david
78ab77cd4c
git-svn-id: https://192.168.0.254/svn/Componentes.Terceros.jvcl@19 7f62d464-2af8-f54e-996c-e91b33f51cbe
124 lines
4.2 KiB
ObjectPascal
124 lines
4.2 KiB
ObjectPascal
{-----------------------------------------------------------------------------
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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: JvAppStoragePropertyEngineDB.pas, released on 2005-01-13.
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The Initial Developer of the Original Code is Jens Fudickar
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Portions created by Jens Fudickar are Copyright (C) 2005 Jens Fudickar
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All Rights Reserved.
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Contributor(s):
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Olivier Sannier
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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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Description:
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Known Issues:
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-----------------------------------------------------------------------------}
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// $Id: JvAppStoragePropertyEngineDB.pas 12461 2009-08-14 17:21:33Z obones $
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unit JvAppStoragePropertyEngineDB;
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{$I jvcl.inc}
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interface
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{$IFDEF UNITVERSIONING}
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uses
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JclUnitVersioning;
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{$ENDIF UNITVERSIONING}
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procedure RegisterAppStoragePropertyEngines;
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{$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/JvAppStoragePropertyEngineDB.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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uses
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Classes, DBGrids,
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JvJCLUtils, JvAppStorage;
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type
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TJvAppStoragePropertyDBGridColumnsEngine = class(TJvAppStoragePropertyBaseEngine)
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public
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function Supports(AObject: TObject; AProperty: TObject): Boolean; override;
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procedure ReadProperty(AStorage: TJvCustomAppStorage; const APath: string;
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AObject: TObject; AProperty: TObject; const Recursive, ClearFirst: Boolean); override;
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procedure WriteProperty(AStorage: TJvCustomAppStorage; const APath: string;
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AObject: TObject; AProperty: TObject; const Recursive: Boolean); override;
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end;
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//=== { TJvAppStoragePropertyDBGridColumnsEngine } ===========================
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function TJvAppStoragePropertyDBGridColumnsEngine.Supports(AObject: TObject; AProperty: TObject): Boolean;
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begin
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Result := Assigned(AProperty) and (AProperty is TDBGridColumns);
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end;
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type
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TAccessCustomDBGrid = class(TCustomDBGrid);
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procedure TJvAppStoragePropertyDBGridColumnsEngine.ReadProperty(AStorage: TJvCustomAppStorage;
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const APath: string; AObject: TObject; AProperty: TObject; const Recursive, ClearFirst: Boolean);
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begin
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if Assigned(AObject) and (AObject is TCustomDBGrid) then
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TAccessCustomDBGrid(AObject).BeginLayout;
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try
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if Assigned(AProperty) and (AProperty is TDBGridColumns) then
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AStorage.ReadCollection(APath, TCollection(AProperty), ClearFirst);
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finally
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if Assigned(AObject) and (AObject is TCustomDBGrid) then
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TAccessCustomDBGrid(AObject).EndLayout;
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end;
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end;
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procedure TJvAppStoragePropertyDBGridColumnsEngine.WriteProperty(AStorage: TJvCustomAppStorage;
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const APath: string; AObject: TObject; AProperty: TObject; const Recursive: Boolean);
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begin
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if Assigned(AProperty) and (AProperty is TDBGridColumns) then
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AStorage.WriteCollection(APath, TCollection(AProperty));
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end;
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//=== Global =================================================================
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procedure RegisterAppStoragePropertyEngines;
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begin
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RegisterAppStoragePropertyEngine(TJvAppStoragePropertyDBGridColumnsEngine);
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end;
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procedure UnregisterAppStoragePropertyEngines;
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begin
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UnregisterAppStoragePropertyEngine(TJvAppStoragePropertyDBGridColumnsEngine);
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end;
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initialization
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{$IFDEF UNITVERSIONING}
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RegisterUnitVersion(HInstance, UnitVersioning);
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{$ENDIF UNITVERSIONING}
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RegisterAppStoragePropertyEngines;
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finalization
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UnregisterAppStoragePropertyEngines;
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{$IFDEF UNITVERSIONING}
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UnregisterUnitVersion(HInstance);
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{$ENDIF UNITVERSIONING}
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end.
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