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// Upgraded to Delphi 2009: Sebastian Zierer
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(* ***** 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: StBarC.pas 4.04 *}
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{*********************************************************}
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{* SysTools: bar code components *}
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{*********************************************************}
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{$I StDefine.inc}
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unit StBarC;
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interface
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uses
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Windows,
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Classes, ClipBrd, Controls, Graphics, Messages, SysUtils,
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StBase, StConst;
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const
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{.Z+}
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bcMaxBarCodeLen = 255;
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bcGuardBarAbove = True;
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bcGuardBarBelow = True;
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bcDefNarrowToWideRatio = 2;
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{.Z-}
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type
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TStBarKind = (bkSpace, bkBar, bkThreeQuarterBar, bkHalfBar, bkGuard, bkSupplement, bkBlankSpace);
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{.Z+}
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TStBarKindSet = set of TStBarKind;
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TStDigitArray = array[1..bcMaxBarCodeLen] of Byte;
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{.Z-}
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{.Z+}
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TStBarData = class
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FKind : TStBarKindSet;
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FModules : Integer;
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public
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property Kind : TStBarKindSet
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read FKind
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write FKind;
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property Modules : Integer
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read FModules
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write FModules;
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end;
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{.Z-}
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{.Z+}
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TStBarCodeInfo = class
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private
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FBars : TList;
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function GetBars(Index : Integer) : TStBarData;
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function GetCount : Integer;
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public
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constructor Create;
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virtual;
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destructor Destroy;
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override;
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procedure Add(ModuleCount : Integer; BarKind : TStBarKindSet);
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procedure Clear;
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property Bars[Index : Integer] : TStBarData
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read GetBars;
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default;
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property Count : Integer
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read GetCount;
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end;
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{.Z-}
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TStBarCodeType = (bcUPC_A, bcUPC_E, bcEAN_8, bcEAN_13,
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bcInterleaved2of5, bcCodabar, bcCode11,
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bcCode39, bcCode93, bcCode128);
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TStCode128CodeSubset = (csCodeA, csCodeB, csCodeC);
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TStBarCode = class(TGraphicControl)
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protected {private}
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{property variables}
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{.Z+}
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FAddCheckChar : Boolean;
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FBarCodeType : TStBarCodeType;
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FBarColor : TColor;
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FBarToSpaceRatio : Double;
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FBarNarrowToWideRatio : Integer;
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FBarWidth : Double; {in mils}
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FCode128Subset : TStCode128CodeSubset;
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FBearerBars : Boolean;
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FShowCode : Boolean;
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FShowGuardChars : Boolean;
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FSupplementalCode : string;
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FTallGuardBars : Boolean;
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FExtendedSyntax : Boolean;
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{internal variables}
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bcBarInfo : TStBarCodeInfo;
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bcBarModWidth : Integer; {width of single bar}
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bcCheckK : Integer; {"K" check character for use by Code11}
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bcDigits : TStDigitArray;
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bcDigitCount : Integer;
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bcSpaceModWidth : Integer; {width of empty space between bars}
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bcNormalWidth : Integer;
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bcSpaceWidth : Integer;
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bcSupplementWidth: Integer;
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{property methods}
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function GetCode : string;
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function GetVersion : string;
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procedure SetAddCheckChar(Value : Boolean);
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procedure SetBarCodeType(Value : TStBarCodeType);
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procedure SetBarColor(Value : TColor);
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procedure SetBarToSpaceRatio(Value : Double);
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procedure SetBarNarrowToWideRatio(Value: Integer);
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procedure SetBarWidth(Value : Double);
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procedure SetBearerBars(Value : Boolean);
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procedure SetCode(const Value : string);
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procedure SetCode128Subset(Value : TStCode128CodeSubset);
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procedure SetExtendedSyntax (const v : Boolean);
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procedure SetShowCode(Value : Boolean);
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procedure SetShowGuardChars(Value : Boolean);
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procedure SetSupplementalCode(const Value : string);
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procedure SetTallGuardBars(Value : Boolean);
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procedure SetVersion(const Value : string);
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{internal methods}
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procedure CalcBarCode;
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procedure CalcBarCodeWidth;
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function DrawBar(XPos, YPos, AWidth, AHeight : Integer) : Integer;
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procedure DrawBarCode(const R : TRect);
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function GetDigits(Characters : string) : Integer;
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procedure PaintPrim(const R : TRect);
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function SmallestLineWidth(PixelsPerInch : Integer) : Double;
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{VCL message methods}
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procedure CMTextChanged(var Msg : TMessage);
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message CM_TEXTCHANGED;
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protected
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procedure Loaded;
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override;
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procedure Paint;
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override;
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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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procedure CopyToClipboard;
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procedure GetCheckCharacters(const S : string; var C, K : Integer);
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function GetBarCodeWidth(ACanvas : TCanvas) : Double;
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procedure PaintToCanvas(ACanvas : TCanvas; ARect : TRect);
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procedure PaintToCanvasSize(ACanvas : TCanvas; X, Y, H : Double);
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procedure PaintToDC(DC : hDC; ARect : TRect);
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procedure PaintToDCSize(DC : hDC; X, Y, W, H : Double);
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procedure SaveToFile(const FileName : string);
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function Validate(DisplayError : Boolean) : Boolean;
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published
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{properties}
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property Align;
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property Color;
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property Cursor;
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property Enabled;
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property Font;
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property ParentColor;
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property ParentFont;
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property ParentShowHint;
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property ShowHint;
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property Visible;
