-14,6,size.x-3,8);
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new(b,init(r,'Help',cmHelp,bfNormal));
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insert(b);
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expr_input^.select;
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end;
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procedure Tevaluate_dialog.evaluate;
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begin
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if watch<>nil then
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dispose(watch,done);
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new(watch,init(expr_input^.data^));
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expr_output^.data^:=strpas(watch^.current_value);
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expr_output^.drawview;
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end;
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procedure Tevaluate_dialog.handleevent(var event:Tevent);
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begin
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inherited handleevent(event);
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if event.what=evCommand then
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case event.command of
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cmEvaluate:
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evaluate;
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end;
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end;
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destructor Tevaluate_dialog.done;
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begin
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if watch<>nil then
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dispose(watch,done);
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end;
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end.
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