下载源码
tar -xvf zint-2.6.7.tar.gz
cd zint-2.6.7/backend_qt/
若不依赖png,则编辑backend_qt.pro
DEFINES += ZINT_VERSION="\\\"2.6.7\\\""
改成
DEFINES += NO_PNG ZINT_VERSION="\\\"2.6.7\\\""
默认编译的是静态库,若要编译动态库 则编辑backend_qt.pro
CONFIG += staticlib
#CONFIG += dll
改成
#CONFIG += staticlib
CONFIG += dll
生成Makefile
交叉编译,则调用交叉编译出的qt工具
/usr/local/qt5-arm/bin/qmake
若是pc编译,则调用系统工具
qmake
编译
make
静态编译生成libQtZint.a,动态编译生成libQtZint.so.2.6.7 libQtZint.so.2 libQtZint.so.2.6 libQtZint.so把字符串转成条形码并显示在label上
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#include "qzint.h"
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static QImage Text2QImg(const QString &str)
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{
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Zint::QZint qzint;
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qzint.setSymbol(BARCODE_CODE128);
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qzint.setScale(1);
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qzint.setText(str);
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QImage img(480, 320, QImage::Format_RGB888);
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QPainter painter(&img);
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QRectF paintRect(30, 50, 430, 230);
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qzint.render(painter, paintRect);
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return img;
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}
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QImage img = Text2QImage("1234567");
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ui->label->setPixmap(QPixmap::fromImage(img));
作者:帅得不敢出门
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