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>
This commit is contained in:
r-zakarya
+83
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unit ZXing.Common.Detector.MathUtils;
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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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* Implemented by E. Spelt for Delphi
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* Restructured by K. Gossens
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}
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interface
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uses
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System.SysUtils;
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type
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TMathUtils = class sealed
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public
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class function distance(const aX, aY, bX, bY: Double): Single; static;
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class function round(d: Single): Integer; static;
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// class function Asr(x, y: integer): integer; overload; static;
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class function Asr(Value: Int64; ShiftBits: integer): Int64; static;
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end;
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implementation
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{ TMathUtils }
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class function TMathUtils.distance(const aX, aY, bX, bY: Double): Single;
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var
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xDiff, yDiff: double;
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begin
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xDiff := aX - bX;
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yDiff := aY - bY;
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result := Sqrt(xDiff * xDiff + yDiff * yDiff);
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end;
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class function TMathUtils.round(d: Single): Integer;
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begin
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if (Single.IsNaN(d)) then
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begin
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Result := 0;
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exit
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end;
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if (Single.IsPositiveInfinity(d)) then
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begin
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Result := $7fffffff;
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exit;
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end;
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if (d < 0)
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then
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Result := Trunc(d + (-0.5))
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else
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Result := Trunc(d + 0.5);
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end;
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{
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class function TMathUtils.Asr(x, y: integer): integer;
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begin
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result := x div (1 shl y);
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end;
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}
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class function TMathUtils.Asr(Value: Int64; ShiftBits: integer): Int64;
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begin
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result := Value shr ShiftBits;
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if (Value and $8000000000000000) > 0 then
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result := result or ($FFFFFFFFFFFFFFFF shl (64 - ShiftBits));
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end;
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end.
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Vendored
+398
@@ -0,0 +1,398 @@
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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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* Implemented by E. Spelt for Delphi
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* Restructured by K. Gossens
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}
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unit ZXing.Common.Detector.WhiteRectangleDetector;
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interface
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uses
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System.SysUtils,
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ZXing.Common.BitMatrix,
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ZXing.Common.Detector.MathUtils,
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ZXing.ResultPoint;
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type
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TWhiteRectangleDetector = class sealed
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private const
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CORR: Integer = 1;
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INIT_SIZE: Integer = 10;
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var
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downInit: Integer;
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height: Integer;
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image: TBitMatrix;
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leftInit: Integer;
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rightInit: Integer;
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upInit: Integer;
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width: Integer;
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constructor Create(image: TBitMatrix); overload;
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constructor Create(image: TBitMatrix; initSize: Integer; x: Integer;
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y: Integer); overload;
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function centerEdges(y: IResultPoint; z: IResultPoint; x: IResultPoint;
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t: IResultPoint): TArray<IResultPoint>;
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function containsBlackPoint(a: Integer; b: Integer; fixed: Integer;
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horizontal: boolean): boolean;
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function getBlackPointOnSegment(aX: Single; aY: Single; bX: Single;
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bY: Single): IResultPoint;
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public
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class function New(image: TBitMatrix): TWhiteRectangleDetector; overload;
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class function New(image: TBitMatrix; initSize: Integer; x: Integer;
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y: Integer): TWhiteRectangleDetector; overload; static;
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function detect(): TArray<IResultPoint>;
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end;
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implementation
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{ TWhiteRectangleDetector }
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constructor TWhiteRectangleDetector.Create(image: TBitMatrix);
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begin
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Self.Create(image, 10, image.width div 2, image.height div 2);
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end;
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constructor TWhiteRectangleDetector.Create(image: TBitMatrix; initSize: Integer;
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x: Integer; y: Integer);
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var
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halfsize: Integer;
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begin
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Self.image := image;
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Self.height := image.height;
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Self.width := image.width;
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halfsize := (initSize div 2);
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Self.leftInit := (x - halfsize);
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Self.rightInit := (x + halfsize);
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Self.upInit := (y - halfsize);
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Self.downInit := (y + halfsize);
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end;
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function TWhiteRectangleDetector.centerEdges(y: IResultPoint; z: IResultPoint;
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x: IResultPoint; t: IResultPoint): TArray<IResultPoint>;
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var
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yi, yj, zi, zj, xi, xj, ti, tj: Single;
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begin
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yi := y.x;
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yj := y.y;
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zi := z.x;
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zj := z.y;
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xi := x.x;
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xj := x.y;
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ti := t.x;
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tj := t.y;
