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2472 lines
68 KiB
ObjectPascal
2472 lines
68 KiB
ObjectPascal
// 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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{$IFDEF FPC}
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{$mode DELPHI}
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{$ENDIF}
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unit StBarC;
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interface
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uses
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{$IFDEF FPC}
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LCLType, LCLIntf, LMessages,
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{$ELSE}
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Windows, Messages,
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{$ENDIF}
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Classes, ClipBrd, Controls, Graphics, 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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FCode : String;
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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 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 AValue : 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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protected
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procedure Loaded; override;
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procedure Paint; override;
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public
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constructor Create(AOwner : TComponent); override;
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destructor Destroy; 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 Anchors;
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{$IFDEF FPC}
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property BorderSpacing;
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{$ENDIF}
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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 Height default 75;
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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 Width default 200;
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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 FCode
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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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'321111', { $}
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'112131', {/}
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'113121', {+}
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'211131', {%}
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'121221', {($)}
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'312111', {(%)}
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'311121', {(/)}
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'122211'); {(+)}
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Code93Map : array[#0..#127] of string =
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{Circle Code} {ASCII Code 93 }
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('%U', {NL (%)U }
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'$A', {SH ($)A }
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'$B', {SX ($)B }
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'$C', {EX ($)C }
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'$D', {ET ($)D }
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'$E', {EQ ($)E }
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'$F', {AK ($)F }
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'$G', {BL ($)G }
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'$H', {BS ($)H }
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'$I', {HT ($)I }
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'$J', {LF ($)J }
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'$K', {VT ($)K }
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'$L', {FF ($)L }
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'$M', {CR ($)M }
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'$N', {SO ($)N }
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'$O', {SI ($)O }
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'$P', {DL ($)P }
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'$Q', {D1 ($)Q }
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'$R', {D2 ($)R }
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'$S', {D3 ($)S }
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'$T', {D4 ($)T }
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'$U', {NK ($)U }
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'$V', {SY ($)V }
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'$W', {EB ($)W }
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'$X', {CN ($)X }
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'$Y', {EM ($)Y }
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'$Z', {SB ($)Z }
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'%A', {EC (%)A }
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'%B', {FS (%)B }
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'%C', {GS (%)C }
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'%D', {RS (%)D }
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'%E', {US (%)E }
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' ', {Space Space }
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'/A', {! (/)A }
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'/B', {" (/)B }
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'/C', {# (/)C }
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'$', { $ (/)D or $}
|
|
'%', {% (/)E or %}
|
|
'/F', {& (/)F }
|
|
'/G', {' (/)G }
|
|
'/H', {( (/)H }
|
|
'/I', {) (/)I }
|
|
'/J', {* (/)J }
|
|
' +', {+ (/)K or +}
|
|
'/L', {, (/)L }
|
|
'-', {- (/)M or -}
|
|
'.', {. (/)N or .}
|
|
'/', {/ (/)O or /}
|
|
'0', {0 (/)P or 0}
|
|
'1', {1 (/)Q or 1}
|
|
'2', {2 (/)R or 2}
|
|
'3', {3 (/)S or 3}
|
|
'4', {4 (/)T or 4}
|
|
'5', {5 (/)U or 5}
|
|
'6', {6 (/)V or 6}
|
|
'7', {7 (/)W or 7}
|
|
'8', {8 (/)X or 8}
|
|
'9', {9 (/)Y or 9}
|
|
'/Z', {: (/)Z }
|
|
'%F', {; (%)F }
|
|
'%G', {< (%)G }
|
|
'%H', {= (%)H }
|
|
'%I', {> (%)I }
|
|
'%J', {? (%)J }
|
|
'%V', { (%)V }
|
|
'A', {A A }
|
|
'B', {B B }
|
|
'C', {C C }
|
|
'D', {D D }
|
|
'E', {E E }
|
|
'F', {F F }
|
|
'G', {G G }
|
|
'H', {H H }
|
|
'I', {I I }
|
|
'J', {J J }
|
|
'K', {K K }
|
|
'L', {L L }
|
|
'M', {M M }
|
|
'N', {N N }
|
|
'O', {O O }
|
|
'P', {P P }
|
|
'Q', {Q Q }
|
|
'R', {R R }
|
|
'S', {S S }
|
|
'T', {T T }
|
|
'U', {U U }
|
|
'V', {V V }
|
|
'W', {W W }
|
|
'X', {X X }
|
|
'Y', {Y Y }
|
|
'Z', {Z Z }
|
|
'%K', {[ (%)K }
|
|
'%L', {\ (%)L }
|
|
'%M', {] (%)M }
|
|
'%N', {^ (%)N }
|
|
'%O', {_ (%)O }
|
|
'%W', {` (%)W }
