Differential D27909 Diff 77610 src/lib/qrcodebarcode.cpp

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src/lib/qrcodebarcode.cpp

1/* 1​/*
2 SPDX-FileCopyrightText: 2010-2016 Sune Vuorela <sune@vuorela.dk> 2​ SPDX-FileCopyrightText: 2010-2016 Sune Vuorela <sune@vuorela.dk>
3 3​
4 SPDX-License-Identifier: MIT 4​ SPDX-License-Identifier: MIT
5*/ 5​*/
6 6​
7#include "qrcodebarcode.h" 7​#include "qrcodebarcode.h"
8#include <qrencode.h> 8​#include <qrencode.h>
9#include <QColor> 9​#include <QColor>
10 10​
11using namespace Prison; 11​using namespace Prison;
12 12​
13QRCodeBarcode::QRCodeBarcode() : AbstractBarcode(AbstractBarcode::TwoDimensions) {} 13​QRCodeBarcode::QRCodeBarcode() : AbstractBarcode(AbstractBarcode::TwoDimensions) {}
14QRCodeBarcode::~QRCodeBarcode() = default; 14​QRCodeBarcode::~QRCodeBarcode() = default;
15 15​
16QImage QRCodeBarcode::paintImage(const QSizeF& size) { 16​QImage QRCodeBarcode::paintImage(const QSizeF& size) {
17 const int width = qRound(qMin(size.width(),size.height())); 17​ Q_UNUSED(size);
18 if(data().size()==0 || width==0) { ​
19 return QImage(); ​
20 } ​
21 const QByteArray trimmedData(data().trimmed().toUtf8()); 18​ const QByteArray trimmedData(data().trimmed().toUtf8());
22 QRcode* code = QRcode_encodeString8bit(trimmedData.constData(), 0, QR_ECLEVEL_Q); 19​ QRcode* code = QRcode_encodeString8bit(trimmedData.constData(), 0, QR_ECLEVEL_Q);
23 if(!code) { 20​ if(!code) {
24 return QImage(); 21​ return QImage();
25 } 22​ }
26 const int margin = 2; 23​ const int margin = 2;
27 /*32 bit colors, 8 bit pr byte*/ 24​ /*32 bit colors, 8 bit pr byte*/
28 uchar* img = new uchar[4 *sizeof(char*)*(2*margin + code->width)*(2*margin* + code->width)]; 25​ uchar* img = new uchar[4 *sizeof(char*)*(2*margin + code->width)*(2*margin* + code->width)];
Show All 30 Lines54 } else {
59 for(int i =0 ; i<4 ; i++) { 56​ for(int i =0 ; i<4 ; i++) {
60 *p = background[i]; 57​ *p = background[i];
61 p++; 58​ p++;
62 } 59​ }
63 } 60​ }
64 } 61​ }
65 } 62​ }
66 } 63​ }
67 QImage tmp(img,code->width+2*margin,code->width+2*margin,QImage::Format_ARGB32); 64​
68 setMinimumSize(QSizeF(tmp.width()*4,tmp.height()*4)); 65​ const auto result = QImage(img, code->width+2*margin, code->width+2*margin, QImage::Format_ARGB32).copy(); // deep copy as we are going to delete img
69 QImage ret = tmp.convertToFormat(QImage::Format_ARGB32).scaled(qMax(tmp.width()*4,width),qMax(tmp.height()*4,width)); //4 is determined by trial and error. 66​ setMinimumSize(QSizeF(result.width(), result.height()));
70 delete[] img; 67​ delete[] img;
71 QRcode_free(code); 68​ QRcode_free(code);
72 return ret; 69​ return result;
73} 70​}