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property AddCheckChar : Boolean
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read FAddCheckChar
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write SetAddCheckChar;
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property BarCodeType : TStBarCodeType
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read FBarCodeType
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write SetBarCodeType;
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property BarColor : TColor
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read FBarColor
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write SetBarColor;
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property BarToSpaceRatio : Double
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read FBarToSpaceRatio
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write SetBarToSpaceRatio;
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property BarNarrowToWideRatio : Integer
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read FBarNarrowToWideRatio
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write SetBarNarrowToWideRatio
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default bcDefNarrowToWideRatio;
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property BarWidth : Double
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read FBarWidth
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write SetBarWidth;
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property BearerBars : Boolean
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read FBearerBars
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write SetBearerBars;
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property Code : string
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read GetCode
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write SetCode;
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property Code128Subset : TStCode128CodeSubset
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read FCode128Subset
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write SetCode128Subset;
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property ExtendedSyntax : Boolean
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read FExtendedSyntax write SetExtendedSyntax
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default False;
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property ShowCode : Boolean
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read FShowCode
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write SetShowCode;
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property ShowGuardChars : Boolean
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read FShowGuardChars
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write SetShowGuardChars;
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property SupplementalCode : string
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read FSupplementalCode
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write SetSupplementalCode;
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property TallGuardBars : Boolean
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read FTallGuardBars
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write SetTallGuardBars;
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property Version : string
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read GetVersion
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write SetVersion
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stored False;
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{events}
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property OnClick;
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property OnDblClick;
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property OnMouseDown;
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property OnMouseMove;
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property OnMouseUp;
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end;
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implementation
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const
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{left and right codes for UPC_A}
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UPC_A_LeftHand : array[0..9] of string =
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('0001101', {0}
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'0011001', {1}
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'0010011', {2}
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'0111101', {3}
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'0100011', {4}
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'0110001', {5}
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'0101111', {6}
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'0111011', {7}
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'0110111', {8}
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'0001011' {9} );
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UPC_A_RightHand : array[0..9] of string =
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('1110010', {0}
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'1100110', {1}
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'1101100', {2}
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'1000010', {3}
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'1011100', {4}
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'1001110', {5}
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'1010000', {6}
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'1000100', {7}
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'1001000', {8}
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'1110100' {9} );
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const
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UPC_E_OddParity : array[0..9] of string =
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('0001101', {0}
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'0011001', {1}
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'0010011', {2}
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'0111101', {3}
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'0100011', {4}
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'0110001', {5}
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'0101111', {6}
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'0111011', {7}
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'0110111', {8}
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'0001011' {9} );
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UPC_E_EvenParity : array[0..9] of string =
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('0100111', {0}
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'0110011', {1}
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'0011011', {2}
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'0100001', {3}
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'0011101', {4}
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'0111001', {5}
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'0000101', {6}
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'0010001', {7}
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'0001001', {8}
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'0010111' {9} );
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const
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EAN_LeftHandA : array[0..9] of string =
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('0001101', {0}
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'0011001', {1}
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'0010011', {2}
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'0111101', {3}
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'0100011', {4}
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'0110001', {5}
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'0101111', {6}
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'0111011', {7}
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'0110111', {8}
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'0001011' {9} );
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EAN_LeftHandB : array[0..9] of string =
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('0100111', {0}
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'0110011', {1}
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'0011011', {2}
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'0100001', {3}
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'0011101', {4}
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'0111001', {5}
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'0000101', {6}
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'0010001', {7}
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'0001001', {8}
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'0010111' {9} );
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const
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Interleaved_2of5 : array[0..9] of string =
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('00110', {0}
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'10001', {1}
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'01001', {2}
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'11000', {3}
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'00101', {4}
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'10100', {5}
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'01100', {6}
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'00011', {7}
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'10010', {8}
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'01010' {9} );
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const
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Codabar : array[0..19] of string =
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{BSBSBSB} {bar-space-bar-space-bar...}
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('0000011', {0}
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'0000110', {1}
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'0001001', {2}
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'1100000', {3}
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'0010010', {4}
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'1000010', {5}
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'0100001', {6}
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'0100100', {7}
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'0110000', {8}
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'1001000', {9}
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'0001100', {-}
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'0011000', { $}
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'1000101', {:}
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'1010001', {/}
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'1010100', {.}
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'0010101', {+}
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'0011010', {A}
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'0101001', {B}
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'0001011', {C}
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'0001110' {D});
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const
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Code11 : array[0..11] of string =
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{BSBSB} {bar-space-bar-space-bar...} {0-narrow, 1-wide}
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('00001', {0}
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'10001', {1}