|
|
'+A', {a (+)A }
|
|
'+B', {b (+)B }
|
|
'+C', {c (+)C }
|
|
'+D', {d (+)D }
|
|
'+E', {e (+)E }
|
|
'+F', {f (+)F }
|
|
'+G', {g (+)G }
|
|
'+H', {h (+)H }
|
|
'+I', {i (+)I }
|
|
'+J', {j (+)J }
|
|
'+K', {k (+)K }
|
|
'+L', {l (+)L }
|
|
'+M', {m (+)M }
|
|
'+N', {n (+)N }
|
|
'+O', {o (+)O }
|
|
'+P', {p (+)P }
|
|
'+Q', {q (+)Q }
|
|
'+R', {r (+)R }
|
|
'+S', {s (+)S }
|
|
'+T', {t (+)T }
|
|
'+U', {u (+)U }
|
|
'+V', {v (+)V }
|
|
'+W', {w (+)W }
|
|
'+X', {x (+)X }
|
|
'+Y', {y (+)Y }
|
|
'+Z', {z (+)Z }
|
|
'%P', {{ (%)P }
|
|
'%Q', {| (%)Q }
|
|
'%R', {}{ (%)R }
|
|
'%S', {~ (%)S }
|
|
'%T'); { DEL (%)T }
|
|
|
|
const
|
|
Code128 : array[0..106] of string =
|
|
{BSBSBS} {Value CodeA CodeB CodeC}
|
|
('212222', {0 SPACE SPACE 00}
|
|
'222122', {1 ! ! 01}
|
|
'222221', {2 " " 02}
|
|
'121223', {3 # # 03}
|
|
'121322', {4 $ $ 04}
|
|
'131222', {5 % % 05}
|
|
'122213', {6 & & 06}
|
|
'122312', {7 ' ' 07}
|
|
'132212', {8 ( ( 08}
|
|
'221213', {9 ) ) 09}
|
|
'221312', {10 * * 10}
|
|
'231212', {11 + + 11}
|
|
'112232', {12 , , 12}
|
|
'122132', {13 - - 13}
|
|
'122231', {14 . . 14}
|
|
'113222', {15 / / 15}
|
|
'123122', {16 0 0 16}
|
|
'123221', {17 1 1 17}
|
|
'223211', {18 2 2 18}
|
|
'221132', {19 3 3 19}
|
|
'221231', {20 4 4 20}
|
|
'213212', {21 5 5 21}
|
|
'223112', {22 6 6 22}
|
|
'312131', {23 7 7 23}
|
|
'311222', {24 8 8 24}
|
|
'321122', {25 9 9 25}
|
|
'321221', {26 : : 26}
|
|
'312212', {27 ; ; 27}
|
|
'322112', {28 < < 28}
|
|
'322211', {29 = = 29}
|
|
'212123', {30 > > 30}
|
|
'212321', {31 ? ? 31}
|
|
'232121', {32 @ @ 32}
|
|
'111323', {33 A A 33}
|
|
'131123', {34 B B 34}
|
|
'131321', {35 C C 35}
|
|
'112313', {36 D D 36}
|
|
'132113', {37 E E 37}
|
|
'132311', {38 F F 38}
|
|
'211313', {39 G G 39}
|
|
'231113', {40 H H 40}
|
|
'231311', {41 I I 41}
|
|
'112133', {42 J J 42}
|
|
'112331', {43 K K 43}
|
|
'132131', {44 L L 44}
|
|
'113123', {45 M M 45}
|
|
'113321', {46 N N 46}
|
|
'133121', {47 O O 47}
|
|
'313121', {48 P P 48}
|
|
'211331', {49 Q Q 49}
|
|
'231131', {50 R R 50}
|
|
'213113', {51 S S 51}
|
|
'213311', {52 T T 52}
|
|
'213131', {53 U U 53}
|
|
'311123', {54 V V 54}
|
|
'311321', {55 W W 55}
|
|
'331121', {56 X X 56}
|
|
'312113', {57 Y Y 57}
|
|
'312311', {58 Z Z 58}
|
|
'332111', {59 [ [ 59}
|
|
'314111', {60 \ \ 60}
|
|
'221411', {61 ] ] 61}
|
|
'431111', {62 ^ ^ 62}
|
|
'111224', {63 _ _ 63}
|
|
'111422', {64 NU ` 64}
|
|
'121124', {65 SH a 65}
|
|
'121421', {66 SX b 66}
|
|
'141122', {67 EX c 67}
|
|
'141221', {68 ET d 68}
|
|
'112214', {69 EQ e 69}
|
|
'112412', {70 AK f 70}
|
|
'122114', {71 BL g 71}
|
|
'122411', {72 BS h 72}
|
|
'142112', {73 HT i 73}
|
|
'142211', {74 LF j 74}
|
|
'241211', {75 VT k 75}
|
|
'221114', {76 FF l 76}
|
|
'413111', {77 CR m 77}
|
|
'241112', {78 SO n 78}
|
|
'134111', {79 SI o 79}
|
|
'111242', {80 DL p 80}
|
|
'121142', {81 D1 q 81}
|
|
'121241', {82 D2 r 82}
|
|
'114212', {83 D3 s 83}
|
|
'124112', {84 D4 t 84}
|
|
'124211', {85 NK u 85}
|
|
'411212', {86 SY v 86}
|
|
'421112', {87 EB w 87}
|
|
'421211', {88 CN x 88}
|
|
'212141', {89 EM y 89}
|
|
'214121', {90 SB z 90}
|
|
'412121', (*91 EC { 91*)
|
|
'111143', {92 FS 92}
|
|
'111341', (*93 GS } 93*)
|
|
'131141', {94 RS ~ 94}
|
|
'114113', {95 US DEL 95}
|
|
'114311', {96 FNC 3 FNC 3 96} {use #132}
|
|
'411113', {97 FNC 2 FNC 2 97} {use #131}
|
|
'411311', {98 SHIFT SHIFT 98} {use #130}
|
|
'113141', {99 CODE C CODE C 99} {use #135}
|
|
'114131', {100 CODE B FNC 4 CODE B} {use #134}
|
|
'311141', {101 FNC 4 CODE A CODE A} {use #133}
|
|
'411131', {102 FNC 1 FNC 1 FNC 1 } {use #130}
|
|
'211412', {103 CODE A} {use #136}
|
|
'211214', {104 CODE B} {use #137}
|
|
'211232', {105 CODE C} {use #138}
|
|
'2331112');{106 STOP} {use #139}
|
|
|
|
|
|
{*** helper routines ***}
|
|
|
|
function RectWidth(const R : TRect) : Integer;
|
|
begin
|
|
Result := R.Right-R.Left;
|
|
end;
|
|
|
|
function RectHeight(const R : TRect) : Integer;
|
|
begin
|
|
Result := R.Bottom-R.Top;
|
|
end;
|
|
|
|
|
|
{*** TStBarCodeInfo ***}
|
|
|
|
procedure TStBarCodeInfo.Add(ModuleCount : Integer; BarKind : TStBarKindSet);
|
|
var
|
|
Bar : TStBarData;
|
|
begin
|
|
Bar := TStBarData.Create;
|
|
Bar.Modules := ModuleCount;
|
|
Bar.Kind := BarKind;
|
|
FBars.Add(Bar);
|
|
end;
|
|
|
|
procedure TStBarCodeInfo.Clear;
|
|
var
|
|
I : Integer;
|
|
begin
|
|
for I := 0 to FBars.Count-1 do
|
|
TStBarData(FBars[I]).Free;
|
|
FBars.Clear;
|
|
end;
|
|
|
|
constructor TStBarCodeInfo.Create;
|
|
begin
|
|
inherited Create;
|
|
|
|
FBars := TList.Create;
|
|
end;
|
|
|
|
destructor TStBarCodeInfo.Destroy;
|
|
begin
|
|
Clear;
|
|
FBars.Free;
|
|
FBars := nil;
|
|
|
|
inherited Destroy;
|
|
end;
|
|
|
|
function TStBarCodeInfo.GetBars(Index : Integer) : TStBarData;
|
|
begin
|
|
Result := FBars[Index];
|
|
end;
|
|
|
|
function TStBarCodeInfo.GetCount : Integer;
|
|
begin
|
|
Result := FBars.Count;
|
|
end;
|
|
|
|
|
|
{*** TStBarCode ***}
|
|
|
|
procedure TStBarCode.CalcBarCode;
|
|
var
|
|
I, J, X : Integer;
|
|
CheckC : Integer;
|
|
CheckK : Integer;
|
|
CSP : string;
|
|
C : string;
|
|
C1, C2 : string;
|
|
|
|
procedure AddCode(const S : string; AKind : TStBarKindSet);
|
|
var
|
|
I : Integer;
|
|
begin
|
|
for I := 1 to Length(S) do
|
|
if S[I] = '0' then
|
|
bcBarInfo.Add(1, AKind - [bkBar, bkThreeQuarterBar, bkHalfBar] + [bkSpace])
|
|
else
|
|
bcBarInfo.Add(StrToInt(S[I]), AKind);
|
|
end;
|
|
|
|
procedure AddECode(const Parity : string);
|
|
var
|
|
I : Integer;
|
|
begin
|
|
for I := 1 to Length(Parity) do begin
|
|
if Parity[I] = 'E' then
|
|
AddCode(UPC_E_EvenParity[bcDigits[I]], [bkBar])
|
|
else
|
|
AddCode(UPC_E_OddParity[bcDigits[I]], [bkBar]);
|
|
end;
|
|
end;
|
|
|
|
procedure AddSupCode(const Parity : string);
|
|
var
|
|
I : Integer;
|
|
begin
|
|
for I := 1 to Length(Parity) do begin
|
|
if Parity[I] = 'E' then
|
|
AddCode(UPC_E_EvenParity[bcDigits[I]], [bkThreeQuarterBar, bkSupplement])
|
|
else
|
|
AddCode(UPC_E_OddParity[bcDigits[I]], [bkThreeQuarterBar, bkSupplement]);
|
|
if I < Length(Parity) then
|
|
AddCode('01', [bkThreeQuarterBar, bkSupplement]);
|
|
end;
|
|
end;
|
|
|
|
procedure AddCodeModules(const S : string);
|
|
var
|
|
K : Integer;
|
|
begin
|
|
for K := 1 to Length(S) do begin
|
|
if Odd(K) then
|
|
bcBarInfo.Add(StrToInt(S[K]), [bkBar])
|
|
else
|
|
bcBarInfo.Add(StrToInt(S[K]), [bkSpace]);
|
|
end;
|
|
end;
|
|
|
|
procedure AddCodeWideNarrow(const S : string);
|
|
var
|
|
K : Integer;
|
|
begin
|
|
for K := 1 to Length(S) do begin
|
|
case S[K] of
|
|
'0' : if Odd(K) then
|
|
bcBarInfo.Add(1, [bkBar])
|
|
else
|
|
bcBarInfo.Add(1, [bkSpace]);
|
|
'1' : if Odd(K) then
|
|
bcBarInfo.Add(FBarNarrowToWideRatio, [bkBar])
|
|
else
|
|
bcBarInfo.Add(FBarNarrowToWideRatio, [bkSpace]);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
begin
|
|
if csLoading in ComponentState then
|
|
Exit;
|
|
|
|
bcBarInfo.Clear;
|
|
if Code = '' then
|
|
Exit;
|
|
|
|
{get copy of code}
|
|
C := Code;
|
|
|
|
{get digits}
|
|
