feat(apk): scanner le QR du poste depuis l'app (ZXing.Delphi, Apache 2.0)
Le scanner du systeme demandait avec quoi ouvrir le lien. L'app ouvre la camera arriere, decode une image sur quatre et remplit URL + jeton des qu'un lien pmserver://sync est lu. Rien n'est enregistre avant Save. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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{
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* Copyright 2008 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* Original Authors: dswitkin@google.com (Daniel Switkin), Sean Owen and
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* alasdair@google.com (Alasdair Mackintosh)
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*
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* Delphi Implementation by E. Spelt
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}
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unit ZXing.OneD.EAN8Reader;
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interface
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uses
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System.SysUtils,
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System.Generics.Collections,
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System.Math,
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ZXing.OneD.OneDReader,
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ZXing.Common.BitArray,
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ZXing.OneD.UPCEANReader,
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ZXing.ReadResult,
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ZXing.DecodeHintType,
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ZXing.ResultPoint,
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ZXing.BarcodeFormat;
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type
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/// <summary>
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/// <p>Implements decoding of the EAN-8 format.</p>
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/// </summary>
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TEAN8Reader = class(TUPCEANReader)
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private
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class var DecodeMiddleCounters: TArray<Integer>;
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class procedure DoInitialize();
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class procedure DoFinalize();
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public
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class function DecodeMiddle(const row: IBitArray;
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const startRange: TArray<Integer>; const resultString: TStringBuilder)
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: Integer; override;
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function BarcodeFormat: TBarcodeFormat; override;
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end;
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implementation
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function TEAN8Reader.BarcodeFormat: TBarcodeFormat;
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begin
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result := TBarcodeFormat.EAN_8;
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end;
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class procedure TEAN8Reader.DoFinalize;
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begin
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DecodeMiddleCounters := nil;
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end;
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class procedure TEAN8Reader.DoInitialize;
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begin
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SetLength(DecodeMiddleCounters, 4);
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end;
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class function TEAN8Reader.DecodeMiddle(const row: IBitArray;
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const startRange: TArray<Integer>;
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const resultString: TStringBuilder): Integer;
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var
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ending, rowOffset, x, bestMatch: Integer;
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counter: Integer;
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counters, middleRange: TArray<Integer>;
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begin
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counters := self.DecodeMiddleCounters;
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counters[0] := 0;
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counters[1] := 0;
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counters[2] := 0;
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counters[3] := 0;
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ending := row.Size;
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rowOffset := startRange[1];
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x := 0;
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while (((x < 4) and (rowOffset < ending))) do
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begin
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if (not TUPCEANReader.decodeDigit(row, counters, rowOffset,
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TUPCEANReader.L_PATTERNS, bestMatch)) then
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begin
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result := -1;
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exit
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end;
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resultString.Append(IntToStr(bestMatch));
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for counter in counters do
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begin
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inc(rowOffset, counter)
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end;
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inc(x)
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end;
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middleRange := TUPCEANReader.findGuardPattern(row, rowOffset, true,
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TUPCEANReader.MIDDLE_PATTERN);
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if (middleRange = nil) then
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begin
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result := -1;
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exit
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end;
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rowOffset := middleRange[1];
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x := 0;
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while (((x < 4) and (rowOffset < ending))) do
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begin
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if (not TUPCEANReader.decodeDigit(row, counters, rowOffset,
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TUPCEANReader.L_PATTERNS, bestMatch)) then
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begin
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result := -1;
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exit
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end;
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resultString.Append(IntToStr(bestMatch));
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for counter in counters do
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begin
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inc(rowOffset, counter)
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end;
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inc(x)
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end;
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result := rowOffset;
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end;
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initialization
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TEAN8Reader.DoInitialize;
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finalization
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TEAN8Reader.DoFinalize;
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end.
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