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'01001', {2}
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'11000', {3}
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'00101', {4}
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'10100', {5}
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'01100', {6}
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'00011', {7}
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'10010', {8}
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'10000', {9}
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'00100', {-}
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'00110'); {stop character}
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const
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Code39 : array[0..43] of string =
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{BSBSBSBSB} {bar-space-bar-space-bar...} {0-narrow, 1-wide}
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('000110100', {0}
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'100100001', {1}
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'001100001', {2}
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'101100000', {3}
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'000110001', {4}
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'100110000', {5}
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'001110000', {6}
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'000100101', {7}
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'100100100', {8}
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'001100100', {9}
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'100001001', {A}
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'001001001', {B}
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'101001000', {C}
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'000011001', {D}
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'100011000', {E}
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'001011000', {F}
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'000001101', {G}
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'100001100', {H}
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'001001100', {I}
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'000011100', {J}
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'100000011', {K}
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'001000011', {L}
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'101000010', {M}
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'000010011', {N}
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'100010010', {O}
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'001010010', {P}
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'000000111', {Q}
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'100000110', {R}
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'001000110', {S}
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'000010110', {T}
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'110000001', {U}
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'011000001', {V}
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'111000000', {W}
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'010010001', {X}
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'110010000', {Y}
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'011010000', {Z}
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'010000101', {-}
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'110000100', {.}
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'011000100', {SPACE}
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'010101000', { $}
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'010100010', {/}
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'010001010', {+}
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'000101010', {%}
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'010010100'); {*}
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const
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Code93 : array[0..46] of string =
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{BSBSBS} {bar-space-bar-space-bar...} {0-narrow, 1-wide}
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('131112', {0}
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'111213', {1}
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'111312', {2}
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'111411', {3}
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'121113', {4}
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'121212', {5}
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'121311', {6}
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'111114', {7}
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'131211', {8}
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'141111', {9}
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'211113', {A}
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'211212', {B}
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'211311', {C}
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'221112', {D}
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'221211', {E}
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'231111', {F}
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'112113', {G}
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'112212', {H}
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'112311', {I}
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'122112', {J}
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'132111', {K}
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'111123', {L}
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'111222', {M}
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'111321', {N}
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'121122', {O}
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'131121', {P}
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'212112', {Q}
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'212211', {R}
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'211122', {S}
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'211221', {T}
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'221121', {U}
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'222111', {V}
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'112122', {W}
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'112221', {X}
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'122121', {Y}
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'123111', {Z}
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'121131', {-}
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'311112', {.}
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'311211', {SPACE}
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| 492 |
'321111', { $}
|
| 493 |
'112131', {/}
|
| 494 |
'113121', {+}
|
| 495 |
'211131', {%}
|
| 496 |
'121221', {($)}
|
| 497 |
'312111', {(%)}
|
| 498 |
'311121', {(/)}
|
| 499 |
'122211'); {(+)}
|
| 500 |
|
| 501 |
Code93Map : array[#0..#127] of string =
|
| 502 |
{Circle Code} {ASCII Code 93 }
|
| 503 |
('%U', {NL (%)U }
|
| 504 |
'$A', {SH ($)A }
|
| 505 |
'$B', {SX ($)B }
|
| 506 |
'$C', {EX ($)C }
|
| 507 |
'$D', {ET ($)D }
|
| 508 |
'$E', {EQ ($)E }
|
| 509 |
'$F', {AK ($)F }
|
| 510 |
'$G', {BL ($)G }
|
| 511 |
'$H', {BS ($)H }
|
| 512 |
'$I', {HT ($)I }
|
| 513 |
'$J', {LF ($)J }
|
| 514 |
'$K', {VT ($)K }
|
| 515 |
'$L', {FF ($)L }
|
| 516 |
'$M', {CR ($)M }
|
| 517 |
'$N', {SO ($)N }
|
| 518 |
'$O', {SI ($)O }
|
| 519 |
'$P', {DL ($)P }
|
| 520 |
'$Q', {D1 ($)Q }
|
| 521 |
'$R', {D2 ($)R }
|
| 522 |
'$S', {D3 ($)S }
|
| 523 |
'$T', {D4 ($)T }
|
| 524 |
'$U', {NK ($)U }
|
| 525 |
'$V', {SY ($)V }
|
| 526 |
'$W', {EB ($)W }
|
| 527 |
'$X', {CN ($)X }
|
| 528 |
'$Y', {EM ($)Y }
|
| 529 |
'$Z', {SB ($)Z }
|
| 530 |
'%A', {EC (%)A }
|
| 531 |
'%B', {FS (%)B }
|
| 532 |
'%C', {GS (%)C }
|
| 533 |
'%D', {RS (%)D }
|
| 534 |
'%E', {US (%)E }
|
| 535 |
' ', {Space Space }
|
| 536 |
'/A', {! (/)A }
|
| 537 |
'/B', {" (/)B }
|
| 538 |
'/C', {# (/)C }
|
| 539 |
'$', { $ (/)D or $}
|
| 540 |
'%', {% (/)E or %}
|
| 541 |
'/F', {& (/)F }
|
| 542 |
'/G', {' (/)G }
|
| 543 |
'/H', {( (/)H }
|
| 544 |
'/I', {) (/)I }
|
| 545 |
'/J', {* (/)J }
|
| 546 |
' +', {+ (/)K or +}
|
| 547 |
'/L', {, (/)L }
|
| 548 |
'-', {- (/)M or -}
|
| 549 |
'.', {. (/)N or .}
|
| 550 |
'/', {/ (/)O or /}
|
| 551 |
'0', {0 (/)P or 0}
|
| 552 |
'1', {1 (/)Q or 1}
|
| 553 |
'2', {2 (/)R or 2}
|
| 554 |
'3', {3 (/)S or 3}
|
| 555 |
'4', {4 (/)T or 4}
|
| 556 |
'5', {5 (/)U or 5}
|
| 557 |
'6', {6 (/)V or 6}
|
| 558 |
'7', {7 (/)W or 7}
|
| 559 |
'8', {8 (/)X or 8}
|
| 560 |
'9', {9 (/)Y or 9}
|
| 561 |
'/Z', {: (/)Z }
|
| 562 |
'%F', {; (%)F }
|
| 563 |
'%G', {< (%)G }
|
| 564 |
'%H', {= (%)H }
|
| 565 |
'%I', {> (%)I }
|
| 566 |
'%J', {? (%)J }
|
| 567 |
'%V', { (%)V }
|
| 568 |
'A', {A A }
|
| 569 |
'B', {B B }
|
| 570 |
'C', {C C }
|
| 571 |
'D', {D D }
|
| 572 |
'E', {E E }
|
| 573 |
'F', {F F }
|
| 574 |
'G', {G G }
|
| 575 |
'H', {H H }
|
| 576 |
'I', {I I }
|
| 577 |
'J', {J J }
|
| 578 |
'K', {K K }
|
| 579 |
'L', {L L }
|
| 580 |
'M', {M M }
|
| 581 |
'N', {N N }
|
| 582 |
'O', {O O }
|
| 583 |
'P', {P P }
|
| 584 |
'Q', {Q Q }
|
| 585 |
'R', {R R }
|
| 586 |
'S', {S S }
|
| 587 |
'T', {T T }
|
| 588 |
'U', {U U }
|
| 589 |
'V', {V V }
|
| 590 |
'W', {W W }
|
| 591 |
'X', {X X }
|
| 592 |
'Y', {Y Y }
|
| 593 |
'Z', {Z Z }
|
| 594 |
'%K', {[ (%)K }
|
| 595 |
'%L', {\ (%)L }
|
| 596 |
'%M', {] (%)M }
|
| 597 |
'%N', {^ (%)N }
|
| 598 |
'%O', {_ (%)O }
|
| 599 |
'%W', {` (%)W }
|
| 600 |
'+A', {a (+)A }
|
| 601 |
'+B', {b (+)B }
|
| 602 |
'+C', {c (+)C }
|
| 603 |
'+D', {d (+)D }
|
| 604 |
'+E', {e (+)E }
|
| 605 |
'+F', {f (+)F }
|
| 606 |
'+G', {g (+)G }
|
| 607 |
'+H', {h (+)H }
|
| 608 |
'+I', {i (+)I }
|
| 609 |
'+J', {j (+)J }
|
| 610 |
'+K', {k (+)K }
|
| 611 |
'+L', {l (+)L }
|
| 612 |
'+M', {m (+)M }
|
| 613 |
'+N', {n (+)N }
|
| 614 |
'+O', {o (+)O }
|
| 615 |
'+P', {p (+)P }
|
| 616 |
'+Q', {q (+)Q }
|
| 617 |
'+R', {r (+)R }
|
| 618 |
'+S', {s (+)S }
|
| 619 |
'+T', {t (+)T }
|
| 620 |
'+U', {u (+)U }
|
| 621 |
'+V', {v (+)V }
|
| 622 |
'+W', {w (+)W }
|
| 623 |
'+X', {x (+)X }
|
| 624 |
'+Y', {y (+)Y }
|
| 625 |
'+Z', {z (+)Z }
|
| 626 |
'%P', {{ (%)P }
|
| 627 |
'%Q', {| (%)Q }
|
| 628 |
'%R', {}{ (%)R }
|
| 629 |
'%S', {~ (%)S }
|
| 630 |
'%T'); { DEL (%)T }
|
| 631 |
|
| 632 |
const
|
| 633 |
Code128 : array[0..106] of string =
|
| 634 |
{BSBSBS} {Value CodeA CodeB CodeC}
|
| 635 |
('212222', {0 SPACE SPACE 00}
|
| 636 |
'222122', {1 ! ! 01}
|
| 637 |
'222221', {2 " " 02}
|
| 638 |
'121223', {3 # # 03}
|
| 639 |
'121322', {4 $ $ 04}
|
| 640 |
'131222', {5 % % 05}
|
| 641 |
'122213', {6 & & 06}
|
| 642 |
'122312', {7 ' ' 07}
|
| 643 |
'132212', {8 ( ( 08}
|
| 644 |
'221213', {9 ) ) 09}
|
| 645 |
'221312', {10 * * 10}
|
| 646 |
'231212', {11 + + 11}
|
| 647 |
'112232', {12 , , 12}
|
| 648 |
'122132', {13 - - 13}
|
| 649 |
'122231', {14 . . 14}
|
| 650 |
'113222', {15 / / 15}
|
| 651 |
'123122', {16 0 0 16}
|
| 652 |
'123221', {17 1 1 17}
|
| 653 |
'223211', {18 2 2 18}
|
| 654 |
'221132', {19 3 3 19}
|
| 655 |
'221231', {20 4 4 20}
|
| 656 |
'213212', {21 5 5 21}
|
| 657 |
'223112', {22 6 6 22}
|
| 658 |
'312131', {23 7 7 23}
|
| 659 |
'311222', {24 8 8 24}
|
| 660 |
'321122', {25 9 9 25}
|
| 661 |
'321221', {26 : : 26}
|
| 662 |
'312212', {27 ; ; 27}
|
| 663 |
'322112', {28 < < 28}
|
| 664 |
'322211', {29 = = 29}
|
| 665 |
'212123', {30 > > 30}
|
| 666 |
'212321', {31 ? ? 31}
|
| 667 |
'232121', {32 @ @ 32}
|
| 668 |
'111323', {33 A A 33}
|
| 669 |
'131123', {34 B B 34}
|
| 670 |
'131321', {35 C C 35}
|
| 671 |
'112313', {36 D D 36}
|
| 672 |
'132113', {37 E E 37}
|
| 673 |
'132311', {38 F F 38}
|
| 674 |
'211313', {39 G G 39}
|
| 675 |
