Files
Password-Manager/android-client/ThirdParty/ZXing/2D Barcodes/Detector/ZXing.QrCode.Internal.AlignmentPatternImplementation.pas
T
r-zakarya dd9fd62dcb 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>
2026-09-17 18:38:41 +01:00

113 lines
3.6 KiB
ObjectPascal

{
* Copyright 2007 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* Original Author: Sean Owen
* Ported from ZXING Java Source: www.Redivivus.in (suraj.supekar@redivivus.in)
* Delphi Implementation by E.Spelt and K. Gossens
}
unit ZXing.QrCode.Internal.AlignmentPatternImplementation;
interface
uses
ZXing.QrCode.Internal.AlignmentPattern,
ZXing.ResultPoint,
ZXing.ResultPointImplementation;
// this is the function that actually creates IAlignmentPattern instances.
// the actual implementation of the interface is totally hidden to all other units,
// since even its declaration is in the implementation section of this unit
function NewAlignmentPattern(const posX, posY, estimatedModuleSize: Single):IAlignmentPattern;
implementation
{ TAlignmentPattern }
type
/// <summary> <p>Encapsulates an alignment pattern, which are the smaller square patterns found in
/// all but the simplest QR Codes.</p>
///
/// </summary>
TAlignmentPattern = class sealed(TResultPoint,IResultPoint,IAlignmentPattern)
private
estimatedModuleSize: Single;
constructor Create(const posX, posY, estimatedModuleSize: Single);
/// <summary> <p>Determines if this alignment pattern "about equals" an alignment pattern at the stated
/// position and size -- meaning, it is at nearly the same center with nearly the same size.</p>
/// </summary>
function aboutEquals(const moduleSize, i, j: Single): Boolean;
/// <summary>
/// Combines this object's current estimate of a finder pattern position and module size
/// with a new estimate. It returns a new {@code FinderPattern} containing an average of the two.
/// </summary>
/// <param name="i">The i.</param>
/// <param name="j">The j.</param>
/// <param name="newModuleSize">New size of the module.</param>
/// <returns></returns>
function combineEstimate(const i, j,
newModuleSize: Single): IAlignmentPattern;
end;
constructor TAlignmentPattern.Create(const posX, posY,
estimatedModuleSize: Single);
begin
inherited Create(posX, posY);
Self.estimatedModuleSize := estimatedModuleSize;
end;
function TAlignmentPattern.aboutEquals(const moduleSize, i, j: Single): Boolean;
var
moduleSizeDiff: Single;
begin
if ((Abs(i - Self.y) <= moduleSize) and
(Abs(j - Self.x) <= moduleSize)) then
begin
moduleSizeDiff := Abs(moduleSize - self.estimatedModuleSize);
Result := ((moduleSizeDiff <= 1) or
(moduleSizeDiff <= self.estimatedModuleSize));
end else Result := false;
end;
function TAlignmentPattern.combineEstimate(const i, j,
newModuleSize: Single): IAlignmentPattern;
var
combinedX,
combinedY,
combinedModuleSize : Single;
begin
combinedX := (self.x + j) / 2.0;
combinedY := (self.y + i) / 2.0;
combinedModuleSize := (estimatedModuleSize + newModuleSize) / 2.0;
Result := TAlignmentPattern.Create(combinedX, combinedY, combinedModuleSize);
end;
function NewAlignmentPattern(const posX, posY, estimatedModuleSize: Single):IAlignmentPattern;
begin
result := TAlignmentPattern.Create(posX,posY,estimatedModuleSize);
end;
end.