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{ lNet Timer
CopyRight (C) 2006-2008 Micha Nelissen
This library is Free software; you can rediStribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This program is diStributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; withOut even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
for more details.
You should have received a Copy of the GNU Library General Public License
along with This library; if not, Write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
This license has been modified. See File LICENSE.ADDON for more inFormation.
Should you find these sources without a LICENSE File, please contact
me at ales@chello.sk
}
unit ltimer;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils;
type
{ TLTimer }
TLTimer = class(TObject)
protected
FOnTimer: TNotifyEvent;
FInterval: TDateTime;
FStarted: TDateTime;
FOneShot: Boolean;
FEnabled: Boolean;
function GetInterval: Integer;
procedure SetInterval(const aValue: Integer);
public
procedure CallAction;
property Enabled: Boolean read FEnabled write FEnabled;
property Interval: Integer read GetInterval write SetInterval;
property OneShot: Boolean read FOneShot write FOneShot;
property OnTimer: TNotifyEvent read FOnTimer write FOnTimer;
end;
implementation
{ TLTimer }
function TLTimer.GetInterval: Integer;
begin
Result := Round(FInterval * MSecsPerDay);
end;
procedure TLTimer.SetInterval(const aValue: Integer);
begin
FInterval := AValue / MSecsPerDay;
FStarted := Now;
FEnabled := true;
end;
procedure TLTimer.CallAction;
begin
if FEnabled and Assigned(FOnTimer) and (Now - FStarted >= FInterval) then
begin
FOnTimer(Self);
if not FOneShot then
FStarted := Now
else
FEnabled := false;
end;
end;
end.
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