'231113', {40 H H 40}
|
| 676 |
'231311', {41 I I 41}
|
| 677 |
'112133', {42 J J 42}
|
| 678 |
'112331', {43 K K 43}
|
| 679 |
'132131', {44 L L 44}
|
| 680 |
'113123', {45 M M 45}
|
| 681 |
'113321', {46 N N 46}
|
| 682 |
'133121', {47 O O 47}
|
| 683 |
'313121', {48 P P 48}
|
| 684 |
'211331', {49 Q Q 49}
|
| 685 |
'231131', {50 R R 50}
|
| 686 |
'213113', {51 S S 51}
|
| 687 |
'213311', {52 T T 52}
|
| 688 |
'213131', {53 U U 53}
|
| 689 |
'311123', {54 V V 54}
|
| 690 |
'311321', {55 W W 55}
|
| 691 |
'331121', {56 X X 56}
|
| 692 |
'312113', {57 Y Y 57}
|
| 693 |
'312311', {58 Z Z 58}
|
| 694 |
'332111', {59 [ [ 59}
|
| 695 |
'314111', {60 \ \ 60}
|
| 696 |
'221411', {61 ] ] 61}
|
| 697 |
'431111', {62 ^ ^ 62}
|
| 698 |
'111224', {63 _ _ 63}
|
| 699 |
'111422', {64 NU ` 64}
|
| 700 |
'121124', {65 SH a 65}
|
| 701 |
'121421', {66 SX b 66}
|
| 702 |
'141122', {67 EX c 67}
|
| 703 |
'141221', {68 ET d 68}
|
| 704 |
'112214', {69 EQ e 69}
|
| 705 |
'112412', {70 AK f 70}
|
| 706 |
'122114', {71 BL g 71}
|
| 707 |
'122411', {72 BS h 72}
|
| 708 |
'142112', {73 HT i 73}
|
| 709 |
'142211', {74 LF j 74}
|
| 710 |
'241211', {75 VT k 75}
|
| 711 |
'221114', {76 FF l 76}
|
| 712 |
'413111', {77 CR m 77}
|
| 713 |
'241112', {78 SO n 78}
|
| 714 |
'134111', {79 SI o 79}
|
| 715 |
'111242', {80 DL p 80}
|
| 716 |
'121142', {81 D1 q 81}
|
| 717 |
'121241', {82 D2 r 82}
|
| 718 |
'114212', {83 D3 s 83}
|
| 719 |
'124112', {84 D4 t 84}
|
| 720 |
'124211', {85 NK u 85}
|
| 721 |
'411212', {86 SY v 86}
|
| 722 |
'421112', {87 EB w 87}
|
| 723 |
'421211', {88 CN x 88}
|
| 724 |
'212141', {89 EM y 89}
|
| 725 |
'214121', {90 SB z 90}
|
| 726 |
'412121', (*91 EC { 91*)
|
| 727 |
'111143', {92 FS 92}
|
| 728 |
'111341', (*93 GS } 93*)
|
| 729 |
'131141', {94 RS ~ 94}
|
| 730 |
'114113', {95 US DEL 95}
|
| 731 |
'114311', {96 FNC 3 FNC 3 96} {use #132}
|
| 732 |
'411113', {97 FNC 2 FNC 2 97} {use #131}
|
| 733 |
'411311', {98 SHIFT SHIFT 98} {use #130}
|
| 734 |
'113141', {99 CODE C CODE C 99} {use #135}
|
| 735 |
'114131', {100 CODE B FNC 4 CODE B} {use #134}
|
| 736 |
'311141', {101 FNC 4 CODE A CODE A} {use #133}
|
| 737 |
'411131', {102 FNC 1 FNC 1 FNC 1 } {use #130}
|
| 738 |
'211412', {103 CODE A} {use #136}
|
| 739 |
'211214', {104 CODE B} {use #137}
|
| 740 |
'211232', {105 CODE C} {use #138}
|
| 741 |
'2331112');{106 STOP} {use #139}
|
| 742 |
|
| 743 |
|
| 744 |
{*** helper routines ***}
|
| 745 |
|
| 746 |
function RectWidth(const R : TRect) : Integer;
|
| 747 |
begin
|
| 748 |
Result := R.Right-R.Left;
|
| 749 |
end;
|
| 750 |
|
| 751 |
function RectHeight(const R : TRect) : Integer;
|
| 752 |
begin
|
| 753 |
Result := R.Bottom-R.Top;
|
| 754 |
end;
|
| 755 |
|
| 756 |
|
| 757 |
{*** TStBarCodeInfo ***}
|
| 758 |
|
| 759 |
procedure TStBarCodeInfo.Add(ModuleCount : Integer; BarKind : TStBarKindSet);
|
| 760 |
var
|
| 761 |
Bar : TStBarData;
|
| 762 |
begin
|
| 763 |
Bar := TStBarData.Create;
|
| 764 |
Bar.Modules := ModuleCount;
|
| 765 |
Bar.Kind := BarKind;
|
| 766 |
FBars.Add(Bar);
|
| 767 |
end;
|
| 768 |
|
| 769 |
procedure TStBarCodeInfo.Clear;
|
| 770 |
var
|
| 771 |
I : Integer;
|
| 772 |
begin
|
| 773 |
for I := 0 to FBars.Count-1 do
|
| 774 |
TStBarData(FBars[I]).Free;
|
| 775 |
FBars.Clear;
|
| 776 |
end;
|
| 777 |
|
| 778 |
constructor TStBarCodeInfo.Create;
|
| 779 |
begin
|
| 780 |
inherited Create;
|
| 781 |
|
| 782 |
FBars := TList.Create;
|
| 783 |
end;
|
| 784 |
|
| 785 |
destructor TStBarCodeInfo.Destroy;
|
| 786 |
begin
|
| 787 |
Clear;
|
| 788 |
FBars.Free;
|
| 789 |
FBars := nil;
|
| 790 |
|
| 791 |
inherited Destroy;
|
| 792 |
end;
|
| 793 |
|
| 794 |
function TStBarCodeInfo.GetBars(Index : Integer) : TStBarData;
|
| 795 |
begin
|
| 796 |
Result := FBars[Index];
|
| 797 |
end;
|
| 798 |
|
| 799 |
function TStBarCodeInfo.GetCount : Integer;
|
| 800 |
begin
|
| 801 |
Result := FBars.Count;
|
| 802 |
end;
|
| 803 |
|
| 804 |
|
| 805 |
{*** TStBarCode ***}
|
| 806 |
|
| 807 |
procedure TStBarCode.CalcBarCode;
|
| 808 |
var
|
| 809 |
I, J, X : Integer;
|
| 810 |
CheckC : Integer;
|
| 811 |
CheckK : Integer;
|
| 812 |
CSP : string;
|
| 813 |
C : string;
|
| 814 |
C1, C2 : string;
|
| 815 |
|
| 816 |
procedure AddCode(const S : string; AKind : TStBarKindSet);
|
| 817 |
var
|
| 818 |
I : Integer;
|
| 819 |
begin
|
| 820 |
for I := 1 to Length(S) do
|
| 821 |
if S[I] = '0' then
|
| 822 |
bcBarInfo.Add(1, AKind - [bkBar, bkThreeQuarterBar, bkHalfBar] + [bkSpace])
|
| 823 |
else
|
| 824 |
bcBarInfo.Add(StrToInt(S[I]), AKind);
|
| 825 |
end;
|
| 826 |
|
| 827 |
procedure AddECode(const Parity : string);
|
| 828 |
var
|
| 829 |
I : Integer;
|
| 830 |
begin
|
| 831 |
for I := 1 to Length(Parity) do begin
|
| 832 |
if Parity[I] = 'E' then
|
| 833 |
AddCode(UPC_E_EvenParity[bcDigits[I]], [bkBar])
|
| 834 |
else
|
| 835 |
AddCode(UPC_E_OddParity[bcDigits[I]], [bkBar]);
|
| 836 |
end;
|
| 837 |
end;
|
| 838 |
|
| 839 |
procedure AddSupCode(const Parity : string);
|
| 840 |
var
|
| 841 |
I : Integer;
|
| 842 |
begin
|
| 843 |
for I := 1 to Length(Parity) do begin
|
| 844 |
if Parity[I] = 'E' then
|
| 845 |
AddCode(UPC_E_EvenParity[bcDigits[I]], [bkThreeQuarterBar, bkSupplement])
|
| 846 |
else
|
| 847 |
AddCode(UPC_E_OddParity[bcDigits[I]], [bkThreeQuarterBar, bkSupplement]);
|
| 848 |
if I < Length(Parity) then
|
| 849 |
AddCode('01', [bkThreeQuarterBar, bkSupplement]);
|
| 850 |
end;
|
| 851 |
end;
|
| 852 |
|
| 853 |
procedure AddCodeModules(const S : string);
|
| 854 |
var
|
| 855 |
K : Integer;
|
| 856 |
begin
|
| 857 |
for K := 1 to Length(S) do begin
|
| 858 |
if Odd(K) then
|
| 859 |
bcBarInfo.Add(StrToInt(S[K]), [bkBar])
|
| 860 |
else
|
| 861 |
bcBarInfo.Add(StrToInt(S[K]), [bkSpace]);
|
| 862 |
end;
|
| 863 |
end;
|
| 864 |
|
| 865 |
procedure AddCodeWideNarrow(const S : string);
|
| 866 |
var
|
| 867 |
K : Integer;
|
| 868 |
begin
|
| 869 |
for K := 1 to Length(S) do begin
|
| 870 |
case S[K] of
|
| 871 |
'0' : if Odd(K) then
|
| 872 |
bcBarInfo.Add(1, [bkBar])
|
| 873 |
else
|
| 874 |
bcBarInfo.Add(1, [bkSpace]);
|
| 875 |
'1' : if Odd(K) then
|
| 876 |
bcBarInfo.Add(FBarNarrowToWideRatio, [bkBar])
|
| 877 |
else
|
| 878 |
bcBarInfo.Add(FBarNarrowToWideRatio, [bkSpace]);
|
| 879 |
end;
|
| 880 |
end;
|
| 881 |
end;
|
| 882 |
|
| 883 |
begin
|
| 884 |
if csLoading in ComponentState then
|
| 885 |
Exit;
|
| 886 |
|
| 887 |
bcBarInfo.Clear;
|
| 888 |
if Code = '' then
|
| 889 |
Exit;
|
| 890 |
|
| 891 |
{get copy of code}
|
| 892 |
C := Code;
|
| 893 |
|
| 894 |
{get digits}
|
| 895 |
case FBarCodeType of
|
| 896 |
bcUPC_A, bcUPC_E, bcEAN_8, bcEAN_13, bcCodabar, bcCode11, bcCode93 :
|
| 897 |
begin
|
| 898 |
bcDigitCount := GetDigits(C);
|
| 899 |
end;
|
| 900 |
bcInterleaved2of5 :
|
| 901 |
begin
|
| 902 |
{adjust odd length code}
|
| 903 |
if FAddCheckChar then begin
|
| 904 |
if not Odd(Length(C)) then
|
| 905 |
C := '0' + C;
|
| 906 |
end else begin
|
| 907 |
if Odd(Length(C)) then
|
| 908 |
C := '0' + C;
|
| 909 |
end;
|
| 910 |
bcDigitCount := GetDigits(C);
|
| 911 |
end;
|
| 912 |
bcCode39 :
|
| 913 |
begin
|
| 914 |
{add guard characters}
|
| 915 |
if C[1] <> '*' then
|
| 916 |
C := '*' + C;
|
| 917 |
if C[Length(C)] <> '*' then
|
| 918 |
C := C + '*';
|
| 919 |
bcDigitCount := GetDigits(C);
|
| 920 |
end;
|
| 921 |
bcCode128 :
|
| 922 |
begin
|
| 923 |
{add start code}
|
| 924 |
if not (C[1] in [#136, #137, #138]) then
|
| 925 |
case FCode128Subset of
|
| 926 |
csCodeA : C := #136 + C;
|
| 927 |
csCodeB : C := #137 + C;
|
| 928 |
csCodeC : C := #138 + C;
|
| 929 |
end;
|
| 930 |
bcDigitCount := GetDigits(C);
|
| 931 |
end;
|
| 932 |
end;
|
| 933 |
|
| 934 |
case FBarCodeType of
|
| 935 |
bcUPC_A :
|
| 936 |
begin
|
| 937 |
{get check digit}
|
| 938 |
if Length(C) = 11 then
|
| 939 |
GetCheckCharacters(C, CheckC, CheckK)
|
| 940 |
else
|
| 941 |
CheckC := bcDigits[12];
|
| 942 |
|
| 943 |
{encode left hand guard bars}
|
| 944 |
AddCode('101', [bkGuard, bkBar]);
|
| 945 |
|
| 946 |
{first six characters as left hand characters}
|
| 947 |
for I := 1 to 6 do
|
| 948 |
AddCode(UPC_A_LeftHand[bcDigits[I]], [bkBar]);
|
| 949 |
|
| 950 |
{center guard pattern}
|
| 951 |
AddCode('01010', [bkGuard, bkBar]);
|
| 952 |
|
| 953 |
{last five data characters as right hand characters}
|
| 954 |
for I := 7 to 11 do
|
| 955 |
AddCode(UPC_A_RightHand[bcDigits[I]], [bkBar]);
|
| 956 |
|
| 957 |
{check character}
|
| 958 |
AddCode(UPC_A_RightHand[CheckC], [bkBar]);
|
| 959 |
|
| 960 |
{encode right hand guard bars}
|
| 961 |
AddCode('101', [bkGuard, bkBar]);
|
| 962 |
end;
|
| 963 |
bcUPC_E :
|
| 964 |
begin
|
| 965 |
{encode left hand guard bars, 101}
|
| 966 |
AddCode('101', [bkGuard, bkBar]);
|
| 967 |
GetCheckCharacters(C, CheckC, CheckK);
|
| 968 |
case CheckC of
|
| 969 |
0 : AddECode('EEEOOO');
|
| 970 |
1 : AddECode('EEOEOO');
|
| 971 |
2 : AddECode('EEOOEO');
|
| 972 |
3 : AddECode('EEOOOE');
|
| 973 |
4 : AddECode('EOEEOO');
|
| 974 |
5 : AddECode('EOOEEO');
|
| 975 |
6 : AddECode('EOOOEE');
|
| 976 |
7 : AddECode('EOEOEO');
|
| 977 |
8 : AddECode('EOEOOE');
|
| 978 |
9 : AddECode('EOOEOE');
|
| 979 |
end;
|
| 980 |
{encode right hand guard bars}
|
| 981 |
AddCode('010101', [bkGuard, bkBar]);
|
| 982 |
end;
|
| 983 |
bcEAN_8 :
|
| 984 |
begin
|
| 985 |
{get check digit}
|
| 986 |
if Length(C) = 7 then
|
| 987 |
GetCheckCharacters(C, CheckC, CheckK)
|
| 988 |
else
|
| 989 |
CheckC := bcDigits[8];
|
| 990 |
|
| 991 |
{encode left hand guard bars}
|
| 992 |
AddCode('101', [bkGuard, bkBar]);
|
| 993 |
{two flag two data characters, encoded as left hand A characters}
|
| 994 |
for I := 1 to 4 do
|
| 995 |
AddCode(EAN_LeftHandA[bcDigits[I]], [bkBar]);
|
| 996 |
{encode center guard bars}
|
| 997 |
AddCode('01010', [bkGuard, bkBar]);
|
| 998 |
{last three data characters, encoded as right hand characters}
|
| 999 |
for I := 5 to 7 do
|
| 1000 |
AddCode(UPC_A_RightHand[bcDigits[I]], [bkBar]);
|
| 1001 |
{check character}
|
| 1002 |
AddCode(UPC_A_RightHand[CheckC], [bkBar]);
|
| 1003 |
{encode right hand guard bars}
|
| 1004 |
AddCode('101', [bkGuard, bkBar]);
|
| 1005 |
end;
|
| 1006 |
bcEAN_13 :
|
| 1007 |
begin
|
| 1008 |
{get check digit}
|
| 1009 |
if Length(C) = 12 then
|
| 1010 |
GetCheckCharacters(C, CheckC, CheckK)
|
| 1011 |
else
|
| 1012 |
CheckC := bcDigits[13];
|
| 1013 |
|
| 1014 |
{determine which left hand table to use based on first flag character}
|
| 1015 |
{EAN refers to this as the 13th digit - counting from the right}
|
| 1016 |
case bcDigits[1] of
|
| 1017 |
{ 12345}
|
| 1018 |
0 : CSP := 'AAAAAA';
|
| 1019 |
1 : CSP := 'AABABB';
|
| 1020 |
2 : CSP := 'AABBAB';
|
| 1021 |
3 : CSP := 'AABBBA';
|
| 1022 |
4 : CSP := 'ABAABB';
|
| 1023 |
5 : CSP := 'ABBAAB';
|
| 1024 |
6 : CSP := 'ABBBAA';
|
| 1025 |
7 : CSP := 'ABABAB';
|
| 1026 |
8 : CSP := 'ABABBA';
|
| 1027 |
9 : CSP := 'ABBABA';
|
| 1028 |
end;
|
| 1029 |
{encode left hand guard bars}
|
| 1030 |
AddCode('101', [bkGuard, bkBar]);
|
| 1031 |
{start with second flag character and next five data characters}
|
| 1032 |
for I := 2 to 7 do
|
| 1033 |
if CSP[I-1] = 'A' then
|
| 1034 |
AddCode(EAN_LeftHandA[bcDigits[I]], [bkBar])
|
| 1035 |
else
|
| 1036 |
AddCode(EAN_LeftHandB[bcDigits[I]], [bkBar]);
|
| 1037 |
{encode center guard bars}
|
| 1038 |
AddCode('01010', [bkGuard, bkBar]);
|
| 1039 |
{encode last five data characters}
|
| 1040 |
for I := 8 to 12 do
|
| 1041 |
AddCode(UPC_A_RightHand[bcDigits[I]], [bkBar]);
|
| 1042 |
{check character}
|
| 1043 |
AddCode(UPC_A_RightHand[CheckC], [bkBar]);
|
| 1044 |
{encode right hand guard bars}
|
| 1045 |
AddCode('101', [bkGuard, bkBar]);
|
| 1046 |
end;
|
| 1047 |
bcInterleaved2of5 :
|
| 1048 |
begin
|
| 1049 |
{add check character}
|
| 1050 |
if FAddCheckChar then begin
|
| 1051 |
{get check digit}
|
| 1052 |
GetCheckCharacters(C, CheckC, CheckK);
|
| 1053 |
Inc(bcDigitCount);
|
| 1054 |
bcDigits[bcDigitCount] := CheckC;
|
| 1055 |
end;
|
| 1056 |
|
| 1057 |
{encode left guard pattern}
|
| 1058 |