case FBarCodeType of
|
|
bcUPC_A, bcUPC_E, bcEAN_8, bcEAN_13, bcCodabar, bcCode11, bcCode93 :
|
|
begin
|
|
bcDigitCount := GetDigits(C);
|
|
end;
|
|
bcInterleaved2of5 :
|
|
begin
|
|
{adjust odd length code}
|
|
if FAddCheckChar then begin
|
|
if not Odd(Length(C)) then
|
|
C := '0' + C;
|
|
end else begin
|
|
if Odd(Length(C)) then
|
|
C := '0' + C;
|
|
end;
|
|
bcDigitCount := GetDigits(C);
|
|
end;
|
|
bcCode39 :
|
|
begin
|
|
{add guard characters}
|
|
if C[1] <> '*' then
|
|
C := '*' + C;
|
|
if C[Length(C)] <> '*' then
|
|
C := C + '*';
|
|
bcDigitCount := GetDigits(C);
|
|
end;
|
|
bcCode128 :
|
|
begin
|
|
{add start code}
|
|
if not (C[1] in [#136, #137, #138]) then
|
|
case FCode128Subset of
|
|
csCodeA : C := #136 + C;
|
|
csCodeB : C := #137 + C;
|
|
csCodeC : C := #138 + C;
|
|
end;
|
|
bcDigitCount := GetDigits(C);
|
|
end;
|
|
end;
|
|
|
|
case FBarCodeType of
|
|
bcUPC_A :
|
|
begin
|
|
{get check digit}
|
|
if Length(C) = 11 then
|
|
GetCheckCharacters(C, CheckC, CheckK)
|
|
else
|
|
CheckC := bcDigits[12];
|
|
|
|
{encode left hand guard bars}
|
|
AddCode('101', [bkGuard, bkBar]);
|
|
|
|
{first six characters as left hand characters}
|
|
for I := 1 to 6 do
|
|
AddCode(UPC_A_LeftHand[bcDigits[I]], [bkBar]);
|
|
|
|
{center guard pattern}
|
|
AddCode('01010', [bkGuard, bkBar]);
|
|
|
|
{last five data characters as right hand characters}
|
|
for I := 7 to 11 do
|
|
AddCode(UPC_A_RightHand[bcDigits[I]], [bkBar]);
|
|
|
|
{check character}
|
|
AddCode(UPC_A_RightHand[CheckC], [bkBar]);
|
|
|
|
{encode right hand guard bars}
|
|
AddCode('101', [bkGuard, bkBar]);
|
|
end;
|
|
bcUPC_E :
|
|
begin
|
|
{encode left hand guard bars, 101}
|
|
AddCode('101', [bkGuard, bkBar]);
|
|
GetCheckCharacters(C, CheckC, CheckK);
|
|
case CheckC of
|
|
0 : AddECode('EEEOOO');
|
|
1 : AddECode('EEOEOO');
|
|
2 : AddECode('EEOOEO');
|
|
3 : AddECode('EEOOOE');
|
|
4 : AddECode('EOEEOO');
|
|
5 : AddECode('EOOEEO');
|
|
6 : AddECode('EOOOEE');
|
|
7 : AddECode('EOEOEO');
|
|
8 : AddECode('EOEOOE');
|
|
9 : AddECode('EOOEOE');
|
|
end;
|
|
{encode right hand guard bars}
|
|
AddCode('010101', [bkGuard, bkBar]);
|
|
end;
|
|
bcEAN_8 :
|
|
begin
|
|
{get check digit}
|
|
if Length(C) = 7 then
|
|
GetCheckCharacters(C, CheckC, CheckK)
|
|
else
|
|
CheckC := bcDigits[8];
|
|
|
|
{encode left hand guard bars}
|
|
AddCode('101', [bkGuard, bkBar]);
|
|
{two flag two data characters, encoded as left hand A characters}
|
|
for I := 1 to 4 do
|
|
AddCode(EAN_LeftHandA[bcDigits[I]], [bkBar]);
|
|
{encode center guard bars}
|
|
AddCode('01010', [bkGuard, bkBar]);
|
|
{last three data characters, encoded as right hand characters}
|
|
for I := 5 to 7 do
|
|
AddCode(UPC_A_RightHand[bcDigits[I]], [bkBar]);
|
|
{check character}
|
|
AddCode(UPC_A_RightHand[CheckC], [bkBar]);
|
|
{encode right hand guard bars}
|
|
AddCode('101', [bkGuard, bkBar]);
|
|
end;
|
|
bcEAN_13 :
|
|
begin
|
|
{get check digit}
|
|
if Length(C) = 12 then
|
|
GetCheckCharacters(C, CheckC, CheckK)
|
|
else
|
|
CheckC := bcDigits[13];
|
|
|
|
{determine which left hand table to use based on first flag character}
|
|
{EAN refers to this as the 13th digit - counting from the right}
|
|
case bcDigits[1] of
|
|
{ 12345}
|
|
0 : CSP := 'AAAAAA';
|
|
1 : CSP := 'AABABB';
|
|
2 : CSP := 'AABBAB';
|
|
3 : CSP := 'AABBBA';
|
|
4 : CSP := 'ABAABB';
|
|
5 : CSP := 'ABBAAB';
|
|
6 : CSP := 'ABBBAA';
|
|
7 : CSP := 'ABABAB';
|
|
8 : CSP := 'ABABBA';
|
|
9 : CSP := 'ABBABA';
|
|
end;
|
|
{encode left hand guard bars}
|
|
AddCode('101', [bkGuard, bkBar]);
|
|
{start with second flag character and next five data characters}
|
|
for I := 2 to 7 do
|
|
if CSP[I-1] = 'A' then
|
|
AddCode(EAN_LeftHandA[bcDigits[I]], [bkBar])
|
|
else
|
|
AddCode(EAN_LeftHandB[bcDigits[I]], [bkBar]);
|
|
{encode center guard bars}
|
|
AddCode('01010', [bkGuard, bkBar]);
|
|
{encode last five data characters}
|
|
for I := 8 to 12 do
|
|
AddCode(UPC_A_RightHand[bcDigits[I]], [bkBar]);
|
|
{check character}
|
|
AddCode(UPC_A_RightHand[CheckC], [bkBar]);
|
|
{encode right hand guard bars}
|
|
AddCode('101', [bkGuard, bkBar]);
|
|
end;
|
|
bcInterleaved2of5 :
|
|
begin
|
|
{add check character}
|
|
if FAddCheckChar then begin
|
|
{get check digit}
|
|
GetCheckCharacters(C, CheckC, CheckK);
|
|
Inc(bcDigitCount);
|
|
bcDigits[bcDigitCount] := CheckC;
|
|
end;
|
|
|
|
{encode left guard pattern}
|
|
bcBarInfo.Add(1, [bkGuard, bkBar]);
|
|
bcBarInfo.Add(1, [bkGuard, bkSpace]);
|
|
bcBarInfo.Add(1, [bkGuard, bkBar]);
|
|
bcBarInfo.Add(1, [bkGuard, bkSpace]);
|
|
|
|
I := 1;
|
|
while I < bcDigitCount do begin
|
|
{take two characters at a time - odd as bars, even as spaces}
|
|
C1 := Interleaved_2of5[bcDigits[I]];
|
|
C2 := Interleaved_2of5[bcDigits[I+1]];
|
|
{interleave data}
|
|
for J := 1 to 5 do begin
|
|
if C1[J] = '1' then
|
|
bcBarInfo.Add(FBarNarrowToWideRatio, [bkBar]) {wide bar}
|
|
else
|
|
bcBarInfo.Add(1, [bkBar]); {narrow bar}
|
|
if C2[J] = '1' then
|
|
bcBarInfo.Add(FBarNarrowToWideRatio, [bkSpace]){wide space}
|
|
else
|
|
bcBarInfo.Add(1, [bkSpace]); {narrow space}
|
|
end;
|
|
Inc(I, 2);
|
|
end;
|
|
|
|
{encode right guard pattern}
|
|
bcBarInfo.Add(FBarNarrowToWideRatio,
|
|
[bkGuard, bkBar]); {double-width bar}
|
|
bcBarInfo.Add(1, [bkGuard, bkSpace]);
|
|
bcBarInfo.Add(1, [bkGuard, bkBar]);
|
|
end;
|
|
bcCodabar :
|
|
begin
|
|
for I := 1 to bcDigitCount do begin
|
|
AddCodeWideNarrow(Codabar[bcDigits[I]]);
|
|
if I < bcDigitCount then
|
|
bcBarInfo.Add(1, [bkSpace]);
|
|
end;
|
|
end;
|
|
bcCode11 :
|
|
begin
|
|
AddCodeWideNarrow(Code11[11]); {start}
|
|
bcBarInfo.Add(1, [bkSpace]);
|
|
{add check characters}
|
|
if FAddCheckChar then begin
|
|
{get check digits}
|
|
GetCheckCharacters(C, CheckC, CheckK);
|
|
Inc(bcDigitCount);
|
|
bcDigits[bcDigitCount] := CheckC;
|
|
Inc(bcDigitCount);
|
|
bcDigits[bcDigitCount] := CheckK;
|
|
end;
|
|
|
|
for I := 1 to bcDigitCount do begin
|
|
AddCodeWideNarrow(Code11[bcDigits[I]]);
|
|
bcBarInfo.Add(1, [bkSpace]);
|
|
end;
|
|
AddCodeWideNarrow(Code11[11]); {stop}
|
|
end;
|
|
bcCode39 :
|
|
begin
|
|
for I := 1 to bcDigitCount do begin
|
|
C1 := Code39[bcDigits[I]];
|
|
for J := 1 to Length(C1) do begin
|
|
case C1[J] of
|
|
'0' : if Odd(J) then
|
|
bcBarInfo.Add(1, [bkBar])
|
|
else
|
|
bcBarInfo.Add(1, [bkSpace]);
|
|
'1' : if Odd(J) then
|
|
bcBarInfo.Add(2, [bkBar])
|
|
else
|
|
bcBarInfo.Add(2, [bkSpace]);
|
|
end;
|
|
end;
|
|
bcBarInfo.Add(1, [bkSpace]);
|
|
end;
|
|
end;
|
|
bcCode93 :
|
|
begin;
|
|
{start character}
|
|
AddCodeModules('111141');
|
|
{add check characters}
|
|
if FAddCheckChar then begin
|
|
{get check digits}
|
|
GetCheckCharacters(C, CheckC, CheckK);
|
|
Inc(bcDigitCount);
|
|
bcDigits[bcDigitCount] := CheckC;
|
|
Inc(bcDigitCount);
|
|
bcDigits[bcDigitCount] := CheckK;
|
|
end;
|
|
for I := 1 to bcDigitCount do
|
|
AddCodeModules(Code93[bcDigits[I]]);
|
|
{stop character}
|
|
AddCodeModules('1111411');
|
|
end;
|
|
bcCode128 :
|
|
begin
|
|
{add check character}
|
|
