123 lines
3.3 KiB
ObjectPascal
123 lines
3.3 KiB
ObjectPascal
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{-----------------------------------------------------------------------------
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The contents of this file are subject to the Mozilla Public License
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Version 1.1 (the "License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.mozilla.org/MPL/MPL-1.1.html
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Software distributed under the License is distributed on an "AS IS" basis,
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WITHOUT WARRANTY OF ANY KIND, either expressed or implied. See the License for
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the specific language governing rights and limitations under the License.
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The Original Code is: JvImageRotate.PAS, released on 2001-02-28.
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The Initial Developer of the Original Code is S<EFBFBD>bastien Buysse [sbuysse att buypin dott com]
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Portions created by S<EFBFBD>bastien Buysse are Copyright (C) 2001 S<EFBFBD>bastien Buysse.
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All Rights Reserved.
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Contributor(s):
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Michael Beck [mbeck att bigfoot dott com].
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Extracted from JvImageThread and saved to a new unit by Peter Th<EFBFBD>rnqvist
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You may retrieve the latest version of this file at the Project JEDI's JVCL home page,
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located at http://jvcl.delphi-jedi.org
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Known Issues:
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-----------------------------------------------------------------------------}
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// $Id: JvImageDrawThread.pas 12461 2009-08-14 17:21:33Z obones $
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unit JvImageDrawThread;
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{$I jvcl.inc}
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interface
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uses
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{$IFDEF UNITVERSIONING}
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JclUnitVersioning,
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{$ENDIF UNITVERSIONING}
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JvThread,
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Windows,
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Classes;
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type
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TJvImageDrawThread = class(TJvPausableThread)
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private
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FTag: Integer;
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FDelay: Cardinal;
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FOnDraw: TNotifyEvent;
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protected
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procedure Draw;
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procedure Execute; override;
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public
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procedure Synchronize(AMethod: TThreadMethod); overload;
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{$IFDEF RTL200_UP}
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procedure Synchronize(AThreadProc: TThreadProcedure); overload;
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{$ENDIF RTL200_UP}
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property Tag: Integer read FTag write FTag;
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property Delay: Cardinal read FDelay write FDelay;
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property OnDraw: TNotifyEvent read FOnDraw write FOnDraw;
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property Terminated;
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end;
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{$IFDEF UNITVERSIONING}
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const
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UnitVersioning: TUnitVersionInfo = (
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RCSfile: '$URL: https://jvcl.svn.sourceforge.net/svnroot/jvcl/tags/JVCL3_39/run/JvImageDrawThread.pas $';
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Revision: '$Revision: 12461 $';
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Date: '$Date: 2009-08-14 19:21:33 +0200 (ven., 14 août 2009) $';
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LogPath: 'JVCL\run'
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);
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{$ENDIF UNITVERSIONING}
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implementation
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procedure TJvImageDrawThread.Draw;
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begin
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if not Terminated and Assigned(FOnDraw) then
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FOnDraw(Self);
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end;
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procedure TJvImageDrawThread.Execute;
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begin
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try
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while not Terminated do
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begin
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Sleep(FDelay);
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EnterUnpauseableSection;
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try
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if Terminated then
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Exit;
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Synchronize(Draw);
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finally
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LeaveUnpauseableSection;
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end;
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end;
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except
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// ignore exception
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end;
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end;
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procedure TJvImageDrawThread.Synchronize(AMethod: TThreadMethod);
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begin
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inherited Synchronize(AMethod);
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end;
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{$IFDEF RTL200_UP}
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procedure TJvImageDrawThread.Synchronize(AThreadProc: TThreadProcedure);
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begin
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inherited Synchronize(AThreadProc);
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end;
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{$ENDIF RTL200_UP}
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{$IFDEF UNITVERSIONING}
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initialization
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RegisterUnitVersion(HInstance, UnitVersioning);
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finalization
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UnregisterUnitVersion(HInstance);
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{$ENDIF UNITVERSIONING}
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end.
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