bcBarInfo.Add(1, [bkGuard, bkBar]);
|
| 1059 |
bcBarInfo.Add(1, [bkGuard, bkSpace]);
|
| 1060 |
bcBarInfo.Add(1, [bkGuard, bkBar]);
|
| 1061 |
bcBarInfo.Add(1, [bkGuard, bkSpace]);
|
| 1062 |
|
| 1063 |
I := 1;
|
| 1064 |
while I < bcDigitCount do begin
|
| 1065 |
{take two characters at a time - odd as bars, even as spaces}
|
| 1066 |
C1 := Interleaved_2of5[bcDigits[I]];
|
| 1067 |
C2 := Interleaved_2of5[bcDigits[I+1]];
|
| 1068 |
{interleave data}
|
| 1069 |
for J := 1 to 5 do begin
|
| 1070 |
if C1[J] = '1' then
|
| 1071 |
bcBarInfo.Add(FBarNarrowToWideRatio, [bkBar]) {wide bar}
|
| 1072 |
else
|
| 1073 |
bcBarInfo.Add(1, [bkBar]); {narrow bar}
|
| 1074 |
if C2[J] = '1' then
|
| 1075 |
bcBarInfo.Add(FBarNarrowToWideRatio, [bkSpace]){wide space}
|
| 1076 |
else
|
| 1077 |
bcBarInfo.Add(1, [bkSpace]); {narrow space}
|
| 1078 |
end;
|
| 1079 |
Inc(I, 2);
|
| 1080 |
end;
|
| 1081 |
|
| 1082 |
{encode right guard pattern}
|
| 1083 |
bcBarInfo.Add(FBarNarrowToWideRatio,
|
| 1084 |
[bkGuard, bkBar]); {double-width bar}
|
| 1085 |
bcBarInfo.Add(1, [bkGuard, bkSpace]);
|
| 1086 |
bcBarInfo.Add(1, [bkGuard, bkBar]);
|
| 1087 |
end;
|
| 1088 |
bcCodabar :
|
| 1089 |
begin
|
| 1090 |
for I := 1 to bcDigitCount do begin
|
| 1091 |
AddCodeWideNarrow(Codabar[bcDigits[I]]);
|
| 1092 |
if I < bcDigitCount then
|
| 1093 |
bcBarInfo.Add(1, [bkSpace]);
|
| 1094 |
end;
|
| 1095 |
end;
|
| 1096 |
bcCode11 :
|
| 1097 |
begin
|
| 1098 |
AddCodeWideNarrow(Code11[11]); {start}
|
| 1099 |
bcBarInfo.Add(1, [bkSpace]);
|
| 1100 |
{add check characters}
|
| 1101 |
if FAddCheckChar then begin
|
| 1102 |
{get check digits}
|
| 1103 |
GetCheckCharacters(C, CheckC, CheckK);
|
| 1104 |
Inc(bcDigitCount);
|
| 1105 |
bcDigits[bcDigitCount] := CheckC;
|
| 1106 |
Inc(bcDigitCount);
|
| 1107 |
bcDigits[bcDigitCount] := CheckK;
|
| 1108 |
end;
|
| 1109 |
|
| 1110 |
for I := 1 to bcDigitCount do begin
|
| 1111 |
AddCodeWideNarrow(Code11[bcDigits[I]]);
|
| 1112 |
bcBarInfo.Add(1, [bkSpace]);
|
| 1113 |
end;
|
| 1114 |
AddCodeWideNarrow(Code11[11]); {stop}
|
| 1115 |
end;
|
| 1116 |
bcCode39 :
|
| 1117 |
begin
|
| 1118 |
for I := 1 to bcDigitCount do begin
|
| 1119 |
C1 := Code39[bcDigits[I]];
|
| 1120 |
for J := 1 to Length(C1) do begin
|
| 1121 |
case C1[J] of
|
| 1122 |
'0' : if Odd(J) then
|
| 1123 |
bcBarInfo.Add(1, [bkBar])
|
| 1124 |
else
|
| 1125 |
bcBarInfo.Add(1, [bkSpace]);
|
| 1126 |
'1' : if Odd(J) then
|
| 1127 |
bcBarInfo.Add(2, [bkBar])
|
| 1128 |
else
|
| 1129 |
bcBarInfo.Add(2, [bkSpace]);
|
| 1130 |
end;
|
| 1131 |
end;
|
| 1132 |
bcBarInfo.Add(1, [bkSpace]);
|
| 1133 |
end;
|
| 1134 |
end;
|
| 1135 |
bcCode93 :
|
| 1136 |
begin;
|
| 1137 |
{start character}
|
| 1138 |
AddCodeModules('111141');
|
| 1139 |
{add check characters}
|
| 1140 |
if FAddCheckChar then begin
|
| 1141 |
{get check digits}
|
| 1142 |
GetCheckCharacters(C, CheckC, CheckK);
|
| 1143 |
Inc(bcDigitCount);
|
| 1144 |
bcDigits[bcDigitCount] := CheckC;
|
| 1145 |
Inc(bcDigitCount);
|
| 1146 |
bcDigits[bcDigitCount] := CheckK;
|
| 1147 |
end;
|
| 1148 |
for I := 1 to bcDigitCount do
|
| 1149 |
AddCodeModules(Code93[bcDigits[I]]);
|
| 1150 |
{stop character}
|
| 1151 |
AddCodeModules('1111411');
|
| 1152 |
end;
|
| 1153 |
bcCode128 :
|
| 1154 |
begin
|
| 1155 |
{add check character}
|
| 1156 |
if FAddCheckChar then begin
|
| 1157 |
GetCheckCharacters(C, CheckC, CheckK);
|
| 1158 |
Inc(bcDigitCount);
|
| 1159 |
bcDigits[bcDigitCount] := CheckC;
|
| 1160 |
end;
|
| 1161 |
{add stop code}
|
| 1162 |
Inc(bcDigitCount);
|
| 1163 |
bcDigits[bcDigitCount] := 106;
|
| 1164 |
for I := 1 to bcDigitCount do
|
| 1165 |
AddCodeModules(Code128[bcDigits[I]]);
|
| 1166 |
end;
|
| 1167 |
end;
|
| 1168 |
|
| 1169 |
if FBarCodeType in [bcUPC_A, bcUPC_E, bcEAN_8, bcEAN_13] then begin
|
| 1170 |
{add supplemental encodings if requested}
|
| 1171 |
if Length(FSupplementalCode) in [2, 5] then begin
|
| 1172 |
{get digits}
|
| 1173 |
bcDigitCount := GetDigits(FSupplementalCode);
|
| 1174 |
{7 spaces after primary code - 0000000}
|
| 1175 |
AddCode('0000000', [bkThreeQuarterBar, bkBlankSpace]);
|
| 1176 |
{encode left hand guard bars, 1011}
|
| 1177 |
AddCode('1011', [bkThreeQuarterBar, bkSupplement]);
|
| 1178 |
|
| 1179 |
if bcDigitCount = 2 then begin
|
| 1180 |
{two digit supplement}
|
| 1181 |
{determine parity table to use for each of the two characters}
|
| 1182 |
X := bcDigits[1] * 10 + bcDigits[2];
|
| 1183 |
case X mod 4 of
|
| 1184 |
0 : AddSupCode('OO');
|
| 1185 |
1 : AddSupCode('OE');
|
| 1186 |
2 : AddSupCode('EO');
|
| 1187 |
3 : AddSupCode('EE');
|
| 1188 |
end;
|
| 1189 |
end else begin
|
| 1190 |
{five digit supplement}
|
| 1191 |
{determine the parity pattern to use for each of the five}
|
| 1192 |
X := ((bcDigits[1] + bcDigits[3] + bcDigits[5])*3 + (bcDigits[2] + bcDigits[4])*9) mod 10;
|
| 1193 |
case X of
|
| 1194 |
0 : AddSupCode('EEOOO');
|
| 1195 |
1 : AddSupCode('EOEOO');
|
| 1196 |
2 : AddSupCode('EOOEO');
|
| 1197 |
3 : AddSupCode('EOOOE');
|
| 1198 |
4 : AddSupCode('OEEOO');
|
| 1199 |
5 : AddSupCode('OOEEO');
|
| 1200 |
6 : AddSupCode('OOOEE');
|
| 1201 |
7 : AddSupCode('OEOEO');
|
| 1202 |
8 : AddSupCode('OEOOE');
|
| 1203 |
9 : AddSupCode('OOEOE');
|
| 1204 |
end;
|
| 1205 |
end;
|
| 1206 |
end;
|
| 1207 |
end;
|
| 1208 |
end;
|
| 1209 |
|
| 1210 |
procedure TStBarCode.CalcBarCodeWidth;
|
| 1211 |
var
|
| 1212 |
I : Integer;
|
| 1213 |
begin
|
| 1214 |
bcNormalWidth := 0;
|
| 1215 |
bcSpaceWidth := 0;
|
| 1216 |
bcSupplementWidth := 0;
|
| 1217 |
for I := 0 to bcBarInfo.Count-1 do begin
|
| 1218 |
if bkSpace in bcBarInfo[I].Kind then begin
|
| 1219 |
if bkBlankSpace in bcBarInfo[I].Kind then
|
| 1220 |
Inc(bcSpaceWidth, bcSpaceModWidth*bcBarInfo[I].Modules)
|
| 1221 |
else if bkSupplement in bcBarInfo[I].Kind then
|
| 1222 |
Inc(bcSupplementWidth, bcSpaceModWidth*bcBarInfo[I].Modules)
|
| 1223 |
else
|
| 1224 |
Inc(bcNormalWidth, bcSpaceModWidth*bcBarInfo[I].Modules)
|
| 1225 |
end else begin
|
| 1226 |
if bkBlankSpace in bcBarInfo[I].Kind then
|
| 1227 |
Inc(bcSpaceWidth, bcBarModWidth*bcBarInfo[I].Modules)
|
| 1228 |
else if bkSupplement in bcBarInfo[I].Kind then
|
| 1229 |
Inc(bcSupplementWidth, bcBarModWidth*bcBarInfo[I].Modules)
|
| 1230 |
else
|
| 1231 |
Inc(bcNormalWidth, bcBarModWidth*bcBarInfo[I].Modules)
|
| 1232 |
end;
|
| 1233 |
end;
|
| 1234 |
end;
|
| 1235 |
|
| 1236 |
procedure TStBarCode.CMTextChanged(var Msg : TMessage);
|
| 1237 |
begin
|
| 1238 |
CalcBarCode;
|
| 1239 |
Invalidate;
|
| 1240 |
end;
|
| 1241 |
|
| 1242 |
procedure TStBarCode.CopyToClipboard;
|
| 1243 |
var
|
| 1244 |
MetaFile : TMetaFile;
|
| 1245 |
MetaFileCanvas : TMetaFileCanvas;
|
| 1246 |
Bitmap : TBitmap;
|
| 1247 |
begin
|
| 1248 |
Clipboard.Clear;
|
| 1249 |
Clipboard.Open;
|
| 1250 |
try
|
| 1251 |
{bitmap}
|
| 1252 |
Bitmap := TBitmap.Create;
|
| 1253 |
try
|
| 1254 |
Bitmap.Width := ClientWidth;
|
| 1255 |
Bitmap.Height := ClientHeight;
|
| 1256 |
PaintToDC(Bitmap.Canvas.Handle, ClientRect);
|
| 1257 |
Clipboard.Assign(Bitmap);
|
| 1258 |
|
| 1259 |
{metafile}
|
| 1260 |
MetaFile := TMetaFile.Create;
|
| 1261 |
try
|
| 1262 |
MetaFileCanvas := TMetaFileCanvas.Create(MetaFile, 0);
|
| 1263 |
try
|
| 1264 |
MetaFile.Enhanced := True;
|
| 1265 |
MetaFile.Width := ClientWidth;
|
| 1266 |
MetaFile.Height := ClientHeight;
|
| 1267 |
MetaFileCanvas.Draw(0, 0, Bitmap);
|
| 1268 |
finally
|
| 1269 |
MetaFileCanvas.Free;
|
| 1270 |
end;
|
| 1271 |
Clipboard.Assign(MetaFile);
|
| 1272 |
finally
|
| 1273 |
MetaFile.Free;
|
| 1274 |
end;
|
| 1275 |
|
| 1276 |
finally
|
| 1277 |
Bitmap.Free;
|
| 1278 |
end
|
| 1279 |
finally
|
| 1280 |
Clipboard.Close;
|
| 1281 |
end;
|
| 1282 |
end;
|
| 1283 |
|
| 1284 |
constructor TStBarCode.Create(AOwner : TComponent);
|
| 1285 |
begin
|
| 1286 |
inherited Create(AOwner);
|
| 1287 |
|
| 1288 |
bcBarInfo := TStBarCodeInfo.Create;
|
| 1289 |
|
| 1290 |
{defaults}
|
| 1291 |
Color := clWhite;
|
| 1292 |
Width := 200;
|
| 1293 |
Height := 75;
|
| 1294 |
Text := '123456789012';
|
| 1295 |
|
| 1296 |
FAddCheckChar := True;
|
| 1297 |
FBarColor := clBlack;
|
| 1298 |
FBarToSpaceRatio := 1;
|
| 1299 |
FBarNarrowToWideRatio := bcDefNarrowToWideRatio;
|
| 1300 |
FBarWidth := 12;
|
| 1301 |
FShowCode := True;
|
| 1302 |
FShowGuardChars := False;
|
| 1303 |
FTallGuardBars := False;
|
| 1304 |
FExtendedSyntax := False;
|
| 1305 |
end;
|
| 1306 |
|
| 1307 |
destructor TStBarCode.Destroy;
|
| 1308 |
begin
|
| 1309 |
bcBarInfo.Free;
|
| 1310 |
bcBarInfo := nil;
|
| 1311 |
|
| 1312 |
inherited Destroy;
|
| 1313 |
end;
|
| 1314 |
|
| 1315 |
function TStBarCode.DrawBar(XPos, YPos, AWidth, AHeight : Integer) : Integer;
|
| 1316 |
begin
|
| 1317 |
Canvas.Rectangle(XPos, YPos, XPos+AWidth, YPos+AHeight);
|
| 1318 |
Result := XPos + AWidth;
|
| 1319 |
end;
|
| 1320 |
|
| 1321 |
procedure TStBarCode.DrawBarCode(const R : TRect);
|
| 1322 |
var
|
| 1323 |
I, X, Y : Integer;
|
| 1324 |
CheckC : Integer;
|
| 1325 |
CheckK : Integer;
|
| 1326 |
TH, GA, TQ, BB : Integer;
|
| 1327 |
BarCodeHeight : Integer;
|
| 1328 |
BarCodeWidth : Integer;
|
| 1329 |
PixelsPerInchX : Integer;
|
| 1330 |
TR : TRect;
|
| 1331 |
SmallestWidth : Double;
|
| 1332 |
C : string;
|
| 1333 |
Buf : array[0..512] of Char;
|
| 1334 |
begin
|
| 1335 |
Canvas.Brush.Color := FBarColor;
|
| 1336 |
Canvas.Brush.Style := bsSolid;
|
| 1337 |
|
| 1338 |
PixelsPerInchX := GetDeviceCaps(Canvas.Handle, LOGPIXELSX);
|
| 1339 |
|
| 1340 |
{determine narrowest line width}
|
| 1341 |
SmallestWidth := SmallestLineWidth(PixelsPerInchX);
|
| 1342 |
|
| 1343 |
{find sizes for the BarCode elements}
|
| 1344 |
bcBarModWidth := Round(FBarWidth/1000 * PixelsPerInchX);
|
| 1345 |
if bcBarModWidth < FBarToSpaceRatio then
|
| 1346 |
bcBarModWidth := Round(BarToSpaceRatio);
|
| 1347 |
if bcBarModWidth < SmallestWidth then
|
| 1348 |
bcBarModWidth := Round(SmallestWidth);
|
| 1349 |
bcSpaceModWidth := Round(bcBarModWidth / FBarToSpaceRatio);
|
| 1350 |
|
| 1351 |
{total width of BarCode and position within rect}
|
| 1352 |
CalcBarCodeWidth;
|
| 1353 |
BarCodeWidth := bcNormalWidth + bcSpaceWidth + bcSupplementWidth;
|
| 1354 |
BarCodeHeight := RectHeight(R);
|
| 1355 |
if BarCodeWidth < RectWidth(R) then
|
| 1356 |
X := R.Left + (RectWidth(R)-BarCodeWidth) div 2
|
| 1357 |
else
|
| 1358 |
X := R.Left;
|
| 1359 |
Y := R.Top;
|
| 1360 |
|
| 1361 |
{get text height}
|
| 1362 |
TH := Canvas.TextHeight('Yg0');
|
| 1363 |
|
| 1364 |
{guard bar adjustment}
|
| 1365 |
GA := (BarCodeHeight*10) div 100; {10% of bar height}
|
| 1366 |
{but, not more than 1/4 of the font height}
|
| 1367 |
if FShowCode and (GA > TH div 4) then
|
| 1368 |
GA := TH div 4;
|
| 1369 |
|
| 1370 |
{three quarter height bar adjustment}
|
| 1371 |
TQ := BarCodeHeight div 4;
|
| 1372 |
|
| 1373 |
{draw the text}
|
| 1374 |
if FShowCode and (Code > '') then begin
|
| 1375 |
C := Code;
|
| 1376 |
{fill out invalid codes}
|
| 1377 |
case FBarCodeType of
|
| 1378 |
bcUPC_A :
|
| 1379 |
begin
|
| 1380 |
C := Copy(C, 1, 12); {truncate}
|
| 1381 |
if Length(C) = 11 then begin
|
| 1382 |
GetCheckCharacters(C, CheckC, CheckK);
|
| 1383 |
C := C + IntToStr(CheckC);
|
| 1384 |
end;
|
| 1385 |
while Length(C) < 12 do
|
| 1386 |
C := C + '0';
|
| 1387 |
end;
|
| 1388 |
bcUPC_E :
|
| 1389 |
begin
|
| 1390 |
C := Copy(C, 1, 6); {truncate}
|
| 1391 |
while Length(C) < 6 do
|
| 1392 |
C := C + '0';
|
| 1393 |
end;
|
| 1394 |
bcEAN_8 :
|
| 1395 |
begin
|
| 1396 |
C := Copy(C, 1, 8); {truncate}
|
| 1397 |
if Length(C) = 7 then begin
|
| 1398 |
GetCheckCharacters(C, CheckC, CheckK);
|
| 1399 |
C := C + IntToStr(CheckC);
|
| 1400 |
end;
|
| 1401 |
while Length(C) < 8 do
|
| 1402 |
C := C + '0';
|
| 1403 |
end;
|
| 1404 |
bcEAN_13 :
|
| 1405 |
begin
|
| 1406 |
C := Copy(C, 1, 13); {truncate}
|
| 1407 |
if Length(C) = 12 then begin
|
| 1408 |
GetCheckCharacters(C, CheckC, CheckK);
|
| 1409 |
C := C + IntToStr(CheckC);
|
| 1410 |
end;
|
| 1411 |
while Length(C) < 13 do
|
| 1412 |
C := C + '0';
|
| 1413 |
end;
|
| 1414 |