if FAddCheckChar then begin
|
|
GetCheckCharacters(C, CheckC, CheckK);
|
|
Inc(bcDigitCount);
|
|
bcDigits[bcDigitCount] := CheckC;
|
|
end;
|
|
{add stop code}
|
|
Inc(bcDigitCount);
|
|
bcDigits[bcDigitCount] := 106;
|
|
for I := 1 to bcDigitCount do
|
|
AddCodeModules(Code128[bcDigits[I]]);
|
|
end;
|
|
end;
|
|
|
|
if FBarCodeType in [bcUPC_A, bcUPC_E, bcEAN_8, bcEAN_13] then begin
|
|
{add supplemental encodings if requested}
|
|
if Length(FSupplementalCode) in [2, 5] then begin
|
|
{get digits}
|
|
bcDigitCount := GetDigits(FSupplementalCode);
|
|
{7 spaces after primary code - 0000000}
|
|
AddCode('0000000', [bkThreeQuarterBar, bkBlankSpace]);
|
|
{encode left hand guard bars, 1011}
|
|
AddCode('1011', [bkThreeQuarterBar, bkSupplement]);
|
|
|
|
if bcDigitCount = 2 then begin
|
|
{two digit supplement}
|
|
{determine parity table to use for each of the two characters}
|
|
X := bcDigits[1] * 10 + bcDigits[2];
|
|
case X mod 4 of
|
|
0 : AddSupCode('OO');
|
|
1 : AddSupCode('OE');
|
|
2 : AddSupCode('EO');
|
|
3 : AddSupCode('EE');
|
|
end;
|
|
end else begin
|
|
{five digit supplement}
|
|
{determine the parity pattern to use for each of the five}
|
|
X := ((bcDigits[1] + bcDigits[3] + bcDigits[5])*3 + (bcDigits[2] + bcDigits[4])*9) mod 10;
|
|
case X of
|
|
0 : AddSupCode('EEOOO');
|
|
1 : AddSupCode('EOEOO');
|
|
2 : AddSupCode('EOOEO');
|
|
3 : AddSupCode('EOOOE');
|
|
4 : AddSupCode('OEEOO');
|
|
5 : AddSupCode('OOEEO');
|
|
6 : AddSupCode('OOOEE');
|
|
7 : AddSupCode('OEOEO');
|
|
8 : AddSupCode('OEOOE');
|
|
9 : AddSupCode('OOEOE');
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.CalcBarCodeWidth;
|
|
var
|
|
I : Integer;
|
|
begin
|
|
bcNormalWidth := 0;
|
|
bcSpaceWidth := 0;
|
|
bcSupplementWidth := 0;
|
|
for I := 0 to bcBarInfo.Count-1 do begin
|
|
if bkSpace in bcBarInfo[I].Kind then begin
|
|
if bkBlankSpace in bcBarInfo[I].Kind then
|
|
Inc(bcSpaceWidth, bcSpaceModWidth*bcBarInfo[I].Modules)
|
|
else if bkSupplement in bcBarInfo[I].Kind then
|
|
Inc(bcSupplementWidth, bcSpaceModWidth*bcBarInfo[I].Modules)
|
|
else
|
|
Inc(bcNormalWidth, bcSpaceModWidth*bcBarInfo[I].Modules)
|
|
end else begin
|
|
if bkBlankSpace in bcBarInfo[I].Kind then
|
|
Inc(bcSpaceWidth, bcBarModWidth*bcBarInfo[I].Modules)
|
|
else if bkSupplement in bcBarInfo[I].Kind then
|
|
Inc(bcSupplementWidth, bcBarModWidth*bcBarInfo[I].Modules)
|
|
else
|
|
Inc(bcNormalWidth, bcBarModWidth*bcBarInfo[I].Modules)
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.CopyToClipboard;
|
|
var
|
|
{$IFNDEF FPC}
|
|
MetaFile : TMetaFile;
|
|
MetaFileCanvas : TMetaFileCanvas;
|
|
{$ENDIF}
|
|
Bitmap : TBitmap;
|
|
begin
|
|
Clipboard.Clear;
|
|
Clipboard.Open;
|
|
try
|
|
{bitmap}
|
|
Bitmap := TBitmap.Create;
|
|
try
|
|
Bitmap.Width := ClientWidth;
|
|
Bitmap.Height := ClientHeight;
|
|
PaintToDC(Bitmap.Canvas.Handle, ClientRect);
|
|
Clipboard.Assign(Bitmap);
|
|
|
|
{$IFNDEF FPC}
|
|
{metafile}
|
|
MetaFile := TMetaFile.Create;
|
|
try
|
|
MetaFileCanvas := TMetaFileCanvas.Create(MetaFile, 0);
|
|
try
|
|
MetaFile.Enhanced := True;
|
|
MetaFile.Width := ClientWidth;
|
|
MetaFile.Height := ClientHeight;
|
|
MetaFileCanvas.Draw(0, 0, Bitmap);
|
|
finally
|
|
MetaFileCanvas.Free;
|
|
end;
|
|
Clipboard.Assign(MetaFile);
|
|
finally
|
|
MetaFile.Free;
|
|
end;
|
|
{$ENDIF}
|
|
|
|
finally
|
|
Bitmap.Free;
|
|
end
|
|
finally
|
|
Clipboard.Close;
|
|
end;
|
|
end;
|
|
|
|
constructor TStBarCode.Create(AOwner : TComponent);
|
|
begin
|
|
inherited Create(AOwner);
|
|
|
|
bcBarInfo := TStBarCodeInfo.Create;
|
|
|
|
{defaults}
|
|
Color := clWhite;
|
|
SetInitialBounds(0, 0, 200, 75);
|
|
|
|
FAddCheckChar := True;
|
|
FBarColor := clBlack;
|
|
FBarToSpaceRatio := 1;
|
|
FBarNarrowToWideRatio := bcDefNarrowToWideRatio;
|
|
FBarWidth := 12;
|
|
FShowCode := True;
|
|
FShowGuardChars := False;
|
|
FTallGuardBars := False;
|
|
FExtendedSyntax := False;
|
|
|
|
FCode := '123456789012';
|
|
CalcBarCode;
|
|
end;
|
|
|
|
destructor TStBarCode.Destroy;
|
|
begin
|
|
bcBarInfo.Free;
|
|
bcBarInfo := nil;
|
|
|
|
inherited Destroy;
|
|
end;
|
|
|
|
function TStBarCode.DrawBar(XPos, YPos, AWidth, AHeight : Integer) : Integer;
|
|
begin
|
|
Canvas.Rectangle(XPos, YPos, XPos+AWidth, YPos+AHeight);
|
|
Result := XPos + AWidth;
|
|
end;
|
|
|
|
procedure TStBarCode.DrawBarCode(const R : TRect);
|
|
var
|
|
I, X, Y : Integer;
|
|
CheckC : Integer;
|
|
CheckK : Integer;
|
|
TH, GA, TQ, BB : Integer;
|
|
BarCodeHeight : Integer;
|
|
BarCodeWidth : Integer;
|
|
PixelsPerInchX : Integer;
|
|
TR : TRect;
|
|
SmallestWidth : Double;
|
|
C : string;
|
|
Buf : array[0..512] of Char;
|
|
begin
|
|
Canvas.Brush.Color := FBarColor;
|
|
Canvas.Brush.Style := bsSolid;
|
|
|
|
PixelsPerInchX := GetDeviceCaps(Canvas.Handle, LOGPIXELSX);
|
|
|
|
{determine narrowest line width}
|
|
SmallestWidth := SmallestLineWidth(PixelsPerInchX);
|
|
|
|
{find sizes for the BarCode elements}
|
|
bcBarModWidth := Round(FBarWidth/1000 * PixelsPerInchX);
|
|
if bcBarModWidth < FBarToSpaceRatio then
|
|
bcBarModWidth := Round(BarToSpaceRatio);
|
|
if bcBarModWidth < SmallestWidth then
|
|
bcBarModWidth := Round(SmallestWidth);
|
|
bcSpaceModWidth := Round(bcBarModWidth / FBarToSpaceRatio);
|
|
|
|
{total width of BarCode and position within rect}
|
|
CalcBarCodeWidth;
|
|
BarCodeWidth := bcNormalWidth + bcSpaceWidth + bcSupplementWidth;
|
|
BarCodeHeight := RectHeight(R);
|
|
if BarCodeWidth < RectWidth(R) then
|
|
X := R.Left + (RectWidth(R)-BarCodeWidth) div 2
|
|
else
|
|
X := R.Left;
|
|
Y := R.Top;
|
|
|
|
{get text height}
|
|
TH := Canvas.TextHeight('Yg0');
|
|
|
|
{guard bar adjustment}
|
|
GA := (BarCodeHeight*10) div 100; {10% of bar height}
|
|
{but, not more than 1/4 of the font height}
|
|
if FShowCode and (GA > TH div 4) then
|
|
GA := TH div 4;
|
|
|
|
{three quarter height bar adjustment}
|
|
TQ := BarCodeHeight div 4;
|
|
|
|
{draw the text}
|
|
if FShowCode and (Code > '') then begin
|
|
C := Code;
|
|
{fill out invalid codes}
|
|
case FBarCodeType of
|
|
bcUPC_A :
|
|
begin
|
|
C := Copy(C, 1, 12); {truncate}
|
|
if Length(C) = 11 then begin
|
|
GetCheckCharacters(C, CheckC, CheckK);
|
|
C := C + IntToStr(CheckC);
|
|
end;
|
|
while Length(C) < 12 do
|
|
C := C + '0';
|
|
end;
|
|
bcUPC_E :
|
|
begin
|
|
C := Copy(C, 1, 6); {truncate}
|
|
while Length(C) < 6 do
|
|
C := C + '0';
|
|
end;
|
|
bcEAN_8 :
|
|
begin
|
|
C := Copy(C, 1, 8); {truncate}
|
|
if Length(C) = 7 then begin
|
|
GetCheckCharacters(C, CheckC, CheckK);
|
|
C := C + IntToStr(CheckC);
|
|
end;
|
|
while Length(C) < 8 do
|
|
C := C + '0';
|
|
end;
|
|
bcEAN_13 :
|
|
begin
|
|
C := Copy(C, 1, 13); {truncate}
|
|
if Length(C) = 12 then begin
|
|
GetCheckCharacters(C, CheckC, CheckK);
|
|
C := C + IntToStr(CheckC);
|
|
end;
|
|
while Length(C) < 13 do
|
|
C := C + '0';
|
|
end;
|
|
bcInterleaved2of5 :
|
|
begin
|
|
if Odd(Length(C)) then
|
|
C := '0' + C;
|
|
end;
|
|
bcCodabar :
|
|
begin
|
|
if not FShowGuardChars then
|
|
{strip leading and trailing characters}
