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137 lines
3.0 KiB
ObjectPascal
137 lines
3.0 KiB
ObjectPascal
(* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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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 express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is TurboPower SysTools
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*
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* The Initial Developer of the Original Code is
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* TurboPower Software
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*
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* Portions created by the Initial Developer are Copyright (C) 1996-2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* ***** END LICENSE BLOCK ***** *)
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{*********************************************************}
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{* SysTools: StDbBarC.pas 4.04 *}
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{*********************************************************}
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{* SysTools: data aware bar code components *}
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{*********************************************************}
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{$IFDEF FPC}
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{$mode DELPHI}
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{$ENDIF}
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//{$I StDefine.inc}
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unit StDbBarC;
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interface
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uses
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{$IFDEF FPC}
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LCLIntf, LCLType, LMessages,
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{$ELSE}
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Windows, Messages, DbTables,
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{$ENDIF}
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Classes, //ClipBrd,
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Controls, Graphics, SysUtils,
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Db, DbCtrls,
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StConst, StBarC;
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type
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TStDbBarCode = class(TStBarCode)
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protected {private}
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{.Z+}
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FDataLink : TFieldDataLink;
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procedure DataChange(Sender : TObject);
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function GetDataField : string;
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function GetDataSource : TDataSource;
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procedure SetDataField(const Value : string);
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procedure SetDataSource(Value : TDataSource);
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public
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constructor Create(AOwner : TComponent);
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override;
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destructor Destroy;
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override;
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{.Z+}
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published
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property Code
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stored False;
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property DataField : string
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read GetDataField
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write SetDataField;
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property DataSource : TDataSource
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read GetDataSource
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write SetDataSource;
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end;
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implementation
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{*** TStDbBarCode ***}
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constructor TStDbBarCode.Create(AOwner : TComponent);
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begin
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inherited Create(AOwner);
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FDataLink := TFieldDataLink.Create;
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FDataLink.OnDataChange := DataChange;
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end;
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procedure TStDbBarCode.DataChange(Sender : TObject);
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begin
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if FDataLink.Field = nil then
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Code := '12345678922'
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else
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Code := FDataLink.Field.DisplayText;
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end;
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destructor TStDbBarCode.Destroy;
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begin
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FDataLink.OnDataChange := nil;
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FDataLink.Free;
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FDataLink := nil;
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inherited Destroy;
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end;
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function TStDbBarCode.GetDataField : string;
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begin
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Result := FDataLink.FieldName;
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end;
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function TStDbBarCode.GetDataSource : TDataSource;
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begin
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Result := FDataLink.DataSource
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end;
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procedure TStDbBarCode.SetDataField(const Value : string);
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begin
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FDataLink.FieldName := Value;
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end;
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procedure TStDbBarCode.SetDataSource(Value : TDataSource);
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begin
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FDataLink.DataSource := Value;
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end;
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end.
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