bcInterleaved2of5 :
|
| 1415 |
begin
|
| 1416 |
if Odd(Length(C)) then
|
| 1417 |
C := '0' + C;
|
| 1418 |
end;
|
| 1419 |
bcCodabar :
|
| 1420 |
begin
|
| 1421 |
if not FShowGuardChars then
|
| 1422 |
{strip leading and trailing characters}
|
| 1423 |
C := Copy(C, 2, Length(C)-2);
|
| 1424 |
end;
|
| 1425 |
bcCode11 :
|
| 1426 |
begin
|
| 1427 |
end;
|
| 1428 |
bcCode39 :
|
| 1429 |
begin
|
| 1430 |
{add guard characters}
|
| 1431 |
if C[1] <> '*' then
|
| 1432 |
C := '*' + C;
|
| 1433 |
if C[Length(C)] <> '*' then
|
| 1434 |
C := C + '*';
|
| 1435 |
if not FShowGuardChars then
|
| 1436 |
{strip leading and trailing characters}
|
| 1437 |
C := Copy(C, 2, Length(C)-2);
|
| 1438 |
end;
|
| 1439 |
bcCode93 :
|
| 1440 |
begin
|
| 1441 |
{remove non-printable characters}
|
| 1442 |
for I := 1 to Length(C) do
|
| 1443 |
if C[I] < ' ' then
|
| 1444 |
C[I] := ' ';
|
| 1445 |
end;
|
| 1446 |
bcCode128 :
|
| 1447 |
begin
|
| 1448 |
{remove non-printable characters}
|
| 1449 |
I := 1;
|
| 1450 |
while I <= Length (C) do begin
|
| 1451 |
if C[I] < ' ' then
|
| 1452 |
C[I] := ' ';
|
| 1453 |
if (i < Length (C)) and (ExtendedSyntax) then begin
|
| 1454 |
if (C[I] = '\') and
|
| 1455 |
(C[I + 1] in ['A', 'B', 'C', 'a', 'b', 'c']) then begin
|
| 1456 |
C[I] := ' ';
|
| 1457 |
C[I + 1] := ' ';
|
| 1458 |
Inc (I);
|
| 1459 |
end else if (C[I] = '\') and (C[I+1] = '\') then begin
|
| 1460 |
C[I] := ' ';
|
| 1461 |
Inc (I);
|
| 1462 |
end;
|
| 1463 |
end;
|
| 1464 |
Inc (I);
|
| 1465 |
end;
|
| 1466 |
end;
|
| 1467 |
end;
|
| 1468 |
|
| 1469 |
Dec(BarCodeHeight, TH + (TH div 4));
|
| 1470 |
Canvas.Brush.Style := bsClear;
|
| 1471 |
{guard bar adjustment - again}
|
| 1472 |
GA := (BarCodeHeight*10) div 100; {10% of bar height}
|
| 1473 |
{but, not more than 1/4 of the font height}
|
| 1474 |
if FShowCode and (GA > TH div 4) then
|
| 1475 |
GA := TH div 4;
|
| 1476 |
{three quarter height bar adjustment}
|
| 1477 |
TQ := BarCodeHeight div 4;
|
| 1478 |
|
| 1479 |
if FBarCodeType = bcUPC_A then begin
|
| 1480 |
{print first and last character to sides of symbol}
|
| 1481 |
TR.Top := Y;
|
| 1482 |
TR.Bottom := TR.Top + BarCodeHeight;
|
| 1483 |
{left hand character}
|
| 1484 |
Buf[0] := C[1];
|
| 1485 |
TR.Right := X;
|
| 1486 |
TR.Left := X - 2 * Canvas.TextWidth(C[1]);
|
| 1487 |
DrawText(Canvas.Handle, @Buf, 1, TR, DT_BOTTOM or DT_CENTER or DT_SINGLELINE);
|
| 1488 |
{remove character from code to print}
|
| 1489 |
C := Copy(C, 2, Length(C)-1);
|
| 1490 |
|
| 1491 |
{right hand character - if no supplemental code}
|
| 1492 |
if FSupplementalCode = '' then begin
|
| 1493 |
Buf[0] := C[Length(C)];
|
| 1494 |
TR.Left := X + bcNormalWidth;
|
| 1495 |
TR.Right := X + bcNormalWidth + 2 * Canvas.TextWidth(C[Length(C)]);
|
| 1496 |
DrawText(Canvas.Handle, @Buf, 1, TR, DT_BOTTOM or DT_CENTER or DT_SINGLELINE);
|
| 1497 |
{remove character from code to print}
|
| 1498 |
C := Copy(C, 1, Length(C)-1);
|
| 1499 |
end;
|
| 1500 |
end;
|
| 1501 |
|
| 1502 |
if FSupplementalCode > '' then begin
|
| 1503 |
{draw supplemental code above the code}
|
| 1504 |
TR.Top := Y + TQ - TH;
|
| 1505 |
TR.Bottom := Y + BarCodeHeight;
|
| 1506 |
TR.Left := X + bcNormalWidth + bcSpaceWidth;
|
| 1507 |
TR.Right := TR.Left + bcSupplementWidth;
|
| 1508 |
StrPLCopy(Buf, FSupplementalCode, Length(Buf)-1);
|
| 1509 |
DrawText(Canvas.Handle, @Buf, StrLen(Buf), TR, DT_VCENTER or DT_CENTER);
|
| 1510 |
end;
|
| 1511 |
|
| 1512 |
TR := R;
|
| 1513 |
TR.Top := R.Top + BarCodeHeight + (TH div 4);
|
| 1514 |
TR.Left := X;
|
| 1515 |
TR.Right := TR.Left + bcNormalWidth;
|
| 1516 |
Canvas.Brush.Style := bsClear;
|
| 1517 |
StrPLCopy(Buf, C, Length(Buf)-1);
|
| 1518 |
DrawText(Canvas.Handle, @Buf, StrLen(Buf), TR, DT_VCENTER or DT_CENTER);
|
| 1519 |
Canvas.Brush.Style := bsSolid;
|
| 1520 |
Canvas.Brush.Color := FBarColor;
|
| 1521 |
end;
|
| 1522 |
|
| 1523 |
if (FBarCodeType = bcInterleaved2of5) and FBearerBars then begin
|
| 1524 |
BB := 3 * bcBarModWidth;
|
| 1525 |
{reduce height to allow for bearer bars}
|
| 1526 |
Dec(BarCodeHeight, BB * 2);
|
| 1527 |
{draw the bearer bars}
|
| 1528 |
Canvas.Rectangle(X-bcBarModWidth, Y,
|
| 1529 |
X+BarCodeWidth+bcBarModWidth, Y+BB);
|
| 1530 |
Canvas.Rectangle(X-bcBarModWidth, Y+BarCodeHeight+BB,
|
| 1531 |
X+BarCodeWidth+bcBarModWidth, Y+BarCodeHeight+BB*2);
|
| 1532 |
{adjust top of BarCode}
|
| 1533 |
Inc(Y, BB);
|
| 1534 |
end;
|
| 1535 |
|
| 1536 |
{draw the bar code}
|
| 1537 |
for I := 0 to bcBarInfo.Count-1 do begin
|
| 1538 |
if bkSpace in bcBarInfo[I].Kind then
|
| 1539 |
Inc(X, bcSpaceModWidth*bcBarInfo[I].Modules)
|
| 1540 |
else if (bkGuard in bcBarInfo[I].Kind) and FTallGuardBars then begin
|
| 1541 |
if bcGuardBarAbove and bcGuardBarBelow then
|
| 1542 |
X := DrawBar(X, Y-GA, bcBarModWidth*bcBarInfo[I].Modules, BarCodeHeight+2*GA)
|
| 1543 |
else if bcGuardBarAbove then
|
| 1544 |
X := DrawBar(X, Y-GA, bcBarModWidth*bcBarInfo[I].Modules, BarCodeHeight+GA)
|
| 1545 |
else if bcGuardBarBelow then
|
| 1546 |
X := DrawBar(X, Y, bcBarModWidth*bcBarInfo[I].Modules, BarCodeHeight+2*GA)
|
| 1547 |
end else if (bkBar in bcBarInfo[I].Kind) or (bkGuard in bcBarInfo[I].Kind) then
|
| 1548 |
X := DrawBar(X, Y, bcBarModWidth*bcBarInfo[I].Modules, BarCodeHeight)
|
| 1549 |
else if (bkThreeQuarterBar in bcBarInfo[I].Kind) then
|
| 1550 |
X := DrawBar(X, Y+TQ, bcBarModWidth*bcBarInfo[I].Modules, BarCodeHeight-TQ);
|
| 1551 |
end;
|
| 1552 |
end;
|
| 1553 |
|
| 1554 |
{added}
|
| 1555 |
function TStBarCode.GetBarCodeWidth(ACanvas : TCanvas) : Double;
|
| 1556 |
var
|
| 1557 |
PixelsPerInchX : Integer;
|
| 1558 |
SmallestWidth : Double;
|
| 1559 |
begin
|
| 1560 |
PixelsPerInchX := GetDeviceCaps(ACanvas.Handle, LOGPIXELSX);
|
| 1561 |
|
| 1562 |
{determine narrowest line width}
|
| 1563 |
SmallestWidth := SmallestLineWidth(PixelsPerInchX);
|
| 1564 |
|
| 1565 |
{find sizes for the BarCode elements}
|
| 1566 |
bcBarModWidth := Round(FBarWidth/1000 * PixelsPerInchX);
|
| 1567 |
if bcBarModWidth < FBarToSpaceRatio then
|
| 1568 |
bcBarModWidth := Round(BarToSpaceRatio);
|
| 1569 |
if bcBarModWidth < SmallestWidth then
|
| 1570 |
bcBarModWidth := Round(SmallestWidth);
|
| 1571 |
bcSpaceModWidth := Round(bcBarModWidth / FBarToSpaceRatio);
|
| 1572 |
|
| 1573 |
CalcBarcodeWidth;
|
| 1574 |
|
| 1575 |
{width in pixels (not counting text printed to left or right of code)}
|
| 1576 |
Result := bcNormalWidth + bcSpaceWidth + bcSupplementWidth;
|
| 1577 |
{return width of barcode in inches}
|
| 1578 |
Result := Result / PixelsPerInchX;
|
| 1579 |
end;
|
| 1580 |
|
| 1581 |
procedure TStBarCode.GetCheckCharacters(const S : string; var C, K : Integer);
|
| 1582 |
var
|
| 1583 |
I : Integer;
|
| 1584 |
C1 : Integer;
|
| 1585 |
C2 : Integer;
|
| 1586 |
St : string;
|
| 1587 |
begin
|
| 1588 |
C := -1;
|
| 1589 |
K := -1;
|
| 1590 |
St := S;
|
| 1591 |
case FBarCodeType of
|
| 1592 |
bcUPC_A :
|
| 1593 |
begin
|
| 1594 |
if Length(St) >= 11 then begin
|
| 1595 |
{get digits}
|
| 1596 |
GetDigits(St);
|
| 1597 |
{determine check character}
|
| 1598 |
C1 := (bcDigits[1] + bcDigits[3] + bcDigits[5] + bcDigits[7] +
|
| 1599 |
bcDigits[9] + bcDigits[11]) * 3;
|
| 1600 |
C2 := bcDigits[2] + bcDigits[4] + bcDigits[6] +
|
| 1601 |
bcDigits[8] + bcDigits[10];
|
| 1602 |
C := 10 - ((C1 + C2) mod 10);
|
| 1603 |
if C = 10 then
|
| 1604 |
C := 0;
|
| 1605 |
end;
|
| 1606 |
end;
|
| 1607 |
bcUPC_E :
|
| 1608 |
begin
|
| 1609 |
{get digits}
|
| 1610 |
GetDigits(St);
|
| 1611 |
{determine check character}
|
| 1612 |
C1 := (bcDigits[2] + bcDigits[4] + bcDigits[6]) * 3;
|
| 1613 |
C2 := bcDigits[1] + bcDigits[3] + bcDigits[5];
|
| 1614 |
C := 10 - ((C1 + C2) mod 10);
|
| 1615 |
if C = 10 then
|
| 1616 |
C := 0;
|
| 1617 |
end;
|
| 1618 |
bcEAN_8 :
|
| 1619 |
begin
|
| 1620 |
if Length(St) >= 7 then begin
|
| 1621 |
{get digits}
|
| 1622 |
GetDigits(St);
|
| 1623 |
{determine check character}
|
| 1624 |
C1 := (bcDigits[1] + bcDigits[3] + bcDigits[5] + bcDigits[7]) * 3;
|
| 1625 |
C2 := bcDigits[2] + bcDigits[4] + bcDigits[6];
|
| 1626 |
C := 10 - ((C1 + C2) mod 10);
|
| 1627 |
if C = 10 then
|
| 1628 |
C := 0;
|
| 1629 |
end;
|
| 1630 |
end;
|
| 1631 |
bcEAN_13 :
|
| 1632 |
begin
|
| 1633 |
if Length(St) >= 12 then begin
|
| 1634 |
{get digits}
|
| 1635 |
GetDigits(St);
|
| 1636 |
{determine check character}
|
| 1637 |
C1 := (bcDigits[2] + bcDigits[4] + bcDigits[6] + bcDigits[8] +
|
| 1638 |
bcDigits[10] + bcDigits[12]) * 3;
|
| 1639 |
C2 := bcDigits[1] + bcDigits[3] + bcDigits[5] + bcDigits[7] +
|
| 1640 |
bcDigits[9] + bcDigits[11];
|
| 1641 |
C := 10 - ((C1 + C2) mod 10);
|
| 1642 |
if C = 10 then
|
| 1643 |
C := 0;
|
| 1644 |
end;
|
| 1645 |
end;
|
| 1646 |
bcInterleaved2of5 :
|
| 1647 |
begin
|
| 1648 |
{get digits}
|
| 1649 |
bcDigitCount := GetDigits(St);
|
| 1650 |
|
| 1651 |
C1 := 0;
|
| 1652 |
C2 := 0;
|
| 1653 |
for I := 1 to bcDigitCount do
|
| 1654 |
if Odd(I) then
|
| 1655 |
C1 := C1 + bcDigits[I] {odd digits}
|
| 1656 |
else
|
| 1657 |
C2 := C2 + bcDigits[I]; {even digits}
|
| 1658 |
C2 := C2 * 3;
|
| 1659 |
|
| 1660 |
C := 10 - ((C1 + C2) mod 10);
|
| 1661 |
if C = 10 then
|
| 1662 |
C := 0;
|
| 1663 |
end;
|
| 1664 |
bcCodabar :
|
| 1665 |
begin
|
| 1666 |
{get digits}
|
| 1667 |
bcDigitCount := GetDigits(St);
|
| 1668 |
|
| 1669 |
C1 := 0;
|
| 1670 |
for I := 1 to bcDigitCount do
|
| 1671 |
C1 := C1 + bcDigits[I];
|
| 1672 |
|
| 1673 |
C := 16 - (C1 mod 16);
|
| 1674 |
if C = 16 then
|
| 1675 |
C := 0;
|
| 1676 |
end;
|
| 1677 |
bcCode11 :
|
| 1678 |
begin
|
| 1679 |
{get digits}
|
| 1680 |
bcDigitCount := GetDigits(St);
|
| 1681 |
C1 := 0;
|
| 1682 |
for I := bcDigitCount downto 1 do
|
| 1683 |
C1 := C1 + bcDigits[I]*(bcDigitCount-I+1);
|
| 1684 |
C1 := C1 mod 11; {the "C" check character}
|
| 1685 |
C2 := C1;
|
| 1686 |
for I := bcDigitCount downto 1 do
|
| 1687 |
C2 := C2 + bcDigits[I]*(bcDigitCount-I+2);
|
| 1688 |
C2 := C2 mod 11; {the "K" check character}
|
| 1689 |
K := C2;
|
| 1690 |
C := C1;
|
| 1691 |
end;
|
| 1692 |
bcCode39 :
|
| 1693 |
begin
|
| 1694 |
{get digits}
|
| 1695 |
bcDigitCount := GetDigits(St);
|
| 1696 |
|
| 1697 |
C1 := 0;
|
| 1698 |
for I := 1 to bcDigitCount do
|
| 1699 |
C1 := C1 + bcDigits[I];
|
| 1700 |
|
| 1701 |
C := 43 - (C1 mod 43);
|
| 1702 |
if C = 43 then
|
| 1703 |
C := 0;
|
| 1704 |
end;
|
| 1705 |
bcCode93 :
|
| 1706 |
begin
|
| 1707 |
{get digits}
|
| 1708 |
bcDigitCount := GetDigits(St);
|
| 1709 |
C1 := 0;
|
| 1710 |
for I := bcDigitCount downto 1 do
|
| 1711 |
C1 := C1 + bcDigits[I]*(bcDigitCount-I+1);
|
| 1712 |
C1 := C1 mod 47; {the "C" check character}
|
| 1713 |
C2 := C1;
|
| 1714 |
for I := bcDigitCount downto 1 do
|
| 1715 |
C2 := C2 + bcDigits[I]*(bcDigitCount-I+2);
|
| 1716 |
C2 := C2 mod 47; {the "K" check character}
|
| 1717 |
K := C2;
|
| 1718 |
C := C1;
|
| 1719 |
end;
|
| 1720 |
bcCode128 :
|
| 1721 |
begin
|
| 1722 |
{get digits}
|
| 1723 |
bcDigitCount := GetDigits(St);
|
| 1724 |
|
| 1725 |
C1 := bcDigits[1];
|
| 1726 |
for I := 2 to bcDigitCount do
|
| 1727 |
C1 := C1 + bcDigits[I]*(I-1);
|
| 1728 |
|
| 1729 |
C := C1 mod 103;
|
| 1730 |
if C = 103 then
|
| 1731 |
C := 0;
|
| 1732 |
end;
|
| 1733 |
end;
|
| 1734 |
end;
|
| 1735 |
|
| 1736 |
function TStBarCode.GetCode : string;
|
| 1737 |
begin
|
| 1738 |
Result := Text;
|
| 1739 |
end;
|
| 1740 |
|
| 1741 |
function TStBarCode.GetDigits(Characters : string) : Integer;
|
| 1742 |
|
| 1743 |
procedure GetACode128CDigit (c : Char; var Index : Integer;
|
| 1744 |
var bcDigitPos : Integer);
|
| 1745 |
var
|
| 1746 |
J : Integer;
|
| 1747 |
|
| 1748 |
begin
|
| 1749 |
case (c) of
|
| 1750 |
#130 : bcDigits[bcDigitPos + 1] := 98; {rest are manufactured characters}
|
| 1751 |
#131 : bcDigits[bcDigitPos + 1] := 97;
|
| 1752 |
#132 : bcDigits[bcDigitPos + 1] := 96;
|
| 1753 |
#133 : bcDigits[bcDigitPos + 1] := 98;
|
| 1754 |
#134 : bcDigits[bcDigitPos + 1] := 100;
|
| 1755 |
#135 : bcDigits[bcDigitPos + 1] := 99;
|
| 1756 |
#136 : bcDigits[bcDigitPos + 1] := 103;