|
|
C := Copy(C, 2, Length(C)-2);
|
|
end;
|
|
bcCode11 :
|
|
begin
|
|
end;
|
|
bcCode39 :
|
|
begin
|
|
{add guard characters}
|
|
if C[1] <> '*' then
|
|
C := '*' + C;
|
|
if C[Length(C)] <> '*' then
|
|
C := C + '*';
|
|
if not FShowGuardChars then
|
|
{strip leading and trailing characters}
|
|
C := Copy(C, 2, Length(C)-2);
|
|
end;
|
|
bcCode93 :
|
|
begin
|
|
{remove non-printable characters}
|
|
for I := 1 to Length(C) do
|
|
if C[I] < ' ' then
|
|
C[I] := ' ';
|
|
end;
|
|
bcCode128 :
|
|
begin
|
|
{remove non-printable characters}
|
|
I := 1;
|
|
while I <= Length (C) do begin
|
|
if C[I] < ' ' then
|
|
C[I] := ' ';
|
|
if (i < Length (C)) and (ExtendedSyntax) then begin
|
|
if (C[I] = '\') and
|
|
(C[I + 1] in ['A', 'B', 'C', 'a', 'b', 'c']) then begin
|
|
C[I] := ' ';
|
|
C[I + 1] := ' ';
|
|
Inc (I);
|
|
end else if (C[I] = '\') and (C[I+1] = '\') then begin
|
|
C[I] := ' ';
|
|
Inc (I);
|
|
end;
|
|
end;
|
|
Inc (I);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
Dec(BarCodeHeight, TH + (TH div 4));
|
|
Canvas.Brush.Style := bsClear;
|
|
{guard bar adjustment - again}
|
|
GA := (BarCodeHeight*10) div 100; {10% of bar height}
|
|
{but, not more than 1/4 of the font height}
|
|
if FShowCode and (GA > TH div 4) then
|
|
GA := TH div 4;
|
|
{three quarter height bar adjustment}
|
|
TQ := BarCodeHeight div 4;
|
|
|
|
if FBarCodeType = bcUPC_A then begin
|
|
{print first and last character to sides of symbol}
|
|
TR.Top := Y;
|
|
TR.Bottom := TR.Top + BarCodeHeight;
|
|
{left hand character}
|
|
Buf[0] := C[1];
|
|
TR.Right := X;
|
|
TR.Left := X - 2 * Canvas.TextWidth(C[1]);
|
|
DrawText(Canvas.Handle, @Buf, 1, TR, DT_BOTTOM or DT_CENTER or DT_SINGLELINE);
|
|
{remove character from code to print}
|
|
C := Copy(C, 2, Length(C)-1);
|
|
|
|
{right hand character - if no supplemental code}
|
|
if FSupplementalCode = '' then begin
|
|
Buf[0] := C[Length(C)];
|
|
TR.Left := X + bcNormalWidth;
|
|
TR.Right := X + bcNormalWidth + 2 * Canvas.TextWidth(C[Length(C)]);
|
|
DrawText(Canvas.Handle, @Buf, 1, TR, DT_BOTTOM or DT_CENTER or DT_SINGLELINE);
|
|
{remove character from code to print}
|
|
C := Copy(C, 1, Length(C)-1);
|
|
end;
|
|
end;
|
|
|
|
if FSupplementalCode > '' then begin
|
|
{draw supplemental code above the code}
|
|
TR.Top := Y + TQ - TH;
|
|
TR.Bottom := Y + BarCodeHeight;
|
|
TR.Left := X + bcNormalWidth + bcSpaceWidth;
|
|
TR.Right := TR.Left + bcSupplementWidth;
|
|
StrPLCopy(Buf, FSupplementalCode, Length(Buf)-1);
|
|
DrawText(Canvas.Handle, @Buf, StrLen(Buf), TR, DT_VCENTER or DT_CENTER);
|
|
end;
|
|
|
|
TR := R;
|
|
TR.Top := R.Top + BarCodeHeight + (TH div 4);
|
|
TR.Left := X;
|
|
TR.Right := TR.Left + bcNormalWidth;
|
|
Canvas.Brush.Style := bsClear;
|
|
StrPLCopy(Buf, C, Length(Buf)-1);
|
|
DrawText(Canvas.Handle, @Buf, StrLen(Buf), TR, DT_VCENTER or DT_CENTER);
|
|
Canvas.Brush.Style := bsSolid;
|
|
Canvas.Brush.Color := FBarColor;
|
|
end;
|
|
|
|
if (FBarCodeType = bcInterleaved2of5) and FBearerBars then begin
|
|
BB := 3 * bcBarModWidth;
|
|
{reduce height to allow for bearer bars}
|
|
Dec(BarCodeHeight, BB * 2);
|
|
{draw the bearer bars}
|
|
Canvas.Rectangle(X-bcBarModWidth, Y,
|
|
X+BarCodeWidth+bcBarModWidth, Y+BB);
|
|
Canvas.Rectangle(X-bcBarModWidth, Y+BarCodeHeight+BB,
|
|
X+BarCodeWidth+bcBarModWidth, Y+BarCodeHeight+BB*2);
|
|
{adjust top of BarCode}
|
|
Inc(Y, BB);
|
|
end;
|
|
|
|
{draw the bar code}
|
|
for I := 0 to bcBarInfo.Count-1 do begin
|
|
if bkSpace in bcBarInfo[I].Kind then
|
|
Inc(X, bcSpaceModWidth*bcBarInfo[I].Modules)
|
|
else if (bkGuard in bcBarInfo[I].Kind) and FTallGuardBars then begin
|
|
if bcGuardBarAbove and bcGuardBarBelow then
|
|
X := DrawBar(X, Y-GA, bcBarModWidth*bcBarInfo[I].Modules, BarCodeHeight+2*GA)
|
|
else if bcGuardBarAbove then
|
|
X := DrawBar(X, Y-GA, bcBarModWidth*bcBarInfo[I].Modules, BarCodeHeight+GA)
|
|
else if bcGuardBarBelow then
|
|
X := DrawBar(X, Y, bcBarModWidth*bcBarInfo[I].Modules, BarCodeHeight+2*GA)
|
|
end else if (bkBar in bcBarInfo[I].Kind) or (bkGuard in bcBarInfo[I].Kind) then
|
|
X := DrawBar(X, Y, bcBarModWidth*bcBarInfo[I].Modules, BarCodeHeight)
|
|
else if (bkThreeQuarterBar in bcBarInfo[I].Kind) then
|
|
X := DrawBar(X, Y+TQ, bcBarModWidth*bcBarInfo[I].Modules, BarCodeHeight-TQ);
|
|
end;
|
|
end;
|
|
|
|
{added}
|
|
function TStBarCode.GetBarCodeWidth(ACanvas : TCanvas) : Double;
|
|
var
|
|
PixelsPerInchX : Integer;
|
|
SmallestWidth : Double;
|
|
begin
|
|
PixelsPerInchX := GetDeviceCaps(ACanvas.Handle, LOGPIXELSX);
|
|
|
|
{determine narrowest line width}
|
|
SmallestWidth := SmallestLineWidth(PixelsPerInchX);
|
|
|
|
{find sizes for the BarCode elements}
|
|
bcBarModWidth := Round(FBarWidth/1000 * PixelsPerInchX);
|
|
if bcBarModWidth < FBarToSpaceRatio then
|
|
bcBarModWidth := Round(BarToSpaceRatio);
|
|
if bcBarModWidth < SmallestWidth then
|
|
bcBarModWidth := Round(SmallestWidth);
|
|
bcSpaceModWidth := Round(bcBarModWidth / FBarToSpaceRatio);
|
|
|
|
CalcBarcodeWidth;
|
|
|
|
{width in pixels (not counting text printed to left or right of code)}
|
|
Result := bcNormalWidth + bcSpaceWidth + bcSupplementWidth;
|
|
{return width of barcode in inches}
|
|
Result := Result / PixelsPerInchX;
|
|
end;
|
|
|
|
procedure TStBarCode.GetCheckCharacters(const S : string; var C, K : Integer);
|
|
var
|
|
I : Integer;
|
|
C1 : Integer;
|
|
C2 : Integer;
|
|
St : string;
|
|
begin
|
|
C := -1;
|
|
K := -1;
|
|
St := S;
|
|
case FBarCodeType of
|
|
bcUPC_A :
|
|
begin
|
|
if Length(St) >= 11 then begin
|
|
{get digits}
|
|
GetDigits(St);
|
|
{determine check character}
|
|
C1 := (bcDigits[1] + bcDigits[3] + bcDigits[5] + bcDigits[7] +
|
|
bcDigits[9] + bcDigits[11]) * 3;
|
|
C2 := bcDigits[2] + bcDigits[4] + bcDigits[6] +
|
|
bcDigits[8] + bcDigits[10];
|
|
C := 10 - ((C1 + C2) mod 10);
|
|
if C = 10 then
|
|
C := 0;
|
|
end;
|
|
end;
|
|
bcUPC_E :
|
|
begin
|
|
{get digits}
|
|
GetDigits(St);
|
|
{determine check character}
|
|
C1 := (bcDigits[2] + bcDigits[4] + bcDigits[6]) * 3;
|
|
C2 := bcDigits[1] + bcDigits[3] + bcDigits[5];
|
|
C := 10 - ((C1 + C2) mod 10);
|
|
if C = 10 then
|
|
C := 0;
|
|
end;
|
|
bcEAN_8 :
|
|
begin
|
|
if Length(St) >= 7 then begin
|
|
{get digits}
|
|
GetDigits(St);
|
|
{determine check character}
|
|
C1 := (bcDigits[1] + bcDigits[3] + bcDigits[5] + bcDigits[7]) * 3;
|
|
C2 := bcDigits[2] + bcDigits[4] + bcDigits[6];
|
|
C := 10 - ((C1 + C2) mod 10);
|
|
if C = 10 then
|
|
C := 0;
|
|
end;
|
|
end;
|
|
bcEAN_13 :
|
|
begin
|
|
if Length(St) >= 12 then begin
|
|
{get digits}
|
|
GetDigits(St);
|
|
{determine check character}
|
|
C1 := (bcDigits[2] + bcDigits[4] + bcDigits[6] + bcDigits[8] +
|
|
bcDigits[10] + bcDigits[12]) * 3;
|
|
C2 := bcDigits[1] + bcDigits[3] + bcDigits[5] + bcDigits[7] +
|
|
bcDigits[9] + bcDigits[11];
|
|
C := 10 - ((C1 + C2) mod 10);
|
|
if C = 10 then
|
|
C := 0;
|
|
end;
|
|
end;
|
|
bcInterleaved2of5 :
|
|
begin
|
|
{get digits}
|
|
bcDigitCount := GetDigits(St);
|
|
|
|
C1 := 0;