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if (yi < (Self.width div 2)) then
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begin
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Result := TArray<IResultPoint>.Create(TResultPointHelpers.CreateResultPoint((ti - 1), (tj + 1)
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), TResultPointHelpers.CreateResultPoint((zi + 1), (zj + 1)), TResultPointHelpers.CreateResultPoint((xi - 1),
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(xj - 1)), TResultPointHelpers.CreateResultPoint((yi + 1), (yj - 1)));
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exit;
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end;
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Result := TArray<IResultPoint>.Create(TResultPointHelpers.CreateResultPoint((ti + 1), (tj + 1)),
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TResultPointHelpers.CreateResultPoint((zi + 1), (zj - 1)), TResultPointHelpers.CreateResultPoint((xi - 1),
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(xj + 1)), TResultPointHelpers.CreateResultPoint((yi - 1), (yj - 1)));
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end;
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function TWhiteRectangleDetector.containsBlackPoint(a: Integer; b: Integer;
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fixed: Integer; horizontal: boolean): boolean;
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var
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x, y: Integer;
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begin
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if (horizontal) then
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begin
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x := a;
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while ((x <= b)) do
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begin
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if (Self.image[x, fixed]) then
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begin
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Result := true;
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exit;
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end;
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Inc(x)
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end;
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end
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else
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begin
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y := a;
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while ((y <= b)) do
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begin
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if (Self.image[fixed, y]) then
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begin
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Result := true;
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exit;
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end;
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Inc(y);
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end;
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end;
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Result := false;
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end;
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class function TWhiteRectangleDetector.New(image: TBitMatrix)
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: TWhiteRectangleDetector;
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var
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instance: TWhiteRectangleDetector;
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begin
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Result := nil;
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if (image <> nil) then
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begin
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instance := TWhiteRectangleDetector.Create(image);
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if (((instance.upInit >= 0) and (instance.leftInit >= 0)) and
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((instance.downInit < instance.height) and
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(instance.rightInit < instance.width))) then
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Result := instance
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else
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instance.Free;
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end;
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end;
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class function TWhiteRectangleDetector.New(image: TBitMatrix; initSize: Integer;
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x: Integer; y: Integer): TWhiteRectangleDetector;
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var
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instance: TWhiteRectangleDetector;
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begin
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instance := TWhiteRectangleDetector.Create(image, initSize, x, y);
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if (((instance.upInit >= 0) and (instance.leftInit >= 0)) and
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((instance.downInit < instance.height) and
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(instance.rightInit < instance.width))) then
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Result := instance
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else
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begin
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instance.Free;
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Result := nil;
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end;
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end;
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function TWhiteRectangleDetector.detect: TArray<IResultPoint>;
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var
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left, right, up, down: Integer;
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sizeExceeded, aBlackPointFoundOnBorder, atLeastOneBlackPointFoundOnBorder,
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atLeastOneBlackPointFoundOnRight, atLeastOneBlackPointFoundOnBottom,
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atLeastOneBlackPointFoundOnLeft, atLeastOneBlackPointFoundOnTop,
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rightBorderNotWhite, bottomBorderNotWhite, leftBorderNotWhite,
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topBorderNotWhite: boolean;
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i: Integer;
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z, t, x, y: IResultPoint;
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maxSize: Integer;
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begin
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z := nil;
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t := nil;
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x := nil;
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y := nil;
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left := Self.leftInit;
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right := Self.rightInit;
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up := Self.upInit;
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down := Self.downInit;
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sizeExceeded := false;
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aBlackPointFoundOnBorder := true;
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atLeastOneBlackPointFoundOnBorder := false;
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atLeastOneBlackPointFoundOnRight := false;
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atLeastOneBlackPointFoundOnBottom := false;
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atLeastOneBlackPointFoundOnLeft := false;
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atLeastOneBlackPointFoundOnTop := false;
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while (aBlackPointFoundOnBorder) do
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begin
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aBlackPointFoundOnBorder := false;
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rightBorderNotWhite := true;
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while ((rightBorderNotWhite or (not atLeastOneBlackPointFoundOnRight)) and
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(right < Self.width)) do
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begin
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rightBorderNotWhite := Self.containsBlackPoint(up, down, right, false);
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if (rightBorderNotWhite) then
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begin
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Inc(right);
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aBlackPointFoundOnBorder := true;
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atLeastOneBlackPointFoundOnRight := true;
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end
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else if (not atLeastOneBlackPointFoundOnRight) then
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Inc(right);
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end;
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if (right >= Self.width) then
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begin
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sizeExceeded := true;
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break;
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end;
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bottomBorderNotWhite := true;
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while ((bottomBorderNotWhite or (not atLeastOneBlackPointFoundOnBottom)) and
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(down < Self.height)) do
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begin