|
| 1757 |
#137 : bcDigits[bcDigitPos + 1] := 104;
|
| 1758 |
#138 : bcDigits[bcDigitPos + 1] := 105;
|
| 1759 |
#139 : bcDigits[bcDigitPos + 1] := 106;
|
| 1760 |
else
|
| 1761 |
try
|
| 1762 |
J := StrToInt (Copy (Characters, Index, 2));
|
| 1763 |
bcDigits[bcDigitPos + 1] := J;
|
| 1764 |
Inc (Index);
|
| 1765 |
except
|
| 1766 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 1767 |
end;
|
| 1768 |
end;
|
| 1769 |
Inc (Index);
|
| 1770 |
Inc (bcDigitPos);
|
| 1771 |
end;
|
| 1772 |
|
| 1773 |
procedure GetACode128ABDigit (c : Char; var Index : Integer;
|
| 1774 |
var bcDigitPos : Integer);
|
| 1775 |
begin
|
| 1776 |
case c of
|
| 1777 |
' ' : bcDigits[bcDigitPos + 1] := 0;
|
| 1778 |
'!' : bcDigits[bcDigitPos + 1] := 1;
|
| 1779 |
'"' : bcDigits[bcDigitPos + 1] := 2;
|
| 1780 |
'#' : bcDigits[bcDigitPos + 1] := 3;
|
| 1781 |
'$' : bcDigits[bcDigitPos + 1] := 4;
|
| 1782 |
'%' : bcDigits[bcDigitPos + 1] := 5;
|
| 1783 |
'&' : bcDigits[bcDigitPos + 1] := 6;
|
| 1784 |
'''' : bcDigits[bcDigitPos + 1] := 7;
|
| 1785 |
'(' : bcDigits[bcDigitPos + 1] := 8;
|
| 1786 |
')' : bcDigits[bcDigitPos + 1] := 9;
|
| 1787 |
'*' : bcDigits[bcDigitPos + 1] := 10;
|
| 1788 |
'+' : bcDigits[bcDigitPos + 1] := 11;
|
| 1789 |
',' : bcDigits[bcDigitPos + 1] := 12;
|
| 1790 |
'-' : bcDigits[bcDigitPos + 1] := 13;
|
| 1791 |
'.' : bcDigits[bcDigitPos + 1] := 14;
|
| 1792 |
'/' : bcDigits[bcDigitPos + 1] := 15;
|
| 1793 |
'0'..'9' : bcDigits[bcDigitPos + 1] := 16 + Ord(c)-Ord('0');
|
| 1794 |
':' : bcDigits[bcDigitPos + 1] := 26;
|
| 1795 |
';' : bcDigits[bcDigitPos + 1] := 27;
|
| 1796 |
'<' : bcDigits[bcDigitPos + 1] := 28;
|
| 1797 |
'=' : bcDigits[bcDigitPos + 1] := 29;
|
| 1798 |
'>' : bcDigits[bcDigitPos + 1] := 30;
|
| 1799 |
'?' : bcDigits[bcDigitPos + 1] := 31;
|
| 1800 |
'@' : bcDigits[bcDigitPos + 1] := 32;
|
| 1801 |
'A'..'Z' : bcDigits[bcDigitPos + 1] := 33 + Ord(c)-Ord('A');
|
| 1802 |
'[' : bcDigits[bcDigitPos + 1] := 59;
|
| 1803 |
'\' : bcDigits[bcDigitPos + 1] := 60;
|
| 1804 |
']' : bcDigits[bcDigitPos + 1] := 61;
|
| 1805 |
'^' : bcDigits[bcDigitPos + 1] := 62;
|
| 1806 |
'_' : bcDigits[bcDigitPos + 1] := 63;
|
| 1807 |
#0, #31 : bcDigits[bcDigitPos + 1] := 64 + Ord(c); {control characters}
|
| 1808 |
'`' : bcDigits[bcDigitPos + 1] := 64;
|
| 1809 |
'a'..'z' : bcDigits[bcDigitPos + 1] := 65 + Ord(c)-Ord('a');
|
| 1810 |
'{' : bcDigits[bcDigitPos + 1] := 91;
|
| 1811 |
'|' : bcDigits[bcDigitPos + 1] := 92;
|
| 1812 |
'}' : bcDigits[bcDigitPos + 1] := 93;
|
| 1813 |
'~' : bcDigits[bcDigitPos + 1] := 94;
|
| 1814 |
#130 : bcDigits[bcDigitPos + 1] := 98; {rest are manufactured characters}
|
| 1815 |
#131 : bcDigits[bcDigitPos + 1] := 97;
|
| 1816 |
#132 : bcDigits[bcDigitPos + 1] := 96;
|
| 1817 |
#133 : bcDigits[bcDigitPos + 1] := 98;
|
| 1818 |
#134 : bcDigits[bcDigitPos + 1] := 100;
|
| 1819 |
#135 : bcDigits[bcDigitPos + 1] := 99;
|
| 1820 |
#136 : bcDigits[bcDigitPos + 1] := 103;
|
| 1821 |
#137 : bcDigits[bcDigitPos + 1] := 104;
|
| 1822 |
#138 : bcDigits[bcDigitPos + 1] := 105;
|
| 1823 |
#139 : bcDigits[bcDigitPos + 1] := 106;
|
| 1824 |
else
|
| 1825 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 1826 |
end;
|
| 1827 |
Inc (Index);
|
| 1828 |
Inc (bcDigitPos);
|
| 1829 |
end;
|
| 1830 |
|
| 1831 |
function CountCode128Digits (Index : Integer) : Integer;
|
| 1832 |
begin
|
| 1833 |
Result := 0;
|
| 1834 |
while (Index <= Length (Characters)) and
|
| 1835 |
(Characters[Index] >= '0') and (Characters[Index] <= '9') do begin
|
| 1836 |
Inc (Result);
|
| 1837 |
Inc (Index);
|
| 1838 |
end;
|
| 1839 |
end;
|
| 1840 |
|
| 1841 |
function CheckCode128Digits (Index : Integer; CharsLen : Integer) : Boolean;
|
| 1842 |
var
|
| 1843 |
NumDigits : Integer;
|
| 1844 |
begin
|
| 1845 |
Result := False;
|
| 1846 |
NumDigits := CountCode128Digits (Index);
|
| 1847 |
if NumDigits mod 2 <> 0 then begin
|
| 1848 |
Characters := Copy (Characters, 1, Index - 1) +
|
| 1849 |
'0' + Copy (Characters, Index, CharsLen - Index + 1);
|
| 1850 |
Result := True;
|
| 1851 |
end;
|
| 1852 |
end;
|
| 1853 |
|
| 1854 |
function GetCode128Digits : Integer;
|
| 1855 |
var
|
| 1856 |
I : Integer;
|
| 1857 |
RLen : Integer;
|
| 1858 |
CurMode : TStCode128CodeSubset;
|
| 1859 |
NeedCharCount : Boolean;
|
| 1860 |
Skip : Boolean;
|
| 1861 |
|
| 1862 |
begin
|
| 1863 |
I := 1;
|
| 1864 |
Result := Length (Characters);
|
| 1865 |
RLen := 0;
|
| 1866 |
CurMode := Self.Code128Subset;
|
| 1867 |
NeedCharCount := Self.Code128Subset = csCodeC;
|
| 1868 |
|
| 1869 |
while I <= Result do begin
|
| 1870 |
if (NeedCharCount) and
|
| 1871 |
(Characters[I] >= '0') and (Characters[I] <= '9') then begin
|
| 1872 |
NeedCharCount := False;
|
| 1873 |
if CheckCode128Digits (I, Result) then
|
| 1874 |
Inc (Result);
|
| 1875 |
end;
|
| 1876 |
|
| 1877 |
Skip := False;
|
| 1878 |
if (ExtendedSyntax) and (Characters[I] = '\') and
|
| 1879 |
(I < Result) then begin
|
| 1880 |
if ((Characters[I + 1] = 'A') or (Characters[I + 1] = 'a')) and
|
| 1881 |
(CurMode <> csCodeA) then begin
|
| 1882 |
Inc (RLen);
|
| 1883 |
bcDigits[RLen] := 101;
|
| 1884 |
CurMode := csCodeA;
|
| 1885 |
Skip := True;
|
| 1886 |
end else if ((Characters[I + 1] = 'B') or (Characters[I + 1] = 'b')) and
|
| 1887 |
(CurMode <> csCodeB) then begin
|
| 1888 |
Inc (RLen);
|
| 1889 |
bcDigits[RLen] := 100;
|
| 1890 |
CurMode :=csCodeB;
|
| 1891 |
Skip := True;
|
| 1892 |
end else if ((Characters[I + 1] = 'C') or (Characters[I + 1] = 'c')) and
|
| 1893 |
(CurMode <> csCodeC) then begin
|
| 1894 |
NeedCharCount := True;
|
| 1895 |
Inc (RLen);
|
| 1896 |
bcDigits[RLen] := 99;
|
| 1897 |
CurMode := csCodeC;
|
| 1898 |
Skip := True;
|
| 1899 |
end else if (Characters[I + 1] = '\') then begin
|
| 1900 |
GetACode128ABDigit ('\', I, RLen);
|
| 1901 |
Skip := True;
|
| 1902 |
end;
|
| 1903 |
Inc (I);
|
| 1904 |
end;
|
| 1905 |
|
| 1906 |
if not Skip then
|
| 1907 |
case CurMode of
|
| 1908 |
csCodeC :
|
| 1909 |
GetACode128CDigit (Characters[I], I, RLen);
|
| 1910 |
else
|
| 1911 |
GetACode128ABDigit (Characters[I], I, RLen);
|
| 1912 |
end
|
| 1913 |
else
|
| 1914 |
Inc (I);
|
| 1915 |
end;
|
| 1916 |
Result := RLen;
|
| 1917 |
end;
|
| 1918 |
|
| 1919 |
var
|
| 1920 |
I, J : Integer;
|
| 1921 |
S : string;
|
| 1922 |
begin
|
| 1923 |
FillChar(bcDigits, SizeOf(bcDigits), #0);
|
| 1924 |
Result := 0;
|
| 1925 |
|
| 1926 |
case FBarCodeType of
|
| 1927 |
bcUPC_A, bcUPC_E, bcEAN_8, bcEAN_13, bcInterleaved2of5 :
|
| 1928 |
begin
|
| 1929 |
Result := Length(Characters);
|
| 1930 |
for I := 1 to Result do
|
| 1931 |
bcDigits[I] := StrToInt(Characters[I]);
|
| 1932 |
end;
|
| 1933 |
bcCodabar :
|
| 1934 |
begin
|
| 1935 |
Result := Length(Characters);
|
| 1936 |
for I := 1 to Result do begin
|
| 1937 |
case Characters[I] of
|
| 1938 |
'0'..'9' : bcDigits[I] := StrToInt(Characters[I]);
|
| 1939 |
'-' : bcDigits[I] := 10;
|
| 1940 |
'$' : bcDigits[I] := 11;
|
| 1941 |
':' : bcDigits[I] := 12;
|
| 1942 |
'/' : bcDigits[I] := 13;
|
| 1943 |
'.' : bcDigits[I] := 14;
|
| 1944 |
'+' : bcDigits[I] := 15;
|
| 1945 |
'A', 'a' : bcDigits[I] := 16;
|
| 1946 |
'B', 'b' : bcDigits[I] := 17;
|
| 1947 |
'C', 'c' : bcDigits[I] := 18;
|
| 1948 |
'D', 'd' : bcDigits[I] := 19;
|
| 1949 |
else
|
| 1950 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 1951 |
end;
|
| 1952 |
end;
|
| 1953 |
end;
|
| 1954 |
bcCode11 :
|
| 1955 |
begin
|
| 1956 |
Result := Length(Characters);
|
| 1957 |
for I := 1 to Result do begin
|
| 1958 |
case Characters[I] of
|
| 1959 |
'0'..'9' : bcDigits[I] := StrToInt(Characters[I]);
|
| 1960 |
'-' : bcDigits[I] := 10;
|
| 1961 |
else
|
| 1962 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 1963 |
end;
|
| 1964 |
end;
|
| 1965 |
end;
|
| 1966 |
bcCode39 :
|
| 1967 |
begin
|
| 1968 |
Result := Length(Characters);
|
| 1969 |
for I := 1 to Result do begin
|
| 1970 |
case Characters[I] of
|
| 1971 |
'0'..'9' : bcDigits[I] := StrToInt(Characters[I]);
|
| 1972 |
'A'..'Z' : bcDigits[I] := Ord(Characters[I]) - Ord('A') + 10;
|
| 1973 |
'-' : bcDigits[I] := 36;
|
| 1974 |
'.' : bcDigits[I] := 37;
|
| 1975 |
' ' : bcDigits[I] := 38;
|
| 1976 |
'$' : bcDigits[I] := 39;
|
| 1977 |
'/' : bcDigits[I] := 40;
|
| 1978 |
'+' : bcDigits[I] := 41;
|
| 1979 |
'%' : bcDigits[I] := 42;
|
| 1980 |
'*' : bcDigits[I] := 43;
|
| 1981 |
else
|
| 1982 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 1983 |
end;
|
| 1984 |
end;
|
| 1985 |
end;
|
| 1986 |
bcCode93 :
|
| 1987 |
begin
|
| 1988 |
Result := Length(Characters);
|
| 1989 |
J := 1;
|
| 1990 |
I := 1;
|
| 1991 |
while I <= Result do begin
|
| 1992 |
S := Code93Map[Characters[I]];
|
| 1993 |
if Length(S) > 1 then begin
|
| 1994 |
case S[1] of
|
| 1995 |
'$' : bcDigits[J] := 43; {(+)}
|
| 1996 |
'%' : bcDigits[J] := 44; {(%)}
|
| 1997 |
'/' : bcDigits[J] := 45; {(/)}
|
| 1998 |
'+' : bcDigits[J] := 46; {(+)}
|
| 1999 |
else
|
| 2000 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2001 |
end;
|
| 2002 |
Inc(J);
|
| 2003 |
S := S[2];
|
| 2004 |
end;
|
| 2005 |
|
| 2006 |
case S[1] of
|
| 2007 |
'0'..'9' : bcDigits[J] := Ord(S[1])-Ord('0');
|
| 2008 |
'A'..'Z' : bcDigits[J] := 10 + Ord(S[1])-Ord('A');
|
| 2009 |
'-' : bcDigits[J] := 36;
|
| 2010 |
'.' : bcDigits[J] := 37;
|
| 2011 |
' ' : bcDigits[J] := 38;
|
| 2012 |
'$' : bcDigits[J] := 39;
|
| 2013 |
'/' : bcDigits[J] := 40;
|
| 2014 |
'+' : bcDigits[J] := 41;
|
| 2015 |
'%' : bcDigits[J] := 42;
|
| 2016 |
else
|
| 2017 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2018 |
end;
|
| 2019 |
Inc(I);
|
| 2020 |
Inc(J);
|
| 2021 |
end;
|
| 2022 |
Result := J;
|
| 2023 |
end;
|
| 2024 |
bcCode128 :
|
| 2025 |
Result := GetCode128Digits;
|
| 2026 |
end;
|
| 2027 |
end;
|
| 2028 |
|
| 2029 |
function TStBarCode.GetVersion : string;
|
| 2030 |
begin
|
| 2031 |
Result := StVersionStr;
|
| 2032 |
end;
|
| 2033 |
|
| 2034 |
procedure TStBarCode.Loaded;
|
| 2035 |
begin
|
| 2036 |
inherited Loaded;
|
| 2037 |
|
| 2038 |
CalcBarCode;
|
| 2039 |
end;
|
| 2040 |
|
| 2041 |
procedure TStBarCode.Paint;
|
| 2042 |
var
|
| 2043 |
Margin : Integer;
|
| 2044 |
R : TRect;
|
| 2045 |
begin
|
| 2046 |
{use our font}
|
| 2047 |
Canvas.Font := Font;
|
| 2048 |
|
| 2049 |
{clear the canvas}
|
| 2050 |
Canvas.Brush.Color := Color;
|
| 2051 |
Canvas.Brush.Style := bsSolid;
|
| 2052 |
Canvas.FillRect(ClientRect);
|
| 2053 |
|
| 2054 |
{adjust height of rect to provide top and bottom margin}
|
| 2055 |
R := ClientRect;
|
| 2056 |
Margin := RectHeight(R)*10 div 100;
|
| 2057 |
InflateRect(R, 0, -Margin);
|
| 2058 |
PaintPrim(R);
|
| 2059 |
end;
|
| 2060 |
|
| 2061 |
procedure TStBarCode.PaintPrim(const R : TRect);
|
| 2062 |
begin
|
| 2063 |
Canvas.Brush.Style := bsClear;
|
| 2064 |
Canvas.Brush.Color := FBarColor;
|
| 2065 |
Canvas.Pen.Color := FBarColor;
|
| 2066 |
DrawBarCode(R);
|
| 2067 |
end;
|
| 2068 |
|
| 2069 |
procedure TStBarCode.PaintToCanvas(ACanvas : TCanvas; ARect : TRect);
|
| 2070 |
var
|
| 2071 |
Margin : Integer;
|
| 2072 |
SavedDC : LongInt;
|
| 2073 |
R : TRect;
|
| 2074 |
begin
|
| 2075 |
Canvas.Handle := ACanvas.Handle;
|
| 2076 |
SavedDC := SaveDC(ACanvas.Handle);
|
| 2077 |
try
|
| 2078 |
{use our font}
|
| 2079 |
Canvas.Font := Font;
|
| 2080 |
|
| 2081 |
{clear the specified area of the canvas}
|
| 2082 |
Canvas.Brush.Color := Color;
|
| 2083 |
Canvas.Brush.Style := bsSolid;
|
| 2084 |
Canvas.FillRect(ARect);
|
| 2085 |
|
| 2086 |
{adjust height of rect to provide top and bottom margin}
|
| 2087 |
R := ARect;
|
| 2088 |
Margin := RectHeight(R)*10 div 100;
|
| 2089 |
InflateRect(R, 0, -Margin);
|
| 2090 |
PaintPrim(R);
|
| 2091 |
finally
|
| 2092 |
Canvas.Handle := 0;
|
| 2093 |
RestoreDC(ACanvas.Handle, SavedDC);
|
| 2094 |
end;
|
| 2095 |
end;
|
| 2096 |
|
| 2097 |
procedure TStBarCode.PaintToCanvasSize(ACanvas : TCanvas; X, Y, H : Double);
|
| 2098 |
var
|
| 2099 |
TH : Integer;
|
| 2100 |
PixelsPerInchX : Integer;
|
| 2101 |
PixelsPerInchY : Integer;
|
| 2102 |
OldPPI : Integer;
|
| 2103 |
SavedDC : LongInt;
|
| 2104 |