|
|
C2 := 0;
|
|
for I := 1 to bcDigitCount do
|
|
if Odd(I) then
|
|
C1 := C1 + bcDigits[I] {odd digits}
|
|
else
|
|
C2 := C2 + bcDigits[I]; {even digits}
|
|
C2 := C2 * 3;
|
|
|
|
C := 10 - ((C1 + C2) mod 10);
|
|
if C = 10 then
|
|
C := 0;
|
|
end;
|
|
bcCodabar :
|
|
begin
|
|
{get digits}
|
|
bcDigitCount := GetDigits(St);
|
|
|
|
C1 := 0;
|
|
for I := 1 to bcDigitCount do
|
|
C1 := C1 + bcDigits[I];
|
|
|
|
C := 16 - (C1 mod 16);
|
|
if C = 16 then
|
|
C := 0;
|
|
end;
|
|
bcCode11 :
|
|
begin
|
|
{get digits}
|
|
bcDigitCount := GetDigits(St);
|
|
C1 := 0;
|
|
for I := bcDigitCount downto 1 do
|
|
C1 := C1 + bcDigits[I]*(bcDigitCount-I+1);
|
|
C1 := C1 mod 11; {the "C" check character}
|
|
C2 := C1;
|
|
for I := bcDigitCount downto 1 do
|
|
C2 := C2 + bcDigits[I]*(bcDigitCount-I+2);
|
|
C2 := C2 mod 11; {the "K" check character}
|
|
K := C2;
|
|
C := C1;
|
|
end;
|
|
bcCode39 :
|
|
begin
|
|
{get digits}
|
|
bcDigitCount := GetDigits(St);
|
|
|
|
C1 := 0;
|
|
for I := 1 to bcDigitCount do
|
|
C1 := C1 + bcDigits[I];
|
|
|
|
C := 43 - (C1 mod 43);
|
|
if C = 43 then
|
|
C := 0;
|
|
end;
|
|
bcCode93 :
|
|
begin
|
|
{get digits}
|
|
bcDigitCount := GetDigits(St);
|
|
C1 := 0;
|
|
for I := bcDigitCount downto 1 do
|
|
C1 := C1 + bcDigits[I]*(bcDigitCount-I+1);
|
|
C1 := C1 mod 47; {the "C" check character}
|
|
C2 := C1;
|
|
for I := bcDigitCount downto 1 do
|
|
C2 := C2 + bcDigits[I]*(bcDigitCount-I+2);
|
|
C2 := C2 mod 47; {the "K" check character}
|
|
K := C2;
|
|
C := C1;
|
|
end;
|
|
bcCode128 :
|
|
begin
|
|
{get digits}
|
|
bcDigitCount := GetDigits(St);
|
|
|
|
C1 := bcDigits[1];
|
|
for I := 2 to bcDigitCount do
|
|
C1 := C1 + bcDigits[I]*(I-1);
|
|
|
|
C := C1 mod 103;
|
|
if C = 103 then
|
|
C := 0;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
function TStBarCode.GetDigits(Characters : string) : Integer;
|
|
|
|
procedure GetACode128CDigit (c : Char; var Index : Integer;
|
|
var bcDigitPos : Integer);
|
|
var
|
|
J : Integer;
|
|
|
|
begin
|
|
case (c) of
|
|
#130 : bcDigits[bcDigitPos + 1] := 98; {rest are manufactured characters}
|
|
#131 : bcDigits[bcDigitPos + 1] := 97;
|
|
#132 : bcDigits[bcDigitPos + 1] := 96;
|
|
#133 : bcDigits[bcDigitPos + 1] := 98;
|
|
#134 : bcDigits[bcDigitPos + 1] := 100;
|
|
#135 : bcDigits[bcDigitPos + 1] := 99;
|
|
#136 : bcDigits[bcDigitPos + 1] := 103;
|
|
#137 : bcDigits[bcDigitPos + 1] := 104;
|
|
#138 : bcDigits[bcDigitPos + 1] := 105;
|
|
#139 : bcDigits[bcDigitPos + 1] := 106;
|
|
else
|
|
try
|
|
J := StrToInt (Copy (Characters, Index, 2));
|
|
bcDigits[bcDigitPos + 1] := J;
|
|
Inc (Index);
|
|
except
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
end;
|
|
Inc (Index);
|
|
Inc (bcDigitPos);
|
|
end;
|
|
|
|
procedure GetACode128ABDigit (c : Char; var Index : Integer;
|
|
var bcDigitPos : Integer);
|
|
begin
|
|
case c of
|
|
' ' : bcDigits[bcDigitPos + 1] := 0;
|
|
'!' : bcDigits[bcDigitPos + 1] := 1;
|
|
'"' : bcDigits[bcDigitPos + 1] := 2;
|
|
'#' : bcDigits[bcDigitPos + 1] := 3;
|
|
'$' : bcDigits[bcDigitPos + 1] := 4;
|
|
'%' : bcDigits[bcDigitPos + 1] := 5;
|
|
'&' : bcDigits[bcDigitPos + 1] := 6;
|
|
'''' : bcDigits[bcDigitPos + 1] := 7;
|
|
'(' : bcDigits[bcDigitPos + 1] := 8;
|
|
')' : bcDigits[bcDigitPos + 1] := 9;
|
|
'*' : bcDigits[bcDigitPos + 1] := 10;
|
|
'+' : bcDigits[bcDigitPos + 1] := 11;
|
|
',' : bcDigits[bcDigitPos + 1] := 12;
|
|
'-' : bcDigits[bcDigitPos + 1] := 13;
|
|
'.' : bcDigits[bcDigitPos + 1] := 14;
|
|
'/' : bcDigits[bcDigitPos + 1] := 15;
|
|
'0'..'9' : bcDigits[bcDigitPos + 1] := 16 + Ord(c)-Ord('0');
|
|
':' : bcDigits[bcDigitPos + 1] := 26;
|
|
';' : bcDigits[bcDigitPos + 1] := 27;
|
|
'<' : bcDigits[bcDigitPos + 1] := 28;
|
|
'=' : bcDigits[bcDigitPos + 1] := 29;
|
|
'>' : bcDigits[bcDigitPos + 1] := 30;
|
|
'?' : bcDigits[bcDigitPos + 1] := 31;
|
|
'@' : bcDigits[bcDigitPos + 1] := 32;
|
|
'A'..'Z' : bcDigits[bcDigitPos + 1] := 33 + Ord(c)-Ord('A');
|
|
'[' : bcDigits[bcDigitPos + 1] := 59;
|
|
'\' : bcDigits[bcDigitPos + 1] := 60;
|
|
']' : bcDigits[bcDigitPos + 1] := 61;
|
|
'^' : bcDigits[bcDigitPos + 1] := 62;
|
|
'_' : bcDigits[bcDigitPos + 1] := 63;
|
|
#0, #31 : bcDigits[bcDigitPos + 1] := 64 + Ord(c); {control characters}
|
|
'`' : bcDigits[bcDigitPos + 1] := 64;
|
|
'a'..'z' : bcDigits[bcDigitPos + 1] := 65 + Ord(c)-Ord('a');
|
|
'{' : bcDigits[bcDigitPos + 1] := 91;
|
|
'|' : bcDigits[bcDigitPos + 1] := 92;
|
|
'}' : bcDigits[bcDigitPos + 1] := 93;
|
|
'~' : bcDigits[bcDigitPos + 1] := 94;
|
|
#130 : bcDigits[bcDigitPos + 1] := 98; {rest are manufactured characters}
|
|
#131 : bcDigits[bcDigitPos + 1] := 97;
|
|
#132 : bcDigits[bcDigitPos + 1] := 96;
|
|
#133 : bcDigits[bcDigitPos + 1] := 98;
|
|
#134 : bcDigits[bcDigitPos + 1] := 100;
|
|
#135 : bcDigits[bcDigitPos + 1] := 99;
|
|
#136 : bcDigits[bcDigitPos + 1] := 103;
|
|
#137 : bcDigits[bcDigitPos + 1] := 104;
|
|
#138 : bcDigits[bcDigitPos + 1] := 105;
|
|
#139 : bcDigits[bcDigitPos + 1] := 106;
|
|
else
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
Inc (Index);
|
|
Inc (bcDigitPos);
|
|
end;
|
|
|
|
function CountCode128Digits (Index : Integer) : Integer;
|
|
begin
|
|
Result := 0;
|
|
while (Index <= Length (Characters)) and
|
|
(Characters[Index] >= '0') and (Characters[Index] <= '9') do begin
|
|
Inc (Result);
|
|
Inc (Index);
|
|
end;
|
|
end;
|
|
|
|
function CheckCode128Digits (Index : Integer; CharsLen : Integer) : Boolean;
|
|
var
|
|
NumDigits : Integer;
|
|
begin
|
|
Result := False;
|
|
NumDigits := CountCode128Digits (Index);
|
|
if NumDigits mod 2 <> 0 then begin
|
|
Characters := Copy (Characters, 1, Index - 1) +
|
|
'0' + Copy (Characters, Index, CharsLen - Index + 1);
|
|
Result := True;
|
|
end;
|
|
end;
|
|
|
|
function GetCode128Digits : Integer;
|
|
var
|
|
I : Integer;
|
|
RLen : Integer;
|
|
CurMode : TStCode128CodeSubset;
|
|
NeedCharCount : Boolean;
|
|
Skip : Boolean;
|
|
|
|
begin
|
|
I := 1;
|
|
Result := Length (Characters);
|
|
RLen := 0;
|
|
CurMode := Self.Code128Subset;
|
|
NeedCharCount := Self.Code128Subset = csCodeC;
|
|
|
|
while I <= Result do begin
|
|
if (NeedCharCount) and
|
|
(Characters[I] >= '0') and (Characters[I] <= '9') then begin
|
|
NeedCharCount := False;
|
|
if CheckCode128Digits (I, Result) then
|
|
Inc (Result);
|
|
end;
|
|
|
|
Skip := False;
|
|
if (ExtendedSyntax) and (Characters[I] = '\') and
|
|
(I < Result) then begin
|
|
if ((Characters[I + 1] = 'A') or (Characters[I + 1] = 'a')) and
|
|
(CurMode <> csCodeA) then begin
|
|
Inc (RLen);
|
|
bcDigits[RLen] := 101;
|
|
CurMode := csCodeA;
|
|
Skip := True;
|
|
end else if ((Characters[I + 1] = 'B') or (Characters[I + 1] = 'b')) and
|
|
(CurMode <> csCodeB) then begin
|
|
Inc (RLen);
|
|
bcDigits[RLen] := 100;
|
|
CurMode :=csCodeB;
|
|
Skip := True;
|
|
end else if ((Characters[I + 1] = 'C') or (Characters[I + 1] = 'c')) and
|
|
(CurMode <> csCodeC) then begin
|
|
NeedCharCount := True;
|
|
Inc (RLen);
|
|
bcDigits[RLen] := 99;
|
|
CurMode := csCodeC;
|
|
Skip := True;