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bottomBorderNotWhite := Self.containsBlackPoint(left, right, down, true);
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if (bottomBorderNotWhite) then
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begin
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Inc(down);
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aBlackPointFoundOnBorder := true;
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atLeastOneBlackPointFoundOnBottom := true;
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end
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else if (not atLeastOneBlackPointFoundOnBottom) then
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Inc(down);
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end;
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if (down >= Self.height) then
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begin
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sizeExceeded := true;
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break;
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end;
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leftBorderNotWhite := true;
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while ((leftBorderNotWhite or (not atLeastOneBlackPointFoundOnLeft)) and
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(left >= 0)) do
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begin
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leftBorderNotWhite := Self.containsBlackPoint(up, down, left, false);
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if (leftBorderNotWhite) then
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begin
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Dec(left);
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aBlackPointFoundOnBorder := true;
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atLeastOneBlackPointFoundOnLeft := true;
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end
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else if (not atLeastOneBlackPointFoundOnLeft) then
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Dec(left);
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end;
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if (left < 0) then
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begin
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sizeExceeded := true;
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break;
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end;
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topBorderNotWhite := true;
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while ((topBorderNotWhite or (not atLeastOneBlackPointFoundOnTop)) and
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(up >= 0)) do
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begin
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topBorderNotWhite := Self.containsBlackPoint(left, right, up, true);
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if (topBorderNotWhite) then
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begin
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Dec(up);
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aBlackPointFoundOnBorder := true;
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atLeastOneBlackPointFoundOnTop := true;
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end
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else if (not atLeastOneBlackPointFoundOnTop) then
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Dec(up);
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end;
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if (up < 0) then
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begin
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sizeExceeded := true;
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break;
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end;
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if (aBlackPointFoundOnBorder) then
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atLeastOneBlackPointFoundOnBorder := true;
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end;
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if (not(not sizeExceeded and atLeastOneBlackPointFoundOnBorder)) then
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begin
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Result := nil;
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exit;
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end;
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maxSize := (right - left);
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i := 1;
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while ((i < maxSize)) do
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begin
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z := Self.getBlackPointOnSegment(left, (down - i), (left + i), down);
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if (z <> nil) then
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break;
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Inc(i);
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end;
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if (z = nil) then
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begin
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Result := nil;
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exit;
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end;
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i := 1;
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while ((i < maxSize)) do
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begin
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t := Self.getBlackPointOnSegment(left, (up + i), (left + i), up);
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if (t <> nil) then
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break;
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Inc(i);
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end;
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if (t = nil) then
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begin
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Result := nil;
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exit;
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end;
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i := 1;
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while ((i < maxSize)) do
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begin
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x := Self.getBlackPointOnSegment(right, (up + i), (right - i), up);
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if (x <> nil) then
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break;
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Inc(i);
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end;
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if (x = nil) then
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begin
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Result := nil;
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exit;
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end;
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y := nil;
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i := 1;
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while ((i < maxSize)) do
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begin
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y := Self.getBlackPointOnSegment(right, (down - i), (right - i), down);
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if (y <> nil) then
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break;
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Inc(i);
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end;
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if (y = nil) then
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begin
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Result := nil;
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exit;
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end;
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Result := Self.centerEdges(y, z, x, t);
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end;
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function TWhiteRectangleDetector.getBlackPointOnSegment(aX: Single; aY: Single;
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bX: Single; bY: Single): IResultPoint;
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var
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i, x, y, dist: Integer;
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xStep, yStep: Single;
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begin
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dist := TMathUtils.round(TMathUtils.distance(aX, aY, bX, bY));
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xStep := ((bX - aX) / dist);
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yStep := ((bY - aY) / dist);
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i := 0;
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while ((i < dist)) do
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begin
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x := TMathUtils.round((aX + (i * xStep)));
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y := TMathUtils.round((aY + (i * yStep)));
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if (Self.image[x, y]) then
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begin
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Result := TResultPointHelpers.CreateResultPoint(x, y);
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exit;
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end;
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Inc(i);
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end;
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Result := nil;
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end;
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end.
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