R : TRect;
|
| 2105 |
SmallestWidth : Double;
|
| 2106 |
begin
|
| 2107 |
Canvas.Handle := ACanvas.Handle;
|
| 2108 |
SavedDC := SaveDC(ACanvas.Handle);
|
| 2109 |
try
|
| 2110 |
{get some information about this device context}
|
| 2111 |
PixelsPerInchX := GetDeviceCaps(Canvas.Handle, LOGPIXELSX);
|
| 2112 |
PixelsPerInchY := GetDeviceCaps(Canvas.Handle, LOGPIXELSY);
|
| 2113 |
|
| 2114 |
OldPPI := Canvas.Font.PixelsPerInch;
|
| 2115 |
{this is necessary because of a Delphi buglet}
|
| 2116 |
Canvas.Font.PixelsPerInch := PixelsPerInchY;
|
| 2117 |
|
| 2118 |
{use our font}
|
| 2119 |
Canvas.Font := Font;
|
| 2120 |
|
| 2121 |
{determine narrowest line width}
|
| 2122 |
SmallestWidth := SmallestLineWidth(PixelsPerInchX);
|
| 2123 |
|
| 2124 |
{find sizes for the BarCode elements}
|
| 2125 |
bcBarModWidth := Round(FBarWidth/1000 * PixelsPerInchX);
|
| 2126 |
if bcBarModWidth < FBarToSpaceRatio then
|
| 2127 |
bcBarModWidth := Round(FBarToSpaceRatio);
|
| 2128 |
if bcBarModWidth < SmallestWidth then
|
| 2129 |
bcBarModWidth := Round(SmallestWidth);
|
| 2130 |
bcSpaceModWidth := Round(bcBarModWidth / FBarToSpaceRatio);
|
| 2131 |
CalcBarCodeWidth;
|
| 2132 |
|
| 2133 |
{convert to a rect}
|
| 2134 |
R := Rect(Round(X * PixelsPerInchX),
|
| 2135 |
Round(Y * PixelsPerInchY),
|
| 2136 |
Round(X * PixelsPerInchX) + bcNormalWidth + bcSpaceWidth + bcSupplementWidth,
|
| 2137 |
Round((Y + H) * PixelsPerInchY));
|
| 2138 |
|
| 2139 |
{increase height of rect to allow for text}
|
| 2140 |
if FShowCode and (Code > '') then begin
|
| 2141 |
TH :=Canvas.TextHeight(Code);
|
| 2142 |
Inc(R.Bottom, TH + (TH div 4));
|
| 2143 |
end;
|
| 2144 |
|
| 2145 |
PaintPrim(R);
|
| 2146 |
Canvas.Font.PixelsPerInch := OldPPI;
|
| 2147 |
Invalidate;
|
| 2148 |
finally
|
| 2149 |
Canvas.Handle := 0;
|
| 2150 |
RestoreDC(ACanvas.Handle, SavedDC);
|
| 2151 |
end;
|
| 2152 |
end;
|
| 2153 |
|
| 2154 |
procedure TStBarCode.PaintToDC(DC : hDC; ARect : TRect);
|
| 2155 |
var
|
| 2156 |
Margin : Integer;
|
| 2157 |
SavedDC : LongInt;
|
| 2158 |
R : TRect;
|
| 2159 |
begin
|
| 2160 |
Canvas.Handle := DC;
|
| 2161 |
SavedDC := SaveDC(DC);
|
| 2162 |
try
|
| 2163 |
{use our font}
|
| 2164 |
Canvas.Font := Font;
|
| 2165 |
|
| 2166 |
{clear the specified area of the canvas}
|
| 2167 |
Canvas.Brush.Color := Color;
|
| 2168 |
Canvas.Brush.Style := bsSolid;
|
| 2169 |
Canvas.FillRect(ARect);
|
| 2170 |
|
| 2171 |
{adjust height of rect to provide top and bottom margin}
|
| 2172 |
R := ARect;
|
| 2173 |
Margin := RectHeight(R)*10 div 100;
|
| 2174 |
InflateRect(R, 0, -Margin);
|
| 2175 |
PaintPrim(R);
|
| 2176 |
finally
|
| 2177 |
Canvas.Handle := 0;
|
| 2178 |
RestoreDC(DC, SavedDC);
|
| 2179 |
end;
|
| 2180 |
end;
|
| 2181 |
|
| 2182 |
procedure TStBarCode.PaintToDCSize(DC : hDC; X, Y, W, H : Double);
|
| 2183 |
begin
|
| 2184 |
Canvas.Handle := DC;
|
| 2185 |
PaintToCanvasSize(Canvas, X, Y, H);
|
| 2186 |
end;
|
| 2187 |
|
| 2188 |
procedure TStBarCode.SaveToFile(const FileName : string);
|
| 2189 |
var
|
| 2190 |
Bitmap : TBitmap;
|
| 2191 |
begin
|
| 2192 |
Bitmap := TBitmap.Create;
|
| 2193 |
try
|
| 2194 |
Bitmap.Width := ClientWidth;
|
| 2195 |
Bitmap.Height := ClientHeight;
|
| 2196 |
PaintToDC(Bitmap.Canvas.Handle, ClientRect);
|
| 2197 |
Bitmap.SaveToFile(FileName);
|
| 2198 |
finally
|
| 2199 |
Bitmap.Free;
|
| 2200 |
end
|
| 2201 |
end;
|
| 2202 |
|
| 2203 |
procedure TStBarCode.SetAddCheckChar(Value : Boolean);
|
| 2204 |
begin
|
| 2205 |
if Value <> FAddCheckChar then begin
|
| 2206 |
FAddCheckChar := Value;
|
| 2207 |
CalcBarCode;
|
| 2208 |
Invalidate;
|
| 2209 |
end;
|
| 2210 |
end;
|
| 2211 |
|
| 2212 |
procedure TStBarCode.SetBarCodeType(Value : TStBarCodeType);
|
| 2213 |
begin
|
| 2214 |
if Value <> FBarCodeType then begin
|
| 2215 |
FBarCodeType := Value;
|
| 2216 |
CalcBarCode;
|
| 2217 |
Invalidate;
|
| 2218 |
end;
|
| 2219 |
end;
|
| 2220 |
|
| 2221 |
procedure TStBarCode.SetBarColor(Value : TColor);
|
| 2222 |
begin
|
| 2223 |
if Value <> FBarColor then begin
|
| 2224 |
FBarColor := Value;
|
| 2225 |
Invalidate;
|
| 2226 |
end;
|
| 2227 |
end;
|
| 2228 |
|
| 2229 |
procedure TStBarCode.SetBarToSpaceRatio(Value : Double);
|
| 2230 |
begin
|
| 2231 |
{always uses a bar to space ratio of 1}
|
| 2232 |
if FBarCodeType in [bcInterleaved2of5, bcCode11, bcCode39, bcCode93, bcCode128] then
|
| 2233 |
Value := 1;
|
| 2234 |
|
| 2235 |
if Value <> FBarToSpaceRatio then begin
|
| 2236 |
FBarToSpaceRatio := Value;
|
| 2237 |
CalcBarCode;
|
| 2238 |
Invalidate;
|
| 2239 |
end;
|
| 2240 |
end;
|
| 2241 |
|
| 2242 |
procedure TStBarCode.SetBarNarrowToWideRatio(Value : Integer);
|
| 2243 |
begin
|
| 2244 |
if Value <> FBarNarrowToWideRatio then begin
|
| 2245 |
FBarNarrowToWideRatio := Value;
|
| 2246 |
CalcBarCode;
|
| 2247 |
Invalidate;
|
| 2248 |
end;
|
| 2249 |
end;
|
| 2250 |
|
| 2251 |
procedure TStBarCode.SetBarWidth(Value : Double);
|
| 2252 |
begin
|
| 2253 |
if Value <> FBarWidth then begin
|
| 2254 |
FBarWidth := Value;
|
| 2255 |
Invalidate;
|
| 2256 |
end;
|
| 2257 |
end;
|
| 2258 |
|
| 2259 |
procedure TStBarCode.SetBearerBars(Value : Boolean);
|
| 2260 |
begin
|
| 2261 |
if Value <> FBearerBars then begin
|
| 2262 |
FBearerBars := Value;
|
| 2263 |
Invalidate;
|
| 2264 |
end;
|
| 2265 |
end;
|
| 2266 |
|
| 2267 |
procedure TStBarCode.SetCode(const Value : string);
|
| 2268 |
begin
|
| 2269 |
if FBarCodeType in [bcCode39] then
|
| 2270 |
Text := UpperCase(Value)
|
| 2271 |
else if FBarCodeType in [bcCodabar] then
|
| 2272 |
Text := LowerCase(Value)
|
| 2273 |
else
|
| 2274 |
Text := Value;
|
| 2275 |
end;
|
| 2276 |
|
| 2277 |
procedure TStBarCode.SetCode128Subset(Value : TStCode128CodeSubset);
|
| 2278 |
begin
|
| 2279 |
if Value <> FCode128Subset then begin
|
| 2280 |
FCode128Subset := Value;
|
| 2281 |
CalcBarCode;
|
| 2282 |
Invalidate;
|
| 2283 |
end;
|
| 2284 |
end;
|
| 2285 |
|
| 2286 |
procedure TStBarCode.SetExtendedSyntax (const v : Boolean);
|
| 2287 |
begin
|
| 2288 |
if v <> FExtendedSyntax then begin
|
| 2289 |
FExtendedSyntax := v;
|
| 2290 |
CalcBarCode;
|
| 2291 |
Invalidate;
|
| 2292 |
end;
|
| 2293 |
end;
|
| 2294 |
|
| 2295 |
procedure TStBarCode.SetShowCode(Value : Boolean);
|
| 2296 |
begin
|
| 2297 |
if Value <> FShowCode then begin
|
| 2298 |
FShowCode := Value;
|
| 2299 |
Invalidate;
|
| 2300 |
end;
|
| 2301 |
end;
|
| 2302 |
|
| 2303 |
procedure TStBarCode.SetShowGuardChars(Value : Boolean);
|
| 2304 |
begin
|
| 2305 |
if Value <> FShowGuardChars then begin
|
| 2306 |
FShowGuardChars := Value;
|
| 2307 |
Invalidate;
|
| 2308 |
end;
|
| 2309 |
end;
|
| 2310 |
|
| 2311 |
procedure TStBarCode.SetSupplementalCode(const Value : string);
|
| 2312 |
begin
|
| 2313 |
if Value <> FSupplementalCode then begin
|
| 2314 |
FSupplementalCode := Value;
|
| 2315 |
CalcBarCode;
|
| 2316 |
Invalidate;
|
| 2317 |
end;
|
| 2318 |
end;
|
| 2319 |
|
| 2320 |
procedure TStBarCode.SetTallGuardBars(Value : Boolean);
|
| 2321 |
begin
|
| 2322 |
if Value <> FTallGuardBars then begin
|
| 2323 |
FTallGuardBars := Value;
|
| 2324 |
Invalidate;
|
| 2325 |
end;
|
| 2326 |
end;
|
| 2327 |
|
| 2328 |
procedure TStBarCode.SetVersion(const Value : string);
|
| 2329 |
begin
|
| 2330 |
end;
|
| 2331 |
|
| 2332 |
function TStBarCode.SmallestLineWidth(PixelsPerInch : Integer) : Double;
|
| 2333 |
begin
|
| 2334 |
Result := PixelsPerInch * 0.010; {10 mils}
|
| 2335 |
if Result < 1 then
|
| 2336 |
Result := 1;
|
| 2337 |
end;
|
| 2338 |
|
| 2339 |
function TStBarCode.Validate(DisplayError : Boolean) : Boolean;
|
| 2340 |
var
|
| 2341 |
I : Integer;
|
| 2342 |
CheckC : Integer;
|
| 2343 |
CheckK : Integer;
|
| 2344 |
begin
|
| 2345 |
Result := True;
|
| 2346 |
try
|
| 2347 |
case FBarCodeType of
|
| 2348 |
bcUPC_A :
|
| 2349 |
begin
|
| 2350 |
{11 or 12 characters}
|
| 2351 |
if not (Length(Code) in [11, 12]) then
|
| 2352 |
RaiseStError(EStBarCodeError, stscInvalidUPCACodeLen);
|
| 2353 |
try
|
| 2354 |
GetDigits(Code);
|
| 2355 |
except
|
| 2356 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2357 |
end;
|
| 2358 |
|
| 2359 |
GetCheckCharacters(Code, CheckC, CheckK);
|
| 2360 |
if (Length(Code) = 12) and (CheckC <> bcDigits[12]) then
|
| 2361 |
RaiseStError(EStBarCodeError, stscInvalidCheckCharacter);
|
| 2362 |
end;
|
| 2363 |
bcUPC_E :
|
| 2364 |
begin
|
| 2365 |
{6 characters}
|
| 2366 |
if not (Length(Code) = 6) then
|
| 2367 |
RaiseStError(EStBarCodeError, stscInvalidUPCACodeLen);
|
| 2368 |
try
|
| 2369 |
GetDigits(Code);
|
| 2370 |
except
|
| 2371 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2372 |
end;
|
| 2373 |
end;
|
| 2374 |
bcEAN_8 :
|
| 2375 |
begin
|
| 2376 |
{7 or 8 characters}
|
| 2377 |
if not (Length(Code) in [7, 8]) then
|
| 2378 |
RaiseStError(EStBarCodeError, stscInvalidEAN8CodeLen);
|
| 2379 |
try
|
| 2380 |
GetDigits(Code);
|
| 2381 |
except
|
| 2382 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2383 |
end;
|
| 2384 |
|
| 2385 |
GetCheckCharacters(Code, CheckC, CheckK);
|
| 2386 |
if (Length(Code) = 8) and (CheckC <> bcDigits[8]) then
|
| 2387 |
RaiseStError(EStBarCodeError, stscInvalidCheckCharacter);
|
| 2388 |
end;
|
| 2389 |
bcEAN_13 :
|
| 2390 |
begin
|
| 2391 |
{12 or 13 characters}
|
| 2392 |
if not (Length(Code) in [12, 13]) then
|
| 2393 |
RaiseStError(EStBarCodeError, stscInvalidEAN13CodeLen);
|
| 2394 |
try
|
| 2395 |
GetDigits(Code);
|
| 2396 |
except
|
| 2397 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2398 |
end;
|
| 2399 |
|
| 2400 |
GetCheckCharacters(Code, CheckC, CheckK);
|
| 2401 |
if (Length(Code) = 13) and (CheckC <> bcDigits[13]) then
|
| 2402 |
RaiseStError(EStBarCodeError, stscInvalidCheckCharacter);
|
| 2403 |
end;
|
| 2404 |
bcInterleaved2of5 :
|
| 2405 |
begin
|
| 2406 |
try
|
| 2407 |
GetDigits(Code);
|
| 2408 |
except
|
| 2409 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2410 |
end;
|
| 2411 |
end;
|
| 2412 |
bcCodabar :
|
| 2413 |
begin
|
| 2414 |
for I := 1 to Length(Code) do
|
| 2415 |
if not (Code[I] in ['0'..'9', '-', '$', ':', '/', '.', '+', 'a'..'d', 'A'..'D']) then
|
| 2416 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2417 |
end;
|
| 2418 |
bcCode11 :
|
| 2419 |
begin
|
| 2420 |
for I := 1 to Length(Code) do
|
| 2421 |
if not (Code[I] in ['0'..'9', '-']) then
|
| 2422 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2423 |
{test check characters}
|
| 2424 |
if not FAddCheckChar then begin
|
| 2425 |
GetCheckCharacters(Code, CheckC, CheckK);
|
| 2426 |
if (StrToInt(Code[Length(Code)-1]) <> CheckC) or
|
| 2427 |
(StrToInt(Code[Length(Code)]) <> CheckK) then
|
| 2428 |
RaiseStError(EStBarCodeError, stscInvalidCheckCharacter);
|
| 2429 |
end;
|
| 2430 |
end;
|
| 2431 |
bcCode39 :
|
| 2432 |
begin
|
| 2433 |
for I := 1 to Length(Code) do
|
| 2434 |
if not (Code[I] in ['0'..'9', 'A'..'Z', 'a'..'z',
|
| 2435 |
'-', '.', ' ', '$', '/', '+', '%', '*']) then
|
| 2436 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2437 |
{check for embedded guard character}
|
| 2438 |
for I := 2 to Length(Code)-1 do
|
| 2439 |
if Code[I] = '*' then
|
| 2440 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2441 |
end;
|
| 2442 |
bcCode93 :
|
| 2443 |
begin
|
| 2444 |
try
|
| 2445 |
GetCheckCharacters(Code, CheckC, CheckK);
|
| 2446 |
except
|
| 2447 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2448 |
end;
|
| 2449 |
end;
|
| 2450 |
bcCode128 :
|
| 2451 |
begin
|
| 2452 |
try
|
| 2453 |
GetCheckCharacters(Code, CheckC, CheckK);
|
| 2454 |
except
|
| 2455 |
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
| 2456 |
end;
|
| 2457 |
end;
|
| 2458 |
end;
|
| 2459 |
{check supplemental code}
|
| 2460 |
if FSupplementalCode > '' then
|
| 2461 |
if not (Length(FSupplementalCode) in [2, 5]) then
|
| 2462 |
RaiseStError(EStBarCodeError, stscInvalidSupCodeLen);
|
| 2463 |
except
|
| 2464 |
Result := False;
|
| 2465 |
if DisplayError then
|
| 2466 |
raise;
|
| 2467 |
end;
|
| 2468 |
end;
|
| 2469 |
|
| 2470 |
|
| 2471 |
end.
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