|
|
end else if (Characters[I + 1] = '\') then begin
|
|
GetACode128ABDigit ('\', I, RLen);
|
|
Skip := True;
|
|
end;
|
|
Inc (I);
|
|
end;
|
|
|
|
if not Skip then
|
|
case CurMode of
|
|
csCodeC :
|
|
GetACode128CDigit (Characters[I], I, RLen);
|
|
else
|
|
GetACode128ABDigit (Characters[I], I, RLen);
|
|
end
|
|
else
|
|
Inc (I);
|
|
end;
|
|
Result := RLen;
|
|
end;
|
|
|
|
var
|
|
I, J : Integer;
|
|
S : string;
|
|
begin
|
|
FillChar(bcDigits, SizeOf(bcDigits), #0);
|
|
Result := 0;
|
|
|
|
case FBarCodeType of
|
|
bcUPC_A, bcUPC_E, bcEAN_8, bcEAN_13, bcInterleaved2of5 :
|
|
begin
|
|
Result := Length(Characters);
|
|
for I := 1 to Result do
|
|
bcDigits[I] := StrToInt(Characters[I]);
|
|
end;
|
|
bcCodabar :
|
|
begin
|
|
Result := Length(Characters);
|
|
for I := 1 to Result do begin
|
|
case Characters[I] of
|
|
'0'..'9' : bcDigits[I] := StrToInt(Characters[I]);
|
|
'-' : bcDigits[I] := 10;
|
|
'$' : bcDigits[I] := 11;
|
|
':' : bcDigits[I] := 12;
|
|
'/' : bcDigits[I] := 13;
|
|
'.' : bcDigits[I] := 14;
|
|
'+' : bcDigits[I] := 15;
|
|
'A', 'a' : bcDigits[I] := 16;
|
|
'B', 'b' : bcDigits[I] := 17;
|
|
'C', 'c' : bcDigits[I] := 18;
|
|
'D', 'd' : bcDigits[I] := 19;
|
|
else
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
end;
|
|
end;
|
|
bcCode11 :
|
|
begin
|
|
Result := Length(Characters);
|
|
for I := 1 to Result do begin
|
|
case Characters[I] of
|
|
'0'..'9' : bcDigits[I] := StrToInt(Characters[I]);
|
|
'-' : bcDigits[I] := 10;
|
|
else
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
end;
|
|
end;
|
|
bcCode39 :
|
|
begin
|
|
Result := Length(Characters);
|
|
for I := 1 to Result do begin
|
|
case Characters[I] of
|
|
'0'..'9' : bcDigits[I] := StrToInt(Characters[I]);
|
|
'A'..'Z' : bcDigits[I] := Ord(Characters[I]) - Ord('A') + 10;
|
|
'-' : bcDigits[I] := 36;
|
|
'.' : bcDigits[I] := 37;
|
|
' ' : bcDigits[I] := 38;
|
|
'$' : bcDigits[I] := 39;
|
|
'/' : bcDigits[I] := 40;
|
|
'+' : bcDigits[I] := 41;
|
|
'%' : bcDigits[I] := 42;
|
|
'*' : bcDigits[I] := 43;
|
|
else
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
end;
|
|
end;
|
|
bcCode93 :
|
|
begin
|
|
Result := Length(Characters);
|
|
J := 1;
|
|
I := 1;
|
|
while I <= Result do begin
|
|
S := Code93Map[Characters[I]];
|
|
if Length(S) > 1 then begin
|
|
case S[1] of
|
|
'$' : bcDigits[J] := 43; {(+)}
|
|
'%' : bcDigits[J] := 44; {(%)}
|
|
'/' : bcDigits[J] := 45; {(/)}
|
|
'+' : bcDigits[J] := 46; {(+)}
|
|
else
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
Inc(J);
|
|
S := S[2];
|
|
end;
|
|
|
|
case S[1] of
|
|
'0'..'9' : bcDigits[J] := Ord(S[1])-Ord('0');
|
|
'A'..'Z' : bcDigits[J] := 10 + Ord(S[1])-Ord('A');
|
|
'-' : bcDigits[J] := 36;
|
|
'.' : bcDigits[J] := 37;
|
|
' ' : bcDigits[J] := 38;
|
|
'$' : bcDigits[J] := 39;
|
|
'/' : bcDigits[J] := 40;
|
|
'+' : bcDigits[J] := 41;
|
|
'%' : bcDigits[J] := 42;
|
|
else
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
Inc(I);
|
|
Inc(J);
|
|
end;
|
|
Result := J;
|
|
end;
|
|
bcCode128 :
|
|
Result := GetCode128Digits;
|
|
end;
|
|
end;
|
|
|
|
function TStBarCode.GetVersion : string;
|
|
begin
|
|
Result := StVersionStr;
|
|
end;
|
|
|
|
procedure TStBarCode.Loaded;
|
|
begin
|
|
inherited Loaded;
|
|
CalcBarCode;
|
|
end;
|
|
|
|
procedure TStBarCode.Paint;
|
|
var
|
|
Margin : Integer;
|
|
R : TRect;
|
|
begin
|
|
{use our font}
|
|
Canvas.Font := Font;
|
|
|
|
{clear the canvas}
|
|
Canvas.Brush.Color := Color;
|
|
Canvas.Brush.Style := bsSolid;
|
|
Canvas.FillRect(ClientRect);
|
|
|
|
{adjust height of rect to provide top and bottom margin}
|
|
R := ClientRect;
|
|
Margin := RectHeight(R)*10 div 100;
|
|
InflateRect(R, 0, -Margin);
|
|
PaintPrim(R);
|
|
end;
|
|
|
|
procedure TStBarCode.PaintPrim(const R : TRect);
|
|
begin
|
|
Canvas.Brush.Style := bsClear;
|
|
Canvas.Brush.Color := FBarColor;
|
|
Canvas.Pen.Color := FBarColor;
|
|
DrawBarCode(R);
|
|
end;
|
|
|
|
procedure TStBarCode.PaintToCanvas(ACanvas : TCanvas; ARect : TRect);
|
|
var
|
|
Margin : Integer;
|
|
SavedDC : LongInt;
|
|
R : TRect;
|
|
begin
|
|
Canvas.Handle := ACanvas.Handle;
|
|
SavedDC := SaveDC(ACanvas.Handle);
|
|
try
|
|
{use our font}
|
|
Canvas.Font := Font;
|
|
|
|
{clear the specified area of the canvas}
|
|
Canvas.Brush.Color := Color;
|
|
Canvas.Brush.Style := bsSolid;
|
|
Canvas.FillRect(ARect);
|
|
|
|
{adjust height of rect to provide top and bottom margin}
|
|
R := ARect;
|
|
Margin := RectHeight(R)*10 div 100;
|
|
InflateRect(R, 0, -Margin);
|
|
PaintPrim(R);
|
|
finally
|
|
Canvas.Handle := 0;
|
|
RestoreDC(ACanvas.Handle, SavedDC);
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.PaintToCanvasSize(ACanvas : TCanvas; X, Y, H : Double);
|
|
var
|
|
TH : Integer;
|
|
PixelsPerInchX : Integer;
|
|
PixelsPerInchY : Integer;
|
|
OldPPI : Integer;
|
|
SavedDC : LongInt;
|
|
R : TRect;
|
|
SmallestWidth : Double;
|
|
begin
|
|
Canvas.Handle := ACanvas.Handle;
|
|
SavedDC := SaveDC(ACanvas.Handle);
|
|
try
|
|
{get some information about this device context}
|
|
PixelsPerInchX := GetDeviceCaps(Canvas.Handle, LOGPIXELSX);
|
|
PixelsPerInchY := GetDeviceCaps(Canvas.Handle, LOGPIXELSY);
|
|
|
|
OldPPI := Canvas.Font.PixelsPerInch;
|
|
{this is necessary because of a Delphi buglet}
|
|
Canvas.Font.PixelsPerInch := PixelsPerInchY;
|
|
|
|
{use our font}
|
|
Canvas.Font := Font;
|
|
|
|
{determine narrowest line width}
|
|
SmallestWidth := SmallestLineWidth(PixelsPerInchX);
|
|
|
|
{find sizes for the BarCode elements}
|
|
bcBarModWidth := Round(FBarWidth/1000 * PixelsPerInchX);
|
|
if bcBarModWidth < FBarToSpaceRatio then
|
|
bcBarModWidth := Round(FBarToSpaceRatio);
|
|
if bcBarModWidth < SmallestWidth then
|
|
bcBarModWidth := Round(SmallestWidth);
|
|
bcSpaceModWidth := Round(bcBarModWidth / FBarToSpaceRatio);
|
|
CalcBarCodeWidth;
|
|
|
|
{convert to a rect}
|
|
R := Rect(Round(X * PixelsPerInchX),
|
|
Round(Y * PixelsPerInchY),
|
|
Round(X * PixelsPerInchX) + bcNormalWidth + bcSpaceWidth + bcSupplementWidth,
|
|
Round((Y + H) * PixelsPerInchY));
|
|
|
|
{increase height of rect to allow for text}
|
|
if FShowCode and (Code > '') then begin
|
|
TH :=Canvas.TextHeight(Code);
|
|
Inc(R.Bottom, TH + (TH div 4));
|
|
end;
|
|
|
|
PaintPrim(R);
|
|
Canvas.Font.PixelsPerInch := OldPPI;
|
|
Invalidate;
|
|
finally
|
|
Canvas.Handle := 0;
|
|
RestoreDC(ACanvas.Handle, SavedDC);
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.PaintToDC(DC : hDC; ARect : TRect);
|
|
var
|
|
Margin : Integer;
|
|
SavedDC : LongInt;
|
|
R : TRect;
|
|
begin
|
|
Canvas.Handle := DC;
|
|
SavedDC := SaveDC(DC);
|
|
try
|
|
{use our font}
|
|
Canvas.Font := Font;
|
|
|
|
{clear the specified area of the canvas}
|
|
Canvas.Brush.Color := Color;
|
|
Canvas.Brush.Style := bsSolid;
|
|
Canvas.FillRect(ARect);
|
|
|
|
{adjust height of rect to provide top and bottom margin}
|
|
R := ARect;
|
|
Margin := RectHeight(R)*10 div 100;
|
|
InflateRect(R, 0, -Margin);
|
|
PaintPrim(R);
|
|
finally
|
|
Canvas.Handle := 0;
|
|
RestoreDC(DC, SavedDC);
