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| ///////////////////////////////////////////////////////////////////////////
// //
// Copyright (c) 2015 by Charta Software B.V. //
// All rights reserved //
// //
// Version: 1.7.0.83525 //
// Web site: https://pascal.chartasoftware.com/ //
// //
// This code and information are provided "as is" without warranty of //
// any kind. Dissemination of this information or reproduction of //
// this material is strictly forbidden unless prior written permission //
// is obtained from Charta Software B.V.. //
// //
///////////////////////////////////////////////////////////////////////////
unit Progress;
interface
uses
FloatingPoint._64,
Integer;
type
TProgress = record
public
Step: TInteger;
Total: TInteger;
function ToFloatingPoint64(): TFloatingPoint64;
public
class operator Implicit(const Value: TFloatingPoint64): TProgress;
class operator Implicit(const Value: TProgress): TFloatingPoint64;
class operator Add(const Left: TProgress; const Right: TProgress): TProgress;
end;
implementation
uses
Mathematics;
{ TProgress }
class operator TProgress.Implicit(const Value: TFloatingPoint64): TProgress;
const
Scale = 10000;
begin
Result.Total := Scale;
Result.Step := RoundToNearest(Scale * Value);
end;
class operator TProgress.Add(const Left: TProgress; const Right: TProgress): TProgress;
begin
Result.Step := Left.Step + Right.Step;
Result.Total := Left.Total + Right.Total;
end;
class operator TProgress.Implicit(const Value: TProgress): TFloatingPoint64;
begin
Result := Value.ToFloatingPoint64();
end;
function TProgress.ToFloatingPoint64(): TFloatingPoint64;
begin
if Total > 0 then
Result := Step / Total
else
Result := 0;
end;
end.
|