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.PaintToDCSize(DC : hDC; X, Y, W, H : Double);
|
|
begin
|
|
Canvas.Handle := DC;
|
|
PaintToCanvasSize(Canvas, X, Y, H);
|
|
end;
|
|
|
|
procedure TStBarCode.SaveToFile(const FileName : string);
|
|
var
|
|
Bitmap : TBitmap;
|
|
begin
|
|
Bitmap := TBitmap.Create;
|
|
try
|
|
Bitmap.Width := ClientWidth;
|
|
Bitmap.Height := ClientHeight;
|
|
PaintToDC(Bitmap.Canvas.Handle, ClientRect);
|
|
Bitmap.SaveToFile(FileName);
|
|
finally
|
|
Bitmap.Free;
|
|
end
|
|
end;
|
|
|
|
procedure TStBarCode.SetAddCheckChar(Value : Boolean);
|
|
begin
|
|
if Value <> FAddCheckChar then begin
|
|
FAddCheckChar := Value;
|
|
CalcBarCode;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetBarCodeType(Value : TStBarCodeType);
|
|
begin
|
|
if Value <> FBarCodeType then begin
|
|
FBarCodeType := Value;
|
|
CalcBarCode;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetBarColor(Value : TColor);
|
|
begin
|
|
if Value <> FBarColor then begin
|
|
FBarColor := Value;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetBarToSpaceRatio(Value : Double);
|
|
begin
|
|
{always uses a bar to space ratio of 1}
|
|
if FBarCodeType in [bcInterleaved2of5, bcCode11, bcCode39, bcCode93, bcCode128] then
|
|
Value := 1;
|
|
|
|
if Value <> FBarToSpaceRatio then begin
|
|
FBarToSpaceRatio := Value;
|
|
CalcBarCode;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetBarNarrowToWideRatio(Value : Integer);
|
|
begin
|
|
if Value <> FBarNarrowToWideRatio then begin
|
|
FBarNarrowToWideRatio := Value;
|
|
CalcBarCode;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetBarWidth(Value : Double);
|
|
begin
|
|
if Value <> FBarWidth then begin
|
|
FBarWidth := Value;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetBearerBars(Value : Boolean);
|
|
begin
|
|
if Value <> FBearerBars then begin
|
|
FBearerBars := Value;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetCode(const AValue : string);
|
|
begin
|
|
if FBarCodeType in [bcCode39] then
|
|
FCode := UpperCase(AValue)
|
|
else if FBarCodeType in [bcCodabar] then
|
|
FCode := LowerCase(AValue)
|
|
else
|
|
FCode := AValue;
|
|
CalcBarCode;
|
|
Invalidate;
|
|
end;
|
|
|
|
procedure TStBarCode.SetCode128Subset(Value : TStCode128CodeSubset);
|
|
begin
|
|
if Value <> FCode128Subset then begin
|
|
FCode128Subset := Value;
|
|
CalcBarCode;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetExtendedSyntax (const v : Boolean);
|
|
begin
|
|
if v <> FExtendedSyntax then begin
|
|
FExtendedSyntax := v;
|
|
CalcBarCode;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetShowCode(Value : Boolean);
|
|
begin
|
|
if Value <> FShowCode then begin
|
|
FShowCode := Value;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetShowGuardChars(Value : Boolean);
|
|
begin
|
|
if Value <> FShowGuardChars then begin
|
|
FShowGuardChars := Value;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetSupplementalCode(const Value : string);
|
|
begin
|
|
if Value <> FSupplementalCode then begin
|
|
FSupplementalCode := Value;
|
|
CalcBarCode;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetTallGuardBars(Value : Boolean);
|
|
begin
|
|
if Value <> FTallGuardBars then begin
|
|
FTallGuardBars := Value;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TStBarCode.SetVersion(const Value : string);
|
|
begin
|
|
end;
|
|
|
|
function TStBarCode.SmallestLineWidth(PixelsPerInch : Integer) : Double;
|
|
begin
|
|
Result := PixelsPerInch * 0.010; {10 mils}
|
|
if Result < 1 then
|
|
Result := 1;
|
|
end;
|
|
|
|
function TStBarCode.Validate(DisplayError : Boolean) : Boolean;
|
|
var
|
|
I : Integer;
|
|
CheckC : Integer;
|
|
CheckK : Integer;
|
|
begin
|
|
Result := True;
|
|
try
|
|
case FBarCodeType of
|
|
bcUPC_A :
|
|
begin
|
|
{11 or 12 characters}
|
|
if not (Length(Code) in [11, 12]) then
|
|
RaiseStError(EStBarCodeError, stscInvalidUPCACodeLen);
|
|
try
|
|
GetDigits(Code);
|
|
except
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
|
|
GetCheckCharacters(Code, CheckC, CheckK);
|
|
if (Length(Code) = 12) and (CheckC <> bcDigits[12]) then
|
|
RaiseStError(EStBarCodeError, stscInvalidCheckCharacter);
|
|
end;
|
|
bcUPC_E :
|
|
begin
|
|
{6 characters}
|
|
if not (Length(Code) = 6) then
|
|
RaiseStError(EStBarCodeError, stscInvalidUPCACodeLen);
|
|
try
|
|
GetDigits(Code);
|
|
except
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
end;
|
|
bcEAN_8 :
|
|
begin
|
|
{7 or 8 characters}
|
|
if not (Length(Code) in [7, 8]) then
|
|
RaiseStError(EStBarCodeError, stscInvalidEAN8CodeLen);
|
|
try
|
|
GetDigits(Code);
|
|
except
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
|
|
GetCheckCharacters(Code, CheckC, CheckK);
|
|
if (Length(Code) = 8) and (CheckC <> bcDigits[8]) then
|
|
RaiseStError(EStBarCodeError, stscInvalidCheckCharacter);
|
|
end;
|
|
bcEAN_13 :
|
|
begin
|
|
{12 or 13 characters}
|
|
if not (Length(Code) in [12, 13]) then
|
|
RaiseStError(EStBarCodeError, stscInvalidEAN13CodeLen);
|
|
try
|
|
GetDigits(Code);
|
|
except
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
|
|
GetCheckCharacters(Code, CheckC, CheckK);
|
|
if (Length(Code) = 13) and (CheckC <> bcDigits[13]) then
|
|
RaiseStError(EStBarCodeError, stscInvalidCheckCharacter);
|
|
end;
|
|
bcInterleaved2of5 :
|
|
begin
|
|
try
|
|
GetDigits(Code);
|
|
except
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
end;
|
|
bcCodabar :
|
|
begin
|
|
for I := 1 to Length(Code) do
|
|
if not (Code[I] in ['0'..'9', '-', '$', ':', '/', '.', '+', 'a'..'d', 'A'..'D']) then
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
bcCode11 :
|
|
begin
|
|
for I := 1 to Length(Code) do
|
|
if not (Code[I] in ['0'..'9', '-']) then
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
{test check characters}
|
|
if not FAddCheckChar then begin
|
|
GetCheckCharacters(Code, CheckC, CheckK);
|
|
if (StrToInt(Code[Length(Code)-1]) <> CheckC) or
|
|
(StrToInt(Code[Length(Code)]) <> CheckK) then
|
|
RaiseStError(EStBarCodeError, stscInvalidCheckCharacter);
|
|
end;
|
|
end;
|
|
bcCode39 :
|
|
begin
|
|
for I := 1 to Length(Code) do
|
|
if not (Code[I] in ['0'..'9', 'A'..'Z', 'a'..'z',
|
|
'-', '.', ' ', '$', '/', '+', '%', '*']) then
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
{check for embedded guard character}
|
|
for I := 2 to Length(Code)-1 do
|
|
if Code[I] = '*' then
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
bcCode93 :
|
|
begin
|
|
try
|
|
GetCheckCharacters(Code, CheckC, CheckK);
|
|
except
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
end;
|
|
bcCode128 :
|
|
begin
|
|
try
|
|
GetCheckCharacters(Code, CheckC, CheckK);
|
|
except
|
|
RaiseStError(EStBarCodeError, stscInvalidCharacter);
|
|
end;
|
|
end;
|
|
end;
|
|
{check supplemental code}
|
|
if FSupplementalCode > '' then
|
|
if not (Length(FSupplementalCode) in [2, 5]) then
|
|
RaiseStError(EStBarCodeError, stscInvalidSupCodeLen);
|
|
except
|
|
Result := False;
|
|
if DisplayError then
|
|
raise;
|
|
end;
|
|
end;
|
|
|
|
|
|
end.
|